Bottle blowing device and bottle blowing machine

Abstract

The utility model relates to a bottle blowing device and a bottle blowing machine. An existing bottle blowing device is high in cost and affects use experience. The bottle blowing machine comprises a machine frame, a mold mechanism and a bottle blowing mechanism, the mold mechanism and the bottle blowing mechanism are arranged on the machine frame, the bottle blowing mechanism comprises a bottle blowing rod capable of moving vertically and a driving assembly driving the bottle blowing rod to ascend and descend, and the driving assembly comprises a vertical transmission part arranged on the machine frame and a motor fixedly connected to the bottle blowing rod. And the motor drives the bottle blowing rod to descend to the bottle blowing station along the transmission piece by combining with the self gravity so as to reduce the rated load of the motor. The positions of the motor and the rack are exchanged, the motor is fixedly connected to the support of the bottle blowing rod, bottle blanks are stretched downwards through the gravity of the motor and the acting force generated by the motor, the power of the motor can be reduced, the structure is simple, the manufacturing cost is reduced, the motor can operate upwards, the weight of the motor and the support is increased, and the requirement for the power of the motor is lowered; the equipment cost is reduced, the operation cost is also reduced, and the use experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic processing, concretely relates to a bottle blowing device and bottle blowing machine. BACKGROUND

[0002] The existing bottle blowing machine comprises a rack and a heating device, a conveying device and a bottle blowing device arranged on the rack, a bottle blank is softened by heat in the heating device, is transferred to the bottle blowing device by the conveying device and is blown into a bottle body. The bottle blowing device comprises a mold mechanism and a bottle blowing mechanism, the mold mechanism comprises a mold plate which can be opened and closed, and the bottle blowing mechanism comprises a bottle blowing rod which can be lifted, the bottle blank softened by heat is clamped in a mold cavity formed by the closed mold plate, the bottle blowing rod is lowered and blows high-pressure gas after the bottle blank is stretched in place, so that the bottle blank expands and is consistent with the profile of the mold cavity, thereby completing the bottle blowing operation. The existing bottle blowing mechanism drives the bottle blowing rod to lift through a driving assembly, the driving assembly comprises a motor provided on the rack and provided with a gear and a rack provided on the bottle blowing rod, the rack drives the bottle blowing rod to lift synchronously under the drive of the gear, since the bottle blowing rod needs to resist the anti-deformation force of the bottle blank after being inserted into the bottle blank, a higher requirement is put forward for the rated power of the motor to ensure that the bottle blank can be stretched to place by the bottle blowing rod, which not only increases the equipment cost due to the cooperation of the high-power motor, but also causes the waste of electric energy when the bottle blowing rod rises due to the excessive power of the motor, increases the operation cost and affects the use experience. SUMMARY

[0003] In order to solve the defects of the prior art, the utility model provides a kind of bottle blowing device and bottle blowing machine, the position of motor and rack is exchanged, motor is fixedly connected on bottle blowing rod, utilize motor self gravity to offset part of the anti-deformation force of bottle blank, to reduce the requirement for motor power, which reduces equipment cost, also reduces operation cost, improves use experience.

[0004] The utility model realizes by the following way: a kind of bottle blowing device, including rack and the mold mechanism and bottle blowing mechanism of setting on rack, the bottle blowing mechanism includes the bottle blowing rod of vertical displacement and the driving assembly of driving bottle blowing rod to lift, the driving assembly includes the vertical transmission part of setting on rack and the motor of being fixedly connected on bottle blowing rod, motor is driven along transmission part to descend to bottle blowing station by self gravity, to reduce the rated load of motor. The position of motor and rack is exchanged, motor is fixedly connected on bottle blowing rod, utilize motor self gravity to offset part of the anti-deformation force of bottle blank, so that motor is stretched bottle blank by self gravity and the force generated by power, reduce the requirement for motor power, which can use motor of smaller rated power, simple structure, effectively reduce equipment cost, effectively reduce the energy consumption of motor when driving bottle blowing machine to lift, reduce operation cost, improve use experience.

[0005] As preferred, the motor can ascend along the transmission member and drive the blow molding rod to ascend to the idle station. When the blow molding rod descends, the gravity of the motor itself and the driving force generated by the energization of the motor cooperate to form the force for stretching the bottle blank, so that the blow molding rod switches to the blow molding station. When the blow molding rod ascends, the driving force generated by the energization of the motor is used to offset the gravity of the motor and the blow molding rod and realize the switching to the idle station, so that the blow molding device can use a motor with smaller rated power.

[0006] As preferred, the transmission member is a rack fixed on the frame, and a gear is arranged on the rotating shaft of the motor. The gear is engaged with the rack and drives the blow molding rod to ascend and descend by the motor. The rack is fixed on the frame to provide support force for the motor, so as to ensure that the motor can be engaged with the rack by the rotating gear and complete the ascending and descending control.

[0007] As preferred, a vertical mounting plate is arranged above the mold mechanism on the frame, and the rack is fixed on the mounting plate. The mounting plate is fixed on the frame in a vertical posture, which supports the blow molding mechanism and ensures that the motor and the blow molding rod can ascend and descend within a predetermined range.

[0008] As preferred, a vertical movable groove for the motor to ascend and descend is arranged in the middle of the mounting plate, and the rack is arranged on the side edge of the movable groove. The movable groove is arranged in the middle of the mounting plate to provide a space for the motor to ascend and descend. The mounting plate can obtain better structural strength by using the two side areas of the movable groove, thereby providing effective positioning for the rack and the guide rail.

[0009] As preferred, the motor and the top end of the blow molding rod are fixed by a support, the support includes a connecting plate arranged parallel to the mounting plate, and a guide assembly is arranged between the mounting plate and the connecting plate to drive the blow molding rod to ascend and descend along a predetermined path under the limitation of the guide assembly. The support fixes the motor and the blow molding rod by the connecting plate, ensures that the motor and the blow molding rod are fixed to each other and ascend and descend synchronously, and the guide assembly is used to guide the motor and the blow molding rod to ascend and descend along a predetermined path, thereby ensuring that the blow molding machine can accurately stretch the bottle blank and guarantee the blow molding effect of the bottle body.

[0010] As preferred, the guide assembly includes a vertical guide rail arranged on the mounting plate and a sliding block arranged on the connecting plate. The sliding block slides along the guide rail and guides the blow molding rod to ascend and descend in a vertical posture. The sliding block vertically slides along the guide rail, so that the connecting plate can ascend and descend in a vertical posture, thereby ensuring that the blow molding rod can be inserted into the bottle blank in a vertical posture and complete the stretching and blow molding operation.

[0011] As preferred, the support includes a first frame part, and the blow molding rod is fixed to the connecting plate by the first frame part. The first frame part is fixed to the connecting plate by fasteners and is connected with the blow molding rod by arranging a vertical through mounting hole, so as to ensure that the blow molding rod always maintains a vertical posture.

[0012] As preferred, the support comprises a second support part in a tubular shape, and the side part of the second support part is provided with an opening, two ends of the second support part are fixedly connected to the end face of the motor and the connecting plate respectively, the rotating shaft of the motor is inserted along the axis of the second support part, and the gear is exposed through the opening and engaged with the rack.

[0013] A bottle blowing machine comprises a heating device, a conveying device and a bottle blowing device arranged on a frame, a bottle blank is softened in the heating device, is transferred to the bottle blowing device through the conveying device and is blown into a bottle body.

[0014] The motor and the rack are interchanged, the motor is fixedly connected to the bottle blowing rod, the self-gravity of the motor is used to offset part of the anti-deformation force of the bottle blank, the motor is used to downwardly stretch the bottle blank by using the self-gravity and the generated force of the motor, the requirement on the power of the motor is reduced, a motor with smaller rated power can be used, the structure is simple, the equipment cost is effectively reduced, the energy consumption of the motor when driving the bottle blowing machine to ascend is effectively reduced, the operation cost is reduced, and the use experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic view of the bottle blowing device according to Embodiment 1 is shown in the figure.

[0016] Figure 2 A structural schematic view of the bottle blowing mechanism according to Embodiment 1 is shown in the figure.

[0017] Figure 3 A disassembled structural schematic view of the bottle blowing mechanism according to Embodiment 1 is shown in the figure.

[0018] In the figure, 1 is a frame, 2 is a mold mechanism, 3 is a bottle blowing mechanism, 4 is a bottle blowing rod, 5 is a motor, 6 is a rack, 7 is a gear, 8 is a mounting plate, 9 is a movable slot, 10 is a connecting plate, 11 is a guide rail, 12 is a sliding block, 13 is a first support part, and 14 is a second support part. DETAILED DESCRIPTION

[0019] The essential features of the utility model will be further explained below in combination with the drawings and the specific embodiments.

[0020] Embodiment 1

[0021] The embodiment provides a bottle blowing device.

[0022] As Figure 1The bottle blowing device shown comprises a rack 1, a mold mechanism 2 arranged on the rack 1, and a bottle blowing mechanism 3 arranged on the rack 1. The bottle blowing mechanism 3 comprises a vertically displaceable bottle blowing rod 4 and a driving assembly for driving the bottle blowing rod 4 to ascend and descend. The driving assembly comprises a vertically arranged transmission member arranged on the rack 1 and a motor 5 fixed to the bottle blowing rod 4. The motor 5 drives the bottle blowing rod 4 to descend along the transmission member to a bottle blowing station under the action of gravity. The motor 5 can ascend along the transmission member and drive the bottle blowing rod 4 to ascend to an idle station, effectively reducing the rated load of the motor 5. The motor 5 and the rack 6 are interchanged in position. The motor 5 is fixed to the bottle blowing rod 4. The gravity of the motor 5 is used to offset part of the anti-deformation force of the preform, thereby reducing the power requirement of the motor 5. A motor 5 with smaller rated power can be used, effectively reducing the equipment cost and the energy consumption of the motor 5 when driving the bottle blowing rod to ascend, reducing the operation cost and improving the use experience.

[0023] In the embodiment, the mold assembly comprises a switchable mold plate. The mold plate is folded towards each other to form a mold cavity. In use, the preform is placed in the mold cavity, the bottle blowing rod 4 is vertically inserted into the preform, and the preform is subjected to stretching and bottle blowing operations, so that the preform is blown into a bottle body.

[0024] In the embodiment, the bottle blowing rod 4 can ascend and descend between the bottle blowing station and the idle station. When the bottle blowing rod 4 descends from the idle station to the bottle blowing station (as shown in Figure 2 The weight of the motor 5 and the driving force generated by the motor 5 when powered on jointly act on the bottle blowing rod 4 through mutual cooperation, so that the force acting on the bottle blowing rod 4 when descending meets the stretching requirements of the bottle blowing. When the bottle blowing rod 4 ascends from the bottle blowing station to the idle station, the driving force generated by the motor 5 when powered on only needs to be greater than the weight of the motor 5 and the bottle blowing rod 4, so as to ensure that the bottle blowing rod 4 can be smoothly reset to the idle station. As can be seen, compared with the original structure in which the force required for stretching the preform is generated by the motor 5 when powered on, the anti-deformation performance of the preform is effectively offset by reasonably using the gravity of the motor 5 in the present application, and the bottle blowing rod 4 can be reset under the driving of the motor 5. The rated power requirement of the motor 5 is effectively reduced, thereby reducing the equipment cost and the operation cost and improving the use experience.

[0025] In the embodiment, the transmission member is a rack 6 fixed to the rack 1. A gear 7 (as shown in Figure 3 The gear 7 is engaged with the rack 6 and drives the bottle blowing rod 4 to ascend and descend through the motor 5. The rack 6 is fixed to the rack 1 and remains fixed in the installed position. The motor 5 is engaged with the rack 6 through the gear 7. The rotating gear 7 can move along the rack 6, thereby driving the bottle blowing rod 4 to ascend and descend.

[0026] In the embodiment, the motor 5 is fixedly connected with the top end of the bottle blowing rod 4 through a bracket, the bracket includes a connecting plate 10 which is arranged parallel to the mounting plate 8, the rack 6 is fixedly connected on the mounting plate 8 which is arranged vertically above the mold mechanism 2, and the connecting plate 10 is fixedly connected with the first bracket part 13 at the front wall and the second bracket part 14 at the rear wall. The second bracket part 14 penetrates the movable slot 9, so that the motor 5 and the bottle blowing rod 4 are respectively arranged on the two sides of the mounting plate 8, the space is reasonably utilized, the weight balance of the connecting plate 10 on the two sides is ensured, the deflection of the connecting plate 10 due to the front and rear stress is prevented, and the vertical posture of the bottle blowing rod 4 is ensured.

[0027] In the embodiment, the mounting plate 8 and the connecting plate 10 are provided with a guide assembly, so that the connecting plate 10 drives the bottle blowing rod 4 to ascend and descend along the preset path under the limitation of the guide assembly. The guide assembly includes a vertical guide rail 11 arranged on the mounting plate 8 and a sliding block 12 arranged on the connecting plate 10, the sliding block 12 slides along the guide rail 11 and guides the bottle blowing rod 4 to ascend and descend in the vertical posture. The guide assembly is two groups, the guide rails 11 are respectively arranged on the regions of the mounting plate 8 located on the two sides of the movable slot 9, the anti-deflection performance of the connecting plate 10 is improved by increasing the distance between the guide rails 11, and the vertical posture of the bottle blowing rod 4 is ensured. The connecting plate 10 is provided with two sliding blocks 12 which are respectively connected with the corresponding guide rails 11, and the positioning reliability of the connecting plate 10 is improved by increasing the number of the guide assemblies.

[0028] In the embodiment, the bracket includes the first bracket part 13, and the bottle blowing rod 4 is fixedly connected with the connecting plate 10 through the first bracket part 13. The first bracket part 13 is block-shaped, the first bracket part 13 is fixedly connected with the front wall of the connecting plate 10 by closely combining the side wall, the mounting hole for inserting the bottle blowing rod 4 is arranged on the first bracket part 13, and the vertical posture of the bottle blowing rod 4 is ensured.

[0029] In the embodiment, the bracket includes the second bracket part 14 which is tubular and has an open side, the two ends of the second bracket part 14 are respectively fixedly connected with the end face of the motor 5 and the connecting plate 10, the rotating shaft of the motor 5 is inserted along the axis of the second bracket part 14, the gear 7 is exposed through the open side and is engaged with the rack 6. The connecting plate 10 is movably arranged on the mounting plate 8 through the guide assembly, so that the second bracket part 14 can be suspended in the movable slot 9 and the two do not contact and rub each other. The two ends of the second bracket part 14 are respectively fixedly connected with the end face of the motor 5 and the rear wall of the connecting plate 10 through fasteners, and the relative positions of the motor 5, the connecting plate 10 and the mounting plate 8 in the horizontal plane are fixed.

[0030] Embodiment two:

[0031] Compared with the first embodiment, the present embodiment provides a bottle blowing machine.

[0032] A bottle blowing machine, which is composed of a heating device, a conveying device and a bottle blowing device arranged on a frame 1. The bottle blank is softened in the heating device, then is transferred to the bottle blowing device by the conveying device and is blown into a bottle body.

[0033] It can be understood that the bottle blowing device can also be applied to an injection-blowing integrated machine, an injection-blowing-filling integrated machine and a blow-can integrated machine, all of which should be regarded as specific embodiments of the present embodiment.

[0034] The other structures and effects of the bottle blowing device of the present embodiment are consistent with those of the first embodiment, and will not be described again.

Claims

1. A bottle blowing device comprising a frame (1) and a mold mechanism (2) and a bottle blowing mechanism (3) arranged on the frame (1), the bottle blowing mechanism (3) comprising a vertically displaceable bottle blowing rod (4) and a drive assembly driving the bottle blowing rod (4) to ascend and descend, characterized in that, The driving assembly comprises a vertical transmission member arranged on the frame (1) and a motor (5) fixed to the blow-molding rod (4), the motor (5) drives the blow-molding rod (4) to descend along the transmission member to the blow-molding station under the gravity of the motor (5) itself, so as to reduce the rated load of the motor (5).

2. A bottle blowing apparatus according to claim 1, wherein The motor (5) can ascend along the transmission member and drive the blow-molding rod (4) to ascend to the idle station.

3. A bottle blowing apparatus according to claim 1 or 2, wherein The transmission member is a rack (6) fixed to the frame (1), the motor (5) is provided with a gear (7) on the rotating shaft, the gear (7) is engaged with the rack (6) and drives the blow-molding rod (4) to ascend and descend by the motor (5).

4. A bottle blowing apparatus according to claim 3, wherein The frame (1) is provided with a vertical mounting plate (8) above the mold mechanism (2), and the rack (6) is fixed to the mounting plate (8).

5. A bottle blowing apparatus according to claim 4, wherein The mounting plate (8) is provided with a movable slot (9) vertically arranged and used for ascending and descending of the motor (5), and the rack (6) is arranged on the side edge of the movable slot (9).

6. A bottle blowing apparatus according to claim 3, wherein The motor (5) is fixed to the top end of the blow-molding rod (4) through a support, the support comprises a connecting plate (10) arranged in parallel with the mounting plate (8), and a guide assembly is arranged between the mounting plate (8) and the connecting plate (10) to drive the blow-molding rod (4) to ascend and descend along a preset path under the limitation of the guide assembly.

7. A bottle blowing apparatus according to claim 6, wherein The guide assembly comprises a vertical guide rail (11) arranged on the mounting plate (8) and a sliding block (12) arranged on the connecting plate (10), the sliding block (12) slides along the guide rail (11) and guides the blow-molding rod (4) to ascend and descend in a vertical posture.

8. A bottle blowing apparatus according to claim 6, wherein The support comprises a first frame portion (13), and the blow-molding rod (4) is fixed to the connecting plate (10) through the first frame portion (13).

9. A bottle blowing apparatus according to claim 6, wherein The support comprises a second frame portion (14) in the shape of a tube, and the side portion of the second frame portion (14) is provided with an opening, the two ends of the second frame portion (14) are respectively fixed to the end face of the motor (5) and the connecting plate (10), the rotating shaft of the motor (5) is inserted along the axis of the second frame portion (14) so that the gear (7) is exposed through the opening and engaged with the rack (6).

10. A bottle blowing machine, characterized by The bottle preform is heated and softened in the heating device, then is transferred to the blow-molding device by the conveying device and is blown into a bottle body.

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