A cooling and shaping device for plastic barrier bottles

Abstract

This utility model relates to the technical field of plastic container manufacturing equipment and discloses a cooling and shaping device for plastic barrier bottles, applied to the cooling and shaping of bottle bodies. It includes a bottle body shaping mechanism, a bottle cavity shaping mechanism, and a cooling mechanism. The bottle body shaping mechanism includes a fixed cavity, a guide post fixedly installed on the top surface of the fixed cavity, a connecting seat fixedly installed at the end of the guide post, and a movable cavity slidably disposed on the outer surface of the guide post. A threaded sleeve is fixedly installed inside the connecting seat. This cooling and shaping device for plastic barrier bottles, by setting up a bottle body shaping mechanism, uses the fixed cavity and movable cavity to clamp the bottle body, thereby defining the shape of the bottle body shell. Then, by setting up a bottle cavity shaping mechanism, the bottle mouth of the fixed cavity is sealed and the internal air pressure is fixed, thereby effectively reducing excessive deformation of the bottle body caused by thermal expansion and contraction, while improving the interlayer bonding strength and dimensional stability of the bottle body.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic container manufacturing equipment, specifically a cooling and shaping device for plastic barrier bottles. Background Technology

[0002] Plastic barrier bottles are plastic packaging containers that have been modified through special processes or materials to have excellent barrier properties against gases (such as oxygen and carbon dioxide) and liquids (such as water vapor and flavoring substances). They are widely used in the food, beverage, pharmaceutical, and cosmetic industries to extend product shelf life and maintain stable quality.

[0003] In existing plastic barrier bottle cooling and shaping technologies, if the bottle mouth is left open for cooling after high-temperature blow molding, the external atmospheric pressure will directly compress the bottle body. Areas with abrupt changes in thickness, such as the bottle shoulder and bottom, will shrink first due to stress concentration, and the cross-section of the bottle body will easily change from a circle to an ellipse, affecting the adaptability of subsequent filling lines. To address these issues, we propose a plastic barrier bottle cooling and shaping device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a cooling and shaping device for plastic barrier bottles, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a cooling and shaping device for plastic barrier bottles, applied to the cooling and shaping of bottle bodies, comprising: a bottle body shaping mechanism, a bottle cavity shaping mechanism, and a cooling mechanism. The bottle body shaping mechanism includes a fixed cavity, a guide post fixedly installed on the top surface of the fixed cavity, a connecting seat fixedly installed at the end of the guide post, and a movable cavity slidably disposed on the outer surface of the guide post. A threaded sleeve is fixedly installed inside the connecting seat, and a screw is threadedly connected to the connecting seat through the threaded sleeve. The bottle cavity shaping mechanism includes a first guide rail fixedly connected to the fixed cavity and a bidirectional air pump. A first slide block is slidably connected inside the first guide rail, and the side of the first slide block adjacent to the bottle body shaping mechanism is fixed. The system includes a plug with a fixed air pipe inside. A pressure gauge is mounted on the air pipe, and a flexible air pipe is attached to the outer end of the air pipe. The air pipe is connected to a bidirectional air pump via the flexible air pipe. A first cylinder is fixedly mounted on the side wall of the inner cavity of the first guide rail, and the output shaft of the first cylinder is fixedly connected to a first slide block. The cooling mechanism includes a second guide rail, which is also fixedly connected to the fixed cavity, and heat dissipation holes opened on the fixed cavity and the movable cavity. A second slide block is slidably mounted inside the second guide rail, and a cooling fan is fixedly mounted on the top surface of the second slide block. A second cylinder is fixedly mounted on the side wall of the inner cavity of the second guide rail, and the output shaft of the second cylinder is fixedly connected to the second slide block.

[0006] Preferably, there are two guide posts, which are symmetrically arranged on both sides of the center of the fixed cavity.

[0007] Preferably, the bottle body is located between the fixed cavity and the movable cavity, and both the fixed cavity and the movable cavity have cavities that cooperate with the bottle body.

[0008] Preferably, a handwheel is fixedly installed on the upper end of the screw passing through the threaded sleeve, and a protruding button is provided on the surface of the handwheel.

[0009] Preferably, the plug has a T-shaped structure and can be inserted into the bottle opening.

[0010] Preferably, a sealing gasket is fixedly installed on the side of the plug adjacent to the bottle body, and the sealing gasket is made of rubber.

[0011] Preferably, both ends of the gas tube pass through plugs, the pressure gauge is located at the outer end of the gas tube, and after the plug is inserted into the bottle body, the inner end of the gas tube is located in the inner cavity of the bottle body.

[0012] Preferably, the first guide rail and the second guide rail are symmetrically arranged on both sides of the fixed cavity, and the orientation of the cooling fan is consistent with the orientation of the cooling hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This plastic barrier bottle cooling and shaping device, by setting up a bottle body shaping mechanism, uses a fixed cavity and a movable cavity to clamp the bottle body to limit the shape of the bottle body shell, and then sets up a bottle cavity shaping mechanism to seal the bottle mouth of the fixed cavity and fix the air pressure inside the bottle, thereby effectively reducing the excessive deformation of the bottle body caused by thermal expansion and contraction, while improving the interlayer bonding strength and dimensional stability of the bottle body.

[0015] 2. This plastic barrier bottle cooling and shaping device uses a cooling mechanism to reduce the overall temperature. The distance between the cooling fan and the overall device can be flexibly adjusted to change the cooling rate of the overall device and the bottle, so as to meet the cooling rate requirements of different bottle materials and improve the overall structural performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the cavity structure of this utility model;

[0018] Figure 3 This is an exploded view of the cavity structure of this utility model;

[0019] Figure 4This is a schematic diagram of the plug structure of this utility model;

[0020] Figure 5 This is an exploded view of the threaded sleeve structure of this utility model.

[0021] In the diagram: 1. Bottle body shaping mechanism; 11. Fixed cavity; 12. Movable cavity; 13. Guide post; 14. Connecting seat; 15. Threaded sleeve; 16. Screw; 17. Handwheel; 2. Bottle cavity shaping mechanism; 21. Plug; 22. First slide; 23. Rigid air pipe; 24. Flexible air pipe; 25. First guide rail; 26. First cylinder; 27. Two-way air pump; 28. Pressure gauge; 29. ​​Sealing gasket; 3. Cooling mechanism; 31. Second guide rail; 32. Second slide; 33. Cooling fan; 34. Second cylinder; 35. Heat dissipation hole; 4. Bottle body. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 A cooling and shaping device for plastic barrier bottles, applied to the cooling and shaping of bottle body 4, includes: a bottle body shaping mechanism 1, a bottle cavity shaping mechanism 2, and a cooling mechanism 3. The bottle body shaping mechanism 1 includes a fixed cavity 11, a guide post 13 fixedly installed on the top surface of the fixed cavity 11, a connecting seat 14 fixedly installed at the end of the guide post 13, and a movable cavity 12 slidably disposed on the outer surface of the guide post 13. A threaded sleeve 15 is fixedly installed inside the connecting seat 14, and a screw 16 is threadedly connected to the connecting seat 14 through the threaded sleeve 15. There are two guide posts 13, which are symmetrically arranged. On both sides of the center of the fixed cavity 11, the bottle body 4 is located between the fixed cavity 11 and the movable cavity 12. Both the fixed cavity 11 and the movable cavity 12 have cavities that cooperate with the bottle body 4. The bottle body is clamped by the upper and lower cavities to form a shaping space that fits the bottle body perfectly. The shape of the cavity is highly matched with the design of the bottle body 4 to avoid deformation of the bottle body during cooling and to ensure dimensional accuracy. The screw 16 passes through the upper end of the threaded sleeve 15 and is fixedly installed with a handwheel 17. The surface of the handwheel 17 is provided with a protruding button. The lifting and lowering of the movable cavity 12 is controlled by the threaded transmission to realize the quick clamping and release of the bottle body 4.

[0024] The bottle shaping mechanism 2 includes a first guide rail 25 fixedly connected to the fixed cavity 11 and a bidirectional air pump 27. A first slide block 22 is slidably connected inside the first guide rail 25. A plug 21 is fixedly installed on the side of the first slide block 22 adjacent to the bottle shaping mechanism 1. A rigid air tube 23 is fixedly installed inside the plug 21, and a pressure gauge 28 is installed on the rigid air tube 23. A flexible air tube 24 is installed at the outer end of the rigid air tube 23, and the rigid air tube 23 is connected to the bidirectional air pump 27 through the flexible air tube 24. A first cylinder 26 is fixedly installed on the side wall of the inner cavity of the first guide rail 25, and the output shaft of the first cylinder 26 is fixedly connected to the first slide block 22. The plug 21 has a T-shaped structure design. The plug 21 can be inserted into the bottle mouth of the bottle body 4. A sealing gasket 29 is fixedly installed on the side of the plug 21 adjacent to the bottle body 4. The sealing gasket 29 is made of rubber. The bottle mouth is sealed by the T-shaped plug 21. The gas tube 23 inflates or deflates the bottle to control the internal pressure. When inflating, the internal pressure is evenly distributed to counteract the external cooling contraction force and prevent the bottle body from concave. Both ends of the gas tube 23 pass through the plug 21. The pressure gauge 28 is located at the outer end of the gas tube 23. The pressure gauge 28 displays the internal pressure in real time to ensure stable pressure and prevent overpressure from causing the bottle body 4 to expand or underpressure from causing insufficient contraction. After the plug 21 is inserted into the bottle body 4, the inner end of the gas tube 23 is located in the inner cavity of the bottle body 4.

[0025] The cooling mechanism 3 includes a second guide rail 31 that is also fixedly connected to the fixed cavity 11, and heat dissipation holes 35 opened on the fixed cavity 11 and the movable cavity 12. A second slide block 32 is slidably arranged inside the second guide rail 31. A cooling fan 33 is fixedly installed on the top surface of the second slide block 32. A second cylinder 34 is fixedly installed on the side wall of the inner cavity of the second guide rail 31. The output shaft of the second cylinder 34 is fixedly connected to the second slide block 32. The first guide rail 25 and the second guide rail 31 are symmetrically arranged on both sides of the fixed cavity 11. The orientation of the cooling fan 33 is the same as the orientation of the heat dissipation holes 35. The forced convection accelerates the heat dissipation from the surface of the bottle 4. The heat dissipation holes 35 promote air circulation inside the cavity and, together with the heat dissipation holes 35, form a cross breeze effect, thereby improving the cooling effect.

[0026] Working principle: The bottle 4 is placed between the fixed cavity 11 and the movable cavity 12. Then, the screw 16 is tightened by the handwheel 17, thereby squeezing the movable cavity 12, making the movable cavity 12 fit tightly against the fixed cavity 11. The cavity formed between the fixed cavity 11 and the movable cavity 12 restricts the shape of the bottle 4. Then, the first cylinder 26 pushes the first slide block 22 to slide on the first guide rail 25, so that the plug 21 on the side of the first guide rail 25 is inserted into the bottle mouth of the bottle 4. At this time, the sealing gasket 29 on the side of the plug 21 is simultaneously squeezed and deformed, ensuring the sealing of the bottle mouth after the plug 21 seals the bottle 4. Then, the bidirectional air pump 27 is started, and gas is injected into the bottle 4 through the flexible air tube 24 and the rigid air tube 23 inside the plug 21. At the same time, the gas can be injected into the bottle 4 through the flexible air tube 24 and the rigid air tube 23 inside the plug 21. The pressure gauge 28 observes the air pressure inside the bottle 4, and the bidirectional air pump 27 has the functions of suction and inflation, adjusting the air pressure inside the bottle 4 in real time to meet the internal cavity shaping requirements of the bottle 4 at different cooling stages. After the cooling fan 33 is started, the generated airflow blows towards the closed fixed cavity 11 and movable cavity 12. Both the fixed cavity 11 and movable cavity 12 are provided with heat dissipation holes 35, which can be used for airflow inflow, increasing their contact area with the fixed cavity 11 and movable cavity 12, ensuring the cooling effect. Furthermore, the second cylinder 34 can drive the second slide 32 and the cooling fan 33 to slide on the second guide rail 31, thereby adjusting the distance between the cooling fan 33 and the fixed cavity 11 and movable cavity 12, effectively meeting the cooling requirements of bottles 4 made of different materials.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling and shaping device for plastic barrier bottles, used for cooling and shaping bottle bodies (4), characterized in that, include: The bottle body shaping mechanism (1), the bottle cavity shaping mechanism (2), and the cooling mechanism (3) are provided. The bottle body shaping mechanism (1) includes a fixed cavity (11). A guide post (13) is fixedly installed on the top surface of the fixed cavity (11). A connecting seat (14) is fixedly installed at the end of the guide post (13). A movable cavity (12) is slidably provided on the outer surface of the guide post (13). A threaded sleeve (15) is fixedly installed inside the connecting seat (14). A screw (16) is threadedly connected to the connecting seat (14) through the threaded sleeve (15). The bottle cavity shaping mechanism (2) includes a first guide rail (25) fixedly connected to the fixed cavity (11) and a bidirectional air pump (27). The first guide rail (25) is slidably connected to a first slide block (22). A plug (21) is fixedly installed on the side of the first slide block (22) adjacent to the bottle body shaping mechanism (1). A rigid air pipe (23) is fixedly installed inside the plug (21). A pressure gauge (28) is installed on the rigid air pipe (23). A flexible air pipe (24) is installed at the outer end of the rigid air pipe (23). The rigid air pipe (23) is connected to the bidirectional air pump (27) through the flexible air pipe (24). A first cylinder (26) is fixedly installed on the side wall of the inner cavity of the first guide rail (25). The output shaft of the first cylinder (26) is fixedly connected to the first slide block (22). The cooling mechanism (3) includes a second guide rail (31) that is also fixedly connected to the fixed cavity (11), and heat dissipation holes (35) opened on the fixed cavity (11) and the movable cavity (12). A second slide block (32) is slidably arranged inside the second guide rail (31). A cooling fan (33) is fixedly installed on the top surface of the second slide block (32). A second cylinder (34) is fixedly installed on the side wall of the inner cavity of the second guide rail (31). The output shaft of the second cylinder (34) is fixedly connected to the second slide block (32).

2. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, There are two guide posts (13), which are symmetrically arranged on both sides of the center of the fixed cavity (11).

3. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, The bottle body (4) is located between the fixed cavity (11) and the movable cavity (12), and both the fixed cavity (11) and the movable cavity (12) have cavities that cooperate with the bottle body (4).

4. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, The screw (16) passes through the upper end of the threaded sleeve (15) and a handwheel (17) is fixedly installed thereon. The surface of the handwheel (17) is provided with a protruding button.

5. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, The plug (21) is a T-shaped structure and can be inserted into the bottle mouth of the bottle body (4).

6. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, A sealing gasket (29) is fixedly installed on the side of the plug (21) adjacent to the bottle body (4), and the sealing gasket (29) is made of rubber.

7. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, Both ends of the rigid air tube (23) pass through the plug (21). The pressure gauge (28) is located at the outer end of the rigid air tube (23). After the plug (21) is inserted into the bottle body (4), the inner end of the rigid air tube (23) is located in the inner cavity of the bottle body (4).

8. The cooling and shaping device for a plastic barrier bottle according to claim 1, characterized in that, The first guide rail (25) and the second guide rail (31) are symmetrically arranged on both sides of the fixed cavity (11), and the orientation of the heat dissipation fan (33) is consistent with the orientation of the heat dissipation hole (35).

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