Segmented lifting and separating type hot melting cavity

Abstract

The utility model discloses a segmented lifting and separating type hot melting cavity which comprises an upper cavity, a lower cavity and a lower cavity, the upper cavity comprises a plurality of upper segmented cavities which are sequentially arranged side by side, and the adjacent upper segmented cavities abut against one another end to end; the lower cavity comprises a plurality of lower segmented cavities which are sequentially arranged side by side, and the lower segmented cavities are in one-to-one correspondence with the upper segmented cavities and are pressed on the upper segmented cavities; and the connecting piece is used for connecting the plurality of upper segmented cavities in the upper cavity so as to relatively fix each upper segmented cavity, and is used for connecting the plurality of lower segmented cavities in the lower cavity so as to relatively fix each lower segmented cavity. The sectional type design is adopted, the interior of the cavity is convenient to clean, meanwhile, only the abraded or corroded sectional cavity can be replaced, and the use cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hot melt extruders, and in particular to a segmented hot melt cavity. Background Art

[0002] The production process of hot melt extruder is usually to add mixed powder, granules or liquid into the extruder through a feeder. The powder, molten material and / or liquid flow is processed in the cavity, conveyed, mixed and extruded by the screw, and then continuously discharged at the outlet of the cavity.

[0003] However, some materials that use the hot melt process will have a higher viscosity after melting, and the materials will harden after cooling. After production is completed, some molten materials will adhere to the surface of the cavity. Although the upper and lower cavities of some existing hot melt cavities are detachably connected, the overall length of the upper and lower cavities is relatively long. When cleaning, the entire cavity needs to be removed. In the case of a long cavity length, if the cavity is an integral type, a larger space is required for soaking and cleaning, which will cause some inconvenience. At the same time, if the cavity is worn or corroded at a certain part, the entire cavity needs to be replaced. As one of the core components of the extruder, the cavity requires relatively high processing precision, and the entire replacement increases the cost of use.

[0004] Therefore, in view of the above technical problems, how to provide a hot melt cavity that is easy to disassemble and clean in sections is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of the present application is to provide a segmented hot melt cavity, which adopts a segmented design to facilitate cleaning of the inside of the cavity. At the same time, only the worn or corroded segmented cavity can be replaced, thereby reducing the cost of use.

[0006] To achieve the above objectives, the present application provides a segmented hot melt chamber, comprising:

[0007] The upper cavity body comprises a plurality of upper segmented cavities arranged in sequence and in parallel, with the adjacent upper segmented cavities butting against each other end to end;

[0008] The lower cavity body comprises a plurality of lower segmented cavities arranged in sequence and in parallel, wherein the lower segmented cavities correspond to the upper segmented cavities one by one and are pressed tightly against the upper segmented cavities;

[0009] A connecting piece is used to connect several of the upper segmented cavities in the upper cavity body so that each of the upper segmented cavities is relatively fixed, and is used to connect several of the lower segmented cavities in the lower cavity body so that each of the lower segmented cavities is relatively fixed.

[0010] Preferably, the connecting member comprises a long stud and a nut matched with the long stud, the long stud has threads at least at both ends thereof, and the number of the long studs is at least two;

[0011] One of the long studs is sequentially inserted into each of the upper segmented cavities, and each of the upper segmented cavities is compressed and fixed to the long stud by the nut;

[0012] Another of the long studs is sequentially inserted into each of the lower segment cavities, and each of the lower segment cavities is compressed and fixed on the long stud by the nut.

[0013] Preferably, a threaded hole is provided at the end of the upper segmented cavity at the outermost end of one side of the upper cavity body, and through holes penetrating the upper segmented cavity itself and corresponding to the position of the threaded hole are provided on the other upper segmented cavities in the upper cavity body except for the threaded hole, and the long studs are sequentially extended into the through holes until one end is threadedly connected with the threaded hole;

[0014] A countersunk hole is provided at the end of the upper segmented cavity at the outermost end on the other side of the upper cavity body, and the countersunk hole corresponds to the position of the through hole. The other end of the long stud is located in the countersunk hole and is threadedly connected with the nut to press and fix each upper segmented cavity;

[0015] The pressing and fixing method of the lower segment cavity by the long stud is the same as the pressing and fixing method of the upper segment cavity.

[0016] Preferably, in any two adjacent through holes corresponding to the same long stud, a hollow pin coaxial with the through hole is provided in one of the through holes, and the hollow pin is inserted into the other through hole, and the long stud passes through one through hole, the hollow pin, and the other through hole in sequence.

[0017] Preferably, at least one side wall of the upper segment cavity is provided with a handle, and / or at least one side wall of the lower segment cavity is provided with the handle.

[0018] Preferably, a short stud is provided on the end surface of the upper segmented cavity away from the lower segmented cavity, and a short stud is provided on the end surface of the lower segmented cavity away from the upper segmented cavity, and the short stud has threads at least at both ends thereof;

[0019] The thread at one end of the short stud is threadedly connected to the upper segmented cavity or the lower segmented cavity, and the other end passes through the upper heating plate or the lower heating plate, and the thread at the other end of the short stud cooperates with the ball nut to fix the upper segmented cavity and the lower segmented cavity on the upper heating plate and the lower heating plate respectively.

[0020] Preferably, a positioning pin is provided on the end surface of the upper segmented cavity facing the lower segmented cavity, and the positioning pin cooperates with a positioning groove on the lower segmented cavity to make the positions of the upper segmented cavity correspond to those of the lower segmented cavity.

[0021] Preferably, a screw groove is provided on the end faces facing each other of the upper segmented cavity and the lower segmented cavity, a screw is arranged in the screw groove, the screw is located between the upper segmented cavity and the lower segmented cavity, and a feed port connected to the screw groove is provided on the upper segmented cavity, so that the screw can mix and extrude the material in the screw groove and discharge it out of the cavity.

[0022] Preferably, each of the upper segmented cavities is provided with a feed port, and a barrel plug is provided on the outer periphery of each feed port for sealing, and a feed barrel connected with the screw groove is provided at the feed port.

[0023] Compared with the above-mentioned background technology, the present application uses a connector to fix several upper segmented cavities to form an upper cavity. Similarly, a connector is used to fix several lower segmented cavities to form a lower cavity. The upper cavity and the lower cavity cooperate to form a cavity for conveying, mixing, and extrusion. When cleaning is required, each segmented cavity can be removed. Each segmented cavity is shorter in length, and less space is required for soaking and cleaning, which makes cleaning more convenient and more thorough. In addition, if one or more of the segments are damaged by wear, corrosion, etc. and need to be replaced, only the corresponding damaged segmented cavity needs to be removed and a new segmented cavity needs to be installed, and then fixed by the connector. Disassembly and assembly are convenient and quick, and there is no need to replace the entire cavity, thereby reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the location structure of the segmented hot melt cavity provided in the embodiment of the present application;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a segmented hot melt cavity provided in an embodiment of the present application;

[0027] Figure 3 A cross-sectional view of a segmented hot melt cavity provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the hollow pin structure provided in an embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the positioning pin structure provided in an embodiment of the present application.

[0030] In the figure: 1, upper cavity 11, upper segmented cavity 12, feed port 13, hollow pin 14, screw groove 15, positioning pin 2, lower cavity 21, lower segmented cavity 3, upper heating plate 4, lower heating plate 5, barrel plug 6, feed barrel 7, short stud 8, handle 9, long stud. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figure 2 As shown, in this embodiment, a segmented hot melt cavity is provided, which includes an upper cavity 1, a lower cavity 2 and a connecting piece. The upper cavity 1 cooperates with the lower cavity 2 to form an internal cavity for conveying, mixing and extrusion.

[0035] Specifically, the upper cavity body 1 includes a plurality of upper segmented cavities 11 arranged in sequence and side by side, and the adjacent upper segmented cavities 11 are butted against each other end to end, so as to ensure that the material will not overflow from the gap between two adjacent upper segmented cavities 11 .

[0036] Similarly, the lower cavity 2 includes a plurality of lower segmented cavities 21 arranged in sequence side by side, and the lower segmented cavities 21 correspond to the upper segmented cavities 11 one by one and are pressed against the upper segmented cavities 11. In other words, the plurality of upper segmented cavities 11 together constitute the upper cavity 1, and the plurality of lower segmented cavities 21 together constitute the lower cavity 2. The upper cavity 1 and the lower cavity 2 are pressed together by external force to ensure that the material does not overflow from the contact surface between the upper cavity 1 and the lower cavity 2.

[0037] The connecting piece is used to connect several upper segmented cavities 11 in the upper cavity 1 so that each upper segmented cavity 11 is relatively fixed, thereby forming an integrated upper cavity 1 structure; the connecting piece is also used to connect several lower segmented cavities 21 in the lower cavity 2 so that each lower segmented cavity 21 is relatively fixed, thereby forming an integrated lower cavity 2 structure.

[0038] On this basis, the connecting piece can compress the two adjacent upper segment chambers 11 or the two adjacent lower segment chambers 21 under its own connecting action, thereby preventing the leakage of materials.

[0039] It should be noted that the connecting piece is detachable and can have sufficient stability after installation to ensure the stability of the upper cavity 1 and the lower cavity 2; of course, after the connecting piece is removed, each upper segmented cavity 11 or lower segmented cavity 21 can be quickly disassembled because there is no external force to fix it, providing good conditions for cleaning and replacement.

[0040] In summary of the above embodiments, the present application uses a connector to fix several upper segmented cavities 11 to form an upper cavity 1. Similarly, a connector is used to fix several lower segmented cavities 21 to form a lower cavity 2. The upper cavity 1 and the lower cavity 2 cooperate to form a cavity for conveying, mixing, and extrusion. When cleaning is required, each segmented cavity can be removed. Each segmented cavity is shorter in length, and less space is required for soaking and cleaning, which makes cleaning more convenient and more thorough. In addition, if one or more of the segments are damaged by wear, corrosion, etc. and need to be replaced, it is only necessary to remove the corresponding damaged segmented cavity and install a new segmented cavity, which is then fixed by the connector. Disassembly and assembly are convenient and quick, and there is no need to replace the entire cavity, thereby reducing the cost of use.

[0041] Please refer to Figure 3 The connecting piece of the present application includes a long stud 9 and a nut matched with the long stud 9. The long stud 9 has threads at least at both ends thereof. The number of the long studs 9 is at least two, and the two long studs 9 are respectively used to fix the upper segmented cavity 11 and the lower segmented cavity 21.

[0042] Specifically, one long stud 9 is inserted into each upper segment cavity 11 in turn, and each upper segment cavity 11 is pressed and fixed to the long stud 9 by a nut; and another long stud 9 is inserted into each lower segment cavity 21 in turn, and each lower segment cavity 21 is pressed and fixed to the long stud 9 by a nut.

[0043] In the present embodiment, the pressing and fixing method of the lower segmented cavity 21 by the long stud 9 is the same as the pressing and fixing method of the upper segmented cavity 11, so the upper segmented cavity 11 will be taken as an example for explanation here. The long stud 9 can pass through each upper segmented cavity 11, and both ends of the long stud 9 extend out of the upper segmented cavity 11, so that nuts are tightened on the bolts at both ends of the long stud 9 to press and fix each upper segmented cavity 11.

[0044] In this embodiment, another fixing method is provided. Please refer to Figure 3 The end of the upper segmented cavity 11 at the outermost end of one side of the upper cavity 1 is provided with a threaded hole, that is, Figure 3 The upper segmented cavity 11 on the leftmost side of the upper cavity 1 is provided with through holes penetrating the upper segmented cavity 11 itself and corresponding to the positions of the threaded holes, and the long studs 9 are sequentially extended into the through holes until one end is threadedly connected with the threaded holes; at this time, one end of the long stud 9 has been fixed (with the threaded holes). Figure 3 The upper segmented cavity 11 on the left side is fixed), and a countersunk hole is provided at the end of the upper segmented cavity 11 at the outermost end of the other side of the upper cavity body 1, that is, Figure 3 In the upper segmented cavity 11 on the far right, the countersunk hole corresponds to the position of the through hole, and the other end of the long stud 9 is located in the countersunk hole and is threadedly connected with a nut, which is also located in the countersunk hole to press and fix each upper segmented cavity 11.

[0045] The way the lower segmented cavity 21 is fixed by the long stud 9 is the same as the way the upper segmented cavity 11 is fixed by the long stud 9, which will not be described in detail here. It should be noted that in order to achieve a better fixing effect, make each upper segmented cavity 11 evenly stressed, and avoid material leakage, multiple upper segmented cavities 11 can be fixed simultaneously by multiple long studs 9, which will not be described in detail here.

[0046] It should be noted that, for the above-mentioned connecting parts, including but not limited to the above-mentioned setting methods, connecting flanges or the like may also be provided at two adjacent upper segmented cavities 11, so as to detachably connect the two adjacent upper segmented cavities 11, which will not be described in detail here, and it is sufficient to ensure that each upper segmented cavity 11 can be detachably connected and has high stability. Similarly, the lower segmented cavity 21 is also applicable.

[0047] Please refer to Figure 4 In any two adjacent through holes corresponding to the same long stud 9, that is, the through holes in the two adjacent upper segmented cavities 11 or the through holes in the two adjacent lower segmented cavities 21, a hollow pin 13 coaxial with the through hole is provided in one of the through holes, and the hollow pin 13 is inserted in the other through hole, and the long stud 9 passes through one through hole, the hollow pin 13, and the other through hole in sequence.

[0048] During the assembly of the upper cavity 1, the two adjacent upper segmented cavities 11 can first be positioned using the hollow pin 13, that is, the hollow pin 13 is inserted into the two through holes at the same time to complete the pre-assembly, and then the long stud 9 passes through the through hole and is locked to complete the assembly.

[0049] In addition, please refer to Figure 2At least one upper segment cavity 11 is provided with a handle 8 on its side wall, and / or at least one lower segment cavity 21 is provided with a handle 8 on its side wall. The handle 8 is provided to facilitate opening the upper cavity 1 and the lower cavity 2 from this side, so as to facilitate separation of the two. There are no restrictions on the specific structure and location of the handle 8, and it is sufficient to ensure that it is easy to grasp.

[0050] Please refer to Figure 2 and Figure 3 A short stud 7 is provided on the end surface of the upper segmented cavity 11 away from the lower segmented cavity 21, and on the end surface of the lower segmented cavity 21 away from the upper segmented cavity 11. The short stud 7 has threads at least at both ends. The thread at one end of the short stud 7 is threadedly connected with the upper segmented cavity 11 or the lower segmented cavity 21, and the other end passes through the upper heating plate 3 or the lower heating plate 4, and the thread at the other end of the short stud 7 cooperates with the ball nut to fix the upper segmented cavity 11 and the lower segmented cavity 21 on the upper heating plate 3 and the lower heating plate 4 respectively. After the assembly is completed, Figure 1 shown.

[0051] In order to prevent the upper cavity 1 and the lower cavity 2 from being misaligned, a positioning pin 15 is provided on the end face of the upper segmented cavity 11 facing the lower segmented cavity 21. The positioning pin 15 cooperates with the positioning groove on the lower segmented cavity 21 to make the positions of the upper segmented cavity 11 correspond to those of the lower segmented cavity 21. On the basis of the accurate alignment of the upper segmented cavity 11 and the lower segmented cavity 21, the upper cavity 1 and the lower cavity 2 can naturally be accurately combined.

[0052] It should be pointed out that a screw groove 14 is provided on the facing end faces of the upper segmented cavity 11 and the lower segmented cavity 21, a screw is provided in the screw groove 14, the screw is located between the upper segmented cavity 11 and the lower segmented cavity 21, and a feed port 12 connected to the screw groove 14 is provided on the upper segmented cavity 11, so that the screw can mix and extrude the material in the screw groove 14 and discharge it out of the cavity.

[0053] In addition, please refer to Figure 2 Each upper segmented cavity 11 is provided with a feed port 12 to accommodate materials of different processing degrees. Each feed port 12 is sealed with a plug 5 at its periphery. Figure 1 A feed barrel 6 connected to the screw groove 14 is provided at the feed port 12, and the feed barrel 6 is convenient for adding materials. When only one of the feed ports 12 is needed, the plug barrels at the other feed ports 12 are plugged with plug covers to prevent leakage of materials.

[0054] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0055] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A segmented hot melt cavity, characterized in that: include: The upper cavity body comprises a plurality of upper segmented cavities arranged in sequence and in parallel, with the adjacent upper segmented cavities butting against each other end to end; The lower cavity body comprises a plurality of lower segmented cavities arranged in sequence and in parallel, wherein the lower segmented cavities correspond to the upper segmented cavities one by one and are pressed tightly against the upper segmented cavities; A connecting piece is used to connect several of the upper segmented cavities in the upper cavity body so that each of the upper segmented cavities is relatively fixed, and is used to connect several of the lower segmented cavities in the lower cavity body so that each of the lower segmented cavities is relatively fixed.

2. The segmented hot melt cavity according to claim 1 is characterized in that: The connecting piece comprises a long stud and a nut matched with the long stud, the long stud has threads at least at two ends thereof, and the number of the long studs is at least two; One of the long studs is sequentially inserted into each of the upper segmented cavities, and each of the upper segmented cavities is compressed and fixed to the long stud by the nut; Another of the long studs is sequentially inserted into each of the lower segment cavities, and each of the lower segment cavities is compressed and fixed on the long stud by the nut.

3. The segmented hot melt cavity according to claim 2 is characterized in that: A threaded hole is provided at the end of the upper segmented cavity at the outermost end of one side of the upper cavity body, and through holes that penetrate the upper segmented cavity itself and correspond to the position of the threaded hole are provided on the other upper segmented cavities in the upper cavity body except for the threaded hole, and the long studs are sequentially extended into the through holes until one end is threadedly connected with the threaded hole; A countersunk hole is provided at the end of the upper segmented cavity at the outermost end on the other side of the upper cavity body, and the countersunk hole corresponds to the position of the through hole. The other end of the long stud is located in the countersunk hole and is threadedly connected with the nut to press and fix each upper segmented cavity; The pressing and fixing method of the lower segment cavity by the long stud is the same as the pressing and fixing method of the upper segment cavity.

4. The segmented hot melt cavity according to claim 3 is characterized in that: In any two adjacent through holes corresponding to the same long stud, a hollow pin coaxial with the through hole is provided in one of the through holes, and the hollow pin is inserted into the other through hole, and the long stud passes through one through hole, the hollow pin, and the other through hole in sequence.

5. The segmented hot melt cavity according to any one of claims 1 to 4, characterized in that: A handle is provided on the side wall of at least one of the upper segmented cavities, and / or the handle is provided on the side wall of at least one of the lower segmented cavities.

6. The segmented hot melt cavity according to claim 5, characterized in that: A short stud is provided on the end surface of the upper segmented cavity away from the lower segmented cavity, and on the end surface of the lower segmented cavity away from the upper segmented cavity, and the short stud has threads at least at two ends thereof; The thread at one end of the short stud is threadedly connected to the upper segmented cavity or the lower segmented cavity, and the other end passes through the upper heating plate or the lower heating plate, and the thread at the other end of the short stud cooperates with the ball nut to fix the upper segmented cavity and the lower segmented cavity on the upper heating plate and the lower heating plate respectively.

7. The segmented hot melt cavity according to claim 5, characterized in that: A positioning pin is provided on the end surface of the upper segmented cavity facing the lower segmented cavity, and the positioning pin cooperates with the positioning groove on the lower segmented cavity to make the positions of the upper segmented cavity correspond to those of the lower segmented cavity.

8. The segmented hot melt cavity according to claim 5, characterized in that: A screw groove is provided on the end faces facing each other of the upper segmented cavity and the lower segmented cavity, a screw is provided in the screw groove, and the screw is located between the upper segmented cavity and the lower segmented cavity. A feed port connected to the screw groove is provided on the upper segmented cavity, so that the screw can mix and extrude the material in the screw groove and discharge it out of the cavity.

9. The segmented hot melt cavity according to claim 8, characterized in that: Each of the upper segmented cavities is provided with a feed port, and a barrel plug is provided for sealing the outer periphery of each feed port. A feed barrel connected with the screw groove is provided at the feed port.

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