Extrusion head connecting device convenient to disassemble and assemble

Abstract

The extrusion head connecting device comprises a bottom cover, an extrusion head, a front cover, a side cover and a top cover, the bottom of the extrusion head is detachably connected with the side, away from a plastic extruding machine, of the bottom cover, and a plurality of extrusion holes are formed in the extrusion head in the long edge direction of the extrusion head. One side, close to the plastic extruding machine, of the extruding head is propped against an extruding opening of the plastic extruding machine; the front cover is detachably connected with the top of the extrusion head; the side covers are respectively arranged on two end surfaces of the extrusion head and are respectively and fixedly connected with the bottom cover and the front cover; the top cover is arranged on the top of the front cover. The top cover, the front cover, the side cover and the bottom cover are arranged in a surrounding manner, so that the extrusion head can be firmly fixed, and the extrusion head can be more conveniently detached while being firmly fixed only through detachable connection between the extrusion head and the front cover and the extrusion head and between the extrusion head and the bottom cover.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion molds, and more specifically, to an extrusion head connecting device which is convenient for assembly and disassembly. Background Art

[0002] In plastic extrusion equipment, plastic extruders are usually called main machines, while the subsequent equipment plastic extrusion machines are called auxiliary machines. After more than 100 years of development, plastic extruders have evolved from the original single screw to twin screws, multiple screws, and even screwless machines. Plastic extruders (main machines) can be matched with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat wires, strapping tapes, extruded nets, plates (sheets), profiles, granulation, cable coating, etc. to form various plastic extrusion production lines and produce various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machines in the plastic processing industry, whether now or in the future.

[0003] If there is an extrusion blockage during the production process, production will be hindered. The most convenient way is to replace the blocked base head. However, in order to ensure sufficient sealing of the extrusion head, its fixing method is relatively complicated and difficult to remove. Utility Model Content

[0004] The utility model aims to provide an extrusion head connecting device which is convenient for disassembly and assembly, and can conveniently disassemble and replace the extrusion head.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: an extrusion head connecting device that is easy to disassemble and assemble, including a bottom cover, an extrusion head, a front cover, a side cover and a top cover.

[0006] The bottom cover is fixedly arranged on the extruder, and the bottom cover is arranged at the bottom position of the extrusion port of the extruder;

[0007] The bottom of the extrusion head is detachably connected to the side of the bottom cover away from the extruder, the extrusion head is provided with a plurality of extrusion holes along the long side direction of the extrusion head, and the side of the extrusion head close to the extruder is in contact with the extrusion port of the extruder;

[0008] The front cover is detachably connected to the top of the extrusion head;

[0009] A pair of side covers are respectively arranged at the two end surfaces of the extruder head, and the side covers are respectively fixedly connected to the bottom cover and the front cover;

[0010] The top cover is arranged on the top of the front cover.

[0011] The utility model is further configured as follows: the first part of the extrusion head has a trapezoidal cross section, the second part of the extrusion head has a rectangular cross section, and the extrusion hole completely penetrates the first part and the second part.

[0012] The utility model is further configured as follows: inclined surfaces are arranged on both sides of the first part close to the extrusion hole, and the two inclined surfaces are respectively in contact with the bottom cover and the front cover.

[0013] The utility model is further configured as follows: a positioning strip is arranged on one side of the bottom cover close to the extruder head, a transverse groove matching the positioning strip is arranged on the inclined surface abutting against the bottom cover, and a sealing gasket is arranged in the transverse groove.

[0014] The utility model is further configured as follows: a fixing strip is arranged on one side of the front cover close to the extruder head, a longitudinal groove matching the fixing strip is opened on the inclined surface abutting against the front cover, and a sealing gasket is arranged in the longitudinal groove.

[0015] The utility model is further configured as follows: a sealing groove is arranged on the first part, the sealing groove is an annular groove and the extrusion holes are arranged in the annular groove, a sealing gasket is embedded in the sealing groove, and when the extrusion head is fixed, the sealing gasket abuts against the extrusion port of the extruder.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. The extruder head can be firmly fixed by combining the top cover, front cover, side cover and bottom cover.

[0018] 2. By detachably connecting the extruder head to the front cover and the bottom cover, a stable fixation can be achieved while also making disassembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of a connecting device in an embodiment of the utility model;

[0020] Figure 2 is a cross-sectional view of a connecting device in an embodiment of the utility model;

[0021] Figure 3 It is an exploded view of an embodiment of the utility model.

[0022] In the figure:

[0023] 1. Bottom cover; 11. Positioning strip;

[0024] 2. Extrusion head; 21. Sealing groove; 22. First part; 23. Second part; 24. Inclined surface; 25. Horizontal groove; 26. Vertical groove;

[0025] 3. front cover; 31. fixing strip;

[0026] 4. Side cover;

[0027] 5. Top cover. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0029] It should be noted that if the terms "first", "second", etc. are involved in the specification and claims of the utility model and the above-mentioned drawings, they are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, if the terms "including" and "having" and any of their variations are involved, it is intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In addition, in the present invention, the terms "installation", "setting", "provided with", "connection", "connected", "socketing" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] The following is combined with Figure 1-3 The utility model is described in further detail.

[0033] Example

[0034] The utility model is based on the traditional plastic granule extruder to make improvements.

[0035] like Figure 1 , Figure 2 , Figure 3 As shown, an extrusion head connection device that is easy to disassemble and assemble includes a bottom cover 1, an extrusion head 2, a front cover 3, a side cover 4 and a top cover 5.

[0036] The bottom cover 1 is fixedly arranged on the extruder (not shown in the figure), and the bottom cover 1 is arranged at the bottom position of the extrusion port of the extruder.

[0037] like Figure 3 As shown, the bottom cover 1 is in an elongated strip structure, and a positioning strip 11 is provided on one side of the bottom cover 1 close to the extrusion head 2. The positioning strip 11 can more conveniently achieve a positioning effect when installing the extrusion head 2.

[0038] The bottom of the extrusion head 2 is detachably connected to the side of the bottom cover 1 away from the extruder. The extrusion head 2 is provided with a plurality of extrusion holes along the long side direction of the extrusion head 2. The side of the extrusion head 2 close to the extruder abuts against the extrusion port of the extruder.

[0039] The first portion 22 of the extrusion head 2 has a trapezoidal cross section, the second portion 23 of the extrusion head 2 has a rectangular cross section, and the extrusion hole completely penetrates the first portion 22 and the second portion 23 .

[0040] Inclined surfaces 24 are provided on both sides of the first portion 22 close to the extrusion hole, and the two inclined surfaces 24 abut against the bottom cover 1 and the front cover 3 respectively.

[0041] A transverse groove 25 matching the positioning strip 11 is provided on the inclined surface 24 where the extrusion head 2 abuts against the bottom cover 1 . A sealing gasket is provided in the transverse groove 25 . The provision of the sealing gasket can better prevent leakage of the extrusion pressure.

[0042] A longitudinal groove 26 matching with the fixing strip 31 is formed on the inclined surface 24 where the extrusion head 2 abuts against the front cover 3 , and a sealing gasket is arranged in the longitudinal groove 26 .

[0043] like Figure 2 As shown, when the bottom cover 1 is fixed, the setting of the positioning strip 11 can limit the longitudinal movement space of the extruder head 2, and when the front cover 3 is installed, the fixing strip 31 can limit the lateral movement space of the extruder head 2. Finally, the installation of the side plate can limit the lateral movement of the extruder head 2, thereby forming a good fixing condition.

[0044] In order to ensure the sealing performance, sealing gaskets are arranged between each plate.

[0045] In order to ensure the fixing effect, the side plate at least covers the first portion 22 of the extrusion head 2 after installation.

[0046] In order to ensure a tight connection between the extrusion head 2 and the extrusion port of the extruder, a sealing groove 21 is provided on the first part 22. The sealing groove 21 is an annular groove and the extrusion holes are all arranged in the annular groove. A sealing gasket is embedded in the sealing groove 21. When the extrusion head 2 is fixed, the sealing gasket abuts against the extrusion port of the extruder.

[0047] like Figure 1 As shown, a plurality of extrusion holes are arranged in a linear array.

[0048] The front cover 3 is detachably connected to the top of the extrusion head 2 .

[0049] A pair of side covers 4 are respectively disposed at the two end surfaces of the extrusion head 2 , and the side covers 4 are fixedly connected to the bottom cover 1 and the front cover 3 , respectively.

[0050] A fixing strip 31 is provided on one side of the front cover 3 close to the extrusion head 2 .

[0051] The top cover 5 is arranged on the top of the front cover 3 , and a plurality of fixing bolts are arranged on the top cover 5 , which respectively fix the top cover 5 to the side covers 4 on both sides.

[0052] like Figure 1 As shown, the front cover 3 is provided with two bolts near the extrusion direction and is directly connected to the extruder body. When the bolts provided on the front cover 3 are tightened inwardly, the extrusion head 2 can be directly squeezed. Due to the limitation of the movement mode, the extrusion head 2 can be directly thrust toward the extrusion port of the extruder, thereby achieving the squeezing effect.

[0053] like Figure 1 As shown, in order to ensure that the extrusion head 2 can be disassembled more conveniently, embedded handles are provided at both end surfaces of the second portion 23 of the extrusion head 2.

[0054] like Figure 1 Two fixing bolts are provided on the side panel as shown, one is connected to the bottom cover 1, and the other is connected to the front cover 3, in order to prevent the sealing effect from being unable to be achieved due to the loosening of the fixing bolts of the front cover 3 during use, and when disassembling, only the fixing bolts on the side panel used to fix the front cover 3 are needed, and the front cover 3 and the extrusion head 2 can be pulled out through the embedded handle, without the need to disassemble the entire extrusion assembly.

[0055] In this solution, only the extrusion head 2 and its mounting components are included, and no further description is given of the prior art extruder.

[0056] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0057] In addition, the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the utility model, and these solutions also belong to the disclosure scope of the utility model and fall within the protection scope of the utility model. Those skilled in the art should understand that the utility model specification and its drawings are illustrative and do not constitute a limitation of the claims. The protection scope of the utility model is defined by the claims and their equivalents.

Claims

1. An extrusion head connection device that is easy to disassemble and assemble, characterized in that: include: A bottom cover (1) is fixedly mounted on the extruder, wherein the bottom cover (1) is arranged at the bottom of the extrusion port of the extruder; An extrusion head (2), the bottom of which is detachably connected to a side of the bottom cover (1) away from the extruder, the extrusion head (2) being provided with a plurality of extrusion holes along the long side of the extrusion head (2), and the side of the extrusion head (2) close to the extruder being in contact with the extrusion port of the extruder; A front cover (3) detachably connected to the top of the extrusion head (2); Side covers (4), a pair of the side covers (4) are respectively arranged at the two end surfaces of the extrusion head (2), and the side covers (4) are respectively fixedly connected to the bottom cover (1) and the front cover (3); The top cover (5) is arranged on the top of the front cover (3).

2. The extrusion head connection device that is convenient for assembly and disassembly according to claim 1, characterized in that: The first part (22) of the extrusion head (2) has a trapezoidal cross section, the second part (23) of the extrusion head (2) has a rectangular cross section, and the extrusion hole completely penetrates the first part (22) and the second part (23).

3. The extrusion head connection device that is convenient for assembly and disassembly according to claim 2, characterized in that: The first part (22) is provided with inclined surfaces (24) on both sides close to the extrusion hole, and the two inclined surfaces (24) are respectively in contact with the bottom cover (1) and the front cover (3).

4. The extrusion head connection device that is convenient for assembly and disassembly according to claim 3, characterized in that: A positioning strip (11) is provided on one side of the bottom cover (1) close to the extruder head (2), a transverse groove (25) matching the positioning strip (11) is provided on the inclined surface (24) abutting against the bottom cover (1), and a sealing gasket is provided in the transverse groove (25).

5. The extrusion head connection device that is convenient for assembly and disassembly according to claim 3, characterized in that: A fixing strip (31) is arranged on one side of the front cover (3) close to the extrusion head (2), a longitudinal groove (26) matching the fixing strip (31) is provided on the inclined surface (24) abutting against the front cover (3), and a sealing gasket is arranged in the longitudinal groove (26).

6. The extrusion head connection device that is convenient for assembly and disassembly according to claim 2, characterized in that: The first part (22) is provided with a sealing groove (21), the sealing groove (21) is an annular groove and the extrusion holes are all arranged in the annular groove, a sealing gasket is embedded in the sealing groove (21), and when the extrusion head (2) is fixed, the sealing gasket abuts against the extrusion port of the extruder.

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