A multi-layer co-extruded film bubble stabilizing support device

Abstract

The utility model relates to the technical field of blow molding, specifically relates to a kind of multilayer co-extrusion film bubble stable supporting device, including base plate, tooth ring is sleeved on the outer wall of base plate, and the tooth ring is meshed with driving tooth and is connected, still including the lap joint block of annular equidistant fixed installation in the tooth ring upside position, mobile plate is movably connected on the lap joint block, and multiple air outlets are evenly provided on the mobile plate. Through the multiple mobile plates of the annular structure distribution set, and multiple air outlets being provided on the mobile plate, the effective support of membrane bubble can be realized using airflow, to avoid the damage of the outer wall of membrane bubble caused by rigid contact.

Description

Technical Field

[0001] This utility model relates to the field of blow molding, and in particular to a multilayer co-extruded film bubble stabilization support device. Background Technology

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic preform obtained by extrusion or injection molding of thermoplastic resin is heated to a softened state, placed in a split mold, and compressed air is immediately introduced into the preform after the mold is closed, causing the plastic preform to inflate and adhere tightly to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] During the blow molding process, a bubble is formed. It needs to be fixed to prevent it from swinging freely and causing damage to the outer wall of the bubble, which would affect the blow molding quality. In actual use, the existing blow molding mechanism usually uses a limiting plate to achieve direct contact with the bubble for stabilization. However, this method is prone to damage to the outer wall of the bubble. Therefore, we designed a multi-layer co-extruded bubble stabilization support device. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a multi-layer co-extruded bubble stabilization support device, which can effectively solve the problem that in actual use of existing blow molding mechanisms, the corresponding bubble stabilization mechanism usually uses a limiting plate to achieve direct contact with the bubble to achieve stabilization, but this method is prone to causing damage to the outer wall of the bubble.

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

[0006] A multilayer co-extruded film foam stabilization support device includes a chassis, a toothed ring sleeved on the outer wall of the chassis, the toothed ring being meshed with a drive tooth, and an overlapping block fixedly installed in a ring at equal intervals on the upper side of the toothed ring. A movable plate is movably connected to the overlapping block, and multiple air outlet holes are evenly opened on the movable plate.

[0007] Preferably, an elastic membrane is fixedly installed in the middle of the top surface of the chassis, and a cavity is formed between the elastic membrane and the middle of the chassis. Multiple air intake holes are evenly opened through the upper side of the cavity, and the cavity is connected to the air intake end of an external air pump through a connecting pipe.

[0008] Preferably, it also includes a limiting groove formed on the overlapping block, a sliding block is fixedly installed at the lower end of the moving plate, the sliding block and the limiting groove are slidably engaged, and the upper end of the moving plate can seal the upper opening of the limiting groove. The cavity is connected to the output end of an external air pump through a connecting pipe.

[0009] Preferably, it further includes a chamber formed within the movable plate, the chamber being connected to the output end of an external pump body via a hose, and the inner wall of the chamber being provided with a rubber layer.

[0010] Preferably, the inner wall of the movable plate has an arc-shaped structure, and the air intake hole is located between the middle of two adjacent movable plates.

[0011] Preferably, the top surface of the elastic membrane is provided with an arc-shaped groove, the active tooth is rotatably connected to the lower side of the chassis, and the active tooth is fixedly connected to the output end of an external motor.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes multiple movable plates arranged in a ring structure and multiple air outlets on the movable plates to effectively support the membrane bubble using airflow, thus avoiding damage to the outer wall of the membrane bubble caused by rigid contact. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the support device of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of the support device of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure when the movable plate and the toothed ring of the present invention are separated;

[0018] Figure 4 This is a schematic cross-sectional view of the chassis structure of the present invention;

[0019] Figure 5 This is a schematic cross-sectional view of the movable plate of the present invention.

[0020] Drawing number explanation:

[0021] 100. Chassis; 110. Elastic membrane; 111. Cavity; 112. Intake port; 120. Connecting pipe; 130. Drive gear;

[0022] 200. Toothed ring; 210. Overlapping block; 211. Limiting groove; 212. Connecting pipe;

[0023] 300, Moving plate; 301, Chamber; 302, Air outlet; 310, Hose; 320, Sliding block. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0026] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0027] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0028] See attached document Figure 1-5 As shown, a multilayer co-extruded film bubble stabilization support device includes a chassis 100, a toothed ring 200 sleeved on the outer wall of the chassis 100, the toothed ring 200 being meshed with an active tooth 130, and an overlapping block 210 fixedly installed in a ring at equal intervals on the upper side of the toothed ring 200. A movable plate 300 is movably connected to the overlapping block 210, and multiple air outlets 302 are evenly opened on the movable plate 300. Specifically, in this application, the blown film bubble is located in the middle of multiple movable plates 300, and gradually grows from the upper side to the lower side of the movable plates 300. Specifically, during this process, because there is gas inside the film bubble, the film bubble will swing randomly during the blown film process. In order to improve the stability of the film bubble, in this application, multiple airflows in a ring at equal intervals are first blown from multiple directions towards the position of the film bubble through multiple air outlets 302 provided on the outer wall of the movable plate 300, thereby limiting the position of the film bubble through flexible contact.

[0029] In one embodiment, in this application, an elastic membrane 110 is fixedly installed in the middle of the top surface of the chassis 100, and a cavity 111 is formed between the elastic membrane 110 and the middle of the chassis 100. A plurality of air intake holes 112 are evenly opened through the upper side of the cavity 111, and the cavity 111 is connected to the air intake end of an external air pump through a connecting pipe 120. Specifically, as mentioned above, during the blown film process, the relative position of the film bubble is fixed by multiple air outlets 302 opened on the inner and outer walls of multiple moving plates 300. Furthermore, in this application, an elastic membrane 110 is provided on the upper side of the chassis 100 at the top position of the chassis 100, and multiple suction holes 112 are evenly opened on the elastic membrane 110. The suction holes 112 are used to effectively adsorb the bottom of the film bubble. Together with the air outlets 302 opened on the moving plates 300, the film bubble can be effectively fixed from multiple directions, and none of them are in direct contact. Instead, the airflow is used to achieve comprehensive fixation of the film bubble.

[0030] In one implementation, the inner wall of the movable plate 300 has an arc-shaped structure, and the suction hole 112 is located between the middle of two adjacent movable plates 300. Specifically, in this application, there is a gap between the middle of two adjacent movable plates 300, and correspondingly, in order to achieve omnidirectional fixation of the membrane bubble, the suction hole 112 is located between the middle of two adjacent movable plates 300, thereby achieving comprehensive and stable support for the membrane bubble.

[0031] Specifically, the top surface of the elastic diaphragm 110 is provided with an arc-shaped groove, and the active gear 130 is rotatably connected to the lower side of the chassis 100, and the active gear 130 is fixedly connected to the output end of the external motor. Specifically, in this application, corresponding to the toothed ring 200 movably connected to the chassis 100, combined with the meshing connection between the active gear 130 and the toothed ring 200, under the action of the active gear 130, the toothed ring 200 and the overlapping block 210 fixedly installed on the toothed ring 200 are synchronously adjusted, and at this time the corresponding moving plate 300 will rotate radially in the toothed ring 200.

[0032] Furthermore, this application also includes a limiting groove 211 formed on the overlapping block 210. A sliding block 320 is fixedly installed at the lower end of the movable plate 300. The sliding block 320 and the limiting groove 211 are slidably engaged, and the upper end of the movable plate 300 can seal the upper opening of the limiting groove 211. The cavity 111 is connected to the output end of an external air pump through a connecting pipe 212. Since the sizes of the membrane bubbles are inconsistent, the size of the space enclosed by the multiple movable plates 300 also needs to be practically adjusted to improve the practicality of the support device. Therefore, in this application, different amounts of gas are injected into the cavity 111 through the connecting pipe 212 to achieve the position of the multiple movable plates 300 relative to the overlapping block 210, which is suitable for stable support between membrane bubbles of different sizes.

[0033] Furthermore, it also includes a chamber 301 formed within the movable plate 300. The chamber 301 is connected to the output end of the external pump body via a hose 310, and the inner wall of the chamber 301 is provided with a rubber layer. When the membrane bubble is injection molded, the corresponding membrane bubble size is relatively large. At this time, the outer wall of the membrane bubble will be close to the position of the movable plate 300. The inner wall of the movable plate 300 with its arc-shaped structure and the rubber layer provided on the movable plate 300 ensure stable support for the membrane bubble.

[0034] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A multi-layer co-extruded film bubble stabilizing support device, characterized by, include: The chassis (100) has a toothed ring (200) fitted on its outer wall. The toothed ring (200) is meshed with the active tooth (130). The chassis (100) also includes an overlapping block (210) fixedly installed on the upper side of the toothed ring (200) in a ring shape with equal spacing. A movable plate (300) is movably connected to the overlapping block (210). The movable plate (300) has a plurality of air outlets (302) evenly opened on it.

2. A multi-layer co-extruded film bubble stabilizing support apparatus according to claim 1, wherein: An elastic membrane (110) is fixedly installed in the middle of the top surface of the chassis (100). A cavity (111) is formed between the elastic membrane (110) and the middle of the chassis (100). Multiple air intake holes (112) are evenly opened through the upper side of the cavity (111). The cavity (111) is connected to the air intake end of an external air pump through a connecting pipe (120).

3. A multi-layer co-extruded film bubble stabilizing support apparatus according to claim 2, wherein: It also includes a limiting groove (211) opened on the overlapping block (210), a sliding block (320) is fixedly installed at the lower end of the moving plate (300), the sliding block (320) and the limiting groove (211) slide together, and the upper end of the moving plate (300) can seal the upper opening of the limiting groove (211), and the cavity (111) is connected to the output end of the external air pump through the connecting pipe (212).

4. A multi-layer co-extruded film bubble stabilizing support apparatus according to claim 3, wherein: It also includes a chamber (301) opened in the movable plate (300), the chamber (301) being connected to the output end of the external pump body through a hose (310), and the inner wall of the chamber (301) being provided with a rubber layer.

5. A multi-layer co-extruded film bubble stabilizing support apparatus according to claim 4, wherein: The inner wall of the movable plate (300) is arc-shaped, and the air intake hole (112) is located between the middle of two adjacent movable plates (300).

6. The multilayer co-extruded film bubble stabilizing support device according to claim 5, characterized in that: The top surface of the elastic membrane (110) is provided with an arc-shaped groove, the active tooth (130) is rotatably connected to the lower side of the chassis (100), and the active tooth (130) is fixedly connected to the output end of the external motor.

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