CN216941784U - Bottle blowing machine - Google Patents

Abstract

The utility model discloses a bottle blowing machine which comprises a rack, wherein a bottle blank seat station capable of bearing a bottle blank seat is formed on the rack, a first conveying device is arranged on the rack and can enable the bottle blank seat to be conveyed along a conveying path, a feeding station, a first distance adjusting station, a heating station, a second distance adjusting station, a bottle blowing station and a blanking station are sequentially arranged on the rack and along the conveying path, the first distance adjusting station adjusts the fed bottle blank seat to a distance suitable for heating, a first distance adjusting device is arranged on the first distance adjusting station, the second distance adjusting station adjusts the heated bottle blank seat to a distance suitable for bottle blowing, a second distance adjusting device is arranged on the second distance adjusting station, and the bottle blowing machine further comprises a shifting plate. The utility model can simply realize the continuous operation of the automatic bottle blowing machine.

Description

Bottle blowing machine

Technical Field

The utility model relates to plastic bottle blank processing equipment, in particular to a bottle blowing machine, and belongs to the technical field of plastic processing machinery.

Background

The bottle blowing machine is a kind of equipment which makes plastic granules into hollow container by means of blow-moulding process, and is characterized by that the tubular plastic bottle blank is placed in the mould under the condition of heating and softening, and after the mould is closed, the compressed air is fed into the parison to make the plastic bottle blank be blown and tightly attached to the inner wall of the mould, and then the plastic bottle blank is cooled and demoulded so as to obtain various hollow containers. In the prior art, most bottle blowing machines blow bottles by a two-step method, namely, plastic raw materials are made into bottle blanks firstly, and then the bottle blanks are blown.

In contrast, the bottle blowing machine in the prior art generally includes a feeding device, a conveying device, a bottle blank heating device, a bottle blowing device, a discharging device, and the like. On the one hand, the preforms are continuously transported by the transport device, and on the other hand, the preforms require several seconds of blowing time in the bottle blowing device, so that the bottle blowing machine needs to be balanced between continuous transport and intermittent blowing in process design, and the continuous operation of the bottle blowing machine is ensured.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides the bottle blowing machine which ensures the continuous operation of the bottle blowing machine and has simple structure and high efficiency.

Therefore, the utility model adopts the following technical scheme:

the utility model provides a bottle blowing machine, includes frame (1), form bottle base seat station (2) that can bear bottle base seat (100) on frame (1), be provided with first conveyor in the frame, first conveyor can make bottle base seat (100) along the transmission path transmission, its characterized in that: a feeding station, a first distance adjusting station, a heating station, a second distance adjusting station, a bottle blowing station and a discharging station are sequentially arranged on the machine frame along a conveying path, the first distance adjusting station adjusts the fed bottle blank seat to a distance suitable for heating, a first distance adjusting device is arranged on the first distance adjusting station, the second distance adjusting station adjusts the heated bottle blank seat to a distance suitable for bottle blowing, a second distance adjusting device (7) is arranged on the second distance adjusting station, the second distance adjusting device (7) comprises a group of blank taking mechanisms, and the group of blank taking mechanisms can extend, translate, retract and reset under the action of a first power device; the bottle blowing machine further comprises a shifting plate (10), N groups of first notches (10a) are arranged on the shifting plate (10), N is more than or equal to 3, each group of first notches (10a) comprises M first notches (10a), M is more than or equal to 1 and less than or equal to 10, each first notch (10a) can at least partially accommodate the bottle blank seat, and the shifting plate can extend, translate, retract and reset under the action of a second power device; the N groups of first notches (10a) at least comprise three groups, wherein the three groups of first notches respectively correspond to bottle blank seats at the second distance adjusting station, the bottle blowing station and the blanking station in a reset state, and respectively correspond to the bottle blank seats at the bottle blowing station, the blanking station and the feeding station in a moving-out state; the number of the blank taking mechanisms in the group is P, and P is more than or equal to 1 and less than or equal to 10.

Further, P is more than or equal to 2 and less than or equal to 10, and M is equal to P.

Further, the end of the shifting plate (10) constitutes the first distance adjusting device.

Furthermore, a bottle blank pushing seat device (11) is further arranged on the rack, and the bottle blank pushing seat device (11) accelerates the loaded bottle blank seat (100) to move to the direction of the heating station; the bottle blank pushing seat device (11) comprises a pushing sheet (11a) and a third power device for driving the pushing sheet (11a) to reciprocate along a bottle blank conveying path.

Furthermore, a second conveying device (5) is arranged on the rack and below the first distance adjusting station, and is provided with a conveying belt and a driving wheel, and the conveying belt is in contact with the bottom of the bottle blank seat (100).

Further, N is 4, form 4 first notches of group (10a) on shifting board (10), the bottle base seat that second roll adjustment station, bottle blowing station, unloading station and material loading station department are respectively corresponded to these four first notches of group under the reset condition, and the bottle base seat that bottle blowing station, unloading station, material loading station and first roll adjustment station department is corresponded to respectively under the state of shifting out.

Further, the blank taking mechanism is a bottle blank fork (71), the bottle blank fork (71) is slidably mounted on a mounting frame (72), the mounting frame is slidably mounted on the rack (1), the bottle blank fork can horizontally move on the mounting frame so as to translate and reset, and the mounting frame (72) can vertically move on the rack so as to extend and retract the bottle blank fork.

Further, the first power device comprises a first horizontal power device and a first vertical power device, the first horizontal power device comprises a group of connecting rods (73) and a power source for driving the group of connecting rods to contract and open, and the bottle blank fork (71) is connected with the connecting rods (73); the first vertical power device is connected with the mounting frame and can drive the mounting frame to move in the vertical direction.

Further, the blank taking mechanism is a blank taking rod which can be inserted into the bottle blank cavity.

Further, the first conveying device is a star wheel disc (12) located between the first distance adjusting station and the heating station, a plurality of gears (121) distributed at equal intervals are arranged on the star wheel disc, a second notch (122) capable of partially accommodating a bottle blank seat is formed between every two adjacent gears, and the star wheel disc rotates at a constant speed under the action of a fourth power device; the second slot (122) may receive one or more blank holders. Furthermore, an automatic feeding device (4) is arranged on the feeding station to automatically feed the bottle blanks; and a heating device (6) is arranged on the heating station and used for heating the bottle blank.

Further, the second power device comprises a second horizontal power device and a second vertical power device; the third power means comprises a third horizontal power means.

According to the bottle blowing machine, the first distance adjusting device and the second distance adjusting device are arranged, and two times of automatic distance adjusting operation is carried out on a bottle blank, so that the bottle blank meets the distance requirement of the next working procedure; the specific implementation mode of the first distance adjusting device has multiple choices, and any one or the combination of more than two of the first distance adjusting devices can be used, so that the first distance adjusting process is smoother and more efficient; in the process of the second distance adjustment, the blank taking mechanism is used for realizing the second distance adjustment, the distance adjustment can be realized while the displacement is realized under the working condition that the relative distance between the bottle blanks needs to be adjusted, and a group of bottle blanks can be moved to a bottle blowing waiting position under the working condition that the relative distance between the bottle blanks does not need to be adjusted; a structure realizes a plurality of functions, and the operation flow is simpler and more convenient, simple structure. Therefore, the utility model can realize the continuous operation of the bottle blowing machine, has simple structure and simple and convenient flow and can improve the production efficiency.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of a shifting plate according to one embodiment of the present invention;

FIG. 4 is a schematic view of a shifting plate according to another embodiment of the present invention;

FIG. 5 is a further schematic structural diagram of an embodiment of the present invention;

FIG. 6 is an x-direction view of FIG. 1;

FIG. 7 is a perspective view of an embodiment of the present invention;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is a further perspective view of an embodiment of the present invention;

FIG. 10 is a further schematic structural diagram of an embodiment of the present invention;

in the figure, a machine frame 1, a bottle blank seat station 2, an automatic feeding device 4, a second conveying device 5, a heating device 6, a heating drying channel 6a, a second distance adjusting device 7, a bottle blank fork 71, a mounting frame 72, a connecting rod 73, a first air cylinder 74, a second air cylinder 75, a bottle blowing device 8, a blanking device 9, a shifting plate 10, a first notch 10a, a tail end 10b of the shifting plate, a bottle blank seat shifting device 11, a shifting sheet 11a and a third air cylinder 11 b; the star wheel 12, the gear 121, the second notch 122; a bottle blank seat 100 and a bottle blank 200.

Detailed Description

The structure of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, and the same parts as those in the prior art will be referred to in the present invention.

As shown in fig. 1-10, the present invention provides a bottle blowing machine, which comprises a frame 1, wherein a plurality of bottle blank seat stations 2 capable of bearing bottle blank seats 100 are formed on the frame 1, and as a specific implementation manner, the bottle blank seat stations 2 can be continuous channels capable of clamping the bottle blank seats 100 therein, as shown in fig. 1; each blank holder 100 may carry a blank 200, as shown in fig. 1, with only a portion of the blank holders 100 carrying the blanks 200.

The frame 1 is provided with a first conveying device, and the first conveying device can make the bottle blank seat 100 transmit along a conveying path, as a specific implementation manner, in this embodiment, the first conveying device is of a star wheel disc 12 structure, the star wheel disc 12 is located between a first distance adjusting station and a heating station, and under a common working condition, the bottle blank seat 100 is reduced in distance on the first distance adjusting station, that is, the relative distance between the loaded bottle blank seats 100 is narrowed. The bottle preform holders after the shrinkage are continuously conveyed into the heating device by the star wheel disc 12. The star wheel disc 12 is provided with a plurality of gears 121 which are distributed at equal intervals, second notches 122 which can partially accommodate bottle blank seats are formed between adjacent gears, each second notch 122 can accommodate one or more bottle blank seats, and in the embodiment, each second notch 122 can accommodate two bottle blank seats, namely, two bottle blank seats can be shifted when the star wheel disc rotates one gear. The planetary wheel 12 rotates at a constant speed under the action of a fourth power device, which adopts a power device in the prior art, such as a motor or a servo motor. The star wheel 12 is continuously rotated at a set rotational speed to continuously transport the parison base 100 along a transport path, as indicated by the arrow in fig. 1.

The machine frame 1 is sequentially provided with a feeding station, a first distance adjusting station, a heating station, a second distance adjusting station, a bottle blowing station and a discharging station along a conveying path, wherein the first distance adjusting station adjusts the fed bottle blank seat to a distance suitable for heating, and the second distance adjusting station adjusts the heated bottle blank seat to a distance suitable for blowing. Under a common working condition, the bottle blank seats 100 are reduced in distance on the first distance adjusting station, so that the bottle blank seats can enter the heating device to be heated as tightly as possible, and the heating efficiency is improved; likewise, in a more common operating mode, the preform holders 100 are pitched at the second pitch station so that the pitch between the preform holders to be fed into the bottle blowing apparatus matches the pitch of the mold cavities in the bottle blowing apparatus. In other operating conditions, if the parison blowing tool forms a small-volume plastic container, and the distance between the parison seats is small enough and/or large enough, the relative distance between the parisons does not need to be adjusted in the first and/or second distance adjusting stations, but only needs to be adjusted relative to the other parisons in front of the conveying path. Therefore, the first and second adjustments should be understood broadly herein to encompass the different operating conditions described above.

The first distance adjusting station is provided with a first distance adjusting device, and the second distance adjusting station is provided with a second distance adjusting device 7.

As a specific implementation manner, an automatic feeding device 4 is arranged at the feeding station, and the bottle blanks 200 are automatically fed according to a set time interval.

As a specific implementation mode, a heating device 6 is arranged on a heating station, and the heating device 6 heats the fed bottle blank through the reduction pitch, so that the bottle blank is softened and is convenient for bottle blowing. In this embodiment, the heating device 6 is a plurality of heating drying tunnels 6a arranged along the conveying path, as shown in fig. 1,2, 7 and 9.

As a specific implementation manner, a bottle blowing device 8 is arranged on the bottle blowing station, and the bottle blowing device 8 can have a single bottle blowing chamber or a plurality of bottle blowing chambers, so that a single plastic container or a plurality of plastic containers can be molded by one-time blowing.

As a specific implementation mode, a blanking device 9 is arranged on a blanking station to automatically blank the plastic containers formed by a blowing tool of a bottle blowing device 8.

As a specific implementation, the second distance adjusting device 7 comprises a group of blank taking mechanisms which can extend, translate, retract and reset under the action of the first power device;

the bottle blowing machine further comprises a shifting plate 10, wherein N groups of first notches 10a are arranged on the shifting plate 10, N is more than or equal to 3, each group of first notches 10a comprises M first notches 10a, M is more than or equal to 1 and less than or equal to 10, each first notch 10a can at least partially accommodate the bottle blank seat, and the shifting plate can extend, translate, retract and reset under the action of a second power device;

taking the example that the shifting plate 10 is provided with three groups of first notches, each group having two first notches 10a, as shown in fig. 1 and 3, the three groups of first notches respectively correspond to the bottle blank seats at the second distance adjusting station, the bottle blowing station and the blanking station in a reset state, and respectively correspond to the bottle blank seats at the bottle blowing station, the blanking station and the feeding station in a shifting state;

fig. 4 shows another schematic structural diagram of the shifting plate 10, as shown in the figure, three groups of first notches are arranged on the shifting plate 10, each group has only one first notch 10a, the first notch in each group respectively corresponds to the bottle blank seats at the second distance adjusting station, the bottle blowing station and the blanking station in the reset state, and respectively corresponds to the bottle blank seats at the bottle blowing station, the blanking station and the feeding station in the moving-out state; the structure is suitable for forming small-volume plastic containers by a bottle blank blowing device, relative distances of a group of bottle blank seats to be fed into the bottle blowing device do not need to be adjusted on the second distance adjusting station (the distance between the bottle blank seats is large enough), the shifting plate 10 only needs to move the group of bottle blank seats to a station waiting for bottle blowing, and distance increase is not needed between the group of bottle blank seats. Each first slot 10a can now accommodate a set of blank holders, fig. 4 showing a set of three blank holders.

As a specific implementation manner, the second distance adjusting device 7 includes a group of blank taking mechanisms, the number of the group of blank taking mechanisms is P, and P is greater than or equal to 1 and less than or equal to 10.

M, P, the maximum value of the value is suitable for the model of the bottle blowing machine, if the bottle blowing machine is three, the maximum value of M, P is 3, and if the bottle blowing machine is four, the maximum value of M, P is 4. When the relative distance of a group of bottle blanks to be fed into the bottle blowing device needs to be adjusted on the second distance adjusting station, the value of M, P is the maximum value.

In the relation of corresponding numerical values M, P, when the bottle blank needs to be separated, the two are equal, so that the adjustment of the distance between the bottle blank seats is completed simultaneously when the group of blank taking mechanisms moves the bottle blank seats to the bottle blowing waiting station, and the shifting plate keeps the distance and moves the bottle blank seats to the bottle blowing station.

As a specific implementation manner, in the present invention, the set of preform taking mechanisms is a set of preform forks 71, and in this embodiment, the number of the set of preform forks 71 is two. The group of bottle blank forks can extend, open, retract and reset under the action of the first power device. As a specific implementation manner for driving the preform fork 71 to act, the preform fork 71 is slidably mounted on a mounting frame 72, the mounting frame 72 is slidably mounted on the rack 1, the preform fork can horizontally move on the mounting frame to implement relative displacement between the preform forks 71, so that a group of preform forks 71 are opened and reset, and the mounting frame 72 can vertically move on the rack 1 to vertically displace a group of preform forks 71 relative to the rack, so as to implement extension and retraction of a group of preform forks 71; as a specific implementation, the first power device for driving the set of bottle blank forks 71 may be an air cylinder or an electric motor, or a combination of the air cylinder and the electric motor, and the first power device includes a first horizontal power device and a first vertical power device, the first horizontal power device includes a set of connecting rods 73 and a power source for driving the set of connecting rods to contract and open, and is referred to as an air cylinder herein and is named as a first air cylinder 74; the bottle blank fork 71 is connected with the connecting rod 73, and the first air cylinder 74 acts to enable the group of connecting rods 73 to be mutually gathered and opened, so that the group of bottle blank forks 71 connected with the first air cylinder is opened and reset, and the variable pitch of the bottle blank seat 100 is realized; a first vertical power device, which may be an air cylinder or a motor, in this embodiment, an air cylinder, herein designated as a second air cylinder 75, is connected to the mounting bracket and drives the mounting bracket 72 to move in the vertical direction; as shown in fig. 1-7, wherein fig. 1,2 show the link structure, and fig. 5, 7,10 omit it.

Taking the example of the shifting plate 10 having three sets of first notches, each set having two first notches 10a, the number of preform forks 71 corresponds to the number of first notches of each set, here two. At this time, when the bottle preform seat enters the second distance adjusting station, each bottle preform fork 71 holds the bottom of one bottle preform seat and moves the bottle preform seat to a station waiting for bottle blowing, and then the displacement plate 10 moves the bottle preform seat into the bottle blowing device. Under the working condition that distance increase is needed, the distance between the corresponding bottle blank seats is adjusted to a set distance by the group of bottle blank forks 71 in the process of moving the bottle blank seats. Under some working conditions without increasing the distance, the bottle blank fork only needs to move the bottle blank seat to a station waiting for bottle blowing, at this time, one group of bottle blank forks 71 can also only have one bottle blank fork 71, and the opening of one bottle blank fork 71 is enlarged, so that a plurality of bottle blank seats can be at least partially accommodated.

In the present invention, the "removed state" refers to a position where the displacement plate 10 is located after the extending and translating (leftward translation direction in fig. 1) operation. The second power device includes a second horizontal power device and a second vertical power device, which may be a cylinder and a motor, respectively. In fig. 5, a part of the members located above the shifting plate 10 is omitted in order to show the structure thereof.

When the shifting plate 10 moves leftwards from the initial state (reset state), the bottle blank seat (bottle blank) after the distance increase by the second distance adjusting device is moved to the bottle blowing device, the bottle blank seat (plastic container) after the bottle blowing process is moved to the blanking device, and the bottle blank seat (bottle blank) after the feeding device is moved to the direction of the star wheel disk. During the movement, the end of the shifting plate 10 (i.e. the end of the shifting plate 10 facing the starwheel disk) will impact and squeeze the bottle blank seats in front of the traveling path to shorten the distance between the bottle blank seats in front of the traveling path, thereby generating the effect of distance reduction. In order to obtain better implementation effect, the end of the shifting plate 10 exceeds the length D set by the first notch at the end, and the length D can be designed according to the machine type of the bottle blowing machine, so that the end of the shifting plate 10 has sufficient distance reducing effect on the bottle blank seat located in front of the traveling route thereof, as shown in fig. 3. In the above embodiment, the displacement plate 10, specifically, the end of the displacement plate 10 constitutes the first pitch adjusting device of the bottle blowing machine.

In other implementations, four sets of first notches may also be formed in the shifting plate 10. The four groups of first notches respectively correspond to the bottle blank seats at the second distance adjusting device 7, the bottle blowing device 8, the blanking device 9 and the automatic feeding device 4 in a reset state, and respectively correspond to the bottle blank seats at the bottle blowing device 8, the blanking device 9, the automatic feeding device 4 and the distance reduction station in a moving-out state. The working process and working principle of the four groups of first notches are similar to those of the three groups of first notches, and are not described herein.

In order to obtain a better implementation effect, a bottle blank pushing seat device 11 is further arranged on the rack, and the bottle blank pushing seat device 11 accelerates the bottle blank seat 100 loaded by the automatic loading device 4 to move to the direction of the star wheel disc 12; as a specific implementation manner, the bottle blank pushing seat device 11 includes a pushing sheet 11a and a third power device for driving the pushing sheet to reciprocate along the bottle blank conveying path, and the third power device includes a third horizontal power device, which may be a cylinder, a motor or a servo motor; here a cylinder, here denominated third cylinder 11 b. The bottle blank pushing seat device 11 can independently form a first distance adjusting device of the bottle blowing machine; the bottle blank pushing seat device 11 and the shifting plate 10 can also form a first distance adjusting device of the bottle blowing machine together.

For better implementation, a second conveyor 5 is provided on the machine frame below the automatic feeding device 4 and the heating device 6 (at the first distance-adjusting station), the second conveyor having a conveyor belt and a transmission wheel, the conveyor belt being in contact with the bottom of the preform holder 100. Fig. 6 and 9. The belt rotates continuously, so that the bottle blank seat 100 contacting with the belt moves continuously towards the star wheel disc 12 and is abutted with the bottle blank seat 100 positioned in front of the belt on the conveying path, and a continuous pre-tightening force is provided, so that the adjacent bottle blank seats 100 are closely arranged. The second conveying device 5 can independently form a first distance adjusting device of the bottle blowing machine; the second conveying device 5 can also be combined with the shifting plate 10 or the bottle blank base shifting device 11 to form a first distance adjusting device of the bottle blowing machine; the second conveying device 5 can also be combined with the shifting plate 10 and the bottle blank base shifting device 11 to form a first distance adjusting device of the bottle blowing machine.

Of course, the utility model may also have embodiments, such as the automatic feeding device 4 may be replaced by a manual feeding; the first conveying device can also adopt other power devices which can enable the bottle blank seat to continuously operate; the blank taking mechanism can adopt a rod-shaped structure inserted into the bottle blank and the like.

In the utility model, the x direction in fig. 1 is defined as the horizontal direction, the y direction is defined as the vertical direction, the displacement of each component in the vertical direction is defined as the extending and retracting action, specifically, the displacement in the direction close to the bottle blank seat is defined as the extending, and the displacement in the direction far away from the bottle blank seat is defined as the extending and retracting action; the displacement of each part in the horizontal direction is defined as a translational motion. When the blank taking mechanism can adopt a rod-shaped structure inserted into the bottle blank, the displacement of the blank taking mechanism in the z direction in fig. 7 is an extending and retracting action, and specifically, the displacement in the direction close to the bottle blank seat is defined as extending, and the displacement in the direction far away from the bottle blank seat is defined as extending and retracting.

It should be noted that in the description of the present invention, the terms "vertical", "horizontal", and the like indicate the orientation, direction, or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "in some instances" are to be construed broadly, e.g., as either a fixed connection or a removable connection; may be a mechanical connection; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the descriptions of "first," "second," etc. are merely for convenience of distinguishing and illustration, and do not represent the relative importance of the elements they represent; the specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a bottle blowing machine, includes frame (1), form bottle base seat station (2) that can bear bottle base seat (100) on frame (1), be provided with first conveyor in the frame, first conveyor can make bottle base seat (100) along the transmission path transmission, its characterized in that: a feeding station, a first distance adjusting station, a heating station, a second distance adjusting station, a bottle blowing station and a discharging station are sequentially arranged on the machine frame along a conveying path, the first distance adjusting station adjusts the fed bottle blank seat to a distance suitable for heating, a first distance adjusting device is arranged on the first distance adjusting station, the second distance adjusting station adjusts the heated bottle blank seat to a distance suitable for bottle blowing, a second distance adjusting device (7) is arranged on the second distance adjusting station, the second distance adjusting device (7) comprises a group of blank taking mechanisms, and the group of blank taking mechanisms can extend, translate, retract and reset under the action of a first power device; the bottle blowing machine further comprises a shifting plate (10), N groups of first notches (10a) are arranged on the shifting plate (10), N is more than or equal to 3, each group of first notches (10a) comprises M first notches (10a), M is more than or equal to 1 and less than or equal to 10, each first notch (10a) can at least partially accommodate the bottle blank seat, and the shifting plate can extend, translate, retract and reset under the action of a second power device; the N groups of first notches (10a) at least comprise three groups, wherein the three groups of first notches respectively correspond to bottle blank seats at the second distance adjusting station, the bottle blowing station and the blanking station in a reset state, and respectively correspond to the bottle blank seats at the bottle blowing station, the blanking station and the feeding station in a moving-out state; the number of the blank taking mechanisms in the group is P, and P is more than or equal to 1 and less than or equal to 10.

2. The bottle blowing machine of claim 1, wherein: p is more than or equal to 2 and less than or equal to 10, and M is P.

3. The bottle blowing machine of claim 1, wherein: the end of the shifting plate (10) constitutes the first distance adjusting device.

4. The bottle blowing machine of claim 1, wherein: a bottle blank pushing seat device (11) is further arranged on the rack, and the bottle blank pushing seat device (11) accelerates the loaded bottle blank seat (100) to move to the direction of a heating station; the bottle blank pushing seat device (11) comprises a pushing sheet (11a) and a third power device for driving the pushing sheet (11a) to reciprocate along a bottle blank conveying path.

5. The bottle blowing machine of any one of claims 1-4, wherein: and a second conveying device (5) is arranged on the rack and below the first distance adjusting station, and is provided with a conveying belt and a driving wheel, and the conveying belt is contacted with the bottom of the bottle blank seat (100).

6. The bottle blowing machine of claim 1, wherein: n is 4, form 4 first notches of group (10a) on shifting board (10), the bottle base seat that second roll adjustment station, bottle blowing station, unloading station and material loading station department are respectively corresponded to these four first notches of group under the reset condition, and under the state of shifting out, the bottle base seat that corresponds bottle blowing station, unloading station, material loading station and first roll adjustment station department respectively.

7. The bottle blowing machine of claim 1, wherein: the blank taking mechanism is a bottle blank fork (71), the bottle blank fork (71) is slidably mounted on a mounting frame (72), the mounting frame is slidably mounted on the rack (1), the bottle blank fork can horizontally move on the mounting frame to translate and reset, and the mounting frame (72) can vertically move on the rack to enable the bottle blank fork to extend out and retract.

8. The bottle blowing machine of claim 7, wherein: the first power device comprises a first horizontal power device and a first vertical power device, the first horizontal power device comprises a group of connecting rods (73) and a power source for driving the group of connecting rods to contract and open, and the bottle blank fork (71) is connected with the connecting rods (73); the first vertical power device is connected with the mounting frame and can drive the mounting frame to move in the vertical direction.

9. The bottle blowing machine of claim 1, wherein: the blank taking mechanism is a blank taking rod which can be inserted into the bottle blank cavity.

10. The bottle blowing machine of claim 1, wherein: the first conveying device is a star wheel disc (12) positioned between the first distance adjusting station and the heating station, a plurality of gears (121) are distributed on the star wheel disc at equal intervals, a second notch (122) capable of partially accommodating a bottle blank seat is formed between every two adjacent gears, and the star wheel disc rotates at a constant speed under the action of a fourth power device; the second slot (122) may receive one or more blank holders.

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