CN211807556U - Polyurethane forming die - Google Patents

Abstract

The utility model discloses a polyurethane forming die, the upper surface of casing is the opening, two the inner chambers of mould with the inner chamber of crucible is connected through the pouring tube, the hinge pin is located on the mounting panel, two the mould passes through the hinge pin and articulates each other, be equipped with rolling mechanism and actuating mechanism on the mounting panel, two all be equipped with demoulding mechanism on the mould, the baffle with spring seat looks adaptation, a pipe injects inert gas into the crucible, a pipe injects molten polyurethane into the crucible, under the effect of pressure difference, molten polyurethane enters into the mould, can open two moulds under the effect of actuating mechanism after the shaping, and realize convenient and fast drawing of patterns under the effect of die supporting mechanism, the setting of rolling mechanism can improve the reliability of the smoothness nature of two mould operations, the existence of the resetting mechanism can realize the self-resetting of the two molds, and the two molds are ensured to be tightly attached.

Description

Polyurethane forming die

Technical Field

The utility model relates to a forming die technical field, concrete field is a polyurethane forming die.

Background

Polyurethane is a general term for macromolecular compounds containing repeating urethane groups in the main chain, and is prepared by polyaddition of organic diisocyanates or polyisocyanates with dihydroxy or polyhydroxy compounds, and the polyurethane macromolecules may contain ether, ester, urea, biuret, allophanate and other groups besides urethane. The polyurethane material has wide application, can replace rubber, plastic, nylon and the like, and is used for airports, hotels, building materials, automobile factories, coal mine factories, cement factories, high-level apartments, villas, landscaping, color stone art, parks and the like.

When making the article that polyurethane material made, the forming die that most all need correspond, current polyurethane forming die, injection moulding all has deckle edge after finishing, and this deckle edge existence makes the drawing of patterns work of casting shape comparatively inconvenient, and this has increased relevant staff's intensity of labour and the amount of labour, and here, proposes a neotype polyurethane forming die and solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polyurethane forming die to the unedged existence of cast shape that proposes makes the drawing of patterns work of cast shape comparatively inconvenient in solving above-mentioned background art, and this has increased relevant staff's intensity of labour and the problem of the amount of labour.

In order to achieve the above object, the utility model provides a following technical scheme: a polyurethane forming die comprises a shell, wherein the upper surface of the shell is an opening, a crucible is arranged at the opening of the shell and is positioned inside the shell, one ends of two guide pipes are connected to the crucible, the other ends of the two guide pipes penetrate through the shell, a mounting plate is arranged on the upper surface of the crucible, a pouring pipe penetrates through the mounting plate, an opening and closing mechanism is arranged on the mounting plate and comprises two dies and a hinge pin, the inner cavities of the two dies and the inner cavity of the crucible are connected through the pouring pipe, the hinge pin is positioned on the mounting plate, the two dies are mutually hinged through the hinge pin, a rolling mechanism and a driving mechanism are arranged on the mounting plate, demoulding mechanisms are arranged on the two dies and comprise a countersunk groove, a top plate, a stroke rod and a spring seat, the countersunk head groove is formed in the inner side wall of the die, the stroke rod penetrates through the die, two ends of the stroke rod are respectively connected with the top plate and the spring seat, the top plate is matched with the countersunk head groove, the stroke rod is corresponding to the top plate and a compression spring is sleeved at a position between the die, a baffle is arranged on the mounting plate, and the baffle is matched with the spring seat.

Preferably, the rolling mechanism comprises a ball cavity formed in the mounting plate, a ball is rotationally connected to the ball cavity, arc-shaped grooves are formed in the surfaces, opposite to the mounting plate, of the dies, and the ball is matched with the arc-shaped grooves.

Preferably, actuating mechanism is including installing motor on the mounting panel, the output of motor is connected with the driving gear, be equipped with the pivot on the mounting panel, it is connected with driven gear to rotate in the pivot, the driving gear with driven gear meshes mutually, two all be equipped with arc rack, two on the mould arc rack with correspond the driving gear with driven gear meshes mutually.

Preferably, four corners of the bottom of the shell are provided with casters.

Preferably, be equipped with canceling release mechanical system on the mounting panel, canceling release mechanical system includes mount pad and telescopic link, the telescopic link respectively with correspond the mount pad with the mould links to each other, the outside cover of telescopic link is equipped with reset spring.

Preferably, the telescopic rod comprises an arc-shaped rod and an arc-shaped sleeve, and the arc-shaped rod and the arc-shaped sleeve are in sliding connection.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a polyurethane forming die, the mould is whole to be pressure casting, a pipe injects inert gas into to the crucible in, a pipe injects melting polyurethane into to the crucible, under the effect of pressure difference, melting polyurethane enters into in the mould, can open two moulds under actuating mechanism's effect after the shaping, and realize convenient and fast's drawing of patterns under the effect of die supporting mechanism, rolling mechanism's setting can improve the reliability of the smoothness nature of two mould operations, reset mechanism's existence can realize that two moulds reset by oneself, guarantee that two moulds closely laminate. The utility model discloses a technological means has solved the unedged existence of cast shape that exists among the prior art and has made the drawing of patterns work of cast shape comparatively inconvenient, and this has increased relevant staff's intensity of labour and the problem of the amount of labour to this mould is simple and easy on the whole, uses reliably, and the facilitate promotion is popularized.

Drawings

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

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 1;

fig. 4 is a schematic diagram of a partial enlarged structure at B in fig. 1 according to the present invention.

In the figure: 1-shell, 2-crucible, 3-guide tube, 4-mounting plate, 5-pouring tube, 6-opening and closing mechanism, 601-mould, 602-hinge pin, 7-rolling mechanism, 701-spherical cavity, 702-ball, 703-arc groove, 8-driving mechanism, 801-motor, 802-driving gear, 803-rotating shaft, 804-driven gear, 805-arc rack, 9-demoulding mechanism, 901-top plate, 902-stroke rod, 903-spring seat, 904-compression spring, 905-baffle, 10-caster, 11-resetting mechanism, 1101-mounting seat, 1102-telescopic rod and 1103-resetting spring.

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. 1-4, the present invention provides a technical solution: a polyurethane forming die comprises a shell 1, the upper surface of the shell 1 is an opening, a crucible 2 is arranged at the opening of the shell 1, the crucible 2 is positioned inside the shell 1, one end of two guide pipes 3 is connected to the crucible 2, the other end of each guide pipe 3 penetrates through the shell 1, the two guide pipes 3 are respectively used for injecting molten polyurethane and inert gas into the crucible 2, a mounting plate 4 is arranged on the upper surface of the crucible 2, the opening of the crucible 2 is sealed by the mounting plate 4, a pouring pipe 5 penetrates through the mounting plate 4, an opening and closing mechanism 6 is arranged on the mounting plate 4, the opening and closing mechanism 6 comprises two dies 601 and a hinge pin 602, the inner cavities of the two dies 601 are cavities, vent holes are formed in the upper side walls of the two dies 601 and used for preventing excessive air holes in a casting shape, the two dies 601 are tightly matched after being closed, the inner cavities of the two dies 601 are connected with the inner cavity of, hinge pin 602 is located mounting panel 4, two moulds 601 are articulated each other through hinge pin 602, be equipped with rolling mechanism 7 and actuating mechanism 8 on mounting panel 4, rolling mechanism 7 is the symmetry setting, be used for improving two mould 601 stability and reliability of operation, all be equipped with demoulding mechanism 9 on two moulds 601, demoulding mechanism 9 includes the countersunk head groove, roof 901, stroke pole 902 and spring holder 903, the countersunk head groove is seted up on the inside wall of mould 601, stroke pole 902 runs through mould 601, the both ends of stroke pole 902 are connected with roof 901 and spring holder 903 respectively, roof 901 and countersunk head groove looks adaptation, be clearance fit between the two, the clearance volume is as little as possible, the position cover that corresponds on stroke pole 902 between roof 901 and the mould 601 is equipped with compression spring, be equipped with baffle 904 on mounting panel 4, baffle 905 and spring holder 903 looks adaptation.

Specifically, rolling mechanism 7 is including offering the ball chamber 701 on mounting panel 4, and the rotation in ball chamber 701 is connected with ball 702, and arc groove 703 has all been seted up on the surface that two moulds 601 are relative with mounting panel 4, ball 702 and arc groove 703 looks adaptation, so alright stability and the smoothness nature when improving two moulds 601 operation.

Specifically, the driving mechanism 8 includes a motor 801 mounted on the mounting plate 4, the motor 801 controls the operation time thereof through a time relay, the operation time is required to be satisfied when the demolding mechanism 9 completely peels the cast product from the mold 601, an output end of the motor 801 is connected with a driving gear 802, the mounting plate 4 is provided with a rotating shaft 803, the rotating shaft 803 is rotatably connected with a driven gear 804, the driving gear 802 is engaged with the driven gear 804, two molds 601 are each provided with an arc-shaped rack 805, and the two arc-shaped racks 805 are engaged with the corresponding driving gear 802 and the corresponding driven gear 804.

Specifically, the four corners of the bottom of the housing 1 are provided with casters 10, the casters 10 are universal wheels, and the casters 10 include a self-locking mechanism.

Specifically, the mounting plate 4 is provided with a resetting mechanism 11, the resetting mechanism 11 includes a mounting seat 1101 and an expansion link 1102, the expansion link 1102 is respectively connected with the corresponding mounting seat 1101 and the mold 601, and a resetting spring 1103 is sleeved outside the expansion link 1102, so that the two molds 601 can be automatically closed and reset after the motor 801 stops operating.

Specifically, the extension rod 1102 includes an arcuate rod and an arcuate cannula that are slidably coupled to each other.

The working principle is as follows: when the utility model is used, the molten polyurethane is injected into the crucible 2 through a guide pipe 3, the valve on the guide pipe 3 is closed after a certain amount of molten polyurethane is injected, then the inert gas is injected into the crucible 2 through another guide pipe 3, at the moment, the pressure difference is generated inside the mold 601 and the crucible 2, so the molten polyurethane is pressed into the mold 601, after the molten polyurethane is filled with the cavity, the mold is cooled for a period of time, the corresponding article is formed, then the demolding work can be carried out, after the motor 801 is started, the driving gear 802 rotates and drives the driven gear 804 to rotate, the arc-shaped rack 805 which is meshed with the two rotates together, and the two molds 601 are driven to open, at the moment, the cast shape can be positioned in the cavity of one of the molds 601, after the spring seat 903 is contacted with the baffle 905, the mold 601 continuously opens, the stroke rod 902 drives the top plate 901 to move towards the, thus, the top plate 901 can eject the cast shape to complete the demolding; after demolding is finished, the motor 801 stops rotating, and the two molds 601 are closed and reset under the action of the resetting mechanism 11.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is including the conventional connected mode of circuit connection adoption conventional among the prior art, and here detailed description is not again.

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 (6)

1. A polyurethane forming die, includes casing (1), its characterized in that: the upper surface of the shell (1) is provided with an opening, a crucible (2) is arranged at the opening of the shell (1), the crucible (2) is positioned in the shell (1), one end of two guide pipes (3) is connected to the crucible (2), the other end of each guide pipe (3) penetrates through the shell (1), a mounting plate (4) is arranged on the upper surface of the crucible (2), a pouring pipe (5) penetrates through the mounting plate (4), an opening and closing mechanism (6) is arranged on the mounting plate (4), the opening and closing mechanism (6) comprises two molds (601) and a hinge pin (602), the inner cavities of the two molds (601) are connected with the inner cavity of the crucible (2) through the pouring pipe (5), the hinge pin (602) is positioned on the mounting plate (4), and the two molds (601) are hinged to each other through the hinge pin (602), be equipped with on mounting panel (4) rolling mechanism (7) and actuating mechanism (8), two all be equipped with demoulding mechanism (9) on mould (601), demoulding mechanism (9) are including heavy first groove, roof (901), stroke pole (902) and spring holder (903), the heavy first groove is seted up on the inside wall of mould (601), stroke pole (902) run through mould (601), the both ends of stroke pole (902) are connected with respectively roof (901) with spring holder (903), roof (901) with heavy first groove looks adaptation, correspond on stroke pole (902) roof (901) with position cover between mould (601) is equipped with compression spring (904), be equipped with on mounting panel (4) baffle (905), baffle (905) with spring holder (903) looks adaptation.

2. The polyurethane molding die of claim 1, wherein: rolling mechanism (7) are including seting up ball chamber (701) on mounting panel (4), ball chamber (701) internal rotation is connected with ball (702), two arc wall (703) have all been seted up on mould (601) with the surface that mounting panel (4) is relative, ball (702) with arc wall (703) looks adaptation.

3. A polyurethane forming mold according to claim 1 or 2, wherein: actuating mechanism (8) are including installing motor (801) on mounting panel (4), the output of motor (801) is connected with driving gear (802), be equipped with pivot (803) on mounting panel (4), it is connected with driven gear (804) to rotate on pivot (803), driving gear (802) with driven gear (804) mesh mutually, two all be equipped with arc rack (805), two on mould (601) arc rack (805) with corresponding driving gear (802) with driven gear (804) mesh mutually.

4. A polyurethane forming die as claimed in claim 3, wherein: four corners of the bottom of the shell (1) are provided with trundles (10).

5. The polyurethane molding die of claim 4, wherein: be equipped with canceling release mechanical system (11) on mounting panel (4), canceling release mechanical system (11) include mount pad (1101) and telescopic link (1102), telescopic link (1102) respectively with correspond mount pad (1101) with mould (601) link to each other, the outside cover of telescopic link (1102) is equipped with reset spring (1103).

6. The polyurethane molding die of claim 5, wherein: the telescopic rod (1102) comprises an arc-shaped rod and an arc-shaped sleeve, and the arc-shaped rod and the arc-shaped sleeve are in sliding connection.

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