Bottle opening protection device of bottle blowing machine

Abstract

The utility model belongs to the technical field of protection devices, and particularly relates to a bottle opening protection device of a bottle blowing machine, which comprises a first mould, a second mould and a linear driver, the side surfaces of the first mould and the second mould are connected with a mould driving hydraulic cylinder, and a lifting adjusting hydraulic rod is mounted at the top of the linear driver. A cross-shaped mounting frame is rotatably mounted at the top of a piston rod of the lifting adjusting hydraulic rod, a servo motor is fixedly arranged on the inner side of the cross-shaped mounting frame, the output end of the servo motor is connected with the tail end of the piston rod of the lifting adjusting hydraulic rod, the end of the cross-shaped mounting frame is connected with a mounting frame, and a servo electric cylinder is mounted on the inner side of the mounting frame. The tail end of a piston rod of the servo electric cylinder is connected with the outer protection plate, a supporting rod is arranged on the inner side of the outer protection plate, one end of the supporting rod is connected with the semi-annular plate, and a cooling pipe is arranged between the semi-annular plate and the outer protection plate. Therefore, the requirement of quickly replacing the protection device for processing bottles with different specifications can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of protection devices, and particularly relates to a bottle mouth protection device for a blow molding machine. Background Art

[0002] The working principle of a blow molding machine mainly depends on the action of air pressure. Specifically, it blows air into a heated PET preform and uses a specific external mold to shape the preform, thereby manufacturing PET bottles of various shapes. The whole process can be roughly divided into four steps: preheating, blow molding, demolding, and conveying. During the blow molding process, in order to prevent the bottle mouth from deforming, it is necessary to protect the bottle mouth. However, the existing bottle mouth protection devices generally can only be applied to bottle mouths of one specification. When processing bottles of other specifications, it is necessary to disassemble and replace the positioning device, which is very inconvenient to use. Content of the Utility Model

[0003] Aiming at the above problems, the purpose of the utility model is to provide a bottle mouth protection device for a blow molding machine. This device can install multiple groups of inner guard plates of different specifications at the same time. When it is necessary to switch the blow molding specifications, control the servo motor to run to drive the cross-shaped mounting frame to rotate, so as to switch the inner guard plates located on the tops of the first mold and the second mold. It can also quickly replace the inner guard plates according to the diameter of the bottle mouth of the produced preform, so as to meet the requirement of quickly replacing the protection device needed for processing bottles of different specifications.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A bottle mouth protection device for a blow molding machine, including a first mold, a second mold, and a linear driver. The sides of the first mold and the second mold are connected to a mold driving hydraulic cylinder. The top of the linear driver is installed with a lifting adjustment hydraulic rod. The top of the piston rod of the lifting adjustment hydraulic rod is rotatably installed with a cross-shaped mounting frame. The inner side of the cross-shaped mounting frame is fixedly provided with a servo motor. The output end of the servo motor is connected to the end of the piston rod of the lifting adjustment hydraulic rod. The end of the cross-shaped mounting frame is connected to a mounting frame. The inner side of the mounting frame is installed with a servo cylinder. The end of the piston rod of the servo cylinder is connected to an outer guard plate. A support rod is arranged inside the outer guard plate. One end of the support rod is connected to a semi-circular plate. A cooling pipe is arranged between the semi-circular plate and the outer guard plate. The cooling pipe is attached to the semi-circular plate. A coolant storage chamber is installed on the outer guard plate. A semiconductor refrigeration device is installed on the side of the coolant storage chamber. A jack is arranged on the inner arc surface of the semi-circular plate. The jack is inserted and connected with a plug. One end of the plug is integrally formed with an inner guard plate.

[0005] The beneficial effects of the present utility model are as follows: During the bottle blowing process, the micro pump inputs the coolant in the coolant storage chamber into the cooling pipe, and the cooling pipe cools the semi-circular plate together with the inner guard plate, thereby cooling the bottle mouth inside the inner guard plate. After the coolant in the cooling pipe exchanges heat with the bottle mouth inside the inner guard plate, it flows back into the coolant storage chamber. The semi-conductor refrigeration device can refrigerate the coolant storage chamber, thereby cooling the coolant in the coolant storage chamber. With the setting of the heat sink, the coolant in the coolant storage chamber can be kept at a relatively low temperature, thereby maintaining the cooling efficiency of the bottle mouth and preventing the bottle mouth from deforming.

[0006] This device can be installed with multiple groups of inner guard plates of different specifications at the same time. When it is necessary to switch the specifications of the bottle blowing, the servo motor is controlled to operate to drive the cross-shaped mounting frame to rotate, thereby switching the inner guard plate located on the top of the first mold and the second mold. It can also quickly replace the inner guard plate according to the diameter of the bottle embryo mouth produced. When replacing, unscrew the locking bolt to release the fixation between the jack and the plug, and remove the inner guard plate from the inside of the semi-circular plate to replace the inner guard plate of other specifications, which is convenient for this device to be applied to the protection of the bottle embryo mouths of different specifications. According to the sizes of the first mold and the second mold, the front and rear positions and the height of the cross-shaped mounting frame can also be adjusted through the linear driver and the lifting adjustment hydraulic rod, so that this device is applicable to molds of different sizes.

[0007] In order to accommodate the bottle embryo and shape the bottle embryo during the bottle blowing process:

[0008] As a further improvement of the above technical solution: The inner sides of the first mold and the second mold are provided with mold cavities.

[0009] The beneficial effect of this improvement is that the mold cavity is used to accommodate the bottle embryo and shape the bottle embryo during the bottle blowing process.

[0010] In order to enhance the passive heat dissipation ability:

[0011] As a further improvement of the above technical solution: The outside of the coolant storage chamber is also provided with a heat sink.

[0012] The beneficial effect of this improvement is that the heat sink is used to increase the contact area between the coolant storage chamber and the air and enhance the passive heat dissipation ability.

[0013] As a further improvement of the above technical solution: There are screw holes between the top of the semi-circular plate and the jack, and at the top of the plug. The jack and the plug are connected and fixed through a locking bolt and the screw hole.

[0014] In order to fix the bottle mouth:

[0015] As a further improvement of the above technical solution: The inner side of the inner guard plate is provided with a bottle mouth fixing groove.

[0016] The beneficial effects of this improvement are as follows: The bottle mouth fixing groove is used to cooperate with the convex ring on the outer side of the bottle mouth to fix the bottle mouth.

[0017] For the circulation of the coolant:

[0018] As a further improvement of the above technical solution: One side of the coolant storage chamber is connected with a micro pump, and the micro pump and the coolant storage chamber are respectively connected to both ends of the cooling pipe.

[0019] The beneficial effects of this improvement are as follows: The coolant in the coolant storage chamber and the cooling pipe circulates through the micro pump.

[0020] As a further improvement of the above technical solution: One end of the mold driving hydraulic cylinder is connected with the blow molding machine, and the linear driver is installed on the machine table of the blow molding machine.

[0021] The parts not involved in this device are the same as the prior art or can be implemented by using the prior art. Description of the Drawings

[0022] Figure 1 It is an isometric structure schematic diagram of the present utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of the present utility model;

[0024] Figure 3 It is a partial isometric schematic diagram of the present utility model;

[0025] Figure 4 It is an installation schematic diagram of the cross-shaped mounting frame in the present utility model;

[0026] Figure 5 It is a partial separation structure schematic diagram of the present utility model;

[0027] Figure 6 It is a partial structure schematic diagram of the present utility model;

[0028] In the figure: 1. First mold; 2. Second mold; 3. Mold cavity; 4. Mold driving hydraulic cylinder; 5. Linear driver; 6. Lifting adjustment hydraulic rod; 7. Cross-shaped mounting frame; 8. Servo motor; 9. Mounting frame; 10. Servo electric cylinder; 11. Outer protection plate; 12. Support rod; 13. Semi-circular plate; 14. Cooling pipe; 15. Coolant storage chamber; 16. Micro pump; 17. Semiconductor refrigeration device; 18. Heat sink; 19. Jack; 20. Plug; 21. Inner protection plate; 22. Locking bolt; 23. Bottle mouth fixing groove. Detailed Embodiment

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0030] As Figures 1-6 shown, a bottle mouth protection device for a blow molding machine includes a first mold 1, a second mold 2, and a linear driver 5. The sides of the first mold 1 and the second mold 2 are connected to a mold driving hydraulic cylinder 4. A lifting and adjusting hydraulic rod 6 is installed at the top of the linear driver 5. The top of the piston rod of the lifting and adjusting hydraulic rod 6 is rotatably installed with a cross-shaped mounting frame 7. A servo motor 8 is fixedly provided inside the cross-shaped mounting frame 7. The output end of the servo motor 8 is connected to the end of the piston rod of the lifting and adjusting hydraulic rod 6. The end of the cross-shaped mounting frame 7 is connected to a mounting frame 9. A servo electric cylinder 10 is installed inside the mounting frame 9. The end of the piston rod of the servo electric cylinder 10 is connected to an outer protection plate 11. A support rod 12 is provided inside the outer protection plate 11. One end of the support rod 12 is connected to a semi-circular plate 13. A cooling pipe 14 is provided between the semi-circular plate 13 and the outer protection plate 11. The cooling pipe 14 is in contact with the semi-circular plate 13. A coolant storage chamber 15 is installed on the outer protection plate 11. A semiconductor refrigeration device 17 is installed on the side of the coolant storage chamber 15. A jack 19 is provided on the inner arc surface of the semi-circular plate 13. The jack 19 is inserted and connected with a plug 20. One end of the plug 20 is integrally formed with an inner protection plate 21.

[0031] During the process of blow molding, a micro pump 16 inputs the coolant in the coolant storage chamber 15 into the cooling pipe 14. The cooling pipe 14 cools the semi-circular plate 13 together with the inner protection plate 21, thereby cooling the bottle mouth inside the inner protection plate 21. After the coolant in the cooling pipe 14 exchanges heat with the bottle mouth inside the inner protection plate 21, it flows back into the coolant storage chamber 15. The semiconductor refrigeration device 17 can refrigerate the coolant storage chamber 15, thereby cooling the coolant in the coolant storage chamber 15. With the setting of the heat sink 18, the coolant in the coolant storage chamber 15 can be kept at a lower temperature, thereby maintaining the cooling efficiency of the bottle mouth and preventing the deformation of the bottle mouth.

[0032] This device can install multiple groups of inner guard plates 21 with different specifications at the same time. When it is necessary to switch the specifications of the blown bottles, the servo motor 8 is controlled to operate to drive the cross-shaped mounting frame 7 to rotate, so as to switch the inner guard plates 21 located on the tops of the first mold 1 and the second mold 2. The inner guard plate 21 can also be quickly replaced according to the diameter of the mouth of the preform produced. When replacing, unscrew the locking bolt 22 to release the fixation between the jack 19 and the plug 20, and remove the inner guard plate 21 from the inside of the semi-circular plate 13, and replace it with an inner guard plate 21 of other specifications, which is convenient for this device to be applied to the protection of the mouths of preforms with different specifications. According to the sizes of the first mold 1 and the second mold 2, the front-back position and height of the cross-shaped mounting frame 7 can also be adjusted through the linear actuator 5 and the lifting and adjusting hydraulic rod 6, so that this device is applicable to molds of different sizes.

[0033] The inner sides of the first mold 1 and the second mold 2 are provided with mold cavities 3.

[0034] The mold cavity 3 is used to accommodate the preform and shape the preform during the blowing process.

[0035] A heat sink 18 is also provided on the outer side of the coolant storage chamber 15.

[0036] The heat sink 18 is used to increase the contact area between the coolant storage chamber 15 and the air and improve the passive heat dissipation ability.

[0037] Screw holes are provided between the top of the semi-circular plate 13 and the jack 19, and at the top of the plug 20. The jack 19 and the plug 20 are connected and fixed through the locking bolt 22 and the screw holes.

[0038] The inner side of the inner guard plate 21 is provided with a bottle mouth fixing groove 23.

[0039] The bottle mouth fixing groove 23 is used to cooperate with the convex ring on the outer side of the bottle mouth to fix the bottle mouth.

[0040] One side of the coolant storage chamber 15 is connected with a micro pump 16, and the micro pump 16 and the coolant storage chamber 15 are respectively connected with two ends of the cooling pipe 14.

[0041] The coolant in the coolant storage chamber 15 and the cooling pipe 14 circulates through the micro pump 16.

[0042] One end of the mold driving hydraulic cylinder 4 is connected with the blowing machine, and the linear actuator 5 is installed on the machine table of the blowing machine.

[0043] Working principle and usage process of the utility model: When this device is in use, the first mold 1 and the second mold 2 are arranged below the blowing nozzle. The mold driving hydraulic cylinder 4 drives the first mold 1 and the second mold 2 to open and close the mold. When blowing a bottle, the first mold 1 and the second mold 2 close the mold. At this time, the preform is located in the mold cavity 3. The servo electric cylinder 10 drives the outer guard plates 11 to approach each other, so that the inner guard plate 21 clamps the bottle mouth, the inner guard plate 21 wraps and protects the bottle mouth, and the bottle mouth fixing groove 23 limits the bottle mouth to prevent the bottle mouth from deforming and displacing during the bottle blowing process. During the bottle blowing process, the micro pump 16 inputs the coolant in the coolant storage chamber 15 into the cooling pipe 14, and the cooling pipe 14 cools the semi-circular plate 13 together with the inner guard plate 21, thereby cooling the bottle mouth inside the inner guard plate 21. After the coolant in the cooling pipe 14 exchanges heat with the bottle mouth inside the inner guard plate 21, it flows back into the coolant storage chamber 15. The semiconductor refrigeration device 17 can refrigerate the coolant storage chamber 15, thereby cooling the coolant in the coolant storage chamber 15. With the setting of the heat sink 18, the coolant in the coolant storage chamber 15 can be kept at a lower temperature, thereby maintaining the cooling efficiency of the bottle mouth and preventing the bottle mouth from deforming. This device can be installed with multiple groups of inner guard plates 21 of different specifications at the same time. When it is necessary to switch the specifications of the blown bottles, the control servo motor 8 runs to drive the cross-shaped mounting frame 7 to rotate, thereby switching the inner guard plate 21 located on the top of the first mold 1 and the second mold 2. The inner guard plate 21 can also be quickly replaced according to the diameter of the preform bottle mouth produced. When replacing, unscrew the locking bolt 22 to release the fixation between the jack 19 and the plug 20, and remove the inner guard plate 21 from the inside of the semi-circular plate 13, and replace it with an inner guard plate 21 of other specifications, which is convenient for this device to be applied to the protection of the bottle mouths of preforms of different specifications. According to the sizes of the first mold 1 and the second mold 2, the front-back position and height of the cross-shaped mounting frame 7 can also be adjusted through the linear driver 5 and the lifting adjustment hydraulic rod 6, so that this device is suitable for molds of different sizes.

[0044] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0045] In this text, specific examples are used to elaborate on the principle and implementation mode of the present utility model. The description of the above examples is only for helping to understand the method and its core idea of the present utility model. The above is only the preferred implementation mode of the present utility model. It should be noted that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements, refinements or changes can also be made, or the above technical features can be combined in an appropriate way; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present utility model.

Claims

1. A bottle mouth protection device for a bottle blowing machine, characterized in that: The invention comprises a first mold (1), a second mold (2), and a linear drive (5), wherein the side surfaces of the first mold (1) and the second mold (2) are connected to a mold driving hydraulic cylinder (4), a lifting and adjusting hydraulic rod (6) is installed on the top of the linear drive (5), a cross-shaped mounting frame (7) is rotatably installed on the top of the piston rod of the lifting and adjusting hydraulic rod (6), a servo motor (8) is fixedly arranged on the inner side of the cross-shaped mounting frame (7), an output end of the servo motor (8) is connected to the end of the piston rod of the lifting and adjusting hydraulic rod (6), an end of the cross-shaped mounting frame (7) is connected to a mounting frame (9), a servo electric cylinder (10) is installed on the inner side of the mounting frame (9), and the servo electric cylinder (10) ) is connected to an outer guard plate (11), a support rod (12) is provided on the inner side of the outer guard plate (11), one end of the support rod (12) is connected to a semi-annular plate (13), a cooling pipe (14) is provided between the semi-annular plate (13) and the outer guard plate (11), the cooling pipe (14) is fitted with the semi-annular plate (13), a coolant storage chamber (15) is installed on the outer guard plate (11), a semiconductor refrigeration device (17) is installed on the side of the coolant storage chamber (15), an inner arc surface of the semi-annular plate (13) is provided with a socket (19), the socket (19) is inserted and connected with an insert block (20), and one end of the insert block (20) is integrally formed with the inner guard plate (21).

2. A bottle mouth protection device for a bottle blowing machine according to claim 1, characterized in that: A mold cavity (3) is provided inside the first mold (1) and the second mold (2).

3. The bottle mouth protection device for a bottle blowing machine according to claim 1, characterized in that: The outer side of the coolant storage chamber (15) is also provided with a heat sink (18).

4. The bottle mouth protection device for a bottle blowing machine according to claim 1, characterized in that: Screw holes are provided between the top of the semi-annular plate (13) and the insertion hole (19), and the top of the insertion block (20). The insertion hole (19) and the insertion block (20) are connected and fixed to the screw holes via locking bolts (22).

5. The bottle mouth protection device for a bottle blowing machine according to claim 1, characterized in that: A bottle mouth fixing groove (23) is provided on the inner side of the inner guard plate (21).

6. The bottle mouth protection device for a bottle blowing machine according to claim 1, characterized in that: A micro pump (16) is connected to one side of the coolant storage chamber (15), and the micro pump (16) and the coolant storage chamber (15) are respectively connected to two ends of the cooling pipe (14).

7. The bottle mouth protection device for a bottle blowing machine according to claim 1, characterized in that: One end of the mold driving hydraulic cylinder (4) is connected to the bottle blowing machine, and the linear drive (5) is installed on the machine platform of the bottle blowing machine.

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