Stretching device of bottle blowing machine

Abstract

The utility model discloses a stretching device of a bottle blowing machine, which comprises a longitudinally arranged main mounting plate, a slide rail extending up and down is mounted on the front side of the main mounting plate, the slide rail is connected with a slide block in a sliding manner, a slide block connecting plate is mounted on the front side of the slide block, a pull rod fixing plate is mounted on the front side of the slide block connecting plate, and a pull rod is mounted on the pull rod fixing plate. A plurality of pull rods are installed on the pull rod fixing plate, a plurality of air outlet holes are evenly distributed in the bottoms of the pull rods, an air distribution block communicated with the pull rods is installed at the bottom of the pull rod fixing plate, a longitudinal rack is installed on the rear side of the pull rod fixing plate, and a motor is installed on the rear side of the main installation plate. A motor shaft of the motor is connected with a gear meshed with the rack, and a roller bearing abutting against the rack is installed on the front side of the main installation plate. The lifting device is simple in structure, the motor drives the rack to lift the pull rod, lifting is more stable, installation is more convenient, and use and later maintenance of the bottle blowing machine are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle blowing machines, in particular to a stretching device for bottle blowing machines. Background Art

[0002] The bottle blowing machine is a two-step fully automatic stretching and blowing equipment, that is, a machine that can blow plastic particles (softened into liquid) or finished bottle embryos into bottles through certain process means. The stretching device of the bottle blowing machine is an important part of the bottle blowing machine. The existing stretching device of the bottle blowing machine generally drives the lifting and lowering of the pull rod by a servo motor driving a screw rod or a cylinder driving the lifting and lowering of the pull rod. However, the structure of these stretching devices of the bottle blowing machine is relatively complex, and the installation is inconvenient, which is not conducive to the use and subsequent maintenance of the bottle blowing machine. Therefore, in order to avoid the shortcomings of the prior art, it is necessary to improve the prior art. Utility Model Content

[0003] The utility model aims to overcome the shortcomings and deficiencies in the prior art and provide a stretching device for a bottle blowing machine which has a simple structure and is easy to use.

[0004] The utility model is realized by the following technical solutions:

[0005] A stretching device for a bottle blowing machine comprises a main mounting plate arranged longitudinally, a slide rail extending up and down is installed on the front side of the main mounting plate, a slider is slidably connected to the slide rail, a slider connecting plate is installed on the front side of the slider, a pull rod fixing plate is installed on the front side of the slider connecting plate, a plurality of pull rods are installed on the pull rod fixing plate, a gas distribution block connected to the pull rods is installed on the bottom of the pull rod fixing plate, a longitudinal rack is installed on the rear side of the pull rod fixing plate, a motor is installed on the rear side of the main mounting plate, a gear meshing with the rack is connected to the motor shaft of the motor, and a roller bearing against the rack is installed on the front side of the main mounting plate.

[0006] Furthermore, the gas distribution block is connected to a high-pressure gas pipe.

[0007] Furthermore, bearings are respectively installed on the top of the main mounting plate to support the front and rear sides of the rack, and bearing seats for installing the bearings are provided on the front and rear sides of the top of the main mounting plate. The bearings are installed on the bearing seats by first plug screws.

[0008] Furthermore, the bottom of the rack is connected to the slider connecting plate via a second driving screw, and a shaft sleeve is sleeved on the outer side of the second driving screw.

[0009] Furthermore, the gas distribution block is equipped with a pull rod sleeve for the pull rod to be sleeved, the top of the pull rod is connected to a fixing screw installed on the pull rod fixing plate, and the gas distribution block and the top of the pull rod are both provided with corresponding air holes.

[0010] Furthermore, a first sealing ring and a second sealing ring are respectively sleeved on the outer side of the lower part of the pull rod sleeve, and a third sealing ring is sleeved on the outer side of the upper part of the pull rod.

[0011] Furthermore, a plurality of air outlet holes are evenly distributed on the bottom of the pull rod.

[0012] Furthermore, a locking sleeve connected to the motor shaft of the motor is provided on the inner side of the gear.

[0013] Furthermore, an upper buffer seat is provided at the upper part of the front side of the main mounting plate, an upper buffer rubber is installed at the bottom of the upper buffer seat, and a lower buffer seat is provided at the lower part of the front side of the main mounting plate, and a lower buffer rubber is installed at the bottom of the lower buffer seat.

[0014] Furthermore, side mounting plates are provided on both left and right sides of the main mounting plate, and the bottom of the side mounting plate is connected to a bottom mounting plate.

[0015] Compared with the prior art, the utility model has a plurality of pull rods installed through a pull rod fixing plate, a gas distribution block connected to the pull rod is installed at the bottom of the pull rod fixing plate, a longitudinal rack is installed on the rear side of the pull rod fixing plate, a motor is installed on the rear side of the main mounting plate, a motor shaft of the motor is connected to a gear meshing with the rack, and a roller bearing against the rack is installed on the front side of the main mounting plate, so that the structure of the stretching device of the bottle blowing machine is simple, the rack is driven by the motor to realize the lifting and lowering of the pull rod, the installation is convenient, and it is beneficial to the use and later maintenance of the bottle blowing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front view of the stretching device of the bottle blowing machine of the utility model;

[0018] Figure 2 This is a left view of the stretching device of the bottle blowing machine of the utility model;

[0019] Figure 3 It is a top view of the stretching device of the bottle blowing machine of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rack connection of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the pull rod connection of the utility model.

[0022] In the figure: 1-main mounting plate; 2-slide rail; 3-slider; 4-slider connecting plate; 5-pull rod fixing plate; 6-pull rod; 7-gas distribution block; 8-rack; 9-motor; 10-gear; 11-roller bearing; 12-high-pressure air pipe; 13-bearing; 14-bearing seat; 15-first plug screw; 16-second plug screw; 17-sleeve; 18-pull rod sleeve; 19-fixing screw; 20-air hole; 21-first sealing ring; 22-second sealing ring; 23-third sealing ring; 24-air outlet; 25-expansion sleeve; 26-upper buffer seat; 27-upper buffer rubber; 28-lower buffer seat; 29-lower buffer rubber; 30-side mounting plate; 31-bottom mounting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 The utility model is shown as a stretching device for a bottle blowing machine, comprising a main mounting plate 1 arranged longitudinally, a slide rail 2 extending up and down is installed on the front side of the main mounting plate 1, a slider 3 is slidably connected to the slide rail 2, a slider connecting plate 4 is installed on the front side of the slider 3, a pull rod fixing plate 5 is installed on the front side of the slider connecting plate 4, a plurality of pull rods 6 are installed on the pull rod fixing plate 5, a gas distribution block 7 connected with the pull rod 6 is installed on the bottom of the pull rod fixing plate 5, a longitudinal rack 8 is installed on the rear side of the pull rod fixing plate 5, a motor 9 is installed on the rear side of the main mounting plate 1, a gear 10 meshing with the rack 8 is connected to the motor shaft of the motor 9, and a roller bearing 11 against the rack 8 is installed on the front side of the main mounting plate 1. A plurality of pull rods 6 are installed through the pull rod fixing plate 5, a gas distribution block 7 connected with the pull rod 6 is installed at the bottom of the pull rod fixing plate 5, a longitudinal rack 8 is installed on the rear side of the pull rod fixing plate 5, a motor 9 is installed on the rear side of the main mounting plate 1, a motor shaft of the motor 9 is connected with a gear 10 meshing with the rack 8, and a roller bearing 11 against the rack 10 is installed on the front side of the main mounting plate 2, so that the structure of the stretching device of the bottle blowing machine is simple, the rack 8 is driven by the motor 9 to realize the lifting and lowering of the pull rod 6, the installation is convenient, and it is beneficial to the use and later maintenance of the bottle blowing machine.

[0025] The gas distribution block 7 is connected to a high-pressure gas pipe 12, which makes the gas supply to the stretching device of the bottle blowing machine more convenient and more stable.

[0026] The top of the main mounting plate 1 is respectively provided with bearings 13 against the front and rear sides of the rack 8. The front and rear sides of the top of the main mounting plate 1 are both provided with bearing seats 14 for installing the bearings 13. The bearings 13 are installed on the bearing seats 14 through first plug screws 15, so that the up and down movement of the rack 8 is more stable and the lifting and lowering of the pull rod 6 is more stable.

[0027] The bottom of the rack 8 is connected to the slider connecting plate 4 through a second driving screw 16. A shaft sleeve 17 is sleeved on the outer side of the second driving screw 16 to make the connection of the rack 8 more precise and stable.

[0028] The air distribution block 7 is equipped with a tie rod sleeve 18 for the tie rod 6 to be mounted on. The top of the tie rod 6 is connected to a fixing screw 19 installed on the tie rod fixing plate 5. The air distribution block 7 and the top of the tie rod 6 are both provided with corresponding air holes 20, which makes the installation of the tie rod 6 more stable and the air intake connection more convenient.

[0029] The outer side of the lower part of the pull rod sleeve 18 is respectively sleeved with a first sealing ring 21 and a second sealing ring 22 , and the outer side of the upper part of the pull rod 6 is sleeved with a third sealing ring 23 , so as to improve the airtightness of the installation of the pull rod 6 .

[0030] A plurality of air outlet holes 24 are evenly distributed at the bottom of the pull rod 6 to facilitate blowing of the preform.

[0031] The inner side of the gear 10 is provided with a tightening sleeve 25 connected to the motor shaft of the motor 9, so that the connection between the gear 10 and the motor 9 is more stable, and the transmission is more stable and accurate.

[0032] An upper buffer seat 26 is provided at the upper part of the front side of the main mounting plate 1, and an upper buffer rubber 27 is installed at the bottom of the upper buffer seat 26. A lower buffer seat 28 is provided at the lower part of the front side of the main mounting plate 1, and a lower buffer rubber 29 is installed at the bottom of the lower buffer seat 28 to buffer and limit the up and down movement position of the pull rod 6 to improve safety in use.

[0033] Side mounting plates 30 are provided on both the left and right sides of the main mounting plate 1 , and the bottom of the side mounting plates 30 is connected to a bottom mounting plate 31 , so that the installation of the stretching device of the bottle blowing machine is easier and more stable.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stretching device for a bottle blowing machine, characterized in that: It includes a main mounting plate arranged longitudinally, a slide rail extending up and down is installed on the front side of the main mounting plate, the slide rail is slidably connected with a slider, a slider connecting plate is installed on the front side of the slider, a pull rod fixing plate is installed on the front side of the slider connecting plate, a plurality of pull rods are installed on the pull rod fixing plate, a gas distribution block connected with the pull rods is installed on the bottom of the pull rod fixing plate, a longitudinal rack is installed on the rear side of the pull rod fixing plate, a motor is installed on the rear side of the main mounting plate, a gear meshing with the rack is connected to the motor shaft of the motor, and a roller bearing against the rack is installed on the front side of the main mounting plate.

2. The stretching device for a bottle blowing machine according to claim 1, characterized in that: The gas distribution block is connected with a high-pressure gas pipe.

3. The stretching device for a bottle blowing machine according to claim 1, characterized in that: The top of the main mounting plate is respectively provided with bearings against the front and rear sides of the rack, and the front and rear sides of the top of the main mounting plate are both provided with bearing seats for installing the bearings, and the bearings are installed on the bearing seats by first plug screws.

4. The stretching device for a bottle blowing machine according to claim 1, characterized in that: The bottom of the rack is connected to the slider connecting plate through a second driving screw, and a shaft sleeve is sleeved on the outer side of the second driving screw.

5. The stretching device for a bottle blowing machine according to claim 1, characterized in that: The gas distribution block is equipped with a pull rod sleeve for the pull rod to be sleeved, the top of the pull rod is connected with a fixing screw installed on the pull rod fixing plate, and the gas distribution block and the top of the pull rod are both provided with corresponding air holes.

6. The stretching device for a bottle blowing machine according to claim 5, characterized in that: The outer side of the lower part of the pull rod sleeve is respectively sleeved with a first sealing ring and a second sealing ring, and the outer side of the upper part of the pull rod is sleeved with a third sealing ring.

7. The stretching device for a bottle blowing machine according to claim 1, characterized in that: A plurality of air outlet holes are evenly distributed on the bottom of the pull rod.

8. The stretching device for a bottle blowing machine according to claim 1, characterized in that: A expansion sleeve connected to the motor shaft of the motor is provided on the inner side of the gear.

9. The stretching device for a bottle blowing machine according to claim 1, characterized in that: An upper buffer seat is provided at the upper part of the front side of the main installation plate, and an upper buffer rubber is installed at the bottom of the upper buffer seat. A lower buffer seat is provided at the lower part of the front side of the main installation plate, and a lower buffer rubber is installed at the bottom of the lower buffer seat.

10. The stretching device for bottle blowing machine according to claim 1, characterized in that: Side mounting plates are arranged on both the left and right sides of the main mounting plate, and the bottom of the side mounting plate is connected to a bottom mounting plate.

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