Plastic bottle production injection molding device

Abstract

The utility model relates to the technical field of plastic bottle production, and discloses a plastic bottle production injection molding device which comprises a workbench, a mounting frame, a movable mold and a fixed mold, a hydraulic cylinder is fixed at the top of the mounting frame, a mounting plate is fixed at the extending end of the hydraulic cylinder, an inserting cavity and a first positioning groove are formed in the bottom and the two sides of the mounting plate respectively, and an inserting rod is fixed at the top of the movable mold. Mounting frames are fixed to the two sides of the mounting plate, through holes and limiting grooves are formed in the two sides of the mounting frames correspondingly, pull rods slide in the through holes, pull rings and limiting plates are fixed to the two ends of the pull rods correspondingly, reset springs sleeve the pull rods, and limiting rods penetrate through the limiting grooves. According to the utility model, the pull ring, the reset spring, the limiting plate and the limiting rod are matched, and the limiting rod limits the inserting rod, so that the movable mold can be quickly mounted and dismounted, and the operation complexity and the time consumption are reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle production technology, and in particular to an injection molding device for plastic bottle production. Background Technology

[0002] Plastic bottles are mainly used as single-use plastic packaging containers for liquids or solids such as beverages, food, pickles, honey, dried fruit, edible oil, and agricultural and veterinary drugs. Plastic bottles are characterized by their durability, low cost, high transparency, and use of food-grade materials.

[0003] A search revealed a public disclosure (announcement) number: CN221022078U, which discloses a plastic bottle injection molding device. The device includes a fixed mold, with a switching mechanism fixedly connected inside the fixed mold. The switching mechanism includes a support rod, a connecting plate, and a molding groove. The support rod is fixedly connected inside the fixed mold, and the connecting plate is movably connected to the top of the support rod. A molding groove is fixedly connected to one side of the connecting plate. The switching mechanism facilitates the replacement of the molding groove to meet the needs of injection molding plastic bottles of different sizes. This plastic bottle injection molding device, through its switching mechanism, facilitates the injection molding of plastic bottles of different sizes. The device also includes a heat preservation mechanism for heat preservation and heating of the injection molding tube, achieved through a heating tube and an insulation layer.

[0004] In the aforementioned existing technical solutions, the movable mold is fixed to the top of the load-bearing column. When the movable mold needs to be replaced or adjusted, it has poor flexibility. Each time the mold is replaced, it may need to be disassembled and reassembled, which increases the complexity of the operation and the time consumption.

[0005] Therefore, we propose an injection molding device for plastic bottle production. Utility Model Content

[0006] The present invention aims to solve the technical problems existing in the prior art and provide an injection molding device for producing plastic bottles.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a plastic bottle injection molding device, comprising a workbench, a mounting frame, a movable mold, and a fixed mold. A hydraulic cylinder is fixed to the top of the mounting frame, and a mounting plate is fixed to the extended end of the hydraulic cylinder. An insertion cavity and a positioning groove are respectively opened on the bottom and sides of the mounting plate. An insertion rod is fixed to the top of the movable mold, and a positioning groove is opened on each insertion rod. Mounting frames are fixed to both sides of the mounting plate, and through holes and limiting grooves are respectively opened on both sides of the mounting frames. A pull rod slides in the through hole, and a pull ring and a limiting plate are respectively fixed at both ends of the pull rod. A return spring is sleeved on the pull rod, and a limiting rod passes through the limiting groove.

[0008] Preferably, a sliding groove is provided on the worktable in the horizontal direction, a motor is fixedly connected to one side of the worktable, a two-way lead screw is fixedly connected to the output shaft end of the motor, and two positioning blocks are slidably connected on the two-way lead screw.

[0009] As a preferred embodiment, the limiting groove, the limiting rod, the first positioning groove, and the second positioning groove are all cross-shaped structures and are compatible with each other.

[0010] Preferably, the insertion rod and the insertion cavity correspond to and are compatible with each other.

[0011] Preferably, the end of the limiting rod near the limiting plate is fixedly connected to the limiting plate, and the upper and lower walls of the limiting plate are in contact with the upper and lower walls of the inner cavity of the mounting frame.

[0012] Preferably, the pull ring is located at one end outside the mounting frame, and the return spring is located inside the mounting frame.

[0013] This utility model provides an injection molding device for producing plastic bottles. It has the following beneficial effects:

[0014] 1. This injection molding device for producing plastic bottles uses a pull ring, a return spring, a limiting plate, and a limiting rod to limit the insertion rod, thereby enabling the movable mold to be quickly installed and disassembled, thus reducing the complexity of operation and the time consumption.

[0015] 2. This injection molding device for producing plastic bottles uses a motor, a two-way lead screw, and a positioning block to limit the position of the fixed mold, thereby improving the applicability of the device by limiting the position according to different mold sizes. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2This is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 This is a schematic diagram showing the disassembly of the mounting plate and the movable mold of this utility model;

[0021] Figure 4 This is a schematic diagram showing the details of the case frame structure of this utility model.

[0022] Legend:

[0023] 1. Workbench; 101. Slide groove; 2. Mounting bracket; 201. Hydraulic cylinder; 202. Mounting plate; 203. Insertion cavity; 204. Positioning groove one; 3. Movable mold; 301. Insert rod; 302. Positioning groove two; 4. Mounting frame; 401. Through hole; 402. Pull rod; 403. Pull ring; 404. Return spring; 405. Limiting plate; 406. Limiting groove; 407. Limiting rod; 5. Motor; 501. Two-way lead screw; 502. Positioning block; 6. Fixed mold. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example: An injection molding apparatus for producing plastic bottles, such as Figures 1-4As shown, the device includes a worktable 1, on which an L-shaped mounting bracket 2 is fixedly connected. A horizontally extending groove 101 is provided on the worktable 1. A motor 5 is fixedly connected to one side of the worktable 1 at a position corresponding to the groove 101. The output shaft of the motor 5 passes through the side wall of the groove 101 and is fixedly connected to a bidirectional lead screw 501. Two positioning blocks 502 are slidably connected to the bidirectional lead screw 501. A fixed mold 6 is placed on the worktable 1 at the center of the two positioning blocks 502. The top center of the mounting bracket 2 is fixedly connected to... A hydraulic cylinder 201 is connected, with its extended end penetrating the top of the mounting bracket 2 and fixedly connected to a mounting plate 202. Two insertion cavities 203 are respectively opened at the bottom of the mounting plate 202. Positioning grooves 204 are opened at the center of both sides of the mounting plate 202. A movable mold 3 is provided at the bottom of the mounting plate 202. Insertion rods 301 are fixedly connected to the top of the movable mold 3 at positions corresponding to the insertion cavities 203. Each insertion rod 301 has a second positioning groove 302 that matches the first positioning groove 204. Mounting frames 4 are fixedly connected to both sides of the mounting plate 202. Through holes 401 are provided on the sidewalls of both mounting frames 4 away from the positioning groove 204. Pull rods 402, adapted to the through holes 401, are slidably installed within the inner cavities of the through holes 401. Pull rings 403 are fixedly connected to the outer ends of the pull rods 402. Return springs 404 are sleeved on the pull rods 402 within the inner cavities of the mounting frames 4. Limit plates 40 are fixedly connected to the ends of the pull rods 402 within the inner cavities of the mounting frames 4. 5. The upper and lower walls of the limiting plate 405 are in contact with the upper and lower walls of the inner cavity of the mounting frame 4. Limiting grooves 406 are provided on the side wall of the mounting frame 4 away from the through hole 401 and at the position corresponding to the positioning groove 204. Limiting rods 407 pass through the inner cavity of each limiting groove 406. The end of the limiting rod 407 near the limiting plate 405 is fixedly connected to the limiting plate 405. The limiting grooves 406, limiting rods 407, positioning groove 204 and positioning groove 302 are all cross-shaped structures and are mutually compatible.

[0026] The working principle of this utility model:

[0027] In use, the injection molding material is placed into the fixed mold 6. The motor 5 is started to drive the two positioning blocks 502 on the bidirectional lead screw 501 to move closer to each other, limiting the position of the fixed mold 6. The hydraulic cylinder 201 is started to drive the movable mold 3 set at the bottom of the mounting plate 202 to move closer to the fixed mold 6 for injection molding. When it is necessary to replace the movable mold 3, the two pull rings 403 are moved away from each other, and the limiting rod 407 is released from the inner cavity of the positioning groove 2 302 and the positioning groove 1 204, thereby releasing the limitation on the insertion rod 301, which facilitates the replacement of the movable mold 3.

[0028] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic bottle injection molding apparatus, comprising a worktable (1), a mounting frame (2), a movable mold (3), and a fixed mold (6), characterized in that: The mounting frame (2) is fixed with a hydraulic cylinder (201) at the top. The extended end of the hydraulic cylinder (201) is fixed with a mounting plate (202). The bottom and sides of the mounting plate (202) are respectively provided with an insertion cavity (203) and a positioning groove (204). The top of the movable mold (3) is fixed with an insertion rod (301). The insertion rod (301) is provided with a positioning groove (302). The mounting frame (4) is fixed with a mounting frame (4) on both sides. The mounting frame (4) is provided with a through hole (401) and a limiting groove (406) on both sides. A pull rod (402) slides in the through hole (401). A pull ring (403) and a limiting plate (405) are fixed at both ends of the pull rod (402). A reset spring (404) is sleeved on the pull rod (402). A limiting rod (407) passes through the limiting groove (406).

2. The injection molding apparatus for producing plastic bottles according to claim 1, characterized in that: The workbench (1) has a horizontal groove (101) and a motor (5) is fixedly connected to one side of the workbench (1). A two-way lead screw (501) is fixedly connected to the output shaft end of the motor (5). Two positioning blocks (502) are slidably connected to the two-way lead screw (501).

3. The injection molding apparatus for producing plastic bottles according to claim 1, characterized in that: The limiting groove (406), limiting rod (407), positioning groove one (204) and positioning groove two (302) are all cross-shaped structures and are compatible with each other.

4. The injection molding apparatus for producing plastic bottles according to claim 1, characterized in that: The insertion rod (301) corresponds to and is compatible with the insertion cavity (203).

5. The injection molding apparatus for producing plastic bottles according to claim 1, characterized in that: The end of the limiting rod (407) near the limiting plate (405) is fixedly connected to the limiting plate (405), and the upper and lower walls of the limiting plate (405) are in contact with the upper and lower walls of the inner cavity of the mounting frame (4).

6. The injection molding apparatus for producing plastic bottles according to claim 1, characterized in that: The pull ring (403) is located at one end outside the mounting frame (4), and the reset spring (404) is located in the inner cavity of the mounting frame (4).

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