Wood-plastic extrusion die with guide ribs

Abstract

This utility model relates to the field of wood-plastic processing molds, and discloses a wood-plastic extrusion mold with guide ribs, including a mold body. An installation assembly is provided on the rear side of the mold body. The installation assembly includes a fixing plate and an installation plate. The mold body is fixedly mounted on the front surface of the installation plate. Four sets of insert rods are fixedly connected in a ring array on the rear surface of the installation plate. Each of the four sets of insert rods has a slot near its inner side. The front surface of the fixing plate has a ring array with insertion holes corresponding to the four sets of insert rods, through which the insert rods pass and are inserted into the inner wall of the insertion holes. In this utility model, the linkage mechanism of the lever, guide ring, and locking block, combined with the automatic reset function of the torsion spring, achieves rapid locking and releasing of the mold. Compared with traditional bolt flange connections, the mold changeover time is shortened from several hours to several minutes, significantly reducing unplanned downtime on the production line and significantly improving production efficiency and mold changeover efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wood-plastic processing molds, and in particular to a wood-plastic extrusion mold with guide ribs. Background Technology

[0002] In the extrusion molding process of wood-plastic composites, the extrusion die is the key equipment that determines the dimensional accuracy, surface quality and mechanical properties of the product. Because wood-plastic materials contain a large amount of wood powder, their melt has the characteristics of high viscosity, high friction and easy wear, which means that the die cavity, flow channel and key components such as guide ribs need to be cleaned, maintained and replaced regularly.

[0003] Currently, wood-plastic extrusion molds with guide ribs are usually connected and fixed to the extruder main unit by flanges and multiple bolts. Therefore, when installing and disassembling the mold, dozens of bolts need to be tightened or loosened one by one, which is cumbersome, time-consuming, labor-intensive, and seriously affects production efficiency and mold changing efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a wood-plastic extrusion mold with guide ribs, which aims to solve the problem in the prior art that "the mold is connected and fixed to the extruder host through flanges and multiple bolts, which is cumbersome, time-consuming and inefficient when installing and disassembling the mold".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wood-plastic extrusion mold with guide ribs, comprising a mold body, an installation component provided on the rear side of the mold body, the installation component comprising a fixing plate and an installation plate, the mold body being fixedly installed on the front surface of the installation plate, four sets of insert rods being fixedly connected in a ring array on the rear surface of the installation plate, each of the four sets of insert rods having a slot near its inner side, the front surface of the fixing plate having a ring array having insertion holes corresponding to the four sets of insert rods, the insert rods being inserted through and into the inner wall of the insertion holes, the inner wall of the slots being provided with a locking block, the locking block being locked into the inner wall of the slots by a limiting component.

[0006] As a further description of the above technical solution:

[0007] The limiting component includes a guide ring, the locking block is fixedly connected to the outer wall of the guide ring, the inside of the fixed disk has a circular groove, the guide ring is rotatably connected to the inner wall of the circular groove, and a lever is fixedly connected to the side of the outer wall of the guide ring near the locking block. The lever is fixed to the outer wall of the fixed disk by a locking component.

[0008] As a further description of the above technical solution:

[0009] The locking assembly includes a locking screw and screw holes. Two sets of screw holes are provided, each opened on the outer wall of the fixed plate. The locking screw is threaded onto the inner wall of the screw holes.

[0010] As a further description of the above technical solution:

[0011] Both the card slot and the card block are designed with arc-shaped surfaces, and the outer wall of the arc-shaped surface of the card block is tightly fitted to the inner wall of the arc-shaped surface of the card slot.

[0012] As a further description of the above technical solution:

[0013] The guide ring and the fixed plate are elastically connected by a torsion spring, and the inner wall of the fixed plate is provided with a sliding groove three near the outer ring of the circular groove.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the fixed plate is provided with a second slide groove near the outer side of the third slide groove, and the locking block passes through the third slide groove and is slidably connected to the inner wall of the second slide groove.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the fixed plate is provided with a sliding groove, and the lever is slidably connected to the inner wall of the sliding groove.

[0018] As a further description of the above technical solution:

[0019] The lever is T-shaped and its outer wall is arc-shaped, fitting against the outer wall of the fixed plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the linkage mechanism of the push block, guide ring and locking block, combined with the automatic reset function of the torsion spring, realizes the rapid locking and releasing of the mold. Compared with the traditional bolt flange connection, the mold replacement time is shortened from several hours to several minutes, which greatly reduces the unplanned downtime of the production line and significantly improves production efficiency and mold replacement efficiency.

[0022] 2. In this utility model, the locking screw, in conjunction with the corresponding screw hole, quickly limits the position of the lever, further increasing the stability of the installation of the mounting plate and the mold body, preventing shaking, thereby further increasing stability and improving product quality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional structural breakdown diagram of the mold body, mounting plate, and fixing plate in this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the fixed disk in this utility model;

[0026] Figure 4 This is a cross-sectional view and disassembly diagram of the three-dimensional structure of the fixed disk in this utility model.

[0027] Legend:

[0028] 1. Mold body; 2. Mounting components; 3. Locking components; 21. Fixing plate; 22. Mounting plate; 23. Insert rod; 24. Pulling block; 25. Slot; 26. Torsion spring; 27. Locking block; 28. Slide 1; 29. ​​Slide 2; 210. Slide 3; 211. Circular groove; 212. Insertion hole; 213. Guide ring; 31. Locking screw; 32. Screw hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a wood-plastic extrusion mold with guide ribs, comprising a mold body 1. The mold body 1 has a guide rib structure inside to ensure uniform density of the extruded profile. A mounting assembly 2 is provided on the rear side of the mold body 1 for quick docking and locking of the mold with the extruder. The mounting assembly 2 includes a fixing plate 21 connected to the extruder and a mounting plate 22 for supporting the mold body 1. The mold body 1 is fixedly mounted on the front surface of the mounting plate 22. Four sets of mounting plates 21 for inserting into the fixing plate 21 are fixedly connected in a circular array on the rear surface of the mounting plate 22. The four sets of insert rods 23 are provided with slots 25 for locking near their inner sides. The front surface of the fixing plate 21 has a ring array of holes 212 corresponding to the four sets of insert rods 23. The insert rods 23 pass through and are inserted into the inner wall of the holes 212. The inner wall of the slots 25 is provided with blocks 27 for locking into the slots 25 to achieve radial locking. The blocks 27 are locked into the inner wall of the slots 25 by limiting components. Both the slots 25 and the blocks 27 are arc-shaped surfaces, and the outer wall of the arc-shaped surface of the blocks 27 is tightly fitted to the inner wall of the arc-shaped surface of the slots 25.

[0031] Reference Figure 2 , Figure 3 and Figure 4The limiting component includes a guide ring 213 that moves the locking block 27. The locking block 27 is fixedly connected to the outer wall of the guide ring 213. The interior of the fixed plate 21 has a circular groove 211 for providing rotation space for the torsion spring 26 and the guide ring 213. The guide ring 213 is rotatably connected to the inner wall of the circular groove 211. A lever 24 that drives the guide ring 213 to rotate is fixedly connected to the side of the outer wall of the guide ring 213 near the locking block 27. The lever 24 is fixed to the outer wall of the fixed plate 21 by the locking component 3. The guide ring 213 and the fixed plate 21 are elastically connected by the torsion spring 26. The torsion spring 26 allows the guide ring 213 and the locking block 27 to be quickly reset and the insertion rod 23 to be fixed. The inner wall of the fixed plate 21 is provided with a groove 210 near the outer ring of the circular groove 211 to provide space for the locking block 27 to slide. The inner wall of the fixed plate 21 is provided with a groove 29 near the outer side of the groove 210 to provide space for the locking block 27 to slide. The locking block 27 passes through the groove 210 and is slidably connected to the inner wall of the groove 29. The outer wall of the fixed plate 21 is provided with a groove 28 to provide space for the toggle block 24 to slide. The toggle block 24 passes through and is slidably connected to the inner wall of the groove 28. The toggle block 24 is T-shaped and its outer wall is arc-shaped and fits against the outer wall of the fixed plate 21. The arc shape fits against the outer wall of the fixed plate 21 to increase stability. The T-shape can easily drive the guide ring 213 to rotate.

[0032] Reference Figure 1 , Figure 2 and Figure 4 The locking assembly 3 includes a locking screw 31 and a screw hole 32. There are two sets of screw holes 32, which are respectively opened on the outer wall of the fixed plate 21. The locking screw 31 is threaded on the inner wall of the screw hole 32. By setting the two sets of screw holes 32 and the locking screw 31, the guide ring 213 at different positions can be limited.

[0033] Working principle: During use and installation, by moving the lever 24, the guide ring 213 is driven to rotate in the circular groove 211, while the torsion spring 26 is compressed. This causes the locking block 27, which is fixedly connected to the outer wall of the guide ring 213, to rotate as well. At this time, the four sets of insertion rods 23 at the rear of the mounting plate 22 are aligned with the corresponding insertion holes 212 on the fixed plate 21 and inserted to complete the initial positioning and centering. Subsequently, the reverse force of the compressed torsion spring 26 drives the guide ring 213 and the locking block 27 to reset, so that the locking block 27 is screwed from the side area of ​​the insertion hole 212 into the slot 25 on the insertion rod 23. The radial locking force generated by the arc-shaped mating surface of the slot 25 and the locking block 27 tightly holds the insertion rod 23, so that the mounting plate 22 and the mold body 1 can be installed quickly. When disassembling, the lever 24 is moved to move the locking block 27 to remove it quickly.

[0034] Once installed, the locking screw 31 can be rotated and threaded into the corresponding screw hole 32 to fix the lever 24, preventing it from rotating and increasing the stability of the installation. This completes the quick and stable installation of the mold body 1 and the extruder.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ribbed wood plastic extrusion die comprising a die body (1) characterized in that: The mold body (1) is provided with an installation component (2) on its rear side. The installation component (2) includes a fixing plate (21) and an installation plate (22). The mold body (1) is fixedly installed on the front surface of the installation plate (22). The rear surface of the installation plate (22) is fixedly connected with four sets of insert rods (23) in a ring array. Each of the four sets of insert rods (23) has a slot (25) near its inner side. The front surface of the fixing plate (21) is provided with a ring array of insertion holes (212) corresponding to the four sets of insert rods (23). The insert rods (23) pass through and are inserted into the inner wall of the insertion holes (212). The inner wall of the slot (25) is provided with a locking block (27). The locking block (27) is locked into the inner wall of the slot (25) by a limiting component.

2. The wood-plastic extrusion die with guide ribs according to claim 1, characterized in that: The limiting component includes a guide ring (213), the locking block (27) is fixedly connected to the outer wall of the guide ring (213), the fixed disk (21) has a circular groove (211) inside, the guide ring (213) is rotatably connected to the inner wall of the circular groove (211), and a lever (24) is fixedly connected to the side of the outer wall of the guide ring (213) near the locking block (27). The lever (24) is fixed to the outer wall of the fixed disk (21) by a locking component (3).

3. The wood-plastic extrusion die with guide ribs according to claim 2, characterized in that: The locking assembly (3) includes a locking screw (31) and a screw hole (32). The screw hole (32) is provided in two sets, which are respectively opened on the outer wall of the fixed plate (21). The locking screw (31) is threadedly installed on the inner wall of the screw hole (32).

4. The wood-plastic extrusion die with guide ribs according to claim 1, characterized in that: Both the card slot (25) and the card block (27) are designed with arc-shaped surfaces, and the outer wall of the arc-shaped surface of the card block (27) is tightly attached to the inner wall of the arc-shaped surface of the card slot (25).

5. The wood-plastic extrusion die with guide ribs according to claim 2, characterized in that: The guide ring (213) is elastically connected to the fixed disk (21) by a torsion spring (26), and the inner wall of the fixed disk (21) is provided with a sliding groove three (210) near the outer ring of the circular groove (211).

6. The wood-plastic extrusion die with guide ribs according to claim 5, characterized in that: The inner wall of the fixed plate (21) is provided with a slide groove two (29) near the outer side of the slide groove three (210), and the locking block (27) passes through the slide groove three (210) and is slidably connected to the inner wall of the slide groove two (29).

7. The wood-plastic extrusion die with guide ribs according to claim 6, characterized in that: The outer wall of the fixed plate (21) is provided with a sliding groove (28), and the pusher block (24) passes through and is slidably connected to the inner wall of the sliding groove (28).

8. The wood-plastic extrusion die with guide ribs according to claim 7, characterized in that: The pusher block (24) is T-shaped and its outer wall is arc-shaped and fits the outer wall of the fixed plate (21).

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