A blow molding apparatus and its molding process for glass bottle production

Abstract

This invention discloses a blow molding device and its molding process for glass bottle production, specifically relating to the field of glass bottle production technology. The invention employs two sets of feeding swing components, which are lowered by a lifting cylinder to separate the bottom mold from the molding cavity. Simultaneously, an electromagnet pushes a limiting side plate upwards, precisely restricting the sides of the glass bottle to prevent deviation during subsequent operations. A moving plate lowers the upper bottom mold to a set target height, and a drive shaft drives multiple swing rods to rotate 90 degrees counterclockwise, tilting the molded glass bottle out of the mold. The drive shaft then rotates 180 degrees clockwise, at which point the multiple bottom molds are at the opposite angle to those during tilting. A cleaning component slides along a limiting block, entering the bottom mold cavity and contacting its inner wall. The cleaning component rotates and cleans the bottom mold, removing impurities accumulated after each molding process, ensuring cleanliness of the bottom mold after each molding and improving molding accuracy.

Description

Technical Field

[0001] This invention relates to the field of air compressor technology, specifically to a blow molding apparatus and molding process for glass bottle production. Background Technology

[0002] Glass bottles are commonly used packaging containers in the food, pharmaceutical, and chemical industries. Their forming process typically combines mold preforming and blow molding. On existing glass bottle production lines, molten glass is sheared and dripped into the primary mold, where it is preformed by a preforming mechanism. Then, it is fed into the forming mold by a blow molding device for high-pressure blowing, causing the preform to expand and conform to the mold wall within the mold cavity, ultimately resulting in a finished glass bottle with a stable bottle neck, shoulder, body, and bottom structure.

[0003] A search revealed that utility model patent CN210620587U discloses a high-efficiency glass bottle forming and processing equipment that combines pressing and blowing processes. When the air pump supplies air to the blowing tube, it can simultaneously rotate the blowing tube. The combined operation of the motor and the air pump can simultaneously rotate the blowing tube and blow the molten glass. Moreover, the blowing and rotation speeds are uniform, avoiding failure in blowing the molten glass due to improper control of the blowing speed, or the molten glass being thrown out due to improper control of the rotation speed. This saves manpower while providing a more uniform blowing effect and higher efficiency.

[0004] After the glass bottles are blown, the process relies heavily on manual cleaning of glass debris and other residues inside the mold cavity and bottom mold. Especially in the bottom mold area, as the molding cycle progresses, these residues can hinder the normal transfer of heat, leading to uneven heat dissipation from the mold, affecting the molding quality, and potentially causing mold damage and surface defects on the bottle, thus affecting the molding accuracy of subsequent glass bottles. Furthermore, the cleaning process requires machine downtime, slowing down production speed, resulting in low equipment utilization and limited production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a blow molding apparatus and molding process for glass bottle production, so as to solve the problems mentioned in the background art.

[0006] The main technical problem solved by this invention is: Residues can hinder the normal transfer of heat, leading to uneven heat dissipation from the mold, affecting the molding quality, and may also cause mold damage and bottle surface defects, affecting the molding accuracy of subsequent glass bottles. In addition, the cleaning process requires machine shutdown, slowing down the production speed, resulting in low equipment utilization and limited production efficiency.

[0007] This invention can be achieved through the following technical solutions: A blow molding apparatus for glass bottle production includes a middle base plate, an upper top plate fixedly disposed above the middle base plate, a mold base disposed on the upper surface of the middle base plate, a bottom plate disposed below the middle base plate, and feeding units that do not work simultaneously disposed on both sides above the middle base plate. The surface of the mold base is provided with two sets of molding cavities. Each set of molding cavities includes multiple mold slots. Each mold slot is equipped with a liftable bottom mold. A material unloading swinging component that drives the bottom mold to move is provided directly below each set of molding cavities. The unloading swing component includes a lifting cylinder mounted on the base plate. A moving plate is mounted on the pushing end of the lifting cylinder. Multiple swing rods are connected to the upper surface of the moving plate through the same drive shaft. The end of each swing rod is fixed to the bottom surface of the corresponding bottom mold. Between the two sets of material feeding swinging parts, there is a contact wiping part for rotating and cleaning the inner wall of the bottom mold; The wiping component includes a fixing frame fixed to the base plate, and multiple cylindrical blocks are rotatably provided on the upper part of the fixing frame. Cleaning components are limited and slidable at both ends of the cylindrical blocks. Each bottom mold has a limiting side plate embedded in both end faces to restrict the side of the glass bottle, and a heat insulation plate is fixedly provided on the bottom surface of each bottom mold. An electromagnet is fixedly installed on the side of the heat insulation plate away from the bottom mold to push the corresponding limiting side plate to move.

[0008] A further technical improvement of the present invention is that a gear component is fixedly sleeved on the outside of each cylinder block, and two adjacent gear components are meshed together, with one of the end gear components being driven by a servo motor.

[0009] A further technical improvement of the present invention is that: both ends of the cylindrical block are slidably provided with limiting shafts fixed to the center surface of the cleaning component; the inner cavity of the cylindrical block is connected to a moving abutment block by an electromagnet; the moving abutment block abuts against the inclined surface on the side of the limiting shaft. The limiting shaft extends into the outside of one end of the cylinder and is fitted with a spring.

[0010] A further technical improvement of the present invention is that: a material discharge groove is provided on one side of the bottom plate adjacent to each set of material discharge swinging parts, and a downwardly recessed groove is provided at the entrance of the material discharge groove. The groove is used to restrict the rotation of the side plate into the groove, and the bottom of the inner cavity of the material discharge groove is inclined downward. The end of the chute is equipped with a transfer belt for conveying glass bottles.

[0011] A further technical improvement of the present invention is that: two sets of slots are provided through the surface of the intermediate substrate, each set of slots includes multiple through slots, and each through slot communicates with the corresponding mold slot; A reciprocating cylinder is installed on the lower surface edge of the middle substrate. The pushing end of the reciprocating cylinder is connected to a ash discharge pipe that slides along the bottom surface of the middle substrate. The upper end of the ash discharge pipe is provided with several air inlets, which are connected to corresponding through slots. The lower end of the ash discharge pipe is connected to the ash collection box.

[0012] A further technical improvement of the present invention is that the bottom plate, the middle base plate, and the top plate are fixedly connected by the same vertical guide post in four directions; The feeding unit includes two slide rails, each slide rail is fixedly connected to a vertical guide post in the corresponding direction, and a sliding plate slides on the slide rail. Multiple claw blocks for gripping the liquid in the glass bottle are installed on the lower surface of the sliding plate. The upper part of the claw block is provided with a clamping area, which clamps the bottle mouth formed by the initial mold. The lower part of the claw block is provided with an enclosing area, which surrounds and supports the outer periphery of the bottle body formed by the initial mold.

[0013] A further technical improvement of the present invention is that: a high-pressure air pump is provided on the upper surface of the upper top plate, and a central gear is installed in the middle of the lower surface of the upper top plate. Both sides of the central gear are meshed with worm gears through transmission gears, and the thread directions of the two worm gears are consistent. Each worm gear is engaged with multiple worm wheels, and each worm wheel is threaded with an air blowing pipe in the middle. The air blowing pipe passes through the top plate and is connected to the air outlet of the high-pressure air pump through a hose. The initial height of the air blowing pipe is higher than the sliding height of the sliding plate.

[0014] A further technical improvement of the present invention is that: two sets of upper pressure molds for forming the mouth of the glass bottle are limited and slidably mounted on the upper surface of the mold base, and the two sets of upper pressure molds work simultaneously; The screw on the upper surface of the mold base is provided with two sets of driving parts, each set of driving parts including a positive thread and a negative thread, and both sets of driving parts are threadedly connected to the upper mold.

[0015] A forming process for a blow molding apparatus used in glass bottle production, the forming process comprising the following steps: Step 1: With both upper molds in the open state, the sliding plate slides to the top of a set of forming mold cavities. After the claw blocks open, they fall into the corresponding mold grooves. The two upper molds close. A set of unloading swing parts pushes the bottom mold into the mold groove, and the corresponding upper molds press the bottle mouth of the glass preform. The other set of forming mold cavities does not contain glass preforms. Step 2: Multiple air blowing pipes on both sides simultaneously descend to the same height as the bottle mouth. Multiple air blowing pipes on one side blow air to form the glass bottle preform. The ash discharge pipe slides on the bottom surface of the middle substrate to block the through groove below the forming cavity of the other set of forming cavities where no glass bottle preform is placed. Multiple air blowing pipes on the other side blow air to clean the upper mold and the inner wall of the mold groove, and the ash discharge pipe removes the waste. Step 3: The lifting cylinder pushes the molded glass bottle carried by the bottom mold to descend. The limiting side plates at both ends extend upward and restrict the two sides of the molded glass bottle. The swing rod rotates 90 degrees counterclockwise to transfer the molded glass bottle to the dropping chute and is then transported to the next process by the transfer belt. Step 4: Then the swing arm rotates 180 degrees clockwise. By pushing the moving block, the limiting shaft slides along the end face of the rotating cylinder block, and the rotating cleaning component completes the rotation cleaning of the inner wall surface of the bottom mold. The bottom molds of the other set were cut and cleaned in the same way.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting two sets of unloading swing components, the unloading swing components are pushed down by the lifting cylinder to separate the bottom mold from the forming mold cavity. At the same time, the electromagnet pushes the limiting side plate to rise, and the limiting side plate precisely restricts the two sides of the glass bottle to prevent deviation in subsequent operations. The moving plate drives the bottom mold above to fall to the set target height. The drive shaft drives multiple swing rods to rotate 90 degrees counterclockwise. By flipping, the formed glass bottle is tilted out of the mold. The drive shaft then rotates 180 degrees clockwise. At this time, the multiple bottom molds are at the opposite angle to the tilting angle. Then, the cleaning component slides on the cylinder block. The cleaning component enters the bottom mold cavity and contacts its inner wall. The rotation of the cylinder block drives the cleaning component to rotate and clean the bottom mold, removing impurities accumulated after each molding. This ensures the cleanliness of the bottom mold after each molding, improves molding accuracy, reduces manual intervention, and improves the automation level and production efficiency of the production line. 2. One set of forming cavities is blowing glass preforms, while the other set of forming cavities is not in operation. A reciprocating cylinder pushes the ash discharge pipe to slide along the bottom surface of the middle plate, at which time the ash discharge pipe is connected to the mold groove and the through groove. Then, air is blown synchronously from the height of the upper bottle mouth to flush the inner wall of the forming cavity. The residue blown off the cavity wall is forced to detach and move downward under the push of the airflow, so that the residue falling into the through groove can smoothly enter the inner cavity of the ash discharge pipe, improving the ash discharge capacity and realizing the centralized ash discharge and internal cleaning of the forming cavity in the non-operating state. After the current set of forming cavities completes blowing, the other set of forming cavities enters the cleaning stage in the same way. The two sets of cavities alternate between blowing and cleaning modes to keep the forming cavities clean at all times, ensuring the continuity and stability of glass bottle blowing. 3. The worm gears on both sides generate synchronous rotational motion in the same direction, causing multiple worm wheels to rotate synchronously. The rotation of the worm wheels directly drives the corresponding air blowing pipes to rise and fall. Multiple air blowing pipes descend synchronously to the designated position at the bottle mouth, blowing the glass preform in one set of forming cavities into shape, and blowing air to clean the inner wall of another set of forming cavities, improving the air blowing cleaning effect. After the cleaning action is completed, the air blowing pipes rise back to a safe height above the sliding plate with the worm wheels, avoiding interference with the feeding unit during the preform transfer process. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the mounting structure of the worm gear of the present invention; Figure 3 For the present invention Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the installation structure of the mold base and the bottom mold of the present invention; Figure 5 For the present invention Figure 4 A magnified view of a section at point B in the middle; Figure 6 This is a schematic diagram of the installation structure of the moving block and the limiting shaft of the present invention.

[0019] In the diagram: 1. Middle base plate; 2. Top plate; 3. Slide rail; 4. Sliding plate; 5. Claw block; 6. Mold base; 7. Air blowing pipe; 8. Worm gear; 9. Central rotating gear; 10. Worm; 11. High-pressure air pump; 12. Upper pressure mold; 13. Drive unit; 14. Bottom mold; 15. Ash discharge pipe; 16. Reciprocating cylinder; 17. Through groove; 18. Material drop chute; 19. Lifting cylinder; 20. Moving plate; 21. Transfer belt; 22. Groove; 23. Restricting side plate; 24. Fixing frame; 25. Cylinder block; 26. Cleaning component; 27. Limiting shaft; 28. Gear component; 29. ​​Swing rod; 30. Moving stop block. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0021] Please see Figures 1-6 As shown, the present invention provides a blow molding apparatus for glass bottle production, including a middle base plate 1, an upper top plate 2 fixedly provided above the middle base plate 1, a mold base 6 provided on the upper surface of the middle base plate 1, a bottom plate provided below the middle base plate 1, and feeding units that do not work simultaneously provided on both sides above the middle base plate 1. The surface of the mold base 6 is provided with two sets of molding cavities. Each set of molding cavities includes multiple mold slots. Each mold slot is equipped with a liftable bottom mold 14. A material unloading swinging component that drives the bottom mold 14 to move is provided directly below each set of molding cavities. The unloading swing component includes a lifting cylinder 19 mounted on the base plate. A motion plate 20 is mounted on the pushing end of the lifting cylinder 19. Multiple swing rods 29 are connected to the upper surface of the motion plate 20 through the same drive shaft. The end of each swing rod 29 is fixed to the bottom surface of the corresponding bottom mold 14. Between the two sets of material feeding swing parts, there is a contact wiping part for rotating and cleaning the inner wall of the bottom mold 14; The wiping component includes a fixing frame 24 fixed to the base plate. Multiple cylindrical blocks 25 are rotatably provided on the upper part of the fixing frame 24. Cleaning components 26 are limited and slidable at both ends of the cylindrical blocks 25. Each bottom mold 14 has a limiting side plate 23 embedded in its two end faces to restrict the side of the glass bottle, and a heat insulation plate is fixedly provided on the bottom surface of each bottom mold 14. An electromagnet is fixedly installed on the side of the heat insulation plate away from the bottom mold 14 to push the corresponding limiting side plate 23 to move.

[0022] At work, such as Figure 4 As shown, the feeding unit on one side is in the working clamping state, that is, it reaches the bottom of a set of forming mold cavities. The unloading swinging part under this forming mold cavity is pushed by the lifting cylinder 19 and keeps rising until the bottom mold 14 is tightly pressed against the mold groove of the forming mold cavity, which facilitates the blowing and forming of glass bottles. The feeding unit on the other side is not working. After blow molding, the unloading swing component of this set is pushed down by the lifting cylinder 19 in the opposite direction, so that the bottom mold 14 is separated from the forming mold cavity; at the same time, the electromagnet pushes the limiting side plate 23 to rise, and the limiting side plate 23 precisely limits the two sides of the glass bottle to prevent deviation in subsequent operations. The moving plate 20 drives the bottom mold 14 above to fall to the set target height, and the drive shaft drives multiple swing rods 29 to rotate 90 degrees counterclockwise. By flipping, the formed glass bottle is tilted out of the mold and enters the next step of processing. After tilting, the drive shaft rotates 180 degrees clockwise. At this time, the multiple bottom molds 14 are at opposite angles to those during tilting. Then, the cleaning component 26 slides on the cylinder block 25. The cleaning component 26 enters the inner cavity of the bottom mold 14 and contacts its inner wall. Through the rotation of the cylinder block 25, the bottom mold 14 is rotated and cleaned to remove impurities accumulated after each molding. This ensures the cleanliness of the bottom mold 14 after each molding, avoids the accumulation of impurities, ensures the quality of the next molding, precisely controls the molding shape of the glass bottle, ensures that each molded bottle meets the requirements, and avoids products with inconsistent shapes. In this way, the molding accuracy is improved, manual intervention is reduced, and the automation level and production efficiency of the production line are greatly improved. See Figure 6 As shown, each cylindrical block 25 is fixedly sleeved with a gear component 28, and two adjacent gear components 28 are meshed together. One of the gear components 28 at the end is driven by a servo motor. Both ends of the cylindrical block 25 are slidably provided with limiting shafts 27 that are fixed to the center surface of the cleaning component 26. The inner cavity of the cylindrical block 25 is connected to a moving abutment block 30 by an electromagnet. The moving abutment block 30 abuts against the inclined surface on the side of the limiting shaft 27. A spring is fitted onto the outside of one end of the cylinder block 25, extending into the limiting shaft 27.

[0023] The servo motor drives the end gear 28 to rotate. Relying on the meshing of adjacent gears 28, multiple cylinder blocks 25 rotate synchronously. During the cleaning operation, the electromagnet pushes the moving block 30 to apply pressure to the limiting shaft 27 along the inclined plane. This causes the limiting shaft 27 to drive the cleaning component 26 to extend outward and fit against the inner wall of the bottom mold 14. The rotation of the cylinder block 25 drives the cleaning component 26 to form a circumferential cleaning path within the bottom mold 14, thereby achieving uniform wiping of the inner wall of the bottom mold 14 and cleaning the inner walls of multiple bottom molds 14 at the same time, significantly improving cleaning efficiency. After cleaning, the electromagnet is de-energized, and the spring automatically resets the limiting shaft 27 and the cleaning component 26.

[0024] See Figure 4 and Figure 5 As shown, a material drop trough 18 is provided on one side of the bottom plate adjacent to each set of material drop swinging parts. A downward recessed groove 22 is provided at the entrance of the material drop trough 18. The groove 22 is used to restrict the rotation of the side plate 23. The bottom of the inner cavity of the material drop trough 18 is inclined downward. The end of the discharge chute 18 is provided with a transfer belt 21 for conveying glass bottles.

[0025] When the molded glass bottle is unloaded, the moving plate 20 descends to the target height, and then the swing arm 29 rotates towards the unloading trough 18. At this time, the lower limiting side plate 23 enters the groove 22 and restricts the rotation of the limiting side plate 23, so that the limiting side plate 23 will not extend into the unloading area during the unloading process, ensuring that the molded glass bottle smoothly leaves the bottom mold 14 and enters the unloading trough 18. After demolding, the molded glass bottle automatically slides along the inclined surface to the transfer belt 21 at the end of the unloading trough 18 under the action of gravity. The transfer belt 21 continuously transports the molded glass bottle, realizing the automatic transfer of the molded glass bottle from demolding to the conveying section, improving the stability of bottle output and production efficiency.

[0026] See Figure 4 As shown, two sets of slots are provided through the surface of the middle substrate 1. Each set of slots includes multiple through slots 17, and each through slot 17 communicates with the corresponding mold slot. A reciprocating cylinder 16 is installed on the lower surface edge of the middle substrate 1. The pushing end of the reciprocating cylinder 16 is connected to a ash discharge pipe 15 that slides along the bottom surface of the middle substrate 1. The upper end of the ash discharge pipe 15 is provided with several air inlets, which are connected to the corresponding through slots 17. The lower end of the ash discharge pipe 15 is connected to the ash collection box.

[0027] One set of forming cavities is blowing glass preforms, while the other set of forming cavities is not in operation; The reciprocating cylinder 16 pushes the ash discharge pipe 15 to slide along the bottom surface of the middle base plate 1. At this time, the ash discharge pipe 15 is connected to the mold groove and the through groove 17. After the ash discharge pipe 15 is aligned, air is blown synchronously from the height of the upper bottle mouth to flush the inner wall of the molding cavity. The residue blown away from the mold cavity wall is forced to detach and move downward under the push of the airflow, so that the residue falling into the through groove 17 can smoothly enter the inner cavity of the ash discharge pipe 15, improve the ash discharge capacity, and realize the centralized ash discharge of multiple mold cavities.

[0028] As the reciprocating cylinder 16 drives the ash discharge pipe 15 to move back and forth, the air inlet end of the ash discharge pipe 15 is positioned one by one below the corresponding through groove 17, realizing the point-by-point collection of dust generated by multiple sets of mold grooves. The lower end of the ash discharge pipe 15 is connected to the ash collection box, and impurities are transported to the ash collection box for centralized storage under the action of gravity or auxiliary airflow.

[0029] See Figure 1 As shown, the base plate, the middle base plate 1, and the top plate 2 are fixedly connected by the same vertical guide post in four directions; The feeding unit includes two slide rails 3, each slide rail 3 is fixedly connected to a vertical guide post in the corresponding direction, and a sliding plate 4 slides on the slide rail 3. Multiple claw blocks 5 for gripping the liquid in the glass bottle are installed on the lower surface of the sliding plate 4. The upper part of the claw block 5 is provided with a clamping area, which clamps the bottle mouth formed by the initial mold. The lower part of the claw block 5 is provided with a surrounding area, which surrounds and supports the outer periphery of the bottle body formed by the initial mold.

[0030] Once the initial mold is formed and the bottle mouth shape is stable, the gripping area of ​​the claw block 5 contacts the bottle mouth, achieving stable gripping of the bottle mouth through the gripping structure. The surrounding area at the bottom of the claw block 5 provides flexible surrounding support for the side wall of the bottle formed by the initial mold without affecting the thermal deformation of the bottle body, so that the bottle body maintains a vertical and stable posture during the transfer process, avoiding bottle body deformation caused by swaying, tilting or collision. Through the sliding of the sliding plate 4 on the slide rail 3, the bottle preform is taken out from the initial mold and transferred to the top of the forming mold cavity.

[0031] See Figure 2 and Figure 3 As shown, a high-pressure air pump 11 is provided on the upper surface of the upper top plate 2, and a central gear 9 is installed in the middle of the lower surface of the upper top plate 2. Both sides of the central gear 9 are meshed with worm gears 10 through transmission gears, and the threads of the two worm gears 10 are in the same direction. Each worm 10 is meshed with multiple worm wheels 8, and each worm wheel 8 is threaded with an air blowing pipe 7 in the middle. The air blowing pipe 7 passes through the upper top plate 2 and is connected to the air outlet of the high-pressure air pump 11 through a hose. The initial height of the air blowing pipe 7 is higher than the sliding height of the sliding plate 4.

[0032] When the central gear 9 rotates, the worm gears 10 on both sides will synchronously generate rotational motion in the same direction; The worm gear 8 has an internal threaded hole at its center, which is connected to the external thread of the air blowing pipe 7. This allows the rotation of the worm gear 8 to directly drive the air blowing pipe 7 to rise and fall. Since the air blowing pipe 7 passes through the upper top plate 2 and is connected to the high-pressure air pump 11 through a hose, when the worm 10 rotates and drives the worm gear 8 to rotate, the air blowing pipe 7 moves up and down in the vertical direction without rotating. At the same time, it drives multiple worm gears 8, so that multiple air blowing pipes 7 rise and fall synchronously. Multiple air blowing pipes 7 descend synchronously to the designated position at the bottle mouth to perform high-pressure air blowing cleaning on the molding cavity, improving the air blowing cleaning effect; after the cleaning action is completed, the air blowing pipes 7 rise back to a safe height above the sliding plate 4 with the worm gear 8 to avoid interference with the feeding unit during the feeding or bottle preform transfer process.

[0033] See Figure 4 As shown, two sets of upper molds 12 for forming the mouth of the glass bottle are limited and slidable on the upper surface of the mold base 6, and the two sets of upper molds 12 work simultaneously. The upper surface of the mold base 6 has two sets of drive parts 13 on the screw. Each set of drive parts 13 includes a positive thread and a negative thread. Both sets of drive parts 13 are threadedly connected to the upper mold 12.

[0034] The two sets of drive units 13 generate axial displacement in opposite directions respectively; The upper pressure mold 12, which is threadedly connected to it, moves towards the bottle opening simultaneously, achieving a synchronous pressing action on both sides. When the screw is rotated in the opposite direction, the drive unit 13 moves in the opposite direction, and the upper mold 12 separates to both sides at the same time, so that the bottle mouth is released from the pressed state; one set of upper molds 12 presses and forms, and the other set of upper molds 12 performs cleaning and blowing work.

[0035] This invention provides a molding process for a blow molding apparatus for glass bottle production, the molding process comprising the following steps: Step 1: The two upper molds 12 are in the open state. The sliding plate 4 slides to the top of a set of forming mold cavities. After the claw block 5 opens, it falls into the corresponding mold groove. The two upper molds 12 close. A set of unloading swing parts pushes the bottom mold 14 into the mold groove, and the corresponding upper mold 12 presses the bottle mouth of the glass bottle preform. The other set of forming mold cavities does not contain glass bottle preforms. Step 2: Multiple air blowing pipes 7 on both sides simultaneously descend to the same height as the bottle mouth. Multiple air blowing pipes 7 on one side blow air to form the glass bottle preform. The ash discharge pipe 15 slides on the bottom surface of the middle base plate 1 to block the through groove 17 below the forming cavity of the other set of forming cavities without glass bottle preforms. Multiple air blowing pipes 7 on the other side blow air to clean the upper mold 12 and the inner wall of the mold groove, and the ash discharge pipe 15 removes the waste. Step 3: The lifting cylinder 19 pushes the molded glass bottle carried by the bottom mold 14 to descend. The limiting side plates 23 at both ends extend upward and restrict the two sides of the molded glass bottle. The swing rod 29 rotates 90 degrees counterclockwise to transfer the molded glass bottle to the dropping trough 18 and is then transported to the next process by the transfer belt 21. Step 4: Then, the swing arm 29 rotates 180 degrees clockwise, pushing the moving block 30. The limiting shaft 27 slides along the end face of the rotating cylinder block 25, and the rotating cleaning component 26 completes the rotation cleaning of the inner wall surface of the bottom mold 14. The other set of bottom molds 14 are unloaded and cleaned in the same way.

[0036] In use, this invention employs two sets of material-feeding swing components. These components are lowered by the lifting cylinder 19, separating the bottom mold 14 from the forming cavity. Simultaneously, an electromagnet pushes the limiting side plate 23 upward, precisely restricting both sides of the glass bottle to prevent deviation during subsequent operations. The moving plate 20 lowers the upper bottom mold 14 to the set target height, and the drive shaft drives multiple swing rods 29 to rotate 90 degrees counterclockwise, tilting the formed glass bottle out of the mold. The drive shaft then rotates 180 degrees clockwise, at which point the multiple bottom molds 14 are at the opposite angle to when they were tilted. At this point, the cleaning component 26 slides on the cylinder block 25, allowing it to enter the inner cavity of the bottom mold 14 and contact its inner wall. The rotation of the cylinder block 25 drives the cleaning component 26 to rotate and clean the bottom mold 14, removing impurities accumulated after each forming process. This ensures the cleanliness of the bottom mold 14 after each forming, improves forming accuracy, reduces manual intervention, and enhances the automation and production efficiency of the production line. One set of forming cavities is blowing glass preforms, while the other set of forming cavities is not in operation. The reciprocating cylinder 16 pushes the ash discharge pipe 15 to slide along the bottom surface of the middle base plate 1. At this time, the ash discharge pipe 15 is connected to the mold groove and the through groove 17. Then, air is blown synchronously from the height of the upper bottle mouth to flush the inner wall of the forming cavity. The residue blown off the mold cavity wall is forced to detach and move downward under the push of the airflow, so that the residue falling into the through groove 17 can smoothly enter the inner cavity of the ash discharge pipe 15, improving the ash discharge capacity and realizing the centralized ash discharge and internal cleaning of the forming cavity in the non-working state. After the current forming cavity completes the blowing, the other forming cavity enters the cleaning stage in the same way. The two sets of cavities alternate between blowing and cleaning modes to keep the forming cavity clean at all times, ensuring the continuity and stability of glass bottle blowing. The worm gears 10 on both sides generate synchronous rotational motion in the same direction, causing multiple worm wheels 8 to rotate synchronously. The rotation of the worm wheels 8 directly drives the corresponding air blowing pipes 7 to rise and fall. Multiple air blowing pipes 7 descend synchronously to the designated position at the bottle mouth, blowing the glass preform in one set of molding cavities into shape, and blowing air to clean the inner wall of another set of molding cavities, improving the air blowing cleaning effect. After the cleaning action is completed, the air blowing pipes 7 rise back to a safe height above the sliding plate 4 with the worm wheels 8, avoiding interference with the feeding unit during the preform transfer process.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A glass bottle blowing apparatus, comprising a middle substrate (1), characterized in that: The upper top plate (2) is fixedly provided above the middle substrate (1), and the upper surface of the middle substrate (1) is provided with a mold base (6). The lower part of the middle substrate (1) is provided with a bottom plate, and the upper sides of the middle substrate (1) are provided with feeding units that do not work at the same time. The surface of the mold base (6) is provided with two sets of molding cavities. Each set of molding cavities includes multiple mold slots. Each mold slot is equipped with a liftable bottom mold (14). A material unloading swinging component that drives the bottom mold (14) to move is provided directly below each set of molding cavities. The unloading swing component includes a lifting cylinder (19) mounted on the base plate. The pushing end of the lifting cylinder (19) is equipped with a motion plate (20). The upper surface of the motion plate (20) is connected to multiple swing rods (29) through the same drive shaft. The end of each swing rod (29) is fixed to the bottom surface of the corresponding bottom mold (14). Between the two sets of material feeding swing parts, there is a fitting wiping part for rotating and cleaning the inner wall of the bottom mold (14); The wiping component includes a fixing frame (24) fixed to the base plate. Multiple cylindrical blocks (25) are rotatably provided on the upper part of the fixing frame (24). Cleaning components (26) are limited and slidable at both ends of the cylindrical blocks (25). Each bottom mold (14) has a limiting side plate (23) embedded in both end faces to restrict the side of the glass bottle, and a heat insulation plate is fixedly provided on the bottom surface of each bottom mold (14). An electromagnet is fixedly installed on the side of the heat insulation plate away from the bottom mold (14) to push the corresponding limiting side plate (23) to move.

2. The blow molding package for glass bottle production according to claim 1, characterized in that, Each cylinder (25) is fixedly fitted with a gear (28) on its outside. Two adjacent gears (28) are meshed together, and one of the gears (28) at the end is driven by a servo motor.

3. The glass bottle blowing apparatus according to claim 2, characterized in that, The inner surfaces of both ends of the cylindrical block (25) are provided with limiting shafts (27) that are fixed to the center surface of the cleaning component (26). The inner cavity of the cylindrical block (25) is connected to a moving block (30) by an electromagnet. The moving block (30) abuts against the inclined surface on the side of the limiting shaft (27). The limiting shaft (27) extends into the outer part of one end of the cylinder (25) and is fitted with a spring.

4. The glass bottle blowing apparatus according to claim 3, characterized in that, A material drop trough (18) is provided on one side of the bottom plate adjacent to each set of material drop swinging parts. A downward recessed groove (22) is provided at the entrance of the material drop trough (18). The groove (22) is used to restrict the rotation of the side plate (23) into the trough. The bottom of the inner cavity of the material drop trough (18) is inclined downward. The end of the discharge chute (18) is provided with a transfer belt (21) for conveying glass bottles.

5. The glass bottle blowing apparatus according to claim 4, characterized in that, The surface of the middle substrate (1) is provided with two sets of slots, each set of slots including multiple through slots (17), each through slot (17) communicating with the corresponding mold slot; A reciprocating cylinder (16) is installed on the lower surface edge of the middle substrate (1). The pushing end of the reciprocating cylinder (16) is connected to a ash discharge pipe (15) that slides along the bottom surface of the middle substrate (1). The upper end of the ash discharge pipe (15) is provided with several air inlets, which are connected to the corresponding through slots (17). The lower end of the ash discharge pipe (15) is connected to the ash collection box.

6. The glass bottle blowing apparatus according to claim 5, characterized in that, The base plate, the middle base plate (1) and the top plate (2) are fixedly connected by the same vertical guide post in four directions; The feeding unit includes two slide rails (3), each slide rail (3) is fixedly connected to a vertical guide post in the corresponding direction, and a sliding plate (4) slides on the slide rail (3). Multiple claw blocks (5) for gripping liquid in glass bottles are installed on the lower surface of the sliding plate (4). The upper part of the claw block (5) is provided with a clamping area, which clamps the bottle mouth formed by the initial mold. The lower part of the claw block (5) is provided with an enclosing area, which surrounds and supports the outer periphery of the bottle body formed by the initial mold.

7. The glass bottle blowing apparatus according to claim 6, characterized in that, The upper surface of the upper top plate (2) is provided with a high-pressure air pump (11), and a central gear (9) is installed in the middle of the lower surface of the upper top plate (2). Both sides of the central gear (9) are meshed with worm gears (10) through transmission gears, and the thread directions of the two worm gears (10) are consistent. Each worm (10) is meshed with multiple worm wheels (8), and each worm wheel (8) is threaded with an air blowing pipe (7) in the middle. The air blowing pipe (7) passes through the upper top plate (2) and is connected to the air outlet of the high-pressure air pump (11) through a hose. The initial height of the air blowing pipe (7) is higher than the sliding height of the sliding plate (4).

8. The glass bottle blowing apparatus according to claim 7, characterized in that, The upper surface of the mold base (6) is limited to sliding two sets of upper pressure molds (12) for forming the mouth of the glass bottle, and the two sets of upper pressure molds (12) work simultaneously. The upper surface of the mold base (6) is provided with two sets of drive parts (13), each set of drive parts (13) includes a positive thread and a negative thread, and both sets of drive parts (13) are threadedly connected to the upper mold (12).

9. The forming process of a blow molding apparatus for glass bottle production according to claim 8, characterized in that, The molding process includes the following steps: Step 1: The two upper molds (12) are in the open state. The sliding plate (4) slides to the top of a set of forming cavities. The claw block (5) opens and falls into the corresponding mold groove. The two upper molds (12) close. A set of unloading swing parts pushes the bottom mold (14) into the mold groove. The corresponding upper mold (12) presses the bottle mouth of the glass bottle preform. The other set of forming cavities does not contain the glass bottle preform. Step 2: Multiple air blowing pipes (7) on both sides simultaneously descend to the same height as the bottle mouth. Multiple air blowing pipes (7) on one side blow air to form the glass bottle blank. The ash discharge pipe (15) slides on the bottom surface of the middle base plate (1) to block the through groove (17) below the forming cavity of the other set of forming cavities without glass bottle blanks. Multiple air blowing pipes (7) on the other side blow air to clean the upper mold (12) and the inner wall of the mold groove, and the ash discharge pipe (15) takes away the waste. Step 3: The shaped glass bottle carried by the bottom mold (14) is pushed down by the lifting cylinder (19). The limiting side plates (23) at both ends extend upward and restrict the two sides of the shaped glass bottle. The shaped glass bottle is transferred to the dropping trough (18) by rotating the swing rod (29) counterclockwise by 90 degrees and then transported to the next process by the transfer belt (21). Step 4: Then the swing arm (29) rotates 180 degrees clockwise. By pushing the moving block (30), the limiting shaft (27) slides along the end face of the rotating cylinder (25). The inner wall surface of the bottom mold (14) is rotated and cleaned by the rotating cleaning component (26). The bottom mold (14) of another set is unloaded and cleaned in the same way.

Images