CN209888113U

CN209888113U - Small-caliber multi-cavity plastic extrusion die with cooling and shaping functions

Info

Publication number: CN209888113U
Application number: CN201920710834.XU
Authority: CN
Inventors: 柯友军; 何浩; 梅平国
Original assignee: Huangshi Hongda Plastic Mould Co Ltd
Current assignee: Huangshi Hongda Plastic Mould Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-01-03
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses a small-bore multicavity plastics extrusion tooling with cooling design function relates to the mould field, has higher temperature to the back of extruding of current section bar, and is also softer, sinks easily, and the problem of the deformation of contracting in now proposes following scheme, and it includes that mounting panel and fixed set up at least one mould body on the mounting panel, the mould body includes the lower mould, goes up the mould, and the rear end of lower mould, last mould is articulated, the opposite side of lower mould, last mould all is equipped with the section bar groove, and two section bar grooves constitute the section bar chamber. The utility model discloses a use inlet tube or the external current water pump of outlet pipe, can make the cooling water course in lead to water to cool down hot section bar, and use through the external current air pump of breathing pipe, can make the air duct to the section bar chamber vacuum suction, thereby make the outer wall of the concrete inner wall adsorption profile of mould, and then can prevent that the section bar from subsiding, the internal contraction.

Description

Small-caliber multi-cavity plastic extrusion die with cooling and shaping functions

Technical Field

The utility model relates to a mould field especially relates to a small-bore multicavity plastics extrusion tooling with cooling design function.

Background

Extrusion molding is a process in which a plastic material is heated to a viscous flow state and passes through a die of an extruder under pressure to form a continuous body with a cross section similar to the shape of the die. The small-caliber multi-cavity plastic extrusion die with the cooling and shaping functions is needed to solve the problems due to the easy collapse and the inward shrinkage deformation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of higher temperature, softness, easy collapse and deformation caused by internal shrinkage after the extrusion of the existing section bar, and providing a small-caliber multi-cavity plastic extrusion die with a cooling and shaping function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a small-caliber multi-cavity plastic extrusion die with a cooling and shaping function comprises a mounting plate and at least one die body fixedly arranged on the mounting plate, wherein the die body comprises a lower die and an upper die, the rear ends of the lower die and the upper die are hinged, two opposite sides of the lower die and the upper die are respectively provided with a profile groove, two profile grooves form a profile cavity, the lower die and the upper die are respectively provided with a cooling water channel, a water guide pipe positioned at the rear side of the lower die is communicated between the rear ends of the two cooling water channels, the upper part of the upper die is fixedly provided with a water outlet pipe communicated with the cooling water channel positioned on the upper die, the front part of the lower die is fixedly provided with a water inlet pipe communicated with the cooling water channel positioned on the lower die, the lower die and the upper die are respectively provided with an air suction channel, a vent pipe is communicated between the rear ends of the, one end of the air duct is communicated with the section cavity, and the other end of the air duct is communicated with an air suction channel positioned on the upper die or the lower die.

Preferably, an L-shaped block is fixed on the front side wall of the upper die, a through hole is formed in the short end of the L-shaped block, a plug pin is inserted into the through hole, and one end of the plug pin is clamped with the lower die.

Preferably, the front side wall and the rear side wall of the lower die are respectively provided with a fixing block, and the fixing blocks are provided with screw holes.

Preferably, a clamping groove matched with the bolt is formed in the front side wall of the lower die, and one end of the bolt is clamped in the clamping groove.

Preferably, the water inlet pipe, the water outlet pipe and the air suction pipe are all provided with valves.

Preferably, the water guide pipe and the vent pipe are both elastic metal pipes.

The utility model has the advantages that: the water inlet pipe or the water outlet pipe is externally connected with the existing water pump, so that water can be introduced into the cooling water channel, the hot section bar is cooled, the air suction pipe is externally connected with the existing air pump, the air guide pipe can suck vacuum to the cavity of the section bar, the inner wall of the die body is adsorbed on the outer wall of the section bar, and the section bar is prevented from collapsing and shrinking inwards; in addition, use a plurality of moulds body together, can adapt to the longer section bar of length and use, use the flexibility good, and through taking out the bolt, can open the mould and take out the section bar, whole mould simple structure makes the cost low, can make the section bar design effectual.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic side view of the mold body of fig. 1.

Fig. 3 is a schematic cross-sectional view of the mold body of fig. 2.

Reference numbers in the figures: the device comprises a mounting plate 1, a die body 2, a lower die 21, an upper die 22, a section bar cavity 23, a cooling water channel 24, a fixed block 25, a water guide pipe 26, a water outlet pipe 27, a water inlet pipe 28, an air suction channel 29, an air vent pipe 210, an air guide pipe 211, an L-shaped block 212, a bolt 213 and an air suction pipe 214.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a small-caliber multi-cavity plastic extrusion die with cooling and shaping functions comprises a mounting plate 1 and at least one die body 2 fixedly arranged on the mounting plate 1, wherein the die body 2 comprises a lower die 21 and an upper die 22, the rear ends of the lower die 21 and the upper die 22 are hinged, the opposite sides of the lower die 21 and the upper die 22 are respectively provided with a profile groove, the two profile grooves form a profile cavity 23, the lower die 21 and the upper die 22 are respectively provided with a cooling water channel 24, a water guide pipe 26 positioned at the rear side of the lower die 21 is communicated between the rear ends of the two cooling water channels 24, the upper portion of the upper die 22 is fixedly provided with a water outlet pipe 27 communicated with the cooling water channel 24 positioned on the upper die 22, the front portion of the lower die 21 is fixedly provided with a water inlet pipe 28 communicated with the cooling water channel 24 positioned on the lower die 21, the lower die 21 and, the air pipes 210 are communicated with air suction pipes 214, a plurality of vertical air guide pipes 211 are fixed in the two air suction pipes 214, one end of each air guide pipe 211 is communicated with the section bar cavity 23, and the other end of each air guide pipe 211 is communicated with an air suction channel 29 on the upper die 22 or the lower die 21.

In this embodiment, an L-shaped block 212 is fixed to the front side wall of the upper die 22, a through hole is formed at the short end of the L-shaped block 212, a pin 213 is inserted into the through hole, and one end of the pin 213 is engaged with the lower die 21.

In this embodiment, the front and rear side walls of the lower mold 21 are provided with fixing blocks 25, and the fixing blocks 25 are provided with screw holes.

In this embodiment, a slot matching with the plug 213 is disposed on the front side wall of the lower mold 21, and one end of the plug 213 is clamped in the slot.

In this embodiment, the water inlet pipe 28, the water outlet pipe 27, and the air suction pipe 214 are all provided with valves.

In the present embodiment, the water conduit 26 and the air pipe 210 are both elastic metal pipes.

The utility model discloses when using, arrange the plastics end of current extruding machine in with the mould, after hot section bar passes through section bar chamber 23 and gets into the mould body 2, use through the external current water pump with inlet tube 28 or outlet pipe 27, can make and lead to water in the cooling water course 24, can cool down the section bar through the circulation flow of water, and use through the external current air pump with breathing pipe 214, can make air duct 211 to section bar chamber 23 evacuation, thereby make the outer wall of the inner wall adsorption profile of mould body 2, and then can prevent that the section bar from caving in, the internal contraction, in addition, use a plurality of mould bodies 2 together, can adapt to the longer section bar of length and use, use the flexibility good, through taking out bolt 213, can open mould 22 and take out the section bar, whole mould simple structure makes the cost low, can make the section bar design effectual.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A small-caliber multi-cavity plastic extrusion die with a cooling and shaping function comprises a mounting plate (1) and at least one die body (2) fixedly arranged on the mounting plate (1), and is characterized in that the die body (2) comprises a lower die (21) and an upper die (22), the rear ends of the lower die (21) and the upper die (22) are hinged, the opposite sides of the lower die (21) and the upper die (22) are respectively provided with a profile groove, the two profile grooves form a profile cavity (23), the lower die (21) and the upper die (22) are respectively provided with a cooling water channel (24), a water guide pipe (26) positioned at the rear side of the lower die (21) is communicated between the rear ends of the two cooling water channels (24), the upper part of the upper die (22) is fixedly provided with a water outlet pipe (27) communicated with the cooling water channel (24) positioned on the upper die (22), the front part of the lower die (21) is fixedly provided with a water inlet pipe (28) communicated, lower mould (21), last mould (22) all are equipped with inspiratory channel (29), and the intercommunication has breather pipe (210) between the rear end of two inspiratory channels (29), and the intercommunication has breathing pipe (214) on breather pipe (210), two all be fixed with a plurality of vertical air ducts (211) in breathing pipe (214), the one end and the section bar chamber (23) intercommunication of air duct (211), the other end and the inspiratory channel (29) that are located on last mould (22) or lower mould (21) of air duct (211) communicate.

2. The small-caliber multi-cavity plastic extrusion die with the cooling and shaping functions as claimed in claim 1, wherein an L-shaped block (212) is fixed on the front side wall of the upper die (22), the short end of the L-shaped block (212) is provided with a through hole, a bolt (213) is inserted into the through hole, and one end of the bolt (213) is clamped with the lower die (21).

3. The small-caliber multi-cavity plastic extrusion die with the cooling and shaping functions as claimed in claim 1, wherein the front and rear side walls of the lower die (21) are provided with fixing blocks (25), and the fixing blocks (25) are provided with screw holes.

4. The small-caliber multi-cavity plastic extrusion die with the cooling and shaping functions as claimed in claim 2 or 3, wherein a slot matched with the plug pin (213) is arranged on the front side wall of the lower die (21), and one end of the plug pin (213) is clamped in the slot.

5. The small-caliber multi-cavity plastic extrusion die with the cooling and shaping functions as claimed in claim 4, wherein the inlet pipe (28), the outlet pipe (27) and the air suction pipe (214) are all provided with valves.

6. The small-caliber multi-cavity plastic extrusion die with the cooling and shaping functions as claimed in claim 4, wherein the water conduit (26) and the vent pipe (210) are both elastic metal pipes.