Blank feeding device of bottle blowing machine and bottle blowing machine

Abstract

The invention belongs to the technical field of bottle blowing machines, and discloses a blank feeding device of a bottle blowing machine and the bottle blowing machine. The blank feeding device comprises a left blank feeding seat, a right blank feeding seat, a blank feeding star wheel, a blank blocking mechanism and a telescopic mechanism, the left blank feeding seat and the right blank feeding seat are arranged at an interval and define a blank feeding channel, one of the left blank feeding seat and the right blank feeding seat is provided with a bottle blowing air nozzle, the blank feeding channel is provided with a notch, the blank feeding star wheel is provided with a plurality of wheel teeth, and part of the wheel teeth are located in the blank feeding channel; when the blank feeding star wheel rotates, bottle blanks in the blank feeding channel can be pushed to move, the blank blocking mechanism is provided with a blank blocking piece capable of stretching into the blank feeding channel from the notch so as to block the bottle blanks from moving, and the telescopic mechanism is provided with a movable piece corresponding to the notch. According to the blank feeding device, when the tooth tips of the blank feeding star wheel abut against the bottle blanks, the bottle blanks can be discharged out of the blank feeding channel in time, the phenomenon of blank feeding overload is avoided, and the sudden stop probability of equipment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blowing machines, and in particular to a preform feeding device of a bottle blowing machine and the bottle blowing machine. Background Art

[0002] The main processes of bottle blowing machine to form bottle preforms into bottles are preform sorting, heating and blow molding. After the preform sorting process, the preform enters the preform feeding star wheel, and then runs to the heating machine. With the development of market demand, the output requirements of bottle blowing machines are getting higher and higher, and the machine speed is also getting higher and higher. When the bottle preform enters the preform feeding star wheel, it is easy to get stuck and the preform feeding overload problem occurs, causing the equipment to stop suddenly, increasing production costs, and easily damaging parts.

[0003] At present, the preform feeding method of the bottle blowing machine is that the bottle preform enters the left and right preform feeding seats from the lower preform slide, and then transitions from the left and right preform feeding seats to the preform feeding star wheel. The bottle preform slides down and enters the preform feeding star wheel by its own gravity. If the preform unscrambler fails to deliver the bottle preform in time, resulting in insufficient thrust, or the bottle preform jumps, and the support rings of two adjacent bottle preforms are stacked together, the bottle preform will not be able to smoothly enter the preform feeding star wheel. The tip of the tooth of the preform feeding star wheel will press against the bottle preform, causing the preform feeding overload and causing the equipment to stop suddenly. Summary of the invention

[0004] The object of the present invention is to provide a preform feeding device for a bottle blowing machine, which can promptly discharge the preform from a preform feeding channel when the tooth tip of a preform feeding star wheel presses against the preform, thereby avoiding the occurrence of preform feeding overload and reducing the probability of emergency stop of the equipment.

[0005] The second object of the present invention is to provide a bottle blowing machine, which can quickly discharge the bottle preforms that are skewed during the preform feeding process, avoid the phenomenon of preform feeding overload, and reduce the probability of emergency stop of the equipment.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention discloses a preform feeding device of a bottle blowing machine, comprising: a left preform feeding seat and a right preform feeding seat, the left preform feeding seat and the right preform feeding seat are arranged at intervals and define a preform feeding channel, one of the left preform feeding seat and the right preform feeding seat is provided with a bottle blowing nozzle, and the preform feeding channel has a notch; a preform feeding star wheel, the preform feeding star wheel is provided with a plurality of gear teeth, part of the gear teeth are located in the preform feeding channel, and the preform feeding star wheel can push the bottle preform in the preform feeding channel to move when rotating; a preform blocking mechanism, the preform blocking mechanism has a preform blocking member that can extend into the preform feeding channel from the notch to block the movement of the bottle preform; a telescopic mechanism, the telescopic mechanism has a movable member arranged corresponding to the notch; the skewed bottle preform can move in a direction away from the preform feeding star wheel under the action of the tooth tip of the gear tooth so that the movable member retracts, and at the same time, the preform blocking member is inserted into the preform feeding channel to block the subsequent preform from continuing to move, and the bottle blowing nozzle can blow the skewed bottle preform out of the preform feeding channel.

[0008] In some embodiments, the telescopic mechanism also includes a driving cylinder and a first detection member, and the piston rod of the driving cylinder is connected to the movable member; the first detection member is used to detect the stroke of the movable member, and when the stroke of the movable member reaches a first specified stroke, the piston rod of the driving cylinder automatically retracts, and the embryo blocking member is inserted into the embryo feeding channel to prevent the subsequent bottle embryo from continuing to move.

[0009] In some specific embodiments, the first specified stroke is 2.5 mm-3 mm.

[0010] In some specific embodiments, the telescopic mechanism further includes a counter, which is used to record the number of times the first detection member is triggered. When the number of times the first detection member is triggered reaches a specified number within a first specified time period, the preform feeding device of the bottle blowing machine stops.

[0011] In some specific embodiments, the telescopic mechanism also includes a second detection member, which is used to detect the stroke of the piston rod. The second detection member can be triggered when the stroke of the piston rod reaches a second specified stroke. After the triggering time of the second detection member reaches the second specified time, the piston rod of the driving cylinder automatically extends, and the embryo blocking member leaves the embryo feeding channel to release the subsequent bottle embryo to continue moving.

[0012] In some specific embodiments, the second specified time length is 4 seconds to 6 seconds.

[0013] In some embodiments, the bottle blowing nozzle is installed at one end of the right blank feeding seat close to the telescopic mechanism.

[0014] In some embodiments, the embryo stop mechanism includes: a mounting seat having a through hole; and an embryo stop driving component, the embryo stop driving component is mounted on the mounting seat, the embryo stop component is mounted on the power output end of the embryo stop driving component and is penetrated through the through hole.

[0015] In some embodiments, the preform feeding device of the bottle blowing machine further includes a guard plate, which is arranged around the preform feeding star wheel and is located radially outside the preform feeding star wheel, and a preform removal channel is defined between the guard plate and the preform feeding star wheel.

[0016] The present invention further discloses a bottle blowing machine, comprising the preform feeding device of the bottle blowing machine and a frame as described above, wherein the preform feeding device of the bottle blowing machine is installed on the frame.

[0017] The beneficial effect of the preform feeding device of the bottle blowing machine of the present invention is as follows: in the actual working process, if the preform is skewed, the skewed preform will be squeezed by the gear when entering the preform feeding star wheel from the preform feeding channel, and when the preform passes through the notch, it will move away from the direction of the preform feeding star wheel to make the movable part retract, and when the movable part retracts, the preform blocking part is inserted into the preform feeding channel from the notch to block the subsequent preform from continuing to move, and the bottle blowing air nozzle can quickly blow air toward the stuck preform to make it disengage from the preform feeding star wheel, avoid preform feeding overload, and thus reduce the probability of emergency stop of the equipment.

[0018] The beneficial effects of the bottle blowing machine of the present invention are as follows: due to the preform feeding device of the bottle blowing machine as described above, when the bottle preform is stuck on the tooth tip of the preform feeding star wheel, on the one hand, the preform blocking mechanism can prevent the subsequent bottle preform from continuing to move, and on the other hand, the bottle blowing air can be quickly blown toward the stuck bottle preform to make it separate from the preform feeding star wheel, thereby avoiding the phenomenon of preform feeding overload in the bottle blowing machine, thereby reducing the probability of emergency stop of the equipment.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a schematic structural diagram of a preform feeding device of a bottle blowing machine according to an embodiment of the present invention when the preform is normally fed;

[0021] Figure 2 2 is a schematic structural diagram of a preform feeding device of a bottle blowing machine according to an embodiment of the present invention when a preform is fed abnormally;

[0022] Figure 3 yes Figure 2 A schematic structural diagram of the structure from another angle.

[0023] Reference numerals:

[0024] 100, left embryo feeding seat; 200, right embryo feeding seat; 300, embryo feeding channel; 310, notch; 400, embryo feeding star wheel; 410, gear; 500, embryo blocking mechanism; 510, embryo blocking member; 520, mounting seat; 530, embryo blocking driving member; 600, telescopic mechanism; 610, movable member; 620, driving cylinder; 700, bottle blowing nozzle; 800, guard plate; 810, embryo walking channel; 900, rack; 10, bottle embryo. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the description of this embodiment, the terms "upper", "lower", "left", "right", "front", "rear" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] The present invention discloses a preform feeding device for a bottle blowing machine, referring to Figure 1 and Figure 2As shown, the embryo feeding device of the bottle blowing machine includes a left embryo feeding seat 100, a right embryo feeding seat 200, an embryo feeding star wheel 400, an embryo blocking mechanism 500 and a telescopic mechanism 600. The left embryo feeding seat 100 and the right embryo feeding seat 200 are arranged at intervals and define an embryo feeding channel 300. A bottle blowing air nozzle 700 is provided on one of the left embryo feeding seat 100 and the right embryo feeding seat 200. The embryo feeding channel 300 has a notch 310. The embryo feeding star wheel 400 is provided with a plurality of gear teeth 410, and some of the gear teeth 410 are located in the embryo feeding channel 300. When the embryo feeding star wheel 400 rotates, it can push the embryo feeding channel 300. The preform 10 in the preform feeding channel 300 moves, the preform blocking mechanism 500 has a preform blocking member 510 that can extend from the notch 310 into the preform feeding channel 300 to block the movement of the preform 10, and the telescopic mechanism 600 has a movable member 610 arranged corresponding to the notch 310; the skewed preform 10 can move in a direction away from the preform feeding star wheel 400 under the action of the tooth tip of the gear 410 so that the movable member 610 retracts, and at the same time, the preform blocking member 510 is inserted into the preform feeding channel 300 to block the subsequent preform 10 from continuing to move, and the blowing nozzle 700 can blow the skewed preform 10 out of the preform feeding channel 300.

[0029] It is understandable that when a normal preform 10 enters the preform feeding star wheel 400 from the preform feeding channel 300, Figure 1 As shown in FIG. 1 , the preform 10 is just stuck in the tooth groove of the gear 410 of the preform feeding star wheel 400. At this time, the preform 10 will not be squeezed by the tooth tip of the gear 410, and the movable part 610 will not be squeezed when the preform 10 passes through the notch 310. If the preform 10 is skewed, the skewed preform 10 will enter the preform feeding star wheel 400 from the preform feeding channel 300. Figure 2 As shown, the preform 10 will be squeezed by the gear 410. When the preform 10 passes through the notch 310, it will move away from the preform feeding star wheel 400 to make the movable member 610 retract. When the movable member 610 retracts, the preform blocking member 510 is inserted into the preform feeding channel 300 from the notch 310 to prevent the subsequent preform 10 from continuing to move. The blowing nozzle 700 can quickly blow air toward the stuck preform 10 to make it disengage from the preform feeding star wheel 400, thereby avoiding preform feeding overload and reducing the probability of emergency stop of the equipment.

[0030] refer to Figure 1 and Figure 3As shown, the telescopic mechanism 600 also includes a driving cylinder 620 and a first detection member (not shown in the figure), the piston rod of the driving cylinder 620 is connected to the movable member 610; the first detection member is used to detect the stroke of the movable member 610, when the stroke of the movable member 610 reaches the first specified stroke, the piston rod of the driving cylinder 620 automatically retracts, and the stopper 510 is inserted into the embryo feeding channel 300 to prevent the subsequent preform 10 from continuing to move. It can be understood that in the actual working process, when the skewness of the preform 10 is relatively small, it will not affect the normal embryo feeding. If the preform 10 with a relatively small skewness is also blown out of the embryo feeding channel 300, the embryo feeding efficiency of the embryo feeding device of the bottle blowing machine will be reduced. In this embodiment, the first detection member is added, and only when the first detection member detects that the stroke of the movable member 610 reaches the first specified stroke, the piston rod of the driving cylinder 620 will automatically retract, and the stopper 510 will be inserted into the embryo feeding channel 300 to prevent the subsequent preform 10 from continuing to move. Such an arrangement can prevent the preforms 10 with a small degree of skewness from being blown out of the preform feeding channel 300 during the preform feeding process, thereby facilitating ensuring the preform feeding efficiency of the preform feeding device of the bottle blowing machine.

[0031] It should be supplemented that, in the embodiment of the present invention, the first detection member is a magnetic detection switch. Of course, in other embodiments of the present invention, the first detection member may also be other types of sensors according to actual needs.

[0032] Optionally, the air pressure of the driving cylinder 620 can be set to 2 bar to 3 bar, and the thrust of the driving cylinder 620 needs to be smaller than the value protected by the torque limiter of the preform feeding device of the blow molding machine, so as to avoid excessive thrust of the driving cylinder 620 affecting the normal operation of the preform feeding device of the blow molding machine.

[0033] Optionally, the first designated stroke is 2.5 mm-3 mm. Specifically, the designated stroke can be 2.5 mm, 2.51 mm, 2.52 mm, 2.53 mm, 2.54 mm, 2.55 mm, 2.56 mm, 2.57 mm, 2.58 mm, 2.59 mm, 2.6 mm, 2.61 mm, 2.62 mm, 2.63 mm, 2.64 mm, 2.65 mm, 2.66 mm, 2.67 mm, 2.68 mm, 2.69 mm, 2.7 mm, 2.71 mm, 2.72 mm, 2.73 mm, 2.74 mm, 2.75 mm, 2.76 mm, 2.77 mm, 2.78 mm, 2.79 mm, 3. Of course, the first specified stroke can also be other values ​​within the range of 2.5mm-3mm and is not limited to the above examples. It is understandable that if the first designated stroke is set too small, the preforms 10 with a small skewness that does not affect the preform feeding process will be blown out of the preform feeding channel 300, while if the first designated stroke is set too large, the preforms 10 with a large skewness that affects the preform feeding process will cause preform feeding overload. In this embodiment, the first designated stroke is controlled between 2.5 mm and 3 mm, which can prevent the preforms 10 with a small skewness that does not affect the preform feeding process from being blown out of the preform feeding channel 300, thereby ensuring the preform feeding efficiency of the preform feeding device of the bottle blowing machine, and can ensure that the preforms 10 with a large skewness that affects the preform feeding process are stably discharged from the preform feeding channel 300, avoiding the occurrence of preform feeding overload.

[0034] It should be supplemented that, in other embodiments of the present invention, the size of the first designated stroke can be selected according to actual needs and is not limited to the above limitations.

[0035] Optionally, the telescopic mechanism 600 also includes a counter, which is used to record the number of times the first detection member is triggered. When the number of times the first detection member is triggered reaches a specified number within the first specified time, the preform feeding device of the blow molding machine is shut down. It can be understood that during the working process of the preform feeding device of the blow molding machine, the situation of the preform feeding being skewed should be an occasional fault state. If the preform feeding is skewed too much within a certain period of time, it means that the structure of the preform feeding device of the blow molding machine is damaged, such as the preform feeding star wheel 400 is skewed, the left preform feeding seat 100 and the right preform feeding seat 200 are skewed, etc., and it is necessary to shut down for maintenance. In this embodiment, a counter is added to record the number of times the first detection member is triggered, and when the number of times the first detection member is triggered reaches a specified number within the first specified time, the preform feeding device of the blow molding machine is shut down. In this way, the preform feeding device of the blow molding machine can be automatically shut down when a component failure occurs, which is convenient for users to repair. Further optionally, the first specified time is 30 minutes and the specified number of times is 5 times. It is understandable that if the first designated duration and the designated number of times are set too small, the probability of misjudgment will increase, and if they are set too large, the embryo feeding device will not be able to shut down as soon as possible when a component failure occurs. In this embodiment, the first designated duration is 30 minutes and the designated number of times is 5 times, which can ensure the judgment accuracy and reduce the probability of misjudgment, and can shut down as soon as possible when a component failure occurs in the embryo feeding device, which is convenient for staff to overhaul. Of course, in other embodiments of the present invention, the first designated duration and the designated number of times can be adjusted according to actual needs, and are not limited to the above examples.

[0036] It should be noted that the control logic of the counter, the first detection element and the driving cylinder 620 can be selected according to the existing technology in the field of automatic control, and there is no need to describe and limit the control logic of the counter, the first detection element and the driving cylinder 620 here.

[0037] Optionally, the telescopic mechanism 600 further includes a second detection member (not shown in the figure), which is used to detect the stroke of the piston rod. When the stroke of the piston rod reaches the second specified stroke, the second detection member can be triggered. After the triggering time of the second detection member reaches the second specified time, the piston rod of the driving cylinder 620 automatically extends, and the embryo stop member 510 leaves the embryo feeding channel 300 to release the subsequent bottle preform 10 to continue to move. It can be understood that by setting the second detection member, after the triggering time of the second detection member reaches the second specified time, the piston rod of the driving cylinder 620 automatically extends, and the embryo stop member 510 leaves the embryo feeding channel 300 to release the subsequent bottle preform 10 to continue to move, so that after the skewed bottle preform 10 is blown out of the embryo feeding channel 300, the movable member 610 returns to the position aligned with the notch 310 to prepare for the subsequent skewed bottle preform 10 to be squeezed, and at the same time, the embryo stop member 510 leaves the embryo feeding channel 300 to release the subsequent bottle preform 10 to continue to move, thereby ensuring the normal progress of the embryo feeding process.

[0038] Further optionally, the second specified duration is 4 seconds to 6 seconds. Specifically, the second specified duration can be 4.1 seconds, 4.2 seconds, 4.3 seconds, 4.4 seconds, 4.5 seconds, 4.6 seconds, 4.7 seconds, 4.8 seconds, 4.9 seconds, 5 seconds, 5.1 seconds, 5.2 seconds, 5.3 seconds, 5.4 seconds, 5.5 seconds, 5.6 seconds, 5.7 seconds, 5.8 seconds, 5.9 seconds. Of course, the second specified duration can also select other values ​​within the range of 4 seconds to 6 seconds according to actual needs, and is not limited to the above examples. It is understandable that if the second designated time is too short, the skewed preform 10 may not be blown out of the preform feeding channel 300, and the piston rod of the driving cylinder 620 may automatically extend, and the movable part 610 may return to the flush position under the push of the piston rod, thereby increasing the risk of preform feeding overload. If the second designated time is too long, the movable part 610 and the preform stopper 510 may not be reset for a period of time after the skewed preform 10 is blown out of the preform feeding channel 300, thereby reducing the preform feeding efficiency of the preform feeding device of the bottle blowing machine. In this embodiment, the second designated time is controlled between 4 seconds and 6 seconds, which can ensure that the movable part 610 and the preform stopper 510 are reset a short time after the skewed preform 10 is blown out of the preform feeding channel 300, which is conducive to ensuring the preform feeding efficiency of the preform feeding device of the bottle blowing machine.

[0039] It should be supplemented that, in the embodiment of the present invention, the second detection member is a magnetic detection switch. Of course, in other embodiments of the present invention, the second detection member may also be other types of sensors according to actual needs.

[0040] It should be supplemented that, in other embodiments of the present invention, the size of the second specified duration can be selected according to actual needs and is not limited to the above limitations.

[0041] refer to Figure 1-Figure 3 As shown, a bottle blowing nozzle 700 is installed at one end of the right embryo feeding seat 200 close to the telescopic mechanism 600. It can be understood that since the notch 310 is arranged between the right embryo feeding seat 200 and the embryo feeding star wheel 400, the bottle blowing nozzle 700 is installed at one end of the right embryo feeding seat 200 close to the telescopic mechanism 600, which can ensure that the bottle preform 10 that is skewed during the embryo feeding process is blown out of the embryo feeding channel 300. Optionally, a bottle blowing nozzle 700 can be added at the position corresponding to the notch 310 above the embryo feeding channel 300. Therefore, through the airflow of the two bottle blowing nozzles 700, it can be further ensured that the bottle preform 10 that is skewed during the embryo feeding process is blown out of the embryo feeding channel 300. The specific structure of the bottle blowing nozzle 700 and the connection method of the air path can be selected according to actual needs, and the relevant parameters of the bottle blowing nozzle 700 are not limited here.

[0042] refer to Figure 1-Figure 3As shown, the embryo blocking mechanism 500 includes a mounting seat 520 and an embryo blocking driving member 530, the mounting seat 520 has a through hole, the embryo blocking driving member 530 is mounted on the mounting seat 520, and the embryo blocking member 510 is mounted on the power output end of the embryo blocking driving member 530 and is penetrated through the through hole. It can be understood that in the actual working process, when the first detection member detects that the stroke of the movable member 610 reaches the first specified stroke, the piston rod of the driving cylinder 620 automatically retracts, and the embryo blocking driving member 530 drives the embryo blocking member 510 to move in the through hole and insert into the embryo feeding channel 300 to block the subsequent bottle preform 10 from continuing to move. By setting the embryo blocking driving member 530, the embryo blocking member 510 can be stably inserted into the embryo feeding channel 300 to block the movement of the subsequent bottle preform 10 during the working process, avoiding the phenomenon that the bottle blowing nozzle 700 blows out the subsequent bottle preform 10 that moves normally. The provided mounting seat 520 facilitates the installation of the embryo driver 530 on the one hand, and on the other hand, the perforation has the function of guiding the embryo stopper 510 to prevent the embryo stopper 510 from being skewed.

[0043] It should be additionally noted that, in an alternative embodiment of the present invention, the telescopic mechanism 600 may not include the driving cylinder 620, but may use a telescopic spring or a telescopic rod to connect the movable part 610, which can also achieve the function of causing the skewed bottle preform 10 to move in a direction away from the embryo feeding star wheel 400 under the action of the tooth tip of the gear 410 so that the movable part 610 can be retracted.

[0044] It should be additionally explained that, in an alternative embodiment of the present invention, the embryo stopping mechanism 500 may not include the embryo stopping driving member 530, but a linkage mechanism is provided, and when the movable member 610 retracts, the embryo stopping member 510 is linked with the movable member 610 so that the embryo stopping member 510 extends into the embryo entry channel 300.

[0045] refer to Figure 1-Figure 3 As shown, the preform feeding device of the bottle blowing machine further includes a guard plate 800, which is arranged around the preform feeding star wheel 400 and is located radially outside the preform feeding star wheel 400, and a preform removal channel 810 is defined between the guard plate 800 and the preform feeding star wheel 400. It can be understood that by providing the guard plate 800, a preform removal channel 810 is formed between the guard plate 800 and the preform feeding star wheel 400, ensuring that the preform 10 can be stably transported to the next station.

[0046] The present invention also discloses a bottle blowing machine, comprising the preform feeding device of the bottle blowing machine and a frame 900, wherein the preform feeding device of the bottle blowing machine is installed on the frame 900. Due to the preform feeding device of the bottle blowing machine described above, when the preform 10 is stuck on the tip of the gear 410 of the preform feeding star wheel 400, on the one hand, the preform blocking mechanism 500 can block the subsequent preform 10 from continuing to move, and on the other hand, the bottle blowing air can quickly blow toward the stuck preform 10 to make it separate from the preform feeding star wheel 400, thereby avoiding the phenomenon of preform feeding overload in the bottle blowing machine, thereby reducing the probability of emergency stop of the equipment.

[0047] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A preform feeding device for a bottle blowing machine, characterized in that: include: A left embryo entry seat (100) and a right embryo entry seat (200), wherein the left embryo entry seat (100) and the right embryo entry seat (200) are arranged at an interval and define an embryo entry channel (300), wherein one of the left embryo entry seat (100) and the right embryo entry seat (200) is provided with a bottle blowing nozzle (700), and the embryo entry channel (300) has a notch (310); an embryo feeding star wheel (400), wherein the embryo feeding star wheel (400) is provided with a plurality of gear teeth (410), and some of the gear teeth (410) are located in the embryo feeding channel (300), and when the embryo feeding star wheel (400) rotates, it can push the bottle preform (10) in the embryo feeding channel (300) to move; A preform blocking mechanism (500), the preform blocking mechanism (500) comprising a preform blocking member (510) capable of extending from the notch (310) into the preform feeding channel (300) to block the movement of the bottle preform (10); A telescopic mechanism (600), wherein the telescopic mechanism (600) has a movable part (610) arranged corresponding to the notch (310); The skewed preform (10) can move in a direction away from the preform feeding star wheel (400) under the action of the tooth tip of the gear (410) so that the movable part (610) retracts, and at the same time, the preform blocking part (510) is inserted into the preform feeding channel (300) to block the subsequent movement of the preform (10), and the bottle blowing nozzle (700) can blow the skewed preform (10) out of the preform feeding channel (300).

2. The preform feeding device of the bottle blowing machine according to claim 1, characterized in that: The telescopic mechanism (600) further comprises a driving cylinder (620) and a first detection member, wherein the piston rod of the driving cylinder (620) is connected to the movable member (610); the first detection member is used to detect the stroke of the movable member (610), and when the stroke of the movable member (610) reaches a first specified stroke, the piston rod of the driving cylinder (620) automatically retracts, and the embryo blocking member (510) is inserted into the embryo feeding channel (300) to block the subsequent bottle embryo (10) from continuing to move.

3. The preform feeding device of the bottle blowing machine according to claim 2, characterized in that: The first designated stroke is 2.5 mm-3 mm.

4. The preform feeding device of the bottle blowing machine according to claim 2, characterized in that: The telescopic mechanism (600) further comprises a counter, which is used to record the number of times the first detection member is triggered, and when the number of times the first detection member is triggered reaches a specified number within a first specified time period, the preform feeding device of the bottle blowing machine stops.

5. The preform feeding device of the bottle blowing machine according to claim 2, characterized in that: The telescopic mechanism (600) further comprises a second detection member, which is used to detect the stroke of the piston rod. When the stroke of the piston rod reaches a second specified stroke, the second detection member can be triggered. After the triggering time of the second detection member reaches the second specified time, the piston rod of the driving cylinder (620) automatically extends, and the embryo stopper (510) leaves the embryo feeding channel (300) to release the subsequent bottle embryo (10) to continue to move.

6. The preform feeding device of the bottle blowing machine according to claim 5, characterized in that: The second specified time length is 4 seconds to 6 seconds.

7. The preform feeding device of the bottle blowing machine according to claim 1, characterized in that: The bottle blowing nozzle (700) is installed at one end of the right embryo feeding seat (200) close to the telescopic mechanism (600).

8. The preform feeding device of the bottle blowing machine according to claim 1, characterized in that: The embryo retaining mechanism (500) comprises: A mounting seat (520), wherein the mounting seat (520) has a through hole; The embryo stopper driving component (530) is installed on the mounting seat (520), and the embryo stopper component (510) is installed on the power output end of the embryo stopper driving component (530) and is penetrated through the through hole.

9. The preform feeding device of the bottle blowing machine according to claim 1, characterized in that: The embryo feeding device of the bottle blowing machine also includes a guard plate (800), which is arranged around the embryo feeding star wheel (400) and is located radially outside the embryo feeding star wheel (400), and a embryo removal channel (810) is defined between the guard plate (800) and the embryo feeding star wheel (400).

10. A bottle blowing machine, characterized in that: It comprises a preform feeding device and a frame (900) of a bottle blowing machine as described in any one of claims 1 to 9, wherein the preform feeding device of the bottle blowing machine is installed on the frame (900).

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