Plastic bottle blowing mold
By manufacturing the insert inverted and bottle mouth thread cavity on the tube embryo of the blow mold of the plastic bottle, the problem of the need for separate mold design in different bottle mouth structures is solved, and the stability and cost reduction of the bottle body buckle position are achieved.
Patent Information
- Application Number
- CN202420934196.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the prior art, corresponding bottle body molds need to be designed separately for plastic bottle bodies with different bottle opening structures, resulting in an increase in mold opening cost.
Design a plastic bottle blow mold, which can make the insert inverted on the tube embryo and use the tube embryo slider to prepare the bottle mouth thread cavity to achieve the integrity and stability of the buckle position on the bottle body, allowing replacement according to needs. Different models of screw inserts to avoid the replacement of the entire mold.
The stable and unified bottle buckle position is achieved, and the mold replacement cost is reduced, avoiding the increased mold opening cost due to different bottle opening structures.
Smart Images
Figure CN222156595U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a plastic bottle blow molding mold. Background Art
[0002] Blow molding molds can achieve one-time molding of plastic bottles, which not only improves production efficiency, but also simplifies the manufacturing process and reduces production costs. In addition, the manufacturing process of blow molding molds is relatively simple, usually only requires a blow molding machine and a mold, and does not require complex equipment and process flow issues. The plastic bottles produced by blow molding molds have stable quality and good durability. Due to the characteristics of the blow molding process, the quality of plastic bottles is well guaranteed and has a long service life. When the blow molding process generates a bottle body, it usually first prepares a tube embryo through an extrusion device, and then places the tube embryo in a blow molding mold for blow molding to form a bottle body.
[0003] When producing cosmetic bottles, a threaded structure is usually formed at the opening of the bottle body for installing sealing parts such as bottle caps. For products in the same series, similar bottles are usually provided and differentiated in bottle details. For example, decorative parts are provided at the bottle mouth to distinguish different types or functions. However, in the prior art, corresponding bottle body molds need to be designed separately for bottles with different bottle mouth structures, which increases the mold opening cost. Utility Model Content
[0004] Based on this, it is necessary to provide a plastic bottle blow molding mold to address the above technical problems. By manufacturing an inverted insert on the tube embryo, the integrity and stability of the buckle position on the bottle body can be achieved during the preparation process, and different types of screw-on inserts can be replaced according to needs, avoiding replacement of the entire mold and reducing costs.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A plastic bottle blow molding mold, comprising:
[0007] Lower mold blank;
[0008] An upper mold base, adapted to the lower mold base, wherein a bottle body cavity for preparing a bottle body is formed between the upper mold base and the lower mold base;
[0009] A screw-on insert, the screw-on insert comprising an upper insert engaged with an upper mold base, and a lower insert engaged with a lower mold base, wherein an undercut ring groove is formed between the upper insert and the upper mold base;
[0010] A tube embryo slider is used for preparing a bottle mouth thread cavity of a bottle body, and an inner cavity of the tube embryo slider forms an insert undercut corresponding to an undercut ring groove.
[0011] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, the upper insert is detachably connected to the upper mold base by threads, and the lower insert is detachably connected to the lower mold base by threads.
[0012] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, both the upper insert and the lower insert are provided with a receiving groove matching the bottle mouth thread.
[0013] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, the inner wall of the inverted insert is an arc-shaped structure.
[0014] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, exhaust holes are provided on both the upper mold base and the lower mold base.
[0015] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, a groove for clamping the lower punch is provided at the opening of the tube embryo slider.
[0016] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, the tube embryo sliding block is a two-section structure, and an inclined surface is arranged on the outer side of the upper end of the tube embryo sliding block.
[0017] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, a limiting annular groove 1 is provided on the tube embryo sliding member, and a limiting annular groove 2 corresponding to the limiting annular groove 1 is provided on the upper insert and the upper mold embryo member.
[0018] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, support columns are provided at corresponding positions of the upper mold base and the lower mold base.
[0019] As a preferred embodiment of the plastic bottle blow molding mold provided by the utility model, cooling channels are provided on both the upper mold base and the lower mold base.
[0020] Compared with the prior art, the utility model has the following beneficial effects:
[0021] The utility model provides a plastic bottle blow molding mold, which prepares a tube embryo through a tube embryo slider, and simultaneously forms a bottle mouth thread cavity and an insert buckle on the bottle mouth on the tube embryo, and by manufacturing the insert buckle on the tube embryo, the integrity and stability of the buckle position on the bottle body are achieved during the preparation process, the prepared tube embryo with the buckle position is moved to the lower mold embryo and the upper mold embryo, the bottle mouth is buckled and limited by the screw insert, and the buckle position on the tube embryo matches the buckle ring groove on the screw insert, and the tube embryo is limited, and the bottle body prepared by the above design can have its buckle position stable and uniform, and screw inserts of different models can be replaced according to needs, so as to avoid replacement of the overall mold and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0023] Figure 1 The overall structural diagram provided by the utility model;
[0024] Figure 2 A schematic diagram of the structure of the lower mold base and the lower insert provided by the utility model;
[0025] Figure 3 The utility model provides Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 A schematic diagram of the bottle body and lower insert structure provided by the utility model;
[0027] Figure 5 This is a schematic diagram of the structure of the tube embryo and the tube embryo slider provided by the utility model when the mold is closed;
[0028] Figure 6 This is a schematic diagram of the bottle body and buckle structure prepared for the utility model.
[0029] The markings in the figure are as follows:
[0030] 1. Lower mold base; 2. Upper mold base; 3. Support column; 4. Screw-on insert; 5. Lower insert; 6. Upper insert; 7. Bottle body cavity; 8. Accommodating groove; 9. Second limiting annular groove; 10. Inverted ring groove; 11. Tube blank slider; 12. Bottle mouth thread cavity; 13. Inverted insert; 14. Lower punch; 15. First limiting annular groove; 16. Buckle position. DETAILED DESCRIPTION
[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0032] As described in the background art, for bottles with different bottle mouth structures, corresponding bottle body molds need to be designed separately, which increases the mold making cost.
[0033] Specifically, please refer to Figures 1 to 6 , a plastic bottle blow molding mold, comprising:
[0034] Lower mold blank 1;
[0035] An upper mold base 2 is adapted to the lower mold base 1, and a bottle body cavity 7 for preparing a bottle body is formed between the upper mold base 2 and the lower mold base 1;
[0036] A screw-on insert 4, the screw-on insert 4 comprises an upper insert 6 engaged with the upper mold base 2, and a lower insert 5 engaged with the lower mold base 1, the upper insert 6 and the upper mold base 2 forming an undercut ring groove 10;
[0037] The tube blank slider 11 is used to prepare a bottle mouth thread cavity 12 of a bottle body, and the inner cavity of the tube blank slider 11 forms an insert undercut 13 corresponding to the undercut ring groove 10 .
[0038] The utility model provides a plastic bottle blow molding mold, which prepares a tube embryo through a tube embryo slider 11, and simultaneously forms a bottle mouth thread cavity 12 located on the bottle mouth and an insert undercut 13 on the tube embryo. By manufacturing the insert undercut 13 on the tube embryo, the following can be formed: Figure 6 The buckle position 16 shown in the figure realizes the integrity and stability of the buckle position 16 on the bottle body during the preparation process. The prepared tube embryo with the buckle position 16 is moved to the lower mold embryo 1 and the upper mold embryo, the bottle mouth is buckled and limited by the screw insert 4, and the buckle position 16 on the tube embryo is matched with the inverted ring groove 10 on the screw insert 4, and the tube embryo is limited. The bottle body prepared by the above design can make its buckle position 16 stable and uniform, and different types of screw inserts 4 can be replaced according to needs, avoiding the replacement of the entire mold and reducing costs.
[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0042] Example 1
[0043] Please refer to Figures 1 to 4 A plastic bottle blow molding mold, an upper mold base 2 is adapted to a lower mold base 1, and a bottle body cavity 7 for preparing a bottle body is formed between the upper mold base 2 and the lower mold base 1.
[0044] It is worth mentioning that Figure 2 and Figure 3 As shown, the screw-on insert 4 includes an upper insert 6 engaged with the upper mold base 2, and a lower insert 5 engaged with the lower mold base 1. The upper insert 6 and the upper mold base 2 form an inverted ring groove 10. The upper insert 6 is detachably connected to the upper mold base 2 through a thread, and the lower insert 5 is detachably connected to the lower mold base 1 through a thread. The upper insert 6 and the lower mold base 1 are detachably connected to the upper mold base 2 and the lower mold base 1. Different types of screw-on inserts 4 can be replaced according to needs, avoiding replacement of the entire mold and reducing costs. Only different bottle mouth types need to be adjusted according to needs, saving mold costs and time for replacing molds.
[0045] In addition, both the upper insert 6 and the lower insert 5 are provided with a receiving groove 8 matching the bottle mouth thread. The thread is formed when the tube blank is prepared, and the formed thread corresponds to the receiving groove 8, thereby avoiding damage to the thread on the tube blank when the upper insert 6 and the lower insert 5 are molded together. The inner wall of the insert undercut 13 is an arc-shaped structure, such as Figure 6 As shown, the outer circle of the buckle position 16 formed by the inset undercut 13 is an arc-shaped structure, and a decorative ring or other components can be installed at the arc-shaped buckle position 16 of the bottle body to distinguish and decorate the product.
[0046] Preferably, exhaust holes are provided on the upper mold base 2 and the lower mold base 1 to facilitate the preparation of a complete bottle body in the bottle body cavity 7 and reduce defects. Cooling channels are provided on the upper mold base 2 and the lower mold base 1 to quickly cool the plasticity of the prepared bottle body, as well as cool the upper mold base 2 and the lower mold base 1 to achieve the purpose of rapid preparation.
[0047] And, if Figure 1 As shown, support columns 3 are provided at corresponding positions of the upper mold base 2 and the lower mold base 1 to limit the positions of the upper mold base 2 and the lower mold base.
[0048] Example 2
[0049] A plastic bottle blow molding mold provided in Example 1 is further optimized, specifically, as follows Figure 5 As shown, the tube embryo slider 11 is used to prepare the bottle mouth thread cavity 12 of the bottle body, and the inner cavity of the tube embryo slider 11 forms an insert undercut 13 corresponding to the undercut ring groove 10. The tube embryo slider 11 is used to prepare the tube embryo, and the bottle mouth thread cavity 12 located on the bottle mouth and the insert undercut 13 are formed on the tube embryo at the same time. By manufacturing the insert undercut 13 on the tube embryo, the following can be formed: Figure 6 The buckle position 16 shown is used to achieve integrity and stability of the buckle position 16 on the bottle body during the manufacturing process.
[0050] In addition, the tube embryo slider 11 is a two-stage structure, and an inclined surface is provided on the outer side of the upper end of the tube embryo slider 11, which is convenient for opening the tube embryo slider 11, taking out the tube embryo, and moving it to the upper mold embryo part 2 and the lower mold embryo part 1 to prepare the bottle body.
[0051] It is worth mentioning that Figure 3 and Figure 5 As shown, a limiting annular groove 15 is provided on the tube embryo sliding member 11, and a limiting annular groove 2 9 corresponding to the limiting annular groove 15 is provided on the upper insert 6 and the upper mold base member 2. When preparing the tube embryo, an outwardly convex annular structure is formed by the limiting annular groove 15 on the tube embryo sliding member 11, and matched with the limiting annular groove 2 9 on the screw insert 4, so that the tube embryo sliding member 11 and the screw insert 4 are convenient for buckling and limiting.
[0052] In addition, a groove for clamping the lower punch 14 is provided at the opening of the tube blank slider 11 , so that the lower punch 14 can be matched with the tube blank slider 11 .
[0053] The utility model provides a plastic bottle blow molding mold, and its tube embryo mold opening action is as follows: 1. The mold is opened; 2. The tube embryo slider 11 pushes the tube embryo product upward and pushes out the lower punch 14; 3. The tube embryo slider 11 is opened; 4. The robot takes out the tube embryo product to complete the mold opening action;
[0054] Tube embryo mold closing action: 1. Mold closing, front mold pressing push back plate and tube embryo slider 11, complete the mold closing action;
[0055] Blow molding mold opening action: 1. Put the tube blank into the heating head to heat and soften it; 2. After the tube blank is heated, it follows the chain into the bottle blowing area; 3. The upper mold blank 2 and the lower mold blank 1 are closed and blown; 4. After the blowing is completed, the upper mold blank 2 and the lower mold blank 1 are opened, and the product is moved out with the chain;
[0056] Mould closing action: 1. The tube embryo goes back and forth into the bottle blowing area to complete the cycle action.
[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0058] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.
Claims
1. A plastic bottle blow molding mold, It is characterized in that It includes: Lower mold base (1); An upper mold base (2) adapted to the lower mold base (1), wherein a bottle body cavity (7) for preparing a bottle body is formed between the upper mold base (2) and the lower mold base (1); A screw-on insert (4), the screw-on insert (4) comprising an upper insert (6) engaged with an upper mold base (2), and a lower insert (5) engaged with a lower mold base (1), the upper insert (6) and the upper mold base (2) forming an undercut ring groove (10); A tube blank slider (11) is used to prepare a bottle mouth thread cavity (12) of a bottle body, and an inner cavity of the tube blank slider (11) forms an insert undercut (13) corresponding to an undercut ring groove (10).
2. A plastic bottle blow molding mold according to claim 1, It is characterized in that The upper insert (6) is detachably connected to the upper mold base (2) via a thread, and the lower insert (5) is detachably connected to the lower mold base (1) via a thread.
3. A plastic bottle blow molding mold according to claim 1 or 2, It is characterized in that The upper insert (6) and the lower insert (5) are both provided with a receiving groove (8) matching the bottle mouth thread.
4. A plastic bottle blow molding mold according to claim 1, It is characterized in that The inner wall of the insert undercut (13) is an arc-shaped structure.
5. A plastic bottle blow molding mold according to claim 1, It is characterized in that The upper mold base (2) and the lower mold base (1) are both provided with exhaust holes.
6. A plastic bottle blow molding mold according to claim 1, It is characterized in that A groove for clamping the lower punch (14) is provided at the opening of the tube blank slider (11).
7. A plastic bottle blow molding mold according to claim 6, It is characterized in that The tube embryo slider (11) is a two-section structure, and an inclined surface is arranged on the outer side of the upper end of the tube embryo slider (11).
8. A plastic bottle blow molding mold according to claim 1 or 7, It is characterized in that The tube blank sliding block (11) is provided with a limiting annular groove 1 (15), and the upper insert (6) and the upper mold blank (2) are provided with a limiting annular groove 2 (9) corresponding to the limiting annular groove 1 (15).
9. A plastic bottle blow molding mold according to claim 1, It is characterized in that Support columns (3) are provided at corresponding positions of the upper mold base (2) and the lower mold base (1).
10. A plastic bottle blow molding mold according to claim 1, It is characterized in that The upper mold base (2) and the lower mold base (1) are both provided with cooling channels.