CN109049630B - Automatic bottle blowing machine - Google Patents

Abstract

The invention relates to the field of bottle blowing machines, in particular to an automatic bottle blowing machine, which comprises a rack, an installation plane plate, a transmission assembly, an embryo feeding mechanical arm, an embryo pressing assembly, a bottle taking mechanical arm, a lamp box assembly, a mold frame assembly and a crank arm stretching mechanism, wherein the transmission assembly comprises a chain and a plurality of embryo supporting seats distributed on the chain, the inner side of the chain is provided with a driving mechanism for driving the chain to rotate, the embryo supporting seats are connected with the chain and can advance along with the rotation of the chain, the embryo feeding mechanical arm, the lamp box assembly, the mold frame assembly, the crank arm stretching mechanism and the bottle taking mechanical assembly are distributed on the top of the installation plane plate along the counterclockwise direction, and the chain rotates along the counterclockwise direction and sequentially passes through the lamp box assembly and the mold frame assembly, meanwhile, the labor cost is reduced.

Description

An automatic blow molding machine

technical field

The invention relates to the field of bottle blowing machines, in particular to an automatic bottle blowing machine.

Background technique

A bottle blowing machine refers to a machine that blows bottles. The most obvious explanation is a machine that can blow plastic particles (softened into liquids) or preforms into bottles through certain technological means. Process equipment for making plastic pellets into hollow containers. At present, the more common models include hollow extrusion blow molding machines using PP and PE for one molding, injection stretch blow molding machines using PET, PC or PP for two moldings, and The newly developed ones include multi-layer hollow extrusion blow molding and stretch blow molding. At present, most of the blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must be made into preforms, and then blown. Nowadays, environmentally friendly plastics made of PET are commonly used. Blow molding machines: after spraying the liquid plastic, use the wind blown by the machine to blow the plastic body to a certain shape of the mold cavity to make a product. This kind of machine It's called a blow molding machine. It is also a kind of blow molding machine, namely hydraulic blow molding machine. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold while it is hot (or heated to a softened state), and immediately after closing the mold Compressed air is introduced into the parison to make the plastic parison inflate and stick to the inner wall of the mold. After cooling and demoulding, various hollow products are obtained. The current blow molding machine is completely formed by wind, and the molding process of the preform is slow, and the blow molding machine requires manual preheating and manual loading and unloading, which is very inconvenient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic bottle blowing machine for the deficiencies of the prior art.

To solve the above problems, the present invention provides the following technical solutions:

An automatic bottle blowing machine, comprising a frame, a flat mounting plate, a transmission component, an upper girdle manipulator, an embryo pressing assembly, a bottle taking manipulator, a light box assembly, a mold base assembly and a crank arm stretching mechanism, an upper girdle manipulator, and a bottle taking manipulator , Embossing components, light box components and mold base components are all arranged on the top of the installation plane plate, the crank arm stretching mechanism is arranged at the bottom of the installation plane plate, the installation plane plate is a rectangular structure and is arranged on the top of the frame, and the transmission component is arranged On the top of the installation plane plate and including a chain and several preform support seats covered on the chain, the chain is rectangular and horizontally arranged just above the installation plane plate, the inner side of the chain is provided with a driving mechanism for driving the rotation of the chain, the bottle The embryo support seat is connected with the chain and can move forward with the rotation of the chain. Both the upper girdle manipulator and the bottle taking manipulator are arranged on the outside of the chain. The position of the embryo pressing component corresponding to the upper girdle manipulator is arranged on the inner side of the chain. The upper girdle manipulator and the light box The assembly, the mold base assembly, the crank arm stretching mechanism and the bottle taking mechanism assembly are distributed on the top of the mounting plane in a counterclockwise direction, and the chain rotates in a counterclockwise direction and passes through the light box assembly and the mold base assembly in turn.

Preferably, the driving mechanism includes a large driving sprocket and three large driven sprockets, and a sprocket seat is arranged under the large driving sprocket and the three large driven sprockets. The driven large sprockets are all rotatably arranged on the top of the corresponding sprocket base. The sprocket base under the active large sprocket is provided with a first reducer for driving the active large sprocket to rotate, the active large sprocket and three The large driven sprockets are respectively engaged with the four corners on the inner side of the chain. The top of the installation plane plate is provided with a number of support frames for the chain to be erected. The bottom of the chain is erected on the top of all the support frames and the sprocket seat. A guide rail with a rectangular structure is also arranged on the outer side of the bottle, and the end of the preform support seat away from the chain can be slidably erected on the top of the guide rail.

Preferably, the preform support seat includes a preform head shaft, an aluminum seat and a rotation gear, one end of the aluminum seat is fixedly connected with the chain, the other end is built on the top of the guide rail through a roller, and the rotation gear is fixedly sleeved on the preform head. Outside the middle of the shaft, the lower half of the preform head shaft is rotatably inserted into the aluminum seat, the preform head shaft is vertically arranged, the rotation gear is horizontally arranged, and there is a gap between the bottom of the rotation gear and the top of the aluminum seat.

Preferably, the upper girdle manipulator and the bottle taking manipulator have the same structure, including a sliding plate, a lifting cylinder, a rotating cylinder, an upper platen, a translation cylinder and several grabbing mechanisms. The first slide rail is slidably matched, the length direction of the first slide rail is perpendicular to the edge of the installation plane plate, the translation cylinder is horizontally arranged at one end of the first slide rail away from the edge of the installation plane plate, and the output end of the translation cylinder is fixedly connected with the slide plate , the lifting cylinder is vertically arranged at the top center of the slide plate and its output end is fixedly connected with the center of the upper platen directly above, the upper platen is horizontally arranged directly above the slide plate, and the upper platen and the four corners of the slide plate pass through respectively Four vertically arranged linear bearings are connected, the rotating cylinder is fixed horizontally at one end of the upper platen and its output end is connected with a horizontal manipulator shaft, and the end of the manipulator shaft away from the rotating cylinder is connected to the bearing seat at the top end of the upper platen , all the grabbing mechanisms are arranged in a straight line and are arranged on the manipulator shaft at equal intervals. The upper girdle manipulator is also provided with an upper girdle positioning fork for stabilizing the preform head shaft. The upper girdle positioning fork is located between the chain and the manipulator shaft. And the top of the upper girdle positioning fork near the chain end is provided with several semi-circular positioning grooves that fit with the outer wall of the preform head shaft. within the gap.

Preferably, each of the grabbing mechanisms includes a gripper rod, a gripper cylinder and a gripper jaw, the gripper jaw is connected to the output end of the gripper cylinder, the gripper cylinder is fixedly connected to one end of the gripper rod, and the gripper rod is connected to one end of the gripper rod. The other end is fixedly sleeved on the outside of the manipulator shaft. The length direction of all gripper bars is perpendicular to the axis direction of the manipulator shaft. All gripper bars are set in the same direction on the manipulator shaft. Locating block and buffer against which the gripper rod interferes.

Preferably, the preform press assembly includes a preform press beam, a preform press plate, a preform press cylinder and several preform press heads, all preform press heads are located directly above the preform support seat, and the preform press beam passes through two vertical preforms. The straight optical axis is connected with the installation plane plate, the embryo pressing beam is fixedly connected with the tops of the two optical axes, the embryo pressing cylinder is fixedly arranged on the top of the embryo pressing beam, and its output end passes through the embryo pressing beam vertically downward, and the pressing beam is pressed downward. The output shaft of the preform cylinder is fixedly connected with the preform press plate below the preform press beam. The top of the preform press plate is provided with two preform press guide rods that pass through the preform press beam vertically upward, and all the preform press heads are arranged in a linear interval. Set on the bottom of the press plate.

Preferably, the light box assembly includes three infrared heating light boxes arranged directly above the chain, the three infrared heating light boxes are arranged in a U-shape, and the chain passes through the interior of the three infrared heating light boxes in a counterclockwise direction, each The interior of each infrared heating light box is provided with a number of infrared lamps for heating the preform, the back of each infrared heating light box is provided with a fan for heat dissipation, and the inner side of the chain is also provided with two The autorotation support rollers meshed with the autorotation gears, and the two autorotation support rollers are respectively located at the two ends of the three infrared heating lamp boxes of the light box assembly in the arrangement direction.

Preferably, the formwork assembly includes a front formwork, a middle formwork, a rear formwork, a linkage die and an opening and closing mechanism for opening and closing the linked die, and the front formwork, the middle formwork and the plank are all vertically arranged and the three are arranged in a straight line , the linkage mold can be opened and closed between the front template and the middle template, and the displacement of the linkage mold is just above the bottle head axis, the front template is located on the outside of the chain, and the middle and rear templates are located on the inside of the chain. The mechanism is located between the middle template and the rear template. The bottoms of the front template, the middle template and the rear template are all slidingly matched with the second sliding rail arranged on the top of the installation plane plate. The mold base assembly also includes four horizontally arranged mold base guide rods , the four guide rods of the formwork pass through the four corners of the front template, the middle template and the rear template in turn, and the two ends of the opening and closing mechanism are respectively connected with the middle template and the rear template to drive them closer to or away from each other.

Preferably, the opening and closing mechanism includes a second reducer, an opening and closing connecting rod, and two sets of linkage components symmetrically arranged on both sides of the opening and closing connecting rod, and two vertical support columns are arranged on the top of the installation plane plate, The opening and closing connecting rod is arranged at the top middle position of the two supporting columns, the second reducer is fixedly arranged on the top of the two supporting columns, and its output shaft is hinged with the upper end of the opening and closing connecting rod through a clamping crankshaft. A hinge rod is hinged at the lower end, and the two side walls of the hinge rod are slidingly matched with the inner sides of the two support columns. Each set of linkage components includes a first crank arm, a second crank arm, a third crank arm and a fourth crank arm. One end of a crank arm and a second crank arm are hinged with the upper end of the hinge rod, the other ends of the first crank arm and the second crank arm are hinged with the upper half of the middle and rear formwork respectively, the third crank arm and the fourth One end of the crank arm is hinged with the lower end of the hinge rod, the other ends of the third crank arm and the fourth crank arm are hinged with the lower half of the middle formwork and the rear formwork respectively, and the first crank arm and the second crank arm are located in the third Just above the crank arm and the fourth crank arm.

Preferably, the crank arm stretching mechanism includes four sealing cylinders arranged side by side and four tie rods that can pass through the sealing cylinders from bottom to top and extend upwards, and the air outlets of the four sealing cylinders are vertically upward and are respectively aligned with the same. The bottom of the upper embryo bottle head shaft communicates with each other.

Beneficial effects: In the automatic bottle blowing machine of the present invention, the rotation of the first reducer drives the large active sprocket to rotate during operation, so that the large active sprocket and the three driven large sprockets cooperate to drive the chain to rotate counterclockwise, and the aluminum seat One end of the preform is fixed on the chain, so that under the rotation of the chain, all the preform supports also move counterclockwise, and the preform manipulator grabs the preform sent by the external conveyor belt and buckles it upside down on the corresponding preform head The top of the shaft is ready to follow the chain into the light box assembly for preheating treatment. After the grabbing mechanism holds the preform, the lifting cylinder lifts the grabbing mechanism as a whole so that the preform is separated from the external conveyor belt, and the translation cylinder pulls the grabbing mechanism as a whole. Close and approach the chain. At this time, the rotating cylinder works to turn the grabbing mechanism 180 degrees, so that the preforms are inverted on the preform head shaft one by one to complete the feeding operation. After the preform is inverted on the preform head shaft , the preform press cylinder drives the preform press head down until the preform and the preform head shaft are pressed tightly, and the preforms that are inverted and pressed on the preform support seat enter three infrared heating boxes in turn for infrared heating treatment, so that The softening of the preform is convenient for the subsequent blow molding operation. One half of the linkage mold is fixedly connected to the front template, and the other half is fixedly connected to the middle template. The opening and closing mechanism drives the middle template and the rear template to move away from or approach each other, so as to realize the opening and closing of the linkage mold. Close, when the linkage mold is closed, its internal cavity is complete. At this time, the blow molding operation begins. The four sealing cylinders are located directly below the chain. When the softened preform moves to the top with the chain, the chain stops rotating. When the linkage mold is closed and the sealing cylinder starts the blow molding operation, the sealing cylinder blows the softened preform. After the blow molding operation is completed, the linkage mold is opened, and the formed bottle moves with the chain and waits to be taken away by the bottle taking manipulator. The automatic bottle blowing machine of the present invention can automatically perform feeding, pre-processing The heating, blowing and unloading operations effectively improve the production efficiency of blowing and reduce labor costs.

Description of drawings

Fig. 1 shows the three-dimensional structure schematic diagram of the present invention;

Figure 2 shows a schematic three-dimensional structure of the transmission assembly;

Fig. 3 shows the enlarged view of B in Fig. 2;

Figure 4 is a schematic diagram of the three-dimensional structure of the upper embryo manipulator;

Fig. 5 is the enlarged view of A in Fig. 1;

FIG. 6 is a schematic diagram of a partial three-dimensional structure of an infrared heating lamp box;

Figure 7 is a schematic three-dimensional structure diagram of the mold base assembly;

Figure 8 is a schematic diagram of the three-dimensional structure of the linkage mold;

Figure 9 is a schematic exploded view of the three-dimensional structure of the linkage mold;

Figure 10 is a schematic diagram of the three-dimensional structure of the crank arm stretching mechanism;

Explanation of reference numerals: frame 1, installation plane 2, upper girdle manipulator 3, bottle picking manipulator 5, mold base assembly 6, crank arm stretching mechanism 7, chain 8, preform support seat 10, driving large sprocket 11 , the driven large sprocket 12, the sprocket seat 13, the first reducer 14, the support frame 15, the guide rail 16, the preform head shaft 17, the aluminum seat 18, the rotation gear 19, the roller 20, the slide plate 21, the lifting cylinder 22, Rotary cylinder 23, upper platen 24, translation cylinder 25, first slide rail 26, linear bearing 27, manipulator shaft 28, bearing seat 29, upper girdle positioning fork 30, semi-annular positioning groove 31, gripper rod 32, clamping cylinder 33, clamping jaw 34, positioning block 35, buffer 36, embryo pressing beam 37, pressing plate 38, pressing cylinder 39, pressing head 40, optical axis 41, pressing rod 42, infrared heating light box 43, Infrared lamp tube 44, fan 45, rotation support roller 46, front template 47, middle template 48, rear template 49, linkage mold 50, second slide rail 51, mold base guide rod 52, second reducer 53, opening and closing connection Rod 54, support column 55, clamping crankshaft 56, hinge rod 57, first crank arm 58, second crank arm 59, third crank arm 60, fourth crank arm 61, sealing cylinder 62, pull rod 63, third reduction gear Machine 64, linkage plate 65, top plate 66, motor mounting plate 67, strip side plate 68, third slide rail 69, slider 70, stretching crankshaft 71, stretching connecting rod 72, side die 73, pressing plate 74 , Half ring die 75, bottom die 76, cavity 77, fixed die 78, spring 79, wedge-shaped pressing plate 80.

Detailed ways

Below in conjunction with the accompanying drawings and embodiments of the description, the specific embodiments of the present invention are described in further detail:

Referring to an automatic bottle blowing machine shown in FIGS. 1 to 10 , it includes a frame 1, a flat mounting plate 2, a transmission assembly, an upper girdle manipulator 3, an embryo pressing assembly, a bottle taking manipulator 5, a light box assembly, and a mold base assembly 6 And the crank arm stretching mechanism 7, the upper girdle manipulator 3, the bottle taking manipulator 5, the embryo pressing assembly, the light box assembly and the mold base assembly 6 are all arranged on the top of the installation plane plate 2, and the crank arm stretching mechanism 7 is arranged on the installation plane plate. 2, the installation plane plate 2 is a rectangular structure and is arranged on the top of the frame 1, and the transmission assembly is arranged on the top of the installation plane plate 2 and includes a chain 8 and a number of preform support seats 10 covered on the chain 8. The chain 8 is rectangular and horizontally arranged just above the installation plane plate 2, the inner side of the chain 8 is provided with a driving mechanism for driving the rotation of the chain 8, the preform support seat 10 is connected with the chain 8 and can move forward with the rotation of the chain 8, The upper girdle manipulator 3 and the bottle taking manipulator 5 are both arranged on the outside of the chain 8. The position of the embryo pressing component corresponding to the upper girdle manipulator 3 is arranged on the inner side of the chain 8. The upper girdle manipulator 3, the light box assembly, the mold base assembly 6, the crank arm puller The extension mechanism 7 and the bottle-taking mechanism assembly are distributed on the top of the installation plane plate 2 in the counterclockwise direction, and the chain 8 rotates in the counterclockwise direction and passes through the light box assembly and the mold base assembly 6 in sequence.

The driving mechanism includes a large driving sprocket 11 and three large driven sprockets 12 , a sprocket seat 13 is arranged below the driving large sprocket 11 and the three large driven sprockets 12 , and the large driving sprocket 11 and the three driven large sprockets 12 are all rotatably arranged on the top of the corresponding sprocket base 13, and the sprocket base 13 below the driving large sprocket 11 is provided with a first reducer for driving the driving large sprocket 11 to rotate. 14. The driving large sprocket 11 and the three driven large sprockets 12 are respectively engaged with the four corners of the inner side of the chain 8. The top of the installation plane plate 2 is provided with a number of supporting frames 15 for the chain 8 to set up. The bottom of 8 is placed on the top of all support frames 15 and sprocket bases 13, the outer side of the chain 8 is also provided with a guide rail 16 with a rectangular structure, and the end of the preform support base 10 away from the chain 8 can be slidably erected on the guide rail 16. At the top, the rotation of the first reducer 14 drives the large driving sprocket 11 to rotate, so that the large driving sprocket 11 cooperates with the three large driven sprockets 12 to drive the chain 8 to rotate counterclockwise.

The preform support seat 10 includes a preform head shaft 17, an aluminum seat 18 and a rotation gear 19. One end of the aluminum seat 18 is fixedly connected to the chain 8, and the other end is set up on the top of the guide rail 16 through a roller 20, and the rotation gear 19 is fixed. It is sleeved on the outer side of the middle of the preform head shaft 17, the lower half of the preform head shaft 17 is rotatably inserted in the aluminum seat 18, the preform head shaft 17 is vertically arranged, the rotation gear 19 is arranged horizontally, and the rotation gear 19 is arranged horizontally. There is a gap between the bottom and the top of the aluminum seat 18, and one end of the aluminum seat 18 is fixed on the chain 8, so that under the rotation of the chain 8, all the preform support seats 10 also move counterclockwise.

The upper girdle manipulator 3 and the bottle taking manipulator 5 have the same structure, including a sliding plate 21, a lifting cylinder 22, a rotating cylinder 23, an upper platen 24, a translation cylinder 25 and several grabbing mechanisms. The first slide rail 26 on the top of the installation plane plate 2 is slidably fitted, the length direction of the first slide rail 26 is perpendicular to the edge of the installation plane plate 2 , and the translation cylinder 25 is horizontally arranged on the first slide rail 26 away from the edge of the installation plane plate 2 . One end, and the output end of the translation cylinder 25 is fixedly connected with the sliding plate 21, the lifting cylinder 22 is vertically arranged at the top center of the sliding plate 21 and its output end is fixedly connected with the center of the upper platen 24 directly above, and the upper platen 24 is arranged horizontally Just above the sliding plate 21, and the upper platen 24 and the four corners of the sliding plate 21 are respectively connected by four vertically arranged linear bearings 27, the rotary cylinder 23 is horizontally fixed at one end of the upper platen 24 and its output end is connected There is a horizontal manipulator shaft 28, and the end of the manipulator shaft 28 away from the rotating cylinder 23 is connected to the bearing seat 29 at the top end of the upper platen 24. All the grabbing mechanisms are arranged in a straight line and are arranged on the manipulator shaft 28 at equal intervals. The sliding plate 21 of 3 is also provided with an upper girdle positioning fork 30 for stabilizing the preform head shaft 17, the upper girdle positioning fork 30 is located between the chain 8 and the manipulator shaft 28, and the top of the upper girdle positioning fork 30 is set close to one end of the chain 8. There are several semi-annular positioning grooves 31 that fit with the outer wall of the preform head shaft 17. The end of the upper girdle positioning fork 30 with the hemispherical positioning groove can extend into the gap between the rotation gear 19 and the aluminum seat 18. The manipulator grabs the preform sent by the external conveyor belt and buckles it upside down on the top of the corresponding preform head shaft 17, ready to follow the chain 8 into the light box assembly for preheating. After the grabbing mechanism holds the preform, The lifting cylinder 22 lifts the grasping mechanism as a whole so that the preform is separated from the external conveyor belt, and the translation cylinder 25 pulls the grasping mechanism as a whole and moves closer to the chain 8. At this time, the rotating cylinder 23 works to turn the grasping mechanism 180 degrees, so that the bottle The embryos are inverted one by one on the preform head shaft 17 to complete the feeding operation.

Each of the grabbing mechanisms includes a gripping lever 32, a gripping cylinder 33 and a gripping claw 34, the gripping claw 34 is connected to the output end of the gripping cylinder 33, and the gripping cylinder 33 is fixedly connected to one end of the gripping rod 32, The other end of the gripping lever 32 is fixedly sleeved on the outside of the manipulator shaft 28 , the length directions of all gripping bars 32 are perpendicular to the axial direction of the manipulator shaft 28 , and all gripping bars 32 are arranged on the manipulator shaft 28 in the same direction , the top of the upper platen 24 is provided with a number of positioning blocks 35 and buffers 36 for the gripping lever 32 to interfere, and the clamping cylinder 33 works to tighten the clamping jaws 34 to clamp the preform.

The preform press assembly includes a preform press beam 37, a preform press plate 38, a preform press cylinder 39 and a plurality of preform press heads 40. All preform press heads 40 are located directly above the preform support seat 10. The preform press beam 37 The two vertically arranged optical axes 41 are connected to the installation plane plate 2 , the blank pressing beam 37 is fixedly connected to the top of the two optical axes 41 , and the blank pressing cylinder 39 is fixedly arranged on the top of the blank pressing beam 37 and its output end is vertical Straight down through the embryo pressing beam 37, the output shaft of the embryo pressing cylinder 39 is fixedly connected with the embryo pressing plate 38 below the embryo pressing beam 37, and the top of the embryo pressing plate 38 is provided with two vertically upwards passing through the embryo pressing beam 37. The preform press guide rod 42, all preform press heads 40 are arranged at the bottom of the preform press plate 38 in a linear interval. After the preform is buckled on the preform head shaft 17, the preform press cylinder 39 drives the preform press head 40. Descend until the preform is pressed against the preform head shaft 17 .

The light box assembly includes three infrared heating light boxes 43 arranged directly above the chain 8. The three infrared heating light boxes 43 are arranged in a U-shape, and the chain 8 passes through the interior of the three infrared heating light boxes 43 in a counterclockwise direction. , the interior of each infrared heating lamp box 43 is provided with a number of infrared lamps 44 for heating the preform, the back of each infrared heating lamp box 43 is provided with a fan 45 for heat dissipation, and the inner side of the chain 8 is also provided with There are two self-rotating supporting wheels 46 that can mesh with the adjacent self-rotating gears 19. The two self-rotating supporting wheels 46 are respectively located at the two ends of the three infrared heating lamp boxes 43 of the light box assembly in the arrangement direction, and are inverted and pressed on the bottle embryo support. The preforms on the seat 10 enter three infrared heating boxes in turn for infrared heating treatment, so that the preforms are softened for the subsequent blow molding operation.

The mold base assembly 6 includes a front mold plate 47, a middle mold plate 48, a rear mold plate 49, a linkage mold 50, and an opening and closing mechanism for opening and closing the linkage mold 50. The front mold plate 47, the middle mold plate 48 and the plank are vertically arranged and The three are arranged in a straight line, and the linkage mold 50 can be opened and closed between the front template 47 and the middle template 48, and the linkage mold 50 is directly above the displacement embryo bottle head axis, the front template 47 is located outside the chain 8, the middle template 48 and the rear template 49 are located on the inner side of the chain 8, the opening and closing mechanism is located between the middle template 48 and the rear template 49, and the bottoms of the front template 47, the middle template 48 and the rear template 49 are all the same as the No. The two slide rails 51 are slidably matched, and the mold base assembly 6 further includes four horizontally arranged mold base guide rods 52 , and the four mold base guide rods 52 pass through the four corners of the front template 47 , the middle template 48 and the rear template 49 in sequence. The two ends of the opening and closing mechanism are respectively connected with the middle template 48 and the rear template 49 to drive the two to approach or be far away from each other. Half of the linkage mold 50 is fixedly connected with the front template 47, and the other half is fixedly connected with the middle template 48. The mechanism drives the middle die plate 48 and the rear die plate 49 away from or close to each other, thereby realizing the opening and closing of the linkage mold 50. When the linkage mold 50 is closed, its internal cavity 77 is complete, and the blow molding operation is started at this time, and the blow molding operation is completed. After the ice is cooled, the linkage mold 50 is opened, and the formed bottle body moves with the chain 8 and waits to be taken away by the bottle taking robot 5 .

The opening and closing mechanism includes a second reducer 53, an opening and closing connecting rod 54, and two sets of linkage components symmetrically arranged on both sides of the opening and closing connecting rod 54, and two vertical support columns are arranged on the top of the installation plane plate 2. 55, the opening and closing connecting rod 54 is arranged at the top middle position of the two supporting columns 55, the second reducer 53 is fixedly arranged on the top of the two supporting columns 55 and its output shaft passes through a clamping crankshaft 56 and the opening and closing connecting rod 54. The upper end is hinged, the lower end of the clamping crankshaft 56 is hinged with a hinge rod 57, the two side walls of the hinge rod 57 are slidingly matched with the inner sides of the two support columns 55, and each set of linkage components includes a first crank arm 58, a second crank arm The arm 59, the third crank arm 60 and the fourth crank arm 61, one end of the first crank arm 58 and the second crank arm 59 are hinged with the upper end of the hinge rod 57, and the other ends of the first crank arm 58 and the second crank arm 59 are hinged. One end is hinged with the upper half of the middle template 48 and the rear template 49 respectively, one end of the third crank arm 60 and the fourth crank arm 61 are both hinged with the lower end of the hinge rod 57, The other end is hinged with the lower half of the middle template 48 and the rear template 49 respectively, the first crank arm 58 and the second crank arm 59 are located just above the third crank arm 60 and the fourth crank arm 61 respectively, the second reducer 53 The rotation drives the clamping crankshaft 56 to rotate, and the clamping crankshaft 56 rotates to drive the opening and closing connecting rod 54 to move up and down. When the opening and closing connecting rod 54 moves upward, it drives the hinge rod 57 to rise as a whole, so that the middle plate 48 and the rear The templates 49 are close to each other to open the linkage mold 50 . When the opening and closing link 54 moves downward, the linkage mold 50 is closed.

The crank arm stretching mechanism 7 includes four sealing cylinders 62 arranged side by side and four tie rods 63 that can pass through the sealing cylinders 62 from bottom to top and extend upwards. The air outlets of the four sealing cylinders 62 are vertically upward and respectively. Connecting with the bottom of the bottle head shaft just above it, the sealing cylinder 62 blows and molds the softened bottle preform. During this process, the tie rod 63 also moves upward to support the bottle preform, thereby speeding up the blow molding of the sealing cylinder 62. speed.

The crank arm stretching mechanism 7 also includes an installation frame and a third reducer 64 for driving the pull rod 63 to move up and down. The four sealing cylinders 62 are fixedly arranged on the top of the installation frame. The bottom of the linkage plate 65, the bottoms of the four pull rods 63 are fixedly connected with the top of the linkage plate 65, the third reducer 64 is located at the bottom of the mounting frame and its output shaft is connected to the bottom of the linkage plate 65 through the third reducer 64 The rotation drives the pull rod 63 to move up and down.

The mounting frame includes a top plate 66 , a motor mounting plate 67 and two strip-shaped side plates 68 . The two strip-shaped side plates 68 are arranged vertically and are parallel to each other. On the top, the bottom ends of the top plate 66 are respectively fixedly connected with the tops of the two strip-shaped side plates 68, the motor mounting plate 67 is vertically arranged on the bottom of the two strip-shaped side plates 68, and the top two The ends are fixedly connected to the bottom of the two strip-shaped side panels 68 .

The four sealing cylinders 62 are arranged in a straight line on the top of the top plate 66, and the arrangement direction is consistent with the length direction of the top plate 66. The four sealing cylinders 62 are arranged in a vertical state, and the four sealing cylinders are located directly below the chain 8. , when the softened preform moves to the top with the chain 8, the chain 8 stops rotating, at this time the linkage mold 50 is closed and the sealing cylinder 62 starts the blow molding operation.

The inner sides of the two strip-shaped side plates 68 are provided with third sliding rails 69, the two third sliding rails 69 are vertically arranged, and the linkage plate 65 is horizontally arranged between the two strip-shaped side plates 68, and Both ends of the linkage plate 65 are slidably matched with the corresponding third slide rail 69 through a slider 70, and the tops of the four tie rods 63 pass through the top plate 66 and the four sealing cylinders 62 one by one from bottom to top in order to ensure that Therefore, the linkage plate 65 can only go straight up and down, so as to drive the four tie rods 63 to go straight up and down.

The third reducer 64 is fixedly arranged on one side of the motor mounting plate 67, and the other side of the motor mounting plate 67 is provided with a tensile crankshaft 71 and a tensile connecting rod 72, and the output end of the third reducer 64 passes through. The motor mounting plate 67 is fixedly connected with one end of the stretching crankshaft 71, the other end of the stretching crankshaft 71 is hinged with the lower end of the stretching connecting rod 72, the upper end of the stretching connecting rod 72 is hinged with the bottom of the linkage plate 65, and the stretching connection is hinged. The length of the rod 72 is greater than the length of the stretching crankshaft 71. The rotation of the third reducer 64 drives the stretching crankshaft 71 to rotate, and the stretching crankshaft 71 rotates so as to link the stretching connecting rod 72, thereby driving the linkage plate 65 to move up and down.

The above crank arm stretching mechanism 7 has the following characteristics: 1. The structure is simplified, the assembly difficulty is reduced, the assembly is fast, the efficiency is high, and the error is reduced; Half a circle completes one stroke of stretching; 3. Good stability, using the structure of the slide rail, good rigidity and guidance; 4. Using a reducer, the torque increases, the stretching force increases, and processing can be increased The range of bottle thickness expands the application range of the equipment, with high stretching efficiency and high speed, reducing the power of the servo motor and saving energy; 5. The servo motor is used to convert the circular motion of the stretching crankshaft 71 into a stretching rod 6. The installation frame is made of cast iron, and the frame of the whole machine is made of ductile iron, which is solid and durable. .

The linkage mold 50 includes two side molds 73, two pressure plates 74, two half-ring molds 75 and a bottom mold 76. The sides of the two side molds 73 that are close to each other are provided with half a bottle body. The cavity 77, and the number of the cavity 77 is four, the two pressing plates 74 are respectively arranged on the outer sides of the two side molds 73, and the bottom mold 76 is located between the two pressing plates 74 and pressurized with one of them The plate 74 is fixedly connected, one side of the bottom mold 76 is attached to the same end of the two side molds 73, and the bottom mold 76 is elastically connected with the adjacent side mold 73. One of the pressing plates 74 is fixedly connected with a The outer side of the bottom mold 76 is attached to and interferes with the wedge-shaped pressing plate 80, the two semi-circular ring molds 75 are fixedly arranged at one end of the side mold 73 away from the bottom mold 76, and the semi-circular ring mold 75 is located at the bottle mouth of the cavity 77, When the two side molds 73 and one bottom are closed together, the formed cavity is the shape of the preform after blowing.

The two pressure plates 74 are arranged parallel to each other, the width of the bottom mold 76 is equal to the distance between the two pressure plates 74, and the side of the bottom mold 76 close to the side mold 73 is provided with four plastic bottles for forming the bottom of the bottle. The fixed mold 78 is fixedly mounted on the bottom mold 76 to shape the bottom of the bottle during the bottle blowing process.

The side of the bottom mold 76 provided with the fixed mold 78 is attached to the two side molds 73, and a number of springs 79 are arranged between the bottom mold 76 and one of the side molds 73, and two ends of each spring 79 are respectively It interferes with the bottom mold 76 and the side mold 73 .

The length of the pressing plate 74 is greater than the length of the side mold 73 , and the width of the pressing plate 74 is greater than the width of the side mold 73 .

The length of the bottom mold 76 is equal to the length of the side molds 73 , and the width of the bottom mold 76 is equal to the sum of the thicknesses of the two side molds 73 .

Working principle: When working, the first reducer 14 rotates to drive the large active sprocket 11 to rotate, so that the large active sprocket 11 cooperates with the three driven large sprockets 12 to drive the chain 8 to rotate counterclockwise, and one end of the aluminum seat 18 is fixed on the On the chain 8, under the rotation of the chain 8, all the preform supports 10 also move counterclockwise, and the preform manipulator grabs the preform sent by the external conveyor belt and buckles it upside down on the corresponding preform head shaft. The top of 17 is ready to follow the chain 8 into the light box assembly for preheating. After the preform is clamped by the grabbing mechanism, the lifting cylinder 22 lifts the grabbing mechanism as a whole so that the preform is separated from the external conveyor belt, and the translation cylinder 25 will grab the preform. The mechanism is pulled closer and closer to the chain 8. At this time, the rotating cylinder 23 works to turn the grabbing mechanism 180 degrees, so that the preforms are inverted on the preform head shaft 17 one by one to complete the feeding operation. After the preform head shaft 17 is mounted, the preform press cylinder 39 drives the preform press head 40 to descend until the preform and the preform head shaft 17 are pressed tightly, and the preforms that are inverted and pressed on the preform support seat 10 enter in turn. The three infrared heating boxes are subjected to infrared heating treatment to soften the preform and facilitate the subsequent blow molding operation. Half of the linkage mold 50 is fixedly connected to the front template 47, and the other half is fixedly connected to the middle template 48, and the middle template 48 is driven by the opening and closing mechanism. and the back template 49 are far away from or close to each other, thereby realizing the opening and closing of the linkage mold 50. When the linkage mold 50 is closed, its internal cavity 77 is complete, and the blow molding operation starts at this time, and the four sealing cylinders are located directly below the chain 8. , when the softened preform moves to the top with the chain 8, the chain 8 stops rotating. At this time, the linkage mold 50 is closed and the sealing cylinder 62 starts the blow molding operation, and the sealing cylinder 62 blows the softened preform. , During this process, the tie rod 63 also moves upward to hold up the preform, thereby speeding up the blow molding speed of the sealing cylinder 62. After the blow molding operation is completed, the linkage mold 50 is opened, and the formed bottle body follows the cooling process. The chain 8 moves and waits to be picked up by the bottle picker 5 .

The above are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still It belongs to the scope of the technical solution of the present invention.

Claims (1)

1. An automatic bottle blowing machine, characterized in that: it comprises a frame (1), a flat mounting plate (2), a transmission assembly, an upper girdle manipulator (3), an embryo pressing assembly, a bottle taking manipulator (5), a light box assembly , the mold base assembly (6) and the crank arm stretching mechanism (7), the upper girdle manipulator (3), the bottle taking manipulator (5), the blank pressing assembly, the light box assembly and the mold base assembly (6) are all arranged on the installation plane plate On the top of (2), the crank arm stretching mechanism (7) is arranged at the bottom of the installation plane plate (2), the installation plane plate (2) is a rectangular structure and is arranged on the top of the frame (1), and the transmission assembly is arranged on the installation plane (2). The top of the flat plate (2) includes a chain (8) and several preform support seats (9) covered on the chain (8). Above, the inner side of the chain (8) is provided with a driving mechanism for driving the rotation of the chain (8). The preform support seat (9) is connected with the chain (8) and can move forward with the rotation of the chain (8). (3) and the bottle taking manipulator (5) are both arranged on the outside of the chain (8), the position of the embryo pressing component corresponding to the upper girdle manipulator (3) is arranged on the inner side of the chain (8), the upper girdle manipulator (3), the light box assembly , the mold base assembly (6), the crank arm stretching mechanism (7) and the bottle-taking mechanical assembly are distributed on the top of the installation plane plate (2) in the counterclockwise direction, and the chain (8) rotates in the counterclockwise direction and passes through the light box in turn assembly and mold base assembly (6); the drive mechanism includes a large driving sprocket (11) and three large driven sprockets (12), a large driving sprocket (11) and three large driven sprockets ( A sprocket seat (13) is arranged below the 12), and the driving large chain wheel (11) and the three driven large chain wheels (12) are rotatably arranged on the top of the corresponding chain wheel seat (13). The sprocket seat (13) below the sprocket (11) is provided with a first reducer (14) for driving the driving large chain wheel (11) to rotate, the driving large chain wheel (11) and three driven large chain wheels (12) are respectively engaged with the four corners on the inner side of the chain (8), the top of the installation plane plate (2) is provided with a number of support frames (15) for the chain (8) to be erected, and the bottom of the chain (8) It is erected on the top of all the support frames (15) and the sprocket seat (13), the outer side of the chain (8) is also provided with a guide rail (16) with a rectangular structure, the preform support seat (9) is far from the chain (8) One end is slidably mounted on the top of the guide rail (16); the preform support seat (9) includes a preform head shaft (17), an aluminum seat (18) and a rotation gear (19), one end of the aluminum seat (18) It is fixedly connected with the chain (8), the other end is set on the top of the guide rail (16) through a roller (20), and the rotation gear (19) is fixedly sleeved on the outer side of the middle of the preform head shaft (17), and the preform head shaft ( The lower half of 17) is rotatably inserted into the aluminum seat (18), the preform head shaft (17) is arranged vertically, the rotation gear (19) is arranged horizontally, and the bottom of the rotation gear (19) is connected to the aluminum seat (18) with a gap at the top; the The upper girdle manipulator (3) and the bottle-taking manipulator (5) have the same structure, including a sliding plate (21), a lifting cylinder (22), a rotating cylinder (23), an upper platen (24), a translation cylinder (25) and several Grab mechanism, the bottom of the sliding plate (21) is slidably matched with the first slide rail (26) horizontally arranged on the top of the installation plane plate (2), and the length direction of the first slide rail (26) is perpendicular to the installation plane plate (2) The edge of the translation cylinder (25) is horizontally arranged at one end of the first slide rail (26) away from the edge of the installation plane plate (2), and the output end of the translation cylinder (25) is fixedly connected with the slide plate (21), and the lifting cylinder ( 22) be vertically arranged at the top center of the slide plate (21) and its output end is fixedly connected to the center of the upper platen (24) directly above, and the upper platen (24) is horizontally arranged directly above the slide plate (21), and The upper platen (24) is connected with the four corners of the slide plate (21) through four vertically arranged linear bearings (27) respectively, and the rotary cylinder (23) is horizontally and fixedly arranged at one end of the upper platen (24) and its output The end is connected with a horizontal manipulator shaft (28), the end of the manipulator shaft (28) away from the rotating cylinder (23) is connected with a bearing seat (29) at the top end of the upper platen (24), and all the gripping mechanisms are arranged in a straight line and The upper girdle positioning fork (30) for stabilizing the preform head shaft (17) is also provided on the sliding plate (21) of the upper girdle manipulator (3) at equal intervals. ) is located between the chain (8) and the manipulator shaft (28), and the top of the upper girdle positioning fork (30) near the end of the chain (8) is provided with a number of semi-circular positioning that fits with the outer wall of the preform head shaft (17). A groove (31), the end of the upper girdle positioning fork (30) with the hemispherical positioning groove can extend into the gap between the rotation gear (19) and the aluminum seat (18); each of the grabbing mechanisms includes a clamp The hand rod (32), the clamping cylinder (33) and the clamping claw (34), the clamping claw (34) is connected with the output end of the clamping cylinder (33), and the clamping cylinder (33) is connected to the clamping rod (32). One end is fixedly connected, the other end of the gripper rod (32) is fixedly sleeved on the outside of the manipulator shaft (28), the length direction of all gripper rods (32) is perpendicular to the axis direction of the manipulator shaft (28), The hand levers (32) are all arranged in the same direction on the manipulator shaft (28), and a plurality of positioning blocks (35) and buffers (36) are arranged on the top of the upper platen (24) for the gripper lever (32) to interfere; The preform press assembly includes a preform press beam (37), a preform press plate (38), a preform press cylinder (39) and a plurality of preform press heads (40), all of which are located on the preform support seat Right above (9), the blank-pressing beam (37) is connected to the mounting plane plate (2) through two vertically arranged optical axes (41), and the blank-pressing beam (37) is connected to the top of the two optical axes (41). Fixed connection, the blank pressing cylinder (39) is fixedly arranged on the top of the blank pressing beam (37) and its output end passes vertically downwards The embryo pressing beam (37), the output shaft of the embryo pressing cylinder (39) is fixedly connected with the embryo pressing plate (38) below the embryo pressing beam (37), and the top of the embryo pressing plate (38) is provided with two vertical upward piercing plates. The blank pressing guide rods (42) of the over-pressing blank beam (37), all the blank pressing heads (40) are arranged at the bottom of the blank pressing plate (38) in a linear interval; The infrared heating lamp box (43) directly above the chain (8), the three infrared heating lamp boxes (43) are arranged in a U-shape, and the chain (8) passes through the interior of the three infrared heating lamp boxes (43) in a counterclockwise direction. , the interior of each infrared heating lamp box (43) is provided with a number of infrared lamps (44) for heating the preform, and the back of each infrared heating lamp box (43) is provided with a fan (45) for heat dissipation ), the inner side of the chain (8) is also provided with two autorotation supporting wheels (46) that can mesh with the adjacent autorotating gears (19), and the two autorotating supporting wheels (46) are respectively located in the three infrared heating lamp boxes ( 43) Both ends in the arrangement direction; the mold base assembly (6) includes a front template (47), a middle template (48), a rear template (49), a linkage mold (50) and a linkage mold (50) for opening and closing ) opening and closing mechanism, the front template (47), the middle template (48) and the rear template (49) are all vertically arranged and the three are arranged in a straight line, and the linkage mold (50) can be opened and closed and is arranged on the front template (47) and the middle template (48), and the linkage mold (50) is located just above the preform head shaft (17), the front template (47) is located on the outside of the chain (8), the middle template (48) and the rear template (49) ) are located on the inner side of the chain (8), the opening and closing mechanism is located between the middle template (48) and the rear template (49), the bottom of the front template (47), the middle template (48) and the rear template (49) are all set with The second slide rail (51) on the top of the installation plane plate (2) is slidably fitted, and the mold base assembly (6) further includes four horizontally arranged mold base guide rods (52), and the four mold base guide rods (52) are arranged in sequence. Passing through the four corners of the front template (47), the middle template (48) and the rear template (49), the two ends of the opening and closing mechanism are respectively connected with the middle template (48) and the rear template (49) for driving the two are close to or away from each other; the opening and closing mechanism includes a second reducer (53), an opening and closing connecting rod (54), and two sets of linkage components symmetrically arranged on both sides of the opening and closing connecting rod (54), and a flat plate (54) is installed. 2) Two vertical support columns (55) are arranged at the top, the opening and closing link (54) is arranged in the middle position of the top of the two support columns (55), and the second reducer (53) is fixedly arranged at the top of the two support columns (55). The top of the support column (55) and its output shaft are hinged with the upper end of the opening and closing connecting rod (54) through a mold clamping crankshaft (56), and a hinge rod (57) is hinged to the lower end of the mold clamping crankshaft (56). The two side walls of (57) are in sliding fit with the inner sides of the two support columns (55), and each set of linkage components includes a first crank arm (58), a second crank arm (59), and a third crank arm (6). 0) and the fourth crank arm (61), one end of the first crank arm (58) and the second crank arm (59) are hinged with the upper end of the hinge rod (57), the first crank arm (58) and the second crank arm (58) The other end of the arm (59) is hinged with the upper half of the middle template (48) and the rear template (49) respectively, and one ends of the third crank arm (60) and the fourth crank arm (61) are both connected with the hinge rod (57) The lower ends of the third crank arm (60) and the fourth crank arm (61) are hinged with the lower half of the middle template (48) and the rear template (49) respectively. The two crank arms (59) are located just above the third crank arm (60) and the fourth crank arm (61) respectively; the crank arm stretching mechanism (7) includes four sealing cylinders (62) and Four tie rods (63) can pass through the sealing cylinder (62) from bottom to top and extend upward, and the air outlets of the four sealing cylinders (62) are vertically upward and communicate with the bottom of the head shaft of the preform directly above them respectively.

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