Translation type plastic bottle injection blowing device

Abstract

The utility model discloses a translation type plastic bottle injection blowing device, which comprises a fixed mold plate, a movable mold seat, an injection mold and a pair of blowing molds, the injection mold and the pair of blowing molds are arranged on the fixed mold plate, a plurality of injection molding cavities are formed in the injection mold along the translation direction perpendicular to a mold core seat, and each blowing mold comprises a pair of blow molding half molds capable of being opened and closed, two injection-blowing mold core groups and two cooling mold core groups are arranged on the movable mold base through a mold core seat, each injection-blowing mold core group comprises injection-blowing mold cores which are in one-to-one correspondence with the injection molding cavities, and a bottle opening half part is arranged on the mold core seat through a pair of bottle opening half part mounting seats which can be opened and closed; each cooling mold core group comprises cooling mold cores in one-to-one correspondence with the injection molding cavities; each pair of blow molding half molds is provided with blow molding half cavities corresponding to the injection molding cavities, and the fixed mold plate is provided with hot runners communicated with all the injection molding cavities; and a blowing forming mechanism is arranged in the injection blowing mold core and the mold core seat. According to the utility model, the injection-blowing mold core group and the cooling mold core group are arranged side by side, so that the productivity is greatly improved.

Description

Technical Field

[0001] This utility model relates to a plastic bottle injection blow molding device, specifically a translational plastic bottle injection blow molding device. Background Technology

[0002] Currently, in the plastic injection blow molding industry, existing translational injection blow molding plastic bottles use dedicated translational injection blow molding machines. The opening and closing of the blow molding cavity group of this injection blow molding machine is a method in which the two halves of the mold move in parallel relative to each other at the same time. In order to arrange the drive cylinders on both sides of the blow molding mold, the arrangement direction of the injection blow core group and the cooling core group is the same as their movement direction, so that the two injection blow core groups and the two cooling core groups form a series structure. The combined length is relatively long, which limits the number of single groups and thus limits the increase in production capacity. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a translational plastic bottle injection blowing device that arranges all the injection blow molding core assemblies and cooling core assemblies side by side.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a translational plastic bottle injection blow molding device, comprising: a fixed mold plate and a moving mold base arranged opposite to each other; an injection mold and a pair of blow molds located on both sides of the injection mold are provided on the side of the fixed mold plate facing the moving mold base; each blow mold includes: a pair of openable and closable blow mold halves set on the fixed mold plate by a blow mold opening and closing mechanism; a core seat is slidably provided on the moving mold base; a core translation force device for driving the core seat to translate is provided on the moving mold base; two injection blow core groups and one cooling core group on each side of the two injection blow core groups are arranged on the core seat along the translational direction of the core seat; the distance between the two cooling core groups and the adjacent injection blow core groups is equal to the distance between the two injection blow core groups; a plurality of injection cavities are formed on the injection mold along the translational direction perpendicular to the core seat; and each pair of blow mold halves is divided along the translational direction perpendicular to the core seat. The blow molding mold includes a blow molding half-cavity corresponding to each injection molding cavity. The blow molding mold further includes a cavity bottom corresponding to each pair of blow molding half-cavities in each pair of blow molding half-cavities. When the corresponding blow molding half-cavities in each pair of blow molding half-cavities are closed, they form a blow molding cavity with the corresponding cavity bottom. Each injection blow molding core assembly includes an injection blow molding core arranged perpendicular to the translational direction of the core seat and corresponding to each injection molding cavity. Each cooling core assembly includes a cooling core arranged perpendicular to the translational direction of the core seat and corresponding to each injection molding cavity. A pair of openable bottle neck half-cavity mounting seats are provided on both sides of the injection blow molding core assembly via a half-cavity opening and closing mechanism on the core seat. Bottle neck half-cavities corresponding to the injection blow molding cores in the injection blow molding core assembly are provided on the bottle neck half-cavities mounting seats. The fixed platen is provided with hot runners communicating with all injection molding cavities in the injection mold. A blow molding mechanism is provided in the injection blow molding core and the core seat.

[0005] As a preferred embodiment, in the aforementioned translational plastic bottle injection blow molding device, the core seat includes: a core seat slider and a core mounting plate disposed on the core seat slider.

[0006] As a preferred embodiment, in the aforementioned translational plastic bottle injection blowing device, the cooling core is mounted on the core mounting plate via a cooling core seat.

[0007] As a preferred embodiment, in the aforementioned translational plastic bottle injection blowing device, the cooling core seat is provided with an air blowing cooling mechanism.

[0008] As a preferred embodiment, in the aforementioned translational plastic bottle injection blow molding device, the specific arrangement of the blow molding mold opening and closing mechanism is as follows: both ends of the fixed template are respectively provided with blow molding opening and closing cylinders on the outer side of the corresponding blow molding mold, and the piston rod of the blow molding opening and closing cylinder is connected to the blow molding half mold on the outer side of the blow molding mold.

[0009] As a preferred embodiment, in the aforementioned translational plastic bottle injection blow molding device, the inner half of the blow molding mold is set on a fixed template.

[0010] As a preferred embodiment, in the aforementioned translational plastic bottle injection blow molding device, the specific structure of the blow molding mold opening and closing mechanism includes: a blow molding opening and closing cylinder set on a fixed template facing the blow molding mold; an opening and closing push plate set on the piston rod of the blow molding opening and closing cylinder; a pair of locking ribs set on the fixed template at both ends of the blow molding mold via locking connection plates; locking oblique grooves corresponding to the corresponding locking ribs are provided at both ends of the opening and closing push plate and both ends of the blow molding half mold; the locking oblique grooves are movably inserted in the locking oblique grooves corresponding to the opening and closing push plate and the blow molding half mold; and the cavity bottom is set on the opening and closing push plate.

[0011] As a preferred embodiment, in the aforementioned translational plastic bottle injection blow molding device, the specific structure of the blow molding mold opening and closing mechanism includes: a blow molding opening and closing cylinder set on a fixed template facing the blow molding mold; an opening and closing push plate set on the piston rod of the blow molding opening and closing cylinder; a pair of locking push plates set on the fixed template at both ends of the blow molding mold via locking connection plates; locking ramps symmetrically set on the inner side of each pair of locking push plates; inclined locking bosses corresponding to the corresponding locking ramps are opened at both ends of the blow molding half mold; the blow molding half mold is laterally slidably set in the opening and closing push plate; the locking ramps abut against the corresponding inclined locking bosses; and the cavity bottom is set on one of the blow molding half molds.

[0012] As a preferred embodiment, in the aforementioned translational plastic bottle injection blowing device, the specific structure of the splitter opening and closing mechanism includes: a splitter ejection cylinder and a splitter opening and closing rib disposed in the core seat opposite the splitter mounting seat at the bottle mouth; a sliding guide groove arranged along the translational direction of the core seat is provided on the bottom surface of the splitter mounting seat at the bottle mouth; a sliding guide strip is slidably disposed in the sliding guide groove; the piston rod of the splitter ejection cylinder is connected to the sliding guide strip in the corresponding splitter mounting seat at the bottle mouth; a splitter opening and closing groove corresponding to the splitter opening and closing rib is provided in the splitter mounting seat at the bottle mouth; and the splitter opening and closing rib is movably disposed in the splitter opening and closing groove of the corresponding splitter mounting seat at the bottle mouth.

[0013] As a preferred embodiment, in the aforementioned translational plastic bottle injection blow molding device, both ends of the moving mold base are provided with core limiting bosses on the side facing the core base, and the core translational force device is inserted into one of the core limiting bosses.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model arranges the injection blow cores in the injection blow core assembly and the cooling cores in the cooling core assembly along the translation direction perpendicular to the core seat, so that the injection blow core assembly and the cooling core assembly form a side-by-side arrangement structure, which removes the limitation on the number of single-assembly arrangements, greatly improves production capacity and reduces production costs.

[0016] 2. This utility model greatly facilitates the installation of injection blow molding cores and cooling cores by separating the core seat into a core seat slider and a core mounting plate set on the core seat slider.

[0017] 3. The blow molding mold opening and closing mechanism described in this utility model is very compact and solves the problem of opening and closing of blow molding half mold very well.

[0018] 4. The opening and closing mechanism of the bottle neck half-part described in this utility model is very compact and solves the problem of opening and closing the bottle neck half-part very well.

[0019] 5. By setting core limiting bosses at both ends of the moving mold base, this utility model can ensure that the injection blow molding core and cooling core are accurately positioned during parallel displacement, thus guaranteeing the normal operation of the injection blow molding process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the arrangement structure of the fixed mold side of the injection blow molding device according to this utility model.

[0021] Figure 2 yes Figure 1 The diagram shows a top view of the injection blow molding device when the mold is closed.

[0022] Figure 3 yes Figure 1 The diagram shows a top view of the injection blow molding device when the mold is open.

[0023] Figure 4 This is a schematic diagram of the specific structure of the half-part opening and closing mechanism when the mold is closed.

[0024] Figure 5 This is a schematic diagram of the specific structure of the splitting mechanism during mold opening.

[0025] Figures 1 to 5The reference numerals in the attached drawings are as follows: 1. Fixed mold plate; 12. Left side opening and closing cylinder seat; 14. Right side opening and closing cylinder seat; 15. Hot runner; 20. Cavity bottom; 21. Blow molding half mold; 2122. Blow molding cavity; 22. Blow molding half mold; 220. First blow molding opening and closing cylinder; 221. Piston rod; 23. Blow molding half mold; 24. Blow molding half mold; 240. Second blow molding opening and closing cylinder; 241. Piston rod; 29. ​​Injection mold; 291. Injection cavity; 71. Injection blow core assembly; 72. Cooling core assembly, 78. Bottle neck half-part, 780. Half-part ejection cylinder, 8. Core seat slider, 80. Mold moving cylinder, 81. Air blowing forming mechanism, 83. Core mounting plate, 84. Bottle neck half-part mounting seat, 840. Sliding guide bar, 841. Half-part opening and closing slant groove, 842. Half-part opening and closing rib, 8420. Straight section, 85. Cooling core seat, 851. Air blowing cooling mechanism, 88. Moving mold seat, 881. Core limiting boss, 9. Plastic bottle, 90. Bottle preform.

[0026] Figure 6 This is a schematic diagram of the arrangement structure of another injection blow molding device on the fixed mold side according to this utility model.

[0027] Figure 7 yes Figure 6 The diagram shows a top view of the injection blow molding device when the mold is closed.

[0028] Figure 8 yes Figure 6 The diagram shows a top view of the injection blow molding device when the mold is open.

[0029] Figure 9 yes Figure 6 Enlarged structural diagram of the opening and closing mechanism of the blow molding mold during mold opening.

[0030] Figures 6 to 9The reference numerals in the attached drawings are as follows: 1. Fixed mold plate; 11. Mold locking connecting plate; 15. Hot runner; 20. Cavity bottom; 21. Blow molding half mold; 211. Angled mold locking boss; 22. Blow molding half mold; 221. Angled mold locking boss; 23. Blow molding half mold; 24. Blow molding half mold; 25. First blow molding opening and closing cylinder; 250. Opening and closing push plate; 251. Piston rod; 26. Second blow molding opening and closing cylinder; 27. Mold locking push plate; 271. Mold locking ramp; 28. Mold locking push plate; 281. Mold locking ramp; 29. ​​Injection mold; 291. Injection... 71. Molding cavity; 72. Injection blow molding core assembly; 73. Cooling core assembly; 74. Bottle neck half-part; 75. Half-part ejection cylinder; 86. Core seat slider; 87. Mold moving cylinder; 88. Air blowing molding mechanism; 89. Core mounting plate; 80. Bottle neck half-part mounting seat; 81. Sliding guide bar; 82. Half-part opening and closing slant groove; 83. Half-part opening and closing rib; 84. Straight section; 85. Cooling core seat; 86. Air blowing cooling mechanism; 87. Moving mold seat; 88. Core limiting boss; 9. Plastic bottle; 90. Bottle preform.

[0031] Figure 10 This is a schematic diagram of the third type of blow molding mold opening and closing mechanism during mold opening.

[0032] Figure 11 yes Figure 10 The diagram shows the structure of the blow molding mold opening and closing mechanism during mold closing.

[0033] Figures 10 to 11 The reference numerals in the attached drawings are as follows: 1. Fixed template, 11. Mold locking connecting plate, 15. Hot runner, 20. Cavity bottom, 21. Blow molding half mold, 212. Mold locking inclined slide, 22. Blow molding half mold, 222. Mold locking inclined slide, 23. Blow molding half mold, 24. Blow molding half mold, 25. First blow molding opening and closing cylinder, 250. Opening and closing push plate, 251. Piston rod, 26. Second blow molding opening and closing cylinder, 27. Mold locking inclined rib, 28. Mold locking inclined rib. Detailed Implementation

[0034] The following describes in detail, with reference to the accompanying drawings, the specific implementation scheme of the translational plastic bottle injection blowing device of this utility model.

[0035] Example 1:

[0036] like Figures 1 to 3As shown, the present invention discloses a translational plastic bottle injection blow molding device, the structure of which includes: a fixed template 1 and a moving mold base 88 arranged opposite to each other. The fixed template 1 has an injection mold 29 on the side facing the moving mold base 88, and a first blow mold and a second blow mold located on both sides of the injection mold 29. The first blow mold located on the left side of the injection mold 29 includes: a pair of openable and closable blow mold halves 21 and 22 set on the fixed template 1 by a first blow mold opening and closing mechanism. The blow mold halves 21 located on the inner side are fixed on the fixed template 1. The specific arrangement of the first blow mold opening and closing mechanism is as follows: a left opening and closing cylinder seat 12 is provided on the left end of the fixed template 1 outside the left side of the first blow mold, and a first blow molding opening and closing cylinder 220 is inserted through the left opening and closing cylinder seat 12. The piston rod 221 of the first blow molding opening and closing cylinder 220 is connected to the outer blow molding half mold 22 in the first blow molding mold; the second blow molding mold located on the right side of the injection mold 29 includes: a pair of openable and closable blow molding half molds 23 and 24 set on the fixed platen 1 by the second blow molding mold opening and closing mechanism, the inner blow molding half mold 23 is fixed on the fixed platen 1, and the specific arrangement of the second blow molding mold opening and closing mechanism is as follows: the right end of the fixed platen 1 is provided with a right opening and closing cylinder seat 14 on the outer side of the second blow molding mold on the right side, the right opening and closing cylinder seat 14 is provided with a second blow molding opening and closing cylinder 240, and the piston rod 241 of the second blow molding opening and closing cylinder 240 is connected to the outer blow molding half mold 24 in the second blow molding mold; the moving mold base 88 is slidably provided with a core. The core seat slider 8 is provided with a core mounting plate 83. Both ends of the moving mold seat 88 have core limiting bosses 881 on the side facing the core seat slider 8. A mold moving cylinder 80, serving as a core translation force device, passes through the right-side core limiting boss 881. The piston rod of the mold moving cylinder 80 is connected to the core seat slider 8. Two injection blow molding core assemblies 71 and one cooling core assembly 72 are arranged on each side of the two injection blow molding core assemblies 71 along the translation direction of the core seat. The cooling core assemblies 72 are mounted on the core mounting plate 83 via cooling core seats 85. The cooling core seats 85 have an air-blowing cooling mechanism 851 communicating with the cooling cores in the cooling core assemblies 72 (belonging to this part). (This is conventional technology in the field and will not be described in detail here). The distance between the two cooling core groups 72 and the adjacent injection blow core group 71 is equal to the distance between the two injection blow core groups 71. The injection mold 29 has six injection cavities 291 arranged along the translation direction perpendicular to the core seat slider 8. Each injection blow core group 71 includes: injection blow cores arranged perpendicular to the translation direction of the core seat slider 8, corresponding one-to-one with the injection cavity 291 (the number of injection blow cores corresponds to the number of injection cavities 291 and blow cavities 2122, which is conventional technology in the field and will not be described in detail here). The core seat has a pair of openable bottle neck half-part mounting seats 84 on both sides of each injection blow core group 71 through a half-part opening and closing mechanism. Figure 4and Figure 5 As shown, the half-part opening and closing mechanism includes: a half-part ejection cylinder 780 disposed in the core seat opposite the half-part mounting base 84 at the bottle neck, and a half-part opening and closing rib 842. The bottom of the half-part opening and closing rib 842 has a straight section 8420 for installation, which is inserted into the core mounting plate 83. A sliding guide groove is formed on the bottom surface of the half-part mounting base 84 along the translational direction of the core seat, and a sliding guide is slidably disposed in the sliding guide groove. The cylinder body of the split-part ejection cylinder 780 is disposed in the core seat slider 8. The piston rod of the split-part ejection cylinder 780 passes through the core mounting plate 83 and is connected to the sliding guide bar 840 in the corresponding bottle neck split-part mounting seat 84. The bottle neck split-part mounting seat 84 is provided with a split-part opening and closing groove 841 corresponding to the split-part opening and closing rib 842. The split-part opening and closing rib 842 is movably disposed in the split-part opening and closing groove 841 of the corresponding bottle neck split-part mounting seat 84. The mounting base 84 is provided with bottle neck splitters 78 corresponding to the injection blow cores in the injection blow core assembly 71; each cooling core assembly 72 includes: a cooling core arranged perpendicular to the translational direction of the core seat slider 8 and corresponding to the injection cavity 291; a pair of blow molding halves 21 and 22 in the first blow mold on the left side are respectively provided with six blow molding halves corresponding to the injection cavity 291 along the translational direction perpendicular to the core seat slider 8, and the first blow mold also includes: a bottle neck splitter 78 corresponding to the injection cavity 291 in the first blow mold 291. Each pair of blow molding half-cavities 1 and 22 corresponds to a cavity bottom 20. When the corresponding blow molding half-cavities on blow molding half molds 21 and 22 are closed, they form a blow molding cavity 2122 with the corresponding cavity bottom 20. The fixed template 1 is provided with a hot runner 15 that communicates with all injection molding cavities 291 in the injection mold 29 (this is conventional technology in the art and will not be described in detail here). The blow molding core and core seat are provided with a blow molding mechanism 81 (this is conventional technology in the art and will not be described in detail here).

[0037] In practical applications, the sliding guide groove is a dovetail groove or a T-groove, so that the corresponding sliding guide bar 840 is bound to the corresponding bottle neck half-part mounting base 84 in a sliding direction perpendicular to the sliding guide bar 840 (so that it will not fall out).

[0038] Example 2:

[0039] The second type of translational plastic bottle injection blowing device described in this utility model differs from Embodiment 1 in that it has a blow molding mold opening and closing mechanism, such as... Figures 6 to 8As shown, the specific structure of the blow molding mold opening and closing mechanism in this embodiment includes: a first blow molding opening and closing cylinder 25 disposed on a fixed template 1 facing the first blow molding mold on the left, and a second blow molding opening and closing cylinder 26 disposed on a fixed template 1 facing the second blow molding mold on the right. The blow molding mold opening and closing mechanisms on both sides are the same. Taking the blow molding mold opening and closing mechanism on the left as an example, an opening and closing push plate 250 is disposed on the piston rod 251 of the first blow molding opening and closing cylinder 25. The fixed template 1 is disposed on both ends of the first blow molding mold. Figure 7 and Figure 8 Mold-locking connecting plates 11 are respectively provided on the front and rear sides of the mold-locking connecting plate 11, and the two sides of the mold-locking connecting plate 11 ( Figure 7 and Figure 8 A pair of mold-locking push plates 27 and 28 are symmetrically arranged on the left and right sides of the mold, as shown in the figure. Figure 9 As shown, the inner sides of the pair of mold-locking push plates 27 and 28 are symmetrically provided with mold-locking ramps 271 and 281, and the two ends of the blow molding half mold 21 ( Figure 7 and Figure 8 The front and rear ends of the blow molding half mold 22 are respectively provided with inclined mold-locking bosses 211 corresponding to the corresponding mold-locking ramps 281. Figure 7 and Figure 8 The front and rear ends of the mold are respectively provided with inclined mold-locking bosses 221 corresponding to the corresponding mold-locking ramps 271. The blow molding half molds 21 and 22 are laterally slidably disposed in the opening and closing push plate 250 (which is a conventional technology in the art and will not be described in detail here). The mold-locking ramps 271 on the mold-locking push plate 27 abut against the corresponding inclined mold-locking bosses 221 of the blow molding half mold 22, and the mold-locking ramps 281 on the mold-locking push plate 28 abut against the corresponding inclined mold-locking bosses 211 of the blow molding half mold 21. The cavity bottom 20 is disposed on the right side of the blow molding half mold 22.

[0040] Example 3:

[0041] The third type of translational plastic bottle injection blow molding device of this utility model differs from Embodiment 2 only in the sliding structure of the blow molding half molds 21 and 22 and the mounting structure of the cavity bottom 20. Specifically, the difference lies in the two sides of the mold locking connecting plate 11 ( Figure 10 and Figure 11 A pair of locking ribs 27 and 28 are symmetrically arranged on the left and right sides of the first blow molding die 22. Figure 10 and Figure 11 The front and rear ends of the first blow mold are respectively provided with locking oblique grooves 222 corresponding to the corresponding locking oblique ribs 27. The two ends of the blow molding half mold 21 of the first blow mold ( Figure 10 and Figure 11The front and rear ends of the mold are respectively provided with mold locking oblique grooves 212 corresponding to the corresponding mold locking oblique ribs 28. The mold locking oblique ribs 27 are movably inserted into the mold locking oblique grooves 222 of the blow molding half mold 22, and the mold locking oblique ribs 28 are movably inserted into the mold locking oblique grooves 212 of the blow molding half mold 21. The cavity bottom 20 is centrally located on the opening and closing push plate 250.

[0042] The working process of this utility model is as follows: the mold closes, the plasticized plastic enters all injection cavities 291 of the injection mold 29 through the hot runner 15, and forms the preform through temperature control. Then the mold opens, the moving mold retracts, and the injection blow molding core assembly 71, carrying the preform 90, is ejected from the injection cavity 291. The moving mold retracts to the set position. Then, the mold moving cylinder 80 drives the core seat slider 8 to move in the corresponding direction, so that the injection blow molding core assembly 71 with the preform 90 is aligned with the corresponding blow molding cavity 2122, and the injection blow molding core assembly 71 without the preform is aligned with the injection cavity 291. Then the mold closes in place, the plasticized plastic enters all injection cavities 291 of the injection mold 29 through the hot runner 15, and forms the preform 90 through temperature control. At the same time, the blowing molding mechanism 81 blows the preform into the blow molding cavity 2122. Compressed air is blown into the blow molding core in 122. The compressed air is blown out through the air outlet between the movable core head and the core body of the blow molding core. After blowing for a certain period of time, the preform 90 is blown into shape to form a plastic bottle 9. The preform 90 is injection molded at a controlled temperature. After the set time, the mold opens, the moving mold retracts, the blow molding core in the blow molding core assembly 71 in the blow molding cavity 2122 exits, and the bottle neck hinge 78 opens. The initially formed plastic bottle 9 remains in the blow molding cavity 2122. The blow molding core in the injection molding cavity 291, carrying the preform 90, is ejected from the corresponding injection molding cavity 291 to the set position. Then, the mold moving cylinder 80 drives it to move in another direction. At this time, the blow molding core with the preform 90 is aligned with the blow molding cavity 2122, and the blow molding core without the preform 90 is... Aligning the injection molding cavity 291, the cooling core assembly 72 on the outside of the injection blow molding core without the preform 90 is aligned with the initially formed plastic bottle 9, and then the mold is closed. The plasticized plastic enters all the injection molding cavities 291 of the injection mold 29 through the hot runner 15, and the preform 90 is formed under temperature control. At the same time, compressed air is blown into the injection blow molding core in the blow molding cavity 2122 through the blow molding mechanism 81. The compressed air is blown out from the air outlet between the movable core head and the core body of the injection blow molding core. After blowing for a certain period of time, the preform 90 is initially blown into shape to form the plastic bottle 9. The cooling core assembly 72 blows low-pressure air through the blow cooling mechanism 851 to further cool and solidify the initially formed plastic bottle 9 until the set temperature is reached. After a certain time, the mold opens, the moving mold retracts, and the initially formed plastic bottle 9 remains in the blow molding cavity 2122. The injection blow molding core in the injection molding cavity 291, carrying the preform 90, is ejected from the corresponding injection molding cavity 291. For the blow molding cavity 2122 directly opposite the cooling core assembly 72, after opening, if the blow molding mold opening and closing mechanism described in Example 1 is used, the plastic bottle 9 is directly removed from the blow molding cavity 2122 by a robotic arm. If the blow molding mold opening and closing mechanism described in Examples 2 and 3 is used, the cooling core assembly 72 carries the plastic bottle 9 out of the blow molding cavity 2122, and then the robotic arm removes the plastic bottle 9 from the cooling core. Alternatively, after the mold is moved to the correct position and closed, the bottle 9 is removed from the cooling core while injection molding and blow molding cooling are performed at other stations.The mold-moving cylinder 80 drives the core holder to move again in the corresponding direction. After reaching its position, the actions of injection molding of the preform 90 and blow molding of the plastic bottle 9 are repeated, and this cycle continues.

[0043] In summary, the above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent variations and modifications made to the shape, structure, features and spirit described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A translational plastic bottle injection blowing device, comprising: A fixed mold plate and a moving mold base are arranged opposite each other. The fixed mold plate has an injection mold on its side facing the moving mold base, and a pair of blow molds located on either side of the injection mold. Each blow mold includes a pair of openable and closable blow mold halves mounted on the fixed mold plate via a blow mold opening and closing mechanism. A core seat is slidably mounted on the moving mold base, and a core translation force device for driving the core seat to translate is provided on the moving mold base. The core seat has two injection blow core groups arranged along its translation direction, and one cooling core group on each side of the two injection blow core groups. The distance between the two cooling core groups and the adjacent injection blow core groups is equal to the distance between the two injection blow core groups. The injection mold has a plurality of injection cavities along a direction perpendicular to the translation direction of the core seat, and each pair of blow mold halves has corresponding injection cavities along a direction perpendicular to the translation direction of the core seat. The blow molding mold further includes: a cavity bottom corresponding to each pair of blow molding cavities in each pair of blow molding cavities, wherein when the corresponding blow molding cavities on each pair of blow molding cavities are closed, they form a blow molding cavity with the corresponding cavity bottom; each injection blow molding core assembly includes: injection blow molding cores arranged perpendicular to the translation direction of the core seat and corresponding to each injection molding cavity; each cooling core assembly includes: cooling cores arranged perpendicular to the translation direction of the core seat and corresponding to each injection molding cavity; a pair of openable bottle neck half-part mounting seats are provided on both sides of the injection blow molding core assembly via a half-part opening and closing mechanism on the core seat, and bottle neck half-parts corresponding to each injection blow molding core in the injection blow molding core assembly are provided on the bottle neck half-part mounting seats; a hot runner is provided on the fixed platen that communicates with all injection molding cavities in the injection mold; and a blow molding mechanism is provided in the injection blow molding core and the core seat.

2. The translational plastic bottle injection blowing device according to claim 1, characterized in that, The core holder includes: a core holder slider and a core mounting plate disposed on the core holder slider.

3. The translational plastic bottle injection blowing device according to claim 2, characterized in that, The cooling core is mounted on the core mounting plate via a cooling core holder.

4. The translational plastic bottle injection blowing device according to claim 3, characterized in that, The cooling core holder is provided with an air blowing cooling mechanism.

5. The translational plastic bottle injection blowing device according to claim 1, characterized in that, The specific arrangement of the blow molding opening and closing mechanism is as follows: the two ends of the fixed template are respectively provided with blow molding opening and closing hydraulic cylinders on the outer side of the corresponding blow molding, and the piston rod of the blow molding opening and closing hydraulic cylinder is connected to the blow molding half mold on the outer side of the blow molding mold.

6. The translational plastic bottle injection blowing device according to claim 5, characterized in that, The inner half of the blow molding mold is set on a fixed template.

7. The translational plastic bottle injection blowing device according to claim 1, characterized in that, The specific structure of the blow molding mold opening and closing mechanism includes: a blow molding opening and closing cylinder set on a fixed template facing the blow molding mold; an opening and closing push plate set on the piston rod of the blow molding opening and closing cylinder; a pair of locking ribs set on the fixed template at both ends of the blow molding mold via locking connection plates; locking oblique grooves corresponding to the corresponding locking ribs are opened at both ends of the opening and closing push plate and both ends of the blow molding half mold; the locking oblique grooves are movably inserted in the locking oblique grooves corresponding to the opening and closing push plate and the blow molding half mold; and the cavity bottom is set on the opening and closing push plate.

8. The translational plastic bottle injection blowing device according to claim 1, characterized in that, The specific structure of the blow molding mold opening and closing mechanism includes: a blow molding opening and closing cylinder set on a fixed template facing the blow molding mold; an opening and closing push plate set on the piston rod of the blow molding opening and closing cylinder; a pair of locking push plates set on the fixed template at both ends of the blow molding mold via locking connection plates; locking ramps symmetrically set on the inner side of each pair of locking push plates; inclined locking bosses corresponding to the corresponding locking ramps are opened at both ends of the blow molding half mold; the blow molding half mold is laterally slidably set in the opening and closing push plate; the locking ramps abut against the corresponding inclined locking bosses; and the cavity bottom is set on one of the blow molding half molds.

9. The translational plastic bottle injection blowing device according to claim 1, characterized in that, The specific structure of the half-part opening and closing mechanism includes: a half-part ejection cylinder and a half-part opening and closing rib installed in the core seat opposite the half-part mounting seat at the bottle mouth; a sliding guide groove arranged along the translational direction of the core seat is provided on the bottom surface of the half-part mounting seat at the bottle mouth; a sliding guide strip is slidably installed in the sliding guide groove; the piston rod of the half-part ejection cylinder is connected to the sliding guide strip in the corresponding half-part mounting seat at the bottle mouth; a half-part opening and closing groove corresponding to the half-part opening and closing rib is provided in the half-part mounting seat at the bottle mouth; and the half-part opening and closing rib is movably installed in the half-part opening and closing groove of the corresponding half-part mounting seat at the bottle mouth.

10. A translational plastic bottle injection blowing device according to any one of claims 1 to 9, characterized in that, Both ends of the moving mold base are provided with core limiting bosses on the side facing the core base, and the core translation force device is inserted in one of the core limiting bosses.

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