Glass bottle blowing device

Abstract

The utility model relates to the field of glass bottle production, and discloses a glass bottle blowing device which comprises a rack and a turntable, the turntable is rotatably arranged on the rack, a plurality of stations are uniformly arranged on the turntable along the center, and each station comprises a prototype forming working condition, a heating working condition or a glass bottle forming working condition. And each station comprises a prototype mold, a transfer blowing mechanism and a forming mold from top to bottom. A first sealing section is arranged at the lower end of the prototype mold; the transfer blowing mechanism comprises a shell, a clamping device and a core shaft, wherein the clamping device is hinged to the air outlet end of the core shaft, and the clamping device and the core shaft form a flash forming cavity. When the station is in the prototype forming working condition, the clamping device is located in the first sealing section, and the flash forming cavity communicates with the prototype mold cavity. The formed prototype is directly clamped on the clamping device, meanwhile, the hardened glass layer is arranged on the surface of the prototype, the prototype turning and conveying difficulty is lowered, and meanwhile the requirement for the turning speed is low.

Description

Technical Field

[0001] The utility model relates to the field of glass bottle production, in particular to a glass bottle blowing device. Background Art

[0002] In the glass bottle and jar industry, due to problems such as insufficient stability, high failure rate, and low production efficiency during the production operation of bottle-making machinery, the further improvement of the production efficiency and product quality of the domestic glass bottle and jar industry has been severely restricted.

[0003] At present, Chinese Patent with the application number 201210594379.4 discloses a production method for 5-6 drops of a row-type bottle-making machine, including receiving and loading materials; forming the bottle mouth in a vacuum; reverse blowing; turning and transporting the preform; reheating and stretching; positive blowing; gripping the bottle; cooling and transporting, etc. It also discloses a row-type bottle-making machine composed of 26 parts such as a blank mold mechanism, a forming mold mechanism, a core pushing mechanism, and a mouth gripper. In the step of turning and transporting the preform, a glass bottle preform needs to be obtained through the blank mold mechanism, and then the mouth of the glass bottle preform is clamped and flipped by the mouth gripper to reach the forming mold mechanism to complete the forming work. During this process, the requirements for gripping the bottle by the mouth gripper are relatively high. When the mouth gripper grips the bottle, it should not be too high, too low, or the center is not correct. If it is too high, it is easy to cause the bottle edge to explode, black spots at the bottom of the edge, or offset mouth; if it is too low, it is easy to cause the bottle neck to explode, black spots on the neck, flat neck, squatting and offset bottom, and the upper limit of the outer diameter of the bottle body to exceed the standard. The position where the mouth gripper grips the bottle should be based on the upper plane of the mouth gripper, and it should grip between 0.5 - 1 mm below the bottle mouth edge; at the same time, the movement of the mouth gripper in and out should be stable to avoid the bottle sticking due to the bottle shaking in the mouth gripper fixture. The gripping action of the mouth gripper should be such that the bottle does not fall off when gripped. If it is too fierce, it is easy to cause the bottle neck to explode, the bottle edge to explode, flat mouth, and flat neck. The requirements for the equipment accuracy are relatively high, increasing the production cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a glass bottle blowing device to simplify the difficulty of turning and transporting the preform, thereby reducing the accuracy requirements of the equipment and the production cost.

[0005] To achieve the above object, the utility model adopts the following technical solutions: a glass bottle blowing device, including a frame and a turntable. The turntable is rotatably arranged on the frame. A number of workstations are evenly arranged on the turntable along the center of the turntable. Each workstation includes a preform forming working condition, a heating working condition or a glass bottle forming working condition. Each workstation from top to bottom includes a preform mold, a transfer blowing mechanism and a forming mold. The preform mold and the forming mold are slidably arranged on the turntable. The transfer blowing mechanism is rotatably arranged on the turntable between the preform mold and the forming mold and completes the switching of working conditions through the rotation of the transfer blowing mechanism. A preform mold cavity is arranged in the preform mold, and a first sealing section is arranged at the lower end of the preform mold. The transfer blowing mechanism includes a housing and a gripper. The housing is rotatably connected to the turntable. A mandrel is arranged in the housing. A through hole is arranged in the center of the mandrel. The mandrel includes an air outlet end and an air inlet end. The gripper is hinged to the air outlet end. When the workstation is in the preform forming working condition, the gripper is located in the first sealing section. The inner wall of the gripper and the outer wall of the air outlet end of the mandrel form a flash forming cavity, and the flash forming cavity is communicated with the preform mold cavity.

[0006] The beneficial effect of this solution is that during preform forming, the gripper of the transfer blowing mechanism is used as the bottom mold of the preform mold and the gripper is communicated with the preform mold. During forming, the preform is directly formed on the gripper, and there is no need to correct the clamping position through precise instruments, which simplifies the difficulty of preform turning and conveying. At the same time, the surface of the preform formed in this application has a hardened glass layer, and when turning and conveying, the requirement for the turning speed is relatively low.

[0007] Further, a feed inlet is arranged at the upper end of the preform mold. An air inlet hole is arranged on the side wall of the first sealing section. The air inlet hole is communicated with compressed air. It also includes a feed pipe. The feed pipe is fixedly arranged on the frame. The feed pipe includes a discharge port, and the discharge port is located above the movement track of the feed inlet of the preform mold.

[0008] Further, the air inlet end is fixedly connected with an end cover. The side wall of the end cover is provided with a hollowed-out air inlet part. When the workstation is in the glass bottle forming working condition, the end cover is located in the first sealing section, and the air inlet hole is communicated with the air inlet part.

[0009] Further, the gripper includes a clamping unit and an opening and closing unit. The clamping unit includes two symmetrically arranged gripper bodies. The two ends of the gripper body are respectively a driving end and a clamping end, and the middle part is hinged to the mandrel. The opening and closing unit includes an opening and closing rod, an opening and closing plate, a first opening and closing part and a second opening and closing part. An installation groove is arranged on the housing. One end of the opening and closing rod is hinged in the installation groove and abuts against the opening and closing plate, and the other end can move on a slope. The opening and closing plate is slidably arranged on the mandrel. Both the first opening and closing part and the second opening and closing part include a cylinder body and a piston rod. The piston rod divides the cylinder body into a rod chamber and a rodless chamber. The rodless chamber of the first opening and closing part is communicated with the rodless chamber of the second opening and closing part. The cylinder body of the first opening and closing part and the free end of the piston rod are respectively hinged to the driving end. The cylinder body of the second opening and closing part is fixedly arranged on the mandrel, and the free end of the piston rod of the second opening and closing part is fixedly connected with the opening and closing plate.

[0010] During the production process of glass bottles, it is necessary to spray cooling water or demolding agent, resulting in a relatively high humidity at the production site. At the same time, the molten glass continuously radiates heat outward, making the temperature at the site relatively high. In a high-temperature and high-humidity environment, it is difficult to use electronic components. In this application, through the combination of pneumatic components and mechanical structures, the opening and closing of the gripper are controlled. By setting a corresponding unloading part on the rack and linking the unloading part with the opening and closing unit, the force of the rotating turntable is borrowed to complete the unloading, reducing the use of electronic equipment and lowering the maintenance cost.

[0011] Furthermore, the clamping unit further includes a connecting piece and a guiding piece. One end of the connecting piece is fixedly connected to the gripper body, and the other end is hinged to the guiding piece. The guiding piece is slidably arranged on the mandrel.

[0012] Furthermore, a tension spring is fixed between the opening and closing plate and the mandrel. Under the action of the tension spring, the second opening and closing piece is in a contracted state, and the first opening and closing piece is in an extended state, so that the clamping state of the clamping end of the gripper remains stable, avoiding loosening during operation and affecting the forming quality of the glass bottle.

[0013] Furthermore, the forming die includes a forming die, and the forming die includes a side die. A second sealing section is arranged on the upper part of the side die. A sealing part is fixed at the upper end of the shell, and a rotary seal is arranged between the mandrel and the shell; when the working station is in the primary forming working condition, the end cover and the sealing part are both located in the second sealing section.

[0014] Furthermore, a heating part is also fixedly arranged on the rack. The heating part includes an arc heating section, and an air outlet is arranged on the upper surface of the arc heating section. The air outlet is communicated with combustible gas; when the working station is in the heating working condition, a glass bottle prototype is clamped on the gripper, and the glass bottle prototype rotates through the arc heating section. The glass bottle prototype is heated by an open flame, so that the hardened glass layer on the surface of the glass bottle prototype is quickly heated to the molten state, improving the production efficiency of the glass bottle.

[0015] Furthermore, it further includes an adjusting part. One end of the adjusting part is fixedly arranged on the rack, and the other end is inclined close to the working station and rotatably provided with a runner. The circle where the runner is located is tangent to the rotation trajectory when the lower end of the mandrel is in the vertical state. Thus, it is ensured that the working station is in the vertical state after passing through the adjusting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of an embodiment of the present invention;

[0017] Figure 2 It is a three-dimensional view of the working station heating working condition of the present invention

[0018] Figure 3 It is a three-dimensional view of the working station unloading working condition of the present invention;

[0019] Figure 4Explosion diagram of the transfer and blowing mechanism of the present utility model;

[0020] Figure 5 3D diagram of the transfer and blowing mechanism of the present utility model after removing the housing;

[0021] Figure 6 3D diagram of the prototype mold of the present utility model;

[0022] Figure 7 3D diagram of the forming mold of the present utility model;

[0023] Figure 8 Schematic diagram of the working condition of prototype forming at the station of the present utility model;

[0024] Figure 9 Schematic diagram of the working condition of glass bottle forming at the station of the present utility model. Detailed implementation manners

[0025] The following is a further detailed description through specific implementation manners:

[0026] The reference numerals in the accompanying drawings of the specification include: upper turntable 111, middle turntable 112, lower turntable 113, feed pipe 12, heating part 13, adjusting part 14, feeding unit 21, prototype mold body 211, air inlet hole 2111, prototype mold rotating part 2112, prototype mold hinged part 2113, first sealing section 2114, prototype mold opening and closing driving part 212, forming unit 22, side mold 221, side mold rotating part 2211, side mold hinged part 2212, second sealing section 2213, bottom mold 222, lifting driving part 2221, side mold opening and closing driving part 223, transfer and blowing mechanism 23, housing 231, rotating shaft 2311, installation groove 2312, sealing part 2313, core shaft 232, connecting part 2321, opening and closing rod 233, opening and closing part 2331, holder body 2341, guiding part 2342, first opening and closing part 2344, second opening and closing part 2345, connecting part 2346, opening and closing plate 2343, rotating seal 235, end cover 236, air inlet part 2361, driven bevel gear 2371, rotating motor 2372, glass bottle prototype 301, rough glass bottle 302, flash 31.

[0027] Embodiment

[0028] The embodiment is basically as shown in the attached Figures 1-8 shown, as Figures 1-9 shown, the glass bottle blowing device includes a frame, a turntable and a plurality of stations. In this embodiment, the number of stations is six, and the turntable is rotatably arranged on the frame, as Figure 1As shown in the figure, a heating part 13 and an adjusting part 14 are welded on the frame. The heating part 13 includes an arc heating section, an air inlet pipe, an air inlet valve and an igniter. An air outlet is arranged on the upper surface of the arc heating section. The air outlet is communicated with the air inlet pipe. A check valve is arranged between the arc heating section and the air inlet pipe. The air inlet pipe is communicated with combustible gas. In this embodiment, the combustible gas is natural gas. The air inlet valve is arranged on the air inlet pipe. The arc heating section is coaxial with the turntable. The igniter is one of a piezoelectric ceramic igniter or a pulse igniter. The ignition principle is the same as that of a natural gas stove igniter. When the air inlet valve is opened, the igniter generates an electric spark to ignite the natural gas overflowing from the air outlet. The details are not described here.

[0029] As Figure 1 shown, the adjusting part 14 is a rod-shaped structure with the lower end welded on the frame. The upper end is inclined close to the working station and is rotatably provided with a runner (not shown in the figure). The circle where the runner is located is tangent to the rotation trajectory of the lower end of the mandrel 232 when it is in the vertical state.

[0030] As Figure 1 shown, the turntable includes an upper turntable 111, a middle turntable 112 and a lower turntable 113 from top to bottom. The upper turntable 111, the middle turntable 112 and the lower turntable 113 can be an integral body or three relatively independent structures. In this embodiment, the upper turntable 111, the middle turntable 112 and the lower turntable 113 are independent structures. The upper turntable 111, the middle turntable 112 and the lower turntable 113 are all rotatably arranged on the frame. The feeding unit 21, the transfer and blowing mechanism 23 and the forming unit 22 are respectively arranged on the upper turntable 111, the middle turntable 112 and the lower turntable 113. During use, the upper turntable 111, the middle turntable 112 and the lower turntable 113 rotate at the same angular velocity to ensure that the relative positions of the feeding unit 21, the transfer and blowing mechanism 23 and the forming unit 22 in the same working station remain fixed. When the equipment installed on the upper turntable 111, the middle turntable 112 or the lower turntable 113 needs to be overhauled, the upper turntable 111, the middle turntable 112 and the lower turntable 113 can be misaligned to leave an operating space for convenient overhaul.

[0031] Each working station includes a prototype mold, a transfer and blowing mechanism 23 and a forming mold from top to bottom. The prototype mold and the forming mold are slidably arranged on the turntable. The transfer and blowing mechanism 23 is rotatably arranged on the turntable between the prototype mold and the forming mold. The switching of the prototype forming working condition, the heating working condition or the glass bottle forming working condition is completed by the rotation of the transfer and blowing mechanism 23.

[0032] The prototype mold includes two groups of prototype mold bodies 211 and a prototype mold opening and closing driving part 212. The prototype mold body 211 is in a semi-cylindrical structure. The two groups of prototype mold bodies 211 are surrounded to form a prototype mold cavity. A prototype mold rotating part 2112 and a prototype mold hinged part 2113 are welded on the prototype mold body 211. As Figure 5As shown in the figure, a first sealing section 2114 is welded or integrally formed at the lower end of the prototype mold. In this embodiment, the first sealing section 2114 is integrally formed with the prototype mold body 211. An air inlet hole 2111 is provided on the side wall of the first sealing section 2114. The rotating part 2112 of the prototype mold is rotatably connected to the frame. The opening and closing driving member 212 of the prototype mold is a telescopic driving member such as an oil cylinder or a cylinder. In this embodiment, the opening and closing driving member 212 of the prototype mold is a cylinder. The cylinder block of the cylinder is hinged to the frame, and the output device of the cylinder is hinged to the hinged part 2113 of the prototype mold. Thus, through the expansion and contraction of the opening and closing driving member 212 of the prototype mold, the prototype mold body 211 is driven to rotate around the connection point where the rotating part 2112 of the prototype mold is rotatably connected to the frame, completing the opening and closing work of the prototype mold. The air inlet hole 2111 is communicated with compressed air.

[0033] The transfer and blowing mechanism 23 includes a housing 231, a rotating unit, a blowing unit and a gripper. As Figure 3 shown, an installation groove 2312 is provided on the side wall of the housing 231. Rotating shafts 2311 are welded on both sides of the housing 231. The rotating shafts 2311 are rotatably arranged on the middle-layer turntable 112 and drive the housing 231 to rotate in the vertical direction through the rotating unit. A sealing part 2313 is adhered to the upper end of the housing 231.

[0034] As Figure 2 shown, the rotating unit includes a rotating motor 2372 and a driven bevel gear 2371. The rotating motor 2372 is fixed to the middle-layer turntable 112 by bolts. A driving bevel gear meshing with the driven bevel gear 2371 is key-connected to the output shaft. The driven bevel gear 2371 is key-connected to the rotating shaft 2311. The rotating motor 2372 is a servo motor. When in use, the driving bevel gear is driven to rotate by the rotating motor 2372, and the rotating shaft 2311 is driven to rotate by the driving bevel gear, thereby driving the housing 231 to rotate in the vertical direction.

[0035] The blowing unit includes a mandrel 232, an end cap 236 and a self-rotation driving structure (not shown in the figure). The mandrel 232 is rotatably arranged inside the housing 231. The end cap 236 is threadedly connected to the upper end of the mandrel 232. A rotating seal 235 is provided between the housing 231 and the mandrel 232. The rotating seal 235 is adhered to the mandrel 232 and fits with the inner wall of the housing 231. The self-rotation driving structure includes a turbine, a worm and a servo motor. Referring to Figure 3 the figure, the turbine is bolt-connected or integrally formed on the outer wall of the mandrel 232 below the rotating seal 235. The worm is rotatably arranged on the housing 231. The worm is adapted to the turbine. The servo motor is bolt-fixed to the outer wall of the housing 231 and connected to the worm through the output shaft. Thus, through the rotation of the servo motor, the worm and the turbine are driven to rotate, and further the mandrel 232 is driven to rotate inside the housing 231.

[0036] As Figure 8 、 Figure 9As shown, a through hole is provided at the center of the mandrel 232. A connecting portion 2321 is provided on the outer wall of the mandrel 232, and the lower end is an air outlet. As shown in the figure, an air inlet portion 2361 is provided in the middle of the end cap 236, and the air inlet portion 2361 is made by a hollowing process. As Figure 9 As shown, when the working station is in the glass bottle forming condition, that is, when the transfer and blowing mechanism 23 is in the upright state, the end cap 236 and the sealing portion 2313 are both located in the first sealing section 2114. At this time, the air inlet portion 2361 communicates with the air inlet hole 2111. With the cooperation of the rotating seal 235, compressed air enters the through hole in the mandrel 232 through the air inlet hole 2111 and the air inlet portion 2361 of the end cap 236, and flows out through the air outlet to perform the blowing and forming work of the rough glass bottle 302.

[0037] The gripper includes a gripper body 2341, a connecting member 2346, a guiding member 2342 and an opening and closing unit. As Figure 4 、 Figure 8 As shown, the gripper body 2341 includes a driving end and a clamping end. The middle of the gripper body 2341 is hinged on the connecting portion 2321, and the two ends are the driving end and the clamping end respectively. During use, the clamping end is driven to open and close by applying force to the driving end. When the clamping end closes, the inner side of the clamping end and the outer side of the air outlet together form a flash forming cavity. The upper end of the connecting member 2346 is welded to the gripper body 2341, and the lower end is hinged to the guiding member 2342. The guiding member 2342 is slidably arranged on the mandrel 232, so as to ensure that the opening and closing angles of the gripper body 2341 are the same through the limitation of the guiding member 2342.

[0038] As Figure 5As shown in the figure, the opening and closing unit includes an opening and closing plate 2343, an opening and closing rod 233, a first opening and closing member 2344 and a second opening and closing member 2345. The opening and closing plate 2343 is slidably arranged on the mandrel 232. A tension spring (not shown in the figure) is also welded or bolted between the mandrel 232 and the opening and closing plate 2343. The axis of the tension spring is parallel to the axis of the mandrel 232. The opening and closing rod 233 is rotatably arranged in the installation groove 2312. Both the first opening and closing member 2344 and the second opening and closing member 2345 are telescopic members such as air cylinders, oil cylinders or gas springs. In this embodiment, both the first opening and closing member 2344 and the second opening and closing member 2345 are gas springs. The gas spring includes a spring body and a piston rod. The piston rod is slidably arranged in the spring body and divides the spring body into a rod chamber and a rodless chamber. When the volume of the rodless chamber increases, the gas spring extends. The free ends of the spring body and the piston rod of the first opening and closing member 2344 are respectively hinged to the driving end of the gripper body 2341. The spring body of the second opening and closing member 2345 is bolted to the mandrel 232, and the free end of the piston rod is welded to the opening and closing plate 2343. The rodless chambers of the first opening and closing member 2344 and the second opening and closing member 2345 are in series. Under the action of the tension spring, the second opening and closing member 2345 is in a contracted state. When the second opening and closing member 2345 contracts, the first opening and closing member 2344 extends. The diameter of the piston rod of the second opening and closing member 2345 is larger than the diameter of the piston rod of the first opening and closing member 2344, so as to ensure that when the second opening and closing member 2345 extends and contracts a shorter distance, the first opening and closing member 2344 can extend and contract a larger distance.

[0039] The forming unit 22 includes a forming die, such as Figure 6 , Figure 7 As shown in the figure, the forming die includes a side die 221 and a bottom die 222. A side die rotating part 2211 and a side die hinged part 2212 are welded on the body of the side die 221. The side die rotating part 2211 is rotatably connected to the frame. The side die hinged part 2212 is hinged with a side die opening and closing driving member 223. The side die opening and closing driving member 223 is a telescopic driving member such as an oil cylinder or a gas cylinder. In this embodiment, the side die opening and closing driving member 223 is a gas cylinder. The cylinder body of the gas cylinder is hinged to the frame, and the output device of the gas cylinder is hinged to the side die hinged part 2212. Thus, through the extension and contraction of the side die opening and closing driving member 223, the body of the side die 221 is driven to rotate around the connection point where the side die rotating part 2211 is rotatably connected to the frame, and the opening and closing work of the side die 221 is completed. A second sealing section 2213 is arranged on the upper part of the side die 221. A sealing part 2313 is fixed at the upper end of the housing 231. A rotary seal is arranged between the mandrel 232 and the housing 231. When the transfer and blowing mechanism 23 is in an inverted state, both the end cover 236 and the sealing part 2313 are located in the second sealing section 2213. A lifting driving member 2221 is fixed at the lower end of the bottom die 222. In this embodiment, the lifting driving member 2221 is a gas cylinder. The cylinder body of the gas cylinder is bolted to the frame, and the output shaft is welded or bolted to the bottom die 222.

[0040] During use, the lower end of the push rod moves from one end of the slope to the other end, causing the front end of the push rod to rotate downward. By pushing the opening and closing plate 2343 downward through the opening and closing part 2331, the piston rod of the first opening and closing member 2344 is driven to move downward, and then the volume of the rodless cavity of the first opening and closing member 2344 becomes larger. Since the rodless cavities of the first opening and closing member 2344 and the second opening and closing member 2345 are in series, the increase in the volume of the rodless cavity of the first opening and closing member 2344 will inevitably drive the volume of the rodless cavity of the second opening and closing member 2345 to become smaller, so that the upper ends of the gripper body 2341 approach each other and the lower ends move away from each other, and then the lower end of the gripper body 2341 opens, facilitating the removal of the formed glass bottle.

[0041] The specific implementation process is as follows:

[0042] Initial forming: As Figure 8 shown, the working station is in the initial forming condition. The outer shell and the mandrel 232 are both in an inverted state. The flash forming cavity is communicated with the initial forming cavity. The end cover 236 and the sealing part 2313 are both clamped in the second sealing section 2213 of the forming die. The air inlet part 2361 of the end cover 236 is blocked by the second sealing section 2213 and the rotary seal 235, so that the lower end of the through hole inside the mandrel 232 is blocked. The glass raw material falls from the feed pipe 12 and enters the initial forming die through the bell mouth at the upper end of the initial forming die. Part of the glass raw material flows into the flash forming cavity formed by the gap between the mandrel 232 and the gripper body 2341 and hardens to form a flash 31. The flash 31 is clamped between the gripper body 2341 and the mandrel 232. The remaining part forms a cylinder under the action of the gravity of the glass raw material itself and the restriction of the initial forming die. At the same time, the surface of the glass raw material in contact with the initial forming die solidifies due to heat loss, and the glass bottle blank 301 is obtained.

[0043] Heating and melting: After the initial forming is completed, driven by the turntable, the working station rotates to the heating part 13 and switches to the heating condition. As Figure 2 shown, the initial forming die and the forming die are both opened. The rotation motor 2372 drives the housing 231 to rotate, thereby driving the mandrel 232 to rotate, and then driving the transfer and blowing mechanism 23 to rotate 90 - 135°, so that the glass bottle blank 301 is in a horizontal position or inclined downward above the heating part 13. The glass bottle blank 301 is heated by the open flame generated by the combustion of natural gas until the temperature of the surface of the glass bottle blank 301 rises to the same as the internal temperature of the glass bottle blank 301, and the hardened layer on the surface of the glass bottle blank 301 is heated to a molten state.

[0044] Adjustment and reset: After the heating is completed, the work station reaches the area where the adjustment part 14 is located driven by the turntable. The transfer and blowing mechanism 23 rotates to the vertical state. When the transfer and blowing mechanism 23 cannot be in the vertical state, the lower end of the transfer and blowing mechanism 23 will push against the front end of the adjustment part 14. Under the push of the adjustment part 14, the transfer and blowing mechanism 23 resumes the vertical state. At this time, the prototype mold and the forming mold are closed, and the upper and lower ends of the transfer and blowing mechanism 23 are clamped;

[0045] Forming: After the clamping is completed, the work station switches to the glass bottle forming working condition. As Figure 9 shown, compressed air enters the inside of the end cover 236 from the air inlet hole 2111 through the air inlet part 2361, and blows and forms the glass bottle prototype 301 through the through hole. The glass bottle prototype 301 expands under the action of the compressed gas and fits against the inner wall of the forming mold, and hardens due to heat loss;

[0046] Unloading: When the glass bottle is hardened, by rotating the opening and closing rod 233, the opening and closing part 2331 is rotated from the inclined state to the vertical state, pushing the opening and closing plate 2343 to slide downward on the core shaft 232, driving the second opening and closing part 2345 to extend, and then driving the first opening and closing part 2344 to contract, so that the clamping end of the chuck body 2341 expands, releasing the clamping of the flash 31, and completing the unloading work of the rough glass bottle 302. When the unloading of the rough glass bottle 302 is completed, under the action of the tension spring, the opening and closing plate 2343 returns to its original position, thereby driving the second opening and closing part 2345 to return to its original position, and then driving the chuck body 2341 to return to its original position.

[0047] Embodiment 2

[0048] The core shaft 232 is rotatably arranged inside the housing 231. The blowing unit further includes a self-rotation driving structure (not shown in the figure). The self-rotation driving structure includes a turbine, a worm and a servo motor. Refer to Figure 3 , the turbine is bolt-connected or integrally formed on the outer wall of the core shaft 232 below the rotating seal 235. The worm is rotatably arranged on the housing 231. The worm is adapted to the turbine. The servo motor is bolt-fixed on the outer wall of the housing 231 and connected to the worm through the output shaft. Thus, by the rotation of the servo motor, the worm and the turbine are driven to rotate, and then the core shaft 232 is driven to rotate inside the housing 231.

[0049] The materials of the end cover 236 and the chuck body 2341 can be the high-performance metal-based lubricating and wear-resistant materials disclosed in the paper published by the Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, in the journal "Research", "Significant Wear Resistance in Complex Concentrated Alloys with Nanoscale Structure and Composition Fluctuations", or other lubricating and wear-resistant materials, to ensure the sealing performance and smooth rotation of the end cover 236 during the self-rotation of the core shaft 232.

[0050] When heated and melted, the worm drives the turbine to rotate, thereby driving the mandrel 232 to rotate, so that the glass bottle blank 301 is heated during rotation, avoiding the bending of the molten glass under the action of gravity.

[0051] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that the technical means for solving problems in the above embodiments of the present invention can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can also be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. Glass bottle blowing device, characterized in that: It includes a frame and a turntable. The turntable is rotatably arranged on the frame. A number of workstations are evenly arranged on the turntable along the center of the turntable. Each workstation includes a preform forming working condition, a heating working condition or a glass bottle forming working condition. Each workstation includes a preform mold, a transfer and blowing mechanism, and a forming mold from top to bottom. The preform mold and the forming mold are slidably arranged on the turntable. The transfer and blowing mechanism is rotatably arranged on the turntable between the preform mold and the forming mold, and the switching of the working condition is completed by the rotation of the transfer and blowing mechanism. A preform mold cavity is arranged in the preform mold, and a first sealing section is arranged at the lower end of the preform mold. The transfer and blowing mechanism includes a housing and a gripper. The housing is rotatably connected to the turntable. A mandrel is arranged in the housing. A through hole is arranged in the center of the mandrel. The mandrel includes an air outlet end and an air inlet end. The gripper is hinged to the air outlet end. When the workstation is in the preform forming working condition, the gripper is located in the first sealing section, and the inner wall of the gripper and the outer wall of the air outlet end of the mandrel form a flash forming cavity, and the flash forming cavity is communicated with the preform mold cavity.

2. The glass bottle blowing device according to claim 1, wherein: A feed inlet is arranged at the upper end of the preform mold. An air inlet hole is arranged on the side wall of the first sealing section. The air inlet hole is communicated with compressed air. It also includes a feed pipe. The feed pipe is fixedly arranged on the frame. The feed pipe includes a discharge port. The discharge port is located above the movement track of the feed inlet of the preform mold.

3. The glass bottle blowing device according to claim 2, wherein: The air inlet end is fixedly connected with an end cap. An air inlet part with a hollowed-out structure is arranged on the side wall of the end cap. When the workstation is in the glass bottle forming working condition, the end cap is located in the first sealing section, and the air inlet hole is communicated with the air inlet part.

4. The glass bottle blowing device according to claim 3, wherein: The gripper includes a clamping unit and an opening and closing unit. The clamping unit includes two symmetrically arranged gripper bodies. The two ends of the gripper body are respectively a driving end and a clamping end, and the middle part is hinged to the mandrel. The opening and closing unit includes an opening and closing rod, an opening and closing plate, a first opening and closing part and a second opening and closing part. An installation groove is arranged on the housing. One end of the opening and closing rod is hinged in the installation groove and abuts against the opening and closing plate, and the other end can move on a slope. The opening and closing plate is slidably arranged on the mandrel. Both the first opening and closing part and the second opening and closing part include a cylinder body and a piston rod. The piston rod divides the cylinder body into a rod chamber and a rodless chamber. The rodless chambers of the first opening and closing part and the second opening and closing part are communicated. The cylinder body of the first opening and closing part and the free end of the piston rod are respectively hinged to the driving end. The cylinder body of the second opening and closing part is fixedly arranged on the mandrel, and the free end of the piston rod of the second opening and closing part is fixedly connected with the opening and closing plate.

5. The glass bottle blowing device according to claim 4, characterized in that: The clamping unit also includes a connecting piece and a guiding piece. One end of the connecting piece is fixedly connected with the gripper body, and the other end is hinged to the guiding piece. The guiding piece is slidably arranged on the mandrel.

6. The glass bottle blowing device according to claim 5, wherein: A tension spring is fixed between the opening and closing plate and the mandrel.

7. The glass bottle blowing device according to claim 6, characterized in that: The forming mold includes a side mold. A second sealing section is arranged at the upper part of the side mold. A sealing part is fixed at the upper end of the housing. A rotary seal is arranged between the mandrel and the housing. When the workstation is in the preform forming working condition, both the end cap and the sealing part are located in the second sealing section.

8. The glass bottle blowing device according to claim 7, wherein: A heating part is also fixedly arranged on the frame. The heating part includes an arc heating section. An air outlet is arranged on the upper surface of the arc heating section. The air outlet is communicated with a combustible gas. When the workstation is in the heating working condition, a glass bottle preform is clamped on the gripper, and the glass bottle preform rotates through the arc heating section.

9. The glass bottle blowing device according to claim 8, characterized in that: It further includes an adjusting part. One end of the adjusting part is fixedly arranged on the frame, and the other end inclines towards the working station and is rotatably provided with a runner. The circle where the runner is located is tangent to the rotation trajectory when the lower end of the mandrel is in a vertical state.

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