Mouth mold opposite insertion structure and bottle preform mold

Abstract

The utility model provides a neck mould butt-inserting structure and a bottle blank mould, which comprise a first half neck mould, a second half neck mould, a third half neck mould, a fourth half neck mould, a fifth half neck mould and a sixth half neck mould, the second half-mouth mold is provided with a second connecting surface, a boss is arranged on the second connecting surface, and the shape of the boss is matched with that of the groove; and the first half mouth mold is connected with the second half mouth mold through the first connecting surface and the second connecting surface. The problems that in the prior art, due to the fact that overflowed materials overflow to the position outside an air groove, normal operation of a mold can be affected, and melt materials can be wasted are solved.

Description

Technical Field

[0001] The utility model relates to the field of bottle preform molds, and more specifically to a mouth mold inserting structure and a bottle preform mold. Background Art

[0002] Most of the plastic bottles on the market are made by bottle blowing machines. During the preparation process, the preform needs to be formed first, and then the preform is blown to form it. The forming of the preform mainly depends on the preform mold. The preform mold includes a cavity plate and a core plate. During the injection of the melt, pressure is applied to the cavity plate and the core plate, and the mold cavity is filled with the melt to obtain a molded embryo. The mold will be provided with an air groove to discharge the gas generated in the cavity during the molding process.

[0003] However, dust is very easy to accumulate in the air groove, so when the machine reaches a certain cycle, the mold needs to create a gap so that during injection molding, the melt enters the gap to produce overflow and take away the dust in the air groove. The shape of the flash generated by overflow is uncontrollable, and it cannot be guaranteed that the overflow will only accumulate in the air groove. If the overflow overflows to a position outside the air groove, it will not only affect the normal operation of the mold, but also cause waste of molten material.

[0004] Therefore, the prior art has defects and shortcomings and needs further improvement and development. Utility Model Content

[0005] The technical problem to be solved by the utility model is that, in view of the above-mentioned defects in the prior art, a die-mold insertion structure and a preform mold are provided, aiming to solve the problem in the prior art that overflow material overflows to a position outside the air groove, which not only affects the normal operation of the mold, but also causes waste of molten material.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] On the one hand, the present application provides a die-to-die plug-in structure, the die-to-die plug-in structure comprising:

[0008] A first half mold, the first half mold having a first joint surface, the first joint surface having a venting groove and a groove;

[0009] A second half-die, the second half-die having a second joint surface, a boss being arranged on the second joint surface, the shape of the boss matching the groove;

[0010] The first half die and the second half die are connected via a first joint surface and a second joint surface.

[0011] Optionally, the sinking height of the ventilation groove is smaller than the sinking height of the groove.

[0012] Optionally, the first half die further comprises a molding surface, and the contour of the venting groove matches the shape of the molding surface.

[0013] Optionally, a first exhaust port is provided on the boss, the first exhaust port is communicated with the ventilation groove, and is used to exhaust the air in the ventilation groove to the outside of the mold.

[0014] Optionally, a second exhaust port is also provided at the intersection of the top of the second half die and the molding surface.

[0015] Optionally, the die insertion structure further includes a fixing plate, and the fixing plate includes a first fixing plate and a second fixing plate;

[0016] The first half die is fixedly connected to the first fixed plate, and the second half die is fixedly connected to the second fixed plate.

[0017] Optionally, a third exhaust port is provided on one side of the second fixing plate parallel to the second joint surface.

[0018] Optionally, a plurality of countersunk holes are provided on the fixing plate, and the plurality of countersunk holes are used to penetrate screws and fix the position of the fixing plate.

[0019] In a second aspect, the present application provides a preform mold, comprising:

[0020] Core board;

[0021] A separation plate, on which a die inserting structure and a support member are arranged;

[0022] A cavity plate, wherein a first driving member is disposed on the cavity plate, and a slider is disposed on the first driving member;

[0023] The first driving member drives the slider so that the slider abuts against the supporting member and is used to generate gaps between the mold core plate, the separation plate and the cavity plate.

[0024] Optionally, a second driving member and a fixing bar are provided on the separation plate, the fixing bar is connected to the second driving member, and the fixing bar includes a first fixing bar and a second fixing bar;

[0025] The first half of the die is fixedly arranged on the first fixing bar, and the second half of the die is fixedly arranged on the second fixing bar.

[0026] The beneficial effects of the die-to-die inserting structure and the preform mold provided by the utility model are at least that: when the machine reaches a certain cycle, a gap is generated in the mold, so that during injection molding, the melt enters the venting groove to generate overflow, and the overflow forms flash, which takes away the dust in the venting groove. The mold does not need to be stopped or manually operated, and the dust removal work can be automatically completed. The dust in the air groove is taken away by the overflow flash, which not only improves production efficiency, but also saves manpower and ensures product quality. When the venting groove needs to be dusted, the boss and the groove are matched, so that the overflow in the air groove will not exceed the splicing range of the boss and the groove, saving the material of the melt. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a die pairing structure according to an embodiment of the present application;

[0028] Figure 2 2 is a schematic diagram of the structure of the first half die in the embodiment of the present application;

[0029] Figure 3 is a structural schematic diagram of the first half die from another perspective in the embodiment of the present application;

[0030] Figure 4 2 is a schematic diagram of the structure of the first half die in the embodiment of the present application;

[0031] Figure 5 is a structural schematic diagram of the first half die from another perspective in the embodiment of the present application;

[0032] Figure 6 is an exploded view of a preform mold of an embodiment of the present application;

[0033] Figure 7 is a schematic diagram of the structure of the separation plate in the embodiment of the present application;

[0034] Figure 8 yes Figure 7 A magnified view of part A;

[0035] Fig. 9 It is a schematic diagram of the structure of the cavity plate in the embodiment of the present application.

[0036] Among them, the reference numerals in the figure are:

[0037] 10. Core plate; 20. Separation plate; 210. Support member; 220. Fixing strip; 30. Cavity plate; 310. First driving member; 40. First half mold; 410. First joint; 420. Vent groove; 430. Groove; 50. Second half mold; 510. Second joint; 520. Boss; 530. First exhaust port; 540. Second exhaust port; 550. Third exhaust port; 60. Forming surface; 70. Fixing plate; 710. First fixing plate; 720. Second fixing plate; 730. Countersunk hole. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model clearer and more specific, the utility model is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model and are used to limit the utility model.

[0039] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and should not be construed as limitations on the technical solution. The terms "first" and "second" are only used for the convenience of description.

[0040] Embodiment 1

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, this embodiment provides a die-to-die plug-in structure, which includes a first half die 40 and a second half die 50. In this embodiment, the first half die 40 and the second half die 50 can be set to a variety of shapes. In order to meet the cylindrical shape of the formed preform product, the first half die 40 and the second half die 50 are both set to a semi-circular ring shape. The first half die 40 has a first joint surface 410, and the first joint surface 410 has a vent groove 420 and a groove 430. The provision of the vent groove 420 can help release gas during the manufacturing process to ensure that the preform is formed smoothly. The second half die 50 has a second joint surface 510, and the second joint surface 510 is provided with a boss 520. The shape of the boss 520 matches the groove 430. The first half die 40 and the second half die 50 are connected through the first joint surface 410 and the second joint surface 510. During the normal operation of the mold, dust is easily accumulated in the vent groove 420. Therefore, when the machine reaches a certain cycle, the mold needs to generate a gap so that when the injection molding is performed, the melt enters the gap to generate overflow, and the overflow forms a flash edge, which takes away the dust in the air groove. When the first half die 40 and the second half die 50 are connected through the first interface 410 and the second interface 510, the matching of the groove 430 and the boss 520 enables the two half dies to be accurately aligned, ensuring the stable connection of the die, so that the complete circular die can be accurately spliced ​​when making the bottle blank to form a complete bottle opening. When the vent groove 420 needs to be dusted, the boss 520 matches the groove 430, so that the overflow in the air groove will not exceed the splicing range of the boss 520 and the groove 430, saving the material of the melt. Such a die insert structure design can improve the efficiency and accuracy of making bottle blanks, and finally obtain a cylindrical bottle opening that meets the requirements.

[0042] The working principle of this embodiment is as follows: when making a preform, it is necessary to pour melt into the molding cavity of the mold. When the first half mold 40 and the second half mold 50 are connected through the first interface 410 and the second interface 510, the matching of the groove 430 and the boss 520 enables the two half molds to be accurately aligned, ensuring the stable connection of the molds, so that the complete circular mold can be accurately spliced ​​when making the preform to form a complete bottle opening. At the same time, in order to meet the quality of the preform, it is necessary to set the ventilation groove 420 to discharge the air in the molding cavity. Dust is very likely to exist in the ventilation groove 420. Therefore, when the machine reaches a certain cycle, a gap is generated in the mold so that during injection molding, the melt enters the gap to generate overflow and take away the dust in the air groove. Through the mutual cooperation of the groove 430 and the boss 520, the overflow will only overflow within the accommodating range of the air groove and will not exceed the splicing of the groove 430 and the boss 520, thereby saving materials.

[0043] The beneficial effect of the die-to-die structure provided in this embodiment is at least that: when the machine reaches a certain cycle, a gap is generated in the mold, so that during injection molding, the melt enters the vent groove 420 to generate overflow, and the overflow forms flash, which takes away the dust in the vent groove 420. The mold does not need to be stopped or manually operated, and the dust removal work can be automatically completed. The dust in the air groove is taken away by the overflow flash, which not only improves production efficiency, but also saves manpower and ensures product quality. When the vent groove 420 needs to be dusted, the boss 520 matches the groove 430, so that the overflow in the air groove will not exceed the splicing range of the boss 520 and the groove 430, saving the material of the melt.

[0044] like Figure 2 as well as Figure 4 As shown, the sinking height of the vent groove 420 in this embodiment is less than the sinking height of the groove 430. During the normal operation of the mold, the area of ​​the vent groove 420 is very small, so it can only discharge the air in the cavity out of the mold, and the melt is a plastic melt, the molecules are large, and there is tension, and it will not penetrate into the vent groove 420. When the mold is in the dust removal state, a gap is generated between the first half mold 40 and the second half mold 50, so that the plastic melt enters the vent groove 420, but the gap between the first half mold 40 and the second half mold 50 will not exceed the interlocking distance between the boss 520 and the groove 430. Therefore, even in the dust removal state, the melt can only enter the vent groove 420, and will not exceed the range of the vent groove 420. Setting the sinking height of the vent groove 420 to be less than the sinking height of the groove 430 is more convenient to control the gap between the first half mold 40 and the second half mold 50, so that the plastic melt will not easily seep out.

[0045] like Figure 3 as well as Figure 5As shown, the first half die 40 in this embodiment also has a molding surface 60, and the contour of the vent groove 420 matches the shape of the molding surface 60. By matching the contour of the vent groove 420 with the shape of the molding surface 60, the width of the vent groove 420 can be kept uniform on the entire molding surface 60. This design can provide a better exhaust channel, which helps to discharge the gas in the cavity during the molding process and avoid bubbles or other defects. When performing intelligent dust removal, the flash (overflow) will not overflow the mold by controlling the gap between the first half die 40 and the second half die 50. At the same time, since the contour of the vent groove 420 is consistent with the shape of the molding surface 60, the spacing of the vent grooves is also relatively stable, which is conducive to achieving a better exhaust effect. The presence of the vent groove allows the melt to flow more smoothly during the dust removal process, thereby improving the dust removal effect.

[0046] like Figure 4 as well as Figure 5 As shown, the boss 520 in this embodiment is provided with a first exhaust port 530, which is connected to the vent groove 420 and is used to discharge the air in the vent groove out of the die. The vent groove 420 is a cavity located on the first half of the die 40 of the die, and is used to remove the air in the vent groove. When the mold is injection molded, the melt will enter the vent groove 420, and the air will be squeezed out. Through the connection between the first exhaust port 530 and the vent groove 420, a special channel is provided so that the air in the vent groove can be smoothly discharged from the outside of the mold. By being connected to the vent groove 420, the first exhaust port 530 provides a more direct channel so that the air in the vent groove can be quickly discharged. This can reduce or avoid the generation of defects such as bubbles or pores during the bottle blank molding process. Through this design, the air can be effectively squeezed out of the mold, ensuring that the melt fills the cavity while reducing the residual air.

[0047] like Figure 3 as well as Figure 5 As shown, a second exhaust port 540 is also provided at the intersection of the top of the second half of the die 50 and the molding surface 60 in this embodiment. The second exhaust port 540 provides a special channel so that air can be discharged smoothly from the outside of the mold. During the injection molding process of the mold, the melt will fill the cavity and squeeze out the air at the same time. The second exhaust port 540 is located at the intersection of the top of the second half of the die 50 and the molding surface 60, which is usually the top of the preform or close to the top. By setting the second exhaust port 540, the exhaust effect of the die can be further improved. When the melt fills the cavity, the air will be squeezed out. The second exhaust port 540 provides an additional channel so that the air can be discharged from the mold more smoothly, avoiding defects such as bubbles or pores during the molding process. Such a design can improve the molding quality and ensure that the final product meets the requirements.

[0048] like Figure 1 As shown, the die pairing structure in this embodiment also includes a fixing plate 70, and the fixing plate 70 includes a first fixing plate 710 and a second fixing plate 720. The first half die 40 is fixedly connected to the first fixing plate 710, and the second half die 50 is fixedly connected to the second fixing plate 720. By fixing the first half die 40 to the first fixing plate 710 and the second half die 50 to the second fixing plate 720, the stability and accuracy of the mold can be ensured. The fixing plate 70 plays a role in firmly connecting the various parts of the mold together, preventing the first half die 40 and the second half die 50 from loosening or displacement during use, which helps to maintain the accuracy and stability of the mold. The existence of the fixing plate 70 makes the maintenance and adjustment of the mold more convenient. If the mold needs to be repaired or adjusted, the corresponding part of the mold can be easily operated by removing the fixing plate 70. Such a design makes the maintenance of the mold more flexible and efficient.

[0049] like Figure 4 As shown, a third exhaust port 550 is provided on one side of the second fixed plate 720 in this embodiment that is parallel to the second interface 510. By providing the third exhaust port 550 at the position where the second fixed plate 720 is connected to the first air inlet, the smoothness of the exhaust can be ensured. The boss 520 and the second fixed plate 720 have a stepped structure, which may affect the exhaust effect of the first exhaust port 530. By providing the third exhaust port 550 at the connecting position, an additional channel can be provided to ensure smooth exhaust of the first air inlet and avoid defects such as bubbles or pores during the molding process. By providing the third exhaust port 550, the molding quality can be further improved. During the injection molding process, the smoothness of the exhaust is crucial to the product quality. By optimizing the design of the exhaust channel, the generation of defects such as bubbles and pores can be reduced or avoided, ensuring the quality requirements of the final product.

[0050] like Figure 1 As shown, the fixing plate 70 in this embodiment is provided with a plurality of countersunk holes 730, and the plurality of countersunk holes 730 are used to insert screws and fix the position of the fixing plate 70. By fixing the fixing plate 70 in the mold with screws, the stability of the mold can be increased. The screws can effectively fix the position of the fixing plate 70 to prevent loosening or displacement during the use of the mold. This helps to maintain the accuracy and stability of the mold and improve the molding quality. The countersunk holes 730 on the fixing plate 70 can be used to insert screws, making the maintenance and adjustment of the mold more convenient. If the mold needs to be repaired or adjusted, the corresponding part of the mold can be conveniently operated by removing the screws. Such a design makes the maintenance of the mold more flexible and efficient.

[0051] Embodiment 2

[0052] like Figure 6 , Figure 7 as well as Figure 8 As shown, the present application proposes a preform mold, including a core plate 10, a separation plate 20 and a cavity plate 30, the separation plate 20 is provided with a die insertion structure and a support member 210, the cavity plate 30 is provided with a first driving member 310, the first driving member 310 is provided with a slider, the first driving member 310 drives the slider so that the slider abuts against the support member 210, and is used to generate a gap between the mold core plate 10, the separation plate 20 and the cavity plate 30. After the mold runs a certain number of times, dust will accumulate in the air grooves in the mold. By starting the dust removal device, the driver pushes the slider to the specified position, so that the slider abuts against the support member 210, thereby generating a gap between the cavity plate 30, the separation plate 20 and the core plate 10, so that a gap is directly generated between the first half mold 40 and the second half mold 50. If the mold is not closed tightly, overflow will occur during operation. The plastic melt overflows to the air groove and fills the air groove, which can take away the dust in the air groove. When the mold is opened again, the driver drives the slider back to the initial position, and the mold continues to operate normally. Through this process, the dust in the air groove can be effectively cleaned to avoid the influence of dust on the quality of the preform. The mold does not need to be shut down or manually operated, and the dust removal work can be automatically completed. The dust in the air groove is taken away by the overflow flash, which not only improves production efficiency, but also saves manpower and ensures product quality.

[0053] like Fig. 9 As shown, the separation plate 20 in this embodiment is provided with a second driving member and a fixed bar 220, the fixed bar 220 is connected to the second driving member, the fixed bar 220 includes a first fixed bar 220 and a second fixed bar 220, the first half die 40 is fixedly arranged on the first fixed bar 220, and the second half die 50 is fixedly arranged on the second fixed bar 220. By driving the second driving member, the force is transmitted to the fixed bar 220, and then the first fixed bar 220 and the second fixed bar 220 are driven to move in the specified direction respectively. Since the first half die 40 is fixed on the first fixed bar 220 and the second half die 50 is fixed on the second fixed bar 220, when the fixed bar 220 moves, the die will also move accordingly, thereby realizing the separation of the die. By driving the movement of the fixed bar 220, a certain distance is generated between the first half die 40 and the second half die 50, so as to facilitate the demoulding of the mold. In the process of demoulding the mold, the separation of the die is a necessary step, which can ensure that the finished product is smoothly separated from the mold to avoid damage or jamming. By driving the first fixing bar 220 and the second fixing bar 220 to move, the separation degree of the die can be controlled to meet different demoulding requirements.

[0054] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A die inserting structure, characterized in that: The die inserting structure comprises: A first half-mold, wherein the first half-mold has a first joint surface, and the first joint surface has a venting groove and a groove; A second half-die, wherein the second half-die has a second joint surface, a boss is arranged on the second joint surface, and a shape of the boss matches the groove; The first half die and the second half die are connected to each other through the first connecting surface and the second connecting surface.

2. The die inserting structure according to claim 1, characterized in that: The sinking height of the ventilation groove is smaller than the sinking height of the groove.

3. The die inserting structure according to claim 1, characterized in that: The first half die also has a molding surface, and the contour of the venting groove matches the shape of the molding surface.

4. The die inserting structure according to claim 1, characterized in that: The boss is provided with a first exhaust port, which is communicated with the ventilation groove and is used to exhaust the air in the ventilation groove out of the die.

5. The die inserting structure according to claim 3, characterized in that: A second exhaust port is also provided at the intersection of the top of the second half die and the molding surface.

6. The die inserting structure according to claim 1, characterized in that: The die insertion structure further includes a fixing plate, and the fixing plate includes a first fixing plate and a second fixing plate; The first half die is fixedly connected to the first fixed plate, and the second half die is fixedly connected to the second fixed plate.

7. The die inserting structure according to claim 6, characterized in that: A third exhaust port is disposed on one side of the second fixing plate parallel to the second joint surface.

8. The die inserting structure according to claim 6, characterized in that: The fixing plate is provided with a plurality of countersunk holes, and the plurality of countersunk holes are used to penetrate screws and fix the position of the fixing plate.

9. A preform mold, characterized in that: The preform mold comprises the die inserting structure as claimed in any one of claims 1 to 8, wherein the preform mold comprises: Core board; A separation plate, on which the die insertion structure and the support member are arranged; A cavity plate, wherein a first driving member is disposed on the cavity plate, and a slider is disposed on the first driving member; The first driving member drives the slider so that the slider abuts against the supporting member, and is used to generate gaps between the mold core plate, the separation plate and the cavity plate.

10. The preform mold according to claim 9, characterized in that: The separation plate is provided with a second driving member and a fixing bar, the fixing bar is connected to the second driving member, and the fixing bar includes a first fixing bar and a second fixing bar; The first half die is fixedly arranged on the first fixing bar, and the second half die is fixedly arranged on the second fixing bar.

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