A bottle unloading structure of a bottle blowing machine

Abstract

The application discloses a bottle separating structure of a bottle blowing machine and belongs to the technical field of bottle blowing machines. The bottle separating structure comprises a main frame, two oppositely arranged bottle blowing molds which are slidably connected to the main frame and combine to form a bottle blowing space, a rotating rod rotatably arranged on the bottle blowing mold, a connecting sleeve fixedly connected to the rotating rod, a sliding rod slidably connected into the connecting sleeve, and a clamping head connected to one end of the sliding rod. The clamping head is moved to the upper end opening of the bottle blowing space and extends into the bottle mouth by deflecting the rotating rod. The bottle separating structure has the beneficial effect of providing a bottle separating structure of a bottle blowing machine. When the two bottle blowing molds are separated for bottle separation, the connecting sleeve is deflected, the clamping head is located in the bottle mouth, and when the bottle body is adhered, the two clamping heads are abutted to the two sides in the bottle mouth and pull the bottle body, so that the bottle body is separated from the bottle blowing mold and is separated from the bottle.

Description

Technical Field

[0001] This application relates to the field of blow molding machine technology, and more specifically, to a blow molding machine bottle removal structure. Background Technology

[0002] Plastic bottles are widely used in daily life and across various industries. Their production is primarily achieved through blow molding machines. These machines mainly consist of a preform feeding device, a conveyor chain, a preform heating device, a blow molding device, and a unloading device. The unloading device includes a bottle ejection mechanism, which is crucial for high efficiency and reliability. This necessitates a simple and stable structure. Blow molding dies typically consist of two parts. During blow molding, the two parts assemble, and after blowing, they separate. However, during separation, the bottle can easily adhere to one part of the mold. Furthermore, in existing ejection processes, the bottle falls directly after the mold parts separate. Due to the different materials used in blow molding, more fragile bottles, such as glass, are more vulnerable after blowing, and a direct drop can easily damage the bottle. Conversely, more robust bottles, such as plastic, are less prone to damage after blowing and require a direct drop for subsequent blow molding cycles. Existing ejection structures are difficult to adjust to accommodate both scenarios.

[0003] Therefore, a bottle removal structure for blow molding machines is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a blow molding machine bottle removal structure, comprising: a main frame, on which two opposing blow molding molds are slidably connected, forming a blow molding space, the upper end of which is open for connecting an air nozzle; a mold closing cylinder, fixedly mounted on the main frame, with one end of the piston rod of each of the two mold closing cylinders fixedly connected to the two blow molding molds respectively, pushing the two blow molding molds to close; a guide rod, fixedly mounted on the main frame, passing through the two blow molding molds and slidably engaging with them; a fixing plate, fixedly mounted on the main frame, passing through the two blow molding molds and located below the blow molding space; a rotating rod rotatably mounted on the blow molding mold, with a connecting sleeve fixedly connected to the rotating rod, and a sliding rod slidably connected inside the connecting sleeve, one end of which is connected to a clamping head, the clamping head moving to the upper opening of the blow molding space and extending into the bottle mouth by deflection of the rotating rod.

[0006] With the connecting sleeve and sliding rod, when the two blow molding dies are separated for bottle removal, the connecting sleeve deflects so that the clamping head is inside the bottle mouth. As the two blow molding dies separate from each other, when the bottle body sticks together, the two clamping heads abut against the two sides inside the bottle mouth and pull the bottle body so that the bottle body is detached from the blow molding die for bottle removal.

[0007] Furthermore, the fixed plate is also provided with a lifting column that passes through the fixed plate and slides with the fixed plate. The upper end of the lifting column is fixedly connected to an ejector head. The fixed plate is provided with a receiving groove to accommodate the ejector head. The lower end of the fixed plate is provided with two sliding grooves. Sliding blocks are slidably connected in the sliding grooves. A slider spring is connected between the sliding block and the side wall of the sliding groove. The two ends of the slider spring are respectively fixedly set on the sliding block and the side wall of the sliding groove. A hinge rod is hinged between the sliding block and the positioning plate. The two ends of the hinge rod are respectively hinged to the sliding block and the positioning plate. The lower end of the lifting column is fixedly connected to the positioning plate. A return spring is provided between the positioning plate and the lower end face of the fixed plate. The two ends of the return spring are respectively fixedly connected to the positioning plate and the lower end face of the fixed plate.

[0008] With the lifting column and ejector head, when the two blow molding dies come together, the ejector head is positioned in the receiving groove by the two sliding blocks, so as not to block the two blow molding dies from coming together. When the blow molding is completed and the two blow molding dies separate, the ejector head is lifted by the hinge rod and the return spring and abuts against the lower end of the bottle. Since the ejector head does not move at this time, and the two blow molding dies gradually separate, the bottle is prevented from sticking to the blow molding die by the cooperation of the clamping head.

[0009] Furthermore, a connecting spring is connected between the connecting sleeve and the sliding rod, with both ends of the connecting spring fixedly connected to the sliding rod and the connecting sleeve respectively. A positioning post is fixedly connected to the blow molding die, and a guide hole is provided on the blow molding die, wherein the positioning post is inserted into the guide hole for guidance.

[0010] Furthermore, a pusher plate is slidably arranged inside the guide hole, and a pusher spring is connected between the pusher plate and the end wall of the guide hole. The two ends of the pusher spring are fixedly connected to the pusher plate and the end wall of the guide hole, respectively. When the two blow molding dies are combined, the positioning column pushes the pusher plate to squeeze the pusher spring. A first torsion spring is arranged between the rotating rod and the end wall of the upper groove. The two ends of the first torsion spring are fixedly connected to the rotating rod and the end wall of the upper groove, respectively.

[0011] With the rotating rod and push plate set up, when the two blow molding dies come together, the rotating rod is inserted into the guide hole and pushes the push plate, thereby driving the L-shaped rack to move. Under the action of the meshing gear, the rotating rod is driven to rotate, which in turn causes the connecting sleeve to deflect, so that the sliding rod and the clamping head are away from the upper opening of the blow molding space, making it easier for the blow nozzle to blow the bottle.

[0012] Furthermore, a transmission groove is provided in the upper wall of the guide hole, one end of the rotating rod extends into the transmission groove, and an L-shaped rack is fixedly connected to the push disk. One section of the L-shaped rack is located in the transmission groove, and a meshing gear is fixedly connected to the rotating rod. The L-shaped rack meshes with the meshing gear.

[0013] Furthermore, a mounting post is fixedly installed on the clamping head, and the mounting post is rotatably engaged with one end of the sliding rod. A second torsion spring is connected between the mounting post and the sliding rod, and the two ends of the second torsion spring are respectively fixed on the sliding rod and the mounting post. A positioning rod is slidably connected inside the sliding rod and slides along the axis of the sliding rod. A positioning groove is opened on the side wall of the mounting post for one end of the positioning rod to be inserted. A limit spring is connected between the positioning rod and the sliding rod, and the two ends of the limit spring are respectively fixed on the sliding rod and the positioning rod.

[0014] Furthermore, one end of the positioning rod extends through and protrudes from the side wall of the sliding rod. A through groove is provided on the side wall of the sliding rod for one end of the sliding rod to pass through. A limiting block for abutting against one end of the positioning rod is fixedly connected to the inner wall of the connecting sleeve.

[0015] With the installation post and positioning rod in place, when the two blow molding dies move away from each other, the clamping head is located inside the bottle neck, and one end of the positioning rod is embedded in the positioning groove. The clamping head cannot deflect relative to the sliding rod, causing the sliding rod to extend out of the connecting sleeve. At this point, because the clamping head limits the position of the bottle neck, the bottle will not fall, preventing it from breaking. When the bottle material is more robust, the two blow molding dies continue to move away from each other. When the positioning rod extends beyond the sliding rod and reaches the limit block, it will abut against the limit block, compressing the limit spring and causing one end of the positioning rod to detach from the installation post. If the two blow molding dies continue to move away, the clamping head and sliding rod will deflect, causing the clamping head to detach from the bottle neck, resulting in the bottle falling directly.

[0016] Furthermore, the lower end of the blow molding die has a notch for the passage of the lifting column.

[0017] To prevent the positioning posts from obstructing the two blow molding dies from approaching and assembling.

[0018] Furthermore, the sliding block has a protrusion that protrudes from the fixed plate.

[0019] This causes the two blow molding molds to be pushed against the protrusion when they are brought close together for assembly.

[0020] The beneficial effects of this application are as follows:

[0021] 1. With the connection sleeve and sliding rod, when the two blow molding molds are separated for bottle removal, the connection sleeve deflects so that the clamping head is inside the bottle mouth. As the two blow molding molds separate, when the bottle body sticks together, the two clamping heads abut against the two sides inside the bottle mouth and pull the bottle body so that the bottle body is detached from the blow molding mold for bottle removal.

[0022] 2. With the lifting column and ejector head set up, when the two blow molding dies come together, the two sliding blocks keep the ejector head in the receiving groove, so as not to block the two blow molding dies from coming together. When the blow molding is completed and the two blow molding dies separate, the ejector head is lifted up by the action of the hinge rod and the return spring and abuts against the lower end of the bottle. Since the ejector head does not move at this time, and the two blow molding dies gradually separate, the bottle is prevented from sticking to the blow molding die under the cooperation of the clamping head.

[0023] 3. With the set rotating rod and pushing plate, when the two blow molding molds come together, the rotating rod is inserted into the guide hole and pushes the pushing plate, thereby driving the L-shaped rack to move. Under the action of the meshing gear, the rotating rod is driven to rotate, which in turn causes the connecting sleeve to deflect, so that the sliding rod and the clamping head are away from the upper opening of the blow molding space, making it easier for the blowing nozzle to blow the bottle.

[0024] 4. With the installation post and positioning rod in place, when the two blow molding dies move away from each other, the clamping head is located inside the bottle neck, and one end of the positioning rod is embedded in the positioning groove. The clamping head cannot deflect relative to the sliding rod, causing the sliding rod to extend out of the connecting sleeve. At this point, because the clamping head limits the position of the bottle neck, the bottle will not fall, preventing it from breaking. When the bottle material is relatively sturdy, the two blow molding dies continue to move away from each other. When the positioning rod extends beyond the sliding rod and reaches the limit block, it will abut against the limit block, compressing the limit spring and causing one end of the positioning rod to detach from the installation post. If the two blow molding dies continue to move away, the clamping head and sliding rod will deflect, causing the clamping head to detach from the bottle neck, resulting in the bottle falling directly. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0026] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0027] In the attached diagram:

[0028] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0029] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the lifting column in the embodiment;

[0030] Figure 3 yes Figure 1A cross-sectional view of the fixing plate in the embodiment;

[0031] Figure 4 yes Figure 1 The installation diagram of the connecting sleeve in the embodiment is shown below;

[0032] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle;

[0033] Figure 6 yes Figure 1 The embodiment is shown in the schematic diagram of the installation of the push plate;

[0034] Figure 7 yes Figure 1 The installation diagram of the sliding rod in the embodiment is shown below;

[0035] Figure 8 yes Figure 1 A schematic diagram of the combined state of the two blow molding dies in the embodiment described above;

[0036] Figure 9 yes Figure 1 A schematic diagram of the clamping head installation in the embodiment described above.

[0037] Figure label:

[0038] 10. Main frame; 11. Blow molding mold; 12. Mold closing cylinder; 13. Guide rod; 14. Fixing plate; 15. Ejector column; 16. Positioning plate; 17. Sliding groove; 18. Sliding block; 19. Return spring; 20. Hinge rod; 21. Ejector head; 22. Receiving groove; 23. Sliding spring; 24. Upper side groove; 25. Rotating rod; 26. Connecting sleeve; 27. First torsion spring; 28. Clamping head; 29. ​​Meshing gear; 30. L-shaped rack; 31. Push spring; 32. Sliding rod; 33. Connecting spring; 34. Guide hole; 35. Positioning column; 36. Pushing plate; 37. Transmission groove; 38. Notch; 39. Positioning rod; 40. Mounting column; 41. Positioning groove; 42. Second torsion spring; 43. Limiting spring; 44. Through groove; 45. Limiting block. Detailed Implementation

[0039] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0040] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0041] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0042] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0043] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] Reference Figure 1-9 A bottle removal structure for a blow molding machine includes: a main frame 10, blow molding molds 11, a mold-closing cylinder 12, a guide rod 13, a fixing plate 14, a rotating rod 25, a connecting sleeve 26, a sliding rod 32, and a clamping head 28. Two opposing blow molding molds 11 are slidably connected to the main frame 10. The two blow molding molds 11 combine to form a blow molding space, which has an opening at the top for connecting an air nozzle. Bottles are formed within the blow molding space. The mold-closing cylinder 12 is fixedly mounted on the main frame 10. One end of the piston rod of each of the two mold-closing cylinders 12 is fixedly connected to one of the two blow molding molds 11, pushing the two blow molding molds 11 to close. The mold-closing cylinder 12 allows the two blow molding molds 11 to move closer or further apart. When blow molding is required, the two blow molding molds 11 move closer together; when bottle removal is required, the two blow molding molds move further apart. The distance between the two blow molding molds 11 can be controlled. Guide rod 13 is fixed to the main frame 10, passes through the two blow molding dies 11, and slides in engagement with the two blow molding dies 11. The guide rod 13 ensures that the two blow molding dies 11 can be aligned and assembled, preventing deviations during mold closing.

[0045] A fixing plate 14 is fixedly connected to the main frame 10. The fixing plate 14 passes through the two blow molding dies 11 and is located below the blow molding space. The fixing plate 14 serves as a guide. A lifting column 15 is also provided on the fixing plate 14, passing through and slidingly engaging with it. An ejector head 21 is fixedly connected to the upper end of the lifting column 15. A receiving groove 22 for accommodating the ejector head 21 is formed on the upper surface of the fixing plate 14. The ejector head 21 is located directly below the blow molding space formed by the combination of the two blow molding dies 11. When the two blow molding dies 11 are brought close together, the ejector head 21 is located within the receiving groove 22 and will not affect the combination of the two blow molding dies 11. Two sliding grooves 17 are provided at the lower end of the fixed plate 14. The sliding grooves 17 extend along the movement direction of the blow molding die 11. A sliding block 18 is slidably connected in the sliding groove 17. A slider spring 23 is connected between the sliding block 18 and the side wall of the sliding groove 17. The two ends of the slider spring 23 are respectively fixedly mounted on the sliding block 18 and the side wall of the sliding groove 17. The sliding block 18 has a protrusion protruding from the fixed plate 14. When the two blow molding dies 11 are brought together, the protrusion will be pushed, thereby driving the two sliding blocks 18 to move closer. A notch 38 is provided at the lower end of the blow molding die 11 for the lifting column 15 to pass through. When the two blow molding dies 11 are combined, the lifting column 15 will not cause obstruction.

[0046] A hinge rod 20 is hinged between the sliding block 18 and the positioning plate 16. The two ends of the hinge rod 20 are respectively hinged to the sliding block 18 and the positioning plate 16. The lower end of the lifting column 15 is fixedly connected to the positioning plate 16. A return spring 19 is provided between the positioning plate 16 and the lower end face of the fixing plate 14. The two ends of the return spring 19 are respectively fixedly connected to the lower end face of the positioning plate 16 and the fixing plate 14.

[0047] A rotating rod 25 is rotatably mounted on the upper end of the blow molding die 11. A connecting sleeve 26 is fixedly connected to the rotating rod 25, and a sliding rod 32 is slidably connected inside the connecting sleeve 26. One end of the sliding rod 32 is connected to a clamping head 28. By deflecting the rotating rod 25, the clamping head 28 moves to the upper opening of the blow molding space and extends into the bottle mouth. A connecting spring 33 is connected between the connecting sleeve 26 and the sliding rod 32, with both ends of the connecting spring 33 fixedly connected to the sliding rod 32 and the connecting sleeve 26, respectively. This allows the sliding rod 32 to extend out of the connecting sleeve 26 and retract. Positioning pins 35 are fixedly connected to both blow molding dies 11, and guide holes 34 are also provided on both blow molding dies 11. When the two blow molding dies 11 are combined, the positioning pin 35 on one blow molding die 11 is inserted into the guide hole 34 on the other blow molding die 11 for guidance. A pusher plate 36 is slidably disposed within the guide hole 34. A pusher spring 31 is connected between the pusher plate 36 and the end wall of the guide hole 34. Both ends of the pusher spring 31 are fixedly connected to the pusher plate 36 and the end wall of the guide hole 34, respectively. When the two blow molding dies 11 are combined, the positioning pin 35 pushes the pusher plate 36 to compress the pusher spring 31. A first torsion spring 27 is disposed between the rotating rod 25 and the end wall of the upper side groove 24. Both ends of the first torsion spring 27 are fixedly connected to the rotating rod 25 and the end wall of the upper side groove 24, respectively. A transmission groove 37 is formed in the upper end wall of the guide hole 34. One end of the rotating rod 25 extends into the transmission groove 37. An L-shaped rack 30 is fixedly connected to the pusher plate 36. One section of the L-shaped rack 30 is located in the transmission groove 37. A meshing gear 29 is fixedly connected to the rotating rod 25. The L-shaped rack 30 meshes with the meshing gear 29. When the two blow molding dies 11 are combined, the positioning pin 35 pushes the push plate 36, which in turn drives the L-shaped rack 30 to move, causing the rotating rod 25 to rotate under the action of the meshing gear 29, which drives the connecting sleeve 26 to deflect, so that the sliding rod 32 and the clamping head 28 are away from the upper opening of the blow molding space, making it easier for the blow nozzle to blow the bottle.

[0048] A mounting post 40 is fixedly mounted on the clamping head 28. The mounting post 40 is rotatably engaged with one end of the sliding rod 32. A second torsion spring 42 is connected between the mounting post 40 and the sliding rod 32, with both ends of the second torsion spring 42 fixed to the sliding rod 32 and the mounting post 40, respectively. A positioning rod 39 is slidably connected inside the sliding rod 32, and the positioning rod 39 slides along the axis of the sliding rod 32. A positioning groove 41 is provided on the side wall of the mounting post 40 for one end of the positioning rod 39 to be inserted. A limit spring 43 is connected between the positioning rod 39 and the sliding rod 32, with both ends of the limit spring 43 fixed to the sliding rod 32 and the positioning rod 39, respectively. When one end of the positioning rod 39 is inserted into the positioning groove 41, the clamping head 28 cannot deflect relative to the sliding rod 32; when the positioning rod 39 is disengaged from the positioning groove 41, the clamping head 28 can deflect relative to the sliding rod 32, causing the limit spring 43 to deform. One end of the positioning rod 39 protrudes from the side wall of the sliding rod 32. A through groove 44 is provided on the side wall of the sliding rod 32 for one end of the sliding rod 32 to pass through. A limiting block 45 is fixedly connected to the inner wall of the connecting sleeve 26 for abutting against one end of the positioning rod 39. The limiting block 45 is located at the end of the connecting sleeve 26. When the sliding rod 32 extends out of the connecting sleeve 26, it pulls the connecting spring 33. When the sliding rod 32 extends to a predetermined distance, the limiting block 45 abuts against one end of the positioning rod 39, thereby compressing the limiting spring 43 and causing one end of the positioning rod 39 to disengage from the positioning groove 41.

[0049] Working process or usage method:

[0050] 1. During blow molding, two clamping cylinders 12 control two blow molding dies 11 to move closer together and combine to form a blow molding space. At this time, the positioning pin 35 is inserted into the guide hole 34 and pushes the push plate 36 to squeeze the push spring 31, which drives the L-shaped rack 30 to move. Under the action of the meshing gear 29, the rotating rod 25 is driven to rotate, which in turn causes the connecting sleeve 26 to deflect, so that the sliding rod 32 and the clamping head 28 are away from the upper opening of the blow molding space, which facilitates the blow nozzle to blow the bottle. At the same time, it will push the sliding block 18, which will then drive the lifting pin 15 to move downward under the action of the hinge rod 20, so that the ejector head 21 is located in the receiving groove 22.

[0051] 2. After the blow molding is completed, the two blow molding molds 11 are controlled to move away from each other by the mold closing cylinder 12. At this time, the positioning pin 35 no longer pushes the push plate 36. Under the action of the push spring 31, the L-shaped rack 30 is driven to move, causing the connecting sleeve 26 to deflect and reset. The clamping head 28 is located inside the bottle mouth. The two blow molding molds 11 continue to move away, causing the sliding rod 32 to extend and stretch the connecting spring 33 to prevent the bottle from sticking to the blow molding mold 11. At the same time, under the action of the slider spring 23 and the hinge rod 20, the ejector head 21 is lifted up and abuts against the lower end of the bottle to prevent the lower end of the bottle from sticking and causing the bottle body to tilt and the clamping head 28 to come out.

[0052] 3. When the bottle material is relatively fragile, the bottle mouth is held by the clamping head 28, and the bottom of the bottle is supported by the ejector head 21 to prevent the bottle from falling directly and being damaged. When the bottle material is sturdy, the two blow molding molds 11 continue to move away, causing the sliding rod 32 to extend further. When the sliding rod 32 extends to a predetermined distance, the limiting block 45 will abut against one end of the positioning rod 39, thereby compressing the limiting spring 43 and causing one end of the positioning rod 39 to disengage from the positioning groove 41. At this time, the clamping head 28 can deflect relative to the sliding rod 32, causing the limiting spring 43 to deform. The clamping head 28 will disengage from the bottle mouth, allowing the bottle to fall directly, facilitating the next blow molding. When the clamping head 28 disengages from the bottle mouth, the sliding rod 32 returns to its initial position under the action of the connecting spring 33. At this time, the limiting block 45 no longer abuts against the positioning rod 39, and one end of the positioning rod 39 continues to be embedded in the positioning groove 41 under the action of the limiting spring 43 and the second torsion spring 42.

[0053] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A bottle removal structure for a blow molding machine, characterized in that... ,include: The main frame (10) has two oppositely arranged blow molding molds (11) slidably connected on it. The two blow molding molds (11) are combined to form a blow molding space. The upper end of the blow molding space is open for connecting the blow nozzle. The mold closing cylinder (12) is fixedly installed on the main frame (10). One end of the piston rod of the two mold closing cylinders (12) is fixedly connected to the two blow molding molds (11) respectively, and pushes the two blow molding molds (11) to close. The guide rod (13) is fixed on the main frame (10), passes through the two blow molding dies (11) and slides with the two blow molding dies (11); The fixing plate (14) is fixed on the main frame (10), passes through the two blow molding molds (11) and is located on the lower side of the blow molding space; The blow molding die (11) is rotatably provided with a rotating rod (25), and a connecting sleeve (26) is fixedly connected to the rotating rod (25). A sliding rod (32) is slidably connected inside the connecting sleeve (26). A clamping head (28) is connected to one end of the sliding rod (32). The clamping head (28) moves to the upper opening of the blow molding space and extends into the bottle mouth by the deflection of the rotating rod (25).

2. The bottle removal structure for a blow molding machine according to claim 1, characterized in that: The fixed plate (14) is also provided with a lifting column (15) that passes through the fixed plate (14) and slides with the fixed plate (14). The upper end of the lifting column (15) is fixedly connected to an ejector head (21). The fixed plate (14) is provided with a receiving groove (22) for accommodating the ejector head (21). The lower end of the fixed plate (14) is provided with two sliding grooves (17). A sliding block (18) is slidably connected in the sliding groove (17). A slider spring (23) is connected between the sliding block (18) and the side wall of the sliding groove (17). The two ends of the slider spring (23) are connected to each other. The sliding block (18) and the sliding groove (17) are respectively fixedly installed on the side wall. The sliding block (18) and the positioning plate (16) are hinged together by a hinge rod (20). The two ends of the hinge rod (20) are respectively hinged to the sliding block (18) and the positioning plate (16). The lower end of the lifting column (15) is fixedly connected to the positioning plate (16). A return spring (19) is provided between the positioning plate (16) and the lower end face of the fixing plate (14). The two ends of the return spring (19) are respectively fixedly connected to the lower end face of the positioning plate (16) and the fixing plate (14).

3. The bottle removal structure for a blow molding machine according to claim 2, characterized in that: A connecting spring (33) is connected between the connecting sleeve (26) and the sliding rod (32). The two ends of the connecting spring (33) are fixedly connected to the sliding rod (32) and the connecting sleeve (26), respectively. A positioning post (35) is fixedly connected to the blow molding die (11). A guide hole (34) is provided on the blow molding die (11). The positioning post (35) is inserted into the guide hole (34) for guidance.

4. The bottle removal structure for a blow molding machine according to claim 3, characterized in that: A pusher plate (36) is slidably disposed in the guide hole (34). A pusher spring (31) is connected between the pusher plate (36) and the end wall of the guide hole (34). The two ends of the pusher spring (31) are fixedly connected to the pusher plate (36) and the end wall of the guide hole (34), respectively. When the two blow molding molds (11) are combined, the positioning column (35) pushes the pusher plate (36) to squeeze the pusher spring (31). A first torsion spring (27) is disposed between the rotating rod (25) and the end wall of the upper side groove (24). The two ends of the first torsion spring (27) are fixedly connected to the rotating rod (25) and the end wall of the upper side groove (24), respectively.

5. The bottle removal structure for a blow molding machine according to claim 4, characterized in that: A transmission groove (37) is provided in the upper wall of the guide hole (34). One end of the rotating rod (25) extends into the transmission groove (37). An L-shaped rack (30) is fixedly connected to the push disk (36). One section of the L-shaped rack (30) is located in the transmission groove (37). A meshing gear (29) is fixedly connected to the rotating rod (25). The L-shaped rack (30) meshes with the meshing gear (29).

6. The bottle removal structure for a blow molding machine according to claim 5, characterized in that: A mounting post (40) is fixedly provided on the clamping head (28). The mounting post (40) is rotatably engaged with one end of the sliding rod (32). A second torsion spring (42) is connected between the mounting post (40) and the sliding rod (32). The two ends of the second torsion spring (42) are respectively fixed on the sliding rod (32) and the mounting post (40). A positioning rod (39) is slidably connected inside the sliding rod (32). The positioning rod (39) slides along the axis of the sliding rod (32). A positioning groove (41) is provided on the side wall of the mounting post (40) for one end of the positioning rod (39) to be inserted. A limit spring (43) is connected between the positioning rod (39) and the sliding rod (32). The two ends of the limit spring (43) are respectively fixed on the sliding rod (32) and the positioning rod (39).

7. The bottle removal structure for a blow molding machine according to claim 6, characterized in that: One end of the positioning rod (39) passes through the side wall of the sliding rod (32) and protrudes from the side wall of the sliding rod (32). A through groove (44) is provided on the side wall of the sliding rod (32) for one end of the sliding rod (32) to pass through. A limiting block (45) for abutting against one end of the positioning rod (39) is fixedly connected to the inner wall of the connecting sleeve (26).

8. The bottle removal structure for a blow molding machine according to claim 2, characterized in that: The lower end of the blow molding die (11) has a notch (38) for the lifting column (15) to pass through.

9. The bottle removal structure for a blow molding machine according to claim 2, characterized in that: The sliding block (18) has a protrusion that protrudes from the fixing plate (14).

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