A rotary bottle blowing and forming device

By designing a rotary blow molding device, the turntable support drives the blow molding assembly to move between the labeling and extrusion mechanisms, solving the problems of high labor intensity in manual labeling and tedious automatic labeling. This achieves efficient label positioning and blow molding, thereby improving production efficiency.

CN116901402BActive Publication Date: 2026-02-27FOSHAN YUWEI PLASTIC CO LTD
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Patent Information

Application Number
CN202310682741.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-09
Publication Date
2026-02-27
Estimated Expiration
2043-06-09

AI Technical Summary

Technical Problem

In the current plastic bottle production process, manual labeling is labor-intensive, the labeling positions are inconsistent, and the operation of automatic labeling devices is cumbersome, which affects production efficiency.

Method used

Design a rotary blow molding device that combines a rotary drive component, a labeling mechanism, and an extrusion mechanism. The blow molding assembly is driven by a turntable support to pass through the labeling and extrusion mechanisms in sequence, so as to achieve the positioning of the label paper in the molding cavity of the blow molding assembly and the simultaneous molding of the preform.

Benefits of technology

This technology enables the label paper and preform to be formed simultaneously under the mold closing assembly of the blow molding unit, which improves production efficiency, simplifies the operation process, reduces manual intervention, and ensures the consistency of label position.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a rotary bottle blowing forming device, which comprises a rack, an extruding mechanism, a rotary bottle blowing mechanism, a labeling mechanism and a receiving mechanism. The extruding mechanism and the labeling mechanism are arranged on one side of the rotary bottle blowing mechanism, and the receiving mechanism is arranged on the other side of the rotary bottle blowing mechanism. The rotary bottle blowing mechanism comprises a rotating disc support, a rotary driving assembly and a plurality of bottle blowing and die assembling components. The labeling mechanism and the extruding mechanism are arranged on the periphery of the rotating disc support, and the bottle blowing and die assembling components are driven by the rotary driving assembly to pass through the labeling mechanism and the extruding mechanism in sequence. When the bottle blowing and die assembling components pass through the labeling mechanism, the labeling mechanism grabs the label paper into the cavity wall of the forming cavity of the bottle blowing and die assembling components, and then the bottle blowing and die assembling components with the label paper are moved to the extruding mechanism. The blank material output by the discharge die head is die assembled, so that the label paper and the blank material are simultaneously formed under the die assembly of the bottle blowing and die assembling components, and the plastic bottle product after labeling can be obtained.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of bottle blowing molding equipment, in particular to a rotary bottle blowing molding device. BACKGROUND

[0002] Plastic bottles are plastic containers molded by plastic molding equipment through processes such as blow molding and extrusion blow molding, using polyester, polyethylene, polypropylene, etc. as raw materials, and are commonly used for packaging liquids such as daily chemicals and beverages. For the sound field of plastic bottles, rotary bottle blowing molding devices are one of the more common plastic bottle blowing molding equipment due to their high production efficiency and good stability.

[0003] In the production process of plastic bottles, after the plastic bottles are blown and molded in the plastic bottle blowing molding equipment, the molded plastic bottle products still need to be manually labeled with label paper. However, manual labeling has problems such as high labor intensity and inconsistent labeling positions. To solve these problems, the current labeling of plastic bottles usually involves transferring the molded plastic bottles to an automatic labeling device to complete the labeling operation, saving manpower. However, repeated positioning is required in the automatic labeling device, which is cumbersome to operate and affects production efficiency. SUMMARY

[0004] The present application aims to provide a rotary bottle blowing molding device to solve one or more technical problems in the background art.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] A rotary bottle blowing molding device, comprising a rack, an extrusion mechanism, a rotary bottle blowing mechanism, a labeling mechanism, and a receiving mechanism, wherein the rotary bottle blowing mechanism is provided on the rack, the extrusion mechanism and the labeling mechanism are provided on one side of the rotary bottle blowing mechanism, and the receiving mechanism is provided on the other side of the rotary bottle blowing mechanism.

[0007] The rotary bottle blowing mechanism comprises a turntable support, a rotary drive assembly, and a plurality of bottle blowing mold assembly components. The rotary drive assembly is used to drive the rotation of the turntable support, and the plurality of bottle blowing mold assembly components are evenly distributed on the outer side of the turntable support. The output end of the extrusion mechanism is connected with a discharge die head, which is provided above the labeling mechanism. The extrusion mechanism is used to add hot melt raw materials to the discharge die head, and the discharge die head is used to extrude the hot melt raw materials into strip-shaped blank materials and keep the blank materials inflated.

[0008] The rotary drive assembly is used to drive the bottle blowing mold assembly components to pass through the output end of the labeling mechanism, the output end of the discharge die head, and the input end of the receiving mechanism in sequence.

[0009] When the blow molding assembly rotates to the labeling mechanism, the blow molding assembly is in an open mold state, and the labeling mechanism grabs the label paper into the cavity wall of the blow molding assembly forming cavity; when the blow molding assembly continues to rotate to the discharge die head, the blow molding assembly is located on both sides of the parison extruded by the discharge die head, at which time the blow molding assembly is converted from the open mold state to the closed mold state; when the blow molding assembly rotates above the material receiving mechanism, the blow molding assembly is converted from the closed mold state to the open mold state, so that the formed product falls into the material receiving mechanism.

[0010] Preferably, the labeling mechanism comprises a label pushing-out assembly and a clamping feeding assembly, the label pushing-out assembly is arranged at the bottom of the rotating disc support, and the clamping feeding assembly is arranged at one end of the label pushing-out assembly; the label pushing-out assembly is used to store the label paper to be labeled, and the clamping feeding assembly is used to grab the label paper in the label pushing-out assembly into the cavity wall of the blow molding assembly forming cavity.

[0011] Preferably, the clamping feeding assembly comprises a rotating support, a feeding servo motor, an axial translation cylinder, at least two radial translation cylinders, and at least two label suction cups; the label suction cups are arranged on one side of the rotating support, the rotating shaft end of the feeding servo motor is connected with the rotating support, and the feeding servo motor is used to drive the rotating support to rotate; the label pushing-out assembly and the blow molding assembly are located on the movement track of the label suction cups, when one of the label suction cups is located at one end of the label pushing-out assembly, the other label suction cup is located inside the blow molding assembly.

[0012] The radial translation cylinders are further arranged between the label suction cups and the rotating support.

[0013] The axial translation cylinder is arranged in parallel with the shaft center of the rotating disc support, and the rotating support and the feeding servo motor are arranged at the telescopic end of the axial translation cylinder.

[0014] Preferably, the label pushing-out assembly comprises a label limiting groove, a pushing-out conveying belt, a baffle cylinder, and a limiting electric push rod; the label limiting groove is arranged below the rotating disc support, the opening part of the label limiting groove is arranged towards the side of the label suction cup, the pushing-out conveying belt is arranged at the bottom of the label limiting groove, the telescopic end of the baffle cylinder is arranged at the end of the label limiting groove, the telescopic end of the baffle cylinder is arranged outside the opening part of the label limiting groove, and the limiting electric push rod is arranged at one end of the label limiting groove, and the telescopic end of the limiting electric push rod is arranged towards the opening part of the label limiting groove.

[0015] Preferably, the labeling mechanism comprises two groups, and the two groups of labeling mechanisms are symmetrically arranged.

[0016] Preferably, the bottle blowing and mould closing assembly comprises a first mould plate, a second mould plate, a first mould, a second mould, a mould closing guide rod, a first mould closing cylinder and a second mould closing cylinder, the mould closing guide rod is parallel to the shaft of the rotating disc support and is arranged on the outer periphery of the rotating disc support, the first mould plate and the second mould plate are arranged on the mould closing guide rod in a sliding manner, one end of the first mould closing cylinder is connected to one inner side of the rotating disc support, the first mould closing cylinder is connected to the first mould plate, one end of the second mould closing cylinder is connected to the other inner side of the rotating disc support, the second mould closing cylinder is connected to the second mould plate, the first mould and the second mould are respectively arranged on the first mould plate and the second mould plate in a detachable manner, the first mould closing cylinder and the second mould closing cylinder are used to jointly act on the first mould plate and the second mould plate to make the first mould plate and the second mould plate close to or separate from each other, so as to realize mould closing or mould opening of the first mould and the second mould, a first forming cavity is arranged on the side opposite to the first mould, and a second forming cavity is arranged on the side opposite to the second mould.

[0017] Preferably, the bottle blowing and mould closing assembly further comprises a first adjustable stroke cylinder and a second adjustable stroke cylinder, the first adjustable stroke cylinder is arranged between one end of the first mould closing cylinder and one inner side of the rotating disc support, and the second adjustable stroke cylinder is arranged between one end of the second mould closing cylinder and the other inner side of the rotating disc support.

[0018] Preferably, the bottle blowing and mould closing assembly further comprises a vacuum air suction assembly, a first air hole is arranged in the first mould plate and the second mould plate, a second air hole is arranged in the first mould and the second mould and is connected to the cavity wall of the first forming cavity and the second forming cavity respectively, and one end of the vacuum air suction assembly is connected to the first air hole and the second air hole in sequence.

[0019] Preferably, the material receiving mechanism comprises a hopper and an output conveying belt, the hopper is arranged on the other side of the rotating bottle blowing mechanism, and one end of the output conveying belt is arranged below the hopper.

[0020] The beneficial effects of the present application are: the present application sets the labeling mechanism and the extrusion mechanism on the outer periphery of the rotating disc support, and drives the blow molding assembly through the labeling mechanism and the extrusion mechanism by the rotary driving assembly, so that when the blow molding assembly passes through the labeling mechanism, the labeling mechanism grabs the label paper into the cavity wall of the blow molding assembly forming cavity, and then moves the blow molding assembly with the label paper to the extrusion mechanism, and the blank is output from the discharge die, and the blank is molded, so that the label paper and the blank are molded at the same time under the molding of the blow molding assembly, that is, the labeled plastic bottle product is obtained. Compared with the prior art, the label paper is positioned by being grabbed into the cavity wall of the forming cavity by the labeling mechanism, so that the label paper is molded at the same time with the blank in the forming cavity, and the operations of blow molding and labeling are completed at the same time, and the production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings further illustrate the present application, but the contents in the drawings do not constitute any limitation on the present application.

[0022] Figure 1 is a schematic diagram of the arrangement of one embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the cooperation of the labeling mechanism and the blow molding assembly of one embodiment of the present application;

[0024] Figure 3 is a structural schematic diagram of the labeling mechanism of one embodiment of the present application;

[0025] Figure 4 is a structural schematic diagram of the blow molding assembly of one embodiment of the present application.

[0026] Among them: rack 1, extrusion mechanism 2, rotary blow molding mechanism 3, labeling mechanism 4, material receiving mechanism 5, discharge die 21, rotating disc support 31, rotary driving assembly 32, blow molding assembly 33, label pushing assembly 41, clamping feeding assembly 42, rotating support 421, axial translation cylinder 422, radial translation cylinder 423, label suction cup 424, feeding servo motor 425, label limiting groove 411, pushing conveying belt 412, baffle cylinder 413, limiting electric push rod 414, opening part 415, label paper 416, first mold plate 331, second mold plate 332, first mold 333, second mold 334, molding guide rod 335, first molding cylinder 336, second molding cylinder 337, first adjustable stroke cylinder 338, second adjustable stroke cylinder 339, vacuum suction assembly 340, hopper 51, output conveying belt 52. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0028] The rotary bottle blowing device of the embodiment, referring to the accompanying drawings Figure 1 , comprising a rack 1, an extrusion mechanism 2, a rotary blowing mechanism 3, a labeling mechanism 4 and a receiving mechanism 5, the rotary blowing mechanism 2 is arranged on the rack 1, the extrusion mechanism 2 and the labeling mechanism 4 are arranged on one side of the rotary blowing mechanism 3, and the receiving mechanism 5 is arranged on the other side of the rotary blowing mechanism 3;

[0029] The rotary blowing mechanism 3 comprises a rotating disc support 31, a rotary driving assembly 32 and a plurality of bottle blowing and molding assemblies 33, the rotary driving assembly 32 is used for driving the rotating disc support 31 to rotate, and the plurality of bottle blowing and molding assemblies 33 are uniformly distributed on the outer side of the rotating disc support 31; the output end of the extrusion mechanism 2 is connected with a discharging die head 21, the discharging die head 21 is arranged above the labeling mechanism 4, and the extrusion mechanism 2 is used for adding hot-melt raw materials into the discharging die head 21; the discharging die head 21 is used for extruding the hot-melt raw materials to form strip-shaped blank materials and making the blank materials keep expanding;

[0030] The rotary driving assembly 32 is used for driving the bottle blowing and molding assemblies 33 to pass through the output end of the labeling mechanism 4, the output end of the discharging die head 21 and the input end of the receiving mechanism 5 in sequence;

[0031] When the bottle blowing and molding assembly 33 rotates to the labeling mechanism 4, the bottle blowing and molding assembly 33 is in an open mold state, and the labeling mechanism 4 grabs the label paper 416 into the cavity wall of the molding cavity of the bottle blowing and molding assembly 33; when the bottle blowing and molding assembly 33 continues to rotate to the discharging die head 21, the bottle blowing and molding assembly 33 is located on both sides of the blank material extruded by the discharging die head 21, at this time, the bottle blowing and molding assembly 33 is converted from the open mold state to the closed mold state; when the bottle blowing and molding assembly 33 rotates above the receiving mechanism 5, the bottle blowing and molding assembly 33 is converted from the closed mold state to the open mold state, so that the molded product falls into the receiving mechanism 5.

[0032] The present application sets the labeling mechanism 4, the extrusion mechanism 2 and the receiving mechanism 5 on the outer periphery of the rotating disc support 31, and drives the bottle blowing and molding assemblies 33 to pass through the labeling mechanism 4, the extrusion mechanism 2 and the receiving mechanism 5 in sequence through the rotary driving assembly 32, so that when the bottle blowing and molding assemblies 33 pass through the labeling mechanism 4, the labeling mechanism 4 grabs the label paper 416 into the cavity wall of the molding cavity of the bottle blowing and molding assembly 33, then the bottle blowing and molding assembly 33 with the label paper 416 is moved to the extrusion mechanism 2 to mold the blank material output by the discharging die head 21, thereby the label paper 416 and the blank material are molded at the same time under the molding of the bottle blowing and molding assembly 33, and finally the labeled plastic bottle product moves to the receiving mechanism 5 for collection. Compared with the prior art, the positioning of the label paper 416 is realized by grabbing the label paper 416 into the cavity wall of the molding cavity through the labeling mechanism 4, so that the label paper 416 is molded at the same time with the blank material in the molding cavity, and the operations of bottle blowing and labeling are completed at the same time, and the production efficiency is high.

[0033] Preferably, referring to the accompanying drawings Figure 2 and 3 The labeling mechanism 4 comprises a label pushing assembly 41 and a clamping feeding assembly 42, the label pushing assembly 41 is arranged at the bottom of the rotary disc support 31, the clamping feeding assembly 42 is arranged at one end of the label pushing assembly 41, the label pushing assembly 41 is used for storing the label paper 416 to be labeled, and the clamping feeding assembly 42 is used for grabbing the label paper 416 in the label pushing assembly 41 to the cavity wall of the forming cavity of the bottle blowing and combining assembly 33.

[0034] Preferably, the clamping feeding assembly 42 comprises a rotating support 421, a feeding servo motor 425, an axial translation cylinder 422, at least two radial translation cylinders 423 and at least two label suction cups 424, the label suction cups 424 are arranged on one side of the rotating support 421, and the label suction cups 424 are used for sucking the label paper 416 to be labeled in the label pushing assembly 41 to realize grabbing of the label paper 416.

[0035] The rotating shaft end of the feeding servo motor 425 is connected with the rotating support 421, the feeding servo motor 425 is used for driving the rotating support 421 to rotate, and the label pushing assembly 41 and the bottle blowing and combining assembly 33 are located on the movement track of the label suction cup 424. When one of the label suction cups 424 is located at one end of the label pushing assembly 41, the other label suction cup 424 is located inside the bottle blowing and combining assembly 33. Through the driving of the feeding servo motor 425 to the rotation of the rotating support 421, the two label suction cups 424 are circulated between the label pushing assembly 41 and the bottle blowing and combining assembly 33. When one of the label suction cups 424 is located at one end of the label pushing assembly 41, the label suction cup 424 can suck the label paper 416 on the label pushing assembly 41, and at this time, the other label suction cup 424 is located inside the bottle blowing and combining assembly 33, and the label paper 416 sucked by the label suction cup 424 in the last cycle is placed in the cavity wall of the forming cavity inside the bottle blowing and combining assembly 33. Therefore, the driving of the feeding servo motor 425 to the rotation of the rotating support 421 can complete the two actions of placing the label paper 416 and sucking the next label paper 416 to be placed, thereby improving the production efficiency.

[0036] The radial translation cylinder 423 is further arranged between the label suction cup 424 and the rotating support 421. Since the straight line distance between the label pushing assembly 41 and the bottle blowing and combining assembly 33 and the rotating shaft axis of the rotating support 421 is not equal, the radial translation cylinder 423 is arranged to adjust the radial position of the label suction cup 424, so as to facilitate the sucking and placing of the label paper 416 by the label suction cup 424.

[0037] The axial translation cylinder 422 is arranged in parallel with the axis of the rotating disc support 31, and the rotating support 421 and the feeding servo motor 425 are arranged at the telescopic end of the axial translation cylinder 422. By arranging the axial translation cylinder 422, the rotating disc support 31 and the feeding servo motor 425 are driven to translate along the axis of the rotating disc support 31, thereby driving the label suction disc 424 to move close to or away from the label pushing assembly 41 / blow-mold assembly 33 forming cavity, so that the label suction disc 424 timely moves away from the label pushing assembly 41 after sucking the label paper 416 from the label pushing assembly 41, and timely moves away from the rotating disc support 31 which keeps moving after the label suction disc 424 places the label paper 416 in the blow-mold assembly 33 forming cavity. Thus, the movement of the label suction disc 424 does not interfere with the movement of the label pushing assembly 41 / blow-mold assembly 33, and the stability of the device operation is improved.

[0038] Preferably, the label pushing assembly 41 comprises a label limiting groove 411, a pushing conveying belt 412, a baffle cylinder 413 and a limiting electric push rod 414. The label limiting groove 411 is arranged below the rotating disc support 31, and the opening part 415 of the label limiting groove 411 is arranged towards the label suction disc 424 side. The label limiting groove 411 is used for storing the label paper 416 to be pasted, and plays a role of positioning the label paper 416, so that the label suction disc 424 can be placed in the forming cavity without adjustment after being taken away, thereby saving the operation of secondary positioning and improving the production efficiency.

[0039] The pushing conveying belt 412 is arranged at the bottom of the label limiting groove 411, and is used for driving the label paper 416 in the label limiting groove 411 to move towards the opening part 415 of the label limiting groove 411, so as to facilitate the label suction disc 424 to suck the label paper 416 to be pasted located at the outermost side of the opening part 415 of the label limiting groove 411.

[0040] The telescopic end of the baffle cylinder 413 is arranged at the end of the label limiting groove 411, and is arranged outside the opening part 415 of the label limiting groove 411. By arranging the baffle cylinder 413, when the telescopic end of the baffle cylinder 413 is extended to the front of the opening part 415 of the label limiting groove 411, the telescopic end of the baffle cylinder 413 abuts against the label paper 416 to be pasted located at the outermost side of the opening part 415 of the label limiting groove 411, so as to avoid the label paper 416 from falling; when the baffle cylinder 413 is retracted, the telescopic end of the baffle cylinder 413 is located outside the opening part 415 of the label limiting groove 411, thereby facilitating the label suction disc 424 to suck the label paper 416.

[0041] The limiting electric push rod 414 is arranged at one end of the label limiting groove 411, and the telescopic end of the limiting electric push rod 414 is arranged towards the opening part 415 of the label limiting groove 411. Thus, under the pushing of the limiting electric push rod 414, the label paper 416 is kept in a vertical state, facilitating the label suction cup 424 to suck the label paper 416.

[0042] Preferably, the labeling mechanism 4 is two groups, and the two groups of labeling mechanisms 4 are symmetrically arranged. By arranging the two groups of symmetrically arranged labeling mechanisms 4, the front and back surfaces of the plastic bottle are labeled. Thus, the bottle blowing molding device of the embodiment can label and mold the plastic bottle with labels on the front and back surfaces.

[0043] Preferably, referring to the accompanying Figure 4 The bottle blowing mold closing assembly 33 comprises a first mold plate 331, a second mold plate 332, a first mold 333, a second mold 334, a mold closing guide rod 335, a first mold closing cylinder 336, and a second mold closing cylinder 337. The mold closing guide rod 335 is parallel to the shaft center of the turntable support 31 and is arranged on the outer periphery of the turntable support 31. The first mold plate 331 and the second mold plate 332 are slidably arranged on the mold closing guide rod 335 in opposite directions. The telescopic end of the first mold closing cylinder 336 is connected to one inner side of the turntable support 31, and the first mold closing cylinder 336 is connected to the first mold plate 331. The telescopic end of the second mold closing cylinder 337 is connected to the other inner side of the turntable support 31, and the second mold closing cylinder 337 is connected to the second mold plate 332. The first mold 333 and the second mold 334 are respectively detachably arranged on the first mold plate 331 and the second mold plate 332. The first mold closing cylinder 336 and the second mold closing cylinder 337 are used to jointly act on the first mold plate 331 and the second mold plate 332 to move them closer or farther apart, so as to realize mold closing or mold opening of the first mold 333 and the second mold 334. A first molding cavity is formed on the side opposite to the first mold 333 of the second mold 334, and a second molding cavity is formed on the side opposite to the second mold 334 of the first mold 333.

[0044] Preferably, the bottle blowing mold closing assembly 33 further comprises a first adjustable stroke cylinder 338 and a second adjustable stroke cylinder 339. The first adjustable stroke cylinder 338 is arranged between the telescopic end of the first mold closing cylinder 336 and one inner side of the turntable support 31, and the second adjustable stroke cylinder 339 is arranged between the telescopic end of the second mold closing cylinder 337 and the other inner side of the turntable support 31. By arranging the first adjustable stroke cylinder 338 and the second adjustable stroke cylinder 339, the distance between the first mold plate 331 and the second mold plate 332 can be adjusted, which is suitable for the installation of molds with different thicknesses. Thus, the bottle blowing molding device of the embodiment can be used for the molding of plastic bottles with different sizes.

[0045] Preferably, the bottle clamping assembly 33 further comprises a vacuum suction assembly 340, the first mold plate 331 and the second mold plate 332 are both provided with a first air hole, the first mold 333 and the second mold 334 are both provided with a second air hole communicated with the first cavity wall and the second cavity wall respectively, and the suction end of the vacuum suction assembly 340 is connected with the first air hole and the second air hole in sequence. Thus, the first cavity wall and the second cavity wall are generated with negative pressure by the vacuum suction assembly 340, so that the label paper 416 is adhered to the first cavity wall and the second cavity wall, and the label paper 416 is prevented from being deviated in the process of clamping, and the effect of label sticking is ensured.

[0046] Preferably, the material receiving mechanism 5 comprises a hopper 51 and an output conveyor 52, the hopper 51 is arranged on the other side of the rotary bottle blowing mechanism 3, and one end of the output conveyor 52 is arranged below the hopper 51. The hopper 51 is used for guiding the finished plastic bottles to fall into the output conveyor 52, and the output conveyor 52 is used for transferring the finished plastic bottles to the next process.

[0047] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be explained as the limitation of the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without any creative labor, and these embodiments will fall into the protection scope of the present application.

Claims

1. A rotary bottle blowing and forming apparatus characterized by, The device comprises a rack, an extrusion mechanism, a rotary blow molding mechanism, a labeling mechanism and a receiving mechanism, the rotary blow molding mechanism is arranged on the rack, the extrusion mechanism and the labeling mechanism are arranged on one side of the rotary blow molding mechanism, and the receiving mechanism is arranged on the other side of the rotary blow molding mechanism; The rotary blow molding mechanism comprises a rotating disc support, a rotary driving assembly and a plurality of blow molding and combining assemblies, the rotary driving assembly is used for driving the rotating disc support to rotate, and the blow molding and combining assemblies are uniformly distributed on the outside of the rotating disc support; the output end of the extrusion mechanism is connected with a discharging die head, the discharging die head is arranged above the labeling mechanism, the extrusion mechanism is used for adding hot melt raw materials into the discharging die head, and the discharging die head is used for extruding the hot melt raw materials to form strip-shaped blank materials and keeping the blank materials in an expanded state; The rotary driving assembly is used for driving the blow molding and combining assemblies to pass through the output end of the labeling mechanism, the output end of the discharging die head and the input end of the receiving mechanism in sequence; When the blow molding and combining assemblies rotate to the labeling mechanism, the blow molding and combining assemblies are in an open mold state, the labeling mechanism grabs label paper into the cavity wall of the blow molding and combining assemblies; when the blow molding and combining assemblies continue to rotate to the discharging die head, the blow molding and combining assemblies are located on both sides of the blank materials extruded by the discharging die head, at this time, the blow molding and combining assemblies are converted from the open mold state to the closed mold state; when the blow molding and combining assemblies rotate above the receiving mechanism, the blow molding and combining assemblies are converted from the closed mold state to the open mold state, so that the formed products fall into the receiving mechanism; The labeling mechanism comprises a label pushing-out assembly and a clamping and feeding assembly, the label pushing-out assembly is arranged at the bottom of the rotating disc support, the clamping and feeding assembly is arranged at one end of the label pushing-out assembly, the label pushing-out assembly is used for storing label paper to be labeled, and the clamping and feeding assembly is used for grabbing the label paper in the label pushing-out assembly into the cavity wall of the blow molding and combining assemblies; The clamping and feeding assembly comprises a rotating support, a feeding servo motor, an axial translation cylinder, at least two radial translation cylinders and at least two label suction cups, the label suction cups are arranged on one side of the rotating support, the rotating shaft end of the feeding servo motor is connected with the rotating support, the feeding servo motor is used for driving the rotating support to rotate, the label pushing-out assembly and the blow molding and combining assemblies are located on the motion track of the label suction cups, when one of the label suction cups is located at one end of the label pushing-out assembly, the other label suction cup is located on the inside of the blow molding and combining assemblies; The radial translation cylinders are further arranged between the label suction cups and the rotating support; The axial translation cylinder is arranged in parallel with the shaft center of the rotating disc support, and the rotating support and the feeding servo motor are arranged at the telescopic end of the axial translation cylinder. The label pushing-out assembly comprises a label limiting groove, a pushing-out conveying belt, a baffle air cylinder and a limiting electric push rod, the label limiting groove is arranged below the rotary disc support, the opening part of the label limiting groove is arranged towards the label sucking disc side, the pushing-out conveying belt is arranged at the bottom of the label limiting groove, the telescopic end of the baffle air cylinder is arranged at the end of the label limiting groove, the telescopic end of the baffle air cylinder is arranged outside the opening part of the label limiting groove, the limiting electric push rod is arranged at one end of the label limiting groove, and the telescopic end of the limiting electric push rod is arranged towards the opening part of the label limiting groove. The labeling mechanism is two groups, and the two groups of labeling mechanisms are symmetrically arranged. The bottle blowing mold closing assembly comprises a first mold plate, a second mold plate, a first mold, a second mold, a mold closing guide rod, a first mold closing air cylinder and a second mold closing air cylinder, the mold closing guide rod is parallel to the shaft center of the rotary disc support and arranged on the outer periphery of the rotary disc support, the first mold plate and the second mold plate are slidably arranged on the mold closing guide rod, the telescopic end of the first mold closing air cylinder is connected with one inner side of the rotary disc support, the first mold closing air cylinder is connected with the first mold plate, the telescopic end of the second mold closing air cylinder is connected with the other inner side of the rotary disc support, and the second mold closing air cylinder is connected with the second mold plate, the first mold and the second mold are respectively detachably arranged on the first mold plate and the second mold plate, and the first mold closing air cylinder and the second mold closing air cylinder are used to jointly act on the first mold plate and the second mold plate to make the first mold plate and the second mold plate close or separate, so as to realize mold closing or mold opening of the first mold and the second mold, and a first forming cavity is arranged on the side opposite to the first mold and the second mold. The bottle blowing mold closing assembly further comprises a first adjustable stroke air cylinder and a second adjustable stroke air cylinder, the first adjustable stroke air cylinder is arranged between the telescopic end of the first mold closing air cylinder and one inner side of the rotary disc support, and the second adjustable stroke air cylinder is arranged between the telescopic end of the second mold closing air cylinder and the other inner side of the rotary disc support.

2. A rotary bottle blowing and forming apparatus according to claim 1, wherein The bottle blowing mold closing assembly further comprises a vacuum air suction assembly, a first air hole is arranged in the first mold plate and the second mold plate, a second air hole is arranged in the first mold and the second mold and connected with the cavity wall of the first forming cavity and the second forming cavity respectively, and the air suction end of the vacuum air suction assembly is connected with the first air hole and the second air hole in sequence.

3. A rotary bottle blowing and forming apparatus according to claim 1, wherein The material receiving mechanism comprises a hopper and an output conveying belt, the hopper is arranged on the other side of the rotary bottle blowing mechanism, and one end of the output conveying belt is arranged below the hopper.

Citation Information

Patent Citations

  • Method for in-mold labeling of a blow molded article

    US4919879A