CN213137769U - Molding device for blow molding synthetic resin bottle - Google Patents
Molding device for blow molding synthetic resin bottle Download PDFInfo
- Publication number
- CN213137769U CN213137769U CN202021235312.8U CN202021235312U CN213137769U CN 213137769 U CN213137769 U CN 213137769U CN 202021235312 U CN202021235312 U CN 202021235312U CN 213137769 U CN213137769 U CN 213137769U
- Authority
- CN
- China
- Prior art keywords
- mold
- neck
- members
- molding apparatus
- neck mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 73
- 238000000071 blow moulding Methods 0.000 title claims abstract description 19
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 13
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims description 13
- 239000000110 cooling liquid Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000000470 constituent Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a forming device for blow molding synthetic resin bottle. Provided is a novel molding device which can sufficiently suppress the cost required to cope with a need for blow molding a bottle using preforms having different neck shapes. At least two neck mold support members (62) that can be opened and closed in the lateral direction are arranged in association with a neck mold (8), and at least two neck mold members (52) that can be opened and closed in the lateral direction are respectively detachably attached to the respective neck mold support members (62).
Description
Technical Field
The utility model relates to a forming device for blow molding synthetic resin system bottle, this synthetic resin system bottle have the main part, be located the oral area of the top of this main part, between main part and oral area neck and be located the bottom of the below of main part.
Background
As bottles for beverages, synthetic resin bottles molded from suitable synthetic resins such as polyethylene terephthalate are widely put into practical use. As is well known to those skilled in the art, such synthetic resin bottles are formed by: a preform (pre-molded body) composed of a mouth portion and a neck portion, and a bottom-bottomed cylindrical blow-molded portion formed by blow molding thereafter into the body portion and the bottom portion is formed by injection molding or compression molding, and then the body portion and the bottom portion are molded by blow molding the blow-molded portion of the preform. As disclosed in patent document 1 below, a molding device for blow molding a preform blow molding portion includes: a body part mold which includes two body part mold members that are openable and closable in a lateral direction and defines an outer shape of the body part in a closed state; a bottom mold that defines an outer shape of a bottom; and a neck mold which includes two neck mold members that are openable and closable in the lateral direction, and defines a space that conforms to the outer shape of the neck in a closed state. The neck portion mold member is closed and the neck portion of the preform is fixed, and then the body portion mold member is closed, and the blow molding space is defined by the body portion mold and the bottom portion mold, and the blow molding portion of the preform is blow molded.
The molding apparatus disclosed in patent document 1 further includes two body section mold support members that are openable and closable in the lateral direction, and each body section mold member is detachably attached to each body section mold support member.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2014-208434
SUMMERY OF THE UTILITY MODEL
Problem to be solved by utility model
In the conventional molding apparatus as described above, when the shape of the main body of the blow-molded bottle is changed, the neck mold and the bottom mold need not be changed, and the main body mold member detachably attached to the main body mold support member can be detached from the main body mold support member, and another main body mold member corresponding to the changed shape of the main body can be detachably attached to the main body mold support member again. However, when a bottle needs to be blow-molded using preforms having different neck shapes, this cannot be appropriately handled. To describe this in more detail, particularly in the case of forming a synthetic resin bottle excellent in heat resistance, it is necessary to heat the preform forming section of the preform, but it is important to appropriately cool the neck portion of the preform from the viewpoint of preventing the neck portion of the preform from being deformed. However, in the conventional molding apparatus, a major part of a relatively expensive cooling unit for appropriately cooling the neck portion of the preform is disposed in the neck mold member, and therefore, the cost required for replacing the neck mold member is considerably high.
The present invention has been made in view of the above circumstances, and a main technical object thereof is to provide a new and improved molding apparatus capable of coping with blow molding of a bottle using preforms having different neck shapes while sufficiently suppressing the required cost.
Means for solving the problems
As a result of intensive studies, the inventors of the present invention have found that the above-described main technical problem can be achieved by arranging at least two neck mold supporting members that are laterally openable and closable in association with a neck mold, and by detachably attaching each of the at least two neck mold members that are laterally openable and closable to each of the neck mold supporting members.
That is, according to the present invention, there is provided a molding apparatus for blow molding a synthetic resin bottle having a main body portion, an opening portion located above the main body portion, a neck portion interposed between the main body portion and the opening portion, and a bottom portion located below the main body portion, as a molding apparatus for blow molding a synthetic resin bottle that achieves the above-described main technical problem, characterized in that the molding apparatus has: a body part mold which includes at least two body part mold members that are openable and closable in a lateral direction and defines an outer shape of the body part in a closed state; a bottom mold for defining an outer shape of the bottom; and a neck mold including at least two neck mold members that are openable and closable in a lateral direction and defining a space that conforms to an outer shape of the neck portion in a closed state, the molding apparatus including at least two neck mold support members that are openable and closable in the lateral direction, each of the neck mold members being detachably attached to each of the neck mold support members.
Preferably, a cooling unit is disposed in each of the neck mold supporting members. Preferably, the cooling unit includes a cooling liquid flow path formed in the neck mold support member. Preferably, a heat insulation unit is disposed between the neck mold member and the body mold member, and preferably the heat insulation unit includes a space formed between the neck mold member and the body mold member. Preferably, the temperature adjustment unit is not disposed in the body mold member. Preferably, the molding apparatus includes at least two body mold support members that are laterally openable and closable, and each of the body mold members is detachably attached to each of the body mold support members. Preferably, an insulating unit is disposed between the neck mold support member and the body mold support member, and desirably, the insulating unit includes a space defined by a recess formed in at least one of a lower surface of the neck mold support member and an upper surface of the body mold support member abutting each other, or the insulating unit includes an insulating member interposed between the neck mold support member and the body mold support member. Preferably, a temperature adjusting means is disposed in the main body mold supporting member. Preferably, the molding apparatus has a bottom mold support member to which the bottom mold is attached, and the temperature adjustment unit is disposed in the bottom mold support member. Preferably, each of the neck mold members, each of the neck mold supporting members, each of the body mold members, and each of the body mold supporting members are disposed so as to face each other in a lateral direction, and each of the neck mold members, each of the neck mold supporting members, each of the body mold members, and each of the body mold supporting members is movable in a direction away from each other.
Effect of the utility model
In the molding apparatus according to the present invention, when it is necessary to mold a bottle using preforms having different neck shapes, the neck mold member attached to the neck mold supporting member is detached from the neck mold supporting member, and the neck mold member is attached to the neck mold supporting member in accordance with preforms having different neck shapes, so that the necessary cost can be adequately reduced and the molding apparatus can be appropriately adapted. For the cooling of the neck portion, at least a main portion of the cooling unit is disposed in the neck portion mold support member instead of the neck portion mold, and an appropriate heat insulating unit is disposed between the neck portion mold and the body portion mold, whereby cooling can be performed as needed.
Drawings
Fig. 1 is a front view of a typical example of a bottle molded by the molding device of the present invention.
Fig. 2 is a top view of a preferred embodiment of a molding apparatus constructed in accordance with the present invention in a closed position.
Fig. 3 is a sectional view a-a of the molding apparatus shown in fig. 2.
Fig. 4 is a B-B sectional view of the molding apparatus shown in fig. 3.
Fig. 5(a), 5(b), and 5(c) are views showing a body mold member of the molding apparatus shown in fig. 2 in a single body, in which fig. 5(a) is a plan view, fig. 5(b) is a front view, and fig. 5(c) is a bottom view.
Fig. 6(a), 6(b), and 6(c) are views showing the body mold supporting member of the molding apparatus shown in fig. 2 in a single body, in which fig. 6(a) is a plan view, fig. 6(b) is a front view, and fig. 6(c) is a bottom view.
Fig. 7(a) and 7(b) are views showing a neck mold member of the molding apparatus shown in fig. 2 in a single body, in which fig. 7(a) is a plan view and fig. 7(b) is a front view.
Fig. 8(a), 8(b), 8(c), and 8(d) are views showing the neck mold supporting member of the molding apparatus shown in fig. 2 in a single body, in which fig. 8(a) is a plan view, fig. 8(b) is a front view, fig. 8(c) is a bottom view, and fig. 8(d) is a rear view.
Fig. 9 is a partially enlarged view of a portion indicated by C in fig. 3.
Fig. 10 is a view showing an opened state of the molding device shown in fig. 2.
Description of the reference numerals
2. A molding device; 4. a main body part mold; 6. a bottom mold; 8. a neck mold; 10. a main body part mold member; 28. a main body part mold support member; 48. a bottom mold support member; 52. a neck mold member; 62. a neck mold support member; 76. a heat insulating unit (space); 78. an insulating unit (space).
Detailed Description
Hereinafter, preferred embodiments of the molding apparatus according to the present invention will be described in further detail with reference to the drawings.
Fig. 1 shows a typical example of a bottle molded by the molding apparatus of the present invention. A bottle, generally designated by reference numeral 102, which is formed by blow molding a preform formed of a suitable synthetic resin such as polyethylene terephthalate, has a body portion 104, a mouth portion 106 located above the body portion 104, a neck portion 108 interposed between the body portion 104 and the mouth portion 106, and a bottom portion 110 located below the body portion 104. The main portion of the body portion 104 has a cylindrical shape, but the upper end portion thereof is formed in a circular truncated cone shape. The mouth portion 106 has a cylindrical shape, and a male screw 112 is formed on the outer peripheral surface thereof. The bottom portion 110 has a shape that bulges upward in longitudinal section, and the lower surface 114 of the bottom portion 110 also bulges upward.
Fig. 2 to 4 show a preferred embodiment of the molding apparatus of the present invention, and the molding apparatus denoted by reference numeral 2 as a whole includes a body portion mold 4 for defining the outer shape of the body portion 104 of the bottle 102 in the closed state, a bottom portion mold 6 for defining the outer shape of the bottom portion 110 of the bottle 102, and a neck portion mold 8 for defining a space conforming to the outer shape of the neck portion 108 of the bottle 102 in the closed state.
As explained with reference to fig. 3, the body portion mold 4 includes two body portion mold members 10 opposed to each other in the lateral direction. With reference to fig. 3, 5(a), 5(b), and 5(c), the main body portion mold member 10 is long in the vertical direction and has an arc shape in cross section extending over an angular range of 180 degrees in the circumferential direction. A body portion molding inner surface 18 is provided on the inner peripheral surface of the body portion mold member 10, and the body portion molding inner surface 18 has a desired shape for molding the body portion 104 of the bottle 102. A substantially horizontal shoulder surface 20 is formed at the upper end portion of the body portion mold member 10, and the body portion mold member 10 includes a cylindrical portion 22 located below the shoulder surface 20 and extending substantially vertically in the vertical direction, and a truncated cone portion 24 located above the shoulder surface 20. An engagement groove 26 extending substantially horizontally in the circumferential direction is formed in the upper end portion of the outer peripheral surface of the cylindrical portion 22. The engagement groove 26 has a rectangular cross section. In addition, no temperature adjustment unit is disposed in the body mold 4.
Referring to fig. 3, the molding device 2 includes two body mold supporting members 28, and the two body mold members 10 are attached to the two body mold supporting members 28, respectively. The two body part mold support members 28 are also laterally opposed to each other, respectively. With reference to fig. 3, 6a, 6b, and 6 c, the body mold support member 28 is long in the vertical direction and has a circular arc shape in cross section extending over an angular range of 180 degrees in the circumferential direction, and the curvature of the inner circumferential surface corresponds to the curvature of the outer circumferential surface of the body mold member 10 (see also fig. 4). An engaging protrusion 30 protruding radially inward extends substantially horizontally in the circumferential direction at the upper end portion of the inner circumferential surface of the main body mold supporting member 28. The engaging protrusion 30 has a rectangular cross section, and the cross section thereof corresponds to the cross section of the engaging groove 26 formed in the main body mold member 10. The main body mold support member 28 has 4 through holes 38 extending substantially vertically at equal angular intervals in the circumferential direction and having a circular cross section and penetrating vertically. The temperature adjusting unit 40 is disposed in each through hole 38 (see fig. 3). In the illustrated embodiment, the temperature adjustment unit 40 is an electric heater. If necessary, the temperature adjusting unit 40 may circulate the temperature-adjusted liquid.
Although detailed drawings are omitted with reference to fig. 3, the bottom mold 6 has a substantially circular truncated cone shape protruding upward and has a bottom molding upper surface 46 having a shape corresponding to the shape of the lower surface 114 of the bottle 102.
The molding device 2 has a bottom mold support member 48 to which the bottom mold 6 is mounted. The bottom mold supporting member 48 is a column shape that is long in the up-down direction, and the bottom mold 6 is fixed to the upper surface of the bottom mold supporting member 48 by an appropriate fixing unit. A temperature adjusting unit is disposed in the bottom mold supporting member 48. The temperature adjustment unit includes a fluid flow path 50 provided inside the bottom mold-support member 48.
As explained with reference to fig. 2 and 3, the neck mold 8 includes two neck mold members 52 opposed to each other in the lateral direction. The neck mold member 52 is preferably formed of a member having good thermal conductivity. Referring to fig. 2 and 3, and fig. 7(a) and 7(b), the neck mold member 52 has an arc shape extending over an angular range of 180 degrees in the circumferential direction. At a radially central upper portion of the neck mold member 52 is provided a neck support inner surface 54, the neck support inner surface 54 having a desired shape for conforming to the outer diameter of the neck 108 of the bottle 102. A semicircular space 56 is provided on the lower surface of the neck mold member 52. A locking protrusion 58 protruding radially outward extends in the circumferential direction at the lower end portion of the outer circumferential surface of the neck mold member 52.
In the molding apparatus of the present invention, it is important that the molding apparatus has at least two neck mold supporting members 62, and each neck mold member 52 is detachably attached to each neck mold supporting member 62. As shown in fig. 2 and 3, in the illustrated embodiment, two neck mold supporting members 62 are provided so as to face each other in the lateral direction. Referring to fig. 2 and 3, and fig. 8(a), 8(b), 8(c), and 8(d), the neck mold supporting member 62 has an arc shape extending over an angular range of 180 degrees in the circumferential direction, and the curvature of the inner circumferential surface thereof corresponds to the curvature of the outer circumferential surface of the neck mold member 52 (see fig. 2). A locking groove 64 extending substantially horizontally in the circumferential direction is formed in the radially inner peripheral surface of the upper end portion of the neck mold supporting member 62. The locking groove 64 corresponds to the shape of the outer peripheral surface of the neck mold member 52. A space 66 is provided in the center of the lower surface of the neck mold support member 62. The space portion 66 is composed of a semicircular portion 66a located below and a circular truncated cone portion 66b located above the semicircular portion. The outer peripheral edge of the lower surface of the neck mold support member 62 is formed with 3 arc-shaped recesses 68. As understood by referring to the plan view of fig. 8(a), a cooling unit including a cooling liquid flow path 70 is disposed in the neck mold supporting member 62. An inlet 72 and an outlet 74 are provided adjacent to each other in the circumferential direction on the outer circumferential surface of the neck mold supporting member 62 (see the rear view of fig. 8 (d)), and the coolant flow path 70 is reversed after approaching the locking groove 64 from the inlet 72 to the diametrically opposite side, then advances away from the locking groove 64 to the diametrically one side, and reaches the outlet 74.
The assembly of the above-described components will be described with reference to fig. 2 to 4. The main body mold support member 28 and the main body mold member 10 are aligned by fitting the engagement protrusion 30 of the main body mold support member 28 into the engagement groove 26 of the main body mold 4, and are detachably attached by a fixing means not shown. When the body mold member 10 is mounted to the body mold support member 28, the inner peripheral surface of the body mold support member 28 and the outer peripheral surface of the body mold member 10 are in close contact. On the other hand, the neck mold support member 62 and the neck mold member 52 are aligned by engagement of the locking groove 64 of the neck mold support member 62 and the locking protrusion 58 of the neck mold member 52, and are detachably attached by a fixing means not shown. When the neck mold member 52 is mounted to the neck mold support member 62, the outer peripheral surface of the neck mold member 52 abuts against the inner peripheral surface of the neck mold support member 62. Then, the neck mold 8 and the neck mold support member 62 are placed on the upper surfaces of the body mold member 10 and the body mold support member 28, and the body mold support member 28 and the neck mold support member 62 are fastened by a fastening means such as a bolt, not shown. In this way, the respective body-forming inner surfaces 18 of the two body mould members 10 are opposed, and the respective neck-supporting inner surfaces 54 of the two neck mould members 52 are opposed, the bottom mould 6 being arranged between the two body mould members 10 which are opposed to each other.
The description is further continued with reference to fig. 9. When the respective constituent components are assembled as described above, a space 76 is formed between the neck mold member 52 and the body mold member 10. That is, the neck mold member 52 and the body mold member 10 are separated (a slight gap exists between the upper end surface of the truncated cone-shaped portion 24 of the body mold member 10 and the lower surface of the neck mold member 52), and the space 76 constitutes a heat insulation means between the neck mold member 52 and the body mold member 10. The space 76 also extends between the body mould member 10 and the neck mould support member 62. Thus, the body mould member 10 is separated from the neck mould support member 62 and the space 76 also constitutes an insulating unit between the body mould member 10 and the neck mould support member 62. In the illustrated embodiment, further, since the recess 68 is formed in the lower surface of the neck mold supporting member 62 (more specifically, the outer peripheral edge portion thereof) that abuts against the upper surface of the main body mold supporting member 28, a space indicated by reference numeral 78 is also formed between the neck mold supporting member 62 and the main body mold supporting member 28. This space 78 constitutes an insulating unit between the neck mold support member 62 and the body mold support member 28.
The respective constituent components combined as described above are integrated with the body portion mold member 10, the body portion mold support member 28, the neck portion mold member 52, and the neck portion mold support member 62, and are laterally openable and closable between a closed state shown in fig. 2 to 4 and an open state shown in fig. 10 by a drive unit, not shown. That is, the body mold member 10, the body mold support member 28, the neck mold member 52, and the neck mold support member 62 are all openable and closable in the lateral direction. In the illustrated embodiment, the body mold members 10, the body mold support members 28, the neck mold members 52, and the neck mold support members 62 are moved in directions away from each other, but may be rotated in directions opposite to each other about a common rotational axis, if necessary.
Returning to fig. 3, the cooling liquid flow path 70 disposed in the neck mold supporting member 62 is connected to a circulation type cooling liquid supply device 80 via an inlet 72 and an outlet 74, and the cooling liquid is supplied to the cooling liquid flow path 70. Thereby, the neck mold member 52 is cooled by the coolant flow path 70 via the neck mold supporting member 62. On the other hand, the liquid flow path 50 disposed in the bottom mold supporting member 48 is connected to a circulating temperature adjusting liquid supply device 82, and supplies the temperature-adjusted liquid to the liquid flow path 50. Thereby, the temperature of the bottom mold 6 is adjusted by the liquid flow path 50 through the bottom mold supporting member 48. The temperature adjusting means 40 (an electric heater in the illustrated embodiment) disposed in the through hole 38 of the main body mold supporting member 28 is connected to the power supply 84 to adjust the temperature. Thereby, the temperature of the body mold member 10 is adjusted by the temperature adjusting unit 40 through the body mold supporting member 28. In the illustrated embodiment, since the heat insulating unit (space 76) is present between the neck mold member 52 and the body mold member 10, and the heat insulating unit (space 78) is also present between the neck mold supporting member 62 and the body mold supporting member 28, heat transfer from the temperature adjusting unit 40 disposed in the body mold supporting member 28 (and the liquid flow path 50 disposed in the bottom mold supporting member 48) to the neck mold supporting member 62 is sufficiently suppressed, and the neck mold supporting member 62 is prevented from being heated by the temperature adjusting unit 40 (and the liquid flow path 50).
Next, a process of molding a heat-resistant bottle using the molding apparatus of the illustrated embodiment will be described.
First, the body portion mold member 10 having an appropriate body portion molding inner surface is prepared in accordance with the outer shape of the bottle to be molded, and the body portion mold member 10 is attached to the body portion mold support member 28. Similarly, a neck mold member 52 having an appropriate neck support inner surface is prepared in accordance with the shape of the neck of the bottle to be molded, and the neck mold member 52 is attached to the neck mold support member 62. Then, the respective components are combined as described above to constitute the molding apparatus 2. Next, the preform heated in the blow molding section is placed with the molding device 2 in the open state, and then the neck portion of the preform is fixed with the molding device 2 in the closed state. Then, the bottle 102 is molded by blow-molding the blow-molded portion of the preform in the blow-molding space defined by the body mold 4 and the bottom mold 6 (i.e., the space defined by the body-molding inner surface 18 and the bottom-molding upper surface 46). At this time, the body portion molding inner surface 18 and the bottom portion molding upper surface 46 are heated, and thus the molding portion of the preform (i.e., the outer surface of the body portion 104 and the lower surface 114 of the bottom portion 110 of the bottle 102 after molding) is heated. Thus, a bottle excellent in heat resistance is formed. On the other hand, since the neck support inner surface 54 is cooled, the neck portion of the preform is cooled. This prevents the neck 108 and the periphery of the molded bottle from being deformed. As described above, in the illustrated embodiment, since the heat insulating means (the space 76) is present between the neck mold member 52 and the body mold member 10 and the heat insulating means (the space 78) is also present between the neck mold supporting member 62 and the body mold supporting member 28, heat transfer from the temperature adjusting means 40 (and the liquid flow path 50) to the neck mold supporting member 62 is sufficiently suppressed, and the neck mold supporting member 62 is prevented from being heated by the temperature adjusting means 40 (and the liquid flow path 50). The bottle 102 thus molded is taken out from the molding device 2 by changing the molding device 2 from the closed state to the open state.
In the molding apparatus according to the present invention, when it is necessary to mold a bottle using preforms having different neck shapes, the neck mold member 52 attached to the neck mold support member 62 is detached from the neck mold support member 62, and the neck mold member is attached to the neck mold support member 62 in accordance with preforms having different neck shapes, so that the necessary cost can be adequately reduced and the molding apparatus can be appropriately adapted. For the cooling of the neck portion, at least a main portion of the cooling unit is disposed in the neck portion mold support member 62 instead of the neck portion mold 8, and an appropriate heat insulating unit (space 76) is disposed between the neck portion mold 8 and the body portion mold 4, whereby cooling can be performed as needed.
The molding apparatus of the present invention has been described in detail with reference to the drawings, but the molding apparatus of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention. For example, in the illustrated embodiment, the heat insulating means between the neck mold supporting member 62 and the body mold supporting member 28 is constituted by the space 78, and the space 78 is defined by the recess 68 formed in the lower surface of the neck mold supporting member 62 abutting against each other, but instead of the space 78, an appropriate heat insulating member may be inserted between the neck mold supporting member 62 and the body mold supporting member 28. Further, the recessed portion 68 is provided on the lower surface of the neck mold supporting member 62, but the recessed portion 68 may be provided on the upper surface of the body mold supporting member 28 instead of the lower surface of the neck mold supporting member 62, or the recessed portion 68 may be provided on both the lower surface of the neck mold supporting member 62 and the upper surface of the body mold supporting member 28. In the illustrated embodiment, the cross-section of the outer shape of the bottle and the forming device is circular, but they may be square if necessary.
Claims (13)
1. A molding apparatus for blow molding a synthetic resin bottle having a main body, a mouth portion located above the main body, a neck portion interposed between the main body and the mouth portion, and a bottom portion located below the main body,
the molding device comprises:
a body part mold which includes at least two body part mold members that are openable and closable in a lateral direction and defines an outer shape of the body part in a closed state;
a bottom mold for defining an outer shape of the bottom; and
a neck mold which comprises at least two neck mold members capable of being opened and closed in the transverse direction and defines a space conforming to the outer shape of the neck in a closed state,
the molding device has at least two neck mold supporting members that are openable and closable in the lateral direction, and each of the neck mold members is detachably attached to each of the neck mold supporting members.
2. The molding apparatus as defined in claim 1,
a cooling unit is disposed in each neck mold supporting member.
3. The molding apparatus as defined in claim 2,
the cooling unit includes a cooling liquid flow path formed in the neck mold support member.
4. The molding apparatus as claimed in any one of claims 1 to 3,
the temperature adjusting unit is not disposed in the main body mold member.
5. The molding apparatus as claimed in any one of claims 1 to 3,
a heat insulation unit is disposed between the neck mold member and the body mold member.
6. The molding apparatus as defined in claim 5,
the heat insulation unit includes a space formed between the neck mold member and the body mold member.
7. The molding apparatus as claimed in any one of claims 1 to 3,
the molding device has at least two body section mold support members that are openable and closable in the lateral direction, and each of the body section mold members is detachably attached to each of the body section mold support members.
8. The molding apparatus as defined in claim 7,
a heat insulating unit is disposed between the neck mold supporting member and the body mold supporting member.
9. The molding apparatus as defined in claim 8,
the heat insulating unit includes a space defined by a recess formed in at least one of a lower surface of the neck mold supporting member and an upper surface of the body mold supporting member that abut against each other.
10. The molding apparatus as defined in claim 8,
the insulation unit includes an insulation member interposed between the neck mold support member and the body mold support member.
11. The molding apparatus as defined in claim 7,
a temperature adjusting unit is disposed in the main body mold supporting member.
12. The molding apparatus as claimed in any one of claims 1 to 3,
the molding device has a bottom mold support member to which the bottom mold is attached, and a temperature adjustment unit is disposed in the bottom mold support member.
13. The molding apparatus as defined in claim 7,
each of the neck mold members, each of the neck mold supporting members, each of the body mold members, and each of the body mold supporting members are disposed so as to face each other in the lateral direction, and each of the neck mold members, each of the neck mold supporting members, each of the body mold members, and each of the body mold supporting members are movable in directions away from each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019128066A JP7355537B2 (en) | 2019-07-10 | 2019-07-10 | Molding equipment for blow molding synthetic resin bottles |
| JP2019-128066 | 2019-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213137769U true CN213137769U (en) | 2021-05-07 |
Family
ID=74531169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021235312.8U Expired - Fee Related CN213137769U (en) | 2019-07-10 | 2020-06-29 | Molding device for blow molding synthetic resin bottle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7355537B2 (en) |
| CN (1) | CN213137769U (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3573374B2 (en) * | 1995-05-08 | 2004-10-06 | 株式会社青木固研究所 | Preform molding method in injection stretch blow molding |
| JP3808194B2 (en) * | 1997-12-15 | 2006-08-09 | 日精エー・エス・ビー機械株式会社 | Preform crystallization method and apparatus |
| JP6263975B2 (en) | 2013-03-27 | 2018-01-24 | 大日本印刷株式会社 | Blow mold for plastic bottle |
| JP6911380B2 (en) | 2017-02-24 | 2021-07-28 | 東洋製罐株式会社 | Manufacturing method of synthetic resin container and blow molding mold |
| US11198240B2 (en) | 2017-03-02 | 2021-12-14 | Nissei Asb Machine Co., Ltd. | Molding mold |
-
2019
- 2019-07-10 JP JP2019128066A patent/JP7355537B2/en active Active
-
2020
- 2020-06-29 CN CN202021235312.8U patent/CN213137769U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021014015A (en) | 2021-02-12 |
| JP7355537B2 (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10899064B2 (en) | Preform neck crystallization method | |
| US7735663B2 (en) | Neck of a synthetic resin bottle | |
| KR100356307B1 (en) | A manufacturing apparatus for producing a container made of a thermoplastic material by blow molding or stretch blow molding | |
| US9475243B2 (en) | Large returnable container, method and apparatus for molding the same, and blow mold with separate heating zones | |
| US6444159B2 (en) | Blow mold shell and shell assembly | |
| CN102958673A (en) | Production method for heat resistant container | |
| CA2838804C (en) | An injection mould component for preforms made of plastic material | |
| US20180104885A1 (en) | Unit for moulding containers provided with an offset radiator and an integrated temperature probe | |
| BRPI1007359B1 (en) | COVER FOR SEALING AN OPENING DEFINED BY A MOUTH OF A CONTAINER AND SEALING METHOD OF AN OPENING DEFINED BY A MOUTH OF A CONTAINER USING A COVER | |
| JPH0735085B2 (en) | Biaxially stretched crystalline resin container and method for producing the same | |
| US8226402B2 (en) | Mold for fabricating thermoplastic containers, and a blow-molding or stretch-blow molding installation equipped with such a mold | |
| CN213137769U (en) | Molding device for blow molding synthetic resin bottle | |
| JP2003053823A (en) | Preform for blow-molding bottle | |
| US9573316B2 (en) | Blow molding mold for plastic bottle | |
| CN111283986A (en) | Bottle blank heating mechanism with handle | |
| US20220274311A1 (en) | Die unit, blow molding device, and blow molding method | |
| JP4775791B2 (en) | Preform holding jig and thermal crystallization treatment equipment | |
| US20110298234A1 (en) | Device for gripping a hollow body by the neck thereof | |
| JPH11208630A (en) | Neck structure of stretch-blow molded bottle | |
| JP7279025B2 (en) | Injection mold, lip mold included therein, and injection molding method | |
| CN112105491B (en) | Blow mould and blow moulding device | |
| CN113631347A (en) | Preform temperature control device and temperature control method, and resin molded container manufacturing device and manufacturing method | |
| MXPA97008042A (en) | Device for manufacturing containers of a thermoplastic material by blowing or by stretching-sopl |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |