CN214521510U

CN214521510U - Open mould foaming equipment

Info

Publication number: CN214521510U
Application number: CN202120512022.1U
Authority: CN
Inventors: 李晓甫; 曹志强; 吴沙; 钟兴尉; 张世炜; 周海波
Original assignee: CIMC Vehicles Group Co Ltd
Current assignee: CIMC Vehicles Group Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-10-29
Anticipated expiration: 2031-03-10

Abstract

The utility model provides an uncovered mould foaming equipment, include: the frame comprises two upright columns which are oppositely spaced and a cross beam arranged between the two upright columns; the material injection guns are arranged on the cross beam at intervals, each material injection gun can move along the cross beam, each material injection gun is provided with a hollow mixing cavity, a discharge port and a feed port, the discharge port is communicated with the mixing cavity, and the discharge port faces downwards; the feeding units are arranged on the rack and positioned above the cross beam, and the feeding units and the injection guns are arranged in a one-to-one up-and-down corresponding mode; each feeding unit comprises a plurality of independent feeding pipes, and each feeding pipe is used for respectively conveying different materials; the plurality of feeding pipes extend downwards and are communicated with a feeding hole of a corresponding material injection gun, so that all materials are mixed in the mixing cavity and are sprayed out through the discharging hole to form foaming materials. Each feed pipe corresponds with each feed inlet respectively and communicates with each other for the material just can mix in the hybrid chamber and produce the reaction, has avoided the jam of pipeline.

Description

Open mould foaming equipment

Technical Field

The utility model relates to a foaming former technical field, in particular to uncovered mould foaming equipment.

Background

The traditional open-die foaming press adopts a mode that a gun head is added with a shunt pipe for injecting materials, the shunt pipe is provided with a plurality of small holes which are distributed at intervals, and the foaming materials flowing out of the gun head flow out through the small holes and are poured on corresponding dies. However, the foaming material remaining in the shunt tube is foamed to generate polyurethane foam, and the foam blocks the pipeline, so that the shunt tube needs to be replaced every time the material is injected. Frequent replacement not only wastes the shunt tubes and the foaming materials, but also causes uneven foaming density of the board due to uneven flow of each shunt hole when the shunt tubes are used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an uncovered mould foaming equipment to adopt the foaming material that the shunt tubes leads to and the extravagant problem of material pipe among the solution prior art.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an open-mold foaming device comprising: the frame comprises two upright columns which are oppositely spaced and a cross beam arranged between the two upright columns; the material injection guns are arranged on the cross beam at intervals, each material injection gun can move along the cross beam, each material injection gun is provided with a hollow mixing cavity, a discharge port and a feed port, the discharge port is communicated with the mixing cavity, and the discharge port faces downwards; the feeding units are arranged on the rack and positioned above the cross beam, and the feeding units and the injection guns are arranged in a one-to-one up-and-down corresponding mode; each feeding unit comprises a plurality of independent feeding pipes, and each feeding pipe is used for respectively conveying different materials; the plurality of the material supply pipes extend downwards and are communicated with a corresponding material inlet of the material injection gun, so that all materials are mixed in the mixing cavity and are sprayed out from the material outlet to form foaming materials.

According to an embodiment of the present invention, the feeding pipe comprises an inflexible rigid pipe section and a bendable flexible pipe section which are in butt joint and communicated with each other up and down; the flexible pipe section is positioned below the rigid pipe section and is communicated with the feeding hole.

According to an embodiment of the present invention, the feed inlet has a plurality of; the material injection gun is also provided with a plurality of connecting pipes; the connecting pipe is made of a rigid material; each connecting pipe is vertical and corresponds to be connected in one the feed inlet, the connecting pipe is kept away from the upper end of feed inlet with flexible pipe section connects.

According to an embodiment of the invention, a plurality of rigid pipe sections of the same feed unit are arranged side by side and on the same plane.

According to an embodiment of the present invention, the frame further comprises a fixed beam and a plurality of mounting seats; the fixed beam is connected to the tops of the two upright columns along the horizontal direction and is positioned above the cross beam; the installation bases are spaced and fixed on the same side of the fixed beam, and the number of the installation bases is consistent with that of the feeding units; the rigid pipe section of each feeding unit is fixedly connected to each mounting seat; the flexible pipe section is located below the mounting seat and connected with the feeding hole.

According to the utility model discloses an embodiment, it is a plurality of the mount pad is in along horizontal equidistant arranging on the fixed beam.

According to the utility model discloses an embodiment, each along the protruding mounting panel that is equipped with of level on the mount pad, each the rigid pipe section of feed pipe runs through to be fixed in on the mounting panel.

According to an embodiment of the present invention, the open-die foaming device further comprises a plurality of control valves; each control valve is connected between the rigid pipe section and the flexible pipe section and is used for controlling the connection and disconnection between the two pipe sections; the control valve member is located below the mounting seat.

According to an embodiment of the utility model, the open-die foaming equipment further comprises a support frame and an upper operating platform; the support frame is erected above the rack, and the upper operating platform is horizontally laid on the top of the support frame; the upper surface of the upper operating platform is provided with a plurality of feeders for providing different materials; the number of the feeders is consistent with that of the feeding pipes in each feeding unit; each feeder is provided with an air inlet, a material inlet and a material outlet which are communicated with each other, and the material outlet is communicated with the rigid pipe section in a connecting way.

According to an embodiment of the present invention, the rigid pipe section includes a first branch pipe located on the upper operation platform and connected to the feeder, and a second branch pipe integrally formed by bending with the first branch pipe; the second branch pipe is located on the outer side of the upper operating platform and extends downwards to be connected with the flexible pipe section.

According to an embodiment of the present invention, the cross beam is provided with a rack extending in the transverse direction; the open mould foaming equipment also comprises a plurality of material injection gun driving components which are arranged in one-to-one correspondence with the material injection guns; the material injection gun driving assembly comprises a sliding seat, and a gear, a material injection gun mounting seat and a driving motor which are arranged on the sliding seat; the gear is meshed with the rack, and an output shaft of the driving motor is in transmission connection with the gear wheel so as to drive the gear to rotate and drive the sliding seat to move along the cross beam; the material injection gun is fixedly arranged on the material injection gun mounting seat.

According to an embodiment of the present invention, two slide rails are respectively disposed on opposite side surfaces of the two vertical columns, and the slide rails extend along the height direction of the vertical columns; the two ends of the cross beam are respectively in sliding fit with the two sliding rails so as to move up and down along the sliding rails.

According to the above technical scheme, the utility model provides an uncovered mould foaming equipment has following advantage and positive effect at least:

1. a plurality of material injection guns are adopted, wherein each material injection gun can independently move along the cross beam so as to adapt to the pouring requirements of plates with different widths. A plurality of annotate each other and stand-by each other between the spray gun, each annotates the spray gun and corresponds to dispose a feeding unit, annotates when single spray gun or the feeding unit who corresponds with it breaks down, and remaining spray guns can not be influenced, and the production is maintained in the continuation work, has reduced the probability of shutting down by a wide margin.

2. The feeding system of the equipment consists of a plurality of independent feeding units, each feeding unit is vertically and correspondingly arranged with each pouring gun, and a plurality of feeding pipes in the feeding units respectively convey different materials, so that the pipeline blockage caused by chemical reaction generated by mixing the materials is prevented; each feed pipe corresponds with each feed inlet of annotating the material rifle respectively and communicates with each other for all materials mix in the hybrid chamber of annotating the material rifle and produce the reaction, and just can form the required foaming material of pouring through the discharge gate blowout, so, the foaming material can not the jam in each pipeline, and feed pipe sustainable use has avoided the waste that the repeated replacement of pipeline leads to.

Drawings

Fig. 1 is a front view of the pouring equipment of the open mold in the embodiment of the invention.

Fig. 2 is a schematic view of the connection of the frame, the injection lance and the feed unit of fig. 1.

Fig. 3 is an enlarged view of fig. 2 at a.

Fig. 4 is a top view of the pouring equipment of the open mold in the embodiment of the present invention.

The reference numerals are explained below:

200-sheet material,

1-frame, 11-upright post, 111-slide rail, 13-cross beam, 131-rack, 15-fixed beam, 16-mounting seat, 17-mounting plate,

2-material injection gun, 21-connecting pipe, 22-gun body, 23-nozzle, 201-discharge hole, 203-feed hole,

3-supply unit, 31-supply pipe, 311-rigid pipe section, 3111-first branch pipe, 3112-second branch pipe, 313-flexible pipe section,

315-control valve element,

4-a material injection gun driving component, 41-a sliding seat, 43-a material injection gun mounting seat, 44-a driving motor,

5-support frame, 51-staircase,

6-upper operation platform, 601-longitudinal channel,

71-feeder, 711-A feeder, 712-B feeder, 713-auxiliary material feeder, 73-master console, 75-laminator.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

The present embodiment provides an open-mold foaming device, which employs a plurality of injection guns and a plurality of feeding units configured corresponding to the injection guns one by one. Each feed unit is independent, all has many feed pipes, and a plurality of feed pipes carry different materials respectively, prevents to mix between the material to produce chemical reaction and leads to the pipeline to block up, so feed pipe sustainable use need not frequent change.

Referring to fig. 1, fig. 1 shows a specific structure of an open-mold foaming apparatus provided in this embodiment, which includes a frame 1, a plurality of injection guns 2, and a plurality of feeding units 3.

Based on the view direction of fig. 1, on the rack 1, the feeding units 3 are located above the material injection guns 2 at intervals, and each feeding unit 3 and each material injection gun 2 are arranged in a vertically corresponding relationship.

The frame 1 comprises two opposite spaced vertical columns 11 and a cross beam 13 arranged between the two vertical columns 11.

A plurality of annotate the material rifle 2 interval and arrange on crossbeam 13, each annotates the material rifle 2 and can move with the adjusting position along crossbeam 13, can draw close relatively or keep away from between the adjacent material rifle 2 to the pouring demand of the panel of adaptation different width. The injection gun 2 has a hollow mixing cavity (not shown) and a discharge port 201 and a feed port 203 which are communicated with the mixing cavity, wherein the discharge port 201 faces downwards vertically and sprays feed liquid onto a horizontally placed plate 200 below the cross beam 13. In other embodiments, the material injection gun 2 can rotate itself to adjust the discharging direction, so that the discharging hole 201 is in a downward inclined state.

A plurality of feed units 3 are located on frame 1 and are located the top of crossbeam 13, and a plurality of feed units 3 and a plurality of notes material rifle 2 one-to-one are corresponding to the setting from top to bottom.

Each feed unit 3 comprises a plurality of separate feed pipes 31, each feed pipe 31 being adapted to convey a different material. The plurality of feeding pipes 31 extend downwards to be communicated with the feeding hole 203 of a corresponding injection gun 2, so that all the materials are mixed in the mixing cavity and are ejected out through the discharging hole 201 to form a polyurethane foaming material.

It is worth to say that the polyurethane foaming material is a high molecular polymer which is prepared by mixing isocyanate and polyether serving as main raw materials through a material injection gun 2 under the action of various auxiliary agents such as a foaming agent, a catalyst, a flame retardant and the like and foaming through a high-pressure spraying phenomenon. In this embodiment, the number of the feeding pipes 31 in each feeding unit 3 can be three, and the materials can be classified into the material feeding pipes 31 a, the material feeding pipes 31B and the auxiliary material feeding pipes 31 according to the different types of materials to be fed. Wherein, the material A comprises monomer polyether and foaming agent, the material B is isocyanate, and the auxiliary material can be surfactant.

The polyurethane foaming material is a product of cross combination of an aerosol technology and a polyurethane foam technology. The concrete expression is as follows: annotate the spray gun 2 and set the pneumatic cylinder, realize the straight reciprocating motion of piston in the cylinder through injection hydraulic oil, the piston can self-cleaning. The cylinder barrel is communicated with the mixing cavity along the axial direction of the cylinder barrel, and the mixing cavity can be opened and closed when the piston reciprocates.

Referring to fig. 2, the plurality of feed ports 203 on the injection gun 2 are provided, and the plurality of feed ports 203 are respectively arranged in one-to-one correspondence with the plurality of feed pipes 31. Only one discharge port 201 is provided, and the discharge port 201 is correspondingly provided with the nozzle 23. The material A, the material B and the like flow through the feeding holes 203 through the feeding pipe 31 at high pressure and high flow rate to be injected into the mixing cavity, collide and mix with each other at high speed in the mixing cavity, and rapidly flow out of the nozzle 23 to be uniformly mixed and atomized under the action of the piston so as to form foaming materials.

Above-mentioned annotate material rifle 2 adopts the mode of high pressure foaming, and mixing efficiency is good, and the foam is even, accomplishes the back at the pouring, and the material rifle passes through the piston and takes the resorption function certainly, can not remain the material in the hybrid chamber, need not to wash, can not appear the drip phenomenon yet, and it is extravagant not have the foam.

The plurality of feeding pipes 31 in the feeding unit 3 respectively convey different materials, so that the blockage of pipelines caused by chemical reaction generated by mixing the materials is prevented; each feed pipe 31 corresponds with each feed inlet 203 of annotating the material rifle 2 respectively and communicates with each other for all materials mix in the hybrid chamber of annotating the material rifle 2 and produce the reaction, and just can form the required foaming material of pouring through discharge gate 201 blowout, so, the foaming material can not be blocked up in each feed pipe 31, and feed pipe 31 sustainable use has avoided the waste that the repeated replacement of pipeline leads to.

In this embodiment, a plurality of injection guns 2 can inject the material simultaneously, and annotate the material speed and can adjust to unanimous, annotate the material volume and also can set as unanimous, can evenly pour the foaming material on panel 200, and it is effectual to pour, improves the uniformity of panel 200.

In the present embodiment, the plurality of material injection guns 2 are mutually standby and do not affect each other. Each injection gun 2 is correspondingly provided with a feeding unit 3, and a plurality of injection guns 2 (feeding units 3) are mutually independent and are mutually in cross communication. When a single material injection gun 2 or the corresponding feeding unit 3 breaks down, the rest material injection guns 2 can not be affected, the work is continued to maintain the survival, and the probability of shutdown is greatly reduced.

With continued reference to FIG. 2, feed tube 31 includes an inflexible rigid section 311 and a flexible section 313 in abutting communication; the flexible pipe section 313 is located below the rigid pipe section 311, is connected and communicated with the feeding port 203 of the injection gun 2, and can be bent along with the movement of the injection gun 2.

The rigid pipe section 311 is relatively rigid due to the characteristic of being not easily bent, and is commonly referred to as a rigid pipe. The rigid pipe section 311 is a metal seamless pipe formed by adopting a bent pipe technology, has no welding line, and has the advantages of high pressure bearing capacity, high rigidity, long service life and the like. Flexible tube section 313, which is relatively flexible and easily bendable, is commonly referred to as a hose, and is typically made of a conventional plastic material.

The design has the advantages that: firstly, because the flexible pipe section 313 is directly connected with the movable material injection gun 2 and moves together, the phenomena of bending and deformation are easily generated, the damage of the pipeline is accelerated, and the flexible pipeline needs to be maintained or replaced in time. Therefore, in the present embodiment, for the same supply pipe 31, a portion of the pipe section is designed to be the rigid pipe section 311, and the other portion is designed to be the flexible pipe section 313, so that only the flexible pipe section 313 needs to be replaced during maintenance, and the maintenance cost is reduced. Also, when rigid tube section 311 is of a greater length and flexible tube section 313 is of a lesser length, i.e., flexible tube section 313 is shorter, maintenance costs may be further reduced and maintenance and replacement of the tubing may be simpler.

Secondly, the rigid pipe section 311 can be regularly arranged, so that the appearance is attractive, the service life is long, and the whole feeding pipeline is convenient to overhaul and maintain.

Preferably, the plurality of rigid pipe sections 311 of the same feeding unit 3 are arranged side by side and on the same plane (vertical plane), which is beneficial to the arrangement of the pipelines and has an attractive appearance. Meanwhile, the rigid pipe sections 311 of two adjacent feed units 3 may be located on the same plane or arranged at intervals in a staggered manner in order to save space.

In the present embodiment, the injection gun 2 further has a plurality of connection pipes 21.

The connection tube 21 is integrally formed on the gun body 22 of the injection gun 2, and the connection tube 21 serves as an intermediate transition piece for connecting the flexible tube section 313 and the injection gun 2. The connecting pipe 21 is made of rigid material, and has long service life. Each connecting pipe 21 is vertical and is correspondingly connected to one feeding port 203, and the upper end of the connecting pipe 21 far away from the feeding port 203 is connected with the flexible pipe section 313.

The length of the connecting pipe 21 is smaller than that of the flexible pipe section 313, and the upper end of the connecting pipe 21 does not exceed the upper end surface of the cross beam 13. Due to the presence of connecting tube 21 and rigid tube segment 311, the amount of flexible tube segment 313 used may be minimized.

Referring to fig. 3, the frame 1 further includes a fixed beam 15, a plurality of mounting seats 16, and a plurality of mounting plates 17.

The fixed beam 15 is substantially half-i-shaped, and when installed, the opening of the fixed beam 15 faces downward and is connected to the top of the two uprights 11 in a horizontal direction so as to be located above the cross member 13.

The plurality of mounting seats 16 are spaced apart from and fixed to the same side (front side) of the fixed beam 15 with reference to the view direction of fig. 3. The number of the mounting seats 16 corresponds to the number of the feed units 3; the rigid pipe section 311 of each feeding unit 3 is fixedly connected to each mounting base 16; flexible tube segment 313 is positioned below mounting block 16 and is connected to feed port 203.

The flexible pipe section 313 is connected between the stationary mounting base 16 and the movable injection lance 2, and since the length of the flexible pipe section 313 is greater than the vertical height interval between the mounting base 16 and the injection lance 2, the flexible pipe section 313 is bent and extends obliquely in the height direction of the frame 1, thereby allowing a sufficient space for the injection lance 2.

Preferably, the plurality of mounting seats 16 are arranged on the fixed beam 15 at equal intervals along the transverse direction, which is equivalent to that the feeding pipes 31 of the plurality of feeding units 3 are arranged side by side at intervals, so as to facilitate the regular arrangement of the rigid pipe sections 311 at equal intervals.

Each mounting base 16 is provided with a mounting plate 17 protruding horizontally. On the same mounting base 16, through holes whose number is consistent with the number of the feeding pipes 31 in each feeding unit 3 are correspondingly arranged on each mounting plate 17 in a vertical penetrating way, and the rigid pipe section 311 of each feeding pipe 31 is arranged in the through holes in a penetrating way. In other embodiments, the mounting plate may be replaced by a U-shaped fastener, and both ends of the opening of the fastener are bolted to the mounting seat 16 for being sleeved and fixed on the outer periphery of the rigid pipe section 311.

In this embodiment, the open-mold foaming device further comprises a plurality of control valve members 315.

Each control valve member 315 is connected between the rigid pipe section 311 and the flexible pipe section 313 and is used for controlling the connection and disconnection between the two pipe sections; the control valve member 315 is located below the mounting block 16. Specifically, the control valve 315 is a ball valve, a stop valve, a regulating valve, or the like.

In this embodiment, the cross beam 13 is height-adjustably installed between the two vertical columns 11 to adjust the height position of the material injection gun 2, so as to meet more casting requirements of the plate 200.

Specifically, two slide rails 111 are respectively disposed on opposite side surfaces of the two upright posts 11, and the slide rails 111 extend along the height direction of the upright posts 11. The two ends of the cross beam 13 are respectively in sliding fit with the two slide rails 111 through slide blocks so as to move up and down along the slide rails 111. The slider sets the lead screw pair, moves up and down through motor drive crossbeam 13 and adjusts the height of annotating the material rifle 2 to the foaming platform truck of adaptation different heights and the pouring operation of different board thickness.

In the present embodiment, the injection gun 2 moves left and right along the cross beam 13 by means of meshing of the rack and pinion 131 to adjust the position.

Referring back to fig. 2, the cross beam 13 is provided with a rack 131 extending in the transverse direction.

The open-mold foaming equipment also comprises a plurality of injection gun driving components 4 which are arranged corresponding to the injection guns 2 one by one. The injection gun driving assembly 4 comprises a sliding seat 41, and a gear (not shown) arranged on the sliding seat 41, an injection gun mounting seat 43 and a driving motor 44; the gear is engaged with the rack 131. An output shaft of the driving motor 44 is in transmission connection with a gear wheel to drive the gear wheel to rotate, thereby driving the sliding base 41 to move along the cross beam 13. The material injection gun 2 is fixedly arranged on the material injection gun mounting seat 43, the material injection gun mounting seat 43 is connected with the sliding seat 41 through a screw and moves along with the sliding seat 41, and therefore the material injection gun is suitable for the pouring operation of the plates 200 with different widths.

Referring to fig. 4, the open-mold foaming apparatus further includes a supporting frame 5 and an upper operation platform 6.

Specifically, the structure of the support frame 5 is similar to that of the rack 1, the support frame 5 is higher than the rack 1 and is erected above the rack 1, and the transverse direction of the support frame 5 is consistent with that of the rack 1. The number of the supporting frames 5 is plural, and the plurality of supporting frames 5 are arranged at intervals along the longitudinal direction perpendicular to the transverse direction. The top operating platform is horizontally laid on the tops of the plurality of support frames 5 along the longitudinal direction, and the platform and the support frames 5 form a similar hollow box-shaped structure. A gap is formed between two transverse sides of each supporting frame 5, and the gaps of the supporting frames 5 are communicated along the longitudinal direction to form a longitudinal channel 601. The longitudinal channel 601 can be penetrated by the sheet 200 and a rail for transporting the sheet 200, so as to realize loading and unloading of the sheet 200.

One side (left side) of the support frame 5 is also specially provided with an escalator 51, so that a worker can climb on the top operating platform along the escalator 51 to perform corresponding operation.

The open-mold foaming equipment of the embodiment further comprises a laminating machine 75, wherein the laminating machine 75 is positioned in the longitudinal channel 601 and close to the rear of the support frame 5, and is used for receiving the cast plate conveyed from the front of the support frame 5 and covering and pressing another plate on the plate with the foamed material, so that a finished foamed plate is manufactured.

The upper surface area of the top operation platform is large, a large number of feeders 71 for providing different materials are arranged, a plurality of pipelines are laid, and a master control console 73 is further arranged.

The number of feeders 71 is the same as the number of feed pipes 31 in each feed unit 3; each feeder 71 has an air inlet, a material inlet and a material outlet communicating with each other. Wherein the air and the material are mixed together and output through the material outlet. The material outlet is connected and communicated with the rigid pipe section 311.

The rigid pipe section 311 includes a first branch pipe 3111 and a second branch pipe 3112 formed by bending integrally with the first branch pipe 3111. The first branch pipe 3111 is located above the upper layer operation platform 6, the first branch pipe 3111 extends horizontally, one end of the first branch pipe 3111 is connected with the material outlet of the feeder 71, and the other end of the first branch pipe 3111 extends beyond the edge of the upper layer operation platform 6.

The second branch pipe 3112 is vertically connected to the first branch pipe 3111 to form an L-like structure. A second section 3112 is located outside the upper deck 6 and extends downwardly for connection to the flexible pipe section 313.

The feeders 71 are divided into an a feeder 711, a B feeder 712, and an auxiliary material feeder 713 corresponding to different materials. A plurality of a material feeders 711 are sequentially disposed side by side on one side of the upper surface of the top deck operation platform, a plurality of B material feeders 712 are disposed on the other side (near the escalator 51) on the upper surface of the platform, and the auxiliary material feeder 713 and the B material feeder 712 are disposed adjacent to each other. The volume of the a-material feeder 711 and the B-material feeder 712 are nearly identical, while the volume of the auxiliary material feeder 713 is small. The console 73 is disposed in a gap between the

material feeders

711 and 712, and the console 73 is responsible for controlling the flow rate of each feeder 71.

To sum up, the utility model provides a pair of uncovered mould foaming equipment has following advantage and positive effect at least:

first, a plurality of injection guns 2 are employed. A plurality of annotate the material rifle 2 and can annotate the material simultaneously, and annotate the material speed and can adjust to unanimous, annotate the material volume and also can establish to unanimous to evenly pour into a mould on panel 200, it is effectual to pour into a mould, improves panel 200's uniformity. The plurality of material injection guns 2 are mutually standby and do not influence each other. Each injection gun 2 is correspondingly provided with a feeding unit 3, and a plurality of injection guns 2 (feeding units 3) are mutually independent and are mutually in cross communication. When a single material injection gun 2 or the corresponding feeding unit 3 breaks down, the rest material injection guns 2 can not be affected, the work is continued to maintain the survival, and the probability of shutdown is greatly reduced.

Secondly, the plurality of feeding pipes 31 in the feeding unit 3 respectively convey different materials, so that the blockage of pipelines caused by chemical reaction generated by mixing the materials is prevented; each feed pipe 31 corresponds with each feed inlet 203 of annotating the material rifle 2 respectively and communicates with each other for all materials mix in the hybrid chamber of annotating the material rifle 2 and produce the reaction, and just can form the required foaming material of pouring through discharge gate 201 blowout, so, the foaming material can not be blocked up in each pipeline, and feed pipe 31 sustainable use has avoided the waste that the repeated replacement of pipeline leads to. Meanwhile, the material injection gun 2 adopts a high-pressure foaming mode, so that the mixing efficiency is good, the foam is uniform, after the pouring is finished, the material gun has a suck-back function through a piston, the material cannot be left in a mixing cavity, the cleaning is not needed, the dripping phenomenon cannot occur, and the foam waste is avoided.

Finally, feed tube 31 comprises an inflexible rigid section 311 and a flexible section 313 in abutting communication one above the other; the flexible tube 313 is connected to the inlet 203 of the gun 2 and can bend as the gun 2 moves. In this embodiment, the feed tube 31 is not a common unitary hose construction, but is replaced by a rigid tube segment 311 in part of a flexible tube segment. Because flexible tube segment 313 is a moving part, it is easily damaged and requires timely maintenance or replacement. And the rigid pipe section 311 is not easy to damage, so that the maintenance cost is reduced. Meanwhile, the rigid pipe sections 311 can be regularly arranged, so that the appearance is attractive, the service life is long, and the maintenance of the pipeline is facilitated.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. An open-mold foaming apparatus, comprising:

the frame comprises two upright columns which are oppositely spaced and a cross beam arranged between the two upright columns;

the material injection guns are arranged on the cross beam at intervals, each material injection gun can move along the cross beam, each material injection gun is provided with a hollow mixing cavity, a discharge port and a feed port, the discharge port is communicated with the mixing cavity, and the discharge port faces downwards;

the feeding units are arranged on the rack and positioned above the cross beam, and the feeding units and the injection guns are arranged in a one-to-one up-and-down corresponding mode; each feeding unit comprises a plurality of independent feeding pipes, and each feeding pipe is used for respectively conveying different materials; the plurality of the material supply pipes extend downwards and are communicated with a corresponding material inlet of the material injection gun, so that all materials are mixed in the mixing cavity and are sprayed out from the material outlet to form foaming materials.

2. The open-mold foaming device of claim 1, wherein:

the feeding pipe comprises an inflexible rigid pipe section and a bendable flexible pipe section which are in butt joint and communicated up and down; the flexible pipe section is positioned below the rigid pipe section and is communicated with the feeding hole.

3. The open-mold foaming device of claim 2, wherein:

the feed inlet is provided with a plurality of feed inlets;

the material injection gun is also provided with a plurality of connecting pipes; the connecting pipe is made of a rigid material; each connecting pipe is vertical and corresponds to be connected in one the feed inlet, the connecting pipe is kept away from the upper end of feed inlet with flexible pipe section connects.

4. The open-mold foaming device of claim 2, wherein:

a plurality of rigid pipe sections of the same feeding unit are arranged side by side and are positioned on the same plane.

5. The open-mold foaming device of claim 2, wherein:

the rack also comprises a fixed beam and a plurality of mounting seats;

the fixed beam is connected to the tops of the two upright columns along the horizontal direction and is positioned above the cross beam; the installation bases are spaced and fixed on the same side of the fixed beam, and the number of the installation bases is consistent with that of the feeding units; the rigid pipe section of each feeding unit is fixedly connected to each mounting seat; the flexible pipe section is located below the mounting seat and connected with the feeding hole.

6. The open-mold foaming device of claim 5, wherein:

the installation seats are arranged on the fixed beam at equal intervals in the transverse direction.

7. The open-mold foaming device of claim 5, wherein:

and a mounting plate is horizontally arranged on each mounting seat in a protruding mode, and a rigid pipe section of each feeding pipe penetrates and is fixed on the mounting plate.

8. The open-mold foaming device of claim 5, wherein:

the open-die foaming equipment also comprises a plurality of control valve members;

each control valve is connected between the rigid pipe section and the flexible pipe section and is used for controlling the connection and disconnection between the two pipe sections; the control valve member is located below the mounting seat.

9. The open-mold foaming device of claim 2, wherein:

the open die foaming equipment further comprises a support frame and an upper operating platform;

the support frame is erected above the rack, and the upper operating platform is horizontally laid on the top of the support frame; the upper surface of the upper operating platform is provided with a plurality of feeders for providing different materials; the number of the feeders is consistent with that of the feeding pipes in each feeding unit; each feeder is provided with an air inlet, a material inlet and a material outlet which are communicated with each other, and the material outlet is communicated with the rigid pipe section in a connecting way.

10. The open-mold foaming device of claim 9, wherein:

the rigid pipe section comprises a first branch pipe and a second branch pipe, wherein the first branch pipe is positioned on the upper layer operation platform and connected with the feeder, and the second branch pipe and the first branch pipe are integrally bent and formed; the second branch pipe is located on the outer side of the upper operating platform and extends downwards to be connected with the flexible pipe section.

11. Open-die foaming device according to any of claims 1-10, wherein:

the transverse beam is provided with a rack extending along the transverse direction;

the open mould foaming equipment also comprises a plurality of material injection gun driving components which are arranged in one-to-one correspondence with the material injection guns; the material injection gun driving assembly comprises a sliding seat, and a gear, a material injection gun mounting seat and a driving motor which are arranged on the sliding seat; the gear is meshed with the rack, and an output shaft of the driving motor is in transmission connection with the gear so as to drive the gear to rotate and drive the sliding seat to move along the cross beam; the material injection gun is fixedly arranged on the material injection gun mounting seat.

12. Open-die foaming device according to any of claims 1-10, wherein:

two sliding rails are respectively arranged on the opposite side surfaces of the two upright posts and extend along the height direction of the upright posts;

the two ends of the cross beam are respectively in sliding fit with the two sliding rails so as to move up and down along the sliding rails.