Plastic bottle blow molding device

Abstract

The utility model provides a plastic bottle blow molding device which comprises a machine body, a bottle blowing mechanism and a main mold, and the bottle blowing mechanism is mounted at the front part of the top surface of the machine body; the plastic bottle mold has the advantages that the bottom support ascends to seal the bottom opening of the mold, the heating wire is arranged in the heating layer and is electrified, the connecting wire is led out from the lower part of the bottom support, and the bulge is arranged in the middle of the top surface of the bottom support, so that the plastic bottle can be stably placed on the bottom support, and the eccentric phenomenon is reduced; meanwhile, convex rings are fixedly connected to the edge of the top face of the heating layer and between the edge and the protrusions, it is guaranteed that the plastic bottles are evenly distributed on the bottom support, and deformation caused by too large local stress is avoided; due to the fact that the bottom of the bottle blank is not prone to being heated, the heating layer is designed on the bottom support, it is guaranteed that the bottom of the plastic bottle can be evenly heated, deformation caused by too high or too low local temperature is avoided, in this way, during blow molding of the plastic bottle, bottom materials of the plastic bottle can be fully melted and expanded, and the problems that materials are prone to being accumulated at the bottom, and the thickness of the bottle bottom and the thickness of a bottle body are uneven are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to blow molding technical field especially a plastic bottle blow molding device. BACKGROUND

[0002] The plastic bottle blow molding device is the key equipment of producing plastic bottle, and the plastic bottle blow molding device is mainly based on blow molding technology, and after the plastic raw material (such as PET and the like) is made into bottle embryo, finally, the plastic bottle with certain shape and volume is made through the steps such as heating softening, blowing forming and cooling solidification.

[0003] The plastic bottle blow molding device in the prior art can blow plastic bottle finished product, but the problems of bottle bottom material accumulation and thick bottle bottom and eccentric bottle bottom are prone to occur, and the reasons are that the bottle bottom is not preheated when the bottle embryo is preheated, and the bottom material is not easy to melt when blowing the bottle, and therefore the plastic bottle blow molding device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a plastic bottle blow molding device to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides a plastic bottle blow molding device, which comprises a machine body, a bottle blowing mechanism and a main mold, the front part of the top surface of the machine body is provided with the bottle blowing mechanism, the front surface of the machine body is provided with the main mold, and the mold cavity of the main mold faces forward.

[0007] The bottom of the machine body is fixedly connected with a track, the slide seat is movably connected on the track, the back of the slide seat is fixedly connected with a movable mold, the movable mold can be combined with the main mold, and the top of the movable mold and the main mold is open.

[0008] The output end of the bottle blowing mechanism has a liftable air pipe;

[0009] The bottom end of the front surface of the machine body is fixedly connected with a support, the end of the support is fixedly connected with a hydraulic cylinder, and the tail end of the hydraulic cylinder is fixedly connected to the front surface of the slide seat.

[0010] The inside of the machine body is provided with an electric cylinder, the tail end of the output end of the electric cylinder is fixedly connected with a bottom support, the top surface of the bottom support is fixedly connected with a heating layer, and the heating layer is internally provided with an electric heating wire.

[0011] The middle part of the top surface of the heating layer is fixedly connected with a protrusion, and the edge of the top surface of the heating layer is fixedly connected with a convex ring between the edge and the protrusion.

[0012] Preferably, the bottle blowing mechanism is connected with a high-pressure gas source, and the output power source of the bottle blowing mechanism is hydraulic power.

[0013] With the technical scheme, the blow molding device is specially used for blow molding plastic bottles, and the initial state of the plastic bottle is a small bottle embryo.

[0014] Preferably, the two tracks are arranged side by side, and the material of the track is stainless steel.

[0015] Preferably, the inner part of the movable mold and the main mold is provided with a preheating layer, and the air pipe can enter the mold cavity through the top opening of the movable mold and the main mold.

[0016] With the technical scheme, the blow molding device is innovatively designed as an electric cylinder, a bottom support, a heating layer, a protrusion and a protruding ring.

[0017] Preferably, the output end of the electric cylinder faces upward, and the bottom support can close the bottom opening of the mold cavity.

[0018] With the technical scheme, the plastic bottle blow molding device is used. The bottle embryo is first preheated by infrared, and then is sent into a mold, i.e. a blow mold, by a flow line or a mechanical arm. The blow mold is customized according to the shape and size of the required bottle. The hydraulic cylinder works, the sliding seat moves along the track, the movable mold approaches the main mold, the mold is closed, at the same time, the electric cylinder works, the bottom support rises to close the bottom opening of the mold, the heating layer is internally provided with an electric heating wire and is connected with electricity, and the wire is led out from below the bottom support. After the mold is closed, compressed air is filled into the bottle embryo through a high-pressure inflation device, i.e. an air pipe, after the air pipe is lowered. In this process, the bottle embryo is blown and tightly adheres to the inner wall of the main mold and the movable mold and the surface of the heating layer under the action of the high-pressure gas. After being blown, the bottle is cooled in the blow mold for a certain time to ensure the stability of the shape and size of the bottle. After being cooled, the bottle is taken out of the blow mold, and the blow molding process is completed.

[0019] Preferably, the protruding ring is provided with two inner and outer rings.

[0020] The device has the advantages that: a new type of bottom support is designed, when the blow molding mold is closed, the electric cylinder works, the bottom support rises, the bottom opening of the mold is closed, the heating layer is internally provided with an electric heating wire, and is connected to electricity, the wiring is led out from below the bottom support, the middle part of the top surface of the bottom support is provided with a protrusion, this design can ensure that the plastic bottle is stably placed on the bottom support, and reduces eccentricity phenomenon.

[0021] Compared with the prior art, the device has the advantages and beneficial effects that:

[0022] The plastic bottle blow molding device is provided with an electric cylinder, a bottom support, a heating layer, a protrusion and a protruding ring, a new type of bottom support is designed, when the blow molding mold is closed, the electric cylinder works, the bottom support rises, the bottom opening of the mold is closed, the heating layer is internally provided with an electric heating wire, and is connected to electricity, the wiring is led out from below the bottom support, the middle part of the top surface of the bottom support is provided with a protrusion, this design can ensure that the plastic bottle is stably placed on the bottom support, and reduces eccentricity phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0024] Figure 1 It is a structural schematic view of the first perspective of the present application;

[0025] Figure 2 It is a structural schematic view of the second perspective of the present application;

[0026] Figure 3 It is a structural schematic view of the third perspective of the present application;

[0027] Figure 4 It is a structural schematic view of the third perspective of the present application; Figure 2 It is an enlarged structural schematic view of position A of the present application.

[0028] In the figure: 1-body, 2-bottle blowing mechanism, 3-main mold, 4-rail, 5-sliding seat, 6-moving die, 7-air pipe, 8-bracket, 9-hydraulic cylinder, 10-electric cylinder, 11-bottom support, 12-heating layer, 13-protrusion, 14-convex ring. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0031] As Figures 1-4 shown, the plastic bottle blowing device provided by the present application comprises a body 1, a bottle blowing mechanism 2 and a main mold 3. The front part of the top surface of the body 1 is provided with the bottle blowing mechanism 2. The front surface of the body 1 is provided with the main mold 3. The mold cavity of the main mold 3 faces forward.

[0032] The bottom of the body 1 is fixedly connected with a rail 4. The rail 4 is movably connected with a sliding seat 5. The back of the sliding seat 5 is fixedly connected with a moving die 6. The moving die 6 can be combined with the main mold 3. The top of the moving die 6 and the main mold 3 is open.

[0033] The output end of the bottle blowing mechanism 2 is provided with a liftable air pipe 7.

[0034] The bottom end of the front surface of the body 1 is fixedly connected with a bracket 8. The end of the bracket 8 is fixedly connected with a hydraulic cylinder 9. The tail end of the hydraulic cylinder 9 is fixedly connected to the front surface of the sliding seat 5.

[0035] An electric cylinder 10 is installed on the inner side of the body 1. The tail end of the output end of the electric cylinder 10 is fixedly connected with a bottom support 11. The top surface of the bottom support 11 is fixedly connected with a heating layer 12. The heating layer 12 is internally provided with an electric heating wire.

[0036] The middle part of the top surface of the heating layer 12 is fixedly connected with a protrusion 13. The top surface edge of the heating layer 13 and the protrusion 13 are both fixedly connected with a convex ring 14.

[0037] Embodiment 1: the bottle blowing mechanism 2 is connected with a high-pressure gas source, and the output power source of the bottle blowing mechanism 2 is hydraulic. The blow molding device is used for blow molding plastic bottles, and the initial state of the plastic bottles is a small bottle embryo. Two tracks 4 are arranged side by side, and the material of the track 4 is stainless steel. The inner part of the movable die 6 and the main die 3 is provided with a preheating layer, and the air pipe 7 can enter the mold cavity through the top opening of the movable die 6 and the main die 3. The blow molding device is innovatively designed as an electric cylinder 10, a bottom support 11, a heating layer 12, a protrusion 13 and a protruding ring 14.

[0038] Embodiment 2: the output end of the electric cylinder 10 is upward, and the bottom support 11 can close the bottom opening of the mold cavity. The protruding ring 14 is provided with an inner ring and an outer ring. The distribution of the plastic bottles on the bottom support 11 is uniform, and local deformation caused by excessive force is avoided.

[0039] The working principle of the utility model is as follows:

[0040] The plastic bottle blow molding device, the bottle embryo is first preheated by infrared, and is sent into a mold, i.e. a blow molding position, by a flow line or a mechanical arm. The blow molding is customized according to the shape and size of the required bottle. The hydraulic cylinder 9 works, the sliding seat 5 moves along the track 2, the movable die 6 approaches the main die 3, the mold is closed, at the same time, the electric cylinder 10 works, the bottom support 11 rises, the mold bottom opening is closed, the heating layer 12 is internally provided with an electric heating wire, and is connected with electricity, and the wiring is led out from below the bottom support 11. After the mold is closed, compressed air is filled into the bottle embryo through the high-pressure inflation device, i.e. the air pipe 7, after the air pipe 7 is lowered. In this process, the bottle embryo is blown and tightly adheres to the inner wall of the main die 3 and the movable die 6, and the surface of the heating layer 12 under the action of the high-pressure gas. The bottle after being blown and expanded is cooled in the blow molding for a certain time, so as to ensure the stability of the shape and size. After cooling, the bottle is taken out from the blow molding, and the blow molding process is completed.

[0041] Compared with the prior art, the utility model has the following beneficial effects:

[0042] The plastic bottle blow molding device is provided with an electric cylinder 10, a bottom support 11, a heating layer 12, a protrusion 13 and a protruding ring 14. The bottom support 11 is designed in a novel mode. When the blow molding mold is closed, the electric cylinder 10 works, and the bottom support 11 rises to close the bottom opening of the mold. The heating layer 12 is internally provided with an electric heating wire and is connected to electricity. The wire is led out from below the bottom support 11. The top surface of the bottom support 11 is provided with a protrusion 13 in the middle. This design can ensure that the plastic bottle is stably placed on the bottom support and reduces eccentricity. Meanwhile, the protruding ring 14 is fixedly connected between the top surface edge of the heating layer 13 and the protrusion 13, which ensures that the plastic bottles are evenly distributed on the bottom support 11 and avoids deformation caused by excessive local stress. Since the bottom of the bottle blank is not easy to heat, the heating layer is designed on the bottom support 11 to ensure that the bottom of the plastic bottle can be uniformly heated, thereby avoiding deformation caused by excessive or insufficient local temperature. In this way, the bottom material of the plastic bottle can be fully melted and expanded during blow molding, thereby solving the problems of easy material accumulation at the bottom of the bottle, uneven thickness of the bottle bottom and the bottle body.

Claims

1. A plastic bottle blow molding apparatus characterized by comprising: Including body, bottle blowing mechanism, main mould, the front of the top surface of body is equipped with bottle blowing mechanism, the front of body is equipped with main mould, the mould cavity of main mould faces forward; The bottom of body is fixedly connected with track, the slide is movably connected on track, the back of slide is fixedly connected with movable mould, movable mould can be combined with main mould, the top of movable mould and main mould, top opening; The output end of bottle blowing mechanism has a liftable air pipe; The bottom end of front of body is fixedly connected with support, the end of support is fixedly connected with hydraulic cylinder, the end of hydraulic cylinder is fixedly connected on the front of slide; The inside of body is equipped with electric cylinder, the end of output end of electric cylinder is fixedly connected with bottom support, the top surface of bottom support is fixedly connected with heating layer, the heating layer is built-in with electric heating wire; The middle of top surface of heating layer is fixedly connected with convex, the edge of top surface of heating layer, the edge and convex are all fixedly connected with convex ring.

2. A plastic bottle blowing apparatus as claimed in claim 1, wherein: Bottle blowing mechanism is communicated with high pressure gas source, the output power source of bottle blowing mechanism is hydraulic pressure.

3. A plastic bottle blowing apparatus as claimed in claim 2, wherein: The track is side by side provided with two, the material of track is stainless steel.

4. A plastic bottle blowing apparatus as claimed in claim 3, wherein: The inside of movable mould and main mould is provided with preheating layer, the air pipe can enter the mould cavity through the top opening of movable mould and main mould.

5. A plastic bottle blowing apparatus as claimed in claim 4, wherein: The output end of electric cylinder faces upward, the bottom support can close the bottom opening of mould cavity.

6. A plastic bottle blowing apparatus as claimed in claim 5, wherein: The convex ring is provided with two rings inside and outside.

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