CN213055672U

CN213055672U - Discharging device for polyurethane casting machine

Info

Publication number: CN213055672U
Application number: CN202021481494.7U
Authority: CN
Inventors: 徐读世
Original assignee: Henan Jinqi Rubber Plastic Co ltd
Current assignee: Henan Jinqi Rubber Plastic Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-04-27
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a polyurethane casting machine technical field, concretely relates to discharging device for polyurethane casting machine. Including lower casing, lower casing lower extreme is fixed with conical unloading mouth, has seted up vertical square hole in the unloading mouth, sets up the through-hole with the square hole intercommunication on the lower casing, and the cross slot has been seted up to the symmetry on the unloading mouth of square hole both sides, and cross slot and square hole intercommunication, the cross slot is all slided and is provided with the slide, all is fixed with the baffle on the relative terminal surface of two slides, pore wall sliding seal contact around terminal surface and the square hole around the baffle. The utility model has the advantages of good sealing performance, simple structure, convenient operation, and can improve work efficiency, can automatically open the discharging channel during the pouring operation, prevent the discharging channel from being blocked, and can prevent the mixture from being injected to the outside of the mold.

Description

Discharging device for polyurethane casting machine

Technical Field

The utility model relates to a polyurethane casting machine technical field, concretely relates to discharging device for polyurethane casting machine.

Background

The polyurethane casting machine is characterized in that two raw materials are delivered into a mixing chamber of a casting head from respective material tanks according to a certain proportion, under the action of specific temperature and pressure, the two raw materials are rapidly stirred in the mixing chamber of a material injection nozzle device by means of high-speed rotation of a main shaft of the mixing head and thrust generated by a special spiral structure of the mixing head, and are subjected to chemical reaction, and then are poured into a mold cavity of a polyurethane product through the material injection nozzle to be cured and molded. In the pouring process, the existing pouring machine head is poor in sealing performance, the mixture is easy to discharge in advance, so that the mixture is wasted, the valve is arranged at the discharge position of the machine head, the operation is troublesome, and the pouring work efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a sealing performance is good, simple structure, and convenient operation can improve work efficiency, can be at the automatic discharging device for the polyurethane casting machine who opens unloading passageway of pouring operation in-process.

In order to realize the purpose, the utility model provides a technical scheme is:

a discharging device for a polyurethane casting machine comprises a lower shell, wherein a conical discharging nozzle is fixed at the lower end of the lower shell, a vertical square hole is formed in the discharging nozzle, a through hole communicated with the square hole is formed in the lower shell, transverse grooves are symmetrically formed in the discharging nozzles on two sides of the square hole and communicated with the square hole, sliding plates are arranged in the transverse grooves in a sliding mode, baffles are fixed on opposite end faces of the two sliding plates, the front end face and the rear end face of each baffle are in sliding sealing contact with the front hole wall and the rear hole wall of the square hole, the opposite end faces of the two baffles are in sealing contact, inverted L-shaped braces are fixed on the end faces of the two sliding plates opposite to each other, the longitudinal parts of the braces are connected with the groove walls of the transverse grooves on one side through upper springs, vertical upper sliding grooves and vertical lower sliding grooves are respectively formed in the upper groove walls and the lower groove walls of the transverse grooves, vertical sliding strips are arranged in the upper sliding, the inclined plane lower extreme of voussoir inclines to feed nozzle outside direction, and the voussoir lower extreme is fixed with the slider, and the slider slides and sets up in lower spout, and the annular has been seted up to feed nozzle lower extreme outer fringe, and the annular communicates with lower spout, and the slider lower extreme is fixed with vertical ejector pin, and the ejector pin extends to in the annular.

Specifically, a transverse polish rod is fixed to the longitudinal portion of the brace, penetrates through the upper spring and is in sliding fit with the blanking nozzle.

Specifically, the annular is provided with the lantern ring in the slip, ejector pin and lantern ring fixed connection, and the lower spout part between the cell wall is gone up to the lantern ring and annular is gone up the cover and is equipped with down the spring.

Specifically, the baffle is a rubber baffle.

Specifically, the outer edge of the sliding plate is in sliding contact with the wall of the transverse groove.

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

the utility model discloses, sealing performance is good, simple structure, and convenient operation can improve work efficiency, can open the unloading passageway automatically in pouring operation process, prevents that discharging channel from blockking up, can prevent that the mixture from pouring into the mould outside.

Drawings

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

Detailed Description

As shown in figure 1, the discharging device for the polyurethane casting machine comprises a lower shell 1, a conical discharging nozzle 2 is fixed at the lower end of the lower shell 1, a vertical square hole 4 is formed in the discharging nozzle 2, a through hole 3 communicated with the square hole 4 is formed in the lower shell 1, transverse grooves 14 are symmetrically formed in the discharging nozzle 2 on two sides of the square hole 4, the transverse grooves 14 are communicated with the square hole 4, sliding plates 12 are arranged in the transverse grooves 14 in a sliding mode, the outer edges of the sliding plates 12 are in sliding contact with the wall of the transverse grooves 14, baffle plates 13 are fixed on the opposite end faces of the two sliding plates 12, the baffle plates 13 are rubber baffle plates, the front end faces and the rear end faces of the baffle plates 13 are in sliding sealing contact with the front hole wall and the rear hole wall of the square hole 4, the opposite end faces of the two baffle plates 13 are in sealing contact, inverted L-shaped pull strips 15 are fixed on the opposite end faces of the two sliding plates 12, the longitudinal parts of the pull strips 15 are connected with the wall of the transverse, the polish rod 11 penetrates the upper spring 16 and is in sliding fit with the blanking nozzle 2.

Vertical upper chute 10 and lower chute 6 have been seted up on the upper and lower cell wall of cross slot 14 respectively, it is provided with vertical draw runner 9 to slide in upper chute 10, draw runner 9 is located between the longitudinal portion of slide 12 and brace 15, draw runner 9 lower extreme is fixed with voussoir 8, the inclined plane lower extreme of voussoir 8 inclines to the 2 outside directions of lower feed nozzle, 8 lower extremes of voussoir are fixed with slider 7, slider 7 slides and sets up in lower chute 6, annular 5 has been seted up to 2 lower extreme outer edges of lower feed nozzle, annular 5 and 6 intercommunication of lower chute, slider 7 lower extreme is fixed with vertical ejector pin 19, ejector pin 19 extends to in the annular 5, it is provided with the lantern ring 17 to slide in the annular 5, ejector pin 19 and lantern ring 17 fixed connection, the cover is equipped with down spring 18 on the lower feed nozzle 2 part between the cell wall.

The utility model discloses install at casting machine aircraft nose lower extreme, and casing 1 and compounding chamber intercommunication down, when pouring after the compounding is accomplished, make 2 lower extremes of unloading mouth inject the filling opening of mould, along with mould and casing 1's constantly being close to down, 19 lower extremes of ejector pin make slider 7 after tightly supporting the mould, voussoir 8 and draw runner 9 go upward, lantern ring 17 goes upward along with ejector pin 19, lower spring 18 is extrudeed, when the inclined plane of voussoir 8 and the contact of the longitudinal portion of brace 15, along with going upward of voussoir 8, under the guide effect on 8 inclined planes of voussoir, the whole 2 outside direction movements of unloading mouth of brace 15, go up spring 16 and be compressed, two slides 12 keep away from each other this moment, produce the clearance between two baffles 13, square hole 4 is opened, the mixture in the compounding chamber will pour into the mould into through square hole 4. After the filling is finished, the die is far away from the lower shell 1, the ejector rod 19 loses the blocking effect, the ejector rod 19 is made to descend by the lower spring 18 through the lantern ring 17 under the elastic force effect of the lower spring 18, when the ejector rod 19 descends, the sliding block 7, the wedge block 8 and the sliding strip 9 descend, the inclined plane of the wedge block 8 loses the guiding effect on the longitudinal part of the brace 15, the upper spring 16 makes the two sliding plates 12 move relatively through the brace 15, and after the opposite end faces of the two baffles 13 are contacted, the square hole 4 is sealed again.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A discharging device for a polyurethane casting machine comprises a lower shell (1) and is characterized in that a conical discharging nozzle (2) is fixed at the lower end of the lower shell (1), a vertical square hole (4) is formed in the discharging nozzle (2), a through hole (3) communicated with the square hole (4) is formed in the lower shell (1), transverse grooves (14) are symmetrically formed in the discharging nozzles (2) on two sides of the square hole (4), the transverse grooves (14) are communicated with the square hole (4), sliding plates (12) are arranged in the transverse grooves (14) in a sliding mode, baffles (13) are fixed on opposite end faces of the two sliding plates (12), the front end face and the rear end face of each baffle (13) are in sliding sealing contact with the front and the rear end faces of the square hole (4), opposite end faces of the two baffles (13) are in sealing contact, inverted L-shaped braces (15) are fixed on opposite end faces of the two sliding plates (12), and the longitudinal portion of each brace (15) is connected with the wall of the transverse groove (14) on one side through an upper spring (, vertical upper chute (10) and lower chute (6) have been seted up on the upper and lower cell wall of cross slot (14) respectively, it is provided with vertical draw runner (9) to slide in upper chute (10), draw runner (9) are located between the longitudinal portion of slide (12) and brace (15), draw runner (9) lower extreme is fixed with voussoir (8), the inclined plane lower extreme of voussoir (8) is to the slope of lower feed nozzle (2) outside direction, voussoir (8) lower extreme is fixed with slider (7), slider (7) slide and set up in lower chute (6), annular (5) have been seted up to lower feed nozzle (2) lower extreme outer fringe, annular (5) and lower chute (6) intercommunication, slider (7) lower extreme is fixed with vertical ejector pin (19), ejector pin (19) extend to in annular (5).

2. The discharge device for the polyurethane casting machine according to claim 1, wherein the longitudinal portion of the brace (15) is fixed with a transverse polish rod (11), and the polish rod (11) penetrates through the upper spring (16) and is in sliding fit with the discharge nozzle (2).

3. The discharging device for the polyurethane casting machine according to claim 1, wherein a lantern ring (17) is slidably arranged in the ring groove (5), the ejector rod (19) is fixedly connected with the lantern ring (17), and a lower spring (18) is sleeved on the part of the blanking nozzle (2) between the lantern ring (17) and the upper groove wall of the ring groove (5).

4. The discharging device for the polyurethane casting machine according to claim 1, wherein the baffle (13) is a rubber baffle.

5. The discharge device for a polyurethane casting machine according to claim 1, wherein the outer edge of the sliding plate (12) is in sliding contact with the wall of the transverse groove (14).