Bottle blowing machine for plastic bottle processing

Abstract

The bottle blowing machine is characterized in that a preheating assembly and a mold are arranged on one side of a circulating conveying assembly, the preheating assembly comprises a heater, a conveying chain, mounting seats and an air blowing device, the mounting seats are arranged on the conveying chain, bottle openings of plastic bottles are arranged on the mounting seats in a sleeving manner, the mounting seats are arranged at intervals, and the air blowing device is arranged on the conveying chain. The heater is arranged on the side face of the mounting base, the blowing device is arranged below the heater and comprises a body and a supporting base, the body is arranged on the supporting base through an adjusting assembly, the adjusting assembly adjusts the distance between the body and the supporting base, the body is provided with a plurality of air outlets, and the air outlets are arranged at intervals in the conveying direction of the conveying chain and face a bottle opening. A first channel and a second channel are arranged in the main body, the first channel is communicated with an external air pipe and the air outlet, and the second channel is communicated with an external fluid pipe and conveys cooling fluid. The temperature of the bottle opening is kept stable through the air blowing device, and the bottle opening is prevented from being softened and falling off due to too high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle processing, in particular to a bottle blowing machine for plastic bottle processing. Background Art

[0002] A blow molding machine is a device that uses a blow molding process to form hollow containers from plastic particles. Common models include blow molding machines that use PP and PE for one-shot molding. During processing, the plastic bottle is first heated, then the preheated bottle is placed in a blow mold, inflated with high-pressure air, and blown into the desired bottle. For example, patent publication number CN108773056A discloses a heating system for a blow molding machine. This system involves installing a heating hood over a conveyor, which is then equipped with heating tubes and a heating motor. The heating motor heats the heating tubes, raising the temperature inside the hood. However, because the plastic bottle is positioned at the conveyor end via the bottle mouth, it softens after heating, making the bottle mouth susceptible to deformation and dislodging during movement. Utility Model Content

[0003] In order to solve the problems of the prior art, the utility model provides a bottle blowing machine for processing plastic bottles, which can reduce the temperature of the bottle mouth and prevent the bottle mouth from becoming soft and falling off.

[0004] The specific technical solution is as follows: A bottle blowing machine for processing plastic bottles, comprising a preheating component, a circulating conveying component and a mold, the preheating component and the mold being arranged on one side of the circulating conveying component, the preheating component comprising a heater, a conveying chain, a mounting seat and a blowing device, the mounting seat being arranged on the conveying chain, the bottle mouth of the plastic bottle being sleeved on the mounting seat, a plurality of mounting seats being arranged at intervals, the heater being arranged on the side of the mounting seat, the blowing device being arranged below the heater, the blowing device comprising a main body and a support seat, the main body being arranged on the support seat through an adjusting component, the adjusting component adjusting the distance between the main body and the support seat, the main body having a plurality of air outlets, the air outlets being arranged at intervals along the conveying direction of the conveying chain and facing the bottle mouth, a first channel and a second channel being provided in the main body, the first channel being connected to an external air pipe and to the air outlet, the second channel being connected to an external fluid pipe, and the second channel conveying a cooling fluid.

[0005] In some embodiments, the mounting seat includes a base, a fixed plate and a transmission wheel. The base is rotatably set on the fixed plate, the transmission wheel is set below the fixed plate and connected to the base, and a rack is provided on one side of the mounting seat, which is engaged with the transmission wheel.

[0006] In some embodiments, the blowing device is arranged on both sides of the mounting base.

[0007] In some embodiments, an extension portion is provided on the top of the main body, and the extension portion extends toward the mounting seat.

[0008] In some embodiments, an inclined surface is provided below the extension portion, and the air outlet is provided on the inclined surface.

[0009] In some embodiments, the adjustment assembly includes an adjustment rod, one end of which is fixed on the support seat, and the other end of which is sleeved on the main body and threadedly connected and locked with the adjustment rod through a nut.

[0010] In some embodiments, a clamping component is provided between the preheating component and the circulating conveying component.

[0011] In some embodiments, the clamping assembly includes a guide rail, a sliding portion and a driver. The sliding portion is arranged on the guide rail and connected to the driver. A plurality of clamping claws are arranged at intervals on the sliding portion, and the clamping claws are arranged toward the direction of the plastic bottle.

[0012] In some embodiments, the clamping claw is disposed on a lifting mechanism.

[0013] The technical effect of the utility model is as follows: the bottle blowing machine for processing plastic bottles of the utility model heats and softens the bottle body through a heater, and keeps the temperature of the bottle mouth stable through a blowing device to avoid softening and falling off due to excessive temperature; in addition, it can reduce the interference of cooling airflow on the heating of the bottle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of a bottle blowing machine for processing plastic bottles according to an embodiment of the present invention.

[0015] Figure 2 Schematic diagram of a blowing device according to an embodiment of the present invention.

[0016] Figure 3 It is a schematic diagram of a preheating component according to an embodiment of the present invention.

[0017] Figure 4 It is a schematic diagram of the main body of an embodiment of the present utility model.

[0018] Figure 5 It is a cross-sectional view of the main body of an embodiment of the present utility model.

[0019] Figure 6 This utility model Figure 1 Schematic diagram of part A.

[0020] Figure 7 It is a schematic diagram of the lifting mechanism of an embodiment of the present utility model. DETAILED DESCRIPTION

[0021] The essential features and advantages of the present invention are further described below with reference to examples, but the present invention is not limited to the examples listed.

[0022] like Figures 1 to 7As shown, a blow molding machine for processing plastic bottles in this embodiment includes a preheating assembly 1, a circulating conveyor assembly 2, and a mold 3. The preheating assembly 1 and mold 3 are arranged on one side of the circulating conveyor assembly 2. After being heated by the preheating assembly 1, the plastic bottles are conveyed toward the mold 3 through the circulating conveyor assembly 2 and blown into shape by the mold 3. The circulating conveyor assembly 2 can adopt an existing rotary conveyor. The preheating assembly 1 includes a heater 4, a conveyor chain 5, a mounting base 6, and a blower 7. The mounting base 6 is mounted on the conveyor chain 5 and is driven by the conveyor chain 5, which is driven by a sprocket. The bottle mouth 101 of the plastic bottle 10 is mounted on the mounting base 6, and several mounting bases 6 are arranged at intervals. The heater 4 is arranged on the side of the mounting base 6 to heat the bottle body of the plastic bottle 10. The heater 4 can adopt existing heating devices such as infrared or electric heating. The blower 7 is arranged below the heater 4 and faces the bottle mouth of the plastic bottle to cool the bottle mouth and prevent it from becoming unstable after being softened by high temperature. The blowing device 7 includes a main body 71 and a support base 72. The main body 71 is mounted on the support base 72 via an adjustment assembly 73. The adjustment assembly 73 adjusts the distance between the main body 71 and the support base 72 so that the main body 71 is aligned with the bottle mouth 101 of the plastic bottle 10. The main body 71 has a plurality of air outlets 710. The air outlets 710 are spaced apart along the conveying direction of the conveyor chain 5 and face the bottle mouth 101. Each air outlet 710 corresponds to a plastic bottle. This prevents the air ejected from the air outlets 710 from not contacting the plastic bottle, causing the air from the air outlets on opposite sides to collide with each other and cause airflow turbulence. The main body 71 is provided with a first channel 711 and a second channel 712. The first channel 711 is connected to the external air pipe 74 and the air outlet 711, while the second channel 712 is connected to the external fluid pipe 75. The second channel 712 transports cooling fluid, which enters the second channel 712 through the external fluid pipe 75, thereby cooling the main body 71. Gas is fed into the first channel 711 through the external air pipe 74. As the temperature of the main body 71 decreases, the gas cools down. The gas is then ejected toward the bottle mouth through the air outlet 710, thereby cooling the bottle mouth. In the above technical solution, the heater heats and softens the bottle body, while the blowing device maintains a stable temperature at the bottle mouth to prevent it from softening and falling due to excessive temperature.

[0023] In this embodiment, the mounting base 6 includes a base 61, a fixed plate 62, and a transmission wheel 64. The base 61 is rotatably mounted on the fixed plate 62. The transmission wheel 64 is disposed below the fixed plate 62 and connected to the base 61. A rack 65 is disposed on one side of the mounting base 6, meshing with the transmission wheel 64. The transmission wheel 64 is a gear. Therefore, when the base 61 moves, the transmission wheel 64 rotates, thereby driving the base 61 to rotate. The plastic bottle 10 is mounted on the base 61, rotating the plastic bottle 10 so that its mouth is evenly cooled. The blowing device 7 is disposed on both sides of the mounting base 6 to further enhance the cooling effect. The top of the main body 71 is provided with an extension 713, which extends toward the mounting base 6. The extension 713 can block the cold airflow below and the hot airflow above, reducing the impact of airflow. An inclined surface 714 is disposed below the extension 713, and the air outlet 710 is disposed on the inclined surface 714, thereby directing the airflow downward. The adjustment assembly 73 includes an adjustment rod 731 , one end of which is fixed to the support seat 72 , and the other end is sleeved on the main body 71 and is threadedly connected and locked with the adjustment rod 731 through a nut 732 , thereby facilitating the adjustment of the height of the main body 71 .

[0024] In this embodiment, a gripping assembly 8 is provided between the preheating assembly 1 and the circulating conveying assembly 2. The gripping assembly 8 grips the heated plastic bottles and places them onto the circulating conveying assembly 2. The gripping assembly 8 comprises a guide rail 81, a sliding portion 82, and a driver 83. The sliding portion 82 is disposed on the guide rail 81 and connected to the driver 83. The driver 83 is a pneumatic cylinder that drives the sliding portion 82 along the guide rail 81, thereby enabling the sliding portion to reciprocate between the preheating assembly 1 and the circulating conveying assembly 2. A plurality of gripping jaws 84 are spaced apart on the sliding portion 82. The gripping jaws 84 are positioned toward the plastic bottles and grip the plastic bottles. The clamp 84 is on the lifting mechanism 9, and the lifting mechanism 9 can drive the clamp 84 to rise and fall. When clamping a plastic bottle, the clamp 84 is raised to a position higher than the plastic bottle and opened, and the sliding part 82 moves to the top of the heated plastic bottle. The lifting mechanism 9 drives the clamp 84 down to the bottle mouth position, and the clamp clamps and moves upward to remove the plastic bottle; the sliding part 82 moves to the circulating conveying component 2 to put down the plastic bottle. The clamp 84 can adopt an existing pneumatic clamp, and the lifting mechanism can adopt an existing lifting device such as an existing linear slide rail. As an embodiment, the lifting mechanism 9 may include a driving cylinder 91, a slide rail 92 and a lifting block 93. The clamp is set on the lifting block 93. The lifting block is connected to the driving cylinder 91 and is set on the slide rail 92. The lifting block 93 is driven by the driving cylinder 91 to move along the slide rail 92.

[0025] A bottle blowing machine for processing plastic bottles in this embodiment heats and softens the bottle body through a heater, and maintains a stable temperature of the bottle mouth through a blowing device to prevent the bottle from softening and falling off due to excessive temperature; in addition, it can reduce the interference of cooling airflow on the heating of the bottle body.

[0026] It should be noted that the above preferred embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A blow molding machine for plastic bottle processing, comprising a preheating component, a circulating conveying component and a mold, wherein the preheating component and the mold are arranged on one side of the circulating conveying component, characterized in that: The preheating assembly includes a heater, a conveyor chain, a mounting seat and a blowing device. The mounting seat is arranged on the conveyor chain, the bottle mouth of the plastic bottle is sleeved on the mounting seat, and several mounting seats are arranged at intervals. The heater is arranged on the side of the mounting seat, and the blowing device is arranged below the heater. The blowing device includes a main body and a support seat. The main body is arranged on the support seat through an adjustment assembly. The adjustment assembly adjusts the distance between the main body and the support seat. The main body has several air outlets, and the air outlets are arranged at intervals along the conveying direction of the conveyor chain and face the bottle mouth. A first channel and a second channel are provided in the main body. The first channel is connected to an external air pipe and to the air outlet, and the second channel is connected to an external fluid pipe. The second channel transports cooling fluid.

2. The bottle blowing machine for plastic bottle processing according to claim 1, characterized in that: The mounting seat includes a base, a fixed plate and a transmission wheel. The base is rotatably arranged on the fixed plate. The transmission wheel is arranged below the fixed plate and connected to the base. A rack is provided on one side of the mounting seat, and the rack is engaged with the transmission wheel.

3. The bottle blowing machine for plastic bottle processing according to claim 1, characterized in that: The blowing devices are arranged on both sides of the mounting seat.

4. The bottle blowing machine for plastic bottle processing according to claim 1, characterized in that: An extension portion is provided on the top of the main body, and the extension portion extends toward the mounting seat.

5. The bottle blowing machine for plastic bottle processing according to claim 4, characterized in that: An inclined surface is provided below the extension portion, and the air outlet is provided on the inclined surface.

6. The bottle blowing machine for plastic bottle processing according to claim 1, characterized in that: The adjusting assembly includes an adjusting rod, one end of which is fixed on the supporting seat, and the other end of which is sleeved on the main body and is threadedly connected and locked with the adjusting rod through a nut.

7. The bottle blowing machine for plastic bottle processing according to claim 1, characterized in that: A clamping component is provided between the preheating component and the circulating conveying component.

8. The bottle blowing machine for plastic bottle processing according to claim 7, characterized in that: The clamping assembly comprises a guide rail, a sliding part and a driver. The sliding part is arranged on the guide rail and connected to the driver. A plurality of clamping claws are arranged at intervals on the sliding part, and the clamping claws are arranged toward the direction of the plastic bottle.

9. The bottle blowing machine for plastic bottle processing according to claim 8, characterized in that: The clamping claw is arranged on the lifting mechanism.

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