CN114643697A - Automatic production line for plastic bottle blow molding - Google Patents
Automatic production line for plastic bottle blow molding Download PDFInfo
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- CN114643697A CN114643697A CN202210263203.4A CN202210263203A CN114643697A CN 114643697 A CN114643697 A CN 114643697A CN 202210263203 A CN202210263203 A CN 202210263203A CN 114643697 A CN114643697 A CN 114643697A
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 18
- 238000007664 blowing Methods 0.000 claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 75
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 26
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/66—Cooling by refrigerant introduced into the blown article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/78—Measuring, controlling or regulating
- B29C49/786—Temperature
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention provides an automatic production line for plastic bottle blow molding, which is characterized in that a linear type bottle blowing production line is formed by arranging a constant temperature preheating module, a variable pitch transfer module, a bottle blowing module and a finished product transfer module in a linear manner, a blank supplying module is arranged at the side part of the linear type production line, and a turning blank conveying module is arranged above the feeding end of the constant-temperature preheating module in a matching way, the blank supplying module is matched with the turning blank conveying module to continuously turn and supply the bottle blanks to the constant-temperature preheating module, the constant-temperature preheating module preheats the bottle blanks in a multi-stage preheating mode with alternating heating and cooling cycles, the variable pitch transfer module is used for transferring variable pitch to the bottle blowing module for blowing, the formed bottles are continuously output by the finished product transfer module, the whole production line is reasonable and compact in layout, all processes are efficiently matched, the production efficiency is greatly improved, the bottle blowing quality is guaranteed, and the full-automatic production line is particularly suitable for full-automatic production of large-capacity plastic bottles made of special materials.
Description
Technical Field
The invention relates to the technical field of bottle blowing machines, in particular to an automatic production line for plastic bottle blowing.
Background
The bottle blowing machine is a device for manufacturing plastic particles, plastic bottle blanks and the like into hollow containers through a blow molding process, and common machines comprise a hollow extrusion blowing machine which uses PP and PE for one-step molding, a stretching bottle blowing machine which uses PET, PC or PP for two-step molding, and a newly developed multilayer hollow extrusion blowing and stretching blow molding machine. The bottle blowing machine generally comprises a machine frame, and a heating structure, a spacing structure, a conveying structure, a bottle blowing structure and a mold closing structure which are arranged on the machine frame. When the bottle blank is processed, the heating structure heats and softens the bottle blank, the spacing structure receives the bottle blank which is heated and softened and divides the bottle blank to the space matched with each mold cavity in the mold closing structure, the conveying structure conveys the softened bottle blank into the mold closing structure, the bottle blowing structure blows the bottle blank clamped in the mold closing structure, and finally, the bottle taking device takes away the formed container.
Chinese patent CN201910887522.0 discloses a bottle blowing machine with transfer mechanism, which comprises a frame, a heating structure, a separation structure, a conveying structure, a bottle blowing structure and a mold closing structure, wherein the separation structure receives bottle blanks from the heating structure and disperses the bottle blanks to a preset distance, so that the conveying structure receives equally-spaced bottle blanks and sends the bottle blanks into the mold closing structure, a transfer mechanism for transferring the bottle blanks is arranged between the separation structure and the conveying structure, the bottle blanks are provided with a clamping station and an inserting station, and the bottle blanks are sequentially transferred between the separation structure, the transfer mechanism and the conveying structure and pass through the clamping station and the inserting station for alternate connection.
However, for a high-capacity pp bottle, the material flowability is good, and the high-capacity pp bottle is sensitive to temperature, so the requirement on the bottle blank heating process is high, the bottle blank heating structure in the prior art is difficult to control the uniform heating inside and outside the bottle blank, in addition, the bottle blank is usually preheated in an inverted state, the prior art cannot adapt to the continuous feeding speed to realize continuous overturning feeding, and the production efficiency is reduced. Therefore, a fully automatic blow molding production line aiming at special bottles with special materials and special specifications is still lacked at present.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, provides an automatic plastic bottle blowing production line, a linear bottle blowing production line is formed by arranging a constant-temperature preheating module, a variable-pitch transfer module, a bottle blowing module and a finished product transfer module in a linear manner, a blank supplying module is arranged at the side part of the linear production line, and an overturning blank conveying module is arranged above a feeding end of the constant-temperature preheating module in a matching manner, the blank supplying module and the overturning blank conveying module are matched to continuously overturn and supply bottle blanks to the constant-temperature preheating module, the constant-temperature preheating module preheats the bottle blanks in a multi-stage preheating mode with alternating heating and cooling cycles, the bottle blanks are transferred to the bottle blowing module by the variable-pitch transfer module for blowing, molded bottles are continuously output by the finished product transfer module, the whole production line is reasonable and compact in layout, the processes are efficiently matched, the production efficiency is greatly improved, and the bottle blowing quality is guaranteed, is particularly suitable for the full-automatic production of large-capacity plastic bottles made of special materials.
In order to achieve the purpose, the invention provides the following technical scheme:
plastic bottle blowing automation line includes: the blank supply module further comprises: the system comprises a blank supplying module, a turning blank conveying module, a constant-temperature preheating module, a bottle blowing module and a pitch-variable transfer module, wherein the turning blank conveying module is in butt joint with the output end of the blank supplying module, the constant-temperature preheating module is in butt joint with the output end of the turning blank conveying module, and the pitch-variable transfer module is connected and arranged between the constant-temperature preheating module and the bottle blowing module; the overturning blank conveying module comprises: the blank conveying mechanism is horizontally arranged in a rotating mode and is in butt joint with the output end of the blank turning mechanism;
after the bottle blanks with the upward bottle openings are transferred to the blank turning mechanism one by the blank supplying modules, the bottle blanks rotate to the inverted state with the downward bottle openings along with the blank turning mechanism, are guided and transferred to the blank conveying mechanism in the continuous rotating process, and then are transferred to the constant-temperature preheating module to be subjected to a multi-stage preheating process of heating and cooling cycle alternation.
Preferably, the constant-temperature preheating module is arranged to be of a long rotary structure, the bottle blowing module is positioned on one side of the constant-temperature preheating module in the length direction, the overturning blank conveying module and the variable-pitch transfer module are positioned between the constant-temperature preheating module and the bottle blowing module, and the blank supplying module is positioned on one side of the constant-temperature preheating module in the width direction; and after the bottle blank is preheated by rotating for one circle in the constant-temperature preheating module, the bottle blank is transferred into a bottle blowing module by the matching of the variable pitch transfer module to perform a bottle blowing process.
Preferably, the constant temperature preheating module includes: gyration transmission device, the upset send the base module to be located gyration transmission device top, bottle base send the base module output by the upset back to in order fall to on the gyration transmission device, a plurality of groups are followed gyration transmission device's transmission path distributes and sets up and cover the directional unit of preheating on it, and adjacent two sets of be provided with open structure's cooling space between the directional unit of preheating, still include: and the cooling module is used for blowing air from the top to cool the bottle blank when the bottle blank is conveyed through the cooling space.
Preferably, the directional preheating unit includes: the bottle body heating lamp bank is installed on the heating box body on one side of the heating conveying channel, and the reflecting portion is installed on the heating box body on the other side of the heating conveying channel relative to the bottle body heating lamp bank.
Preferably, the body heating lamp set includes: the lamp tubes are arranged in a height distribution mode and cover the bottle bodies of the bottle blanks, one side, facing the heating conveying channel, of each lamp tube is provided with a light-transmitting structure, and the other side, back to the heating conveying channel, of each lamp tube is provided with a light-reflecting structure.
Preferably, the constant temperature preheating module further includes: the temperature control module is communicated with the top of the directional preheating unit to control the inside of the directional preheating unit to be thermostatically controlled through the air draft effect.
Preferably, the blank-turning mechanism comprises: the rotary blank tray is horizontally arranged, a material receiving surface is arranged on one surface, facing the blank supply module, of the rotary blank tray, the blank supply module is in butt joint with the top of the material receiving surface, and a plurality of blank bottle screens are arranged on the material receiving surface along a circumferential array; and the bottle blank is transferred to the bottle blank clamping position by the blank supplying module and then rotates 180 degrees along with the rotating blank tray to be in an inverted state when reaching the bottom output end of the rotating blank tray.
Preferably, the compact supply module comprises: the conveying channel is obliquely arranged, the output end of the conveying channel is arranged at a low position, and the bottle blank slides down from the conveying channel under the action of self gravity and is clamped on the blank turning mechanism.
Preferably, the blank feeding mechanism includes: the rotary shaft of the driving plate is vertically arranged, and the discharging guide part is arranged in an arc structure and is arranged outside the circumference of the driving plate, and the guide end part of the discharging guide part extends into the material receiving surface; and the bottle blank positioned at the bottom of the rotary blank tray is transferred to the driving plate under the guiding action of the discharging guiding part and is rotationally output along with the driving plate.
Preferably, the pitch change relay module includes: a clamping transfer unit and a pitch changing unit; the clamping transfer unit and the variable pitch unit are arranged into a split structure or an integrated structure.
Preferably, when the variable pitch transfer module is of a split structure, two groups of clamping and transferring units are arranged, bottle blanks are clamped and transferred to the variable pitch unit by the clamping and transferring unit a for variable pitch, and then the bottle blanks are fed and transferred into the bottle blowing module by the clamping and transferring unit b after the variable pitch is finished;
preferably, when the pitch-variable transfer module is of an integrated structure, the pitch-variable unit synchronously completes pitch change in the process that the clamping and transferring unit clamps and feeds the bottle blank into the bottle blowing module.
The invention has the beneficial effects that:
(1) the invention forms a linear bottle blowing production line by arranging a constant temperature preheating module, a variable pitch transfer module, a bottle blowing module and a finished product transfer module in a linear way, and a blank supplying module is arranged at the side part of the linear bottle blowing production line, and a turning blank conveying module is arranged above the feeding end of the constant-temperature preheating module in a matching way, the blank supplying module is matched with the turning blank conveying module to continuously turn and supply the bottle blanks to the constant-temperature preheating module, the constant-temperature preheating module preheats the bottle blanks in a multi-stage preheating mode with alternating heating and cooling cycles, the pitch of the pitch-variable transfer module is transferred to the bottle blowing module for blowing, the formed bottles are continuously output by the finished product transfer module, the whole production line is reasonable and compact in layout, all the working procedures are efficiently matched, the production efficiency is greatly improved, the bottle blowing quality is guaranteed, and the full-automatic production of plastic bottles with special materials and special specifications is particularly suitable for full-automatic production of plastic bottles with large capacity (1.25L) pp materials;
(2) the overturning and blank-conveying module is arranged between the blank-supplying module and the constant-temperature preheating module in a transition fit manner and comprises a blank-overturning mechanism of a vertical rotating structure butted with the discharge end of the blank-supplying module and a blank-conveying mechanism of a horizontal rotating structure butted with the feeding section of the constant-temperature preheating module, a bottle blank output by the blank-supplying module in a positive mode is received by the blank-overturning mechanism and then rotates 180 degrees to an inverted state, and then is guided and transferred to the blank-conveying mechanism;
(3) according to the invention, a plurality of groups of directional preheating units are distributed along the transmission path of the rotary transmission mechanism, a cooling space and a cooling module are arranged between two adjacent groups of directional preheating units, when a bottle blank is transmitted through the cooling space, the cooling module blows air from the top to cool, so that the multi-stage alternate circulation of the bottle blank heating and cooling processes is realized, the heat can fully permeate into the bottle blank in the heating mode, the surface of the bottle blank cannot be melted at high temperature, the internal and external heating balance of the bottle blank is realized, the subsequent bottle blowing quality is ensured, and in addition, the precise control of the constant temperature in the heating space is realized in real time by distributing an air draft structure above the heating unit;
(4) according to the invention, the variable pitch transfer module is arranged by matching with the bottle blowing module, the variable pitch transfer module carries a group of bottle blanks to transfer and feed between the discharge end of the constant temperature preheating module and the feeding end of the bottle blowing module, and is adaptive to the bottle blowing speed, and the variable pitch transfer module can be arranged into a variable pitch transfer integrated structure or a split structure, so that the efficient feeding of the bottle blanks is realized.
In conclusion, the invention has the advantages of reasonable production line layout, compact matching of all working procedures, continuous and efficient feeding and discharging actions, uniform preheating of bottle blanks, high bottle blowing efficiency, high finished product quality and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
FIG. 3 is a side view of a connecting structure of a blank supplying module and a turning blank conveying module according to the present invention;
FIG. 4 is a schematic view of the position relationship between the turning blank-feeding module and the rotary transmission mechanism in the present invention;
FIG. 5 is a schematic view of the overall structure of the constant temperature preheating module according to the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 5;
FIG. 7 is a side view of FIG. 5;
FIG. 8 is an enlarged view of FIG. 7 at B;
FIG. 9 is a front view of the structure of the lamp tube of the present invention;
FIG. 10 is a schematic view of the overall structure of the turning blank-feeding module according to the present invention;
FIG. 11 is an enlarged view at C of FIG. 4;
FIG. 12 is an enlarged view of FIG. 10 at D;
FIG. 13 is a schematic structural diagram of a split pitch-variable relay module according to the present invention;
FIG. 14 is a schematic structural diagram of an integrated pitch-changing transfer module according to the present invention;
FIG. 15 is a schematic view of the overall structure of the product transfer module of the present invention;
fig. 16 is a schematic front view of the turning and blank-conveying module of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" 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" or "second" 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 specifically defined otherwise.
Example one
As shown in fig. 1-2, an automatic production line for blow molding plastic bottles comprises: the blank supply module 10 further includes: the device comprises an overturning blank conveying module 20 butted with the output end of the blank supplying module 10, a constant temperature preheating module 30 butted with the output end of the overturning blank conveying module 20, a bottle blowing module 40 and a pitch-changing transfer module 50 connected and arranged between the constant temperature preheating module 30 and the bottle blowing module 40; further comprising: the finished product transferring module 70, the finished product transferring module 70 is located at one side of the bottle blowing module 40 opposite to the constant-temperature preheating module 30; as shown in fig. 3, the inverted blank-feeding module 20 includes: the automatic blank-turning device comprises a blank-turning mechanism 1 which is vertically and rotationally arranged, and a blank-sending mechanism 2 which is horizontally and rotationally arranged and is butted with the output end of the blank-turning mechanism 1;
after the bottle blanks 60 with the upward bottle openings are transferred to the blank turning mechanism 1 one by the blank supply module 10, the bottle blanks are rotated to the inverted state with the downward bottle openings along with the blank turning mechanism 1, and are guided and transferred to the blank conveying mechanism 2 in the continuous rotating process, and then transferred to the constant-temperature preheating module 30 to be subjected to a multi-stage preheating process with alternating heating and cooling cycles.
Preferably, as shown in fig. 2, the constant temperature preheating module 30 is configured to be a long rotary structure, the bottle blowing module 40 is located at one side of the constant temperature preheating module 30 in the length direction, the turning blank conveying module 20 and the pitch-variable transfer module 50 are located between the constant temperature preheating module 30 and the bottle blowing module 40, and the blank supplying module 10 is located at one side of the constant temperature preheating module 30 in the width direction; after the bottle blank 60 is preheated after rotating for one circle in the constant-temperature preheating module 30, the bottle blank is transferred to the bottle blowing module 40 by the pitch-variable transfer module 50 in a matching manner to perform a bottle blowing process.
In the embodiment, the constant temperature preheating module 30, the pitch-variable transferring module 50, the bottle blowing module 40 and the finished product transferring module 70 are linearly arranged on the frame to form a linear bottle blowing production line, the blank supplying module 10 is arranged at the side part of the linear bottle blowing production line, and a turning blank-conveying module 20 is arranged above the feeding end of the constant-temperature preheating module 30 in a matching manner, the blank-supplying module 1 and the turning blank-conveying module 20 are matched to continuously turn and supply the bottle blanks 60 to the constant-temperature preheating module 30, the constant-temperature preheating module 30 preheats the bottle blanks 60 in a multi-stage preheating mode with alternating heating and cooling cycles, the variable pitch transfer module 50 is used for transferring variable pitch to the bottle blowing module for blow molding, the molded bottles are continuously output by the finished product transfer module 70, the whole production line is reasonable and compact in layout, all processes are efficiently matched, the production efficiency is greatly improved, the bottle blowing quality is guaranteed, and the full-automatic production line is particularly suitable for full-automatic production of plastic bottles such as high-capacity (1.25L) pp infusion bottles and the like.
Preferably, as shown in fig. 10, the blank-turning mechanism 1 includes: the blank receiving device comprises a rotary blank tray 11, wherein a rotating shaft of the rotary blank tray 11 is horizontally arranged, one surface of the rotary blank tray 11, which is opposite to a blank supplying module 10, is arranged as a material receiving surface, the blank supplying module 10 is butted with the top of the material receiving surface, a plurality of blank bottle clamping positions 12 are arranged on the material receiving surface along a circumferential array, and the blank bottle clamping positions 12 are arranged on the material receiving surface; the bottle blank 60 is transferred to the bottle blank clamping position 12 by the blank supply module 10, and then rotates 180 degrees along with the rotating blank tray 11 to the bottom output end of the rotating blank tray 11, and is in an inverted state.
Preferably, as shown in fig. 3, the blank supplying module 10 includes: the conveying channel 101 is obliquely arranged, the output end of the conveying channel 101 is arranged at a low position, and the bottle blank 60 slides down from the conveying channel 101 under the action of the gravity of the bottle blank 60 and is clamped on the blank turning mechanism 1.
In this embodiment, through setting up transmission channel 101 to the slope structure of discharge end low level, and its discharge end docks with the top of turning over base mechanism 1, and just set up the material receiving face that can block and establish bottle base 60 in turning over base mechanism 1 to one side of transmission channel 101, after debugging the match through the feed rate with transmission channel 101 and the rotational speed that turns over base mechanism 1, can realize bottle base 60 landing and automatic card under self action of gravity and locate in the bottle base screens 12 on the material receiving face, the transition transfer process is smooth and easy not have the card pause, and can realize automatic continuous transfer.
It should be noted that the bottle preform blocking position 12 is adapted to the shape of the bottle preform 60, and an opening is formed on a side of the bottle preform blocking position facing the transmission channel 101 to form a half-groove structure for receiving the bottle preform 60.
Preferably, the blank-turning mechanism 1 further comprises: referring to fig. 16, the limiting cover 13 is arranged outside the rotating blank tray 11 in a covering manner, so as to transmit and protect the bottle blanks 60, a limiting channel for the bottle blanks 60 to be conveyed in a rotating manner is formed between the limiting cover 13 and the material receiving surface, so that the bottle blanks 60 can be conveyed in a rotating manner along with the rotating blank tray 11, and the bottle blanks 60 are stably limited in the transferring process and cannot fall off.
Preferably, the blank-turning mechanism 1 further comprises: as shown in fig. 16, the feeding guide 14 is located above the top of the rotating blank tray 11 and is abutted against the output port of the conveying channel 101 to transfer the bottle blanks 60 onto the rotating blank tray 11.
It should be noted that the feeding guide 14 is configured as an arc plate structure, and the installation direction of the arc is adapted to the rotation direction of the rotating blank tray 11, after the bottle blank 60 slides down and is output from the conveying channel 101, the bottle opening is hung on the arc plate, and is further transferred into the bottle blank clamping position 12 under the guiding action of the arc plate.
Preferably, as shown in fig. 11 to 12, the blank feeding mechanism 2 includes: the rotary shaft of the driving plate 21 is vertically arranged, and the discharging guide part 22 is arranged in an arc structure, is arranged outside the circumference of the driving plate 21, and has a guide end part extending into the material receiving surface; the bottle blank 60 at the bottom of the rotating blank tray 11 is transferred to the driving plate 21 under the guiding action of the discharging guiding part 22 and is output along with the rotation of the driving plate 21.
Preferably, as shown in fig. 11, the blank feeding mechanism 2 further includes: and the supporting part 23 is positioned below the drive plate 21 to support the bottle mouth of the bottle blank 60.
In this embodiment, the blank feeding mechanism 2 is abutted to the bottom discharge end of the blank turning mechanism 1, and is composed of a discharge guide portion 22, a drive plate 21 and a support portion 23, wherein the guide end portion of the discharge guide portion 22 extends into the material receiving surface of the rotary blank tray 11, after the bottle blank 60 is transferred to the bottom of the rotary blank tray 11, under the continuous rotation action of the rotary blank tray 11, the discharge guide portion 22 can guide and pull out the bottle blank 60 from the material receiving surface, and then is clamped on the drive plate 21, and is rotated and output under the matching of the drive plate 21 and the support portion 23, the structure is skillfully arranged, and the transition process is smooth.
Preferably, as shown in fig. 12, bottle body bayonets 24 adapted to the shape of the bottle preform 60 are formed in an array on the outer circumference of the dial 21.
In this embodiment, the direction of sending the ejection of compact of base mechanism 2 is the same with the pan feeding direction of slewing transmission mechanism 3 in the constant temperature preheating module 30, and both distribute the setting from top to bottom, realizes both transmission speed phase-matchs through the debugging to realize the continuous transmission of bottle base 60 and shift, the butt joint is shifted smoothly high-efficiently.
Preferably, as shown in fig. 15, the finished product transfer module 70 includes: the bottle-taking mechanism 81, the bottle-turning mechanism 82 and the output end of the bottle-taking mechanism 81 are butted, and the output mechanism 83 is positioned at one side of the bottle-turning mechanism 82 opposite to the bottle-taking mechanism 81;
after the bottle 9 blow-molded by the bottle blowing module 40 is taken out by the bottle taking mechanism 81, the bottle 9 is clamped and turned 180 degrees by the bottle turning mechanism 82 until the bottle mouth faces upwards and is placed on the output mechanism 83, and then the bottle is transmitted and output by the output mechanism 83.
Example two
The same or corresponding parts of this embodiment as those of the above embodiment are designated by the same reference numerals as those of the above embodiment, and only the points different from the above embodiment will be described below for the sake of convenience. This embodiment differs from the above embodiment in that:
preferably, as shown in fig. 4 to 5, the constant temperature preheating module 30 includes: gyration transport mechanism 3, the upset send base module 20 to be located gyration transport mechanism 3 top, bottle base 60 send base module 20 output by the upset to fall in order on the gyration transport mechanism 3, as shown in fig. 6, a plurality of groups are followed gyration transport mechanism 3's transmission path distributes and sets up and cover the directional unit 4 that preheats on it, and adjacent two sets of directional unit 4 that preheats is provided with open structure's cooling space 51 between the unit 4, still includes: and the cooling module 5 is used for cooling the bottle blanks 60 by blowing air from the top when the bottle blanks are conveyed through the cooling space 51.
When preheating the process, bottle base 60 carries out the in-process of rotation transmission by rotation transmission mechanism 3, through directional preheating unit 4, accomplish and get into cooling space 51 after once heating, blow air cooling by cooling module 5, then get into directional preheating unit 4 again and carry out the heating next time, so circulation, realize the multistage circulation in turn of bottle base heating and cooling process, the mode of this kind of intermittent type nature heating, when in the cooling interval, not only can cool down bottle base 60 surface, still make the heat can fully permeate to inside bottle base 60, avoid appearing the overheated and inside not enough "double-layered" phenomenon of being heated of bottle base surface, realize inside and outside thermally equivalent, improve follow-up bottle blowing quality.
The multi-stage alternate circulation preheating method of the heating and cooling process in this embodiment is particularly suitable for preheating pp material bottle preforms which have good flowability, are sensitive to temperature, and have high requirements for heating process.
Preferably, as shown in fig. 5 to 6, the cooling module 5 includes: the cooling device comprises a fan 52 mounted on the rack and an air pipe 53 communicated with the fan 52, wherein each air outlet end of the air pipe 53 is correspondingly arranged at the top of each cooling space 51.
The air ducts 53 in this embodiment are distributed along the length direction of the rotary conveying mechanism 3 at the middle thereof, and are compact in layout.
In addition, it should be noted that, as shown in fig. 8, each air outlet of the air duct 53 correspondingly extends into the cooling space 51, and the air outlet thereof is set to be a linear closing structure 54 along the transmission direction of the bottle blank 60, so that the bottle blank 60 is directionally cooled by concentrated wind power, the cooling efficiency is high, and the influence on the temperature in the left and right directional preheating units 4 is effectively avoided, as shown in fig. 6, and a vent 55 is arranged at the side of the cooling space 51, so that the cold air can be rapidly guided and dissipated, the bottle body can be effectively cooled by a top blowing mode, and the cold air is prevented from blowing to the lamp tube or being retained in the heating box, so that the constant temperature control in the heating space is ensured.
Preferably, as shown in fig. 8, the directional preheating unit 4 includes: the bottle blank heating device comprises a heating box body 41, a heating conveying channel 410 for conveying bottle blanks 60 to pass through, a bottle body heating lamp group 42 and a light reflecting part 43, wherein the heating conveying channel 410, the bottle body heating lamp group 42 and the light reflecting part 43 are arranged in the heating box body 41 along the length direction of the heating box body 41, the bottle body heating lamp group 42 is installed on the heating box body 41 on one side of the heating conveying channel 410, and the light reflecting part 43 is installed on the heating box body 41 on the other side of the heating conveying channel 410 relative to the bottle body heating lamp group 42.
Preferably, the body heating lamp group 42 includes: as shown in fig. 9, a light-transmitting structure 421 is disposed on one side of the light tubes 420 facing the heating and conveying channel 410, and a light-reflecting structure 422 is disposed on one side of the light tubes 420 facing away from the heating and conveying channel 410.
Preferably, the directional preheating unit 4 further comprises: and a bottle mouth cooling mechanism 44, wherein the bottle mouth cooling mechanism 44 is mounted on the heating box body 41 below the bottle body heating lamp group 42.
In this embodiment, the light reflection portion 43 is disposed on one side of the heating box 41 opposite to the body heating lamp group 42, after the heat energy generated by the body heating lamp group 42 is output, the heat energy can be fully reflected to the body through the light reflection portion 43, so as to reduce heat loss, and the lamp tube structure is specially designed, so that the heat energy generated by the lamp tube can be dissipated from one side of the body, and the above structure can maximally and fully and directionally concentrate all the heat on the body, thereby improving heat utilization rate, saving energy, and ensuring the preheating requirement of the bottle blank that the body is heated and the bottle mouth is kept cooled, thereby ensuring the quality of subsequent bottle blowing. In addition, this embodiment adopts novel silicon controlled rectifier temperature control module to control fluorescent tube 420, and the temperature of every infrared lamp tube can the independent control, and the bottle embryo of being convenient for more is heated evenly, and is more energy-conserving.
Preferably, the light reflecting portion 43 is made of polished stainless steel.
Preferably, the light-transmitting structure 421 is a red light tube, the light-reflecting structure 422 is a gold coating disposed on the light tube, the red light tube has the longest wavelength and good light penetration, and the gold coating with higher reflectivity is matched, so that heat generated by the light tube can be dissipated from the side facing the bottle body to the maximum extent, directional dissipation of heat is realized, and heat utilization rate is improved.
Preferably, as shown in fig. 6, the constant temperature preheating module 30 further includes: and the temperature control module 6 is communicated with the top of the directional preheating unit 4 to control the inside of the directional preheating unit 4 to be thermostatically controlled through the air draft effect.
It should be added that a temperature sensor is arranged in the directional preheating unit 4, and the constant temperature preheating module 30 is in signal connection with the temperature sensor through a control system, so as to perform 120 ℃ constant temperature control on the temperature in the heating space of the directional preheating unit 4 in a matching manner.
EXAMPLE III
The same or corresponding parts of this embodiment as those of the above embodiment are designated by the same reference numerals as those of the above embodiment, and only the points different from the above embodiment will be described below for the sake of convenience. This embodiment differs from the above embodiment in that:
preferably, the pitch transferring module 50 includes: a grip transfer unit 71, and a pitch changing unit 72; the clamping and transferring unit 71 and the pitch varying unit 72 are arranged in a split structure or an integrated structure.
Preferably, as shown in fig. 2 and 13, when the pitch-variable relay module 50 is a split structure, the clamping and transferring units 71 are two groups and are respectively arranged at two sides of the pitch-variable unit 72, the bottle blank 60 is clamped and transferred onto the pitch-variable unit 72 by the clamping and transferring unit a 71' for pitch-variable, and then is fed and transferred into the bottle blowing module 40 by the clamping and transferring unit b71 ″ after the pitch-variable is completed;
preferably, as shown in fig. 14, when the pitch-variable relay module 50 is configured as an integrated structure, the pitch-variable unit 72 is stacked on the clamping and transferring unit 71, so that the pitch-variable unit 72 completes pitch-variable in the process that the bottle blank 60 is clamped and fed by the clamping and transferring unit 71 into the bottle blowing module 40, and the efficiency is improved.
Working procedure
The bottle blanks 60 orderly arranged by the blank arranging machine of the blank supplying module 10 are output one by the transmission channel 101, slide down and clamped in the bottle blank clamping position 12 under the action of self gravity, then rotate 180 degrees along with the rotating blank tray 11 to the bottom of the rotating blank tray 11 and are converted into an inverted state, under the action of continuous rotation of the rotating blank tray 11, the bottle blanks 60 are guided and pulled out from the bottle blank clamping position 12 by the discharging guide part 22 and are clamped on the driving plate 21 in a transferring way, and then are output and transferred to the rotary transmission mechanism 3 under the matching of the driving plate 21 and the supporting part 23, in the rotary transmission process, the bottle blanks 60 are heated once by the directional preheating unit 4 and then enter the cooling space 51, are cooled by the air blowing of the cooling module 5 and then enter the directional preheating unit 4 for next heating, and are circulated, in the heating process, the temperature in the directional preheating unit 4 is controlled at the constant temperature of 120 ℃ by the temperature control module 6, the preheated bottle blank 60 is transferred to the bottle blowing module 40 for blow molding through the pitch change of the pitch change transfer module 50, and the molded bottle is taken out from the finished product transfer module 70 and turned over to be in a positive state for output.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Plastic bottle blowing automation line includes:
a blank-supplying module (10),
it is characterized by also comprising:
a turnover blank-feeding module (20) which is connected with the output end of the blank-supplying module (10),
a constant temperature preheating module (30) which is connected with the output end of the turning blank conveying module (20) in an abutting mode,
a bottle blowing module (40), and
the pitch-variable transfer module (50) is connected and arranged between the constant-temperature preheating module (30) and the bottle blowing module (40);
the overturning and blank-conveying module (20) comprises:
a blank-turning mechanism (1) arranged in a vertical rotating manner, and
the blank conveying mechanism (2) is horizontally and rotatably arranged and is in butt joint with the output end of the blank turning mechanism (1);
after the bottle blanks (60) with the upward bottle openings are transferred to the blank turning mechanism (1) one by the blank supply module (10), the bottle blanks rotate to the inverted state with the downward bottle openings along with the blank turning mechanism (1), are guided and transferred to the blank conveying mechanism (2) in the continuous rotating process, and then are transferred to the constant-temperature preheating module (30) to be subjected to a multi-stage preheating process with alternate heating and cooling cycles.
2. The automatic production line for blow molding of plastic bottles according to claim 1, characterized in that,
the constant-temperature preheating module (30) is of a long rotary structure, the bottle blowing module (40) is positioned on one side of the constant-temperature preheating module (30) in the length direction, the overturning blank conveying module (20) and the variable-pitch transfer module (50) are positioned between the constant-temperature preheating module (30) and the bottle blowing module (40), and the blank supplying module (10) is positioned on one side of the constant-temperature preheating module (30) in the width direction;
and after the bottle blank (60) rotates for one circle in the constant-temperature preheating module (30) to complete preheating, the bottle blank is matched and transferred into the bottle blowing module (40) by the pitch-variable transferring module (50) to perform a bottle blowing process.
3. Automatic line for the blow moulding of plastic bottles according to claim 1, characterized in that said thermostatic preheating module (30) comprises:
the turning and blank-conveying module (20) is positioned above the turning and conveying mechanism (3), the bottle blanks (60) are output by the turning and blank-conveying module (20) and then orderly fall onto the turning and conveying mechanism (3),
a plurality of groups of directional preheating units (4) are distributed along the transmission path of the rotary transmission mechanism (3) and are covered on the rotary transmission mechanism, a cooling space (51) with an open structure is arranged between two adjacent groups of directional preheating units (4),
further comprising:
and the cooling module (5) is used for cooling the bottle blanks (60) by blowing air from the top of the cooling module (5) when the bottle blanks are conveyed to pass through the cooling space (51).
4. Automatic line for the blow moulding of plastic bottles according to claim 3, characterized in that said directional preheating unit (4) comprises:
a heating box body (41), wherein a heating conveying channel (410) for conveying the bottle blanks (60) is arranged in the heating box body (41) along the length direction of the heating box body,
a body heating lamp group (42), the body heating lamp group (42) being installed on the heating box body (41) at one side of the heating conveying passage (410), and
the light reflecting part (43), the light reflecting part (43) is installed on the heating box body (41) on the other side of the heating conveying channel (410) relative to the bottle body heating lamp group (42).
5. Automatic line for the blow moulding of plastic bottles according to claim 4, characterized in that said set of body heating lamps (42) comprises:
the light-transmitting structure comprises a plurality of groups of light tubes (420) which cover the bottle body height distribution of the bottle blank (60), wherein one side, facing the heating conveying channel (410), of each light tube (420) is provided with a light-transmitting structure (421), and one side, facing away from the heating conveying channel (410), of each light tube (420) is provided with a light-reflecting structure (422).
6. Automatic line for the blow moulding of plastic bottles according to claim 3, characterized in that said thermostatic preheating module (30) further comprises:
temperature control module (6), temperature control module (6) with the top intercommunication setting of unit (4) is preheated in orientation to preheat unit (4) inside through the convulsions effect and carry out thermostatic control.
7. Automatic line for the blow moulding of plastic bottles according to claim 1, characterized in that said overturning mechanism (1) comprises:
a rotating shaft of the rotating blank tray (11) is horizontally arranged, one surface of the rotating blank tray (11) opposite to the blank supply module (10) is arranged to be a material receiving surface, the blank supply module (10) is butted with the top of the material receiving surface,
bottle blank screens (12), wherein a plurality of bottle blank screens (12) are arranged on the material receiving surface along a circumferential array;
the bottle blank (60) is transferred to the bottle blank clamping position (12) from the blank supply module (10) and then rotates 180 degrees along with the rotating blank tray (11) to the bottom output end of the rotating blank tray (11) to be in an inverted state.
8. The automatic line for the blow moulding of plastic bottles according to claim 1, characterized in that said preform supplying module (10) comprises:
the bottle blank turning mechanism comprises a transmission channel (101), wherein the transmission channel (101) is obliquely arranged and the output end of the transmission channel is arranged at a low position, and the bottle blank (60) slides down from the transmission channel (101) under the action of self gravity and is clamped on the blank turning mechanism (1).
9. The automatic line for the blow moulding of plastic bottles according to claim 7, characterized in that said feeding means (2) comprise:
a dial (21), the axis of rotation of the dial (21) being arranged vertically, an
The discharging guide part (22) is of an arc-shaped structure, is arranged on the outer side of the circumference of the driving plate (21), and the guide end part of the discharging guide part (22) extends into the material receiving surface;
bottle blanks (60) positioned at the bottom of the rotary blank tray (11) are transferred to the driving plate (21) under the guiding action of the discharging guiding part (22) and are output along with the rotation of the driving plate (21).
10. The automatic production line for blow moulding of plastic bottles according to claim 1, characterized in that said pitch transfer module (50) comprises:
a nip transfer unit (71), and
a pitch changing unit (72);
the clamping and transferring unit (71) and the variable pitch unit (72) are arranged into a split structure or an integrated structure:
when the bottle blank conveying device is of a split structure, two groups of clamping and transferring units (71) are arranged, the bottle blanks (60) are clamped and transferred onto a pitch changing unit (72) by a clamping and transferring unit a (71 ') to change the pitch, and then the bottle blanks are fed and transferred into a bottle blowing module (40) by a clamping and transferring unit b (71') after the pitch changing is finished;
when the integrated structure is adopted, the bottle blank (60) is clamped by the clamping and transferring unit (71) and is fed into the bottle blowing module (40), and the pitch change is synchronously completed by the pitch change unit (72).
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| CN202210263203.4A CN114643697B (en) | 2022-03-17 | 2022-03-17 | Automatic production line for plastic bottle blow molding |
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| CN202210263203.4A CN114643697B (en) | 2022-03-17 | 2022-03-17 | Automatic production line for plastic bottle blow molding |
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| CN114643697B CN114643697B (en) | 2024-04-02 |
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| DE4112573A1 (en) * | 1991-04-17 | 1992-10-22 | Pilz Technologie Gmbh | TRANSFER DEVICE FOR DISC-SHAPED WORKPIECES MOLDED FROM AN INJECTION MOLDING MACHINE |
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| CN206926279U (en) * | 2017-04-13 | 2018-01-26 | 佛山市华冠信息科技有限公司 | Plastic bottle blank and its product integrated production line |
| CN109835752A (en) * | 2017-11-27 | 2019-06-04 | 天津市天塑科技集团有限公司第二塑料制品厂 | Inflation film winder |
| CN216655517U (en) * | 2021-11-11 | 2022-06-03 | 南通欧晟智能科技有限公司 | Belt cleaning device is used in former moving equipment spare part processing of new forms of energy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4112573A1 (en) * | 1991-04-17 | 1992-10-22 | Pilz Technologie Gmbh | TRANSFER DEVICE FOR DISC-SHAPED WORKPIECES MOLDED FROM AN INJECTION MOLDING MACHINE |
| CN1200067A (en) * | 1996-09-02 | 1998-11-25 | 日精Asb机械株式会社 | Injection blow molding machine, injection blow molding method and injection molding machine |
| EP2676785A1 (en) * | 2012-06-20 | 2013-12-25 | Stein Maschinenbau GmbH & Co. KG | Pulling-off and reversing device for extruded plastic profiles |
| CN104936762A (en) * | 2012-12-03 | 2015-09-23 | 伊莫拉Sacmi机械合作公司 | Bottling line and method |
| CN206926279U (en) * | 2017-04-13 | 2018-01-26 | 佛山市华冠信息科技有限公司 | Plastic bottle blank and its product integrated production line |
| CN109835752A (en) * | 2017-11-27 | 2019-06-04 | 天津市天塑科技集团有限公司第二塑料制品厂 | Inflation film winder |
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| CN114643697B (en) | 2024-04-02 |
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