Plastic barrel blow molding mechanism

Abstract

The utility model relates to the technical field of plastic bucket production equipment, in particular to a plastic bucket blow molding mechanism. According to the plastic barrel blow molding mechanism provided by the embodiment of the invention, the H-shaped opening mold is arranged at the discharging end of the extruder body, so that when molds with different sizes need to be replaced, the tool rest can be controlled to move downwards so as to enable the cutting knife to cut off molten plastic at the H-shaped opening mold; and the circular discharge hole of the H-shaped mouth mold is sealed by the knife rest. And meanwhile, the cut-off molten plastic can fall into a storage groove of the receiving box, so that follow-up repeated use is facilitated. By adopting the structural design, the effects of cutting molten plastic and blocking the mouth mold can be achieved through the cutting knife and the knife rest, so that the problem of mouth mold blocking caused by temperature difference between the molten plastic in the extruder and the external environment can be effectively prevented.

Description

Technical Field

[0001] This application relates to the field of plastic bucket production equipment technology, and more specifically, to a plastic bucket blow molding mechanism. Background Technology

[0002] Blow molding is a method that uses fluid pressure to inflate a hot preform or sheet enclosed in a mold into a hollow product. It is one of the molding methods for thermoplastics. Compressed air is used to inflate molten plastic preforms into the desired shape, and after cooling, various hollow products such as plastic bottles, buckets, and spheres are obtained.

[0003] In related technologies, extrusion blow molding is commonly used to produce plastic buckets. Extrusion blow molding involves extruding molten plastic preforms through an extruder, then placing them while still hot into a mold, and finally using compressed air to inflate and shape the preform. In practical applications, different sizes of plastic buckets need to be produced according to usage requirements, which necessitates changing molds of different sizes.

[0004] However, when changing to different sized dies, the extruder die comes into direct contact with the outside environment, which causes a temperature difference between the die and the environment. This can lead to molten plastic particles condensing on the die and clogging it, thus affecting subsequent use. Utility Model Content

[0005] In view of this, this application provides a potato virus-free seedling culture medium to solve the technical problem in the related art that the small volume of the culture medium makes it difficult to fully mix the various different nutrient substrates inside.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A plastic bucket blow molding mechanism, comprising:

[0008] Extruder body;

[0009] H-type die, the H-type die includes an H-type outer shell and a circular discharge port opened along its thickness direction, the wall surface of the H-type outer shell away from the extruder body is provided with two T-shaped grooves, the T-shaped grooves extend in the vertical direction;

[0010] A cutting blade is mounted on a blade holder. One wall of the blade holder is provided with a T-shaped foot that slides in conjunction with the T-slot. The blade holder is slidably mounted on the H-shaped outer shell and is used to cover the circular discharge port.

[0011] The receiving box is slidably connected to the H-shaped die via the T-slot. The upper surface of the receiving box is provided with a sheath groove and a material storage groove. The sheath groove is located directly below the cutting blade, and the material storage groove is located on the side of the sheath groove away from the H-shaped die.

[0012] In some possible implementations, the wall of the H-shaped shell is also provided with a rectangular rubber pad, which is located at the circular discharge port.

[0013] In some possible implementations, the tool holder has a first chamfered surface formed near the edge of the rectangular rubber pad.

[0014] In some possible implementations, the rectangular rubber pad has a second chamfered surface formed near the edge of the first chamfered surface, and the second chamfered surface is parallel to the first chamfered surface.

[0015] In some possible implementations, both the blade holder and the cutting blade are equipped with electric heating wires.

[0016] In some possible implementations, the storage trough is located to the side of the cutting blade in the vertical direction.

[0017] The plastic bucket blow molding mechanism provided in this application embodiment has at least the following beneficial effects:

[0018] In the plastic bucket blow molding mechanism provided in this application embodiment, an H-shaped die is provided at the discharge end of the extruder body. When it is necessary to change to a different size die, the cutter holder can be controlled to move downward so that the cutting blade can cut the molten plastic at the H-shaped die and close the circular discharge port of the H-shaped die. At the same time, the cut molten plastic will fall into the storage tank of the receiving box for subsequent reuse. With the above structural design, the cutting blade and the cutter holder can cut the molten plastic and block the die, thereby effectively preventing the molten plastic inside the extruder from having a temperature difference with the external environment, which would lead to the problem of die blockage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the plastic bucket blow molding mechanism provided in the embodiments of this application;

[0021] Figure 2 An exploded view of the plastic bucket blow molding mechanism provided in the embodiments of this application;

[0022] Figure 3 A schematic diagram of the H-shaped die structure of a plastic bucket blow molding mechanism provided in another embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the knife holder structure of a plastic bucket blow molding mechanism provided in another embodiment of this application.

[0024] In the picture:

[0025] 100. Extruder body; 200. H-type die; 210. H-type outer shell; 220. Circular discharge port; 230. T-slot; 300. Cutting blade; 400. Blade holder; 410. T-shaped foot; 420. First chamfered surface; 500. Receiving box; 510. Blade sheath groove; 520. Material storage tank; 600. Rectangular rubber pad; 610. Second chamfered surface. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-4 As shown, the plastic bucket blow molding mechanism provided in this application embodiment includes an extruder body 100, an H-shaped die 200, a cutter 300, and a receiving box 500. The extruder body 100 is provided with an H-shaped die 200 at its discharge end. The H-shaped die 200 consists of an H-shaped outer shell 210 and a circular discharge port 220 opened along the thickness direction of the H-shaped outer shell 210. The circular discharge port 220 is located at the center of the H-shaped outer shell 210 and is connected to the discharge end of the extruder body 100. Therefore, the extruder body 100 can extrude molten plastic outward through the H-shaped die 200.

[0028] One surface of the H-shaped outer shell 210 is fixedly connected to the discharge end of the extruder body 100. The other surface of the H-shaped outer shell 210 has two T-shaped grooves 230 arranged vertically, and the cross-section of the T-shaped grooves 230 in the horizontal direction is T-shaped. The overall length of the T-shaped grooves 230 is less than the length of the H-shaped outer shell 210, and the T-shaped grooves 230 are connected to the upper surface of the H-shaped outer shell 210.

[0029] In this embodiment, the cutting blade 300 is a device used to cut the molten plastic at the discharge end of the extruder body 100. The cutting blade 300 is mounted on the blade holder 400 and slides on the T-slot 230 of the H-shaped die 200 via the blade holder 400. Specifically, the surface of the blade holder 400 that contacts the H-shaped outer shell 210 is provided with a T-shaped foot 410, allowing the blade holder 400 to move vertically via the T-shaped foot 410. When the blade holder 400 moves downward, it can block the circular discharge port 220 of the H-shaped die 200, thereby effectively preventing the problem of molten plastic clogging the discharge port due to excessive temperature difference. Preferably, both the blade holder 400 and the cutting blade 300 are equipped with electric heating wires, which can further prevent temperature loss inside the extruder body 100.

[0030] Continue as Figures 1-2 As shown, the receiving box 500 is slidably mounted on the surface of the H-shaped outer shell 210 via the T-slot 230, and is located below the cutting blade 300 and the blade holder 400. The upper surface of the receiving box 500 is provided with a sheath slot 510 and a storage tank 520, with the sheath slot 510 positioned directly below the cutting blade 300. When the cutting blade 300 moves downwards, it can be inserted into the sheath slot 510 for protection. The storage tank 520 is located to the side of the sheath slot 510 away from the H-shaped die 200. That is, the storage tank 520 is located to the side of the cutting blade 300 in the vertical direction. After the cutting blade 300 cuts the molten plastic, it falls into the storage tank 520 for collection.

[0031] In the plastic bucket blow molding mechanism provided in this application embodiment, an H-shaped die 200 is provided at the discharge end of the extruder body 100. When it is necessary to change to a different size die, the cutter holder 400 can be controlled to move downward so that the cutting blade 300 can cut the molten plastic at the H-shaped die 200, and the circular discharge port 220 of the H-shaped die 200 is closed by the cutter holder 400. At the same time, the cut molten plastic will fall into the storage tank 520 of the receiving box 500 for subsequent reuse. With the above structural design, the cutting blade 300 and the cutter holder 400 can cut the molten plastic and block the die, thereby effectively preventing the molten plastic inside the extruder from having a temperature difference with the external environment, which would lead to the problem of die blockage.

[0032] In some embodiments, such as Figure 3As shown, a rectangular rubber pad 600 is also provided on the wall of the H-shaped outer shell 210. The rectangular rubber pad 600 is located at the circular discharge port 220 of the H-shaped die 200. The rectangular rubber pad 600 has a certain thickness, which can make elastic contact with the cutter holder 400, thereby achieving the function of sealing the circular discharge port 220, which can reduce the temperature loss inside the extruder.

[0033] Preferably, such as Figure 3 and Figure 4 As shown, a first chamfered surface 420 is formed on the edge of the tool holder 400 near the rectangular rubber pad 600, and a second chamfered surface 610 is formed on the edge of the rectangular rubber pad 600 near the first chamfered surface 420. The second chamfered surface 610 and the first chamfered surface 420 are parallel to each other. This further improves the structural compatibility between the tool holder 400 and the rectangular rubber pad 600, allowing the tool holder 400 to move more smoothly on the surface of the H-shaped die 200.

[0034] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0035] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0036] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0037] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0038] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0039] As used herein, the term "substrate" refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned or may remain unpatterned. Furthermore, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafers).

[0040] The term "layer" as used herein can refer to a portion of material comprising a region of thickness. A layer may extend over the entire underlying or overlying structure, or may have a extent smaller than that of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure, with a thickness less than that of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure, or between any pairs of lateral planes at the top and bottom surfaces. A layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, and may include one or more layers, and / or may have one or more layers located on, above, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductor and contact layers (forming contacts, interconnects, and / or vias therein) and one or more dielectric layers.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A blow molding mechanism for plastic buckets, characterized in that, include: Extruder body (100); H-type die (200), the H-type die (200) includes an H-type outer shell (210) and a circular discharge port (220) opened along its thickness direction. The wall surface of the H-type outer shell (210) away from the extruder body (100) is provided with two T-shaped grooves (230), the T-shaped grooves (230) extending in the vertical direction. A cutting blade (300) is mounted on a blade holder (400). One wall of the blade holder (400) is provided with a T-shaped foot (410) that slides in cooperation with the T-slot (230). The blade holder (400) is slidably mounted on the H-shaped outer shell (210). The blade holder (400) is used to cover the circular discharge port (220). A receiving box (500) is slidably connected to the H-shaped die (200) via the T-slot (230). The upper surface of the receiving box (500) is provided with a sheath groove (510) and a storage groove (520). The sheath groove (510) is located directly below the cutting blade (300), and the storage groove (520) is located on the side of the sheath groove (510) away from the H-shaped die (200).

2. The plastic bucket blow molding mechanism according to claim 1, characterized in that: The wall surface of the H-shaped outer shell (210) is also provided with a rectangular rubber pad (600), which is located at the circular discharge port (220).

3. The plastic bucket blow molding mechanism according to claim 2, characterized in that: The tool holder (400) has a first chamfered surface (420) formed near the edge of the rectangular rubber pad (600).

4. The plastic bucket blow molding mechanism according to claim 3, characterized in that: The rectangular rubber pad (600) has a second chamfered surface (610) formed at the edge near the first chamfered surface (420), and the second chamfered surface (610) is parallel to the first chamfered surface (420).

5. The plastic bucket blow molding mechanism according to claim 1, characterized in that: Both the blade holder (400) and the cutting blade (300) are equipped with electric heating wires.

6. The plastic bucket blow molding mechanism according to claim 1, characterized in that: The storage tank (520) is located on the side of the cutting blade (300) in the vertical direction.

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