CN209903902U

CN209903902U - Bottle blowing machine

Info

Publication number: CN209903902U
Application number: CN201920640862.9U
Authority: CN
Inventors: 刘金虎; 潘治国; 范淦恩
Original assignee: Guangzhou Sinomi Packaging Technology Co Ltd
Current assignee: Guangzhou yicui Intelligent Technology Co., Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-01-07
Anticipated expiration: 2029-05-06

Abstract

The utility model provides a bottle blowing machine relates to the blowing equipment field to solve current bottle blowing machine equipment technical problem with high costs. The bottle blowing machine comprises a bottle blank heating mechanism, a rack, a bottle blowing mechanism, a mold mechanism and two clamping hand devices, wherein the bottle blank heating mechanism comprises a transmission mechanism and a heating furnace, and the transmission mechanism comprises a transmission driving device, a first transmission device, a second transmission device and a bottle blank positioning device; the bottle embryo positioning device clamps the bottle embryo to move in the heating furnace along the first transmission device, the second transmission device is arranged along the movement track of the bottle embryo and can be contacted with the moving bottle embryo, and the material or the structure of the contact area of the second transmission device and the bottle embryo can drive the bottle embryo to rotate through friction force. The utility model discloses utilize second transmission's frictional force to drive the rotation of bottle embryo, simple structure has effectively reduced the cost reduction of equipment each side.

Description

Bottle blowing machine

Technical Field

The utility model belongs to the technical field of the blowing equipment and specifically relates to a bottle blowing machine is related to.

Background

The bottle blowing machine is a device for manufacturing plastic particles into hollow containers through a blow molding process, and most of the bottle blowing machines are two-step bottle blowing machines, namely, plastic raw materials are made into bottle blanks firstly, and then blowing is carried out. The plastic material is usually thermoplastic resin, and is made into tubular plastic bottle blank through extrusion or injection molding, which is then set inside mold in opened state while it is hot or heated to softening state, and after the mold is closed, compressed air is introduced into the blank to expand the bottle blank to the inner wall of the mold, and after cooling and demolding, various hollow products are obtained. Therefore, the heating process of the bottle blank and the opening and closing and mold locking mechanisms of the mold are key factors influencing the bottle blowing quality and efficiency.

The existing bottle blank heating process is that after a bottle blank passes through a blank arranging mechanism, the bottle blank passes through a blank channel and a blank feeding mechanism and then enters a heating furnace, the bottle blank is softened in the furnace in an infrared heating mode to reach the condition of bottle blowing, and then the bottle blank is sent into a mold for bottle blowing; because the infrared heating has directionality, the bottle blanks need to rotate when revolving in the furnace, so as to ensure the uniformity of the bottle blanks during heating; each bottle blank of the existing bottle blank heating furnace is provided with an independent heating head, each heating head is provided with a self-rotating chain wheel, and the bottle blank is required to be provided with a blank pressing cam mechanism when entering the furnace, so that the heating head can be pressed into a bottle opening; therefore, the existing bottle blank heating furnace has the disadvantages of complex mechanism, high part precision requirement and high mechanism manufacturing, using and maintaining cost.

The traditional mold opening and closing mechanism usually moves along a mold opening and closing guide rail through a bearing, molds on two sides are driven to open and close through a single arm, a mold locking mechanism can be started after mold closing is finished, and the mold opening and closing mechanism is opened and then the mold is opened after bottle blowing is finished, so that the bearing of a mold opening and closing connecting rod of the traditional mold opening and closing mechanism is completely deviated from the center, the force arm is unbalanced in stress, and the mold opening and closing stroke is large; meanwhile, the clamping mechanism also occupies the cycle time, so that the working efficiency is further reduced, and the overall productivity is reduced; in addition, the existing mold opening and closing mechanism and mold locking mechanism are complex in structure and prone to failure, so that shutdown is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bottle blowing machine to solve current bottle blowing machine equipment cost height technical problem. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme: a bottle blowing machine comprises:

the bottle blank heating mechanism comprises a transmission mechanism and a heating furnace, wherein the transmission mechanism comprises a transmission driving device, a first transmission device, a second transmission device and a bottle blank positioning device; the transmission driving device is connected with the first transmission device and can drive the first transmission device to move in the heating furnace, the bottle blank positioning device clamps the bottle blank to move in the heating furnace along with the first transmission device, the second transmission device is arranged along the movement track of the bottle blank and can be contacted with the moving bottle blank, and the material or structure of the contact area of the second transmission device and the bottle blank can drive the bottle blank to rotate through friction;

the bottle blowing mechanism and the mold mechanism comprise a rack, and a bottle blowing mechanism and a mold mechanism which are positioned on the rack, wherein when a mold shell of the mold mechanism is in a mold closing state, the bottle blowing mechanism can blow bottle blanks positioned in the mold shell;

the two clamping hand devices, one of which is a blank sending clamping hand and the other is a bottle taking clamping hand; the heated bottle blank is conveyed into the mold shell in the mold opening state from the transmission mechanism through the blank conveying clamping hand, and the blow-molded bottle can be taken out from the mold shell in the mold opening state through the bottle taking clamping hand.

Preferably, the bottle blank positioning device comprises a movable part and a fixed part, the movable part is fixedly connected with the first transmission device and can move along with the first transmission device, and the movable part is provided with a gripping part matched with the outer diameter of the bottle blank body; the fixed piece is arranged along the motion track of the movable piece, and a crack matched with the thickness of the bottle blank support ring is arranged on one side of the fixed piece facing the movable piece; when the bottle embryo moves along with the movable piece, the bottle embryo support ring is positioned in the crack and is in contact with the second transmission device;

the second transmission device is a cold water pipe used for cooling the head of the bottle preform, the cold water pipe is fixedly connected with the fixing piece, and the cold water pipe at least and the material or the structure of the contact area of the bottle preform can drive the bottle preform to rotate through friction.

Preferably, the transmission driving device comprises a driving sprocket and a driven sprocket, the first transmission device is a chain, and the chain can rotate under the driving of the driving sprocket; the bottle embryo conveying device is characterized in that a plurality of first rollers are arranged above the chain, a plurality of second rollers are arranged below the chain, one of the first rollers and the second rollers rotates along a central shaft in the horizontal direction, the other of the first rollers and the second rollers rotates along a central shaft in the vertical direction, the first transmission device is further provided with a first guide rail and a second guide rail, the first rollers can be located in the first guide rail to rotate when moving along with the chain, the second rollers can be located in the second guide rail to rotate when moving along with the chain, and the first guide rail and the second guide rail can both prevent the bottle embryo from moving along the width direction of the guide rail.

Preferably, the transmission mechanism further comprises an embryo channel, an ion wind wheel is arranged on the embryo channel, the bottle embryos are sequentially arranged on the embryo channel, the size of blades of the ion wind wheel is matched with the size of bottle openings of the bottle embryos, the ion wind wheel can drive the bottle embryos to move towards the bottle embryo positioning device, and air outlets are formed in any one of the blades.

Preferably, the frame comprises a fixed part and a rotating part, and the rotating part can rotate relative to the fixed part;

the mould mechanism comprises a mould shell, a mould opening and closing mechanism and a mould locking mechanism, and the mould shell is connected with the rotating part and can rotate along with the rotating part; the formwork comprises two half formworks, the rear ends of the two half formworks are provided with rotation centers, and in the process that the formwork rotates along with the rotating part, the mold opening and closing mechanism can drive the two half formworks to rotate around the rotation centers of the two half formworks simultaneously so as to enable the front ends of the two half formworks to be close to each other for mold closing or to be away from each other for mold opening; when the mold shells are in a mold closing state, the mold locking mechanism can simultaneously clamp the mold locking corresponding structures of the two half mold shells; when the mold locking mechanism is separated from the corresponding mold locking structure, the mold shell can be in a mold opening state.

Preferably, the mold opening and closing mechanism comprises a cam mechanism and two groups of driving assemblies, the cam mechanism comprises a bearing and a bearing rail, the bearing rail is arranged on the fixed part, the front end of the driving assembly is fixedly connected with the rear end of the half mold shell, the rear end of the driving assembly is rotatably connected with the bearing, the bearing comprises a state close to the mold shell and a state far away from the mold shell when rotating in the bearing rail, and the bearing enables the driving assembly to drive the half mold shell to rotate around the rotation center through the movement close to or far away from the mold shell, so that the front ends of the two half mold shells are close to each other for mold closing or far away from each other for mold opening.

Preferably, the driving assembly is a connecting rod mechanism, the connecting rod mechanism comprises a first connecting rod and a second connecting rod, the front end of the first connecting rod is fixedly connected with the rear end of the half formwork, and the rear end of the first connecting rod is rotatably connected with the front end of the second connecting rod; the rear end of the second connecting rod is rotatably connected with the bearing, and when the bearing moves close to the formwork, the bearing can push the front ends of the half formworks to be close to each other through the second connecting rod and the first connecting rod; when the bearing moves away from the formwork, the bearing can pull the front ends of the half formworks away from each other through the second connecting rod and the first connecting rod.

Preferably, the driving assembly is a gear and rack mechanism, the gear and rack mechanism comprises a gear and a rack which are meshed with each other, the gear is fixedly connected with the rear end of the half formwork, the rear end of the rack is rotatably connected with the bearing, and when the bearing moves close to the formwork, the bearing can drive the front ends of the half formwork to be away from each other by pushing the rack; when the bearing moves away from the formwork, the bearing can enable the gear to drive the front ends of the half formworks to be close to each other by pulling the rack.

Preferably, the upper end of mould shell is equipped with seals the boss, seal the boss including setting up two half on the mould shell seals the boss, seal the boss and do the mode locking corresponds the structure, clamping mechanism is including sealing, sealing is located seal the boss top, and can follow the rotating part rotates, be equipped with on the fixed part and seal the guide rail, work as the mould shell with sealing follows simultaneously when the rotating part rotates, sealing is located seal the guide rail internal rotation, just seal the guide rail and include low level district section and high level district section, work as when sealing is in the low level district section, sealing can block seal the boss, work as when sealing is in the high level district section, sealing breaks away from seal the boss.

Preferably, the lower end of the formwork is provided with a back cover boss, the back cover boss comprises two back cover bosses arranged on the two half formworks, the back cover boss is a mold locking corresponding structure, the mold locking mechanism comprises a back cover piece, the back cover piece is positioned below the back cover boss and can rotate along with the rotating part, a back cover guide rail is arranged on the fixing part, when the formwork and the back cover piece rotate along with the rotating part, the back cover piece is positioned in the back cover guide rail to rotate, the back cover guide rail comprises a low section and a high section, when the back cover piece is positioned in the high section, the back cover piece can clamp the back cover boss, and when the back cover piece is positioned in the low section, the back cover piece is separated from the back cover boss.

Preferably, a rotating part of the rack is connected with a rack gear, the clamping device is connected with a clamping gear, and the rack gear is simultaneously in meshing transmission with the two clamping gears; the clamping device comprises a swinging part and a telescopic part, the swinging part is connected with the swinging cam mechanism, and the telescopic part is connected with the telescopic cam mechanism; and a pressure spring is connected between the telescopic part and the swinging part.

The utility model has the advantages that: the utility model discloses utilize bottle embryo positioner centre gripping bottle embryo, utilize first transmission to drive the bottle embryo and move in the stove of heating to utilize second transmission's frictional force to drive the bottle embryo rotation of motion, for heating head and rotation sprocket among the prior art, the structure is simpler, therefore maintenance, use cost are lower.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a bottle blowing machine in embodiment 1;

FIG. 2 is a schematic view of the transmission mechanism of embodiment 1 at one angle;

fig. 3 is a partially enlarged view of a portion D in fig. 2;

FIG. 4 is a schematic view of the transmission mechanism of embodiment 1 at another angle;

fig. 5 is a partially enlarged view of portion F of fig. 4;

FIG. 6 is a schematic structural view showing a state in which the movable member is connected to the chain in embodiment 1;

FIG. 7 is a schematic structural view of an ion wind rotor in embodiment 1;

FIG. 8 is a schematic structural view of a bottle blowing mechanism and a mold mechanism in embodiment 1;

FIG. 9 is a schematic structural view of the front face of a mold case in example 1;

FIG. 10 is a schematic view showing the structure of the side of the formwork in example 1;

FIG. 11 is a schematic view showing the structure of the ceiling surface of the formwork in example 1;

fig. 12 is a schematic structural view showing a mold opening and closing state of the mold locking mechanism in embodiment 1;

FIG. 13 is a schematic structural view showing a state in which the mold opening and closing mechanism is opened in embodiment 1;

FIG. 14 is a schematic view of the structure of the hand clamping device in embodiment 1;

FIG. 15 is a schematic view showing the structure of a track disk in the hand clamping device in embodiment 1;

fig. 16 is a schematic structural view of a drive unit in embodiment 2.

Wherein: 11. a frame gear; 12. a middle plate; 13. an upper plate; 14. a bearing track; 15. a sealing guide rail; 16. a back cover guide rail;

2. a half mould shell; 21. a fixed shaft; 22. a semi-sealed boss; 221. a sealing part; 222. a sealing roller; 23. a half-back-cover boss; 231. sealing the bottom; 232. a bottom sealing roller; 24. a bearing; 251. a first connecting rod; 252. a second connecting rod; 261. a gear; 262. a rack;

31. a gripper gear; 32. a transmission rod; 321. a turntable; 33. a hand clamping device; 331. a telescopic bearing; 332. a swing bearing; 333. a telescopic part; 334. a swing portion; 34. a track disk; 341. a telescopic bearing movement track; 342. a rocking bearing motion track;

4. a embryo channel; 41. an ion wind wheel; 411. a blade; 412. an air outlet;

51. a movable member; 511. a transverse portion; 512. a vertical portion; 513. a connecting portion; 514. a first rotating shaft; 515. a second rotating shaft; 52. a fixing member; 521. performing crack filling; 53. a cold water pipe;

61. a drive sprocket; 611. a drive shaft; 62. a driven sprocket; 621. a driven shaft; 63. a chain; 631. a first roller; 632. a second roller; 633. a second guide rail;

7. bottle embryo; 71 a bottle blank body; 72. and a bottle blank support ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the present embodiment provides a bottle blowing machine, which includes: a bottle blank heating mechanism, a machine frame, a bottle blowing mechanism, a mold mechanism and two clamping hand devices 33; the bottle blank heating mechanism comprises a transmission mechanism and a heating furnace, wherein the transmission mechanism comprises a transmission driving device, a first transmission device, a second transmission device and a bottle blank positioning device; the transmission driving device is connected with the first transmission device and can drive the first transmission device to move in the heating furnace, the bottle blank positioning device clamps the bottle blank to move in the heating furnace along with the first transmission device, the second transmission device is arranged along the movement track of the bottle blank and can be contacted with the moving bottle blank, and the material or structure of the contact area of the second transmission device and the bottle blank 7 can drive the bottle blank 7 to rotate through friction force;

the bottle blowing mechanism and the mold mechanism are positioned on the rack, and when a mold shell of the mold mechanism is in a mold closing state, the bottle blowing mechanism can blow bottle blanks positioned in the mold shell;

two clamping devices 33, one of which is a blank feeding clamping hand and the other is a bottle taking clamping hand; the heated bottle blank is conveyed into the mold shell in the mold opening state from the transmission mechanism through the blank conveying clamping hand, and the blow-molded bottle can be taken out from the mold shell in the mold opening state through the bottle taking clamping hand.

As shown in fig. 2-7, the transmission mechanism of the present embodiment includes a preform path 4, a transmission driving device, a first transmission device, a second transmission device, and a preform positioning device; the transmission driving device, the first transmission device, the second transmission device and the bottle blank positioning device are arranged in the heating furnace, the bottle blanks 7 are conveyed to the bottle blank positioning device through the blank channel 4, the uniform heating of the bottle blanks in the heating furnace is realized by utilizing the movement of the first transmission device, the heating furnace is an existing product, the installation mode, the installation position and the like of the transmission mechanism in the heating furnace are selected according to the actual structure and the size of the product, and the embodiment is not described in detail for simplifying the description.

As shown in fig. 2, 5 and 6, in the present embodiment, the bottle blank positioning device includes a movable member 51 and a fixed member 52, the movable member 51 is fixedly connected to the first transmission device, and includes a gripping portion matching with the outer diameter of the bottle blank body 71; the fixed piece 52 is arranged along the movement track of the movable piece 51, and a crack 521 matched with the thickness of the bottle blank support ring 72 is arranged on one side facing the movable piece 51; the bottle embryo support ring 72 is an annular protrusion on the bottle embryo 7 at a position close to the head of the bottle embryo 7, according to the structure of the existing bottle embryo support ring 72, the movable portion capable of grasping the bottle embryo body 71 and the fixing portion capable of clamping and fixing the bottle embryo support ring 72 are utilized in the embodiment, so that the bottle embryo 7 can stably move along a set movement track in the movement process, the movement and heating processes of the bottle embryo 7 are orderly and efficiently performed, and the grasping structure and the crack 521 structure of the embodiment are simpler in structure, and therefore, the maintenance and use cost is lower compared with the heating head and embryo pressing cam mechanism structure used in the heating process of the existing bottle embryo 7.

In this embodiment, the transmission driving device includes a driving sprocket 61 and a driven sprocket 62, the first transmission device is a chain 63, the chain 63 can rotate under the driving of the driving sprocket 61, and the driving sprocket 61 can drive a driving shaft 611 through a motor (not shown in the figure) to further drive the driving sprocket 61 to rotate; the driven sprocket 62 and the driven shaft 621 mainly function as a support chain 63 and passively rotate; of course, the first transmission device is used for orderly running the bottle blanks 7 from the feeding into the heating furnace to the discharging from the furnace, so other existing transmission modes such as belt transmission, rail transmission and the like can be adopted.

The second transmission device is arranged to ensure that the bottle blanks 7 can rotate while running in the heating furnace, and can be heated by infrared rays in the heating furnace in a specific direction more uniformly, the second transmission device in the embodiment is in contact friction with the bottle blanks 7 in the moving process of the bottle blanks 7, and the bottle blanks 7 rotate by using friction force, so that the second transmission device is arranged along the moving track of the moving part 51, namely the moving track of the bottle blanks 7, and in the range of the second transmission device, a part of area of the bottle blanks 7 is always kept in contact with one side of the second transmission device facing the bottle blanks 7, so that the bottle blanks 7 can rotate continuously in the range of the second transmission device; by adjusting the pressure between the bottle embryo 7 and the second transmission device in the movement process and the friction coefficient between the bottle embryo 7 and the second transmission device in the mutual contact area, enough large friction force can be realized, so that the bottle embryo 7 can rotate; under the condition that the distance between the bottle blank 7 and the second transmission device, namely the contact pressure between the bottle blank and the second transmission device is fixed, a friction coefficient between the bottle blank and the second transmission device is increased, so that a sufficient friction force can be obtained, the second transmission device can be processed by selecting a material with a large friction coefficient in a mode of increasing the friction coefficient, and a structure capable of increasing the friction coefficient can be arranged on the second transmission device, for example, various texture structures are arranged on the surface of the second transmission device, so that the surface of the second transmission device is rough and uneven.

Under the general condition, bottle embryo 7 is in by the heating process, need to keep bottle embryo 7 head bottleneck position cooling, consequently can set up cold water pipe 53 corresponding to the position of bottle embryo 7 head, inside circulation cooling water, the structure of cold water pipe 53 is utilized to this embodiment, select the great material processing cold water pipe 53 of coefficient of friction, just enable cold water pipe 53 when cooling bottle embryo 7 head, can also utilize frictional force to drive bottle embryo 7 rotation, under the condition that does not increase extra structure promptly, the rotation of bottle embryo 7 has just been realized, for the rotation sprocket who uses among the prior art, the structure is simpler, and the cost is lower.

Because the second transmission device and the fixing member 52 are both arranged along the movement track of the bottle blank 7, the second transmission device and the fixing member 52 can be fixedly connected, so that the overall structure is more stable.

For processing convenience, the fixing member 52 includes two parallel fixing plates, and the distance between the two fixing plates can be adjusted according to the thickness of the bottle blank support ring 72, for example, a cushion block can be disposed between the two fixing plates, and the cushion blocks with different heights can be selected to form a gap 521 capable of clamping the bottle blank support ring 72. Of course, the fixing member 52 may also be an integrally formed structure, and a groove-shaped slit 521 capable of clamping the bottle blank support ring 72 may be formed along the movement track of the bottle blank 7.

For the convenience of connection, the movable member 51 includes a horizontal portion 511 and a vertical portion 512 which are vertically connected to each other, the vertical portion 512 is fixedly connected to the chain 63, and the grasping portion is a semicircular groove structure of the horizontal portion 511 near one end of the fixed member 52, because the bottle blank support ring 72 protrudes out of the bottle blank body 71, the semicircular groove can support a portion of the bottle blank support ring 72, and the other portion of the bottle blank support ring 72 is clamped by the clamping gap 521, so that the bottle blank 7 can be stably supported by the fixed member 52 and the movable member 51. As shown in fig. 6, the horizontal portion 511 and the joints of the chain 63 are respectively located at two sides of the vertical portion 512, and the movable members 51 are sequentially and continuously disposed on the chain 63, so as to ensure compact and orderly transfer of the bottle blanks 7, and improve heating efficiency.

In order to increase the movement stability of the chain 63 and further prevent the bottle blanks 7 from jumping back and forth and up and down, a plurality of first rollers 631 are arranged above the chain 63, a plurality of second rollers 632 are arranged below the chain 63, the first rollers 631 rotate along a first rotating shaft 514 in the vertical direction, the second rollers 632 rotate along a second shaft in the horizontal direction, as shown in fig. 6, connecting portions 513 are arranged above and below joints of the chain 63 on a vertical portion 512 of any movable member 51, a first rotating shaft 514 in the vertical direction is arranged on the connecting portion 513 above the chain wheel, and the first rotating shaft 514 can be used for installing the first rollers 631; a second rotating shaft 515 in the horizontal direction is arranged on the connecting part 513 below the chain wheel, and the second rotating shaft 515 can be used for installing a second roller 632; as shown in fig. 5, a first guide rail and a second guide rail 633 are provided corresponding to the first roller 631 and the second roller 632, the first roller 631 can rotate in the first guide rail when moving with the chain 63, the second roller 632 can rotate in the second guide rail 633 when moving with the chain 63, the first guide rail prevents the bottle blanks 7 from bouncing back and forth by limiting the front and back movement of the first roller 631, the second guide rail 633 prevents the bottle blanks 7 from bouncing up and down by limiting the up and down movement of the second roller 632, for convenience of observation, the first guide rail is not shown in the drawing, has the same length as the second guide rail 633, and the guide rail groove matches with the rotation direction of the first roller 631.

In order to improve the conveying stability of the bottle embryo 7, the embryo channel 4 is provided with the ion wind wheel 41, in this embodiment, the embryo channel 4 is composed of two parallel rails, the bottle embryo body 71 is clamped between the two rails, the rails support the bottle embryo support ring 72 to hold up all the bottle embryos 7, all the bottle embryos 7 are sequentially arranged on the embryo channel 4, as shown in fig. 7, the size of the blade 411 of the ion wind wheel 41 is matched with the size of the bottle opening of the bottle embryo 7, when the ion wind wheel 41 rotates, the blade 411 can be inserted into the bottle embryo 7 opening, the bottle embryo 7 can be shifted to the transmission device body by continuing to rotate, and then the next blade 411 can shift the subsequent bottle embryo 7 to the transmission device body again. As shown in fig. 3, the embryo channel 4 is butted with the bottle embryo positioning device, and the distance between the two tracks of the embryo channel 4 is consistent with the diameter of the semicircular groove of the movable member 51; the bottle embryo 7 sent out from the embryo channel 4 can be sent into the semicircular groove of the movable piece 51 butted with the bottle embryo and then is transported backwards along with the rotation of the chain 63.

As shown in fig. 4, a cavity is formed in the ion wind wheel 41, an air outlet 412 is further formed at the tip of any blade 411, when the ion wind wheel 41 is connected to the ion fan, the ion wind can be blown out from the air outlet 412, static electricity of the bottle blank 7 can be eliminated, and particles such as dust can be blown out of the bottle blank 7.

Referring to fig. 8-15, the bottle blowing mechanism and the mold mechanism of the present embodiment, the bottle blowing mechanism in the present embodiment adopts the existing structure, and will not be described in detail here. The die mechanism comprises a die shell, a die opening and closing mechanism and a die locking mechanism, the frame comprises a fixed part and a rotating part, the rotating part can rotate relative to the fixed part, and the rotating power of the rotating part can be provided by the existing equipment such as a motor; specifically, the rotating part includes a rack gear 11 located at the bottom, a middle plate 12 and an upper plate 13 located above the rack gear 11, the middle plate 12 and the upper plate 13 and the middle plate 12 and the rack gear 11 are fixedly connected through a support member, and the support member may be a columnar or plate-shaped structure and can be connected and supported;

in this embodiment, the formwork includes two half formworks 2 and a mold opening and closing mechanism, the rear ends of the two half formworks 2 have rotation centers, the rotation centers are provided with fixing shafts 21, the formwork is connected between the middle plate 12 and the upper plate 13, the middle plate 12 and the upper plate 13 are provided with rotation shaft holes, the upper and lower ends of the fixing shafts 21 are respectively connected in the rotation shaft holes of the upper plate 13 and the middle plate 12, so that the formwork can revolve around the frame following the rotation of the upper plate 13 and the middle plate 12, and simultaneously, the two half formworks 2 can realize mold opening and mold closing by the rotation of their rotation centers.

The mold opening and closing mechanism in the embodiment comprises a cam mechanism and two groups of driving components; the cam mechanism includes a bearing 24 and a bearing rail 14, the bearing rail 14 is disposed on the fixing portion; as shown in fig. 9-11, the driving assembly is a link mechanism, the link mechanism includes a first link 251 and a second link 252, the front end of the first link 251 is fixedly connected with the rear end of the half formwork 2, the rear end of the first link 251 is rotatably connected with the front end of the second link 252 (the connecting rotation center is a hinge point a in the figure); the rear end of the second connecting rod 252 is rotatably connected with the bearing 24 (the connecting rotation center is a hinge point B in the figure); when the formwork rotates along with the rotating part, the bearing 24 can be driven to rotate in the guide rail; the bearing track 14 comprises a far mold section for enabling the bearing 24 to be far away from the formwork and a near mold section for enabling the bearing 24 to be close to the formwork, and as the positions of the rotating shaft, the half mold shells 2 and the first connecting rod 251 are relatively fixed, the first connecting rod 251 is rotationally connected with the second connecting rod 252, and the second connecting rod 252 is rotationally connected with the bearing 24, when the bearing 24 is close to the formwork, the two hinge points A are far away from each other due to thrust, and at the moment, the front ends of the two half formworks 2 rotate at the point C in the diagram of the rotation center, so that the two half form; similarly, when the bearing 24 moves away from the mold shell in the guide rail, the two hinge points a are close to each other due to the pulling force, and at the moment, the front ends of the two half mold shells 2 rotate at the point C in the diagram of the rotation center, so that the mold opening is realized by keeping away from each other. The shuttering is opened and closed through the relative intermediate position of two half shuttering 2, the dynamic balance is better, and under the same opening and closing angle, the stroke of the structural bearing 24 of this embodiment can be reduced by half, make the cam curvature smaller, more stable, the efficiency is higher.

As an alternative embodiment, the mold locking corresponding structure in this embodiment includes a sealing boss at the upper end of the mold casing and a bottom sealing boss at the lower end of the mold casing, and correspondingly, the mold locking mechanism includes a sealing member and a bottom sealing member, as shown in fig. 9-13.

The sealing boss comprises semi-sealing bosses 22 arranged on two semi-formworks 2, sealing pieces are positioned above the sealing bosses and can rotate along with the upper plate 13, each sealing piece comprises a sealing part 221 and a sealing roller 222 which are connected with each other, a sealing guide rail 15 is arranged on each fixing part, each sealing guide rail 15 comprises a high-position section and a low-position section, when the formworks and the sealing pieces rotate along with the rotating parts, the sealing pieces rotate in the sealing guide rails 15, each sealing guide rail 15 comprises a low-position section and a high-position section, when the sealing rollers 222 are positioned in the low-position sections, the sealing parts 221 are positioned at lower positions and can clamp the sealing bosses, so that the formworks are in a mode locking state, and when the sealing rollers 222 are positioned in the high-position sections, the sealing parts 221 are positioned at higher positions and separated from the sealing bosses, so that the.

The back cover boss is including setting up half back cover boss 23 on two half mould shells 2, the back cover spare is located back cover boss below, and can rotate along with medium plate 12, the back cover spare includes back cover portion 231 and back cover gyro wheel 232, be equipped with back cover guide rail 16 on the fixed part, when mould shell and back cover portion 231 rotate along with the rotating part, back cover gyro wheel 232 is located back cover guide rail 16 internal rotation, and back cover guide rail 16 includes low level district section and high level district section, when back cover gyro wheel 232 is located high level district section, the back cover boss can be blocked to the back cover spare, when the back cover spare is in low level district section, the back cover spare breaks away from the back cover boss.

The bearing track 14, the sealing guide rail 15 and the sealing guide rail 16 all belong to fixed parts of a rack, a near-mold section of the bearing track 14, a low-level section of the sealing guide rail 15 and a high-level section of the sealing guide rail 16 correspond to each other, at the moment, the mold shell is in a mold closing state, and the mold locking mechanism locks the mold shell; the bearing track 14 far mold section, the sealing guide rail 15 high-level section and the sealing guide rail 16 low-level section correspond to each other, at the moment, the mold shell is in a mold opening state, and the mold locking mechanism is unlocked. Consequently along with the rotation of rotating part, the clamping mechanism unblock when the mould shell die sinking, when the mould shell compound die, the clamping mechanism mode locking, the mode locking no longer takes extra time for whole cycle shortens, and work efficiency improves, and the productivity improves. Of course, the height change between the sealing member and the bottom sealing member is not limited to the arrangement of the height position of the guide rail, and may be realized by a device such as an air cylinder.

As shown in fig. 8, the two gripping devices 33 of the present embodiment are respectively a blank feeding gripper and a bottle taking gripper; the gripper device 33 is connected with the gripper gear 31, the gripper gear 31 is connected with the rotating disc 321 through the transmission rod 32, and the rotating disc 321 drives the gripper device 33 to rotate. The rack gear 11 is simultaneously in meshed transmission with the two clamping hand gears 31; when the mold shell is in a mold opening state and rotates to a blank conveying position, the blank conveying clamp can convey the clamped bottle blank into the mold shell; when the mold shell rotates to the bottle outlet position and is in the mold opening state, the bottle taking clamp can clamp a bottle and leave the mold shell.

Specifically, as shown in fig. 14 to 15, the gripper device 33 in the present embodiment includes a swing portion 334, an expansion portion 333, a swing cam mechanism, an expansion cam mechanism, and a track plate 34, the swing portion 334 is connected to a swing bearing 332 of the swing cam mechanism, and the expansion portion 333 is connected to an expansion bearing 331 of the expansion cam mechanism. The outer side track of the track disc 34 is a telescopic bearing moving track 341, the inner side track of the track disc 34 is a swinging bearing moving track 342, when the telescopic bearing 331 and the swinging bearing 332 move to the positions shown in fig. 8 along with the rotation of the turntable 321, the telescopic bearing 331 can drive the telescopic part 333 to compress towards the swinging part 334, meanwhile, the swinging part 334 maintains a short swinging state under the action of the swinging bearing 332, the butt joint time of the gripper device 33 and the formwork shell is prolonged, and the blank feeding and bottle taking actions are completed; the gripper device 33 of this embodiment utilizes the double cam structure, and a cam mechanism realizes the gripper swing, and another cam mechanism realizes the gripper is flexible, can realize the tracking of gripper to the mould position for handing-over is more smooth and easy.

In order to reduce the trouble, a pressure spring is not shown in the figure at the position where the expansion part 333 is connected to the swing part 334. The pressure spring is in a compressed state all the time, and in the process that the telescopic part 333 is compressed close to the swinging part 334, the pressure spring is further compressed, and the tension spring in the traditional clamping device 33 is replaced by the pressure spring, so that the spring can be prevented from being broken, and the influence on the production efficiency due to equipment failure is avoided.

Example 2

As shown in fig. 9, the present embodiment is different from embodiment 1 in that: the driving component is a gear and rack mechanism, the gear and rack mechanism comprises a gear 261 and a rack 262 which are meshed with each other, tooth surfaces of the two racks 262 are deviated, the gear 261 is fixedly connected with the rear end of the half formwork 2, the rotation center of the gear 261 is overlapped with the rotation center of the rotating shaft in the embodiment, the rear end of the rack 262 is rotatably connected with the bearing 24, when the bearing 24 is close to the formwork to move, the bearing 24 can push the rack 262 to move towards the formwork, meanwhile, the two gears 261 rotate along opposite directions, and the gear 261 drives the half formwork 2 to rotate around the rotation center to enable the front ends of the two half formworks 2 to be far away from each other; when the bearing 24 moves away from the formwork, the bearing 24 can change the rotation direction of both the two gears 261 by pulling the rack 262, which drives the front ends of the half formworks 2 to approach each other.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A bottle blowing machine is characterized by comprising:

the bottle blank heating mechanism comprises a transmission mechanism and a heating furnace, wherein the transmission mechanism comprises a transmission driving device, a first transmission device, a second transmission device and a bottle blank positioning device; the transmission driving device is connected with the first transmission device and can drive the first transmission device to move in the heating furnace, the bottle blank positioning device clamps the bottle blank to move in the heating furnace along with the first transmission device, the second transmission device is arranged along the movement track of the bottle blank and can be contacted with the moving bottle blank, and the material or structure of the contact area of the second transmission device and the bottle blank (7) can drive the bottle blank (7) to rotate through friction force;

two clamping hand devices (33), one of the two clamping hand devices (33) is a blank sending clamping hand, and the other clamping hand is a bottle taking clamping hand; the heated bottle blank is conveyed into the mold shell in the mold opening state from the transmission mechanism through the blank conveying clamping hand, and the blow-molded bottle can be taken out from the mold shell in the mold opening state through the bottle taking clamping hand.

2. The bottle blowing machine according to claim 1, wherein the bottle blank positioning device comprises a movable member (51) and a fixed member (52), the movable member (51) is fixedly connected with the first transmission device and can move along with the first transmission device, and the movable member is provided with a gripping part matched with the outer diameter of the bottle blank body (71); the fixed piece (52) is arranged along the motion track of the movable piece (51), and a crack (521) matched with the thickness of the bottle blank support ring (72) is arranged on one side of the fixed piece (52) facing the movable piece (51); when the bottle blank (7) moves along with the movable piece (51), the bottle blank supporting ring (72) is positioned in the crack (521) and is in contact with the second transmission device;

the second transmission device is a cold water pipe (53) used for cooling the head of the bottle preform (7), the cold water pipe (53) is fixedly connected with the fixing piece (52), and materials or structures of at least the contact area of the cold water pipe (53) and the bottle preform (7) can drive the bottle preform (7) to rotate through friction.

3. The bottle blowing machine according to claim 1, characterized in that the transmission driving device comprises a driving sprocket (61) and a driven sprocket (62), the first transmission device is a chain (63), and the chain (63) can rotate under the driving of the driving sprocket (61); the bottle embryo conveying device is characterized in that a plurality of first rollers (631) are arranged above the chain (63), a plurality of second rollers (632) are arranged below the chain (63), one of the first rollers (631) and the second rollers (632) rotates along a central shaft in the horizontal direction, the other of the first rollers and the second rollers rotates along a central shaft in the vertical direction, the first transmission device is further provided with a first guide rail and a second guide rail (633), the first rollers (631) can be located in the first guide rail to rotate when following the chain (63) to move, the second rollers (632) can be located in the second guide rail (633) to rotate when following the chain (63) to move, and the first guide rail and the second guide rail (633) can both prevent the bottle embryos (7) from moving along the width direction of the guide rails.

4. The bottle blowing machine according to claim 1, wherein the transmission mechanism further comprises an embryo channel (4), an ion wind wheel (41) is arranged on the embryo channel (4), the bottle embryos (7) are sequentially arranged on the embryo channel (4), the size of a blade (411) of the ion wind wheel (41) is matched with the size of a bottle opening of the bottle embryo (7), the ion wind wheel (41) can drive the bottle embryo (7) to move towards the bottle embryo positioning device, and an air outlet (412) is arranged on any blade (411).

5. The bottle blowing machine of claim 1, wherein the frame comprises a stationary portion and a rotating portion, the rotating portion being rotatable relative to the stationary portion;

the mould mechanism comprises a mould shell, a mould opening and closing mechanism and a mould locking mechanism, and the mould shell is connected with the rotating part and can rotate along with the rotating part; the mould shell comprises two half mould shells (2), the rear ends of the two half mould shells (2) are provided with autorotation centers, and in the process that the mould shell rotates along with the rotating part, the mould opening and closing mechanism can drive the two half mould shells (2) to rotate around the autorotation centers of the mould opening and closing mechanism simultaneously so as to enable the front ends of the two half mould shells (2) to be close to each other or be far away from each other for mould opening; when the mold shells are in a mold closing state, the mold locking mechanism can simultaneously clamp the mold locking corresponding structures of the two half mold shells (2); when the mold locking mechanism is separated from the corresponding mold locking structure, the mold shell can be in a mold opening state.

6. The bottle blowing machine of claim 5, wherein the mold opening and closing mechanism comprises a cam mechanism and two sets of driving components, the cam mechanism comprises a bearing (24) and a bearing rail (14), the bearing rail (14) is arranged on a fixed part, the front end of the driving component is fixedly connected with the rear end of the half mold shell (2), the rear end of the driving component is rotatably connected with the bearing (24), the bearing (24) comprises a state close to the mold shell and a state far from the mold shell when rotating in the bearing rail (14), and the bearing (24) enables the driving component to drive the half mold shell (2) to rotate at the rotation center through the movement close to or far from the mold shell, so that the front ends of the two half mold shells (2) are close to each other and matched or far from each other for mold opening.

7. The bottle blowing machine according to claim 6, characterized in that the driving component is a link mechanism, the link mechanism comprises a first link (251) and a second link (252), the front end of the first link (251) is fixedly connected with the rear end of the half mold shell (2), and the rear end of the first link (251) is rotatably connected with the front end of the second link (252); the rear end of the second connecting rod (252) is rotationally connected with the bearing (24), and when the bearing (24) moves close to the formwork, the bearing (24) can push the front ends of the half formworks (2) to be close to each other through the second connecting rod (252) and the first connecting rod (251); when the bearing (24) moves away from the formwork, the bearing (24) can pull the front ends of the half formworks (2) away from each other through the second connecting rod (252) and the first connecting rod (251);

or the driving component is a gear and rack mechanism, the gear and rack mechanism comprises a gear (261) and a rack (262) which are meshed with each other, the gear (261) is fixedly connected with the rear end of the half formwork (2), the rear end of the rack (262) is rotatably connected with the bearing (24), and when the bearing (24) moves close to the formwork, the bearing (24) can drive the gear (261) to drive the front end of the half formwork (2) to be away from each other by pushing the rack (262); when the bearing (24) moves away from the formwork, the bearing (24) can enable the gear (261) to drive the front ends of the half formworks (2) to be close to each other by pulling the rack (262).

8. The bottle blowing machine of claim 5, wherein the upper end of the mold shell is provided with a sealing boss, the sealing lug bosses comprise semi-sealing lug bosses (22) arranged on the two half mould shells (2), the sealing boss is of a structure corresponding to the mold locking, the mold locking mechanism comprises a sealing piece, the sealing piece is positioned above the sealing boss and can rotate along with the rotating part, the fixing part is provided with a sealing guide rail (15), when the formwork and the sealing piece rotate along with the rotating part at the same time, the sealing piece is positioned in the sealing guide rail (15) to rotate, the sealing guide rail (15) comprises a low-position section and a high-position section, when the sealing piece is in the low-position section, the sealing piece can be clamped on the sealing boss, and when the sealing piece is in the high-position section, the sealing piece is separated from the sealing boss.

9. The bottle blowing machine according to claim 5, characterized in that the lower end of the mold shell is provided with a back cover boss, the back cover boss comprises half back cover bosses (23) arranged on the two half mold shells (2), the back cover boss is a structure corresponding to the mold locking, the mold locking mechanism comprises a back cover member, the back cover member is positioned below the back cover boss and can rotate along with the rotating part, the fixing part is provided with a back cover guide rail (16), when the mold shell and the back cover member rotate along with the rotating part, the back cover member is positioned in the back cover guide rail (16) and rotates, the back cover guide rail (16) comprises a low section and a high section, when the back cover member is positioned in the high section, the back cover member can clamp the back cover boss, and when the back cover member is positioned in the low section, the back cover member is separated from the back cover boss.

10. The bottle blowing machine according to any one of claims 1 to 9, characterized in that the rotating part of the frame is connected with a frame gear (11), the gripper (33) is connected with a gripper gear (31), and the frame gear (11) is simultaneously in meshing transmission with the two gripper gears (31); the clamping device (33) comprises a swinging part (334) and a telescopic part (333), the swinging part (334) is connected with the swinging cam mechanism, and the telescopic part (333) is connected with the telescopic cam mechanism; and a pressure spring is connected between the telescopic part (333) and the swinging part (334).