A PE water supply pipe extrusion die

Abstract

The utility model relates to the technical field of extrusion dies, and discloses a PE water supply pipe extrusion die, including a head body, a groove is provided at the rear end center of the head body, a filter plate is clamped in the groove, the head body is connected to a connecting seat by bolts, four plug holes are provided at the rear end outer ring of the head body, four plug posts are fixedly connected to the front end outer ring of the connecting seat, and the plug posts are plugged into the plug holes; two push plates are relatively fixedly connected to the rear side wall of the head body, and two convex plates are relatively fixedly connected to the front side of the connecting seat, a threaded hole one is provided on the convex plate, and a jack bolt is connected to the inner thread of the threaded hole one. The plug posts and the sockets of the utility model can support the main head body, so that personnel do not need additional auxiliary support or lifting equipment to support the head body, thereby making it more convenient to maintain the filter plate, and during the later installation, the sockets and the plug posts can locate the positions of the head body and the connecting seat, thereby facilitating personnel to quickly align the connection and facilitate installation.

Description

Technical Field

[0001] The utility model belongs to the technical field of extrusion molds, in particular to an extrusion die for a PE water supply pipe. Background Art

[0002] Plastic pipes in my country are developing rapidly and their quality is constantly improving. Among them, polyethylene PE pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas pipes, electrical and telecommunications protective casings, industrial pipes, agricultural pipes, etc. due to their unique advantages. They are mainly used in urban water supply, urban gas supply and farmland irrigation.

[0003] In the production of existing PE water supply pipes, molten plastic is shaped and extruded through an extrusion die. The existing extrusion die is mainly composed of a head body, a diverter, a core rod, a die, and a filter plate. The function of the filter plate is to filter impurities in the molten plastic. The filter plate needs to be cleaned after the equipment has been used for a certain period of time, so the extrusion die needs to be disassembled. Since the extrusion die is heavy, the personnel need to hoist the equipment or add an external support structure to support the extrusion die during maintenance, which makes the filter plate cleaning operation very troublesome and inconvenient to clean and maintain. In order to solve the above-mentioned problems, a PE water supply pipe extrusion die is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a PE water supply pipe extrusion die in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the utility model is as follows: a PE water supply pipe extrusion die, comprising a head body, a groove is provided at the rear end center of the head body, a filter plate is clamped in the groove, the head body is connected to a connecting seat by bolts, four plug holes are provided at the rear end outer ring of the head body, four plug posts are fixedly connected to the front end outer ring of the connecting seat, and the plug posts are plugged into the plug holes;

[0006] The rear side wall of the machine head body is relatively fixedly connected with two push plates, and the front side of the connecting seat is relatively fixedly connected with two convex plates. The convex plate is provided with a threaded hole 1, and the internal thread of the threaded hole 1 is connected with a jacking bolt.

[0007] In a preferred embodiment, a flow channel hole is opened inside the connecting seat, and the rear end of the connecting seat is connected to the injection molding machine.

[0008] In a preferred embodiment, a strip-shaped limiting hole opened on the side wall of the head body is provided on the side wall of one of the insertion holes, and a second threaded hole is opened on one side of the insertion column. The internal thread of the second threaded hole is connected to a limiting bolt, and the limiting bolt passes through the strip-shaped limiting hole.

[0009] In a preferred embodiment, a diverter bracket, a connecting sleeve and a die are inserted into the inner cavity of the machine head body from the inside, a pressure ring is connected to the front end of the machine head body by bolts, a diverter is fixedly connected to the diverter bracket, and a core rod is fixedly connected to the diverter.

[0010] In a preferred embodiment, a circle of threaded connection is provided on the front inner wall of the machine head body with a plurality of adjusting bolts.

[0011] In a preferred embodiment, a flange is fixedly connected to the front outer wall of the die, and the die is connected to the sizing sleeve via the flange.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. In the utility model, when the filter plate is clogged, the personnel can disassemble and clean the filter plate by disassembling the connecting seat and the head body, and then moving the entire head body outward, and then separating the head body 1 from the connecting seat. At this time, the plug posts and the sockets can support the main head body, so that the personnel do not need additional auxiliary support or lifting equipment to support the head body, which makes the maintenance of the filter plate more convenient. In the later installation, the sockets and the posts can locate the positions of the head body and the connecting seat, so that the personnel can quickly align the connection and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 3 The utility model is a schematic diagram showing the three-dimensional structure of the plug column.

[0017] Markings in the figure: 1-head body, 2-embedded groove, 3-filter plate, 4-connecting seat, 5-jack, 6-column, 7-push plate, 8-convex plate, 9-threaded hole one, 10-pushing bolt, 11-flow channel hole, 12-strip limiting hole, 13-threaded hole two, 14-limiting bolt, 15-diverter bracket, 16-connecting sleeve, 17-die, 18-pressure ring, 19-diverter, 20-core rod, 21-adjusting bolt, 22-flange. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The following will be combined Figure 1-Figure 3 A PE water supply pipe extrusion die according to an embodiment of the utility model is described in detail.

[0020] Example:

[0021] The utility model embodiment provides a PE water supply pipe extrusion die, referring to Figure 1 and Figure 2 As shown, it includes a head body 1, the inner cavity of the head body 1 is inserted into place with a diverter bracket 15, a connecting sleeve 16 and a die 17, the front end of the head body 1 is connected with a pressure ring 18 by bolts, the diverter bracket 15 is fixedly connected with a diverter 19, and the diverter 19 is fixedly connected with a core rod 20. This structure of the head body 1, the diverter bracket 15, the connecting sleeve 16, the die 17 and the pressure ring 18 constitute the existing PE water supply pipe extrusion mold, wherein the head body 1 is equivalent to the mold frame, which is used to support other accessories. The diverter 19 can divert the molten plastic into a thin ring and enter the molding area. The diverter bracket 15 mainly supports the diverter 19 and the core rod 20, and at the same time strengthens the shear mixing of the plastic melt. The function of the pressure ring 18 is to press the diverter bracket 15, the connecting sleeve 16 and the die 17 tightly in the head body 1.

[0022] refer to Figure 1 As shown, a circle of threads on the inner wall of the front side of the head body 1 is connected with a plurality of adjusting bolts 21, and the adjusting bolts 21 are used to adjust and control the annular gap and coaxiality of the die and the core rod in the molding area to ensure uniform wall thickness of the extruded plastic part.

[0023] refer to Figure 1 As shown, a flange 22 is fixedly connected to the front outer wall of the die 17 , and the die 17 is connected to the sizing sleeve via the flange 22 . This structure utilizes the flange 22 to conveniently fix the sizing sleeve on the die 17 .

[0024] refer to Figure 1 and Figure 2 As shown, the machine head body 1 is connected to the connecting seat 4 by bolts, and a flow channel hole 11 is opened inside the connecting seat 4. The rear end of the connecting seat 4 is connected to the injection molding machine. This structure uses the connecting seat 4 to serve as a transition connection between the machine head body 1 and the injection molding machine, and the flow to the hole 11 facilitates the flow of molten plastic into the machine head body 1.

[0025] refer to Figure 1 and Figure 2 As shown, a groove 2 is provided at the rear end center of the head body 1, and a filter plate 3 is clamped in the groove 2. In this structure, the filter plate is a porous plate, and the filter plate 4 is used to filter impurities in the molten plastic.

[0026] refer to Figure 1 and Figure 2 As shown, the rear end outer ring of the head body 1 is provided with four sockets 5, and the front end outer ring of the connecting seat 4 is fixedly connected with four plug posts 6, and the plug posts 6 are plugged into the sockets 5. In this structure, when the filter plate 4 is blocked, the personnel can disassemble and clean the filter plate 4. At this time, the personnel can disassemble the connecting seat 4 and the head body 1, and then move the entire head body 1 outward, and then separate the head body 1 from the connecting seat 4. At this time, the plug posts 6 and the sockets 5 can support the main head body 1, so that the personnel do not need additional auxiliary support or lifting equipment to support the head body 1, which makes it more convenient to maintain the filter plate 4. During the later installation, the sockets 5 and the plug posts 6 locate the positions of the head body 1 and the connecting seat 4, so as to facilitate the personnel to quickly align the connection and facilitate installation.

[0027] refer to Figure 1 As shown, two push plates 7 are relatively fixedly connected to the rear side wall of the head body 1, and two convex plates 8 are relatively fixedly connected to the front side of the connecting seat 4. A threaded hole 9 is opened on the convex plate 8, and a pushing bolt 10 is threadedly connected to the threaded hole 9. When removing the connecting bolts between the head body 1 and the connecting seat 4, the personnel first screws the pushing bolts 10 into the threaded hole 9 of the convex plate 8, and then use the pushing bolts 10 to push the push plates 7, so that it is convenient for the personnel to push the head body 1 outward, thereby facilitating the separation of the head body 1 and the connecting seat 4.

[0028] refer to Figure 1 and Figure 3 As shown, a strip-shaped limit hole 12 is provided on the side wall of one of the insertion holes 5 and is opened on the side wall of the machine head body 1, and a threaded hole 13 is provided on one side of the insertion column 6. The threaded hole 13 is internally threadedly connected with a limit bolt 14, and the limit bolt 14 passes through the strip-shaped limit hole 12. This structure utilizes the limit bolt 14 to move in the strip-shaped limit hole 12, thereby limiting the maximum outward movement position of the machine head body 1, and at the same time preventing the insertion column 6 from pushing the insertion hole 5 and causing the machine head body 1 to fall.

[0029] It should be noted that the extrusion mold disclosed in the above embodiment is applied to the production of PE water supply pipes and belongs to the extrusion mold of PE water supply pipes.

[0030] The implementation principle of a PE water supply pipe extrusion die in an embodiment of the present application is as follows: during use, when the filter plate 4 is blocked, when the personnel disassemble and clean the filter plate 4, the personnel first remove the connecting bolts between the connecting seat 4 and the head body 1, and then screw the pushing bolts 10 into the threaded holes 9 of the convex plate 8, and then use the pushing bolts 10 to push the push plate 7, so that it is convenient for the personnel to push the head body 1 to move outward, thereby facilitating the separation of the head body 1 and the connecting seat 4. During the separation process, the column 6 slides in the socket 5. When the limiting bolt 14 on the column 6 moves to the rightmost position, the head body 1 is separated from the connecting seat 4 in place. At this time, the column 6 and the socket 5 can support the main head body 1, so that the personnel do not need additional auxiliary support or lifting equipment to support the head body 1, and then the personnel can clean and maintain the filter plate 4.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A PE water supply pipe extrusion die, comprising a die head body (1), characterized in that: The rear end center of the head body (1) is provided with an embedding groove (2), a filter plate (3) is clamped in the embedding groove (2), the head body (1) is connected to a connecting seat (4) by bolts, the rear end outer ring of the head body (1) is provided with four insertion holes (5), the front end outer ring of the connecting seat (4) is fixedly connected with four plug posts (6), and the plug posts (6) are plugged into the insertion holes (5); The rear side wall of the machine head body (1) is relatively fixedly connected with two push plates (7), and the front side of the connecting seat (4) is relatively fixedly connected with two convex plates (8), and the convex plate (8) is provided with a threaded hole (9), and the threaded hole (9) is internally threadedly connected with a push bolt (10).

2. A PE water supply pipe extrusion die as claimed in claim 1, characterized in that: A flow channel hole (11) is provided inside the connecting seat (4), and the rear end of the connecting seat (4) is connected to an injection molding machine.

3. A PE water supply pipe extrusion die as claimed in claim 1, characterized in that: A strip-shaped limiting hole (12) is provided on the side wall of one of the insertion holes (5) and is opened on the side wall of the machine head body (1); a second threaded hole (13) is opened on one side of the insertion column (6); a limiting bolt (14) is connected to the inner thread of the second threaded hole (13); and the limiting bolt (14) passes through the strip-shaped limiting hole (12).

4. A PE water supply pipe extrusion die as claimed in claim 1, characterized in that: The inner cavity of the machine head body (1) is inserted with a diverter bracket (15), a connecting sleeve (16) and a die (17) from the inside, the front end of the machine head body (1) is connected with a pressure ring (18) by bolts, the diverter bracket (15) is fixedly connected with a diverter (19), and the diverter (19) is fixedly connected with a core rod (20).

5. A PE water supply pipe extrusion die as claimed in claim 1, characterized in that: A plurality of adjusting bolts (21) are threadedly connected to the inner wall of the front side of the machine head body (1).

6. A PE water supply pipe extrusion die as claimed in claim 4, characterized in that: A flange (22) is fixedly connected to the front outer wall of the die (17), and the die (17) is connected to a sizing sleeve via the flange (22).

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