CN214000269U

CN214000269U - Full-automatic EVA double-color foaming forming machine

Info

Publication number: CN214000269U
Application number: CN202022363614.XU
Authority: CN
Inventors: 陈小洋; 石鹏涛
Original assignee: JINJIANG BANGDA PLASTIC CO Ltd
Current assignee: JINJIANG BANGDA PLASTIC CO Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-08-20
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a full-automatic EVA double-color foaming forming machine, which comprises an automatic feeding device, a mold closing device, a single-double-color switching device, a whole machine underframe, a hydraulic system and a control system; the mold closing device is fixedly arranged on the chassis of the whole machine; the automatic material distribution and feeding device is arranged in front of the mold closing device; the single-color and double-color switching device is arranged behind the mold closing device. After the technical scheme is adopted, the full-automatic EVA double-color foaming forming machine provided by the utility model can automatically weigh materials with high precision, and overcomes the material weighing error caused by manual error; by adopting the structure that the toothed belt is matched with the linear slide rail, an operator can directly put down a primary raw material only by waiting for the product to be molded and opened beside the foaming molding machine, and the raw material transfer time of the production period is shortened.

Description

Full-automatic EVA double-color foaming forming machine

Technical Field

The utility model relates to a shoemaking field especially relates to a full-automatic double-colored foaming make-up machine of EVA.

Background

At present, most soles, hole shoes and the like are foamed and molded by adopting granular EVA materials, the traditional equipment usually depends on manual weighing and proportioning and then transfers the materials to a foaming molding machine for putting, the labor cost is very high in the mode, formula errors are caused by human errors often, the formula errors often cause batch scrapping of products, and great loss is brought to enterprises. In order to make the production efficiency of the foaming forming machine higher and the product quality more stable, an auxiliary device capable of automatically weighing and delivering raw materials is urgently needed to replace manual weighing and transferring work.

The traditional EVA foaming forming machine is generally simple in structure, mostly adopts an oil cylinder directly connected with an upper template, presses a heated mould through the expansion and contraction of the oil cylinder, and does not have other matching devices; the stroke of the oil cylinder with the structure is often larger, the larger the stroke of the oil cylinder is, the larger the manufacturing difficulty and the cost are, the larger the stroke of the oil cylinder is, the more the EVA foaming forming machine with the traditional structure can only be used for manufacturing single-color products generally, most of matched functions of the EVA foaming forming machine can only be finished manually, along with social development, the living standard is improved, the color is single, the common products cannot meet the requirements of modern people, double-color foaming forming is the requirement of the market for the industry, however, the problems of low yield, high labor cost, unsafe operation personnel and the like exist only in the traditional structure through manual material supplement to realize double-color foaming, and therefore the traditional EVA foaming forming machine is difficult to meet the current market requirements, and the single-double-color switching device is necessary to be equipped for the EVA foaming forming machine.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a full-automatic double-colored foaming make-up machine of EVA.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a full-automatic EVA double-color foaming forming machine structurally comprises an automatic feeding device, a mold closing device, a single-double-color switching device, a whole machine underframe, a hydraulic system and a control system; the mold closing device is fixedly arranged on the chassis of the whole machine; the automatic material distribution and feeding device is arranged in front of the mold closing device; the single-color and double-color switching device is arranged behind the mold closing device.

Preferably, the automatic material distribution and feeding device consists of a material distribution rack, a material distribution component and a material feeding component; the batching component consists of a suction machine, a feeding machine, a weighing hopper and a discharging hopper; the suction machine, the feeding machine, the weighing hopper and the discharging hopper are respectively fixed on the batching frame, the suction machine is arranged at the top of the batching assembly, the discharging opening of the suction machine is arranged above the feeding opening of the feeding machine, and the outlet of the feeding machine is arranged above the feeding opening of the weighing hopper; the discharging hopper is arranged below the discharging hole of the weighing hopper.

Preferably, the feeding machine consists of a receiving hopper, a feeding groove, a vibration frame, a vibration coil, an armature, a damping rubber device, a base plate and a screw rod; the receiving hopper, the feeding trough and the vibrating frame are welded into a whole, and the vibrating coil and the armature are respectively arranged on two opposite inner side surfaces of the vibrating frame; the upper end surfaces of the shock absorption rubber devices are respectively arranged at four corners at the bottom of the vibration rack, and the backing plates are fixed on the lower section of the shock absorption rubber devices and are fixed on the batching rack through the screw rods; the weighing hopper consists of a hopper body, a discharge door, a discharge motor and a weighing sensor; the discharge door is hinged at the discharge opening of the bucket body, and the side surface of the discharge door is connected with a discharge motor; the hopper body is suspended on the batching rack through a weighing sensor; the lower end of the suction machine is fixedly connected with a material guide pipe through a flange; a concave step surface is processed on a flange of the material guide pipe; and a material discharging and drawing plate is inserted on the step surface.

Preferably, the feeding assembly consists of a linear slide rail, a slide block, a feeding bracket, a feeding supporting plate material cup, a driving device and a lifting device; the linear sliding rail is fixedly arranged on the batching rack; the sliding block is fixedly arranged on the lower section of the feeding bracket and is sleeved with the linear sliding rail; the lower section of the feeding bracket is provided with a roller; a plurality of holes for placing material cups are formed in the feeding supporting plate; the driving device consists of a feeding motor, a driving toothed belt wheel, a driven toothed belt wheel, a toothed belt and a connecting piece; a driving toothed belt wheel is sleeved on an output shaft of the feeding motor; the toothed belt is wound on the driving toothed belt wheel and the driven toothed belt wheel; one end of the connecting piece is tightly pressed on the toothed belt, and the other end of the connecting piece is fixedly arranged on the side surface of the feeding bracket; the feeding motor is a stepping motor; the lifting device consists of a lifting frame, a lifting cylinder and a cylinder fixing plate; the lifting cylinders are arranged in pairs, symmetrically arranged on two sides of the linear slide rail and fixed on the batching rack through cylinder fixing plates; the lifting frame is fixedly arranged at the head part of the telescopic rod of the lifting cylinder, and the number of the lifting frame is equal to that of the lifting cylinders; the upper end surface of the lifting frame is also provided with two positioning pins; four positioning holes are also formed in the feeding supporting plate; the positioning pin is matched with the positioning hole in position.

Preferably, the mold closing device consists of an upper mold plate, a middle mold plate, a bottom mold plate, a guide pillar, a mold adjusting assembly, a mold closing assembly, a color separation mold lifting push-pull assembly and a heating and pressurizing assembly; the upper template, the middle template and the bottom template are sequentially distributed from top to bottom; the number of the guide posts is four, and the guide posts respectively penetrate through four corners of the upper template, the middle template and the bottom template; the upper end and the lower end of the guide pillar are provided with threads, and the lower end of the guide pillar is tightly connected with the lower end face of the bottom template through a nut; the die adjusting assembly consists of a hydraulic motor, a driving chain wheel, a driven chain wheel, an internal thread sleeve, a bearing seat and a transmission chain; the hydraulic motor is fixed on the upper end surface of the upper template through the connecting seat; the driving chain wheel is arranged on an output shaft of the hydraulic motor; the driven chain wheel, the internal thread sleeve, the bearing and the bearing seat are four in number and are respectively arranged at the mounting holes of the four guide columns; the internal thread sleeve is in threaded connection with the upper end of the guide pillar; the bearing block is coaxial with the guide pillar and is fixedly connected with the upper end face of the upper template; the bearing is arranged between the internal thread sleeve and the bearing seat; the driven chain wheel is connected with the internal thread sleeve through a key; the driving chain wheel is connected with the four driven chain wheels through a transmission chain.

Preferably, the mold closing assembly consists of a mold closing oil cylinder, a crank arm assembly and a mold opening and closing guide rod; the die closing oil cylinder is inversely arranged in the center of the upper end surface of the upper template; the head of a piston rod of the die assembly oil cylinder is fixedly connected with the middle part of the crank arm component; the upper end of the die opening and closing guide rod is fixedly connected with the middle part of the crank arm assembly, and the lower end of the die opening and closing guide rod is fixedly connected with the center of the upper end surface of the middle die plate; the crank arm assembly consists of a driving arm, a traction arm, a turning arm, a lifting arm, an upper die connecting arm and a middle die connecting arm; the upper end of the upper die connecting arm is fixed on the lower end surface of the upper die plate, and the lower end of the upper die connecting arm is hinged with an upper end hole of the turning arm; the lower end of the middle die connecting arm is fixed on the upper end surface of the middle die plate, one end of the lifting arm is hinged with the upper end of the middle die connecting arm, and the other end of the lifting arm is hinged with the lower end hole of the turning arm; one end of the traction arm is hinged with the driving arm, and the other end of the traction arm is hinged with the middle end hole of the turning arm.

Preferably, the color separation die lifting and pushing assembly consists of a color separation die lifting oil cylinder, a sliding seat, a color separation die bracket, a color separation die pushing and pulling oil cylinder, a supporting rod and a fixed balance surrounding frame; the color separation mold lifting oil cylinder body is fixed on the bottom template; the sliding seats are respectively arranged on two sides of the mold closing device and are respectively sleeved on the two guide posts on the same side; the head of a piston rod of the color separation mold lifting oil cylinder is fixedly connected with the middle part of the sliding seat; the color separation mold bracket is clamped in the sliding seat, and one end of the color separation mold bracket is fixedly connected with the head of a piston rod of the color separation mold push-pull oil cylinder; the sliding seat, the supporting rod and the fixed balance surrounding frame are fixedly connected through screws; the heating and pressurizing assembly consists of an upper heat insulation plate, an upper heating plate, a lower heat insulation plate, a lower base plate and a pressurizing oil cylinder; the upper heat insulation plate is arranged on the lower end face of the middle die plate, the upper heating plate is arranged on the lower end face of the upper heat insulation plate, and the upper heat insulation plate, the middle die plate and the lower heating plate are fixedly connected through screws; the pressurizing oil cylinder is fixedly arranged on the upper end surface of the bottom template; the lower base plate is fixedly arranged at the head of a piston cylinder of the booster oil cylinder; the lower heat insulation plate is arranged on the upper end face of the lower base plate, the lower heating plate is arranged on the upper end face of the lower heat insulation plate, and the lower heat insulation plate, the lower base plate and the lower heating plate are fixedly connected through screws.

Preferably, the device also comprises a matched mold material blocking assembly and a safety pin assembly; the die assembly material blocking component consists of a die assembly material blocking oil cylinder and an ejector pin; the die assembly material blocking oil cylinder is fixedly arranged on the upper end surface of the middle template; the safety pin assembly consists of a safety pin, a safety cylinder, a safety support and a safety hanging plate; the safety support is fixedly arranged on the lower end face of the upper template; the safety support is provided with a round hole, and a self-lubricating bearing is sleeved in the round hole; the safety cylinder is fixedly arranged on the side surface of the safety support; the safety pin is sleeved on the inner ring of the self-lubricating bearing, and the end surface of the safety pin is fixedly connected with the head of the piston rod of the safety cylinder; the safety hanging plate is fixedly arranged on the upper end face of the middle template.

Preferably, the single-color and double-color switching device consists of a material shooting component, a lifting component and a translation component; the lifting assembly consists of a moving seat upper plate, a moving seat bottom plate, a lifting guide sleeve, an I-shaped frame, a lifting guide rod and a lifting oil cylinder; the lifting guide sleeve is sleeved in the mounting hole of the moving seat bottom plate, the cylinder body of the lifting oil cylinder is fixedly mounted on the lower end face of the moving seat bottom plate, and the piston rod of the lifting oil cylinder penetrates through the moving seat bottom plate and is fixedly connected with the moving seat upper plate; the lifting guide rod is sleeved in the lifting guide sleeve, and the top of the lifting guide rod is fixedly connected with the lower end face of the upper plate of the moving seat; the upper end surface of the I-shaped frame is fixedly connected with the lower end surface of the moving seat bottom plate; the translation assembly consists of a shifting base frame, a translation slide rail, a translation slide block, a translation driving motor, a translation driving gear and a translation rack; the translation sliding block is clamped on the translation sliding rail, and the upper end face of the translation sliding block is fixedly arranged on the lower end face of the I-shaped frame; the lower end face of the translation sliding rail is fixed on the movable seat rack; the translation rack is fixed on the side surface of the movable seat rack and is parallel to the translation sliding rail; the translation driving motor is fixedly arranged on the lower end face of the base plate of the moving seat; the translation driving gear is fixedly connected with an output shaft of the translation driving motor through a key; the translation driving gear is meshed with the translation rack.

Preferably, the injection assembly consists of a material blocking part, a feeding plasticizing part, an injection part and an advancing and retreating part; the material blocking part is composed of a material blocking oil cylinder and a material blocking needle; the feeding plasticizing part is composed of a feeding barrel, a feeding hopper and a feeding hopper mounting plate; the injection part is composed of an injection nozzle, an injection head, an injection screw, an injection cylinder, a transmission main shaft, an injection motor seat and an injection motor; the injection head is fixedly arranged at the front end of the charging barrel; the injection nozzle is arranged on a discharge hole of the injection head; the material blocking needle is fixedly arranged at the head of a piston rod of the material blocking oil cylinder, penetrates through the injection head and is coaxial with a discharge hole of the injection head; the upper end of the feeding hopper is fixed on the feeding hopper mounting plate, and the lower end of the feeding hopper is fixedly connected with the feeding barrel; the injection motor is fixedly arranged on the injection motor seat, and an output shaft of the injection motor is connected with the transmission main shaft; the transmission main shaft is arranged in the injection cylinder and is coaxially connected with the injection screw; the driving and reversing part is composed of a driving and reversing oil cylinder, a guide rod seat, a driving and reversing seat guide rod and a driving and reversing seat box body; the guide rod seat is fixedly arranged on the upper end surface of the upper plate of the moving seat; the advancing and retreating seat guide rod is sleeved on the guide rod seat; the driving and reversing seat box body is provided with a sliding hole, and the sliding hole is in sliding connection with a driving and reversing seat guide rod through an embedded self-lubricating bearing; the feeding base oil cylinder is fixedly arranged at the tail part of the material blocking oil cylinder; the seat withdrawing oil cylinder is fixedly connected with the guide rod seat; the injection cylinder is arranged in the advancing and retreating seat box body; the injection motor seat is arranged on the side surface of the advancing and retreating seat box body; the head of the injection screw is provided with a torpedo head, a non-return ring and a non-return cushion; a plurality of groups of electric heating rings are arranged on the outer ring of the charging barrel; the lifting assembly further comprises a supporting bolt, a lifting supporting rod, a lifting supporting cushion block, a supporting sliding plate, a supporting cross rod and a cushion block push-pull oil cylinder; the supporting bolt is in threaded connection with the upper end face of the base plate of the shifting seat and is tightened by a nut; the supporting sliding plates are connected through a supporting cross rod; the cylinder body of the cushion block push-pull oil cylinder is fixedly arranged on the upper end surface of the shifting base plate, and the head of a piston rod of the cushion block push-pull oil cylinder is fixedly connected with the middle part of the supporting cross rod; the lifting support cushion block is fixedly arranged on the support sliding plate; the upper end of the lifting support rod is fixed on the upper plate of the moving seat, and the lower end of the lifting support rod penetrates through the bottom plate of the moving seat.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

1. the utility model provides a pair of double-colored foaming make-up machine of full-automatic EVA, the high accurate automatic title material has overcome the title material mistake that artifical error caused.

2. The utility model provides a pair of full-automatic double-colored foaming make-up machine of EVA adopts toothed belt and linear slide rail complex structure, makes the operation workman only need wait for the product shaping die sinking back on the foaming make-up machine is other, just can directly throw down a raw materials, has shortened production cycle's raw materials transit time.

3. The utility model provides a pair of double-colored foaming make-up machine of full-automatic EVA increases the crank arm subassembly between compound die hydro-cylinder and well mould, can reduce the stroke of compound die hydro-cylinder greatly under the unchangeable circumstances of well mould promotion distance, reduces the preparation degree of difficulty and cost.

4. The utility model provides a pair of double-colored foaming make-up machine of full-automatic EVA increases the safety pin subassembly, and it is that when the workman maintains etc. operation under the die sinking state, the safety pin inserts among the safety link plate, ensures that well template can not cause the injury to the workman because of the maloperation down.

5. The utility model provides a full-automatic EVA double-color foaming forming machine, which adopts a material injection component to ensure that the EVA foaming forming machine can automatically produce double-color products; when the single-color and double-color switching device is not lifted, the whole weight is supported by the supporting bolt; after lifting, the lifting support rod and the lifting support cushion block below the lifting support rod support the whole weight together, so that the oil cylinder is ensured to be stressed only in the action process, and the service life of the oil cylinder is prevented from being shortened due to long-time stress.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural view of a full-automatic EVA two-color foaming molding machine of the present invention;

FIG. 2 is a schematic view of the automatic feeding and dispensing device of the full-automatic EVA two-color foaming molding machine of the present invention;

FIG. 3 is a schematic structural view of an automatic feeding and dispensing device of a full-automatic EVA two-color foaming molding machine of the present invention;

FIG. 4 is a schematic structural view of a batching assembly of the full-automatic EVA double-color foaming molding machine of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3;

fig. 6 is a schematic structural view of a mold closing device of the full-automatic EVA double-color foaming molding machine of the present invention;

FIG. 7 is a side view of a mold clamping device of the full-automatic EVA two-color foaming molding machine of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 6 at B;

fig. 9 is a state diagram of the crank arm assembly after lifting the template in the mold clamping device of the full-automatic EVA two-color foaming molding machine of the present invention;

fig. 10 is a schematic structural view of a single-double color switching device of a full-automatic EVA double-color foaming molding machine of the present invention;

fig. 11 is a schematic structural view of a lifting assembly and a translation assembly of the full-automatic EVA double-color foaming molding machine of the present invention;

fig. 12 is the utility model relates to a full-automatic EVA double-colored foaming make-up machine penetrate the structural schematic diagram of material subassembly.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

Referring to fig. 1 to 12, one structure of the device comprises an automatic material matching and feeding device, a mold closing device, a single-color and double-color switching device, a whole chassis 4, a hydraulic system 5 and a control system 6; the mold closing device is fixedly arranged on the chassis 4 of the whole machine; the automatic material matching and feeding device is arranged in front of the mold closing device; the single-double color switching device is arranged behind the mold closing device.

Furthermore, the automatic material distribution and feeding device consists of a material distribution rack 11, a material distribution component and a material feeding component; the batching component consists of a suction machine 121, a feeding machine, a weighing hopper and a discharging hopper 124; the suction machine 121, the feeding machine, the weighing hopper and the discharging hopper 124 are respectively fixed on the batching rack 11, the suction machine 121 is arranged at the top of the batching assembly, the discharging opening of the suction machine is arranged above the feeding opening of the feeding machine, and the outlet of the feeding machine is arranged above the feeding opening of the weighing hopper; the discharge hopper 124 is arranged below the discharge port of the weighing hopper. By adopting the structure, the material can be weighed automatically with high precision, and the material weighing error caused by manual error can be overcome.

Further, the feeding machine consists of a receiving hopper 1221, a feeding trough 1222, a vibrating frame 1223, a vibrating coil, an armature 1225, a shock-absorbing rubber device 1226, a backing plate 1227 and a screw 1228; the receiving hopper 1221, the feeding trough 1222 and the vibrating frame 1223 are welded into a whole, and the vibrating coil and the armature 1225 are respectively installed on two opposite inner side surfaces of the vibrating frame 1223; the upper end faces of the shock absorbers 1226 are respectively arranged at four corners at the bottom of the vibrating frame 1223, and the backing plates 1227 are fixed to the lower section of the shock absorbers 1226 and fixed to the batching frame 11 through screws 1228; the weighing hopper consists of a hopper body 1231, a discharge door 1232, a discharge motor and a weighing sensor 1234; the discharge door 1232 is hinged at the discharge opening of the hopper body 1231, and the side surface of the discharge door is connected with a discharge motor; the hopper body 1231 is suspended on the batching frame 11 through the weighing sensor 1234; the lower end of the suction machine 121 is fixedly connected with a material guide pipe 125 through a flange; a flange of the material guide pipe 125 is provided with a concave step surface; a discharging drawing plate 126 is inserted on the step surface.

Further, the feeding assembly consists of a linear slide rail 131, a slide block 132, a feeding bracket 133, a feeding supporting plate 134, a material cup 135, a driving device and a lifting device; the linear slide rail 131 is fixedly arranged on the batching rack 11; the slide block 132 is fixedly arranged on the lower section of the feeding bracket 133 and is sleeved with the linear slide rail 131; the lower section of the feeding bracket 133 is provided with a roller 138; the feeding supporting plate 134 is provided with a plurality of holes for placing the material cups 135; the driving device consists of a feeding motor 1361, a driving toothed belt wheel 1362, a driven toothed belt wheel 1363, a toothed belt 1364 and a connecting piece; an output shaft of the feeding motor 1361 is sleeved with a driving toothed belt wheel 1362; a toothed belt 1364 is wound around the driving toothed pulley 1362 and the driven toothed pulley 1363; one end of the connecting piece is tightly pressed on the toothed belt 1364, and the other end of the connecting piece is fixedly arranged on the side surface of the feeding bracket 133; the feeding motor 1361 is a stepping motor; the lifting device consists of a lifting frame 1371, a lifting cylinder 1372 and a cylinder fixing plate 1373; the lifting cylinders 1372 are arranged in pairs, symmetrically arranged on two sides of the linear slide rail 131 and fixed on the batching frame 11 through cylinder fixing plates 1373; the lifting frame 1371 is fixedly arranged at the head part of the telescopic rod of the lifting cylinder 1372, and the number of the lifting frame is equal to that of the lifting cylinder 1372; the upper end surface of the lifting frame 1371 is also provided with two positioning pins 1374; four positioning holes are also formed in the feeding supporting plate 134; the positioning pin 1374 is matched with the positioning hole in position. By adopting the structure and adopting the structure that the toothed belt is matched with the linear slide rail, an operator can directly put down a primary raw material only by waiting for the product to be molded and opened beside the foaming molding machine, and the raw material transfer time of the production period is shortened.

Furthermore, the mold closing device consists of an upper mold plate 21, a middle mold plate 22, a bottom mold plate 23, a guide post 24, a mold adjusting component, a mold closing component, a color separation mold lifting push-pull component and a heating and pressurizing component; the upper template 21, the middle template 22 and the bottom template 23 are sequentially distributed from top to bottom; four guide posts 24 respectively penetrate through four corners of the upper template 21, the middle template 22 and the bottom template 23; the upper end and the lower end of the guide post 24 are provided with threads, and the lower end of the guide post is tightly combined with the lower end surface of the bottom template 23 through a nut 291; the mold adjusting assembly consists of a hydraulic motor 251, a driving chain wheel 252, a driven chain wheel 253, an internal thread sleeve 254, a bearing 255, a bearing seat 256 and a transmission chain; the hydraulic motor 251 is fixed on the upper end surface of the upper template 21 through a connecting seat; the driving sprocket 252 is mounted on the output shaft of the hydraulic motor 251; the driven chain wheel 253, the internal thread sleeve 254, the bearing 255 and the bearing seat 256 are four in number and are respectively arranged at the mounting holes of the four guide posts 24; the internal thread sleeve 254 is in threaded connection with the upper end of the guide post 24; the bearing seat 256 is coaxial with the guide post 24 and is fixedly connected with the upper end face of the upper template 21; the bearing 255 is mounted between the internally threaded sleeve 254 and the bearing seat 256; the driven sprocket 253 is connected with the internal thread sleeve 254 through a key; the driving sprocket 252 is connected with four driven sprockets 253 through a transmission chain.

Further, the mold closing assembly consists of a mold closing cylinder 261, a crank arm assembly and a mold opening and closing guide rod 263; the mold closing cylinder 261 is inversely installed at the center of the upper end face of the upper mold plate 21; the head of a piston rod of the die assembly oil cylinder 261 is fixedly connected with the middle part of the crank arm assembly; the upper end of the mold opening and closing guide rod 263 is fixedly connected with the middle part of the crank arm assembly, and the lower end is fixedly connected with the center of the upper end surface of the middle template 22; the crank arm assembly consists of a driving arm 2621, a traction arm 2622, a turning arm 2623, a lifting arm 2624, an upper die connecting arm 2625 and a middle die connecting arm 2626; the upper end of the upper die connecting arm 2625 is fixed on the lower end surface of the upper die plate 21, and the lower end of the upper die connecting arm 2625 is hinged with an upper end hole of the turning arm 2623; the lower end of the middle mold connecting arm 2626 is fixed on the upper end surface of the middle mold plate 22, one end of the lifting arm 2624 is hinged with the upper end of the middle mold connecting arm 2626, and the other end is hinged with the lower end hole of the turning arm 2623; one end of the pulling arm 2622 is hinged to the driving arm 2621, and the other end is hinged to the middle end hole of the crank arm 2623. By adopting the structure, namely, the crank arm component is added between the die closing oil cylinder and the middle die, the stroke of the die closing oil cylinder can be greatly reduced under the condition that the lifting distance of the middle die is not changed, and the manufacturing difficulty and cost are reduced.

Further, the color separation mold lifting push-pull assembly consists of a color separation mold lifting oil cylinder 271, a sliding seat 272, a color separation mold bracket 273, a color separation mold push-pull oil cylinder 274, a supporting rod 275 and a fixed balance surrounding frame 276; the color separation die lifting oil cylinder 271 is fixed on the bottom template 23; the sliding base 272 is respectively arranged on two sides of the mold closing device and is respectively sleeved on the two guide posts 24 on the same side; the head of a piston rod of the color separation mold lifting oil cylinder 271 is fixedly connected with the middle part of the sliding seat 272; the color separation mold bracket 273 is clamped in the sliding seat 272, and one end of the color separation mold bracket is fixedly connected with the head of a piston rod of the color separation mold push-pull oil cylinder 274; the sliding seat 272, the supporting rod 275 and the fixed balance surrounding frame 276 are fixedly connected through screws; the heating and pressurizing assembly consists of an upper heat insulation plate 281, an upper heating plate 282, a lower heating plate 283, a lower heat insulation plate 284, a lower cushion plate 285 and a pressurizing oil cylinder 286; the upper heat insulation plate 281 is arranged on the lower end face of the middle template 22, the upper heating plate 282 is arranged on the lower end face of the upper heat insulation plate 281, and the upper heat insulation plate, the lower heat insulation plate and the upper heating plate are fixedly connected through screws; the pressurizing oil cylinder 286 is fixedly arranged on the upper end surface of the bottom template 23; the lower base plate 285 is fixedly arranged at the head of a piston cylinder of the booster oil cylinder 286; the lower heat insulation plate 284 is disposed on the upper end surface of the lower pad plate 285, and the lower heating plate 283 is disposed on the upper end surface of the lower heat insulation plate 284, which are fixedly connected by screws. By adopting the structure, the color separation die lifting push-pull assembly is used, so that the die closing device can produce double-color products.

Further, the device also comprises a mold closing material blocking assembly and a safety pin assembly; the die assembly material blocking component consists of a die assembly material blocking oil cylinder 292 and a thimble 293; the mold closing material blocking oil cylinder 292 is fixedly arranged on the upper end surface of the middle template 22; the safety pin assembly consists of a safety pin 2101, a safety cylinder 2102, a safety support 2103 and a safety hanging plate 2104; the safety support 2103 is fixedly arranged on the lower end face of the upper template 21; a round hole is formed in the safety support 2103, and a self-lubricating bearing 2105 is sleeved in the round hole; the safety cylinder 2102 is fixedly arranged on the side surface of the safety support 2103; the safety pin 2101 is sleeved on the inner ring of the self-lubricating bearing 2105, and the end surface of the safety pin 2101 is fixedly connected with the head of a piston rod of the safety cylinder 2102; the safety hanging plate 2104 is fixedly installed on the upper end surface of the middle formwork 22. Adopt this structure, increase the safety pin subassembly promptly, it is that the operation such as maintenance is carried out to the workman under the die sinking state, during the safety pin inserted the safety hanging plate, ensured that well template can not cause the injury to the workman because of maloperation is down.

Furthermore, the single-color and double-color switching device consists of a material shooting component, a lifting component and a translation component; the lifting assembly consists of a moving seat upper plate 321, a moving seat bottom plate 322, a lifting guide sleeve 323, an I-shaped frame 324, a lifting guide rod 325 and a lifting oil cylinder 326; the lifting guide sleeve 323 is sleeved in the mounting hole of the moving seat bottom plate 322, the cylinder body of the lifting oil cylinder 326 is fixedly mounted on the lower end face of the moving seat bottom plate 322, and the piston rod of the lifting oil cylinder passes through the moving seat bottom plate 322 and is fixedly connected with the moving seat upper plate 321; the lifting guide rod 325 is sleeved in the lifting guide sleeve 323, and the top of the lifting guide rod is fixedly connected with the lower end face of the moving seat upper plate 321; the upper end surface of the I-shaped frame 324 is fixedly connected with the lower end surface of the shifting base plate 322; the translation assembly consists of a translation rack 331, a translation slide rail 332, a translation slide block 333, a translation driving motor 334, a translation driving gear 335 and a translation rack 336; the translation sliding block 333 is clamped on the translation sliding rail 332, and the upper end surface of the translation sliding block is fixedly arranged on the lower end surface of the I-shaped frame 324; the lower end surface of the translation slide rail 332 is fixed on the pedestal moving frame 331; the translation rack 336 is fixed on the side surface of the shifting frame 331 and is parallel to the translation slide rail 332; the translation driving motor 334 is fixedly installed on the lower end surface of the moving seat bottom plate 322; the translation driving gear 335 is fixedly connected with an output shaft of the translation driving motor 334 through a key; the translation pinion gear 335 intermeshes with the translation rack gear 336. By adopting the structure, namely the lifting assembly and the translation assembly are combined, the single-double color switching device can be matched with the EVA foaming forming machine with a plurality of stations.

Furthermore, the injection assembly consists of a material blocking part, a feeding plasticizing part, an injection part and an advancing and retreating part; the material blocking part is composed of a material blocking oil cylinder 3111 and a material blocking needle; the feeding plasticizing part is composed of a feeding barrel 3121, a feeding hopper 3122 and a feeding hopper mounting plate 3123; the injection part is composed of an injection nozzle 3131, an injection head 3132, an injection screw 3133, an injection cylinder 3134, a transmission main shaft 3135, an injection motor seat 3136 and an injection motor 3137; the injection head 3132 is fixedly arranged at the front end of the charging barrel 3121; injection nozzle 3131 is mounted on the discharge hole of injection head 3132; the material blocking needle is fixedly arranged at the head of a piston rod of the material blocking oil cylinder 3111, penetrates through the injection head 3132 and is coaxial with a discharge hole of the injection head 3132; the upper end of the feeding hopper 3122 is fixed on the feeding hopper mounting plate 3123, the lower end is fixedly connected with the feeding barrel 3121; injection motor 3137 is fixedly mounted on injection motor seat 3136, and its output shaft is connected to main drive shaft 3135; the driving main shaft 3135 is disposed in the injection cylinder 3134 and coaxially connected to the injection screw 3133; the advancing and retreating part is composed of an advancing seat oil cylinder 3141, a retreating seat oil cylinder 3142, a guide rod seat 3143, an advancing and retreating seat guide rod 3144 and an advancing and retreating seat box 3145; the guide rod seat 3143 is fixedly arranged on the upper end surface of the upper plate 321 of the movable seat; the advancing and retreating seat guide rod 3144 is sleeved on the guide rod seat 3143; a sliding hole is formed in the advance and retreat seat box body 3145 and is in sliding connection with the advance and retreat seat guide rod 3144 through an embedded self-lubricating bearing; the seat feeding oil cylinder 3141 is fixedly arranged at the tail part of the material blocking oil cylinder 3111; the seat withdrawing oil cylinder 3142 is fixedly connected with the guide rod seat 3143; the injection cylinder 3134 is arranged in the advancing and retreating seat box body 3145; the injection motor seat 3136 is mounted on the side surface of the advancing and retreating seat box 3145; the head of the injection screw 3133 is provided with a torpedo head, a non-return ring and a non-return pad; a plurality of groups of electric heating rings are arranged on the outer ring of the feeding cylinder 3121; the lifting assembly further comprises a support bolt 3271, a lifting support rod 3272, a lifting support cushion block 3273, a support sliding plate 3274, a support cross bar 3275 and a cushion block push-pull oil cylinder 3276; the support bolt 3271 is in threaded connection with the upper end face of the base plate 322 of the shifting seat and is tightened by a nut; the support sliding plates 3274 are connected through a support cross bar 3275; the cylinder body of the cushion block push-pull oil cylinder 3276 is fixedly arranged on the upper end surface of the shifting base plate 322, and the head part of a piston rod of the cushion block push-pull oil cylinder 3276 is fixedly connected with the middle part of the supporting cross rod 3275; the lifting support cushion block 3273 is fixedly arranged on the support sliding plate 3274; the upper end of the lifting support rod 3272 is fixed to the upper plate 321 of the moving seat, and the lower end thereof passes through the bottom plate 322 of the moving seat. By adopting the structure and the material injection assembly, the EVA foaming molding machine can automatically produce double-color products/2, and the whole weight is supported by the supporting bolt when the single-double-color switching device is not lifted; after lifting, the lifting support rod and the lifting support cushion block below the lifting support rod support the whole weight together, so that the oil cylinder is ensured to be stressed only in the action process, and the service life of the oil cylinder is prevented from being shortened due to long-time stress.

The working principle is as follows:

the full-automatic EVA double-color foaming forming machine controls the whole set of equipment by a control system 6; the hydraulic system 5 provides power for all oil cylinders and hydraulic motors in the whole set of equipment; an air source system consisting of an air storage tank and an air compressor provides power for all air cylinders in the whole set of equipment; all motors need to be powered on.

The working principle of the automatic material distribution and feeding device is as follows:

during the production of the device, the suction machine 121 sucks the raw material, and the raw material is fed into the feeding machine from the discharge port of the suction machine through the material guide pipe 125, the vibration coil on the vibration rack 1223 of the feeding machine is repeatedly powered on and powered off to generate and eliminate the pulse attraction force between the vibration coil and the armature 1225, so that the feeding trough 1222 performs reciprocating motion to realize the feeding of the symmetrical measuring hopper. After the weighing sensor 1234 judges that the weighing hopper is filled with the required weight, a signal is fed back to the control system, the feeder is stopped, the emptying motor of the weighing hopper is started, the emptying door 1232 is opened, so that the raw material in the weighing hopper is thrown into the material cup 135 waiting under the emptying hopper 124 through the emptying hopper 124, the material cup 135 is clamped in the feeding support plate 134, after the material cup 135 is filled with the raw material, the feeding motor 1361 drives the driving toothed belt 1362 to rotate, the feeding bracket 133 is further pulled to move forward along the linear slide rail through the toothed belt 1364, so that the next material cup 135 moves to the position under the emptying port of the weighing hopper to wait for material receiving, and the operation is repeated, after the material cups 135 on the feeding support plate 134 are all subjected to material receiving, the feeding motor 1361 is started again, the feeding bracket 133 is driven to drive the feeding support plate 134 and the material cups 135 on the feeding support plate to move to the station in front of the EVA foaming forming machine, the lifting cylinder 1372 arranged on the station extends out, the positioning pin 1374 on the lifting frame 1371 is inserted into the positioning hole on the feeding supporting plate 134, so as to lift the feeding supporting plate 134 and the material cup 135 thereon, and when the EVA foaming molding machine needs to add raw materials, an operator pours the raw materials 135 in the material cup into the mold.

The working principle of the mold closing device is as follows:

before the device is produced, the upper die of the die is fixed on the lower end surface of the upper heating plate 282, and the lower die of the die is fixed on the upper end surface of the lower heating plate 283; when the device produces a monochromatic product, the upper heating plate 282 and the lower heating plate 283 are both electrified to heat a die, and the die closing oil cylinder 261 pushes the crank arm assembly to be unfolded and pushes the middle die plate 22 to move downwards to close the die; the pressurizing oil cylinder 286 pushes the lower backing plate 285 to pressurize, so that the raw materials in the die are foamed in the heating and pressurizing environment.

When the equipment produces a bicolor product, the hydraulic motor 251 drives the driving chain wheel 252 to rotate, and drives the driven chain wheel 253 to rotate through a chain, so that the parts between the upper template 21 and the middle template 22 are driven to move upwards integrally through the threaded connection between the internal thread sleeve 254 and the guide post 24, and a space is reserved for the inlet and outlet of the color separation mold; the color separation mold placed on the color separation mold bracket 273 enters between the upper mold and the lower mold under the pushing of the color separation mold push-pull oil cylinder 274, the upper heating plate 282 and the lower heating plate 283 are electrified to heat the mold, and the mold closing oil cylinder 261 pushes the crank arm assembly to expand to push the middle mold plate 22 to move downwards for mold closing; after the die is closed, the color separation die is pulled out by the color separation die push-pull oil cylinder 274, and the pressurizing oil cylinder 286 pushes the lower backing plate 285 to pressurize, so that the raw materials in the die are foamed in a heating and pressurizing environment.

The working principle of the single-color and double-color switching device is as follows:

when the device is used, the translation driving motor 334 drives the translation driving gear 335 to rotate, the translation driving gear 335 is meshed with the translation rack 336 to drive the whole of the shift base plate 322 and parts thereon to do linear motion along the translation sliding rail 332, and when the shift base plate moves to a target station, the translation driving motor 334 stops; then, the piston rod of the lifting cylinder 326 extends out to push the moving seat upper plate 321 and the components thereon to move upwards integrally, the injection nozzle is aligned with the middle layer injection channel of the EVA foam molding machine mold after lifting, at this time, the piston rod of the cushion block push-pull cylinder 3276 retracts to drive the lifting support cushion block 3273 on the support sliding plate 3274 to slide to the lower part of the lifting support rod 3272, then the lifting cylinder 326 releases the pressure, and the whole weight of the moving seat upper plate 321 and the components thereon is supported by the lifting support rod 3272 and the lifting support cushion block 3273 arranged below the lifting support cylinder 3274.

When the material injection action is carried out, a piston rod of the seat-entering oil cylinder 3141 extends out to prop against the rack, and the whole material injection assembly is reacted to move forward until the injection nozzle 3131 is close to a middle layer material injection channel of the EVA foaming forming machine mold; a piston rod of the material blocking oil cylinder 3111 pulls the material blocking needle to retract, so that a material channel from the inside of the injection head 3132 to the injection nozzle 3131 is smooth; injection motor 3137 drives drive spindle 3135 and thus injection screw 3133; the raw material enters a feeding barrel 3121 from a feeding hopper 3122, and is filled forwards under the action of an injection screw 3133, the raw material becomes a fluid state under the heating of an electric heating ring, and is ejected into a middle layer ejection channel of a mold through an ejection channel in an injection head 3132 and an injection nozzle 3131 under the action of an injection screw 3133; after the material injection is completed, the piston rod of the seat withdrawing oil cylinder 3142 extends out to push the seat withdrawing and advancing box 3145 and the whole parts on the seat withdrawing and advancing box 3144 to move backwards along the seat withdrawing and advancing guide rod 3144, so that the injection nozzle 3131 is separated from the middle layer material injection channel of the mold.

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 full-automatic EVA double-color foaming forming machine is characterized by comprising an automatic feeding device, a mold closing device, a single-double color switching device, a whole machine underframe (4), a hydraulic system (5) and a control system (6); the mold closing device is fixedly arranged on the chassis (4) of the whole machine; the automatic material distribution and feeding device is arranged in front of the mold closing device; the single-color and double-color switching device is arranged behind the mold closing device.

2. The full-automatic EVA double-color foaming molding machine according to claim 1, characterized in that: the automatic material distribution and feeding device consists of a material distribution rack (11), a material distribution component and a material feeding component; the batching component consists of a suction machine (121), a feeding machine, a weighing hopper and a discharging hopper (124); the suction machine (121), the feeding machine, the weighing hopper and the discharging hopper (124) are respectively fixed on the batching rack (11), the suction machine (121) is arranged at the top of the batching assembly, the discharging opening of the suction machine is arranged above the feeding opening of the feeding machine, and the outlet of the feeding machine is arranged above the feeding opening of the weighing hopper; the discharging hopper (124) is arranged below the discharging port of the weighing hopper.

3. The full-automatic EVA double-color foaming molding machine according to claim 2, characterized in that: the feeding machine consists of a receiving hopper (1221), a feeding trough (1222), a vibrating frame (1223), a vibrating coil, an armature iron (1225), a damping rubber device (1226), a backing plate (1227) and a screw rod (1228); the receiving hopper (1221), the feeding trough (1222) and the vibrating frame (1223) are welded into a whole, and the vibrating coil and the armature (1225) are respectively installed on two opposite inner side surfaces of the vibrating frame (1223); the upper end faces of the shock-absorbing rubber devices (1226) are respectively arranged at four corners of the bottom of the vibration rack (1223), and the backing plates (1227) are fixed on the lower section of the shock-absorbing rubber devices (1226) and are fixed on the batching rack (11) through the screw rods (1228); the weighing hopper consists of a hopper body (1231), a discharge door (1232), a discharge motor and a weighing sensor (1234); the discharge door (1232) is hinged to the discharge opening of the hopper body (1231), and the side surface of the discharge door is connected with a discharge motor; the hopper body (1231) is suspended on the batching rack (11) through a weighing sensor (1234); the lower end of the suction machine (121) is fixedly connected with a material guide pipe (125) through a flange; a flange of the material guide pipe (125) is provided with a concave step surface; a discharging drawing plate (126) is inserted on the step surface.

4. The full-automatic EVA double-color foaming molding machine according to claim 2, characterized in that: the feeding assembly consists of a linear slide rail (131), a slide block (132), a feeding bracket (133), a feeding supporting plate (134), a material cup (135), a driving device and a lifting device; the linear sliding rail (131) is fixedly arranged on the batching rack (11); the sliding block (132) is fixedly arranged on the lower section of the feeding bracket (133) and is sleeved with the linear sliding rail (131); the lower section of the feeding bracket (133) is provided with a roller (138); a plurality of holes for placing the material cups (135) are formed in the feeding supporting plate (134); the driving device consists of a feeding motor (1361), a driving toothed belt wheel (1362), a driven toothed belt wheel (1363), a toothed belt (1364) and a connecting piece; an output shaft of the feeding motor (1361) is sleeved with a driving toothed belt wheel (1362); the toothed belt (1364) is wound on the driving toothed belt wheel (1362) and the driven toothed belt wheel (1363); one end of the connecting piece is tightly pressed on the toothed belt (1364), and the other end of the connecting piece is fixedly arranged on the side surface of the feeding bracket (133); the feeding motor (1361) is a stepping motor; the lifting device consists of a lifting frame (1371), a lifting cylinder (1372) and a cylinder fixing plate (1373); the lifting cylinders (1372) are arranged in pairs, symmetrically arranged on two sides of the linear slide rail (131) and fixed on the batching rack (11) through cylinder fixing plates (1373); the lifting frame (1371) is fixedly arranged at the head part of the telescopic rod of the lifting cylinder (1372), and the number of the lifting frame is equal to that of the lifting cylinder (1372); the upper end surface of the lifting frame (1371) is also provided with two positioning pins (1374); four positioning holes are also formed in the feeding supporting plate (134); the positioning pin (1374) is matched with the positioning hole in position.

5. The full-automatic EVA double-color foaming molding machine according to claim 1, characterized in that: the mold closing device consists of an upper mold plate (21), a middle mold plate (22), a bottom mold plate (23), a guide post (24), a mold adjusting component, a mold closing component, a color separation mold lifting push-pull component and a heating and pressurizing component; the upper template (21), the middle template (22) and the bottom template (23) are sequentially distributed from top to bottom; the number of the guide posts (24) is four, and the guide posts respectively penetrate through four corners of the upper template (21), the middle template (22) and the bottom template (23); the upper end and the lower end of the guide post (24) are provided with threads, and the lower end of the guide post is tightly connected with the lower end surface of the bottom template (23) through a nut (291); the die adjusting assembly consists of a hydraulic motor (251), a driving chain wheel (252), a driven chain wheel (253), an internal thread sleeve (254), a bearing (255), a bearing seat (256) and a transmission chain; the hydraulic motor (251) is fixed on the upper end surface of the upper template (21) through a connecting seat; the driving chain wheel (252) is arranged on an output shaft of the hydraulic motor (251); the driven chain wheel (253), the internal thread sleeve (254), the bearing (255) and the bearing seat (256) are four in number and are respectively arranged at the mounting holes of the four guide columns (24); the internal thread sleeve (254) is in threaded connection with the upper end of the guide post (24); the bearing seat (256) is coaxial with the guide pillar (24) and is fixedly connected with the upper end face of the upper template (21); the bearing (255) is arranged between the internal thread sleeve (254) and the bearing seat (256); the driven chain wheel (253) is connected with the internal thread sleeve (254) through a key; the driving chain wheel (252) is connected with the four driven chain wheels (253) through a transmission chain.

6. The full-automatic EVA double-color foaming molding machine according to claim 5, characterized in that: the mold closing assembly consists of a mold closing oil cylinder (261), a crank arm assembly and a mold opening and closing guide rod (263); the die closing oil cylinder (261) is inversely arranged at the center of the upper end surface of the upper template (21); the head of a piston rod of the die closing oil cylinder (261) is fixedly connected with the middle part of the crank arm assembly; the upper end of the die opening and closing guide rod (263) is fixedly connected with the middle part of the crank arm component, and the lower end of the die opening and closing guide rod is fixedly connected with the center of the upper end surface of the middle template (22); the crank arm assembly consists of a driving arm (2621), a traction arm (2622), a turning arm (2623), a lifting arm (2624), an upper die connecting arm (2625) and a middle die connecting arm (2626); the upper end of the upper die connecting arm (2625) is fixed on the lower end surface of the upper die plate (21), and the lower end of the upper die connecting arm is hinged with an upper end hole of the turning arm (2623); the lower end of the middle die connecting arm (2626) is fixed on the upper end surface of the middle die plate (22), one end of the lifting arm (2624) is hinged with the upper end of the middle die connecting arm (2626), and the other end of the lifting arm is hinged with the lower end hole of the turning arm (2623); one end of the traction arm (2622) is hinged with the driving arm (2621), and the other end of the traction arm is hinged with a middle end hole of the turning arm (2623).

7. The full-automatic EVA double-color foaming molding machine according to claim 5, characterized in that: the color separation mold lifting push-pull assembly consists of a color separation mold lifting oil cylinder (271), a sliding seat (272), a color separation mold bracket (273), a color separation mold push-pull oil cylinder (274), a supporting rod (275) and a fixed balance surrounding frame (276); the color separation mold lifting oil cylinder (271) body is fixed on the bottom template (23); the sliding seats (272) are respectively arranged on two sides of the mold closing device and are respectively sleeved on the two guide columns (24) on the same side; the head of a piston rod of the color separation die lifting oil cylinder (271) is fixedly connected with the middle part of the sliding seat (272); the color separation mold bracket (273) is clamped in the sliding seat (272), and one end of the color separation mold bracket is fixedly connected with the head of a piston rod of the color separation mold push-pull oil cylinder (274); the sliding seat (272), the supporting rod (275) and the fixed balance surrounding frame (276) are fixedly connected through screws; the heating and pressurizing assembly consists of an upper heat insulation plate (281), an upper heating plate (282), a lower heating plate (283), a lower heat insulation plate (284), a lower cushion plate (285) and a pressurizing oil cylinder (286); the upper heat insulation plate (281) is arranged on the lower end face of the middle template (22), the upper heating plate (282) is arranged on the lower end face of the upper heat insulation plate (281), and the upper heat insulation plate, the lower heat insulation plate and the upper heating plate are fixedly connected through screws; the pressurizing oil cylinder (286) is fixedly arranged on the upper end surface of the bottom template (23); the lower base plate (285) is fixedly arranged at the head of a piston cylinder of the booster oil cylinder (286); the lower heat insulation plate (284) is arranged on the upper end face of the lower backing plate (285), the lower heating plate (283) is arranged on the upper end face of the lower heat insulation plate (284), and the lower heat insulation plate, the lower heating plate and the lower heating plate are fixedly connected through screws.

8. The full-automatic EVA double-color foaming molding machine according to claim 5, characterized in that: the device also comprises a die assembly material blocking assembly and a safety pin assembly; the die assembly material blocking component consists of a die assembly material blocking oil cylinder (292) and an ejector pin (293); the die closing material blocking oil cylinder (292) is fixedly arranged on the upper end surface of the middle template (22); the safety pin assembly consists of a safety pin (2101), a safety cylinder (2102), a safety support (2103) and a safety hanging plate (2104); the safety support (2103) is fixedly arranged on the lower end face of the upper template (21); a round hole is formed in the safety support (2103), and a self-lubricating bearing (2105) is sleeved in the round hole; the safety cylinder (2102) is fixedly arranged on the side surface of the safety support (2103); the safety pin (2101) is sleeved on the inner ring of the self-lubricating bearing (2105), and the end surface of the safety pin is fixedly connected with the head of a piston rod of the safety cylinder (2102); the safety hanging plate (2104) is fixedly arranged on the upper end face of the middle template (22).

9. The full-automatic EVA two-color foaming molding machine according to claim 1, wherein the single-two-color switching device comprises a material injection component, a lifting component and a translation component; the lifting assembly consists of a moving seat upper plate (321), a moving seat bottom plate (322), a lifting guide sleeve (323), an I-shaped frame (324), a lifting guide rod (325) and a lifting oil cylinder (326); the lifting guide sleeve (323) is sleeved in the mounting hole of the moving base bottom plate (322), the cylinder body of the lifting oil cylinder (326) is fixedly mounted on the lower end face of the moving base bottom plate (322), and the piston rod of the lifting oil cylinder penetrates through the moving base bottom plate (322) and is fixedly connected with the moving base upper plate (321); the lifting guide rod (325) is sleeved in the lifting guide sleeve (323), and the top of the lifting guide rod is fixedly connected with the lower end face of the moving seat upper plate (321); the upper end surface of the I-shaped frame (324) is fixedly connected with the lower end surface of the moving seat bottom plate (322); the translation assembly consists of a translation rack (331), a translation sliding rail (332), a translation sliding block (333), a translation driving motor (334), a translation driving gear (335) and a translation rack (336); the translation sliding block (333) is clamped on the translation sliding rail (332), and the upper end face of the translation sliding block is fixedly arranged on the lower end face of the I-shaped frame (324); the lower end face of the translation sliding rail (332) is fixed on the movable seat rack (331); the translation rack (336) is fixed on the side surface of the shifting base rack (331) and is parallel to the translation sliding rail (332); the translation driving motor (334) is fixedly arranged on the lower end surface of the moving seat bottom plate (322); the translation driving gear (335) is fixedly connected with an output shaft of the translation driving motor (334) through a key; the translation pinion gear (335) is intermeshed with a translation rack gear (336).

10. The full-automatic EVA two-color foaming molding machine according to claim 9, characterized in that: the injection assembly consists of a material blocking part, a feeding plasticizing part, an injection part and an advancing and retreating part; the material blocking part is composed of a material blocking oil cylinder (3111) and a material blocking needle; the feeding plasticizing part is composed of a feeding barrel (3121), a feeding hopper (3122) and a feeding hopper mounting plate (3123); the injection part is composed of an injection nozzle (3131), an injection head (3132), an injection screw (3133), an injection cylinder (3134), a transmission main shaft (3135), an injection motor seat (3136) and an injection motor (3137); the injection head (3132) is fixedly arranged at the front end of the charging barrel (3121); the injection nozzle (3131) is arranged on a discharge hole of the injection head (3132); the material blocking needle is fixedly arranged at the head of a piston rod of the material blocking oil cylinder (3111), penetrates through the injection head (3132) and is coaxial with a discharge hole of the injection head (3132); the upper end of the feeding hopper (3122) is fixed on the feeding hopper mounting plate (3123), and the lower end is fixedly connected with the feeding barrel (3121); the injection motor (3137) is fixedly arranged on the injection motor seat (3136), and the output shaft of the injection motor (3137) is connected with the transmission main shaft (3135); the transmission main shaft (3135) is arranged in the injection cylinder (3134) and is coaxially connected with the injection screw (3133); the advancing and retreating part is composed of an advancing seat oil cylinder (3141), a retreating seat oil cylinder (3142), a guide rod seat (3143), an advancing and retreating seat guide rod (3144) and an advancing and retreating seat box body (3145); the guide rod seat (3143) is fixedly arranged on the upper end surface of the upper plate (321) of the movable seat; the advancing and retreating seat guide rod (3144) is sleeved on the guide rod seat (3143); a sliding hole is formed in the advancing and retreating seat box body (3145), and the sliding hole is in sliding connection with an advancing and retreating seat guide rod (3144) through an embedded self-lubricating bearing; the seat feeding oil cylinder (3141) is fixedly arranged at the tail part of the material blocking oil cylinder (3111); the seat withdrawing oil cylinder (3142) is fixedly connected with the guide rod seat (3143); the injection cylinder (3134) is arranged in the driving and reversing seat box body (3145); the injection motor seat (3136) is arranged on the side surface of the driving and reversing seat box body (3145); the head of the injection screw (3133) is provided with a torpedo head, a non-return ring and a non-return pad; a plurality of groups of electric heating rings are arranged on the outer ring of the charging barrel (3121); the lifting assembly further comprises a supporting bolt (3271), a lifting supporting rod (3272), a lifting supporting cushion block (3273), a supporting sliding plate (3274), a supporting cross rod (3275) and a cushion block push-pull oil cylinder (3276); the support bolt (3271) is in threaded connection with the upper end face of the moving seat bottom plate (322) and is tightened by a nut; the support sliding plates (3274) are connected through a support cross bar (3275); the cylinder body of the cushion block push-pull oil cylinder (3276) is fixedly arranged on the upper end surface of the moving seat bottom plate (322), and the head part of a piston rod of the cushion block push-pull oil cylinder is fixedly connected with the middle part of a support cross rod (3275); the lifting supporting cushion block (3273) is fixedly arranged on the supporting sliding plate (3274); the upper end of the lifting support rod (3272) is fixed on the upper plate (321) of the moving seat, and the lower end of the lifting support rod passes through the bottom plate (322) of the moving seat.