Plastic Blow Molding Machine One-to-Three Parison Dividing Mechanism
By designing a one-to-three-part blank mechanism, using multiple blank slot groups and linear moving devices, the function of three bottle blanks on the same slide is realized, which solves the problem of low blank joint efficiency caused by insufficient configuration of the bottle blank slide in the prior art, and improves production efficiency.
Patent Information
- Application Number
- CN202110065451.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-01-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2041-01-19
AI Technical Summary
In the production of existing plastic bottle blowers, since the bottle preform slide occupies a large space, it usually only has one or two pieces, resulting in the blank plate that can only catch one or two pieces of bottle preforms, which cannot meet the needs of efficient production.
A one-to-tour three-part blank mechanism is designed. By setting up multiple round groove groups on the connecting plate and with the help of a linear moving device, the movement of splitting three pieces of a slide at a time is realized to ensure the accuracy and stable movement of splitting.
The function of splitting three bottles on the same slide is realized, which improves production efficiency and meets the needs of multi-station bottle blowing mechanisms.
Smart Images
Figure CN112693100B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a one - to - three blank dividing mechanism for a plastic bottle blowing machine, belonging to the field of plastic machinery. Background Art
[0002] When producing hollow containers such as cosmetic bottles, alcohol disinfection bottles, and medicine bottles, a plastic bottle blowing machine is required. During production, the bottle blanks are automatically transported to the blank loading mechanism by an automatic blank arranging mechanism, and then the blank loading mechanism places the bottle blanks onto the heating and conveying mechanism. The blank loading mechanism mainly consists of a blank receiving manipulator and a flipping mechanism. When loading the blanks, the blank receiving plate catches the bottle blanks sliding down from the slideway of the automatic blank arranging mechanism. In actual production, since the slideway occupies a large space, generally only one or two slideways are configured. Currently, most of the blowing stations of the bottle blowing machine have 2, 4, 6, or 8 stations. In order to improve production efficiency, the applicant has designed a blowing mechanism with 3 stations, 6 stations, or 9 stations. Therefore, while receiving the blanks, the bottle blanks sliding down from the same slideway also need to be separately distributed to 3 blank receiving plates. So, a one - to - three blank dividing mechanism needs to be designed. Summary of the Invention
[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a plastic bottle blowing machine one - to - three blank dividing mechanism with an overall design of blank receiving and blank dividing, which can realize blank dividing three at a time from one slideway, with stable actions, accurate blank dividing, and improved production efficiency.
[0004] The technical solution of the one - to - three blank dividing mechanism for the plastic bottle blowing machine of the present invention is as follows: It includes a base, on which a lifting support and a blank receiving support are installed. The lifting support is driven by a lifting cylinder to move up and down. A blank clamping manipulator is arranged on the lifting support. The blank clamping manipulator is arranged on a bearing seat through a rotating shaft and is driven by a flipping cylinder to flip. A blank receiving plate is installed on the blank receiving support. The characteristic is that a set of more than one blank receiving groove group is arranged on the blank receiving plate. Each blank receiving groove group includes a first blank receiving groove, a second blank receiving groove, and a third blank receiving groove. Each blank receiving groove group corresponds to a bottle blank slideway of a plastic bottle blowing machine, and a one - to - three blank dividing mechanism is arranged between the blank receiving groove group and the bottle blank slideway. The one - to - three blank dividing mechanism includes a linear moving device arranged on the base, a blank dividing support arranged on the linear moving device, and a set of more than one blank dividing groove group arranged on the blank dividing support. Each blank dividing groove group includes a first blank dividing groove and a second blank dividing groove. Initially, the first blank receiving groove corresponds to the first blank dividing groove, the second blank receiving groove corresponds to the second blank dividing groove and the bottle blank slideway. A pre - sliding shielding plate is arranged beside the first blank dividing groove, a blocking and folding plate is arranged beside the second blank dividing groove, and a blocking hook is arranged at the head of the bottle blank slideway, and the blocking hook extends above the second blank dividing groove.
[0005] The present invention discloses a one - to - three blank dividing mechanism for a plastic bottle blowing machine. During operation, the blank dividing mechanism idles once first, or directly two plastic bottle blanks are first fed into the first blank dividing groove by a worker and blocked by a pre - sliding shutter. Then, since a retaining hook is provided at the head of the blank chute and the retaining hook extends above the second blank dividing groove, two plastic bottle blanks also slide from the blank chute into the second blank dividing groove and are blocked by the retaining hook. At this time, the linear movement device operates, driving the blank dividing support to move forward by one station, making the first blank dividing groove correspond to the second blank receiving groove, and the second blank dividing groove correspond to the third blank receiving groove. During the movement, for the two plastic bottle blanks pre - fed into the first blank dividing groove, the first plastic bottle blank sways due to the vibration generated by the movement and slides into the first blank receiving groove, and the second plastic bottle blank is driven by the pre - sliding shutter and slides into the second blank receiving groove. When the second blank dividing groove corresponds to the third blank receiving groove, at this time, the first of the two plastic bottle blanks in the second blank dividing groove is blocked by a baffle plate first, and the linear movement device drives the blank dividing support to reset, and the baffle plate also resets accordingly. The first plastic bottle blank smoothly slides into the third blank receiving groove. At this time, the first blank receiving groove, the second blank receiving groove, and the third blank receiving groove all receive plastic bottle blanks, and the second plastic bottle blank is still in the second blank dividing groove and resets with it. During this process, the blank chute is always sliding down plastic bottle blanks. So at this time, two more plastic bottle blanks slide into the first blank dividing groove and are first blocked by the retaining hook. When resetting, the two plastic bottle blanks reset with the first blank dividing groove and are blocked by the pre - sliding shutter, while one plastic bottle blank in the second blank dividing groove quickly converges with other plastic bottle blanks sliding down from the blank chute for the next blank dividing, and so on in a cycle. This design is because the speed at which the plastic bottle blanks slide down in the blank chute is slower than the movement and reset movement of the linear movement device. As a result, when the linear movement device moves next time, the two plastic bottle blanks cannot yet slide into the second blank dividing groove. Therefore, it is designed to pre - send two plastic bottle blanks and bring back one plastic bottle blank during resetting, enabling the entire blank dividing and blank receiving operations to be smoothly achieved and improving production efficiency.
[0006] For the one - to - three blank dividing mechanism of the plastic bottle blowing machine of the present invention, the blank receiving groove group has one group, two groups, three groups or four groups, and the number of groups of the blank dividing groove group corresponds to that of the blank receiving groove group. The more groups of blank receiving groove groups and blank dividing groove groups, the more blowing stations there are, and the higher the production efficiency. A blank dividing shelf is provided on the blank dividing support where the first blank dividing groove and the second blank dividing groove are spaced apart. With the blank dividing shelf, it is more convenient to cooperate with the blank receiving plate. The linear movement device includes a bottom plate, a linear guide rail is installed on the bottom plate, a slider is slidably arranged on the linear guide rail, a fixed plate is installed on the slider, and the blank dividing support is installed on the fixed plate. A vertical plate is installed at each end of the bottom plate. A cylinder is installed on one of the vertical plates, and the cylinder rod of the cylinder is connected to the fixed plate, driving the blank dividing support on the fixed plate to slide. The linear guide rail ensures smooth sliding of the blank dividing support. Buffer spring blocks are installed on each of the two vertical plates, which can prevent violent collisions and damage to components. Description of the Drawings
[0007] Figure 1 It is a schematic diagram of the initial state of the blank splitting mechanism of the one-to-three blank splitting mechanism of the present invention;
[0008] Figure 2 It is a schematic diagram of the state where the folding baffle blocks the plastic preform during the blank splitting of the one-to-three blank splitting mechanism of the present invention;
[0009] Figure 3 It is a schematic diagram of the reset state of the one-to-three blank splitting mechanism of the present invention;
[0010] Figure 4 It is a schematic diagram of the state of the one-to-three blank splitting mechanism of the present invention without the cooperation of the preform slideway. Detailed implementation manners
[0011] The present invention relates to a one-to-three blank splitting mechanism of a plastic blow molding machine, as Figure 1 — Figure 4As shown in the figure, it includes a base 1, on which a lifting bracket 2 and a blank receiving bracket 3 are installed. The lifting bracket is driven by a lifting cylinder 4 to move up and down. A blank clamping manipulator 5 is arranged on the lifting bracket 2. The blank clamping manipulator 5 is arranged on a bearing block 7 through a rotating shaft 6 and is driven by a flipping cylinder 8 to flip. A blank receiving plate 9 is installed on the blank receiving bracket 3. One or more groups of blank receiving groove groups are arranged on the blank receiving plate 9. Each group of blank receiving groove groups includes a first blank receiving groove 10, a second blank receiving groove 11, and a third blank receiving groove 12. Each group of blank receiving groove groups corresponds to a blank chute 13 of a plastic bottle blowing machine. A one-to-three blank dividing mechanism is arranged between the blank receiving groove group and the blank chute 13. The one-to-three blank dividing mechanism includes a linear moving device arranged on the base 1. A blank dividing bracket 15 is arranged on the linear moving device. One or more groups of blank dividing groove groups are arranged on the blank dividing bracket 15. Each group of blank dividing groove groups includes a first blank dividing groove 16 and a second blank dividing groove 17. Initially, the first blank receiving groove 10 corresponds to the first blank dividing groove 16, the second blank receiving groove 11 corresponds to the second blank dividing groove 17 and the blank chute 13. A pre-sliding shielding plate 18 is arranged beside the first blank dividing groove 16, a blocking folding plate 19 is arranged beside the second blank dividing groove 17, and a blocking hook 20 is arranged at the head of the blank chute 13, and the blocking hook 20 extends above the second blank dividing groove 17. During operation, the blank dividing mechanism idles once first, or directly two plastic bottle blanks 32 are first sent into the first blank dividing groove 16 by a worker and are blocked by the pre-sliding shielding plate 18. Then, due to the blocking hook 20 arranged at the head of the blank chute 13 and the blocking hook 20 extending above the second blank dividing groove 17, two plastic bottle blanks also slide from the blank chute 13 into the second blank dividing groove 17 and are blocked by the blocking hook 20. At this time, the linear moving device works, driving the blank dividing bracket 15 to move forward by one station, so that the first blank dividing groove 16 corresponds to the second blank receiving groove 11, and the second blank dividing groove 17 corresponds to the third blank receiving groove 12. During the movement, for the two plastic bottle blanks 32 pre-sent into the first blank dividing groove 16, the first plastic bottle blank shakes due to the vibration generated by the movement and slides into the first blank receiving groove 10, and the second plastic bottle blank is driven by the pre-sliding shielding plate 18 and slides into the second blank receiving groove 11. When the second blank dividing groove 17 corresponds to the third blank receiving groove 12, at this time, the blocking folding plate 19 first blocks the two plastic bottle blanks in the second blank dividing groove 17. The linear moving device drives the blank dividing bracket 15 to reset, and the blocking folding plate 19 also resets accordingly. The first plastic bottle blank slides smoothly into the third blank receiving groove 12. At this time, the first blank receiving groove 10, the second blank receiving groove 11, and the third blank receiving groove 12 all receive plastic bottle blanks, and the second plastic bottle blank is still in the second blank dividing groove 17 and follows the reset. During this process, the blank chute is always sliding down plastic bottle blanks. So at this time, two more plastic bottle blanks slide into the first blank dividing groove 16 and are first blocked by the blocking hook 20. When resetting, the two plastic bottle blanks follow the first blank dividing groove 16 to reset and are blocked by the pre-sliding shielding plate 18. And one plastic bottle blank in the second blank dividing groove 17 quickly converges with other plastic bottle blanks sliding down from the blank chute 13 for the next blank dividing, and so on in a cycle.This design is due to the fact that the sliding speed of the plastic preforms in the preform chute is slower than the movement and reset actions of the linear moving device. As a result, when the linear moving device moves for the next time, two plastic preforms cannot yet slide into the second blank dividing groove 17. Therefore, it is designed to pre-feed two plastic preforms and bring back one plastic preform during reset, enabling the entire blank dividing and blank receiving actions to be smoothly achieved and improving production efficiency. The blank receiving groove group can have one group, two groups, three groups, or four groups, and the number of groups of the blank dividing groove group corresponds to that of the blank receiving groove group. The more groups of blank receiving groove groups and blank dividing groove groups, the more corresponding blow molding stations there are, and the higher the production efficiency. As shown in the figure is an embodiment of two groups of blank receiving groove groups and two groups of blank dividing groove groups. A blank dividing shelf 21 is provided on the blank dividing support 15 where the first blank dividing groove 16 and the second blank dividing groove 17 are spaced apart. With the blank dividing shelf, it is more convenient to cooperate with the blank receiving plate. The linear moving device includes a bottom plate 25. A linear guide rail 26 is installed on the bottom plate. A slider 27 is slidably arranged on the linear guide rail. A fixing plate 28 is installed on the slider. The blank dividing support 15 is installed on the fixing plate 28. At both ends of the bottom plate 25, a vertical plate 29 is installed respectively. A cylinder 30 is installed on one of the vertical plates. The cylinder rod of the cylinder is connected to the fixing plate 28. The blank dividing support on the fixing plate is driven to slide by the cylinder, and the linear guide rail ensures smooth sliding of the blank dividing support. Buffer spring blocks 31 are installed on each of the two vertical plates 29, which can prevent violent collisions and damage to components.
Claims
1. Plastic blow molding machine one - to - three blank splitting method, the blank splitting mechanism used includes a base (1), on which a lifting bracket (2) and a blank receiving bracket (3) are installed. The lifting bracket is driven up and down by a lifting cylinder (4). A blank clamping manipulator (5) is arranged on the lifting bracket (2). The blank clamping manipulator (5) is arranged on a bearing block (7) through a rotating shaft (6) and is driven to flip by a flipping cylinder (8). A blank receiving plate (9) is installed on the blank receiving bracket (3). Characterized in that On the blank receiving plate (9), more than one set of blank receiving groove groups are arranged. Each set of blank receiving groove groups includes a first blank receiving groove (10), a second blank receiving groove (11), and a third blank receiving groove (12). Each set of blank receiving groove groups corresponds to a blank chute (13) of a plastic bottle blowing machine. A one-to-three blank dividing mechanism is arranged between the blank receiving groove group and the blank chute (13). The one-to-three blank dividing mechanism includes a linear moving device arranged on the base (1). A blank dividing support (15) is arranged on the linear moving device. More than one set of blank dividing groove groups are arranged on the blank dividing support (15). Each set of blank dividing groove groups includes a first blank dividing groove (16) and a second blank dividing groove (17). Initially, the first blank receiving groove (10) corresponds to the first blank dividing groove (16), the second blank receiving groove (11) corresponds to the second blank dividing groove (17) and the blank chute (13). A pre-sliding shielding plate (18) is arranged beside the first blank dividing groove (16), a folding blocking plate (19) is arranged beside the second blank dividing groove (17), and a retaining hook (20) is arranged at the head of the blank chute (13), and the retaining hook (20) extends above the second blank dividing groove (17). During operation, the blank dividing mechanism idles once first, or directly two plastic bottle blanks (32) are first sent into the first blank dividing groove (16) by a worker and are blocked by the pre-sliding shielding plate (18). Then, due to the retaining hook (20) being arranged at the head of the blank chute (13) and the retaining hook (20) extending above the second blank dividing groove (17), two plastic bottle blanks also slide from the blank chute (13) into the second blank dividing groove (17) and are blocked by the retaining hook (20). At this time, the linear moving device works, driving the blank dividing support (15) to move forward by one station, making the first blank dividing groove (16) correspond to the second blank receiving groove (11), and the second blank dividing groove (17) correspond to the third blank receiving groove (12). During the movement, for the two plastic bottle blanks (32) pre-sent into the first blank dividing groove (16), the first plastic bottle blank sways due to the vibration generated by the movement and slides into the first blank receiving groove (10), and the second plastic bottle blank is driven by the pre-sliding shielding plate (18) and slides into the second blank receiving groove (11). When the second blank dividing groove (17) corresponds to the third blank receiving groove (12), at this time, the folding blocking plate (19) first blocks the two plastic bottle blanks in the second blank dividing groove (17). The linear moving device drives the blank dividing support (15) to reset, and the folding blocking plate (19) also resets accordingly. The first plastic bottle blank slides smoothly into the third blank receiving groove (12). At this time, the first blank receiving groove (10), the second blank receiving groove (11), and the third blank receiving groove (12) all receive plastic bottle blanks, and the second plastic bottle blank is still in the second blank dividing groove (17) and resets accordingly. During this process, the blank chute is always sliding down plastic bottle blanks. So at this time, two more plastic bottle blanks slide into the first blank dividing groove (16) and are first blocked by the retaining hook (20). When resetting, the two plastic bottle blanks reset with the first blank dividing groove (16) and are blocked by the pre-sliding shielding plate (18). And one plastic bottle blank in the second blank dividing groove (17) quickly converges with other plastic bottle blanks sliding down from the blank chute (13) for the next blank dividing, and so on in a cycle.
2. The method for dividing preforms in a one-to-three plastic bottle blowing machine as described in claim 1, characterized in that the preform receiving groove group has one group, two groups, three groups or four groups, and the number of groups of the preform dividing groove group corresponds to that of the preform receiving groove group.
3. The method for dividing preforms in a one-to-three plastic bottle blowing machine as described in claim 1, characterized in that a preform placing plate (21) is arranged on the preform dividing support (15) where the first preform dividing groove (16) and the second preform dividing groove (17) are arranged alternately.
4. The method for dividing preforms in a one-to-three plastic bottle blowing machine as described in claim 1, characterized in that the linear movement device includes a bottom plate (25), a linear guide rail (26) is installed on the bottom plate, a slider (27) is slidably arranged on the linear guide rail, a fixing plate (28) is installed on the slider, the preform dividing support (15) is installed on the fixing plate (28), two vertical plates (29) are installed at both ends of the bottom plate (25), a cylinder (30) is installed on one of the vertical plates, and the cylinder rod of the cylinder is connected to the fixing plate (28).
5. The method for dividing preforms in a one-to-three plastic bottle blowing machine as described in claim 4, characterized in that buffer elastic blocks (31) are installed on each of the two vertical plates (29).
Citation Information
Patent Citations
Blank feeding track change device for plastic bottle blowing machine
CN204451174U
One-dragging-three blank separating mechanism of plastic bottle blowing machine
CN214354096U