Injection mold for sports water bottle preform based on independent locking

Abstract

The utility model provides a kind of sports water bottle embryo injection mould based on independent mould locking belongs to mould technical field.It includes upper mould plate, lower mould plate and base, the upper mould plate and lower mould plate between being provided with two bottle blank forming assembly.Bottle blank forming assembly, which is composed of upper forming block, lower forming block, core mould and split lip mould structure, can be injection molded to form sports water bottle blank, after bottle blank injection molding, through the cooperation of translation plate, built-in guide seat and rolling guide structure, when lower mould plate is lifted under the action of external lifting drive mechanism, split lip mould structure realizes automatic separation to realize the demoulding of bottle blank thread port, without additional power component for translation plate translation, effectively reduce mould cost, mould plate guide structure can guide and limit when upper mould plate and lower mould plate move.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a motion water bottle preform injection mold based on independent locking. Background Technology

[0002] When injection molding a sports water bottle preform, the lip mold at the threaded opening needs to be moved horizontally at the same time as the product is ejected so that the threaded groove on the lip mold is disengaged from the thread on the product. In the existing technology, the mold needs to be equipped with both an ejection mechanism and a translational core-pulling mechanism. The mold requires more power components and has a higher cost.

[0003] For example, a Chinese patent discloses a combined mold lip for a preform mold [application number: 202311630512.1], which includes two mirror-symmetrical half-molding lip components. Each half-molding lip component includes a half-molding lip base and a half-molding lip insert fixed to the half-molding lip base. The half-molding lip insert and the half-molding lip base are configured to define the forming surface of the half-molding lip component. The preform mold includes at least one forming component, which includes a mold core, a mold cavity, and a mold lip defining at least part of the preform forming. The mold lip is a combined mold lip. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a motion water bottle preform injection mold based on independent locking.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A motion water bottle preform injection mold based on independent locking includes an upper mold plate, a lower mold plate, and a base. Two preform forming components are arranged between the upper and lower mold plates. Each preform forming component includes an upper forming block with an upper mold cavity, a lower forming block with a lower mold cavity, a core mold inserted from bottom to top into the upper and lower mold cavities, and a separable lip mold structure arranged between the upper and lower forming blocks. The lower mold plate is provided with two translation plates that are respectively connected to the separable lip mold structures in the two preform forming components. Built-in guide seats are provided on the left and right sides of the translation plates. A rolling guide structure is provided between the translation plates and the built-in guide seats. The built-in guide seats are slidably connected to the lower mold plate and fixedly connected to the base at their bottom. The base is also provided with a mold plate guide structure.

[0007] In the above-mentioned injection mold for a moving water bottle preform based on independent locking, the split lip mold structure includes two semi-circular cross-sections that can form an annular lip mold. The annular lip mold has an external thread forming structure on its inner circumferential surface, and the two semi-lip molds are respectively connected to two translation plates.

[0008] In the aforementioned injection mold for a moving water bottle preform based on independent mold locking, the external thread forming structure includes a thread forming groove recessed inward on the inner circumferential surface of the annular lip mold.

[0009] In the aforementioned injection mold for a moving water bottle preform based on independent locking, the rolling guide structure includes two guide grooves symmetrically arranged on the inner wall of the built-in guide seat. The guide grooves are composed of a first vertical section, an inclined section, and a second vertical section arranged sequentially from bottom to top. The distance between the inclined section and the preform forming component gradually increases from bottom to top.

[0010] In the aforementioned injection mold for a moving water bottle preform based on independent mold locking, the left and right sides of the translation plate are rotatably connected to rollers via a rotating shaft, and the rollers are inserted into the guide groove.

[0011] In the above-mentioned injection mold for a moving water bottle preform based on independent mold locking, the top two sides of the lower mold plate are provided with T-shaped limiting grooves, and the bottom of the translation plate is fixedly connected with a limiting slider that is inserted into the limiting groove.

[0012] In the above-mentioned injection mold for a moving water bottle preform based on independent mold locking, the template guiding structure includes four guide pillars fixed on the base. The guide pillars vertically penetrate the lower template and are inserted into the upper template. Both the upper and lower templates are slidably connected to the guide pillars.

[0013] In the above-mentioned injection mold for a moving water bottle preform based on independent mold locking, a lower sliding sleeve is fixedly connected to the lower mold plate, and an upper sliding sleeve is fixedly connected to the upper mold plate. Both the upper sliding sleeve and the lower sliding sleeve are slidably connected to the guide post.

[0014] In the above-mentioned injection mold for a moving water bottle preform based on independent mold locking, the upper and lower templates are provided with guide seat grooves that are adapted to the built-in guide seats.

[0015] In the above-mentioned injection mold for a moving water bottle preform based on independent mold locking, the bottom of the upper mold plate is fixedly connected to a lower limit block corresponding to the upper molding block, and the top of the lower limit block abuts against the bottom of the upper molding block.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. The preform forming assembly, consisting of an upper forming block, a lower forming block, a core mold, and a separable lip mold structure, can be injection molded to form a moving water bottle preform. After the preform is injection molded, the lower mold plate is lifted by an external lifting drive mechanism through the cooperation of a translation plate, an internal guide seat, and a rolling guide structure. The separable lip mold structure automatically separates to demold the threaded opening of the preform. There is no need to set up an additional power component for the translation plate, which effectively reduces the mold cost. The template guide structure can guide and limit the movement of the upper and lower mold plates.

[0018] 2. When the lower template is lifted, the translation plate moves upward with it. During the movement of the translation plate, it achieves smooth guidance and direction conversion through different sections, ensuring accurate and stable separation of the split lip mold structure and improving the reliability of mold operation. The translation plate is inserted into the guide groove through the rollers connected by the rotating shaft. When the rollers move from bottom to top in the inclined section, the translation plate can drive the half lip mold to move outward horizontally, thereby realizing the separation of the half lip mold and the preform. At the same time, rolling friction is used instead of sliding friction, reducing the movement resistance of the translation plate, reducing component wear, extending the service life of the mold, and making the movement of the translation plate more flexible and smooth, ensuring the separation efficiency of the lip mold.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the external structure at the upper template.

[0023] Figure 4 This is a partial structural schematic diagram of the present invention. Detailed Implementation

[0024] like Figures 1-4As shown, a motion water bottle preform injection mold based on independent locking includes an upper mold plate 1, a lower mold plate 2, and a base 3. Two preform forming components 4 are arranged between the upper mold plate 1 and the lower mold plate 2. Each preform forming component 4 includes an upper forming block 5 with an upper mold cavity, a lower forming block 6 with a lower mold cavity, a core mold 7 inserted from bottom to top into the upper and lower mold cavities, and a separate lip mold structure 8 arranged between the upper forming block 5 and the lower forming block 6. The lower mold plate 2 is provided with two translation plates 9, which are respectively connected to the separate lip mold structures 8 in the two preform forming components 4. The translation plates 9 are provided with built-in guide seats 10 on their left and right sides. A rolling guide structure 11 is provided between the translation plates 9 and the built-in guide seats 10. The built-in guide seats 10 are slidably connected to the lower mold plate 2 and fixedly connected to the base 3 at their bottom. The base 3 is also provided with a mold plate guide structure 13.

[0025] In this invention, the preform forming assembly 4, consisting of an upper forming block, a lower forming block, a core mold, and a separable lip mold structure 8, can be injection molded to form a moving water bottle preform. After the preform is injection molded, the lower template is lifted by an external lifting drive mechanism through the cooperation of a translation plate, an internal guide seat, and a rolling guide structure. The separable lip mold structure automatically separates to demold the threaded opening of the preform, eliminating the need for additional power components for the translation plate, thus effectively reducing mold costs. The template guide structure 13 can guide and limit the movement of the upper and lower templates.

[0026] Specifically, the split lip mold structure 8 includes two semi-annular semi-lip molds 14 that can form an annular lip mold. The annular lip mold has an external thread forming structure on its inner circumferential surface. The two semi-lip molds 14 are respectively connected to two translation plates 9. The split lip mold structure uses two semi-annular semi-lip molds to form an annular lip mold, which is then connected to the translation plates. This design facilitates the installation and disassembly of the lip mold. Furthermore, during demolding, the two semi-lip molds can separate with the translation plates, making the demolding of the threaded opening of the sports water bottle preform smoother and improving the ease of mold use.

[0027] Specifically, the external thread forming structure includes a thread forming groove recessed inward on the inner circumferential surface of the annular lip die. The external thread forming structure uses an inwardly recessed thread forming groove, directly set on the inner circumferential surface of the annular lip die. This simple forming structure can accurately form the thread of a moving kettle preform, ensuring thread precision and reducing the defect rate caused by poor thread forming.

[0028] Specifically, the rolling guide structure 11 includes two guide grooves 15 symmetrically arranged on the inner wall of the built-in guide seat 10. Each guide groove 15 consists of a first vertical section 16, an inclined section 17, and a second vertical section 18 arranged sequentially from bottom to top. The distance between the inclined section 17 and the preform forming assembly 4 gradually increases from bottom to top. When the lower mold plate is lifted, the translation plate moves upward with it. During the movement of the translation plate, smooth guidance and direction conversion are achieved through different sections, ensuring accurate and stable separation of the split lip mold structure and improving the reliability of mold operation.

[0029] Specifically, rollers 19 are rotatably connected to the left and right sides of the translation plate 9 via rotating shafts, and the rollers 19 are inserted into the guide grooves 15. When the rollers connected to the rotating shafts of the translation plate are inserted into the guide grooves, and the rollers move from bottom to top in the inclined section, the translation plate can drive the half-lip mold to move outward horizontally, thereby realizing the separation of the half-lip mold and the preform. At the same time, rolling friction is used instead of sliding friction, reducing the movement resistance of the translation plate, reducing component wear, extending the service life of the mold, and making the movement of the translation plate more flexible and smooth, ensuring the efficiency of lip mold separation.

[0030] Specifically, the top two sides of the lower template 2 are recessed with T-shaped limiting grooves 20, and the bottom of the translation plate 9 is fixedly connected with a limiting slider 21 that is inserted into the limiting groove 20. The limiting grooves of the lower template and the limiting sliders of the translation plate cooperate to limit the horizontal movement range of the translation plate, prevent the translation plate from deviating or falling out, enhance the movement stability of the translation plate, and ensure the accuracy and safety of the separation process of the split lip mold structure.

[0031] Specifically, the template guiding structure 13 includes four guide posts 22 fixed on the base 3. The guide posts 22 vertically penetrate the lower template 2 and insert into the upper template 1. Both the upper template 1 and the lower template 2 are slidably connected to the guide posts 22. The guide posts of the template guiding structure penetrate the upper and lower templates, providing precise guidance for the opening and closing movements of the upper and lower templates. This ensures accurate positioning of the upper and lower templates during mold closing and opening, avoids poor preform forming due to template misalignment, and improves mold forming accuracy.

[0032] Specifically, a lower sliding sleeve 23 is fixedly connected to the lower template 2, and an upper sliding sleeve 24 is fixedly connected to the upper template 1. Both the upper sliding sleeve 24 and the lower sliding sleeve 23 are slidably connected to the guide post 22. The slidable connection between the upper sliding sleeve and the lower sliding sleeve and the guide post reduces the friction between the template and the guide post, making the opening and closing movement of the template smoother and more stable. At the same time, it protects the guide post and the template, extends the service life of the guide structure, and improves the overall performance of the mold.

[0033] Specifically, the upper template 1 and the lower template 2 are provided with guide seat grooves 12 that are adapted to the built-in guide seat 10. The guide seat grooves are adapted to the built-in guide seat, providing installation and movement space for the built-in guide seat, making the built-in guide seat more securely installed in the mold, and more tightly fitted with the translation plate, ensuring the normal operation of the rolling guide structure, improving the stability of mold operation, and the built-in design can reduce the space requirements of the mold during operation.

[0034] Specifically, a lower limit block 25 corresponding to the upper forming block 5 is fixedly connected to the bottom of the upper template 1, and the top of the lower limit block 25 abuts against the bottom of the upper forming block 5. The lower limit block at the bottom of the upper template abuts against the upper forming block, limiting the downward movement range of the upper forming block, ensuring the accurate position of the upper forming block when the mold is closed, guaranteeing the forming accuracy of the preform forming component, and avoiding product quality problems caused by positional deviation of the upper forming block.

[0035] The working principle of this utility model is as follows: The preform forming assembly 4, which consists of an upper forming block, a lower forming block, a core mold, and a separate lip mold structure 8, can be injection molded to form a moving water bottle preform. After the preform is injection molded, the lower template is lifted under the action of an external lifting drive mechanism through the cooperation of a translation plate, an internal guide seat, and a rolling guide structure. The separate lip mold structure automatically separates to demold the threaded opening of the preform. There is no need to set up an additional power component for the translation plate, which effectively reduces the mold cost. The template guide structure 13 can guide and limit the movement of the upper and lower templates.

[0036] The split-type lip mold structure uses two semi-annular lip molds to form an annular lip mold, which is connected to a translation plate. This design facilitates the installation and disassembly of the lip mold. During demolding, the two semi-lip molds can separate with the translation plate, making the demolding of the sports water bottle preform's threaded opening smoother and improving the ease of mold use. The external thread forming structure uses an inwardly recessed thread forming groove, directly set on the inner circumferential surface of the annular lip mold. The forming structure is simple and can accurately form the thread of the sports water bottle preform, ensuring thread accuracy and reducing the defect rate caused by poor thread forming. When the lower mold plate is lifted, the translation plate moves with the lower mold plate. As the translation plate moves upward, it achieves smooth guidance and direction conversion through different sections, ensuring accurate and stable separation of the split lip mold structure and improving the reliability of mold operation. The translation plate is inserted into the guide groove through the rollers connected by the rotating shaft. When the rollers move from bottom to top in the inclined section, the translation plate can drive the half lip mold to move outward horizontally, thereby realizing the separation of the half lip mold and the preform. At the same time, rolling friction is used instead of sliding friction, reducing the movement resistance of the translation plate, reducing component wear, extending the service life of the mold, and making the movement of the translation plate more flexible and smooth, ensuring the separation efficiency of the lip mold.

[0037] The limiting groove of the lower template cooperates with the limiting slider of the translation plate to limit the horizontal movement range of the translation plate, preventing it from shifting or detaching, enhancing the stability of the translation plate's movement, and ensuring the accuracy and safety of the separation process of the split lip mold structure. The guide pillars of the template guide structure penetrate through the upper and lower templates, providing precise guidance for the opening and closing movements of the upper and lower templates, ensuring accurate positioning of the upper and lower templates during mold closing and opening, avoiding poor preform forming due to template misalignment, and improving mold forming accuracy. The upper and lower sliding sleeves are slidably connected to the guide pillars, reducing friction between the template and the guide pillars, making the template opening and closing movements smoother and more stable, while protecting the guide pillars. The guide posts and templates extend the service life of the guide structure and improve the overall performance of the mold. The guide seat groove is compatible with the built-in guide seat, providing installation and movement space for the built-in guide seat, making the built-in guide seat more stable in the mold and more closely matched with the translation plate. This ensures the normal operation of the rolling guide structure and improves the stability of mold operation. The built-in design can reduce the space requirements of the mold during operation. The lower limit block at the bottom of the upper template abuts against the upper forming block, limiting the downward movement range of the upper forming block and ensuring that the upper forming block is accurately positioned when the mold is closed. This ensures the forming accuracy of the preform forming components and avoids product quality problems caused by the positional deviation of the upper forming block.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A motion water bottle preform injection mold based on independent mold locking, comprising an upper mold plate (1), a lower mold plate (2), and a base (3), characterized in that, Two preform forming components (4) are provided between the upper template (1) and the lower template (2). The preform forming component (4) includes an upper forming block (5) with an upper mold cavity, a lower forming block (6) with a lower mold cavity, a core mold (7) inserted from bottom to top into the upper mold cavity and the lower mold cavity, and a separate lip mold structure (8) provided between the upper forming block (5) and the lower forming block (6). The lower template (2) is provided with two translation plates (9) that are respectively connected to the separate lip mold structures (8) in the two preform forming components (4). The translation plates (9) are provided with built-in guide seats (10) on the left and right sides. A rolling guide structure (11) is provided between the translation plates (9) and the built-in guide seats (10). The built-in guide seats (10) are slidably connected to the lower template (2) and fixedly connected to the base (3) at the bottom. The base (3) is also provided with a template guide structure (13).

2. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 1, characterized in that, The split lip mold structure (8) includes two semi-circular cross sections that can form an annular lip mold (14). The annular lip mold has an external thread forming structure on its inner circumferential surface. The two semi-circular lip molds (14) are respectively connected to two translation plates (9).

3. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 2, characterized in that, The external thread forming structure includes a thread forming groove recessed inward on the inner circumferential surface of the annular lip die.

4. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 3, characterized in that, The rolling guide structure (11) includes two guide grooves (15) symmetrically arranged on the inner side wall of the built-in guide seat (10). The guide groove (15) is composed of a first vertical section (16), an inclined section (17), and a second vertical section (18) arranged sequentially from bottom to top. The distance between the inclined section (17) and the preform forming component (4) gradually increases from bottom to top.

5. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 4, characterized in that, The left and right sides of the translation plate (9) are rotatably connected to rollers (19) via a rotating shaft, and the rollers (19) are inserted into the guide groove (15).

6. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 5, characterized in that, The lower template (2) has inwardly recessed T-shaped limiting grooves (20) on both sides of its top, and the bottom of the translation plate (9) is fixedly connected to a limiting slider (21) inserted into the limiting groove (20).

7. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 6, characterized in that, The template guide structure (13) includes four guide columns (22) fixed on the base (3). The guide columns (22) vertically penetrate the lower template (2) and are inserted into the upper template (1). The upper template (1) and the lower template (2) are slidably connected to the guide columns (22).

8. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 7, characterized in that, The lower template (2) is fixedly connected to a lower sliding sleeve (23), and the upper template (1) is fixedly connected to an upper sliding sleeve (24). Both the upper sliding sleeve (24) and the lower sliding sleeve (23) are slidably connected to the guide post (22).

9. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 8, characterized in that, The upper template (1) and lower template (2) are provided with guide seat grooves (12) that are adapted to the built-in guide seat (10).

10. The injection mold for a moving water bottle preform based on independent mold locking as described in claim 9, characterized in that, The bottom of the upper template (1) is fixedly connected to a lower limit block (25) corresponding to the upper forming block (5), and the top of the lower limit block (25) abuts against the bottom of the upper forming block (5).

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