Dual-motor air-blowing mechanism and air-blowing bottom sealing process

Abstract

A dual-motor air-blowing mechanism and an air-blowing bottom sealing process belong to the field of glass machinery technology. The dual-motor air-blowing mechanism comprises a piston rod mechanism, an air-blowing arm (1) is mounted on the piston rod mechanism, and an air-blowing head is arranged at the end of the air-blowing arm (1). The dual-motor air-blowing mechanism is characterized in that a box body (14) is arranged, a lifting drive mechanism and a swing drive mechanism are arranged on the box body (14), the piston rod mechanism is arranged in the box body (14), the lifting motor (7) in the lifting drive mechanism is connected to the piston rod mechanism and drives the piston rod mechanism to lift and lower axially, and the swing motor (8) in the swing drive mechanism is connected to the piston rod mechanism and drives the piston rod mechanism to rotate. In the dual-motor air-blowing mechanism and the air-blowing bottom sealing process, the lifting and lowering and swinging composite motions of the air-blowing arm are divided into independent vertical lifting and horizontal swinging by the lifting drive mechanism and the swing drive mechanism, thereby eliminating the limitation of the air-blowing arm in the traditional technology that realizes composite motion by the cam mechanism.

Description

Technical Field

[0001] The invention discloses a double-motor air-blowing mechanism and an air-blowing bottom sealing process, belonging to the technical field of glass machinery. Background Art

[0002] Bottle making machine is a mechanical equipment used to make glass bottles. The molten glass droplets are blown or pressed into a prototype bottle with the bottle mouth facing downward in the primary mold, and then turned into a forming mold and blown into a molded bottle with the bottle mouth facing upward. Blowing in the primary mold is the blow-blowing process, and pressing in the primary mold is the press-blowing process.

[0003] For the blow-blow method, after the glass droplets are dripped into the primary mold, an air blowing operation is required, the purpose of which is to speed up the speed of the droplets soaking into the mouth mold so as to form the mouth mold. The specific process is as follows: the funnel first moves to the upper port of the primary mold, and under the guidance of the funnel, the droplets drip into the primary mold, and then the air blowing head is moved to the upper port of the funnel under the drive of the air blowing arm, and air is blown into the primary mold to make the droplets enter the mouth mold to form the bottle mouth, and then the air blowing head and the funnel are transferred successively, and after the funnel is transferred, the air blowing head is transferred to the upper port of the primary mold again. Then, the reverse blowing mechanism located at the bottom of the primary mold blows air into the primary mold, so that the droplets fill the inner cavity of the primary mold to form a prototype bottle blank. At this time, the air blowing head located at the upper port of the primary mold also serves as a bottom sealing mechanism to achieve the bottom sealing of the prototype bottle blank.

[0004] When the air-blowing head moves between the initial position and the air-blowing position, it is a composite motion of swinging and lifting at the same time. In the prior art, the composite action of the air-blowing head is generally realized by a cam mechanism, such as the technical solution disclosed in the Chinese utility model patent with application number: 201620357567.9, application date: April 26, 2016, and patent name: "Servo funnel, air-blowing, and positive air-blowing transmission mechanism", and the technical solution disclosed in the Chinese invention patent with application number: 202211078768.1, application date: September 5, 2022, and patent name: "Bottle making machine air-blowing bottom sealing mechanism".

[0005] However, the prior art including the above technical solution generally has the following defects: since the prior art generally adopts a mechanical cam to realize the motion curve of lifting and swinging, the specific stroke of the lifting and swinging of the air-blowing arm cannot be flexibly adjusted. The problem caused by this defect is: (1) It will increase the time of the entire bottle making process. As can be seen from the above, the funnel needs to be transferred from the upper port of the prototype mold to achieve the interval between air blowing and bottom sealing through the air blowing head. Therefore, when the air blowing head is sealing the bottom, it needs to be further lowered in the vertical direction compared to when it is blowing. This process greatly increases the complexity of the cam result. At the same time, since the air blowing arm needs to use the cam mechanism to achieve compound motion, after the air blowing head is completed, the air blowing arm must first perform a compound motion of rising and swinging, and then perform a compound motion of descending and swinging to seal the bottom after the funnel is transferred to the origin. Therefore, the whole process takes a long time. For the production of some glass bottles made of materials that cool down quickly (such as high borosilicate), it is easy to fail to make bottles smoothly due to the long time, which reduces the qualified rate of the products.

[0006] (2) For some bottles with special shapes, it is difficult for bottle-making machines of normal specifications to achieve this, such as wine bottles. The bottom of the common wine bottles on the market currently bulges upward, forming a tip inside the bottle, forming a "crown bottom" structure. The crown bottom can improve the stability of the wine bottle structure and strengthen the bottle body. Especially for sparkling wine, the crown bottom is conducive to making the pressure brought to the wine bottle by carbon dioxide more evenly distributed, enhancing the stability and pressure resistance of the wine bottle. At the same time, the crown bottom can allow these sediments to accumulate at the bottom, making it difficult to pour out when pouring the wine, reducing the impact of the sediment on the appearance and taste of the wine. Therefore, in the prior art, when making wine bottles by bottle-making machines, a tip is set at the bottom of the air-sucking head in the structure, and generally a "crown bottom" structure is formed when the bottom is sealed. In the process flow, when the air-blowing arm is sealing the bottom, since the funnel has been moved away from the upper port of the initial mold, the air-blowing arm must further descend vertically after completing the above-mentioned composite movement of descent and swinging and moving to the upper port of the initial mold to compensate for the distance after the funnel turns. As a result, the structure of the entire cam mechanism is too complicated, and the qualified rate often decreases due to insufficient vertical descent stroke in the latter section. Summary of the invention

[0007] The technical problem to be solved by the present invention is: to overcome the shortcomings of the prior art and provide a method for dividing the composite motion of lifting and swinging of an air-blowing arm into independent vertical lifting and horizontal swinging through a lifting drive mechanism and a swinging drive mechanism, thereby eliminating the limitations of the dual-motor air-blowing mechanism and the air-blowing bottom sealing process in traditional technology when the air-blowing arm realizes the composite motion through a cam mechanism.

[0008] The technical solution adopted by the present invention to solve its technical problem is: the dual-motor air-blowing mechanism includes a piston rod mechanism, an air-blowing arm is installed on the piston rod mechanism, and an air-blowing head is arranged at the end of the air-blowing arm. It is characterized in that: a box body is provided, and a lifting drive mechanism and a swinging drive mechanism are arranged on the box body. The piston rod mechanism is arranged in the box body, the lifting motor in the lifting drive mechanism is connected to the piston rod mechanism and drives the piston rod mechanism to lift and lower axially, and the swinging motor in the swinging drive mechanism is connected to the piston rod mechanism and drives the piston rod mechanism to rotate.

[0009] Preferably, the piston rod mechanism includes an inner shaft and a sleeve, the inner shaft is concentrically arranged inside the sleeve, the inner shaft and the sleeve are axially slidingly arranged, and the inner shaft and the sleeve are relatively stationary in the circumferential direction, the lifting motor is connected to the inner shaft, the swing motor is connected to the sleeve, the inner shaft passes through the box and is connected to the air-blowing arm.

[0010] Preferably, the inner shaft is a spline shaft, the shaft sleeve is a spline cylinder, and the spline shaft and the spline cylinder are connected via splines.

[0011] Preferably, gear teeth are provided on the circumference of the upper end of the sleeve to form a driven pulley, and the driving pulley installed on the motor shaft of the lifting motor is connected to the driven pulley through a synchronous belt.

[0012] Preferably, a guide shaft parallel to the piston rod mechanism is provided at the lower part of the box body, a first swing arm is rotatably connected to the bottom of the guide shaft, a second swing arm is fixed to the bottom of the piston rod mechanism, and the first swing arm and the second swing arm are rotatably connected to the air flapping arm at the same time.

[0013] Preferably, the air fluttering head arranged at the end of the air fluttering arm is a floating air fluttering head, and the air source inlet in the air fluttering arm is connected to the air fluttering channel in the floating air fluttering head.

[0014] Preferably, the floating air-blowing head includes a blind head, a valve body is arranged in the center hole of the blind head, a piston is arranged on the upper part of the valve body, a die head is arranged on the bottom of the valve body, the upper part of the die head is stuck at the lower port of the blind head, and the air-blowing channel is axially opened in the blind head, and the air-blowing channel extends downward to the gap between the valve body and the blind head.

[0015] Preferably, a bushing is arranged in the center hole of the blind head, and a spring is also sleeved on the outside of the valve body, and the spring is located between the bushing and the piston.

[0016] An air-blowing bottom sealing process, characterized in that it comprises the following steps: Step 1, the air-blowing arm moves to the air-blowing position; The swing motor works, driving the air-blowing arm to swing through the piston rod mechanism, and the lifting motor works at the same time as the swing motor, or later than the swing motor, so that the air-blowing head reaches the top of the primary mold and fits with the funnel located at the upper end of the primary mold; Step 2, puffing air; The air source enters the primary mold through the air head, pushing the glass droplets into the die at the bottom of the primary mold; Step 3, the air blowing head rises vertically; Only the lifting motor works, and the piston rod mechanism drives the air-blowing head to rise vertically, leaving space for the transfer of the funnel, and the funnel is transferred from the upper port of the primary mold; Step 4, the air blowing head descends vertically; Only the lifting motor works, and the piston rod mechanism drives the air blowing head to descend vertically, and the air blowing head fits with the upper end of the primary mold to reach the bottom sealing process position; Step 5, back cover; The material droplets are back-blown by the back-blowing mechanism at the bottom of the primary mold, and the material droplets form a prototype bottle in the primary mold.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In this dual-motor air-blowing mechanism, the composite motion of the air-blowing arm's lifting and swinging is divided into independent vertical lifting and horizontal swinging through a lifting drive mechanism and a swinging drive mechanism, eliminating the limitation of the air-blowing arm in traditional technology that realizes composite motion through a cam mechanism.

[0018] When the dual-motor air-blowing mechanism is used to implement the air-blowing bottom sealing process, since the vertical lifting and horizontal swinging are relatively independent, when the bottle is made by the blow-blowing process, the transfer of the funnel can be assisted only by the lifting of the air-blowing arm, and the funnel can reach the bottom sealing process position after the transfer, thereby improving the efficiency of the entire process and reducing the complexity of the mechanical mechanism.

[0019] When the dual-motor air-blowing mechanism is used to implement the air-blowing bottom sealing process, since the air-blowing arm can be raised and lowered independently, the problem of low yield rate caused by limited travel of the air-blowing head when manufacturing glass bottles with a crown bottom structure in the prior art is overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the dual-motor air-blowing mechanism.

[0021] Figure 2 for Figure 1 Left view of .

[0022] Figure 3 for Figure 1 Enlarged view of the AA section.

[0023] Figure 4 for Figure 1 Enlarged cross-sectional view along the BB axis after omitting the gas distribution box.

[0024] Figure 5 for Figure 2 Enlarged CC section view.

[0025] Figure 6 This is a schematic diagram of the floating air-blowing head structure of the dual-motor air-blowing mechanism.

[0026] Among them: 1, air-blowing arm 2, guide shaft 3, screw 4, spline cylinder 5, screw nut 6, driven pulley 7, lifting motor 8, swing motor 9, lifting coupling 10, reducer 11, swing coupling 12, box cover 13, driving pulley 14, box body 15, spline shaft 16, air path distribution box 17, air source inlet 18, synchronous belt 19, tensioning bolt 20, first swing arm 21, second swing arm 22, pin 23, swing pivot 24, piston 25, piston nut 26, valve body 27, piston ring 28, spring 29, exhaust hole 30, blind head 31, die head 32, bushing 33, exhaust groove 34, air-blowing channel. DETAILED DESCRIPTION

[0027] Figures 1 to 5 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1 to 6 The present invention is further described.

[0028] Embodiment 1: like Figure 1~2 As shown, the dual-motor air-blowing mechanism includes a box body 14, which includes a vertically arranged lifting transmission box and a swing transmission box. The lifting transmission box and the swing transmission box are arranged integrally, and an air path distribution box 16 is fixed to the side of the lifting transmission box. The air path distribution box 16 is a well-known component in the matrix bottle making machine, and its structure and function are common knowledge in the field, which will not be repeated here.

[0029] The swing transmission box is located at the upper end of the lifting transmission box. A box cover 12 is provided at the upper end of the swing transmission box, and a lifting motor 7 is provided on the upper surface of the box cover 12. The motor shaft of the lifting motor 7 passes through the box cover 12 and enters the swing transmission box. The motor shaft of the lifting motor 7 faces downward to the upper end of the lifting transmission box, and the motor shaft of the lifting motor 7 is connected to the lead screw 3 through the lifting coupling 9 in the swing transmission box.

[0030] A spline shaft 15 is provided in the lifting transmission box. The spline shaft 15 is a hollow structure. The spline shaft 15 is sleeved on the outside of the lead screw 3. A lead screw nut 5 is coaxially fixed at the upper end of the spline shaft 15. The lead screw nut 5 is threadedly connected to the lead screw 3. A spline cylinder 4 is also provided in the lifting transmission box. The spline cylinder 4 is located between the spline shaft 15 and the lifting transmission box. The spline cylinder 4 and the spline shaft 15 are connected through a spline structure. The bottom of the spline cylinder 4 extends to the lower end of the lifting transmission box. A sealing structure is provided between the spline cylinder 4 and the lower end of the lifting transmission box, and between the spline cylinder 4 and the spline shaft 15.

[0031] The lower end of the spline shaft 15 passes through the lower port of the lifting transmission box downwards and extends to the lower part of the lifting transmission box, and the upper end of the spline cylinder 4 passes through the upper port of the lifting transmission box upwards and extends into the swing transmission box. Figure 3 The outer ring at the upper end of the spline cylinder 4 is provided with gear teeth to form a driven pulley 6, and a driving pulley 13 is provided on the side of the driven pulley 6. The driving pulley 13 and the driven pulley 6 are connected by a synchronous belt 18 to form a synchronous belt mechanism. A tensioning bolt 19 is also provided on the side of the swing transmission box. The tensioning bolt 19 penetrates the wall of the swing transmission box and enters the box, and abuts against the outer surface of the synchronous belt 18. By adjusting the depth of the tensioning bolt 19 entering the swing transmission box, the tension of the synchronous belt 18 can be adjusted.

[0032] A reducer 10 is also provided on the upper surface of the box cover 12. The reducer 10 is located at the side of the lifting motor 7. The swing motor 8 is fixed on the upper part of the reducer 10, and the motor shaft of the swing motor 8 is coaxially fixed with the input shaft of the reducer 10. The output shaft of the reducer 10 passes through the box cover 12 downward and enters the swing transmission box, and is coaxially fixed with the axle of the driving pulley 13 through the swing coupling 11. The lower part of the axle of the driving pulley 13 is rotatably connected with the swing transmission box, and a bearing is provided at the relative rotation position, and a bearing is provided at the relative rotation position between the driven pulley 6 and the swing transmission box.

[0033] When the swing motor 8 rotates, the motor shaft drives the reducer 10 to rotate. When the output shaft of the reducer 10 rotates, the spline cylinder 4 is driven to rotate through the synchronous belt mechanism. Since the spline cylinder 4 and the spline shaft 15 are connected by splines, the spline shaft 15 is further driven to rotate. When the lifting motor 7 rotates, the lifting coupling 9 drives the lead screw 3 to rotate. Since the lead screw 3 is threadedly connected to the spline shaft 15 through the lead screw nut 5, and the spline cylinder 4 and the spline shaft 15 are connected by the spline shaft, the self-rotation of the spline shaft 15 is limited. Therefore, when the lead screw 3 rotates, the spline shaft 15 can be driven to rise and fall axially. In addition, the swing motor 8 and the lifting motor 7 can work separately to realize the composite movement of the spline shaft 15 to rise (or fall) and rotate, or they can work separately to realize the rise and fall of the spline shaft 15, as well as the rotation.

[0034] Combination Figures 4 and 5A guide shaft 2 is provided at the lower part of the lifting transmission box, and the guide shaft 2 is located on one side of the spline shaft 15, and the guide shaft 2 and the spline shaft 15 are parallel to each other. A first swing arm 20 is rotatably provided at the bottom of the guide shaft 2, and a second swing arm 21 is provided at the bottom of the spline shaft 15, and the second swing arm 21 is fixedly connected to the spline shaft 15. The first swing arm 20 and the second swing arm 21 are parallel to each other, and an air-fluttering arm 1 is provided at the far ends of the first swing arm 20 and the second swing arm 21, and a pin shaft 22 and a swing pivot shaft 23 are provided on the surface of the air-fluttering arm 1, and the far end of the first swing arm 20 is rotatably connected to the pin shaft 22, and the far end of the second swing arm 21 is rotatably connected to the swing pivot shaft 23.

[0035] As can be seen from the above, a parallelogram structure is formed with the guide shaft 2, the spline shaft 15, the pin shaft 22 and the swing pivot 23 as the end points, and the first swing arm 20, the second swing arm 21, the air-blowing arm 1 and the box body 14 as the sides. The spline shaft 15 is the power end. When the spline shaft 15 rotates, it can drive the swing. An air-blowing head (not shown in the figure) is arranged at the end of the air-blowing arm 1. An air source inlet 17 connected to the air path in the air-blowing head is opened at the end of the air-blowing arm 1. The air path distribution box 16 is connected to the air source inlet 17. The air source is sent into the air-blowing head through the air source inlet 17, so that the droplets in the primary mold can be blown by the air-blowing head.

[0036] The air-blowing bottom sealing process realized by the above-mentioned dual-motor air-blowing mechanism is as follows: Assume the following data of the dual-motor air-blowing mechanism: the lead screw 3 is left-handed, the air-blowing arm 1 swings counterclockwise when it descends, the lead of the lead screw 3 is 8mm, the speed ratio of the reducer 10 is 8:1, the driven pulley 6 has 36 teeth, and the number of teeth of the active pulley 13 is 15. Before the air-blowing arm 1 moves, the funnel has moved to the upper port of the primary mold, and under the guidance of the funnel, the material droplets have dripped into the primary mold. In order to make a concave bottom when making wine bottles, the air-blowing head can be designed to be convex. From the safe position to the bottom sealing position, the required straight stroke is 20mm more than the traditional cam straight stroke, that is, 70mm; the swing straight stroke of 60mm and the swing angle of 36° are sufficient.

[0037] The dual-motor air blowing mechanism manufactures a wine bottle with a crown bottom structure according to the above parameters using a conventional blowing method, and performs the following steps: Step 1, the air-blowing arm 1 moves to the air-blowing position; From the safe position to the air-blowing position, the swing motor 8 rotates counterclockwise for 1.92 circles, the air-blowing arm 1 swings counterclockwise by 30° and is forced to drop by 0.8mm due to the structure of the screw nut 5. At the same time, the lifting motor 7 rotates clockwise for 7.4 circles, causing the air-blowing arm 1 to drop by 59.2mm. At this time, the air-blowing head successfully reaches the top of the funnel, and the lifting motor 7 continues to rotate clockwise for 2.5 circles on the basis of rotating 7.4 circles, and the air-blowing head is pressed against the funnel, reaching the air-blowing process position.

[0038] Step 2, puffing air; The air source is sent into the air source inlet 17 through the air distribution box 16, and the air source enters the primary mold to push the glass droplet into the mouth mold at the bottom of the primary mold.

[0039] Step 3, the air blowing head rises vertically; Since the dual-motor air-blowing mechanism of the present application does not adopt the traditional mechanical cam structure, there is no need to rise and swing the air-blowing head according to the original curve. The lifting motor 7 is directly rotated counterclockwise for 6.25 circles and rises 50mm, and the funnel can rise and swing back to a safe position.

[0040] Step 4, the air blowing head descends vertically; Then the lifting motor 7 rotates clockwise for 12.5 turns, the air blowing head descends 100 mm, and the air blowing head is pressed tightly against the primary mold, that is, the bottom sealing process position is reached.

[0041] Step 5, back cover; The back-blowing mechanism at the bottom of the primary mold is used to back-blow the material droplets, so that the material droplets form a prototype bottle in the primary mold, and the prototype bottle forms a crown bottom structure under the action of the bottom tip of the air blowing head.

[0042] Step 6, resetting the air flutter head; The lifting motor 7 rotates counterclockwise for 0.25 turns. After the air-blowing head is separated from the initial mold, the swing motor 8 starts to rotate clockwise for 1.92 turns. The lifting motor 7 rotates a total of 160.25 turns, causing the air-blowing head to rise 130 mm in the vertical direction, swing 30°, and return to its original position.

[0043] Embodiment 2: The difference between this embodiment and embodiment 1 is that in this embodiment, a floating air blowing head is installed at the end of the air blowing arm 1, and the floating air blowing head is used to complete the air blowing bottom sealing operation.

[0044] like Figure 6 As shown, the floating air flutter head includes a bulkhead 30, the center of the bulkhead 30 is through from top to bottom, an annular stopper is provided in the middle of the central cavity of the bulkhead 30, and a bushing 32 is clamped on the stopper. A valve body 26 is axially provided at the center of the bulkhead 30, the bottom of the valve body 26 is a conical die head 31, and the upper part of the die head 31 is clamped at the lower port of the bulkhead 30. An exhaust hole 29 that radially penetrates the bulkhead 30 is also provided on the upper part of the bushing 32, and an exhaust groove 33 is also provided on the lower part of the bushing 32, and the exhaust groove 33 extends to the lower part of the bulkhead 30.

[0045] The valve body 26 extends upward to the upper end of the blind head 30. A piston 24 is arranged on the upper part of the valve body 26. A piston nut 25 is installed on the top of the valve body 26. The piston 24 is installed on the upper part of the valve body 26 under the limiting effect of the piston nut 25. An annular groove is provided on the outer surface of the piston 24, and a piston ring 27 is arranged in the groove. A spring 28 is also set on the outside of the valve body 26, and the spring 28 is located between the bushing 32 and the piston 24. When the spring 28 is not affected by external force, it is in a compressed state, and the die head 31 is fitted with the bottom of the blind head 30 by its own elastic force.

[0046] An air fluttering channel 34 is also axially provided in the bulkhead 30. The air fluttering channel 34 is located on one side of the central cavity of the valve body 26. The air fluttering channel 34 extends axially downward to the lower part of the stopper and communicates with the space between the valve body 26 and the bulkhead 30. When the spring 28 is not affected by external force, it is in a compressed state, and the die head 31 is fitted with the bottom of the bulkhead 30 by its own elastic force. At this time, the lower port of the bulkhead 30 is closed, and the outlet of the air fluttering channel 34 is closed. When the external pressure (air pressure) pushes the piston 24, when the external pressure is greater than the elastic force of the spring 28, the spring 28 is further compressed to make the valve body 26 descend, and the die head 31 is separated from the lower port of the bulkhead 30. At this time, the air fluttering gas source is ejected from the bottom of the bulkhead 30 through the air fluttering channel 34 to achieve air fluttering. After the air fluttering is completed, the external pressure on the valve body 26 is cancelled, the piston 24 is reset, and the lower port of the bulkhead 30 is closed, and the bottom sealing operation can be performed immediately.

[0047] The specific steps are as follows: Step 1', the air-blowing arm 1 moves to the air-blowing position; From the safe position to the air-blowing position, the swing motor 8 rotates counterclockwise for 1.92 turns, the air-blowing arm 1 swings counterclockwise by 30° and is forced to drop by 0.8mm due to the structure of the screw nut 5. At the same time, the lifting motor 7 rotates clockwise for 7.4 turns, causing the air-blowing arm 1 to drop by 59.2mm. At this time, the floating air-blowing head successfully reaches the top of the prototype mold. On the basis of rotating 7.4 turns, the lifting motor 7 continues to rotate clockwise for 1.875 turns, so that the distance between the floating air-blowing head and the prototype mold is 5mm, reaching the air-blowing process position.

[0048] Step 2, puffing air; The air source is sent into the air source inlet 17 through the air path distribution box 16, and the air source is further sent into the air channel 34 through the air source inlet 17. At this time, the pressure of the air source is greater than the elastic force of the spring 28, so that the spring 28 is further compressed, and the lower port of the blind head 30 is opened. The air source is ejected through the lower port of the blind head 30 and enters the primary mold, pushing the glass droplet to immerse into the mouth mold at the bottom of the primary mold.

[0049] Step 3, back cover; The lifting motor 7 continues to rotate clockwise for 0.625 turns, and the floating air-blowing head is pressed against the primary mold, that is, the bottom sealing process position is reached, and the droplets form a prototype bottle in the primary mold, and the prototype bottle forms a bottom-curved structure under the action of the bottom mold head 31 of the floating air-blowing head.

[0050] Step 4, resetting the air flutter head; The lifting motor 7 rotates counterclockwise for 0.25 turns. After the air-blowing head is separated from the initial mold, the swing motor 8 starts to rotate clockwise for 1.92 turns. The lifting motor 7 rotates a total of 9.9 turns, causing the floating air-blowing head to rise 80 mm in the vertical direction, swing 30°, and return to its original position.

[0051] Embodiment 3: The difference between this embodiment and embodiment 1 is that: a double-motor air blowing mechanism is used to produce glass bottles by a pressure-blowing method, which specifically includes the following steps: Step 1'', the air-blowing arm 1 moves to the air-blowing position; From the safe position to the air-blowing position, the swing motor 8 rotates counterclockwise for 2.4 turns, the air-blowing arm 1 swings counterclockwise by 45° and is forced to drop by 1mm due to the structure of the screw nut 5. At the same time, the lifting motor 7 rotates clockwise for 9.25 turns, causing the air-blowing arm 1 to drop by 74mm. At this time, the air-blowing head is pressed tightly against the primary mold, reaching the bottom sealing process position.

[0052] Step 2'', back cover; The punch at the bottom of the prototype mold moves upward into the prototype mold to form a prototype bottle.

[0053] Step 3'', resetting the air-blowing head; The lifting motor 7 rotates counterclockwise for 9.25 turns, and the swing motor 8 rotates clockwise for 2.4 turns at the same time. The air-blowing head rises 75 mm and swings 45 degrees to return to a safe position.

[0054] Embodiment 4: The difference between this embodiment and the first embodiment is that in this embodiment, the lifting motor 7 is realized by a linear motor, and the piston rod of the lifting motor 7 is rotatably connected with the spline shaft 15. Therefore, when the swing motor 8 drives the spline cylinder 4 to rotate through the synchronous belt mechanism, the spline shaft 15 can be driven to swing through the spline connection relationship between the spline cylinder 4 and the spline shaft 15, and when the lifting motor 7 is in motion, the spline shaft 15 can be directly driven to rise and fall.

[0055] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A dual-motor air-blowing mechanism, comprising a piston rod mechanism, an air-blowing arm (1) is mounted on the piston rod mechanism, and an air-blowing head is arranged at the end of the air-blowing arm (1), characterized in that: A box body (14) is provided, and a lifting drive mechanism and a swing drive mechanism are provided on the box body (14). The piston rod mechanism is provided in the box body (14). The lifting motor (7) in the lifting drive mechanism is connected to the piston rod mechanism and drives the piston rod mechanism to lift and lower axially. The swing motor (8) in the swing drive mechanism is connected to the piston rod mechanism and drives the piston rod mechanism to rotate.

2. The dual-motor air-blowing mechanism according to claim 1, characterized in that: The piston rod mechanism comprises an inner shaft and a shaft sleeve, wherein the inner shaft is coaxially arranged inside the shaft sleeve, the inner shaft and the shaft sleeve are axially slidably arranged, and the inner shaft and the shaft sleeve are relatively stationary in the circumferential direction, the lifting motor (7) is connected to the inner shaft, the swing motor (8) is connected to the shaft sleeve, and the inner shaft passes through the box body (14) and is connected to the air flapping arm (1).

3. The dual-motor air-blowing mechanism according to claim 2, characterized in that: The inner shaft is a spline shaft (15), the shaft sleeve is a spline cylinder (4), and the spline shaft (15) and the spline cylinder (4) are connected via splines.

4. The dual-motor air-blowing mechanism according to claim 2 or 3, characterized in that: Gear teeth are provided on the circumference of the upper end of the shaft sleeve to form a driven pulley (6), and a driving pulley (13) installed on the motor shaft of the lifting motor (7) is connected to the driven pulley (6) through a synchronous belt (18).

5. The dual-motor air-blowing mechanism according to claim 1, characterized in that: A guide shaft (2) parallel to the piston rod mechanism is provided at the bottom of the box body (14); a first swing arm (20) is rotatably connected to the bottom of the guide shaft (2); a second swing arm (21) is fixed to the bottom of the piston rod mechanism; and the first swing arm (20) and the second swing arm (21) are simultaneously rotatably connected to the air flapping arm (1).

6. The dual-motor air-blowing mechanism according to claim 1, characterized in that: The air fluttering head arranged at the end of the air fluttering arm (1) is a floating air fluttering head, and the air source inlet (17) in the air fluttering arm (1) is connected to the air fluttering channel (34) in the floating air fluttering head.

7. The dual-motor air-blowing mechanism according to claim 6, characterized in that: The floating air flutter head comprises a bulkhead (30), a valve body (26) is arranged in the central hole of the bulkhead (30), a piston (24) is arranged on the upper part of the valve body (26), a die head (31) is arranged on the bottom of the valve body (26), the upper part of the die head (31) is clamped at the lower port of the bulkhead (30), and an air flutter channel (34) is axially opened in the bulkhead (30), and the air flutter channel (34) extends downward to the gap between the valve body (26) and the bulkhead (30).

8. The dual-motor air-blowing mechanism according to claim 7, characterized in that: A bushing (32) is arranged in the central hole of the blind head (30), and a spring (28) is also sleeved on the outside of the valve body (26). The spring (28) is located between the bushing (32) and the piston (24).

9. A gas-blowing bottom sealing process implemented by using the dual-motor gas-blowing mechanism according to any one of claims 1 to 8, characterized in that: The steps include: Step 1, the air-blowing arm (1) moves to the air-blowing position; The swing motor (8) works, driving the air flapping arm (1) to swing through the piston rod mechanism, and the lifting motor (7) works simultaneously with the swing motor (8), or works later than the swing motor (8), so that the air flapping head reaches the top of the primary mold and fits with the funnel located at the upper end of the primary mold; Step 2, breathe in.

10. The air source enters the primary mold through the air head, pushing the glass droplets into the die at the bottom of the primary mold; Step 3, the air blowing head rises vertically; Only the lifting motor (7) works, driving the air-blowing head to rise vertically through the piston rod mechanism, leaving a transfer space for the funnel, and the funnel is transferred from the upper end of the primary mold; Step 4, the air blowing head descends vertically; Only the lifting motor (7) works, driving the air blowing head to descend vertically through the piston rod mechanism, and the air blowing head fits with the upper end of the primary mold to reach the bottom sealing process position; Step 5, back cover; The material droplets are back-blown by the back-blowing mechanism at the bottom of the primary mold, and the material droplets form a prototype bottle in the primary mold.

Images