阅读说明：本技术 一种pla杯子的自动化制造系统 (Automatic manufacturing system of PLA cup ) 是由 杨荣祥 于 2020-12-30 设计创作，主要内容包括：本发明提出一种PLA杯子的自动化制造系统,包括形成杯子外壁的外壁成型机,注塑形成杯子内壁并形成有与杯子外壁连接支撑条的内壁成型机,以及将杯子外壁和内壁组装的组装装置。本发明的PLA杯子智能制造装置,通过外壁成型机和内壁成型机形成杯子的外壁和内壁,然后通过组装装置进行组装形成两层杯壁,实现自动生产双层杯子,双层杯子的内内壁之间具有空隙隔热作用。(The invention provides an automatic manufacturing system of a PLA cup, which comprises an outer wall forming machine for forming the outer wall of the cup, an inner wall forming machine for forming the inner wall of the cup through injection molding and forming a supporting strip connected with the outer wall of the cup, and an assembling device for assembling the outer wall and the inner wall of the cup. According to the intelligent PLA cup manufacturing device, the outer wall and the inner wall of the cup are formed through the outer wall forming machine and the inner wall forming machine, then the two layers of cup walls are formed through assembly through the assembly device, automatic production of the double-layer cup is achieved, and a gap heat insulation effect is achieved between the inner walls of the double-layer cup.)

1. An automated manufacturing system of PLA cup which characterized in that: the cup comprises an outer wall forming machine for forming the outer wall of the cup, an inner wall forming machine for forming the inner wall of the cup through injection molding and forming a supporting strip connected with the outer wall of the cup, and an assembling device for assembling the outer wall and the inner wall of the cup.

2. An automated PLA cup manufacturing system according to claim 1, wherein: the outer wall forming machine comprises a lower membrane component, a heating element, a feeding machine and an installation frame, wherein the lower membrane component is formed by adsorption, the heating element is arranged above the lower membrane component and used for heating materials forming the outer wall of the cup, the feeding machine is used for conveying the materials to the position between the lower membrane component and the heating element, and the installation frame is used for installing the lower membrane component and the heating element.

3. An automated PLA cup manufacturing system according to claim 2, wherein: the lower membrane component comprises a forming template and a lifting piece, wherein the forming template forms a plurality of cup outer walls through adsorption, and the lifting piece drives the forming template to lift.

4. An automated PLA cup manufacturing system according to claim 3, wherein: the molding plate comprises a plurality of molding cavities for adhering and molding materials, and a gas suction layer which is positioned below the molding cavities and is respectively communicated with each molding cavity.

5. An automated PLA cup manufacturing system according to claim 4, wherein: an air hole communicated with the air suction layer is formed at the bottom of each forming cavity; and an air suction hole is formed at the bottom of the air suction layer and is connected with an external air extractor.

6. An automated PLA cup manufacturing system according to claim 2, wherein: the heating member includes a heating plate for heating and a pushing cylinder installed on the mounting frame to drive the heating plate to move toward the lower film assembly.

7. An automated PLA cup manufacturing system according to claim 2, wherein: the feeder comprises a conveying winding drum for conveying materials, a PLA material film wound on the conveying winding drum, a collecting winding drum for collecting the used PLA material film, and two guide pieces symmetrically arranged on a mounting frame and used for guiding.

8. An automated PLA cup manufacturing system according to claim 7, wherein: the guide piece comprises a first guide roller attached to the lower part of the PLA material film and a roller assembly clamping the PLA material film.

9. An automated PLA cup manufacturing system according to claim 8, wherein: the roller assembly includes a second guide roller positioned below the film of PLA material and a third guide roller positioned above the film of PLA material.

10. An automated PLA cup manufacturing system according to claim 1, wherein: the cup comprises a lower mold injection molding part for forming the inner wall of the cup, an upper mold injection molding part matched with the lower mold injection molding part, and a support frame for mounting the lower mold injection molding part and the upper mold injection molding part.

Technical Field

The invention relates to the technical field of production of articles for daily use, in particular to an automatic manufacturing system of a PLA cup.

Background

In daily life, disposable cup is the article of common use, and convenient to use, but current all is the monolayer setting, and thermal-insulated effect is poor can be scalded by carelessness, and current double-deck thermal-insulated cup is comparatively rare, and produces comparatively troublesome.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

The invention aims to provide an automatic manufacturing system of PLA cups, which can rapidly and automatically produce double-layer cups, and can be automatically stacked and conveniently packaged.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic manufacturing system of a PLA cup comprises an outer wall forming machine for forming the outer wall of the cup, an inner wall forming machine for forming the inner wall of the cup in an injection molding mode and forming a supporting strip connected with the outer wall of the cup, and an assembling device for assembling the outer wall and the inner wall of the cup.

The outer wall forming machine comprises a lower membrane component, a heating element, a feeding machine and an installation frame, wherein the lower membrane component is formed by adsorption, the heating element is arranged above the lower membrane component and used for heating materials forming the outer wall of the cup, the feeding machine is used for conveying the materials to the position between the lower membrane component and the heating element, and the installation frame is used for installing the lower membrane component and the heating element.

The lower membrane component comprises a forming template and a lifting piece, wherein the forming template forms a plurality of cup outer walls through adsorption, and the lifting piece drives the forming template to lift.

The molding plate comprises a plurality of molding cavities for adhering and molding materials, and a gas suction layer which is positioned below the molding cavities and is respectively communicated with each molding cavity.

An air hole communicated with the air suction layer is formed at the bottom of each forming cavity; and an air suction hole is formed at the bottom of the air suction layer and is connected with an external air extractor.

The heating member includes a heating plate for heating and a pushing cylinder installed on the mounting frame to drive the heating plate to move toward the lower film assembly.

The feeder comprises a conveying winding drum for conveying materials, a PLA material film wound on the conveying winding drum, a collecting winding drum for collecting the used PLA material film, and two guide pieces symmetrically arranged on a mounting frame and used for guiding.

The guide piece comprises a first guide roller attached to the lower part of the PLA material film and a roller assembly clamping the PLA material film.

The roller assembly includes a second guide roller positioned below the film of PLA material and a third guide roller positioned above the film of PLA material.

The cup comprises a lower mold injection molding part for forming the inner wall of the cup, an upper mold injection molding part matched with the lower mold injection molding part, and a support frame for mounting the lower mold injection molding part and the upper mold injection molding part.

The lower die injection molding piece comprises a plurality of accommodating cavities for forming the inner wall of the cup; the upper die injection molding piece comprises a plurality of top die columns matched with the containing cavities and a driving cylinder for driving the top die columns to be arranged in the containing cavities.

The accommodating cavity is in an inverted frustum shape with a wide upper part and a narrow lower part, and a plurality of forming strips are formed on the inner side wall of the inverted frustum-shaped accommodating cavity along the circular circumference of the top end of the inverted frustum-shaped accommodating cavity; gaps are arranged between adjacent forming strips.

The molding strips are arranged at equal intervals.

The assembling device comprises an operation table connected between the outer wall forming machine and the inner wall forming machine, a suction claw movably arranged on the operation table for sucking the outer wall of the cup, and a transmission device positioned on one side of the operation table for transmitting the formed quilt.

A horizontal driving rail is arranged on the operating platform and is respectively arranged on the mounting frame and the supporting frame; the horizontal driving track is provided with a first sliding part connected with the lower film assembly in a sliding manner and a second sliding part connected with the lower film injection molding part.

The suction gripper comprises an adsorption plate which is used for sucking the interior of the cup, a lifting cylinder which drives the adsorption plate to move up and down, and a horizontal mover which is used for moving, installing and is fixedly connected with the lifting cylinder above the operating platform.

The adsorption plate comprises a plurality of adsorption holes corresponding to the molding cavities respectively.

And the operation table is positioned at the input end of the transmission device and is provided with a heating compaction piece which is used for heating when the inner wall and the outer wall of the cup are spliced.

The conveying device comprises a conveying assembly for conveying the cups for sorting, a conveying frame for mounting the conveying assembly, and an auxiliary roller for mounting the auxiliary conveying assembly for sorting.

The transmission assembly comprises a plurality of transmission belts arranged side by side; a sorting gap with the distance smaller than the maximum diameter of the cup is formed between the adjacent conveying belts; the transmission frame is divided into a sorting area and a sequencing area by taking a rotating shaft of the auxiliary roller as a connecting line; the sorting region comprises a movable space which is arranged below the conveying belt and provides a movable gap for the bottom of the cup, and the sorting region comprises a supporting plate which is arranged below the conveying belt and used for supporting the bottom of the cup to enable the cup to lie flat and a limiting plate which is arranged on the conveying frame and is positioned at the tail end of the conveying belt.

An automated PLA cup manufacturing process, comprising the steps of:

a. simultaneously manufacturing the outer wall of the cup and the inner wall of the cup;

b. heating the inner wall of the cup, and adhering the connecting strip and the outer wall of the cup to form a finished cup;

c. and sorting and stacking the cups.

In the step a, simultaneously adsorbing and injecting by using an outer wall forming machine and an inner wall forming machine to form the outer wall and the inner wall of the cup; the feeding machine conveys materials to a position between the lower membrane assembly and the heating part, the heating part presses downwards to heat the materials so as to soften the materials, and the lower membrane assembly forms suction force on the heated materials and adheres to the lower membrane assembly to form the cup wall of the cup; the upper mold injection molding piece moves towards the lower mold injection molding piece and is matched with the lower mold injection molding piece for injection molding to form the inner wall of the cup.

In the step b, assembling the outer wall and the inner wall of the cup by using an assembling device; the inner wall of the cup formed by the inner wall forming machine moves to the operating platform, and the outer wall of the suction grabbing cup is embedded into the inner wall of the cup to form a complete cup.

In the step c, sorting, conveying and stacking the cups by adopting a conveying device; in the cup fell to the transmission subassembly, the rim of a cup card of cup between adjacent transmission band and the bottom of a cup orientation, the transmission band is transported and is passed through the auxiliary roller below, and continuation transmission and cup bottom support and push up to supporting the roof plate, and the transmission band can continue the transmission to support the roof plate top in can arranging in to the cup bottom for the cup lies flat then the rim of a cup contacts the limiting plate, and later cup will be sheathe in and form the sequencing on previous cup.

After the technical scheme is adopted, the PLA cup intelligent manufacturing device forms the outer wall and the inner wall of a cup through the outer wall forming machine and the inner wall forming machine, then the outer wall and the inner wall of the cup are assembled through the assembling device to form two layers of cup walls, automatic production of double-layer cups is achieved, and gaps and heat insulation effects are formed between the inner walls of the double-layer cups.

Drawings

FIG. 1 is a schematic diagram of the structure of an automated PLA cup manufacturing system of the present invention;

FIG. 2 is a schematic structural view of the inner wall forming machine of the present invention;

FIG. 3 is a schematic view showing the detailed structure of the inner wall forming machine according to the present invention;

FIG. 4 is a schematic cross-sectional view of a template according to the present invention;

FIG. 5 is a schematic structural view of the inner wall forming machine of the present invention;

FIG. 6 is a schematic view showing the detailed structure of the inner wall forming machine according to the present invention;

FIG. 7 is a schematic view of the structure of the receiving chamber of the present invention;

FIG. 8 is a schematic view of the suction grip of the present invention;

FIG. 9 is a schematic structural diagram of a transmission device according to the present invention;

fig. 10 is a schematic structural view of a transfer belt according to the present invention.

In the figure:

the outer wall forming machine 1, a lower film component 11, a heating component 12, a feeder 13, a mounting frame 14, a forming template 15, a lifting component 16, a forming cavity 17, a suction layer 18, an air hole 19, a suction hole 110, a heating plate 111, a pushing air cylinder 112, a conveying reel 113, a PLA material film 114, a collecting reel 115, a guide component 116, a first guide roller 117 and a roller component 118;

the inner wall forming machine 2, a lower mold injection molding part 21, an upper mold injection molding part 22, a support frame 23, a containing cavity 24, a top mold column 25, a driving cylinder 26 and a forming strip 27;

the assembling device 3, the operation table 31, the suction gripper 32, the conveying device 33, the horizontal driving rail 34, the first sliding member 35, the second sliding member 36, the adsorption plate 37, the lifting cylinder 38, the horizontal moving member 39, the conveying assembly 310, the conveying frame 311, the auxiliary roller 312, the conveying belt 313, the abutting plate 314, the limiting plate 315 and the heating compacting member 316316.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

The automatic manufacturing system of the PLA cup comprises an outer wall forming machine 1 for forming the outer wall of the cup, an inner wall forming machine 2 for forming the inner wall of the cup in an injection molding mode and provided with a supporting strip connected with the outer wall of the cup, and an assembling device 3 for assembling the outer wall and the inner wall of the cup, wherein the automatic manufacturing system is shown in figures 1-10. The outer wall and the inner wall of the cup are formed by the outer wall forming machine 1 and the inner wall forming machine 2, and then the cup is assembled by the assembling device 3 to form two layers of cup walls, so that the heat insulation effect is realized.

Preferably, the outer wall forming machine 1 includes a lower membrane assembly 11 adsorbed into a shape, a heating member 12 positioned above the lower membrane assembly 11 to heat the material forming the outer wall of the cup, a feeding machine 13 to convey the material between the lower membrane assembly 11 and the heating member 12, and a mounting frame 14 for mounting the lower membrane assembly 11 and the heating member 12. The material is conveyed between the lower membrane component 11 and the heating component 12 through the feeding machine 13, then the heating component 12 presses downwards to heat the material so as to soften the material, and the lower membrane component 11 forms suction force on the heated material and is attached to the lower membrane component to form the cup wall.

Preferably, the lower membrane module 11 includes a forming plate 15 for forming a plurality of cup outer walls by suction, and a lifting member 16 for driving the forming plate 15 to be lifted. The lifter 16 pushes the template 15 to fit under the material, and the template 15 then activates the adsorbent material to adhere to the template to form the outer walls of the plurality of cups.

Preferably, the molding plate 15 includes a plurality of molding cavities 17 for adhering and molding the material, and a suction layer 18 located below the plurality of molding cavities 17 and respectively communicating with each molding cavity 17. Air in the forming cavity 17 is sucked through the air suction layer 18, so that the forming cavity 17 sucks the materials to form the outer wall of the cup.

Preferably, an air hole 19 is formed at the bottom of each forming cavity 17 and communicated with the air suction layer 18; the bottom of the getter layer 18 is formed with a getter hole 110 connected to an external air pump. The suction layer 18 is in butt joint with an air extractor, so that each forming cavity 17 is sucked.

Preferably, the heating member 12 includes a heating plate 111 for heating, and a push cylinder 112 installed on the mounting frame 14 to drive the heating plate 111 toward the lower film assembly 11. The heating plate 111 is driven by the push cylinder 112 to move the bonding material for heating.

Preferably, the feeding machine 13 includes a delivery reel 113 for delivering the material, a PLA material film 114 wound on the delivery reel 113, a collection reel 115 for collecting the used PLA material film 114, and two guide members 116 symmetrically installed on the mounting frame 14 for guiding. The feeding is carried out by means of a delivery reel 113 and the material is levelled by means of guides 116, the PLA material film 114 being recovered and reprocessed by means of a collection reel 115 after use.

Preferably, the guide 116 comprises a first guide roller 117, which fits under the PLA material film 114, and a roller assembly 118, which holds the PLA material film 114. The first guide roller 117 performs a first guide and the roller assembly 118 performs a flattening guide while holding the PLA material film 114.

Preferably, the roller assembly 118 includes a second guide roller positioned below the PLA material film 114 and a third guide roller positioned above the PLA material film 114. The upper and lower surfaces of the PLA material film 114 are respectively bonded by the cooperation of the second guide roller and the third guide roller.

Preferably, it comprises a lower mold injection-molded part 21 forming the inner wall of the cup, an upper mold injection-molded part 22 fitted to the lower mold part, and a support bracket 23 for mounting the lower mold injection-molded part 21 and the upper mold injection-molded part 22. The inner wall of the cup is formed by moving the upper mold injection molding part 22 toward the lower mold injection molding part 21 in cooperation with injection molding.

Preferably, the upper molding member 22 includes a plurality of top mold columns 25 that mate with the receiving cavities 24, and a drive cylinder 26 that drives the top mold columns 25 into the receiving cavities 24. The top mold pillar 25 is driven by the driving cylinder 26 to be placed in the receiving cavity 24 and then injection molding is started.

Preferably, the top mold pillar 25 is an inverted circular truncated cone shape with a wide top and a narrow bottom, and the side wall of the inverted circular truncated cone shape top mold pillar 25 is formed with a plurality of molding strips 27 along the circular perimeter of the top end thereof; adjacent profiled strips 27 have a gap between them. The injection-molded material flows into the gap to form a connecting strip connected with the outer wall of the cup.

Preferably, the assembling device 3 includes an operation table 31 engaged between the outer wall molding machine 1 and the inner wall molding machine 2, a suction gripper 32 movably installed on the operation table 31 to suck the outer wall of the cup, and a transfer device 33 located at one side of the operation table 31 to transfer the molded object. The inner wall of the cup formed by the inner wall forming machine 2 moves to the operation table 31, then the outer wall of the cup is sucked by the sucking claw 32 to be embedded into the inner wall of the cup to form a complete cup, and then the complete cup is placed into the conveying device 33 for conveying.

Preferably, the operation table 31 is provided with horizontal driving rails 34 respectively extending to the mounting frame 14 and the supporting frame 23; the horizontal drive rail 34 is slidably mounted with a first slide 35 associated with the lower membrane module 11 and a second slide 36 associated with the lower mold injection molded part 21. Drive down membrane module 11 through first slider 35 and move along horizontal drive track 34 and arrange in the absorption and grab 32 below, then the absorption is grabbed 32 cup outer wall, grab 32 cup outer wall in the absorption after, second slider 36 drives lower mould injection molding 21 and moves to the absorption and grab 32 below, then the absorption is grabbed 32 and is driven the cup outer wall and arrange in lower mould injection molding 21 cup inner wall, then the heating cup inner wall softens, waits to cool off the cup inner wall and glues glutinous with the cup outer wall.

Preferably, the suction gripper 32 includes a suction plate 37 for sucking the inside of the cup, a lifting cylinder 38 for driving the suction plate 37 to move up and down, and a horizontal mover 39 for moving above the installation table 31 and fixedly connected to the lifting cylinder 38. The horizontal mover 39 drives the lifting cylinder 38 to move and adjust the position on the operation table 31, and then the lifting cylinder 38 drives the adsorption plate 37 to adsorb and grab the outer wall of the cup.

Preferably, the adsorption plate 37 includes a plurality of adsorption holes corresponding to the plurality of molding cavities 17, respectively. The cup outer wall is drawn to correspondence that can be better, one corresponds and draws one.

Preferably, the station at the input end of the conveyor is equipped with a heated compactor 316 which is heated when the inner and outer walls of the cup are being assembled. After the suction gripper 32 sucks the inner wall of the cup and puts the inner wall of the cup into the outer wall of the cup, the suction gripper descends to contact the inner wall of the cup and the outer wall of the cup through the heating compacting piece 316, then the outer wall and the inner wall of the cup are softened by heating, and then the outer wall and the inner wall of the cup are stuck together in a cold area.

Preferably, the heated compacting member 316 includes a heating plate, and an up-and-down driving cylinder installed on the operating table 31 to drive the heating plate up and down.

Preferably, the conveying device 33 comprises a conveying assembly 310 for conveying the cups for sorting, a conveying rack 311 for mounting the conveying assembly 310, and an auxiliary roller 312 for mounting the auxiliary conveying assembly 310 for sorting. Sorting is performed by the conveyor assembly 310 and the auxiliary roller 312 pushes back the disordered cups to assist sorting.

Preferably, the conveying assembly 310 includes a plurality of conveying belts 313 arranged side by side; the adjacent conveying belts 313 have a sorting gap with the distance smaller than the maximum diameter of the cup; the transport frame 311 is divided into a sorting area and a sorting area by using the rotation shaft of the auxiliary drum 312 as a connection line; the sorting area comprises a movable space which is positioned below the conveying belt 313 and provides a movable gap for the bottoms of the cups, the sequencing area comprises a propping plate 314 which is positioned below the conveying belt 313 and is used for propping against the bottoms of the cups so that the cups lie flat, and a limiting plate 315 which is arranged on the conveying rack 311 and positioned at the conveying end of the conveying belt 313. When the cup falls to the conveying assembly 310, the cup mouth of the cup can be clamped between the adjacent conveying belts 313, the cup bottom faces towards the conveying belts 313, then the cup is conveyed through the conveying belts 313 and passes below the auxiliary rollers 312, the cup is conveyed continuously, the bottom of the cup is abutted against the abutting plate 314, the conveying belts 313 can convey continuously, the bottom of the cup can be arranged above the abutting plate 314, the cup lies flat, then the cup mouth contacts the limiting plate 315, and the cup at the back can be sleeved on the cup at the front to form a sorting.

Preferably, the rolling axis of the auxiliary roller 312 is perpendicular to the conveying direction of the conveying belt 313, and the distance between the lowest end of the auxiliary roller 312 and the highest point of the conveying belt 313 is smaller than the maximum height of the cups.

A PLA cup intelligent manufacturing process comprises the following steps:

a. simultaneously manufacturing the outer wall of the cup and the inner wall of the cup;

b. heating the inner wall of the cup, and adhering the connecting strip and the outer wall of the cup to form a finished cup;

c. and sorting and stacking the cups.

Preferably, in step a, the outer wall and the inner wall of the cup are simultaneously formed by adsorption and injection molding using the outer wall molding machine 1 and the inner wall molding machine 2, respectively; the feeder 13 conveys the material to a position between the lower membrane component 11 and the heating component 12, the heating component 12 presses downwards to heat the material so as to soften the material, and the lower membrane component 11 forms suction force on the heated material and adheres to the lower membrane component to form the cup wall; the upper injection molding part 22 moves towards the lower injection molding part 21 to form the inner wall of the cup in an injection molding mode.

Preferably, in step b, the outer wall and the inner wall of the cup are assembled by using the assembly device 3; the inner wall of the cup formed by the inner wall forming machine 2 moves to the operation table 31, and the suction claw 32 sucks the outer wall of the cup and embeds the outer wall of the cup into the inner wall of the cup to form a complete cup.

Preferably, in step c, the cups are sorted, transported and stacked by means of the transport device 33; the cups fall into the conveying assembly 310, the mouths of the cups are clamped between the adjacent conveying belts 313, the bottoms of the cups face towards each other, the conveying belts 313 convey the cups to pass below the auxiliary rollers 312, the cups continue to be conveyed, the bottoms of the cups are abutted against the abutting plates 314, the conveying belts 313 continue to convey the cups, the bottoms of the cups are placed above the abutting plates 314, the cups lie flat, the mouths of the cups contact the limiting plates 315, and the cups at the rear are sleeved on the cups at the front to form a sequencing.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.