CN210758770U

CN210758770U - Thin-wall plastic extrusion die for plastic bottle cap production

Info

Publication number: CN210758770U
Application number: CN201921691564.9U
Authority: CN
Inventors: 郝宏亮
Original assignee: Dongguan Jinao Machinery Co ltd
Current assignee: Dongguan Jinao Machinery Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-16
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a thin-wall plastic extrusion die for plastic bottle cap production, which comprises a base station, wherein the upper side of the base station is fixedly connected with a lower die base through a bolt, the upper side of the lower die base is fixedly connected with a female die through a bolt, the upper surface of the female die is provided with a cavity, the upper side of the base station is fixedly connected with four groups of fixed columns, the upper ends of the four groups of fixed columns are fixedly connected with a fixed plate, the lower side of the fixed plate is fixedly connected with a hydraulic cylinder, one end of a piston rod of the hydraulic cylinder is fixedly connected with an upper die base, four corners of the upper die base are connected with a screw knob through screw threads, the lower end of the screw knob is fixedly welded with a circular plate, the lower side of the upper die base is provided with, the cooling pipe is arranged, so that the plastic bottle cap on the core can be cooled.

Description

Thin-wall plastic extrusion die for plastic bottle cap production

Technical Field

The utility model relates to a plastics bottle lid production field specifically is a thin wall plastics extrusion die is used in plastics bottle lid production.

Background

The method comprises the following specific steps of compression molding of the plastic bottle cap: the suction machine sucks the mixed material into a barrel of a compression molding machine, the mixed material is heated to a semi-molten and plasticized state in the barrel, then the mixed material is quantitatively added into a mold cavity, an upper mold and a lower mold are closed, compression molding is carried out, cooling, shaping and demolding are carried out, the compression molding only needs to heat the material to about 180 ℃, the energy consumption is low, the compression molding processing temperature is low, the shrinkage is small, and the cover manufacturing size is accurate.

Some common plastic bottle cap extrusion dies are inconvenient for adjusting the thickness of the plastic bottle cap, so that the dies are frequently required to be replaced, and the labor cost is increased; some common plastic bottle cap extrusion dies lack a cooling mechanism or have poor cooling effect, which is not beneficial to improving the production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thin wall plastics extrusion die is used in production of plastics bottle lid sets up screw thread knob, clamp plate and recess, the height of adjustable terrace die to adjust the thickness of plastics bottle lid, set up the cooling tube, can cool off the plastics bottle lid on the die core, in order to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a thin-wall plastic extrusion die for plastic bottle cap production comprises a base station, wherein the upper side of the base station is fixedly connected with a lower die base through bolts, the upper side of the lower die base is fixedly connected with a female die through bolts, a cavity is formed in the upper surface of the female die, four groups of fixing columns are fixedly connected to the upper side of the base station, the upper ends of the four groups of fixing columns are fixedly connected with a fixing plate, a hydraulic cylinder is fixedly connected to the lower side of the fixing plate, one end of a piston rod of the hydraulic cylinder is fixedly connected with an upper die base, four corners of the upper die base are rotatably connected with a threaded knob through threads, circular plates are fixedly welded at the lower end of the threaded knob, a male die is arranged on the lower side of the upper die base, four corners of, the side wall of the upper die base is fixedly connected with a connecting block, the lower side of the connecting block is fixedly connected with a cooling pipe, and one side of the cooling pipe, which is close to the male die, is fixedly inserted with an air outlet pipe.

Preferably, the cavities are distributed on the female die in a rectangular array.

Preferably, the cores are distributed on the male die in a rectangular array.

Preferably, the cross section of the cavity is circular, and the edge of the cavity is provided with a strip-shaped groove.

Preferably, the outer surface of the mold core is provided with an external thread, and the lower side of the mold core is provided with a chamfer.

Preferably, guide pillars are fixedly connected to four corners of the lower surface of the male die, and guide pillar holes matched with the guide pillars are formed in the periphery of the upper surface of the female die.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the height of the male die can be adjusted by rotating the threaded knob, so that the thickness of the plastic bottle cap can be adjusted;

2. set up the cooling tube, the exhaust vent slope on the cooling tube is upwards, can cool off the plastics bottle lid on a large amount of cores, improves production efficiency.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a schematic structural diagram of the female die part of the present invention.

In the figure: 1. a base station; 2. a lower die holder; 3. a female die; 4. a cavity; 5. fixing a column; 6. a fixing plate; 7. a hydraulic cylinder; 8. an upper die holder; 9. a threaded knob; 10. a circular plate; 11. a male die; 12. a groove; 13. an annular baffle; 14. a core; 15. connecting blocks; 17. a cooling tube; 18. an air outlet pipe; 19. a guide post; 20. and (4) a guide pillar hole.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a production of plastics bottle lid is with thin wall plastics extrusion die, includes base station 1, for supporting die 3, passes through bolt fixedly connected with die holder 2 at 1 upside of base station, and 2 upsides of die holder pass through bolt fixedly connected with die 3, and die cavity 4 has been seted up to 3 upper surfaces of die, and the cross sectional shape of die cavity 4 is circular, has skid-proof sand grip in order to make the plastics bottle lid outside of production, is provided with the bar recess at die cavity 4 edge. In order to enable the produced plastic bottle caps to be tidier, the cavities 4 are arranged on the female die 3 and distributed in a rectangular array.

1 upside fixedly connected with four fixed columns of group 5 of base station, 5 upper end fixedly connected with fixed plate 6 of four fixed columns of group, 6 downside fixedly connected with pneumatic cylinders 7 of fixed plate, 7 piston rod one end fixedly connected with upper die base 8 of pneumatic cylinder, 8 four corners of upper die base are rotated through the screw thread and are connected with

screw knob

9, 9 lower extreme fixed welding of screw knob has plectane 10, 8 downside of upper die base is provided with terrace die 11, 11 upper surface four corners of terrace die are seted up flutedly 12, plectane 10 sets up in

recess

12, 12 upsides of recess pass through bolt fixedly connected with

ring baffle

13, 11 lower fixed surface of terrace die are connected with and die cavity 4 complex core 14, core 14 is.

In order to form the internal thread of the plastic bottle cap, the external thread is formed on the outer surface of the mold core 14, and in order to facilitate the insertion of the groove 12, the lower side of the mold core 14 is chamfered. In order to guide the direction and ensure that the die assembly is more accurate, guide posts 19 are fixedly connected to four corners of the lower surface of the male die 11, and guide post holes 20 matched with the guide posts 19 are formed in the periphery of the upper surface of the female die 3. The side wall of the upper die holder 8 is fixedly connected with a connecting block 15, the lower side of the connecting block 15 is fixedly connected with a cooling pipe 17, and one side of the cooling pipe 17, which is close to the male die 11, is fixedly inserted with an air outlet pipe 18.

The working principle is as follows: semi-molten plastic is added into a cavity 4, a hydraulic cylinder 7 drives a male die 11 to move downwards through an upper die base 8, a die core 14 is pressed into the cavity 4 to extrude the semi-molten plastic, the semi-molten plastic is extruded by the die core 14 and the cavity 4 to form a bottle cap, the formed bottle cap is left on the die core 14, a cooling pipe 17 blows cold air to cool the bottle cap, and after cooling is finished, demolding is carried out in a forced demolding mode, in the process of the male die 11, a guide pillar 19 and a guide pillar hole 20 are matched to guide the direction, when the thickness of the wall of the bottle cap needs to be adjusted, a thread knob 9 is rotated, a circular plate 10 below the thread knob 9 can enable the male die 11 to move up and down through an annular baffle 13, so that the plane distance between the die core 14 and the cavity 4 during closing is adjusted, and the purpose of adjusting.

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

Claims

1. The utility model provides a production of plastics bottle lid is with thin wall plastics extrusion die, includes base station (1), its characterized in that: the die is characterized in that the upper side of the base platform (1) is fixedly connected with a die holder (2) through bolts, the upper side of the die holder (2) is fixedly connected with a female die (3) through bolts, a cavity (4) is formed in the upper surface of the female die (3), the upper side of the base platform (1) is fixedly connected with four groups of fixing columns (5), the upper ends of the four groups of fixing columns (5) are fixedly connected with a fixing plate (6), the lower side of the fixing plate (6) is fixedly connected with a hydraulic cylinder (7), an upper die holder (8) is fixedly connected to one end of a piston rod of the hydraulic cylinder (7), four corners of the upper die holder (8) are rotatably connected with a threaded knob (9) through threads, a circular plate (10) is fixedly welded at the lower end of the threaded knob (9), a male die (11) is arranged on the, the improved punch die is characterized in that an annular baffle (13) is fixedly connected to the upper side of the groove (12) through a bolt, a core (14) matched with the die cavity (4) is fixedly connected to the lower surface of the male die (11), a connecting block (15) is fixedly connected to the side wall of the upper die base (8), a cooling pipe (17) is fixedly connected to the lower side of the connecting block (15), and an air outlet pipe (18) is fixedly connected to one side, close to the male die (11), of the cooling pipe (17).

2. The thin-walled plastic extrusion die for plastic bottle caps as claimed in claim 1, wherein the thin-walled plastic extrusion die comprises: the cavities (4) are distributed on the female die (3) in a rectangular array.

3. The thin-walled plastic extrusion die for plastic bottle caps as claimed in claim 1, wherein the thin-walled plastic extrusion die comprises: the cores (14) are distributed on the male die (11) in a rectangular array.

4. The thin-walled plastic extrusion die for plastic bottle caps as claimed in claim 1, wherein the thin-walled plastic extrusion die comprises: the cross section of the cavity (4) is circular, and a strip-shaped groove is formed in the edge of the cavity (4).

5. The thin-walled plastic extrusion die for plastic bottle caps as claimed in claim 1, wherein the thin-walled plastic extrusion die comprises: the outer surface of the mold core (14) is provided with an external thread, and the lower side of the mold core (14) is provided with a chamfer.

6. The thin-walled plastic extrusion die for plastic bottle caps as claimed in claim 1, wherein the thin-walled plastic extrusion die comprises: guide posts (19) are fixedly connected to four corners of the lower surface of the male die (11), and guide post holes (20) matched with the guide posts (19) are formed in the periphery of the upper surface of the female die (3).