Mold core cooling pipe, separation blade and mold core structure suitable for bottle blank with small blank body inner diameter
By setting baffles on the outside of the mold core cooling pipe to construct cooling channels, the problem of insufficient cooling channels for small-diameter bottle preforms is solved, and effective cooling of the preform neck and body is achieved.
Patent Information
- Application Number
- CN202520111561.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing mold core cooling pipes cannot meet the cooling requirements of small-diameter bottle preforms, especially the cooling channels for the neck and body of the preform cannot be constructed.
Circular baffles and radial baffles are set on the outside of the preform cooling section of the mold core cooling tube, and extended baffles are set outward at the end of the preform cooling section to form a cooling flow channel. The cooling medium flows out through these baffles to achieve cooling.
By constructing a cooling channel on the outside of the mold core cooling tube, the problem of insufficient outer diameter of the mold core cooling tube is solved, making it suitable for molding bottle preforms with small inner diameters.
Smart Images
Figure CN223802887U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the bottle blank mould technical field, and concretely relates to a mould core cooling pipe, a blocking piece and a mould core structure suitable for a small-bore bottle blank. BACKGROUND
[0002] In the bottle blank mould, the mould core is a component for limiting the forming of the inner side wall of the bottle blank, the mould core cooling pipe is inserted into the mould core, the distance between the end of the mould core cooling pipe and the inner bottom of the mould core forms a water hole, and the cooling water channel defined between the outer wall of the mould core cooling pipe and the inner wall of the mould core is communicated with the hollow cooling channel of the mould core cooling pipe through the water hole. The mould core cooling pipe is sequentially provided with a connecting section, a main body section, a blank mouth cooling section, a blank neck cooling section and a blank body cooling section, the blank mouth cooling section, the blank neck cooling section and the blank body cooling section correspond to the blank mouth, the blank neck and the blank body of the bottle blank respectively, and the cooling channel penetrates through the connecting section, the main body section, the blank mouth cooling section, the blank neck cooling section and the blank body cooling section of the mould core cooling pipe.
[0003] However, for the bottle blank with a small blank body inner diameter, the size of the blank body cooling section or even the blank neck cooling section of the mould core cooling pipe is small, and the corresponding cooling channel and cooling water channel formed by the mould core cooling pipe and the corresponding mould core part cannot meet the cooling requirements of the blank neck and the blank body, so the existing mould core cooling pipe cannot be applied to the forming of the bottle blank with a small blank body inner diameter. UTILITY MODEL CONTENTS
[0004] In order to overcome at least part of the deficiencies in the prior art, the utility model provides a mould core cooling pipe, a blocking piece and a mould core structure suitable for a small-bore bottle blank.
[0005] The first technical scheme provided by the utility model is a mould core cooling pipe suitable for a small-bore bottle blank, one end of the mould core cooling pipe is a cooling end, the cooling end comprises a bottle blank cooling section and an extension blocking piece extending outward relative to the bottle blank cooling section, the inside of the mould core cooling pipe is provided with a cooling channel extending to the bottle blank cooling section, the outer wall of the bottle blank cooling section is provided with a circumferential blocking piece protruding outward and two radial blocking pieces, the two radial blocking pieces are oppositely arranged and connected with the circumferential blocking piece and the extension blocking piece at both ends, so as to divide the outer wall of the bottle blank cooling section into a first half and a second half, the first half is provided with a water outlet hole communicated with the cooling channel, and the part of the circumferential blocking piece opposite to the second half is provided with a first water passing hole communicated with both sides.
[0006] Further, the bottle blank cooling section comprises a blank mouth cooling section and a blank neck cooling section, the blank mouth cooling section, the blank neck cooling section and the extension barrier are sequentially arranged along the axial direction of the mold core cooling pipe, the cooling channel extends to the blank mouth cooling section, the circumferential barrier is arranged on the outer wall of the blank mouth cooling section, the radial barriers extend along the outer walls of the blank mouth cooling section and the blank neck cooling section, and the water outlet holes pass through the blank mouth cooling section of the first half and communicate with the cooling channel.
[0007] Further, the first water passage is provided with a plurality of first water passages, and the plurality of first water passages are distributed at equal angles in the circumferential direction.
[0008] Further, the first water passage is a first notch arranged on the outer wall of the circumferential barrier, or the first water passage is a first through hole.
[0009] Further, the extension barrier is provided with a second water passage communicating between both sides of the extension barrier, the second water passage is a second notch arranged at the extension end of the extension barrier, or the second water passage is a second through hole arranged close to the extension end of the extension barrier.
[0010] Further, the middle part of the mold core cooling pipe is a cooling pipe main section, the cooling pipe main section is provided with a positioning pin for installing and positioning the mold core cooling pipe, the positioning pin extends in the radial direction of the mold core cooling pipe and protrudes from the outer wall of the cooling pipe main section at both ends, and the other end of the mold core cooling pipe is an installation end.
[0011] The second technical solution provided by the utility model is a barrier, which is composed of the extension barrier, the circumferential barrier and the two radial barriers in the mold core cooling pipe of the first technical solution.
[0012] The third technical solution provided by the utility model is a mold core cooling pipe suitable for a small-bottle-blank inner diameter bottle blank, which comprises a mold core cooling pipe body and the barrier of the second technical solution, and the mold core cooling pipe body and the barrier are configured to form the mold core cooling pipe of the first technical solution.
[0013] The fourth technical solution provided by the utility model is a mold core structure suitable for a small-bottle-blank inner diameter bottle blank, which comprises a mold core and the mold core cooling pipe of the first or third technical solution.
[0014] The mold core has a mold core inner cavity for inserting and installing the mold core cooling pipe, and the mold core comprises a mold core main section and a bottle blank forming section, and the bottle blank forming section comprises a blank mouth forming section and a blank body forming section.
[0015] The cooling end and part of the cooling pipe body section of the mold core cooling pipe are inserted into the mold core inner cavity, the bottle blank cooling section corresponds to the blank mouth forming section, the circumferential partitioning piece and the two radial partitioning pieces abut against the inner wall of the blank mouth forming section respectively, and the extension partitioning piece abuts against the inner wall of the blank body forming section;
[0016] The cooling end of the mold core cooling pipe and the bottle blank forming section are water running spaces, part of the cooling pipe body section and the mold core body section are water outlet spaces, the circumferential partitioning piece separates the water running space and the water outlet space, the two radial partitioning pieces and the extension partitioning piece separate the water running space into a first half water running space and a second half water running space, the water outlet hole is connected with the first half water running space, the first water passing opening is connected with the first half water running space and the second half water running space, and the second water passing opening is connected with the second half water running space and the water outlet space.
[0017] Further, the bottle blank forming section further comprises a blank neck forming section between the blank mouth forming section and the blank body forming section, the blank mouth cooling section corresponds to the blank mouth forming section, and the blank neck cooling section corresponds to the blank neck forming section.
[0018] The beneficial effects of the utility model are: the circumferential partitioning piece and the two radial partitioning pieces are arranged on the bottle blank cooling section, and the extension partitioning piece is arranged outwardly at the end of the bottle blank cooling section, so that a cooling flow channel is constructed outside the bottle blank cooling section, the cooling medium in the cooling channel flows out from the water outlet hole, flows through the first half part, the space on the same side of the extension partitioning piece and the first half part, the space on the same side of the extension partitioning piece and the second half part, the second half part, and then flows out from the first water passing opening, therefore, the cooling channel does not need to pass through the whole mold core cooling pipe, for the mold core cooling pipe section with a small blank body inner space, the cooling flow channel is constructed outside the mold core cooling pipe to solve the problem that the outer diameter size of the mold core cooling pipe is insufficient and the cooling channel cannot be constructed, so that the mold core cooling pipe is applicable to the bottle blank forming with a small blank body inner diameter. ACCURATE DRAWINGS
[0019] Figure 1 It is a front structure schematic view of the mold core cooling pipe of the embodiment;
[0020] Figure 2 It is a front structure schematic view of the mold core cooling pipe of the embodiment; Figure 1 It is a sectional view of the middle section A-A;
[0021] Figure 3 It is a perspective view of the mold core cooling pipe of the embodiment;
[0022] Figure 4 It is an enlarged view of the B part; Figure 3
[0023] Figure 5 is a front structure schematic view of the mold core structure of the embodiment;
[0024] Figure 6 is a front structure schematic view of the mold core structure of the embodiment; Figure 5 is a sectional view of the middle section C-C;
[0025] Figure 7 is a front structure schematic view of the mold core structure of the embodiment;
[0026] Figure 8 is a front structure schematic view of the mold core structure of the embodiment; Figure 7 is a sectional view of the middle section D-D. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model.
[0028] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.
[0029] In addition, if the embodiments of the utility model involve descriptions of "first" or "second" and the like, the descriptions of "first" or "second" and the like are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.
[0030] For example, Figures 1 to 4As shown, the embodiment discloses a mold core cooling pipe suitable for small-bore bottle preform. One end of the mold core cooling pipe 1 is a cooling end, and the other end is a mounting end. A cooling channel 11 for cooling medium circulation is arranged in the mold core cooling pipe 1, and the cooling channel 11 extends along the axial direction of the mold core cooling pipe 1. The cooling end includes a bottle preform cooling section 12 and an extension barrier 17 extending outwardly along the axial direction relative to the bottle preform cooling section 12. The outer wall of the bottle preform cooling section 12 is provided with an outwardly protruding circumferential barrier 13 and two radial barriers 14. The two radial barriers 14 respectively extend along the axial direction with the outer wall of the bottle preform cooling section 12, and the two radial barriers 14 are oppositely arranged to divide the outer wall of the bottle preform cooling section 12 into a first half 15 and a second half 16 in the circumferential direction. One end of each of the two radial barriers 14 is connected to the circumferential barrier 13, and the other end of each of the two radial barriers 14 is connected. The first half 15 is provided with a water outlet hole 151 connected to the cooling channel 11. The circumferential barrier 13 opposite to the second half 16 is provided with a first water passage 131 penetrating the circumferential barrier 13 in the axial direction. Preferably, the first water passage 131 is a first through hole or a first notch, and the first water passage 131 is provided with a plurality of first water passages 131 distributed at equal angles in the circumferential direction on the circumferential barrier 13. When the first water passage 131 is a first notch, the first notch is arranged on the outer wall of the circumferential barrier 13. The mold core cooling pipe 1 of the embodiment constructs a cooling flow channel outside the bottle preform cooling section 12 by arranging the circumferential barrier 13 and the two radial barriers 14 on the bottle preform cooling section 12 and arranging the extension barrier 17 extending outwardly at the end of the bottle preform cooling section 12. The cooling medium in the cooling channel 11 flows out from the water outlet hole 151, flows through the first half 15, the space on the same side of the first half 15 as the extension barrier 17, the space on the same side of the second half 16 as the extension barrier 17, the second half 16, and then flows out from the first water passage 131. Therefore, the cooling channel 11 does not need to pass through the entire mold core cooling pipe 1. For the part of the mold core cooling pipe 1 with a small internal space of the preform, the problem of insufficient outer diameter of the mold core cooling pipe 1 and inability to construct the cooling channel 11 is solved by constructing a cooling flow channel outside the mold core cooling pipe 1, so that the mold core cooling pipe 1 of the embodiment is suitable for bottle preform forming with a small preform internal diameter.
[0031] As a preferred embodiment, the bottle preform cooling section 12 comprises a preform mouth cooling section 121 and a preform neck cooling section 122, the preform mouth cooling section 121, the preform neck cooling section 122 and the extension barrier 17 are sequentially arranged along the axial direction of the mold core cooling pipe 1, the cooling channel 11 extends to the preform mouth cooling section 121, the inner diameter of the preform mouth of the small-bore preform is relatively large, so the cooling channel 11 can extend to the preform mouth cooling section 121, while the inner diameters of the preform neck and the preform body are relatively small, so the preform neck cooling section 122 and the extension barrier 17 arranged on the inner wall of the preform neck and the preform body cannot be provided with the cooling channel 11, and the present embodiment overcomes the technical problem that the preform neck and the preform body of the small-bore preform cannot be cooled due to the relatively small inner diameters of the preform neck and the preform body by constructing the cooling flow channel outside the preform neck cooling section 122 and the extension barrier 17. Correspondingly, the radial barrier 14 comprises a preform mouth barrier portion 141 arranged in the preform mouth cooling section 121 and a preform neck barrier portion 142 arranged in the preform neck cooling section 122, one end of the preform mouth barrier portion 141 is connected with the circumferential barrier 13, the other end of the preform mouth barrier portion 141 is connected with one end of the preform neck barrier portion 142, the other ends of the two preform neck barrier portions 142 are connected, one end of the extension barrier 17 is connected with the connection end of the two preform neck barrier portions 142, and the other end of the extension barrier 17 extends outward along the axial direction of the mold core cooling pipe 1.
[0032] As a preferred embodiment, the other end of the extension barrier 17 extending outward along the axial direction of the mold core cooling pipe 1 is provided with a second water passage 171, the second water passage 171 penetrates from one side of the extension barrier 17 relative to the first half portion 15 to the other side relative to the second half portion 16, and the second water passage 171 is a through hole or a notch.
[0033] As a preferred embodiment, the mold core cooling pipe 1 further comprises a connecting section 18 and a cooling pipe main body section 19, the connecting section 18, the cooling pipe main body section 19 and the bottle preform cooling section 12 are sequentially connected along the axial direction of the mold core cooling pipe 1. The cooling pipe main body section 19 is provided with a positioning pin 191 at a position close to the connecting section 18 for cooperating with one end surface of the mold core 2 to control the installation and positioning of the mold core cooling pipe 1, the positioning pin 191 extends along the radial direction of the mold core cooling pipe 1, and the two ends of the positioning pin 191 protrude from the outer wall of the cooling pipe main body section 19.
[0034] Based on the mold core cooling pipe disclosed in the above embodiment suitable for the small-bore preform, the present embodiment further discloses a barrier, which is composed of the extension barrier 17, the circumferential barrier 13 and the two radial barriers 14 in the above mold core cooling pipe 1.
[0035] Based on the mold core cooling tube and baffle plate disclosed in the above embodiments, this embodiment also discloses another mold core cooling tube suitable for bottle preforms with small inner diameters, including a mold core cooling tube body and the baffle plate of the above embodiments. The mold core cooling tube body and the baffle plate are configured to constitute the mold core cooling tube of the above embodiments. That is, the mold cooling tube of this embodiment can be an integrally formed structure or a split structure assembled from the mold core cooling tube body and the baffle plate.
[0036] like Figures 5 to 8 As shown, based on the above embodiment, a mold core cooling tube suitable for bottle preforms with small inner diameter is disclosed. This embodiment also discloses a mold core structure suitable for bottle preforms with small inner diameter, including a mold core 2 and the aforementioned mold core cooling tube 1. The mold core 2 has an inner cavity 21 inside which the mold core cooling tube 1 can be inserted and fitted. The mold core 2 has a preform forming section 22 for defining the forming of the inner wall of the preform. The preform forming section 22 includes a preform opening forming section 221 corresponding to the forming of the inner wall of the preform opening, a preform neck forming section 222 corresponding to the forming of the inner wall of the preform neck, and a preform body forming section 223 corresponding to the forming of the inner wall of the preform body. The preform cooling section 12 corresponds to the preform opening forming section 221. Specifically, the preform opening cooling section 121 corresponds to the preform opening forming section 221, and the preform neck cooling section 122 corresponds to the preform neck forming section 222. The mold core 2 also includes a mold core body section 23 corresponding to the cooling pipe body section 19. The mold core body section 23, the blank opening forming section 221, the blank neck forming section 222 and the blank body forming section 223 are connected in sequence. The mold core cooling pipe 1 is inserted into the mold core inner cavity 21 for installation. The positioning pin 191 is engaged with one end face of the mold core 2 to control the depth of the mold core cooling pipe 1 inserted into the mold core 2.
[0037] Specifically, the circumferential baffle 13 and the billet opening baffle 141 are engaged with the inner wall of the billet opening forming section 221. When the first water inlet 131 is in the form of a first through hole, the first water inlet 131 is a first water passage 3; when the first water inlet 131 is in the form of a first notch, a first water passage 3 is formed between the first water inlet 131 and the inner wall of the billet opening forming section 221.
[0038] The neck partition 142 is snapped onto the inner wall of the neck forming section 222;
[0039] The extended baffle 17 is snapped onto the inner wall of the billet forming section 223. When the second water inlet 171 is in the form of a second through hole, the second water inlet 171 is a second water passage 4. When the second water inlet 171 is in the form of a second notch, a second water passage 4 is formed between the second water inlet 171 and the inner wall of the billet forming section 223. Alternatively, the length of the extended baffle 17 can be set to be shorter than the length of the inner wall of the billet forming section 223. In this case, there is no need to set the second water inlet 171. There is a water passage gap between the end of the extended baffle 17 and the inner wall of the billet forming section 223. The water passage gap is the second water passage 4.
[0040] Specifically, a water running space is formed between the outer wall of the preform cooling section 12 of the mold core cooling pipe 1 and the inner wall of the preform forming section 22 of the mold core 2; the mold core cooling pipe 1 is inserted into the mold core inner cavity 21, and a water outlet space 6 is formed between the outer wall of the cooling pipe body section 19 and the inner wall of the mold core body section 23; the water running space is divided into a first half water running space 51 and a second half water running space 52 by the radial blocking piece 14 and the extension blocking piece 17, the cooling channel 11 and the first half water running space 51 are connected and communicated through the water outlet hole 151, the first half water running space 51 and the second half water running space 52 are connected and communicated through the second water passing channel 4, and the second half water running space 52 and the water outlet space 6 are connected and communicated through the first water passing channel 3.
[0041] The flow path of the cooling medium is as follows:
[0042] Cooling channel 11→water outlet hole 151→first half water running space 51→second water passing channel 4→second half water running space 52→first water passing channel 3→water outlet space 6.
[0043] In other embodiments, the water outlet space 6 serves as a water inlet space, and the flow path of the cooling medium is opposite to the above path.
[0044] The above only describes the preferred embodiments of the present application, and any technical solutions that achieve the same purpose by basically the same means are within the protection scope of the present application.
Claims
1. A core cooling tube suitable for use with small parison inside diameter bottle parisons, characterized by: One end of the mold core cooling pipe is a cooling end, the cooling end comprises a bottle blank cooling section and an extended partition sheet extending outward relative to the bottle blank cooling section, an internal part of the mold core cooling pipe is provided with a cooling channel extending to the bottle blank cooling section, an outer wall of the bottle blank cooling section is provided with an outwardly protruding circumferential partition sheet and two radial partition sheets, the two radial partition sheets are oppositely arranged and two ends thereof are connected with the circumferential partition sheet and the extended partition sheet respectively, so as to divide the outer wall of the bottle blank cooling section into a first half and a second half, the first half is provided with a water outlet hole communicating with the cooling channel, a part of the circumferential partition sheet opposite to the second half is provided with a first water passing opening communicating with both sides thereof.
2. A core cooling tube suitable for use with small body inside diameter bottle preforms according to claim 1, characterized in that: The bottle blank cooling section comprises a blank mouth cooling section and a blank neck cooling section, the blank mouth cooling section, the blank neck cooling section and the extended partition sheet are sequentially arranged along an axial direction of the mold core cooling pipe, the cooling channel extends to the blank mouth cooling section, the circumferential partition sheet is arranged on an outer wall of the blank mouth cooling section, the radial partition sheets extend along outer walls of the blank mouth cooling section and the blank neck cooling section in a shape-following manner, and the water outlet hole penetrates through the blank mouth cooling section of the first half and communicates with the cooling channel.
3. A core cooling tube suitable for use with small body inside diameter bottle preforms according to claim 1, characterized in that: The first water passing opening is provided with a plurality of first water passing openings, and the plurality of first water passing openings are distributed at equal angles along a circumferential direction.
4. A core cooling tube suitable for use with small body inside diameter preforms according to claim 1 or 3, characterized in that: The first water passing opening is a first notch, and the first notch is arranged on an outer wall of the circumferential partition sheet; or the first water passing opening is a first through hole.
5. A core cooling tube suitable for use with small body inside diameter bottle preforms according to claim 2, characterized in that: The extended partition sheet is provided with a second water passing opening communicating with both sides thereof, the second water passing opening is a second notch, and the second notch is arranged on an extension end of the extended partition sheet; or the second water passing opening is a second through hole, and the second through hole is arranged close to the extension end of the extended partition sheet.
6. A core cooling tube suitable for use with small body inside diameter bottle preforms according to claim 1, characterized in that: A middle part of the mold core cooling pipe is a cooling pipe main section, the cooling pipe main section is provided with a positioning pin for installation and positioning of the mold core cooling pipe, the positioning pin extends along a radial direction of the mold core cooling pipe and two ends thereof protrude from an outer wall of the cooling pipe main section, and the other end of the mold core cooling pipe is a mounting end.
7. A baffle characterized by: The partition sheet is composed of the extended partition sheet, the circumferential partition sheet and the two radial partition sheets in the mold core cooling pipe according to any one of claims 1 to 6.
8. A core cooling tube suitable for use with small parison inside diameter bottle preforms, characterized by: The mold core cooling pipe body and the partition sheet according to claim 7 are configured to form the mold core cooling pipe according to any one of claims 1 to 6.
9. A core structure suitable for use in a small-parison inside diameter parison, characterized by: The mold core comprises a mold core and the mold core cooling pipe according to claim 5. An internal part of the mold core has a mold core cavity for insertion and installation of the mold core cooling pipe, the mold core comprises a mold core main section and a bottle blank forming section, and the bottle blank forming section comprises a blank mouth forming section and a blank body forming section. The cooling end and part of the cooling pipe main section of the mold core cooling pipe are inserted into the mold core cavity, the bottle blank cooling section corresponds to the blank mouth forming section, the circumferential partition sheet and the two radial partition sheets respectively abut against inner walls of the blank mouth forming section, and the extended partition sheet abuts against an inner wall of the blank body forming section. The cooling end of the mold core cooling pipe is a water passing space with the bottle blank forming section, part of the cooling pipe body section is a water outlet space with the mold core body section, the circumferential partitioning piece separates the water passing space and the water outlet space, the two radial partitioning pieces and the extension partitioning piece separate the water passing space into a first half water passing space and a second half water passing space, the water outlet hole connects the cooling channel with the first half water passing space, the first water passing opening connects the first half water passing space with the second half water passing space, and the second water passing opening connects the second half water passing space with the water outlet space.
10. A core structure suitable for use in a small-parison inside diameter parison according to claim 9, characterized in that: The bottle blank forming section further comprises a blank neck forming section between the blank mouth forming section and the blank body forming section, the blank mouth cooling section corresponds to the blank mouth forming section, and the blank neck cooling section corresponds to the blank neck forming section.