Bottle embryo orientation mechanism
Technical Field
The invention relates to the field of bottle blowing, in particular to a bottle embryo orientation mechanism.
Background
The round container has the advantages of convenient manufacture, uniform wall thickness of the blank, high production efficiency and the like, but the round container has the defects of the utilization rate of a transportation tool used during transportation or the utilization rate of the volume used when the round container is arranged in a box of only 75 percent at maximum, and the packaged objects with the same volume need more transportation volume, while the square container has the advantages of high effective volume utilization rate, convenient transportation and packaging, large mark surface and stable storage, but has the defects of poor air bearing capacity as the round container is stressed, the square container is easy to expand and deform outwards when being stressed, and the flat container is improved aiming at the defects of the round container and the square container, integrates the advantages of the round container and the square container, has excellent mechanical property in strength and deformation, and is increasingly developed and applied to packaging of daily chemical, edible oil, wine and other products at present.
In the case of vertical flat containers, it is important that the quality of the blow molded flat container is affected if the material distribution is too thick at the long side, and thus, it is ensured that a high quality flat container is produced, and the bottle preform is heated in the heating furnace in a symmetrical heating manner such that the bottle preform itself is rotated at least at the longitudinal portion 11 thereof to a temperature higher than the remaining portion 12 of the bottle preform, as shown in fig. 1, and the heated bottle preform is brought into the exact direction in the cavity as shown in fig. 2, i.e., the portion having a high heating temperature faces the long side 13 of the cavity and the portion having a low heating temperature faces the short side of the cavity, as shown in fig. 3. However, if the bottle embryo is precisely oriented in the die cavity, high-efficiency and high-quality bottle blowing is realized, when the heated bottle embryo is not separated from the heating head and is just clamped by the mechanical clamping hand, the bottle embryo at the moment must be precisely oriented on the heating head, and aiming at the problem, the prior bottle blowing machine generally adopts a special guide rail box to realize the function, and the structure is responsible, the processing difficulty is high and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a bottle embryo orientation mechanism which can be oriented accurately, has a simple structure and high production efficiency.
The bottle embryo orientation mechanism comprises a transmission shaft, wherein a sprocket wheel which rotates along with the transmission shaft and is positioned below the transmission shaft and a turntable which is positioned above the transmission shaft are arranged on the transmission shaft, a plurality of sliding components which rotate along with the transmission shaft and can lift are connected to the turntable, a plurality of chain link frame components which rotate along with the sprocket wheel and can lift along with the sliding components are arranged below the sliding components, the sliding components comprise a shifting fork which is arranged at the bottom end of the shifting fork, the shifting fork comprises a connecting block which is used for being connected with the bottom end of the sliding components, an inserting plate which protrudes outwards is arranged at the edge of the connecting block, the free end of the inserting plate is an inclined plane with an inclined angle, the chain link frame component comprises a transmission sleeve which is arranged at the top end of the transmission sleeve, a groove is arranged on the side wall of the transmission sleeve, the groove is opposite to the shifting fork on the sliding components, when the chain link frame component drives a bottle embryo to rotate to be opposite to any sliding component, a part of the inclined plane on the shifting fork is inserted into the groove, and contacts with the side wall of the groove, and the inclined plane on the inserting plate is completely attached to the side wall of the groove along with rotation of the chain link frame component.
According to the bottle embryo orientation mechanism disclosed by the invention, the transmission shaft rotates to drive the turntable and the chain wheel to rotate, the turntable drives the plurality of sliding assemblies to rotate, the chain wheel drives the plurality of chain link frame assemblies to rotate through the tensioning effect, the heating head of the chain link frame assembly is inserted into a bottle to be added Wen Pingpei before the chain link frame assembly rotates to the heating part, then the chain link frame assembly drives the bottle embryo to continue to rotate, the bottle embryo is driven to enter the lower part of the sliding assembly after the bottle embryo is heated symmetrically for two times, when the chain link frame assembly drives the bottle embryo to enter the lower part of the sliding assembly, the chain link frame assembly enters the lower part of the sliding assembly, and the groove of the transmission sleeve on the chain link frame assembly is contacted with the inclined surface part on the plugboard of the poking fork, relative motion can be generated between the chain link frame assembly and the sliding assembly due to friction force, so that the transmission sleeve drives the mandrel to stop after the side wall of the groove of the transmission sleeve is completely attached to the inclined surface of the plugboard of the poking fork, the bottle embryo is enabled to rotate to a preset angle, the angle is the angle of the plugboard on the bottle embryo, the bottle embryo is guaranteed to be accurately oriented, and the bottle embryo can be clamped in a flat and aligned process after the bottle embryo is accurately aligned with the plugboard, and the bottle embryo can be precisely aligned with a bottle embryo, and can be precisely aligned by a high-oriented, and can be realized by a high-precision and a production process, and can be realized by a simple and a bottle.
Drawings
FIG. 1 is a schematic diagram of a bottle preform.
Fig. 2 and 3 are schematic views showing the placement structure of the bottle preform in the flat blowing mold.
Fig. 4 and 5 are schematic structural views of the present invention.
Fig. 6 is a partial enlarged view of a portion a in fig. 5.
FIG. 7 is a schematic view of a slide assembly, link frame assembly, and drive shaft, sprocket, and turntable connection.
Fig. 8 is a schematic view of a slide assembly.
FIG. 9 is a schematic view of a link frame assembly.
FIG. 10 is a schematic view of the change of the contact surface between the driving sleeve and the shifting fork (i.e., the partial enlarged view in the direction E-E in FIG. 4).
FIG. 11 is a schematic view of a mechanical gripper for gripping a bottle preform (i.e., a partially enlarged view in the direction K-K in FIG. 4).
Detailed Description
A bottle embryo orientation mechanism is shown in fig. 4-11, and comprises a transmission shaft 1, a sprocket 2 which rotates with the transmission shaft and is positioned below the transmission shaft and a rotary table 3 positioned above the transmission shaft, a plurality of sliding components which rotate with the rotary table 3 and can lift with the sliding components are connected to the rotary table 3, a plurality of chain link frame components which rotate with the sprocket 2 and can lift with the sliding components are arranged below the sliding components, the sliding components comprise a shifting fork arranged at the bottom end of the shifting fork, the shifting fork comprises a connecting block 4 used for being connected with the bottom end of the sliding components, an inserting plate 5 protruding outwards is arranged at the edge of the connecting block 4, the free end of the inserting plate 5 is provided with an inclined surface 6 with an inclined angle, the chain link frame components comprise a transmission sleeve 7 arranged at the top end of the transmission sleeve 7, a groove 8 is arranged on the side wall of the transmission sleeve 7, the groove 8 is opposite to the shifting fork on the sliding components, the chain link frame components drive bottle embryo 9 to rotate until the shifting fork 5 is opposite to any sliding component after being heated, a part of the inclined surface 6 on the shifting fork 5 contacts with the side wall of the groove 8, and the inclined surface 6 on the chain link frame components completely contacts with the side wall of the groove 8 due to rotation 6 on the side wall of the chain link frame components.
The bottle embryo orientation mechanism comprises a rotary table 3, a guide rod 11 and a sliding rod 12 are vertically penetrated through the rotary table 10, the guide rod 11 and the sliding rod 12 penetrate through the rotary table 3 and can slide up and down relative to the rotary table 3, a positioning plate 13 is integrally connected to the lower ends of the guide rod 11 and the sliding rod 12, a connecting block 4 of a shifting fork is simultaneously connected to the bottom ends of the sliding rod 12 and the positioning plate 13 through a fastener, a pin shaft 14 is arranged on the side wall of the rotary table 10, a roller 15 capable of rotating relative to the pin shaft 14 is further arranged on the side wall of the rotary table 10, the bottle embryo orientation mechanism further comprises a cam guide rail matched with the roller 15 of the rotary table, the roller 15 rolls along the cam guide rail, the sliding block 10 is driven to be upgraded through the shape of the height of the cam guide rail, and then the guide rod 11, the sliding rod 12 and the shifting fork are driven to lift. The rollers 15 may be rolling bearings and the cam tracks are prior art. The roller 15 runs on the cam guide rail to drive the slide bar 12, the guide bar 11 and the shifting fork to lift, so that the shifting fork drives the chain link frame assembly to lift, and the heating head 17 can be separated from the bottle blank 9 clamped by the mechanical clamping hand 18. After the sliding component is lifted, the sliding component can be lowered by self gravity to restore to the original position.
The side wall of the turntable 3 is provided with a turntable annular groove 19, the sliding component is arranged in the turntable annular groove 19, and a first return spring 20 is arranged on the guide rod 11 and between the upper end wall of the turntable annular groove 19 and the upper surface of the sliding block 10. When the sliding block 10 ascends, the first return spring 20 is extruded, and when the sliding block 10 descends, the sliding block 10 is pushed to descend under the elastic restoring action of the first return spring 20, so that the guide rod 11, the sliding rod 12 and the shifting fork are driven to descend, and the shifting fork drives the chain link frame assembly to descend so as to prepare for the next bottle inserting embryo.
The chain link frame assembly comprises chain link frames 21, sleeve shafts 22 vertically penetrate through the chain link frames 21, chain links 23 are arranged in the chain link frames 21 and on the outer side walls of the sleeve shafts 22, the chain link frames 21 of adjacent chain link frame assemblies are hinged into a whole, a mandrel 24 which can rotate relative to the sleeve shafts 22 and slide up and down is vertically arranged in the sleeve shafts 22, the bottom ends of the mandrel 24 are connected with heating heads 17, and the top ends of the mandrel 24 are connected with a transmission sleeve 7. The transmission sleeve 7 is driven to lift by lifting of the sliding component, so that the mandrel 24 and the heating head 17 on the mandrel are driven to lift, and as the chain link frame component enters the lower part of the sliding component and the groove 8 of the transmission sleeve on the chain link frame component is contacted with the inclined surface 6 part on the plugboard 5 of the shifting fork, relative movement can be generated between the chain link frame component and the sliding component due to friction force along with the continuous rotation of the chain link frame component and the sliding component, the transmission sleeve 7 drives the mandrel 24 to rotate, so that the mandrel 24 stops rotating after the side wall of the groove 8 of the transmission sleeve 7 is completely attached to the plugboard inclined surface 6 of the shifting fork, and bottle blanks 9 on the mandrel 24 and the heating head 17 rotate to a preset angle, and the bottle blanks are ensured to be precisely oriented. The chain link frames of adjacent chain link frame components are hinged into a whole to form a closed loop, a heating chain is formed, the chain wheel 2 comprises a left chain wheel set and a right chain wheel, the left chain wheel set comprises an upper chain wheel and a lower chain wheel, the chain link frames of part of chain link frame components are meshed with the upper chain wheel and the lower chain wheel of the left chain wheel set at the same time, the chain link frames of part of chain link frame components are meshed with the right chain wheel, and the heating chain is tensioned when passing through the chain wheel 2.
The bottle embryo orientation mechanism further comprises a chain 36, wherein the autorotation chain wheel 25 is arranged on the mandrel 24 and between the sleeve shaft 22 and the transmission sleeve 7, the autorotation chain wheel 25 is meshed with the chain 36 when the autorotation chain wheel 25 rotates to the chain 36, and the autorotation chain wheel 25 meshed with the chain 36 drives the mandrel 24 to rotate when the chain link frame assembly rotates along with the chain wheel 2, so that the mandrel 24 drives the transmission sleeve 7 to rotate to a proper angle, and preparation is made for the chain link frame assembly to enter the lower part of the sliding assembly and contact with the inclined plane of the shifting fork plugboard of the sliding assembly. In this embodiment, the chains 36 are arranged in two rows, and the rotation sprockets 25 of the adjacent link frame assemblies are in an up-down offset state, as shown in fig. 5, so as to avoid the interference between the rotation sprockets 25 of the adjacent link frame assemblies.
The top surface of the rotation chain wheel 25 is provided with a positioning groove 26, the bottom surface of the transmission sleeve 7 is provided with a bottom boss 27, and the bottom boss 27 of the transmission sleeve 7 is clamped into the positioning groove 26 on the top surface of the rotation chain wheel 25, so that the transmission sleeve 7 can drive the rotation chain wheel 25 and the mandrel 24 to lift when the sliding assembly drives the transmission sleeve 7 to lift. Oil-containing bearings 28 are provided at the upper and lower ends of the interior of the quill 22 and on the outer side wall of the spindle 24, and end face bearings 29 are provided at the lower end of the interior of the quill 22 and on the outer side wall of the spindle 24.
A spring upper pad sleeve 30 is further arranged at the lower end of the sleeve shaft 22 and on the outer side wall of the mandrel 24, a spring lower pad sleeve 31 is further arranged on the outer side wall of the lower end of the mandrel 24, and a second return spring 32 is further arranged between the spring upper pad sleeve 30 and the spring lower pad sleeve 31 and on the outer side wall of the mandrel 24. The second return spring 32 is compressed when the mandrel 24 rises, and when the mandrel 24 descends, not only the sliding component gives the pushing force to the mandrel, but also the pushing force for the mandrel 24 to descend when the second return spring 32 elastically returns, so that the mandrel 24 can quickly return to the original position for the next round of embryo inserting.
The top surface of the transmission sleeve 7 is provided with a bolt 33, the outer side wall of the bolt 33 is provided with a guide roller 34 which can rotate relative to the bolt, the same side of the turntable 3 is respectively provided with two opposite wedge-shaped guide blocks 35, the inclined surfaces of the two wedge-shaped guide blocks 35 are opposite, and when the chain link frame assembly rotates out of the turntable 3 or rotates into the turntable 3, the guide rollers 34 on the chain link frame assembly are contacted with the inclined surfaces of the wedge-shaped guide blocks 35 and are guided, as shown in fig. 4. By matching the wedge-shaped guide block 35 with the guide roller 34, the bottle embryo 9 can be heated more uniformly during the two symmetrical heating processes. The guide roller 34 may be a rolling bearing.