CN111421794B

CN111421794B - EPS make-up machine is used in foam cutlery box production

Info

Publication number: CN111421794B
Application number: CN202010516769.4A
Authority: CN
Inventors: 李昀泽
Original assignee: Langfang Yanling Technology Co ltd
Current assignee: Wang Jian
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-11-10
Anticipated expiration: 2040-06-09
Also published as: CN111421794A

Abstract

The invention discloses an EPS (expandable polystyrene) forming machine for producing foam lunch boxes, which relates to the field of foam processing equipment and comprises a feeding conveyer belt, a preheater, an electric heater and a forming mechanism, wherein the preheater and the electric heater are sequentially arranged on the feeding conveyer belt, the forming mechanism is arranged at the tail end of the feeding conveyer belt, the forming mechanism is adjacent to the electric heater, the forming mechanism comprises a heat-insulating shell, a fixing component, a plastic-absorbing component, an extruding component and a discharging component, the plastic-absorbing component is arranged at the lower end of the interior of the heat-insulating shell, the fixing component and the extruding component are both arranged at the upper end of the heat-insulating shell, the fixing component is positioned below the extruding component, the discharging component is arranged at the lower end of the plastic-absorbing component, and a recycling component is. According to the invention, through the cooperation of plastic suction molding and extrusion molding, the condition of uneven product thickness in the plastic suction molding process can be avoided, and the product quality is improved.

Description

EPS make-up machine is used in foam cutlery box production

Technical Field

The invention relates to the field of foam processing equipment, in particular to an EPS (expandable polystyrene) forming machine for producing a foam lunch box.

Background

The foamed tableware is one kind of common disposable foamed plastic tableware. The specific production mode is as follows: polystyrene resin is used as a raw material, a foaming agent (butane) and the like are added into an extruder for extruding the sheet after high-temperature heating and melting, the sheet is coiled and placed in a ventilated and humid environment for cooling, and then secondary heating plastic uptake molding is carried out.

The secondary heating plastic molding method comprises the steps of preheating the sheet, heating to a sufficient temperature, and conveying the sheet to a plastic sucking machine for plastic molding. However, the method has the following disadvantages in the formation of the foamed lunch box. Firstly, carrying out a first treatment; because the shape of the lunch box is irregular, the position of the vent hole on the plastic suction grinding tool is difficult to set, so that the thickness of the lunch box is easy to be uneven in the plastic suction process, and the local position of the lunch box is easy to damage, thereby influencing the quality of products; secondly, performing secondary drying; because the foam material is easy to be broken, and the foam surface is rough and easy to be damaged, the foam can not be subjected to auxiliary forming by using an extrusion mode, so that the thickness of the product is not uniform enough. Thirdly, the steps of heating and cooling are required to be repeated continuously in the plastic suction process, so that the energy consumption is high, and the production cost is increased.

Disclosure of Invention

The invention aims to provide a lubricating structure for an axially moving shaft of a warp knitting machine, which aims to solve the technical problems of complex structure, troublesome processing and management and difficult assembly of a lubricating system in the prior art.

The invention provides an EPS (expandable polystyrene) forming machine for producing a foam lunch box, which comprises a feeding conveyer belt, a preheater, an electric heater and a forming mechanism, wherein the preheater and the electric heater are sequentially arranged on the feeding conveyer belt, the forming mechanism is arranged at the tail end of the feeding conveyer belt, the forming mechanism is adjacent to the electric heater, the forming mechanism comprises a heat-insulating shell, a fixing component, a plastic suction component, an extrusion component and a blanking component, the plastic suction component is arranged at the lower end of the inner part of the heat-insulating shell, the fixing component and the extrusion component are both arranged at the upper end of the heat-insulating shell, the fixing component is positioned below the extrusion component, the blanking component is arranged at the lower end of the plastic suction component, and a recovery component is arranged between the.

Further, the plastic uptake subassembly includes die holder, blast pipe, vacuum pump, intake pipe, air intake pump, inlet tube, intake pump and outlet pipe, the upper end of die holder is equipped with a plurality of die cavity, the inside of die holder is equipped with ventilates the chamber, every the bottom of die cavity all is equipped with a plurality of and is used for and ventilates the air vent of chamber intercommunication, blast pipe, inlet tube and outlet pipe all set up the lower extreme and blast pipe, inlet tube and the outlet pipe of die holder and all communicate with the chamber of ventilating, the blast pipe passes through the pipeline intercommunication with the vacuum pump, the intake pump passes through the pipeline intercommunication with the inlet tube, the one end and the blast pipe intercommunication of intake pipe, the other end and the air intake pump intercommunication of intake pipe, all be equipped with the control valve on intake pipe.

Further, fixed subassembly is including fixed jar, fixed frame and a plurality of guide arm, fixed jar sets up in the upper end of heat preservation shell and the vertical downward setting of fixed jar, the output and the fixed frame of fixed jar are connected, every the lower extreme of guide arm all with the upper end fixed connection of fixed frame, be provided with a plurality of and guide arm one-to-one and sliding fit's guide hole on the heat preservation shell.

Further, the extrusion subassembly includes stripper plate and two pneumatic cylinders, and two pneumatic cylinders are the output fixed connection of symmetry setting in the upper end of heat preservation shell and stripper plate's upper end and two pneumatic cylinders, be equipped with the through-hole that a plurality of is used for supplying the output pole of guide arm and fixed jar to pass on the stripper plate, the lower extreme of stripper plate is equipped with a plurality of extrusion part, a plurality of extrusion part and a plurality of die cavity one-to-one.

Further, each extrusion part comprises a first extrusion part and a second extrusion part which are adjacently arranged, the first extrusion part and the second extrusion part have the same structure and respectively comprise an extrusion rod, a telescopic cavity, a first spring, a telescopic rod, a sliding ring, a second spring, a bottom plate, four side connecting rods, four corner connecting rods, four extrusion corner plates and four extrusion side plates, the upper end of the extrusion rod is fixedly connected with the extrusion plate, the telescopic cavity is arranged in the extrusion rod, the telescopic rod comprises a first part, a second part and a third part, the first part is positioned in the telescopic cavity and is in sliding fit with the first part, the second part and the third part, the diameters of the first part, the second part and the third part are sequentially reduced, the first spring is positioned at the upper end of the telescopic rod, the sliding ring is sleeved on the third part, the second spring is sleeved on the third part, and the second spring is positioned at the lower end of the sliding ring, the bottom plate is installed at the lower extreme of telescopic link, four the crisscross setting of extrusion curb plate and four extrusion scutches is around the bottom plate, and four extrusion curb plate and four extrusion scutches all with bottom plate integrated into one piece, four the one end of side connecting rod is articulated with four extrusion curb plates respectively, and the other end of four side connecting rods all is articulated with the lateral wall of extrusion pole, four the one end of angle connecting rod is articulated with four extrusion scutches respectively, four the other end of angle connecting rod all is articulated with the slip ring.

Further, every the both sides of extrusion scute all are equipped with first hypotenuse, every the both sides of extrusion curb plate all be equipped with first hypotenuse complex second hypotenuse, every first hypotenuse all leans out the setting from the inside of extrusion scute.

Further, the unloading subassembly includes flitch, a plurality of unloading pneumatic cylinder and a plurality of horizontal pole down, the flitch setting is equipped with a plurality of spliced pole, a plurality of in the below of die holder and between the two down the flitch setting the unloading pneumatic cylinder is equidistant setting on the flitch down, and a plurality of horizontal pole is installed respectively on the output of a plurality of unloading pneumatic cylinder, every all be equipped with the unloading pole that a plurality of is vertical setting on the horizontal pole, every the die holder is all run through to the upper end of unloading pole, every the upper end of unloading pole all is equipped with the unloading wheel, the upper end of die holder is equipped with the groove of accomodating that a plurality of is used for accomodating the unloading wheel, every the middle part of unloading pole all is equipped with the pipe box, all the pipe box all sets up in the intracavity of ventilating and the upper and lower both ends of every pipe box all with.

Further, the recovery assembly comprises a recovery pipe, one end of the recovery pipe is communicated with the water outlet pipe, and the other end of the recovery pipe is communicated with the preheater.

Compared with the prior art, the invention has the beneficial effects that:

the sheet is subjected to plastic suction molding through the work of the plastic suction assembly, and the sheet is subjected to plastic suction molding in the final stage of plastic suction processing through the work of the extrusion assembly matched with the plastic suction assembly, so that the condition that the thickness of the product is not uniform in the plastic suction molding process can be avoided, and the product quality is improved.

Secondly, when the extrusion part works, the extrusion plate is pushed to move downwards through the work of the hydraulic cylinder, the extrusion plate pushes the extrusion rod to move downwards, the downward movement is stopped after the bottom plate is abutted against and extruded with the middle part of the sheet, at the moment, the extrusion rod can continue to move downwards through the contraction of the first spring, meanwhile, through the connection of the four corner connecting rods, the four extrusion stirring rods rotate towards four corners to extrude the corners of the sheet, after the lower part of the extrusion rod is abutted against the sliding ring, the sliding ring is pushed to move downwards, through the connection transmission of the four side connecting rods, the four extrusion side plates are pushed to deflect around to extrude the side wall at the offset side, meanwhile, the four extrusion side plates are matched with the four extrusion angle plates to form a complete side wall capable of extruding the sheet, wherein the four extrusion side plates and the four extrusion angle plates rotate to extrude the sheet in the descending process, before the extrusion, the four extrusion side plates and the four extrusion corner plates are all in a contracted state, as shown in fig. 10, the friction between the extrusion part and the sheet can be effectively reduced in the blind speaking process, and the damage to the sheet in the extrusion process can be further avoided.

And thirdly, in the process of cooling, cooling water or low-temperature air enters the ventilation cavity and then undergoes heat exchange to be heated, and the heated material in the preheater can be used for preheating the sheet, so that the recycling of heat energy is realized, the energy consumption is reduced, and the cost is further reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic perspective view of a molding mechanism according to the present invention;

FIG. 4 is a partial top view of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view at C of FIG. 5;

FIG. 7 is a partial perspective view of the present invention;

FIG. 8 is a top view of a first extrusion of the present invention;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8;

FIG. 10 is a view showing a state where the first presser contracts in the present invention.

Reference numerals:

the feeding conveyer belt 1, the preheater 2, the electric heater 3, the forming mechanism 4, the heat preservation shell 41, the fixing component 42, the fixing cylinder 421, the fixing frame 422, the guide rod 423, the plastic suction component 43, the lower die holder 431, the exhaust pipe 432, the vacuum pump 433, the air inlet pipe 434, the air inlet pump 435, the water inlet pipe 436, the water inlet pump 437, the water outlet pipe 438, the die groove 439, the vent chamber 4310, the vent hole 4311, the control valve 4312, the extrusion component 44, the extrusion plate 441, the hydraulic cylinder 442, the through hole 443, the extrusion part 444, the first extrusion piece 4441, the extrusion rod 44411, the expansion chamber 44412, the first spring 44413, the expansion rod 44414, the first part 444141, the second part 444142, the third part 444143, the sliding ring 44415, the second spring 44416, the bottom plate 44417, the side connecting rod 44418, the corner connecting rod 44419, the extrusion corner plate 444110, the extrusion side plate 444111, the second extrusion piece 4442, the blanking component 45, the blanking, the discharging rod 455, the discharging wheel 456, the accommodating groove 457, the pipe sleeve 458, the recovery assembly 5, the recovery pipe 51, the first bevel edge 6 and the second bevel edge 7.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 10, an embodiment of the present invention provides an EPS forming machine for producing foam lunch boxes, which includes a feeding conveyor belt 1, a preheater 2, an electric heater 3 and a forming mechanism 4, the preheater 2 and the electric heater 3 are sequentially arranged on the feeding conveyer belt 1, the forming mechanism 4 is arranged at the tail end of the feeding conveyer belt 1, the forming mechanism 4 is arranged adjacent to the electric heater 3, the molding mechanism 4 comprises a heat preservation shell 41, a fixing component 42, a plastic suction component 43, an extrusion component 44 and a blanking component 45, the plastic suction component 43 is arranged at the lower end of the inner part of the heat preservation shell 41, the fixing component 42 and the extrusion component 44 are both arranged at the upper end of the heat preservation shell 41, the fixing component 42 is positioned below the extrusion component 44, the blanking assembly 45 is arranged at the lower end of the plastic suction assembly 43, and the recovery assembly 5 is arranged between the plastic suction assembly 43 and the preheater 2; the preheater 2 and the electric heater 3 are conventional technologies, and are described in detail in the present invention. During the operation of the invention, the sheet is conveyed by the operation of the feeding conveyer belt 1, the sheet is preheated by the preheater 2 and then heated to the temperature required by plastic suction by the electric heater 3, then the feeding conveyer belt 1 and the blanking assembly 45 work in a matching way, the heated sheet is conveyed into the heat-insulating shell 41, the sheet is fixed and pressed by the operation of the fixing assembly 42, then the sheet is molded by plastic suction by the operation of the plastic suction assembly 43, and the plastic suction product is uniform in thickness and improved in quality by the operation of the extrusion assembly 44 and the plastic suction assembly 43 in the final stage of plastic suction processing.

Specifically, the plastic suction assembly 43 comprises a lower die holder 431, an exhaust pipe 432, a vacuum pump 433, an air inlet pipe 434, an air inlet pump 435, an air inlet pipe 436, a water inlet pump 437 and an water outlet pipe 438, the upper end of the lower die holder 431 is provided with a plurality of die grooves 439, the interior of the lower die holder 431 is provided with a vent cavity 4310, the bottom of each die groove 439 is provided with a plurality of vent holes 4311 communicated with the vent cavity 4310, the exhaust pipe 432, the water inlet pipe 436 and the water outlet pipe 438 are all arranged at the lower end of the lower die holder 431, the exhaust pipe 432, the water inlet pipe 436 and the water outlet pipe 438 are all communicated with the ventilation cavity 4310, the exhaust pipe 432 is communicated with a vacuum pump 433 through a pipeline, the water inlet pump 437 is communicated with a water inlet pipe 436 through a pipeline, one end of the air inlet pipe 434 is communicated with the exhaust pipe 432, the other end of the air inlet pipe 434 is communicated with the air inlet pump 435, and the air inlet pipe 434 and the exhaust pipe 432 are both provided with control valves 4312; when the plastic sucking component 43 works, when the sheet moves onto the lower die holder 431, the fixing component 42 presses the sheet and the lower die holder 431 to enable each die groove 439 to be sealed by the sheet, then, the vacuum pump 433 works to exhaust air in all the die grooves 439 along the vent hole 4311-the vent cavity 4310-the exhaust pipe 432, so that vacuum is formed in each die groove 439, and an air pressure difference is formed with the outside to press the sheet at the bottom of the die groove 439 to enable the sheet to start forming; then, the water inlet pump 437 is operated to convey cooling water from the water inlet pipe 436 into the ventilation cavity 4310 to cool and mold the sheet.

Specifically, the fixing assembly 42 includes a fixing cylinder 421, a fixing frame 422 and a plurality of guide rods 423, the fixing cylinder 421 is disposed at the upper end of the heat-insulating shell 41, the fixing cylinder 421 is disposed vertically downward, the output end of the fixing cylinder 421 is connected with the fixing frame 422, the lower end of each guide rod 423 is fixedly connected with the upper end of the fixing frame 422, and the heat-insulating shell 41 is provided with a plurality of guide holes which correspond to the guide rods 423 one to one and are in sliding fit with the guide rods 423; the fixed cylinder 421 can be driven by hydraulic pressure, electric drive or an air cylinder, and when the sheet pressing device works, the fixed cylinder 421 provides power to push the fixed frame 422 to move downwards so as to press the sheet on the lower die holder 431 against the upper end of the lower die holder 431, wherein the guide rod 423 is arranged to limit the moving direction of the fixed frame 422, so that the moving frame is prevented from deviating.

Specifically, the extrusion assembly 44 includes an extrusion plate 441 and two hydraulic cylinders 442, the two hydraulic cylinders 442 are symmetrically disposed at the upper end of the thermal insulation shell 41, the upper end of the extrusion plate 441 is fixedly connected to the output ends of the two hydraulic cylinders 442, the extrusion plate 441 is provided with a plurality of through holes 443 for the guide rod 423 and the output rod of the fixed cylinder 421 to pass through, the lower end of the extrusion plate 441 is provided with a plurality of extrusion components 444, and the plurality of extrusion components 444 are in one-to-one correspondence with the plurality of die slots 439; the Ruidong extrusion plate 441 moves downwards through the operation of the two hydraulic cylinders 442, the extrusion plate 441 drives all the extrusion parts 444 to move downwards together, and each extrusion part 444 is matched with the corresponding die groove 439 to extrude and form the sheet material, so that the whole thickness of the product is uniform.

Specifically, each of the pressing members 444 includes a first pressing member 4441 and a second pressing member 4442 which are adjacently disposed, the first pressing member 4441 and the second pressing member 4442 are identical in structure and include a pressing rod 44411, a telescopic cavity 44412, a first spring 44413, a telescopic rod 44414, a sliding ring 44415, a second spring 44416, a bottom plate 44417, four side connecting rods 44418, four corner connecting rods 44419, four pressing corner plates 444110 and four pressing side plates 444111, the upper end of the pressing rod 44411 is fixedly connected with the pressing plate 441, the telescopic cavity 44412 is disposed in the pressing rod 44411, the telescopic rod 44414 includes a first portion 444141, a second portion 444142 and a third portion 444143, the first portion is disposed in the telescopic cavity 44412 and is slidably engaged therebetween, the diameters of the first portion 444141, the second portion 444142 and the third portion 444143 are sequentially reduced, the first spring 44413 is disposed at the upper end of the telescopic rod 44414, the sliding ring 44415 is sleeved on the third portion 4484, the second spring 44416 is sleeved on the third part 444143, the second spring 44416 is positioned at the lower end of the sliding ring 44415, the bottom plate 44417 is mounted at the lower end of the telescopic rod 44414, the four extrusion side plates 444111 and the four extrusion angle plates 444110 are arranged around the bottom plate 44417 in a staggered manner, the four extrusion side plates 444111 and the four extrusion angle plates 444110 are all integrally formed with the bottom plate 44417, one end of each of the four side connecting rods 44418 is hinged to each of the four extrusion side plates 444111, the other end of each of the four side connecting rods 44418 is hinged to the side wall of the extrusion rod 44411, one end of each of the four corner connecting rods 44419 is hinged to each of the four extrusion angle plates 444110, and the other end of each of the four corner connecting rods 44419 is hinged to the; the first extrusion piece 4441 and the second extrusion piece 4442 correspond to the forming positions of the box body and the box cover of the lunch box respectively, during operation, the extrusion plate 441 pushes the extrusion rod 44411 to move downwards, the downward movement is stopped after the bottom plate 44417 collides with the middle part of the sheet material and is extruded, at this time, the extrusion rod 44411 can continue to move downwards through the contraction of the first spring 44413, meanwhile, through the connection of the four corner connecting rods 44419, the four extrusion stirring shafts rotate towards four corners to extrude the corners of the sheet material, when the lower part of the extrusion rod 44411 collides with the sliding ring 44415, the sliding ring 44415 is pushed to move downwards, through the connection transmission of the four side connecting rods 44418, the four extrusion side plates 444111 are pushed to deflect towards the periphery to extrude the side wall at the offset side, meanwhile, the four extrusion side plates 444111 are matched with the four extrusion angle plates 444110 to form a complete side wall capable of extruding the sheet material, wherein the four extrusion side plates 444111 and the four extrusion angle plates 444110 are simultaneously formed, but is free to rotate at the joint.

Specifically, each of the extruded corner panels 444110 has a first oblique edge 6 on each side thereof, each of the extruded side panels 444111 has a second oblique edge 7 on each side thereof matching the first oblique edge 6, and each of the first oblique edges 6 is obliquely arranged outward from the inside of the extruded corner panel 444110; during operation, because extrusion scute 444110 is earlier with the sheet contact extrusion, make extrusion curb plate 444111 and sheet contact extrusion again, consequently, the setting of first hypotenuse 6 and second hypotenuse 7 can avoid during operation adjacent extrusion curb plate 444111 and extrusion scute 444110 friction to cause wearing and tearing, simultaneously, also can realize the position between the two and prescribe a limit to, avoids long-time after using the skew takes place for the position between the two.

Specifically, the blanking assembly 45 comprises a blanking plate 451, a plurality of blanking hydraulic cylinders 452 and a plurality of cross bars 453, the blanking plate 451 is arranged below the lower die holder 431, a plurality of connecting columns 454 are arranged between the blanking plate 451 and the lower die holder 431, a plurality of blanking hydraulic cylinders 452 are arranged on the blanking plate 451 at equal intervals, a plurality of cross rods 453 are respectively arranged at the output ends of the blanking hydraulic cylinders 452, each cross rod 453 is provided with a plurality of blanking rods 455 which are vertically arranged, the upper end of each blanking rod 455 penetrates through the lower die holder 431, the upper end of each blanking rod 455 is provided with a blanking wheel 456, the upper end of the lower die holder 431 is provided with a plurality of accommodating grooves 457 for accommodating blanking wheels 456, the middle of each blanking rod 455 is provided with a pipe sleeve 458, all the pipe sleeves 458 are arranged in a ventilation cavity 4310, and the upper end and the lower end of each pipe sleeve 458 are fixedly connected with the lower die holder 431; the pipe sleeve 458 is used for separating the discharging rods 455 from the ventilation cavity 4310, so that the ventilation cavity 4310 is kept in a sealed state, when the discharging assembly 45 works, all the discharging wheels 456 are pushed to rise upwards by all the discharging hydraulic rods, and simultaneously, all the discharging hydraulic rods are gradually lowered from one end close to the electric heater 3 to the other end, so that a downslope is formed, so that the formed sheet on the discharging assembly 45 is convenient to roll down, and meanwhile, the feeding conveyer belt 1 can push the formed sheet from the discharging assembly 45 through the sheet when feeding.

Specifically, the recycling assembly 5 comprises a recycling pipe 51, one end of the recycling pipe 51 is communicated with the water outlet pipe 438, and the other end of the recycling pipe 51 is communicated with the preheater 2; at the time of temperature reduction, cooling water or low-temperature air enters the ventilation chamber 4310 and undergoes heat exchange to increase the temperature, and the heated material can be used for preheating the sheet in the preheater 2.

The working principle of the invention is as follows: the feeding conveyer belt 1 works to convey the sheet, the sheet is preheated by the preheater 2, then the sheet is heated to the temperature required by plastic suction by the electric heater 3, then the feeding conveyer belt 1 and the blanking assembly 45 work in a matching manner, the heated sheet is conveyed into the heat preservation shell 41, the fixed cylinder 421 provides power to push the fixed frame 422 to move downwards, the sheet on the lower die holder 431 is pressed on the upper end of the lower die holder 431, each die groove 439 is sealed by the sheet, then the vacuum pump 433 works to discharge air in all the die grooves 439 along the vent holes 4311, the vent cavities 4310 and the exhaust pipe 432, so that vacuum is formed in each die groove 439, an air pressure difference is formed between the vacuum pump 433 and the outside to press the sheet on the bottom of the die groove 439, and the sheet starts to be formed; then, the hydraulic cylinder 442 is operated to push the pressing plate 441 to move downwards, the pressing plate 441 pushes the pressing rod 44411 to move downwards, the pressing rod 44411 stops moving downwards after the bottom plate 44417 collides with the middle part of the sheet and presses downwards, at this time, the pressing rod 44411 can continue to move downwards through contraction of the first spring 44413, meanwhile, through connection of the four corner connecting rods 44419, four pressing stirring arms rotate towards four corners to press the corners of the sheet, after the lower part of the pressing rod 44411 collides with the sliding ring 44415, the sliding ring 44415 is pushed to move downwards, through connection transmission of the four side connecting rods 44418, the four pressing side plates 444111 are pushed to deflect around to press the side walls at the offset side, at the same time, the four pressing side plates 444111 are matched with the four pressing angle plates 444110 to form a complete side wall capable of pressing the sheet, so that the sheet is uniformly formed, and through operation of the water inlet pump 437, cooling water or low-temperature air is conveyed into the vent chamber, the sheets are cooled and formed, then all the blanking wheels 456 are pushed to rise upwards through the work of all the blanking hydraulic rods, and simultaneously, all the blanking hydraulic rods are gradually lowered from one end close to the electric heater 3 to the telescopic height of the other end, so that a downhill is formed, the formed sheets on the blanking assembly 45 are convenient to roll down, and finally, the produced products are cut.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a foam is EPS make-up machine for cutlery box production which characterized in that: comprises a feeding conveyer belt (1), a preheater (2), an electric heater (3) and a forming mechanism (4), wherein the preheater (2) and the electric heater (3) are sequentially arranged on the feeding conveyer belt (1), the forming mechanism (4) is arranged at the tail end of the feeding conveyer belt (1) and the forming mechanism (4) is arranged adjacent to the electric heater (3), the forming mechanism (4) comprises a heat-insulating shell (41), a fixing component (42), a plastic suction component (43), an extrusion component (44) and a blanking component (45), the plastic suction component (43) is arranged at the lower end inside the heat-insulating shell (41), the fixing component (42) and the extrusion component (44) are both arranged at the upper end of the heat-insulating shell (41), the fixing component (42) is positioned below the extrusion component (44), and the blanking component (45) is arranged at the lower end of the plastic suction component (43), be equipped with between plastic uptake subassembly (43) and pre-heater (2) and retrieve subassembly (5), plastic uptake subassembly (43) includes die holder (431), blast pipe (432), vacuum pump (433), intake pipe (434), air intake pump (435), inlet tube (436), intake pump (437) and outlet pipe (438), the upper end of die holder (431) is equipped with a plurality of die cavity (439), the inside of die holder (431) is equipped with breather chamber (4310), every the bottom of die cavity (439) all is equipped with a plurality of air vent (4311) that are used for and ventilate chamber (4310) intercommunication, blast pipe (432), inlet tube (436) and outlet pipe (438) all set up the lower extreme and blast pipe (432), inlet tube (436) and outlet pipe (438) of die holder (431) and all communicate with breather chamber (4310), blast pipe (432) and vacuum pump (433) pass through the pipeline intercommunication, the feeding device is characterized in that the feeding pump (437) is communicated with the water inlet pipe (436) through a pipeline, one end of the air inlet pipe (434) is communicated with the exhaust pipe (432), the other end of the air inlet pipe (434) is communicated with the air inlet pump (435), the air inlet pipe (434) and the exhaust pipe (432) are respectively provided with a control valve (4312), the blanking assembly (45) comprises a blanking plate (451), a plurality of blanking hydraulic cylinders (452) and a plurality of cross rods (453), the blanking plate (451) is arranged below the lower die holder (431) and is provided with a plurality of connecting columns (454) between the blanking plate and the lower die holder (431), the blanking hydraulic cylinders (452) are arranged on the blanking plate (451) at equal intervals, the cross rods (453) are respectively arranged at the output ends of the blanking hydraulic cylinders (452), each cross rod (453) is provided with a plurality of vertically arranged blanking rods (455), and the upper end of each blanking rod (455) runs through the lower die holder (431), the upper end of each blanking rod (455) is provided with a blanking wheel (456), the upper end of the lower die holder (431) is provided with a plurality of accommodating grooves (457) for accommodating the blanking wheels (456), the middle of each blanking rod (455) is provided with a pipe sleeve (458), all the pipe sleeves (458) are arranged in a ventilation cavity (4310), and the upper end and the lower end of each pipe sleeve (458) are fixedly connected with the lower die holder (431).

2. An EPS molding machine for producing foam lunch boxes according to claim 1, wherein: fixed subassembly (42) are including fixed jar (421), fixed frame (422) and a plurality of guide arm (423), fixed jar (421) set up in the upper end of heat preservation shell (41) and the vertical downward setting of fixed jar (421), the output and the fixed frame (422) of fixed jar (421) are connected, every the lower extreme of guide arm (423) all with the upper end fixed connection of fixed frame (422), be provided with a plurality of and guide arm (423) one-to-one and sliding fit's guide hole on heat preservation shell (41).

3. An EPS molding machine for producing foam lunch boxes according to claim 2, wherein: the extrusion assembly (44) comprises an extrusion plate (441) and two hydraulic cylinders (442), wherein the two hydraulic cylinders (442) are symmetrically arranged at the upper end of the heat preservation shell (41) and the upper end of the extrusion plate (441) is fixedly connected with the output ends of the two hydraulic cylinders (442), a plurality of through holes (443) for the guide rods (423) and the output rods of the fixed cylinders (421) to pass through are formed in the extrusion plate (441), a plurality of extrusion components (444) are arranged at the lower end of the extrusion plate (441), and the extrusion components (444) correspond to the die slots (439) one by one.

4. An EPS molding machine for producing foam lunch boxes according to claim 3, wherein: each extrusion part (444) comprises a first extrusion part (4441) and a second extrusion part (4442) which are adjacently arranged, the first extrusion part (4441) and the second extrusion part (4442) are identical in structure and respectively comprise an extrusion rod (44411), a telescopic cavity (44412), a first spring (44413), a telescopic rod (44414), a sliding ring (44415), a second spring (44416), a bottom plate (44417), four side connecting rods (44418), four corner connecting rods (44419), four extrusion corner plates (444110) and four extrusion side plates (444111), the upper end of the extrusion rod (44411) is fixedly connected with the extrusion plate (441), the telescopic cavity (44412) is arranged in the extrusion rod (44411), the telescopic rod (44414) comprises a first part (444141), a second part (444142) and a third part (444143), the first part is arranged in the telescopic cavity (44412) and is in sliding fit with the first part (444141) and the second part (8652), The diameters of the second part (444142) and the third part (444143) are reduced in sequence, the first spring (44413) is positioned at the upper end of the telescopic rod (44414), the sliding ring (44415) is sleeved on the third part (444143), the second spring (44416) is sleeved on the third part (444143) and the second spring (44416) is positioned at the lower end of the sliding ring (44415), the bottom plate (44417) is arranged at the lower end of the telescopic rod (44414), four extrusion side plates (444111) and four extrusion corner plates (444110) are arranged around the bottom plate (44417) in a staggered mode, the four extrusion side plates (444111) and the four extrusion corner plates (444110) are integrally formed with the bottom plate (44417), one ends of the four side connecting rods (44418) are respectively hinged with the four extrusion side plates (444111), the other ends of the four side connecting rods (44418) are respectively hinged with the side walls of the extrusion rod (44411), and one ends of the four corner connecting rods (44419) are respectively hinged with the four extrusion corner plates (444110), the other ends of the four angle connecting rods (44419) are hinged with a sliding ring (44415).

5. An EPS molding machine for producing foam lunch boxes according to claim 4, wherein: every the both sides of extrusion scute (444110) all are equipped with first hypotenuse (6), every the both sides of extrusion curb plate (444111) all are equipped with first hypotenuse (6) complex second hypotenuse (7), every first hypotenuse (6) all lean out the setting from the inside of extrusion scute (444110).

6. An EPS molding machine for producing foam lunch boxes according to claim 1, wherein: the recycling assembly (5) comprises a recycling pipe (51), one end of the recycling pipe (51) is communicated with the water outlet pipe (438), and the other end of the recycling pipe (51) is communicated with the preheater (2).