CN214562371U

CN214562371U - Thermoplastic plastic hollow rotational molding forming die

Info

Publication number: CN214562371U
Application number: CN202120552478.0U
Authority: CN
Inventors: 易建武
Original assignee: Guangzhou Family Of Childhood Toys Co ltd
Current assignee: Guangzhou Family Of Childhood Toys Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-11-02
Anticipated expiration: 2031-03-17

Abstract

The utility model discloses a thermoplastic plastic cavity rotational moulding forming die, including epitheca, temperature sensor and centre form two, be provided with the temperature controller on the epitheca lateral wall, temperature controller below one side is provided with temperature sensor, the epitheca below is provided with the inferior valve, the epitheca inboard is provided with centre form one, the inferior valve inboard is provided with centre form two, the two lateral sides of centre form are provided with the electrical heating board, the temperature controller with the epitheca passes through the screw connection, temperature sensor with the epitheca passes through the screw connection, the inferior valve with the epitheca passes through the draw-in groove and connects. Has the advantages that: the utility model discloses a set up temperature sensor, temperature controller and electrical heating board, can control the plastics heating temperature in the rotational moulding mould, avoid heating temperature can not control and cause the mould in the shaping rear surface inhomogeneous, satisfy the demand that thermoplastic plastic cavity rotational moulding forming die used.

Description

Thermoplastic plastic hollow rotational molding forming die

Technical Field

The utility model relates to a rotational moulding forming die technical field, concretely relates to thermoplastic plastic cavity rotational moulding forming die.

Background

Rotational molding, rotary molding and the like, which is a thermoplastic hollow molding method, the method comprises the steps of firstly adding plastic raw materials into a mold, then continuously rotating the mold along two vertical shafts and heating the mold, gradually and uniformly coating and melting the plastic raw materials in the mold on the whole surface of a mold cavity under the action of gravity and heat energy, molding the plastic raw materials into a required shape, and then cooling and shaping the plastic raw materials to obtain a product.

At present, the outside rotation heating is adopted to present thermoplastic plastics cavity rotational moulding forming die majority, owing to lack the temperature control part, it is inhomogeneous to make heating temperature can not control to cause shaping back surface in the mould easily, can not satisfy the demand that thermoplastic plastics cavity rotational moulding forming die used, secondly, present thermoplastic plastics cavity rotational moulding forming die mostly directly heats the molten pulp to thermoplastic plastics, because the mould is sealed tight, it is poor to make the mould internal pressure cause the product drawing of patterns effect after the shaping greatly easily, the efficiency that thermoplastic plastics cavity rotational moulding forming die used has been reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the thermoplastic plastic hollow rotational molding mold is provided, and the problems that the existing thermoplastic plastic hollow rotational molding mold is lack of a temperature control part, the heating temperature cannot be easily controlled, so that the surface of the molded rear surface in the mold is not uniform, and the use requirement of the thermoplastic plastic hollow rotational molding mold cannot be met are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a thermoplastic plastic cavity rotational moulding forming die, including epitheca, temperature sensor and centre form two, be provided with the temperature controller on the lateral wall of epitheca one, temperature controller below one side is provided with temperature sensor, the epitheca below is provided with the inferior valve, the epitheca inboard is provided with centre form one, the inferior valve inboard is provided with centre form two, the two lateral sides of centre form are provided with the electrical heating board, the temperature controller with the epitheca passes through the screw connection, temperature sensor with the epitheca passes through the screw connection, the inferior valve with the epitheca passes through the draw-in groove and connects, centre form one with the epitheca passes through the draw-in groove and connects, centre form two with the inferior valve passes through the draw-in groove and connects, the electrical heating board with centre form two bonds.

Further, heat preservation coatings are arranged on the outer sides of the first internal mold and the second internal mold, and discharge nails are arranged below the second internal mold.

By adopting the technical scheme, the heat-insulating coating can insulate the heat in the internal mold I and the internal mold II.

Further, a base plate is arranged below the lower shell, hanging lugs are arranged on the upper shell and the two sides of the lower shell, fastening bolts are arranged between the hanging lugs, an air inlet pipe is arranged above the upper shell, a pressing rod is arranged in the middle of the air inlet pipe, a spring is arranged on the outer side of the pressing rod, and a sealing plate is arranged below the pressing rod.

Through adopting above-mentioned technical scheme, the shrouding can be to centre form one internal seal.

Furthermore, the heat-insulating coating is bonded with the first internal mold, the heat-insulating coating is bonded with the second internal mold, and the discharge nail is connected with the lower shell through threads.

Through adopting above-mentioned technical scheme, it is convenient to carry the cold air cooling to the mould after the shaping to discharge the nail.

Further, the backing plate is connected with the lower shell through a screw, the hanging lug is formed on the upper shell, and the hanging lug is formed on the lower shell.

Through adopting above-mentioned technical scheme, the hangers is convenient carries the upset to the mould.

Furthermore, the fastening bolt is in threaded connection with the hanging lug, the air inlet pipe is in threaded connection with the upper shell, and the pressing rod is in sliding connection with the air inlet pipe.

By adopting the technical scheme, the air inlet pipe can conveniently supply air into the die.

Furthermore, the spring is connected with the pressing rod through a clamping groove, the spring is connected with the air inlet pipe through a clamping groove, the sealing plate is connected with the pressing rod through a screw, and the sealing plate is connected with the first inner mold through a clamping groove.

Through adopting above-mentioned technical scheme, press the pole and press, can make the spring atress promote the shrouding, to the interior air delivery of mould.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1. in order to solve the problems that the prior thermoplastic hollow rotational molding die mostly adopts external rotation heating, and because a temperature control part is lacked, the heating temperature cannot be easily controlled to cause the uneven surface of the molded back surface in the die and the use requirement of the thermoplastic hollow rotational molding die cannot be met, the utility model discloses a temperature sensor, a temperature controller and an electric heating plate are arranged, the plastic heating temperature in the rotational molding die can be controlled, the uneven surface of the molded back surface in the die caused by the uncontrollable heating temperature is avoided, and the use requirement of the thermoplastic hollow rotational molding die is met;

2. for solving current thermoplastic plastics cavity rotational moulding forming die and mostly directly heating the melt thick liquid to thermoplastic plastics, because the mould is sealed tight, make the mould internal pressure cause the product drawing of patterns after the shaping poor greatly easily, reduced thermoplastic plastics cavity rotational moulding forming die availability factor's problem, the utility model discloses a set up the air-supply line, press pole, spring and shrouding, can supply air when heating in the mould and adjust pressure balance, it is poor to avoid the mould internal pressure to cause the product drawing of patterns after the shaping greatly, has improved the efficiency that thermoplastic plastics cavity rotational moulding forming die used.

Drawings

FIG. 1 is a front view of a thermoplastic hollow rotational molding mold according to the present invention;

FIG. 2 is a main sectional view of a thermoplastic hollow rotational molding mold according to the present invention;

fig. 3 is a top view of the thermoplastic hollow rotational molding mold of the present invention.

The reference numerals are explained below:

1. an upper shell; 2. a temperature controller; 3. a temperature sensor; 4. a lower case; 5. an inner mold I; 6. a second internal mold; 7. an electrical heating plate; 8. heat-insulating paint; 9. discharging nails; 10. a base plate; 11. hanging a lug; 12. fastening a bolt; 13. an air inlet pipe; 14. a pressing rod; 15. a spring; 16. and (7) closing the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the thermoplastic hollow rotational molding mold in this embodiment includes an upper shell 1, a temperature sensor 3 and a second inner mold 6, wherein a temperature controller 2 is disposed on a side wall of the upper shell 1, the temperature controller 2 is a series of automatic control elements, also called temperature control switches, temperature protectors and temperature controllers, for short, the temperature sensor 3 is disposed on one side below the temperature controller 2, the temperature sensor 3 is a sensor capable of sensing temperature and converting into usable output signals, the temperature sensor is a core part of a temperature measuring instrument, and has a plurality of varieties, the lower shell 4 is disposed below the upper shell 1, the first inner mold 5 is disposed inside the upper shell 1, the second inner mold 6 is disposed inside the lower shell 4, an electric heating plate 7 is arranged on the outer side of the inner die II 6, heat-insulating coating 8 is arranged on the outer sides of the inner die I5 and the inner die II 6, a discharge nail 9 is arranged below the inner die II 6, the heat-insulating coating 8 can insulate the inner sides of the inner die I5 and the inner die II 6, a backing plate 10 is arranged below the lower shell 4, lugs 11 are arranged on the two sides of the upper shell 1 and the lower shell 4, a fastening bolt 12 is arranged between the lugs 11, an air inlet pipe 13 is arranged above the upper shell 1, a pressing rod 14 is arranged in the middle of the air inlet pipe 13, a spring 15 is arranged on the outer side of the pressing rod 14, a sealing plate 16 is arranged below the pressing rod 14, the sealing plate 16 can seal the inner side of the inner die I5, the heat-insulating coating 8 is bonded with the inner die II 6, the discharge nail 9 is connected with the lower shell 4 through threads, the discharge nail 9 can conveniently convey cold air to cool the inside of the formed die, and the backing plate 10 is connected with the lower shell 4 through screws, the hangers 11 are formed on the upper shell 1, the hangers 11 are formed on the lower shell 4, and the hangers 11 are convenient for carrying and overturning the die.

As shown in fig. 1-3, in this embodiment, the temperature controller 2 is connected to the upper case 1 by screws, the temperature sensor 3 is connected to the upper case 1 by screws, the lower case 4 is connected to the upper case 1 by a clamping groove, the first internal mold 5 is connected to the upper case 1 by a clamping groove, the second internal mold 6 is connected to the lower case 4 by a clamping groove, the electric heating plate 7 is bonded to the second internal mold 6, so as to control the heating temperature of the plastic in the rotational molding die, prevent the heating temperature from being uncontrollable to cause uneven surface of the molded plastic in the die, and meet the use requirement of the thermoplastic hollow rotational molding die.

As shown in fig. 1-3, in this embodiment, the fastening bolt 12 is in threaded connection with the hanging lug 11, the air inlet pipe 13 is in threaded connection with the upper casing 1, the pressing rod 14 is in sliding connection with the air inlet pipe 13, the spring 15 is connected with the pressing rod 14 through a clamping groove, the spring 15 is connected with the air inlet pipe 13 through a clamping groove, the sealing plate 16 is in threaded connection with the pressing rod 14, and the sealing plate 16 is connected with the inner mold one 5 through a clamping groove, so that air supply can be supplied during heating in the mold to adjust pressure balance, poor demolding effect of the molded product due to large pressure in the mold can be avoided, and use efficiency of the thermoplastic hollow rotational molding mold can be improved.

The specific implementation process of this embodiment is as follows: placing a mould at a proper position, pouring thermoplastic plastic into an inner mould II 6, covering an upper shell 1, fixing the upper shell 1 and a lower shell 4 through a fastening bolt 12, switching on a power supply, setting the heating temperature through a temperature controller 2, starting a temperature sensor 3 to monitor the temperature in the mould, starting an electric heating plate 7 to heat and melt the thermoplastic plastic, simultaneously pressing a press rod 14 to push a seal plate 16 to open the inner mould I5, conveying air into the mould through an air inlet pipe 13 to balance the pressure between the inside of the mould and the external air pressure, avoiding the difficult demoulding of a formed product, pulling out the power supply when the temperature controller 2 reaches the set temperature and time, simultaneously holding hanging lugs 11 at two ends, simultaneously rotating the mould towards one direction to fully spread the melt in the mould, finally twisting a discharge nail 9, conveying cold air into the mould through external equipment for cooling, and being convenient to operate, the use is convenient, and the molding quality of the thermoplastic plastic hollow rotational molding mold is improved.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a thermoplastic plastic cavity rotational moulding forming die which characterized in that: comprises an upper shell (1), a temperature sensor (3) and an inner die two (6), wherein a temperature controller (2) is arranged on one side wall of the upper shell (1), the temperature sensor (3) is arranged on one side below the temperature controller (2), a lower shell (4) is arranged below the upper shell (1), an inner die one (5) is arranged on the inner side of the upper shell (1), the inner die two (6) is arranged on the inner side of the lower shell (4), an electric heating plate (7) is arranged on the outer side of the inner die two (6), the temperature controller (2) is connected with the upper shell (1) through screws, the temperature sensor (3) is connected with the upper shell (1) through screws, the lower shell (4) is connected with the upper shell (1) through a clamping groove, the inner die one (5) is connected with the upper shell (1) through a clamping groove, the inner die two (6) is connected with the lower shell (4) through a clamping groove, the electric heating plate (7) is bonded with the inner die II (6).

2. The thermoplastic hollow rotational molding mold according to claim 1, characterized in that: and heat-insulating coatings (8) are arranged on the outer sides of the internal mold I (5) and the internal mold II (6), and discharge nails (9) are arranged below the internal mold II (6).

3. The thermoplastic hollow rotational molding mold according to claim 2, characterized in that: inferior valve (4) below is provided with backing plate (10), epitheca (1) with inferior valve (4) both sides all are provided with hangers (11), be provided with fastening bolt (12) between hangers (11), epitheca (1) top is provided with air-supply line (13), air-supply line (13) middle part is provided with presses pole (14), be provided with spring (15) according to pole (14) outside, be provided with shrouding (16) according to pole (14) below.

4. The thermoplastic hollow rotational molding mold according to claim 2, characterized in that: the heat-insulating coating (8) is bonded with the internal mold I (5), the heat-insulating coating (8) is bonded with the internal mold II (6), and the discharge nail (9) is connected with the lower shell (4) through threads.

5. A thermoplastic hollow rotomoulding tool as claimed in claim 3, wherein: backing plate (10) with inferior valve (4) pass through the screw connection, hangers (11) shaping in on epitheca (1), hangers (11) shaping in on inferior valve (4).

6. A thermoplastic hollow rotomoulding tool as claimed in claim 3, wherein: the fastening bolt (12) is in threaded connection with the hanging lug (11), the air inlet pipe (13) is in threaded connection with the upper shell (1), and the pressing rod (14) is in sliding connection with the air inlet pipe (13).

7. A thermoplastic hollow rotomoulding tool as claimed in claim 3, wherein: the spring (15) is connected with the pressing rod (14) through a clamping groove, the spring (15) is connected with the air inlet pipe (13) through a clamping groove, the sealing plate (16) is connected with the pressing rod (14) through a screw, and the sealing plate (16) is connected with the inner die I (5) through a clamping groove.