Plastic part extrusion die and product thereof

Abstract

The plastic part extrusion die comprises a conveying pipe and an outer pipe connected with the conveying pipe, an inner supporting column is arranged in the outer pipe, one end of the inner supporting column is located in the conveying pipe and connected with the inner wall of the conveying pipe through a connecting plate, the outer wall of the inner supporting column is sleeved with a first die plate, and the outer wall of the first die plate is sleeved with a second die plate. The product comprises a plastic outer pipe and a plastic inner pipe arranged in the plastic outer pipe, a supporting framework is arranged between the plastic outer pipe and the plastic inner pipe, the supporting framework is arranged in a wave shape in the circumferential direction of the outer wall of the plastic inner pipe, and the supporting framework is connected with the plastic inner pipe. In the prior art, part of plastic pipes are not internally supported, the overall anti-extrusion capacity is weak, meanwhile, the plastic pipes with the inner supports are inconvenient to be subjected to one-time extrusion molding through an extrusion mold, the plastic pipes with the inner supports can be subjected to one-time molding through the extrusion mold, and meanwhile the internal anti-extrusion capacity of products produced through the mold is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould and its product technical field, especially a kind of plastic part extrusion mould and its product. BACKGROUND

[0002] Mold is used to make the tool of shaped article, this tool is made of various parts, different molds are made of different parts, it is mainly realized the processing of article shape by the change of the material physical state formed.

[0003] Plastic part extrusion mould is one of mould types, it is strong in plasticity, and production cost is low, it is the tool for shaping plastic product, when manufacturing plastic parts such as plastic column or plastic pipe, corresponding plastic extruder and plastic part extrusion mould are often used,

[0004] The plastic extruder for processing plastic pipe in prior art includes an extruder body for processing molten plastic, an extrusion die through which the molten plastic passes is connected to the discharge port of the extruder, the extrusion die is composed of an inner tube and an outer tube, and the plastic forms a soft plastic hollow tube after passing through the gap between the inner tube and the outer tube.

[0005] However, some plastic pipes have no internal support, and the overall extrusion resistance is weak, and the extrusion die cannot perform one-time extrusion molding on the plastic pipe with internal support. SUMMARY

[0006] The utility model discloses a plastic part extrusion mould and its product, can be formed to the plastic pipe with internal support once, and the internal extrusion resistance of the product produced using the mould is stronger.

[0007] The above technical purpose of the utility model is realized by the following technical scheme: a plastic part extrusion mould, comprising a conveying pipe and an outer pipe connected thereto, an internal support column is arranged inside the outer pipe, one end of the internal support column is located in the conveying pipe, and the internal support column is connected to the inner wall of the conveying pipe through a connecting plate, a template one is sleeved on the outer wall of the internal support column, a template two is sleeved on the outer wall of the template one, and a wave-shaped output channel is formed between the template one and the template two, and the template one and the template two are respectively connected to the connecting plate.

[0008] Preferably, the template one and the template two each consist of a plurality of groups of conical blocks, and adjacent two groups of conical blocks are connected through a spacing block.

[0009] Preferably, the template one and the template two are respectively connected to the connecting plate through connecting rods, one end of the connecting rod penetrates through the connecting plate, and a nut is screwed on the end of the connecting rod penetrating through the connecting plate.

[0010] As preferred, the inner support column is provided with support rollers on the side away from the conveying pipe by a support.

[0011] A product comprises a plastic outer tube and a plastic inner tube inside the plastic outer tube, a support framework is arranged between the plastic outer tube and the plastic inner tube, and the support framework is arranged in a wave shape around the circumference of the outer wall of the plastic inner tube.

[0012] As preferred, the inner wall of the plastic outer tube and the outer wall of the plastic inner tube are each provided with a slot along the length thereof, and the support framework is alternately provided with a plurality of groups of plug blocks that are plugged into the slots on both sides of the plastic outer tube and the plastic inner tube.

[0013] The utility model discloses the beneficial effect: through the outer wall of inner support column sets up template no. 1, template no. 1 outer wall sets up template no. 2, makes the output channel between template no. 1 and template no. 2, can be once extrusion forming with the plastic pipe of inner support, need not subsequent personnel separately adjusting the inner support piece of extruded plastic pipe, reduces the labor of personnel artificial certain amount, improves the production efficiency, compares with prior art simultaneously, the plastic pipe that extrudes passes through its inside wave -shaped support framework, improves certain anti -extrusion capacity, reduces certain external impact and causes the deformation of pipeline too big. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram for showing the outer tube outer part mechanism in an embodiment of the utility model;

[0015] Figure 2 It is the structural schematic diagram for showing the outer tube inner part mechanism in an embodiment of the utility model; Figure 1 It is the enlarged view of part A in the utility model;

[0016] Figure 3 It is the explosion view for showing the outer tube inner part mechanism in an embodiment of the utility model;

[0017] Figure 4 It is the structural schematic diagram for showing the outer tube inner part structure in an embodiment of the utility model; Figure 3 It is the enlarged view of part B in the utility model;

[0018] Figure 5 It is the structural schematic diagram for showing the outer tube inner part structure in an embodiment of the utility model;

[0019] Figure 6 It is the structural schematic diagram for showing the outer tube inner part structure in an embodiment of the utility model.

[0020] Fig. 1, conveying pipe; 2, outer tube; 3, inner support column; 4, connecting plate; 5, template no. 1; 6, template no. 2; 7, output channel; 8, spacer block; 9, connecting rod; 10, nut; 11, support; 12, support roller; 13, plastic outer tube; 14, plastic inner tube; 15, slot; 16, plug block; 17, support framework. DETAILED DESCRIPTION

[0021] The following description is only preferred embodiments of the present application, the protection scope is not only limited to the embodiments, any technical solutions falling within the idea of the present application should be within the protection scope of the present application, and it should be pointed out that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application should also be considered as the protection scope of the present application.

[0022] It should be noted that in this paper, such as first and second, such as "connecting plate one, connecting plate two" and other relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.

[0023] The orientation words mentioned in the present embodiment, such as "up, down, left, right" and the like are only used to cooperate with the drawings to enable those skilled in the art to understand the relationship between the features or parts.

[0024] In the present embodiment, unless otherwise specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specified, for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] For example, as shown in FIG. 1, the connecting plate one and the connecting plate two are connected by a connecting plate three, and the connecting plate three is connected to the connecting plate one and the connecting plate two by a connecting plate four. Figures 1 to 6As shown, a plastic part extrusion die and its product, including a delivery pipe 1 and an outer pipe 2 connected with the output port, the inner part of the outer pipe 2 is horizontally provided with an inner support column 3, the left end of the inner support column 3 extends into the delivery pipe 1, and the left end of the outer wall in the delivery pipe 1 is provided with a connecting plate 4 connected with the inner wall of the delivery pipe 1. In this embodiment, the connecting plate 4 is provided with four groups, which are sequentially arranged along the circumference of the outer wall of the inner support column 3. A die plate one 5 is sleeved on the outer wall of the left end of the inner support column 3 in the outer pipe 2. The outer wall of the die plate one 5 is sleeved with a die plate two 6. A wave-shaped output channel 7 is formed between the die plate one 5 and the die plate two 6 along the circumferential direction of the inner support column 3. The outer wall of the inner support column 3 and the die plate one 5 and the outer wall of the die plate two 6 and the inner wall of the outer pipe 2 each form an annular gap of different sizes. The purpose is to pass through the molten plastic. In this embodiment, the die plate one 5 and the die plate two 6 each consist of several groups of tapered blocks. The two adjacent groups of tapered blocks are connected by a T-shaped spacing block 8. A T-shaped guide groove (not marked in the drawing) is formed in the spacing block 8. The die plate one 5 and the die plate two 6 are respectively connected with the connecting plate 4 through connecting rods 9. In this embodiment, one end of the connecting rod 9 penetrates through the connecting plate 4. The end penetrating through is screwed with a nut 10. The purpose is to facilitate subsequent personnel adjustment and replacement.

[0026] On the side of the inner support column 3 away from the delivery pipe 1, a support roller 12 is arranged through an L-shaped support 11. In this embodiment, the support 11 is provided with four groups, which are equally distributed along the circumference of the inner support column 3. Each group of support rollers 12 is arranged on the support 11. The purpose is to support the inner wall of the formed plastic pipe moving out of the outer pipe 2, so as to avoid excessive collapse of the newly formed plastic pipe.

[0027] The product produced by the above structure, through the delivery pipe 1, the molten plastic is sent into and extruded into the outer pipe 2. Through the shielding of the inner support column 3 and the die plate one 5 and the die plate two 6, the molten plastic is respectively extruded from the annular gap between the die plate two 6 and the outer pipe 2 and the die plate one 5 and the inner support column 3, forming a plastic outer pipe 13 and a plastic inner pipe 14. At the same time, it is also extruded from the output channel 7, forming a support skeleton 17 between the plastic outer pipe 13 and the plastic inner pipe 14. When the molten plastic enters the output channel 7, part of it will enter the guide groove, so that T-shaped insertion blocks 16 will be formed at the highest end and the lowest end of the support skeleton 17 extruded from the output channel 7. At the same time, the inner wall of the plastic outer pipe 13 and the outer wall of the plastic inner pipe 14 each form an insertion groove 15 inserted and matched with the insertion block 16. The support skeleton 17 is arranged in a wave shape around the circumferential direction of the outer wall of the plastic inner pipe 14. After extrusion through the spacing block 8, the support skeleton 17 is inserted into the plastic outer pipe 13 and the plastic inner pipe 14 through the insertion blocks 16 on the highest end and the lowest end. The purpose is to play the role of internal support, improve the overall internal support strength of the pipe body, and facilitate subsequent personnel to replace and adjust the position of the components.

[0028] The above examples are illustrative of the present application and are not limiting. Any simple modifications of the present application are considered to be within the scope of the present application.

Claims

1. A plastic part extrusion die, comprising a delivery pipe (1) and an outer pipe (2) connected thereto, wherein an inner support column (3) is arranged inside the outer pipe (2), characterized in that one end of the inner support column (3) is located in the delivery pipe (1), and the inner support column (3) is connected to the inner wall of the delivery pipe (1) through a connecting plate (4); an outer wall of the inner support column (3) is sleeved with a die plate one (5), an outer wall of the die plate one (5) is sleeved with a die plate two (6), and a wave-shaped output channel (7) is formed between the die plate one (5) and the die plate two (6); the die plate one (5) and the die plate two (6) are each connected to the connecting plate (4).

2. A plastic part extrusion die according to claim 1, wherein, The die plate one (5) and the die plate two (6) each consist of a plurality of groups of tapered blocks, and adjacent two groups of tapered blocks are connected through a spacing block (8).

3. A plastic part extrusion die according to claim 2, wherein, The die plate one (5) and the die plate two (6) are each connected to the connecting plate (4) through a connecting rod (9), one end of the connecting rod (9) penetrates through the connecting plate (4), and a nut (10) is screwed at one end of the connecting rod (9) penetrating through the connecting plate (4).

4. The plastic part extrusion die of claim 1, wherein, The inner support column (3) is provided with a support roller (12) on the side away from the delivery pipe (1) through a support (11).

5. A product characterized by, It comprises a plastic outer pipe (13) and a plastic inner pipe (14) therein, a support framework (17) is arranged between the plastic outer pipe (13) and the plastic inner pipe (14), and the support framework (17) is arranged in a wave shape around the outer wall of the plastic inner pipe (14) in the circumferential direction.

6. A product according to claim 5, characterised in that The inner wall of the plastic outer pipe (13) and the outer wall of the plastic inner pipe (14) are each provided with a slot (15) along the length direction thereof, and the support framework (17) is alternately provided with a plurality of groups of plug blocks (16) which are plugged and matched with the slots (15) on both sides of the plastic outer pipe (13) and the plastic inner pipe (14).

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