CN219564050U - Double-cavity pipe-doubling extrusion die - Google Patents

Abstract

The utility model relates to a double-cavity parallel tube extrusion die which comprises an upper die and a lower die, wherein a fixed column is fixedly arranged on the left side of the upper die, a shaping cylinder is fixedly arranged on the right side of the lower die, a cooling structure is arranged in the shaping cylinder, and a disassembly assembly is arranged in the lower die; the cooling structure comprises a cooling pipe, an annular cavity is formed in the shaping cylinder, and the cooling pipe is fixed in the annular cavity in a surrounding mode. This two-chamber and tub extrusion tooling, through setting up cooling structure, after the material is extruded into the feed inlet, the material reposition of redundant personnel flows into the shaping intracavity from two reposition of redundant personnel holes, enters into the cooling tube from the inlet tube, finally discharges from the outlet pipe, circulates in proper order, through the cooling tube that surrounds the distribution to make cold lack of water fully take away the heat, thereby accelerate the cooling rate of mould, simultaneously through dismantling the subassembly, be convenient for separate mould and bed die, thereby conveniently take out the shaping finished piece.

Description

Double-cavity pipe-doubling extrusion die

Technical Field

The utility model relates to the technical field of extrusion dies, in particular to a double-cavity parallel tube extrusion die.

Background

The main machine of the plastic extruder is an extruder, which consists of an extrusion system, a transmission system and a heating and cooling system, wherein the extrusion system comprises a screw, a machine barrel, a hopper, a machine head and an extrusion die, the material enters the extruder from the hopper, is conveyed forward under the drive of the rotation of the screw, and is melted under the heating of the machine barrel, the shearing and compression effects brought by the screw in the forward movement process, so that the change among the three states of a glass state, a high elastic state and a viscous state is realized, and under the condition of pressurization, the material in a viscous state passes through the extrusion die with a certain shape, then becomes a continuous body with a similar cross section and the extrusion die, and is cooled and shaped to form a glass state, so that a workpiece to be processed is obtained.

According to a PE pipe extrusion die disclosed in Chinese patent publication No. CN216032327U, an annular groove is formed in a die base and a die head, a matched annular protrusion is arranged on the die head, an inner thread is formed in the inner surface of the annular groove, and an outer thread is formed on the outer surface of the annular protrusion; the die head comprises a metal core die and a metal mouth die, an extrusion channel is formed between the metal core die and the metal mouth die, and a U-shaped groove is formed at the outlet end of the metal mouth die;

the extrusion die is used for extruding the heated material into the extrusion die after melting the heated material through the extruder, and the material can be molded after being safely cooled, but in the molding process, the extrusion die has no structure for accelerating cooling of the extrusion die, so that the molding time of a product is long, the production efficiency is reduced, and the double-cavity tube-doubling extrusion die is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a double-cavity tube-merging extrusion die which has the advantages of rapid cooling and the like and solves the problem of long product time caused by low cooling speed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a two-chamber union pipe extrusion tooling, includes mould and bed die, the left side fixed mounting of mould has the fixed column, the right side fixed mounting of bed die has a design section of thick bamboo, cooling structure is installed to the inside of design section of thick bamboo, the inside of bed die is installed and is dismantled the subassembly.

The cooling structure comprises a cooling pipe, an annular cavity is formed in the shaping cylinder, the cooling pipe is fixed in the annular cavity in a surrounding mode, one end of the cooling pipe is fixedly connected with a water inlet pipe, and one end of the cooling pipe, far away from the water inlet pipe, is fixedly connected with a water outlet pipe.

The disassembly component comprises a connecting block, connecting block fixed mounting is in the left side of fixed column, the spread groove has been seted up on the right side of bed die, connecting block and spread groove assorted, the inside of bed die has been seted up the quantity and has been two movable grooves, the inside sliding connection of movable groove has the movable block, two the equal fixed mounting in one side of opposite of movable block has the locating lever, two the equal rotation in one side of movable block opposite direction is connected with the threaded rod, the left side fixed mounting of movable block has the slider, the spout that is located the movable groove left side has been seted up to the inside of bed die, slider sliding connection is in the inside of spout, the constant head tank has all been seted up to the top and the bottom of connecting block, locating lever and constant head tank assorted.

Further, the feed inlet has been seted up on the right side of last mould, the inside of going up the mould and be located the left side of feed inlet and seted up two reposition of redundant personnel holes of quantity, the left side of going up the mould is fixed with two locating pieces of quantity, the constant head tank of quantity for two is seted up on the right side of design section of thick bamboo, the locating piece joint is in the inside of constant head tank.

Further, the fixed column is located inside the shaping cylinder, and a shaping cavity is formed between the fixed column and the shaping cylinder.

Further, one end of the water inlet pipe and one end of the water outlet pipe extend to the outside through the shaping cylinder, and electromagnetic valves are arranged on the water inlet pipe and the water outlet pipe.

Further, a threaded hole positioned at one side of the movable groove is formed in the lower die, and the threaded rod is in threaded connection with the threaded hole.

Further, one end of the threaded rod, which is far away from the movable block, is fixedly connected with a rotating ring, and the rotating ring is positioned on the upper side and the lower side of the lower die.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

this two-chamber and tub extrusion tooling, through setting up cooling structure, after the material is extruded into the feed inlet, the material reposition of redundant personnel flows into the shaping intracavity from two reposition of redundant personnel holes, enters into the cooling tube from the inlet tube, finally discharges from the outlet pipe, circulates in proper order, through the cooling tube that surrounds the distribution to make cold lack of water fully take away the heat, thereby accelerate the cooling rate of mould, simultaneously through dismantling the subassembly, be convenient for separate mould and bed die, thereby conveniently take out the shaping finished piece.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of the structure of FIG. 1A in accordance with the present utility model;

fig. 3 is a front view of the structural sizing cylinder of the present utility model.

In the figure: 1. an upper die; 2. fixing the column; 3. a diversion aperture; 4. a cooling tube; 5. a shaping cylinder; 6. an annular cavity; 7. a slide block; 8. a movable groove; 9. a positioning rod; 10. a connecting block; 11. a connecting groove; 12. a lower die; 13. a threaded rod; 14. a movable block; 15. and a sliding groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one: referring to fig. 1-3, a dual-cavity tube-combining extrusion die in this embodiment includes an upper die 1 and a lower die 12, a fixing column 2 is fixedly installed on the left side of the upper die 1, a shaping cylinder 5 is fixedly installed on the right side of the lower die 12, a cooling structure is installed inside the shaping cylinder 5, a disassembling component is installed inside the lower die 12, a feeding hole is formed on the right side of the upper die 1, and two diversion holes 3 are formed inside the upper die 1 and on the left side of the feeding hole.

The cooling structure includes cooling tube 4, and annular chamber 6 has been seted up to the inside of design section of thick bamboo 5, and cooling tube 4 encircles the inside of fixing at annular chamber 6, and the one end fixedly connected with inlet tube of cooling tube 4, the one end fixedly connected with outlet pipe of inlet tube is kept away from to cooling tube 4, and fixed column 2 is located the inside of design section of thick bamboo 5, forms the shaping die cavity between fixed column 2 and the design section of thick bamboo 5.

It is to be noted that, cooling water enters the cooling pipe 4 from the water inlet pipe, and finally is discharged from the water outlet pipe, and the cooling water circulates in turn, and the cooling pipe 4 distributed in a surrounding manner is used for fully taking away heat due to the lack of cooling water, so that the cooling speed of the die is increased.

In this embodiment, one end of the water inlet pipe and one end of the water outlet pipe extend to the outside through the shaping cylinder 5, and electromagnetic valves are installed on the water inlet pipe and the water outlet pipe.

In this embodiment, the left side of the upper mold 1 is fixed with two positioning blocks, the right side of the shaping cylinder 5 is provided with two positioning grooves, and the positioning blocks are clamped in the positioning grooves.

Embodiment two: referring to fig. 1-2, the disassembly assembly comprises a connection block 10, the connection block 10 is fixedly installed on the left side of the fixed column 2, a connection groove 11 is formed in the right side of a lower die 12, the connection block 10 is matched with the connection groove 11, two movable grooves 8 are formed in the lower die 12, movable blocks 14 are slidably connected in the movable grooves 8, positioning rods 9 are fixedly installed on opposite sides of the two movable blocks 14, threaded rods 13 are rotatably connected to opposite sides of the two movable blocks 14, a sliding block 7 is fixedly installed on the left side of the movable blocks 14, a sliding groove 15 located on the left side of the movable grooves 8 is formed in the inner side of the lower die 12, the sliding block 7 is slidably connected in the sliding groove 15, positioning grooves are formed in the top and the bottom of the connection block 10, the positioning rods 9 are matched with the positioning grooves, threaded holes located on one side of the movable grooves 8 are formed in the inner side of the lower die 12, and the threaded rods 13 are in threaded connection with the threaded holes.

It should be noted that, when the sliding block 7 is slidably connected with the sliding groove 15, so that the rotating ring rotates, the threaded rod 13 screwed with the lower die 12 can be moved out by rotation, and the movable block 14 is driven to move up or down.

The working principle of the embodiment is as follows: when the material extrusion feeding port is used, after material extrusion feeding port, material is split to flow into the forming cavity from the two splitting holes 3, cooling water is fed into the cooling pipe 4 from the water inlet pipe and finally discharged from the water outlet pipe, the cooling pipe 4 distributed in a surrounding mode circulates in sequence, so that cold water is fully taken away, the cooling speed of a die is accelerated, after forming, the two rotating rings are rotated, the two threaded rods 13 are rotated, the two movable blocks 14 can be driven to move in opposite directions, the positioning rod 9 is taken out from the positioning groove, then the connecting block 10 on the fixed column 2 can be taken out from the connecting groove 11 and the fixed column 2 is pulled out, the upper die 1 and the lower die 12 can be separated, and forming pieces can be conveniently taken out.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a two-chamber union pipe extrusion tooling, includes cope match-die (1) and bed die (12), its characterized in that: the left side of the upper die (1) is fixedly provided with a fixed column (2), the right side of the lower die (12) is fixedly provided with a shaping cylinder (5), the inside of the shaping cylinder (5) is provided with a cooling structure, and the inside of the lower die (12) is provided with a disassembly assembly;

the cooling structure comprises a cooling pipe (4), an annular cavity (6) is formed in the shaping cylinder (5), the cooling pipe (4) is fixedly arranged in the annular cavity (6) in a surrounding mode, one end of the cooling pipe (4) is fixedly connected with a water inlet pipe, and one end, far away from the water inlet pipe, of the cooling pipe (4) is fixedly connected with a water outlet pipe;

the disassembly component comprises a connecting block (10), connecting block (10) fixed mounting is in the left side of fixed column (2), spread groove (11) have been seted up on the right side of bed die (12), connecting block (10) and spread groove (11) assorted, movable groove (8) that are two in quantity have been seted up to the inside of bed die (12), the inside sliding connection of movable groove (8) has movable block (14), two equal fixed mounting in one side of opposite of movable block (14) has locating lever (9), two the equal rotation in one side of movable block (14) opposite direction is connected with threaded rod (13), the left side fixed mounting of movable block (14) has slider (7), inside of bed die (12) has been seted up and is located movable groove (8) left spout (15), the inside of spout (15) is seted up to the top and the bottom of connecting block (10), locating lever (9) and locating slot assorted.

2. The dual lumen extrusion die of claim 1, wherein: the right side of the upper die (1) is provided with a feed inlet, and the left side of the upper die (1) which is positioned in the feed inlet is provided with two diversion holes (3).

3. The dual lumen extrusion die of claim 1, wherein: the fixing column (2) is positioned in the shaping cylinder (5), and a shaping cavity is formed between the fixing column (2) and the shaping cylinder (5).

4. The dual lumen extrusion die of claim 1, wherein: one ends of the water inlet pipe and the water outlet pipe extend to the outside through the shaping cylinder (5), and electromagnetic valves are arranged on the water inlet pipe and the water outlet pipe.

5. The dual lumen extrusion die of claim 1, wherein: the left side of last mould (1) is fixed with two locating pieces of quantity, the constant head tank that is two is seted up on the right side of design section of thick bamboo (5), the locating piece joint is in the inside of constant head tank.

6. The dual lumen extrusion die of claim 1, wherein: the inside of lower mould (12) has offered the screw hole that is located movable groove (8) one side, threaded rod (13) and screw hole threaded connection.

7. The dual lumen extrusion die of claim 1, wherein: one end of the threaded rod (13) far away from the movable block (14) is fixedly connected with a rotary ring, and the rotary ring is positioned on the upper side and the lower side of the lower die (12).