Injection molding and bottle blowing all-in-one machine

Abstract

The utility model provides an injection molding and bottle blowing all-in-one machine which comprises a rack, a raw material melting device and a screw feeding device are arranged on the front portion of the rack, a bottom plate is connected to the rear portion of the rack, stand columns are connected to four corners of the bottom plate respectively, an upper mold plate is fixedly connected to the tops of the four stand columns, and a rotary table mold plate is slidably connected to the four stand columns below the upper mold plate. A turntable is arranged in the center of the turntable template, a turntable driving mechanism is connected to the top of the turntable, mold sliding blocks are arranged at the front position, the rear position, the left position and the right position of the bottom of the turntable respectively, a series of threaded heads are arranged on the mold sliding blocks, and an injection molding device is arranged between the two stand columns on the front side. A heating device is arranged between the two stand columns on the right side, a bottle blowing device is arranged between the two stand columns on the rear side, and a bottle removing device and a conveying belt are arranged between the two stand columns on the left side. The production efficiency is high, and the product quality is good.

Description

Technical Field

[0001] The invention relates to the field of bottle blowing machines, in particular to an all-in-one injection molding and bottle blowing machine. Background Art

[0002] Plastic bottles are widely used in daily life and are applied in all walks of life. Plastic bottles are produced by blowing through a blow molding machine. The current blow molding machine has a basic structure and mature technology. It mainly includes a preform feeding device, a conveyor chain device, a preform heating device, a blow molding device and a discharge device. Usually, the preforms molded by the injection molding machine are collected and transported to the blow molding machine. The preforms are placed in the conveyor chain device one by one through the feeding device by hand or by a robot. The bottles are produced in turn through the preform heating device and the blow molding device. The bottles are then removed through the discharge device. This method is commonly known as a two-step blow molding machine in the industry. This method has multiple defects: 1. The surface of the preforms produced by the injection molding machine is very easy to be scratched when they are collected and transported in boxes. For many products with high requirements on bottle surface quality, such as cosmetic bottles, the surface quality of the blow-molded bottles will be unqualified and become waste; 2. It takes a long time to fill a whole box with injection-molded preforms, and then they are collected and transported in boxes and then transported to the loading device. The whole process will take a long time. The preforms will be in a cooling state. When passing through the preform heating device, if the time is short, it is easy to only heat the surface, and the internal temperature will not reach the predetermined temperature, which will affect the subsequent blow molding process, and the increase in heating time will reduce production efficiency.

[0003] In response to this, the applicant made improvements and applied for and obtained a utility model patent named "A 1.5-step injection molding and bottle blowing machine", with application number 202120648038.5, which can effectively improve production efficiency and improve the surface quality of products. However, with the development of the times, its production efficiency can be further improved. Summary of the invention

[0004] In view of the above problems, the present invention aims to provide an all-in-one injection molding and bottle blowing machine, which has a novel structure, high production efficiency and good surface quality of the finished product.

[0005] The technical solution of the present invention is an all-in-one injection molding and bottle blowing machine, comprising a frame, a raw material melting device and a screw feeding device are arranged at the front of the frame, a bottom plate is connected to the rear of the frame, four corner points of the bottom plate are connected to columns, the tops of the four columns are fixedly connected to an upper template, four columns below the upper template are slidably connected to a turntable template, the turntable template is synchronously driven to rise and fall by four turntable template oil cylinders at the front, back, left and right, a turntable is arranged at the center of the turntable template, the top of the turntable is connected to a turntable driving mechanism, four positions at the front, back, left and right of the bottom of the turntable are respectively provided with mold sliders, and the mold sliders are A series of threaded heads are provided, an injection molding device is provided between the two front columns, a heating device is provided between the two right columns, a bottle blowing device is provided between the two rear columns, and a bottle removing device and a conveyor belt are provided between the two left columns; the raw materials are melted by the raw material melting device and fed into the injection molding device by the screw feeding device to be injection-molded into preforms, the preforms are attached to the threaded heads and the turntable rotates 90° to the heating device to ensure the temperature of the preforms, the turntable rotates another 90° to the bottle blowing device to blow the preforms into bottles, and the turntable continues to rotate 90° to the bottle removing device to remove the bottles from the threaded heads and send them to the conveyor belt for transportation.

[0006] Preferably, the injection molding device includes a mold cavity portion connected to the bottom plate, the top surface of the mold cavity portion is provided with a series of bottle blank cavities, the screw feeding device feeds the molten raw material into the mold cavity portion from the front side and then diverts it to each bottle blank cavity, the mold slider and the threaded head seal the top of the mold cavity portion after the turntable template is lowered into place, and each threaded head extends into the bottle blank cavity to seal the top of the bottle blank cavity; the two front columns above the mold slider are slidably connected with a core pulling plate, the lower part of the core pulling plate is connected to the mold core portion, and the bottom of the mold core portion A series of core rods are provided, and two left and right core pulling plate cylinders and a middle pressure-maintaining cylinder are provided at the upper mold plate above the core pulling plate. The piston rods of the left and right core pulling plate cylinders are connected to the core pulling plate and control the lifting and lowering of the core pulling plate. The piston rod of the pressure-maintaining cylinder is connected to the middle of the core pulling plate and pressurizes and maintains the pressure when the core rod is inserted into the bottle blank cavity; when the core pulling plate is lowered into place, each core rod passes through the mold slider and each threaded head inner hole and is inserted into the corresponding bottle blank cavity to realize mold closing and wait for injection molding. After the injection molding is completed, the bottle blank is fixed in the inner threaded hole of the threaded head by the thread engagement at the top.

[0007] Preferably, the core-pulling plate cylinder comprises a first cylinder barrel fixedly connected to the upper template and in a straight cylindrical shape, the bottom of the first cylinder barrel is connected to the bottom surface of the upper template through a first front cylinder cover, the top of the first cylinder barrel is connected to a first rear cylinder cover, a first piston rod is arranged inside the first cylinder barrel, a first piston is arranged on the top of the first piston rod, and the bottom of the first piston rod is connected to the core-pulling plate; the pressure-maintaining cylinder comprises a second cylinder barrel fixedly connected to the upper template, the bottom of the second cylinder barrel is connected to the bottom surface of the upper template through a second front cylinder cover, the top of the second cylinder barrel is connected to a second rear cylinder cover, a second piston rod is arranged inside the second cylinder barrel, a second piston is arranged on the top of the second piston rod, and the bottom of the second piston rod is connected to the core-pulling plate; the inner side surface of the second cylinder barrel is a stepped section, including a large diameter section at the top and a small diameter section at the bottom, the outer diameter of the second piston is matched with the inner diameter of the small diameter section, a hollow pressure-maintaining cylinder guide rod is arranged at the center of the pressure-maintaining cylinder, a center hole is arranged in the second piston rod, and the pressure-maintaining cylinder guide rod passes through the center hole of the second piston rod and is matched with the inner wall of the center hole of the second piston rod.

[0008] Preferably, the top of the pressure-maintaining cylinder guide rod is fixedly connected to the center of the second rear cylinder head, and the bottom of the pressure-maintaining cylinder guide rod is an outwardly protruding cylindrical block, which is adapted to the center hole of the second piston rod. The top of the center hole passes through the top surface of the pressure-maintaining cylinder guide rod, and the bottom extends to the cylindrical block and an exhaust hole is provided on the side wall.

[0009] Preferably, the heating device comprises an upper heating mechanism and a lower heating mechanism arranged between the two right columns; the upper heating mechanism comprises four uprights connected to the turntable template, the tops of the four uprights are laterally connected to an upper mounting plate, an upper heating plate sleeved on the four uprights is arranged below the upper mounting plate, a series of heating core rods are connected to the bottom surface of the upper heating plate, the top of the upper mounting plate is connected to an upper heating plate cylinder, the piston rod of the upper heating plate cylinder passes through the upper mounting plate and is connected to the upper heating plate and controls the lifting of the upper heating plate, when the upper heating plate is lowered into place, the heating core rod passes through the mold slider and each threaded head inner hole and is inserted into the bottle blank to align the bottle The inner side of the blank is heated; the lower heating mechanism comprises a fixed bottom plate connected to the bottom plate, two left and right fixed bottom plate guide rods are vertically connected to the top of the fixed bottom plate, the top of the fixed bottom plate guide rod is connected to a lower heating fixed plate, the bottom surface of the bottom plate is connected to a lower heating cylinder, the piston rod of the lower heating cylinder passes through the bottom plate and the fixed bottom plate and is connected to the bottom surface of the lower heating fixed plate, the top surface of the lower heating fixed plate is connected to a lower heating plate, a series of heating chambers are arranged on the top surface of the lower heating plate, after the turntable template is lowered into place, the lower heating plate is controlled to rise into place by the lower heating cylinder so that each heating chamber is inserted into the outer side of the blank to heat the outer side of the blank.

[0010] Preferably, the bottle blowing device comprises an opening and closing mold mechanism arranged on the bottom plate for closing the side and bottom surfaces of the bottle, a bottle blowing sealing mechanism and a bottle blowing stretching mechanism connected to the top surface of the turntable template; the opening and closing mold mechanism comprises a movable mold assembly and a fixed mold assembly, the inner sides of the movable mold assembly and the fixed mold assembly are respectively provided with a molding plate with a half bottle cavity, and the movable mold assembly and the fixed mold assembly are molded to form a plurality of independent bottle cavities with closed side and bottom surfaces and open top surfaces; the bottle blowing sealing mechanism comprises a sealing guide column connected to the turntable template, a sealing slide plate is sleeved on the sealing guide column, a sealing mounting plate is connected to the top of the sealing guide column, a sealing cylinder is connected to the top surface of the sealing mounting plate, the sealing cylinder piston rod is connected to the sealing slide plate through a connecting rod, the bottom of the sealing slide plate is connected to the sealing plate, and after the turntable template is lowered into place, each of the mold slide blocks The threaded head is inserted into the bottle cavity from the top, and the sealing cylinder controls the sealing slide to descend into place to seal the top of the bottle cavity through the sealing plate; the bottle blowing and stretching mechanism includes a stretching guide rod connected to the four corner points of the top surface of the sealing slide, the top of the stretching guide rod is connected to the stretching mounting plate, the top of the stretching mounting plate is connected to the stretching cylinder, and the four stretching guide rods are sleeved with a stretching plate assembly, the piston rod of the stretching cylinder is connected to the stretching plate assembly, and the bottom surface of the stretching plate assembly is connected to a series of stretching core rods. When the stretching cylinder descends, all the stretching core rods are driven by the stretching plate assembly to be inserted into each bottle blank inner hole respectively, and a series of blowing connectors are arranged on the sealing plate, the inner end of each blowing connector is respectively connected to each bottle blank inner hole, and the outer end is respectively connected to a high-pressure air source, and the bottle blowing process is realized by the combination of blowing and stretching after the mold closing and sealing actions are completed.

[0011] Preferably, the mold slider includes a left half slider and a right half slider, the threaded head includes a left half threaded head and a right half threaded head, the left half threaded head is connected to the left half slider, the right half threaded head is connected to the right half slider, the left half slider and the right half slider are tightened by a tension spring, and the top surfaces of the left half slider and the right half slider are provided with triangular grooves at the intersection of the left and right ends.

[0012] Preferably, the bottle demoulding device includes a demoulding guide rod connected to the turntable template, the top of the demoulding guide rod is connected to a demoulding fixed plate, the top surface of the demoulding fixed plate is connected to a demoulding cylinder, the demoulding guide rod is provided with a demoulding movable plate, the piston rod of the demoulding cylinder is connected to the demoulding movable plate to control the lifting of the demoulding movable plate, both sides of the demoulding movable plate are connected with vertical plug plates, the bottom of the plug plate is a triangular structure that is wide at the top and narrow at the bottom; the demoulding cylinder controls the demoulding movable plate to move downward, inserts the plug plate into the triangular groove, causes the left half slider and the right half slider to separate, and then drives the left half thread head and the right half thread head to separate, so that the bottle falls off to the conveyor belt and is transported away.

[0013] Preferably, the turntable drive mechanism includes a mounting base connected to the top surface of the turntable template, a servo motor is connected to the top of the mounting base, a reducer, a coupling and a transmission shaft are arranged inside the mounting base, the output shaft of the servo motor is connected to the reducer and then connected to the transmission shaft through a coupling, the bottom of the transmission shaft is connected to the center of the turntable, and the rotation angle and rotation position of the turntable are controlled by the servo motor.

[0014] Preferably, protective covers are provided on the four side surfaces of the outer side of the column: front, rear, left, and right.

[0015] The invention has a novel structure, greatly improves the production efficiency of the bottle blowing machine, simplifies the intermediate mechanism, and enables granular raw materials to be directly blown into complete bottles on one machine, with high production efficiency and good product surface quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the present invention after the protective cover is installed;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure after removing some of the shields;

[0018] Figure 3 It is a schematic diagram of the structure of the injection molding device, the heating device, the bottle blowing device, and the bottle removing device in the present invention;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;

[0020] Figure 5 It is a schematic diagram of the connection structure of the injection molding device in the present invention;

[0021] Figure 6 It is a schematic diagram of the connection structure of the heating device in the present invention;

[0022] Figure 7 It is a schematic diagram of the connection structure of the bottle blowing device in the present invention;

[0023] Figure 8 for Figure 7 Structural diagram of the middle blow bottle sealing mechanism and the blow bottle stretching mechanism;

[0024] Fig. 9 It is a schematic diagram of the connection structure of the bottle removing device in the present invention;

[0025] Fig.10 for Fig. 9 Schematic diagram of the structure of the bottle removal device, mold slider, and thread head;

[0026] Fig.11 for Fig.10The schematic diagram of the structure in which the right half slider and part of the right half thread head are removed;

[0027] Fig.12 It is a schematic diagram of the connection structure of the turntable drive mechanism, the turntable, the mold slider, and the threaded head in the present invention;

[0028] Fig.13 It is a structural schematic diagram of the core-pulling plate cylinder and the pressure-maintaining cylinder in the present invention;

[0029] Fig.14 for Fig.13 Cross-sectional view of the internal structure at the middle oil cylinder;

[0030] Fig.15 for Fig.13 Structural diagram of the middle core-pulling plate cylinder and the pressure-maintaining cylinder when they are in place when they descend;

[0031] Fig.16 for Fig.15 Cross-sectional view of the internal structure at the middle oil cylinder;

[0032] Among them: 1-frame; 2-raw material melting device; 3-screw feeding device; 4-bottom plate; 5-column; 6-upper template; 7-turntable template; 8-turntable template oil cylinder; 9-turntable; 10-turntable driving mechanism; 101-mounting seat; 102-servo motor; 11-mold slider; 111-left half slider; 112-right half slider; 113-triangular groove; 12-thread head; 121-left half thread head; 122-right half thread head; 13—injection molding device; 131—mold cavity; 132—core pulling plate; 133—mold core; 134—core rod; 135—core pulling plate oil cylinder; 136—pressure holding oil cylinder; 14—heating device; 141—upper heating mechanism; 1411—vertical rod; 1412—upper mounting plate; 1413—upper heating plate; 1414—heating core rod; 1415—upper heating plate oil cylinder; 142—lower heating mechanism; 1421—fixed bottom plate; 1 422—fixed bottom plate guide rod; 1423—lower heating fixed plate; 1425—lower heating plate; 1426—heating chamber; 15—bottle blowing device; 151—opening and closing mold mechanism; 1511—movable mold assembly; 1512—fixed mold assembly; 1513—forming plate; 152—bottle blowing and sealing mechanism; 1521—sealing guide column; 1522—sealing slide plate; 1523—sealing mounting plate; 1524—sealing oil cylinder; 1525—sealing plate ; 1526—locking and sealing cylinder; 153—bottle blowing and stretching mechanism; 1531—stretching guide rod; 1532—stretching mounting plate; 1533—stretching cylinder; 1534—stretching plate assembly; 1535—stretching core rod; 154—blowing connector; 16—bottle stripping device; 161—demolding guide rod; 162—demolding fixed plate; 163—demolding cylinder; 164—demolding movable plate; 165—insert plate; 17—conveyor belt; 18—shield. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] like Figures 1 to 4 As shown, the present invention provides an all-in-one injection molding and bottle blowing machine, including a frame 1, a raw material melting device 2 and a screw feeding device 3 are arranged at the front of the frame 1, a bottom plate 4 is connected to the rear of the frame 1, four corner points of the bottom plate 4 are connected to columns 5, the tops of the four columns 5 are fixedly connected to an upper template 6, and a turntable template 7 is slidably connected to the four columns 5 below the upper template 6. The turntable template 7 is synchronously driven to rise and fall by four turntable template oil cylinders 8 at the front, back, left and right sides. A turntable 9 is arranged at the center of the turntable template 7, and a turntable driving mechanism 10 is connected to the top of the turntable 9. Four positions at the front, back, left and right of the bottom of the turntable 9 are respectively arranged with mold sliders 11, and a series of The threaded head 12 of the row is provided, an injection molding device 13 is arranged between the two front columns 5, a heating device 14 is arranged between the two right columns 5, a bottle blowing device 15 is arranged between the two rear columns 5, and a bottle removing device 16 and a conveyor belt 17 are arranged between the two left columns 5; the raw material is melted by the raw material melting device 2 and fed into the injection molding device 13 by the screw feeding device 3 to be injection-molded into a preform, the preform is attached to the threaded head 12 and the turntable 9 is rotated 90° to the heating device 14 to ensure the temperature of the preform, the turntable 9 is rotated 90° again to the bottle blowing device 15 to blow the preform into a bottle, and the turntable 9 continues to rotate 90° to the bottle removing device 16 to drop the bottle from the threaded head 12 to the conveyor belt 17 for transportation.

[0035] In the above scheme, if Figure 5As shown, the injection molding device 13 includes a mold cavity portion 131 connected to the bottom plate 4, and a series of preform cavities are arranged on the top surface of the mold cavity portion 131. The screw feeding device 3 feeds the molten raw material into the mold cavity portion 131 from the front side and then divides it into each preform cavity. The mold slider 11 and the threaded head 12 seal the top of the mold cavity portion 131 after the turntable template 7 is lowered into place, and each threaded head 12 extends into the preform cavity to seal the top of the preform cavity; the two front columns 5 above the mold slider 11 are slidably connected with a core pulling plate 132, and the mold core portion 133 is connected below the core pulling plate 132, and the bottom of the mold core portion 133 is provided with A series of core rods 134, two left and right core pulling plate cylinders 135 and a middle pressure-maintaining cylinder 136 are arranged at the upper mold plate 6 above the core pulling plate 132, the piston rods of the left and right core pulling plate cylinders 135 are connected to the core pulling plate 132 and control the lifting and lowering of the core pulling plate 132, the piston rod of the pressure-maintaining cylinder 136 is connected to the middle of the core pulling plate 132 and pressurizes and maintains the pressure when the core rod 134 is inserted into the bottle blank cavity; when the core pulling plate 132 is lowered into place, each core rod 134 passes through the mold slider 11 and the inner hole of each threaded head 12 and is inserted into the corresponding bottle blank cavity to realize mold closing and wait for injection molding, and the bottle blank after injection molding is fixed in the inner threaded hole of the threaded head 12 by the thread engagement at the top.

[0036] Among them, Figures 13 to 16 As shown, the core-pulling plate cylinder 135 includes a first cylinder 1351 fixedly connected to the upper template 6 and in a straight cylindrical shape, the bottom of the first cylinder 1351 is connected to the bottom surface of the upper template 6 through a first front cylinder cover 1352, the top of the first cylinder 1351 is connected to a first rear cylinder cover 1353, a first piston rod 1354 is arranged inside the first cylinder 1351, a first piston 1355 is arranged on the top of the first piston rod 1354, and the bottom of the first piston rod 1354 is connected to the core-pulling plate 132; the pressure-maintaining cylinder 136 includes a second cylinder 1361 fixedly connected to the upper template 6, the bottom of the second cylinder 1361 is connected to the bottom surface of the upper template 6 through a second front cylinder cover 1362, the top of the second cylinder 1361 is connected to a second rear cylinder cover 1353 Cylinder cover 1363, a second piston rod 1364 is arranged inside the second cylinder barrel 1361, a second piston 1365 is arranged on the top of the second piston rod 1364, and the bottom of the second piston rod 1364 is connected to the core-pulling plate 132; the inner side surface of the second cylinder barrel 1361 is a stepped section, including a large-diameter section 13611 at the top and a small-diameter section 13612 at the bottom, the outer diameter of the second piston 1365 is matched with the inner diameter of the small-diameter section 13612, a hollow pressure-maintaining cylinder guide rod 1366 is arranged at the center of the pressure-maintaining cylinder 136, a center hole is arranged in the second piston rod 1364, and the pressure-maintaining cylinder guide rod 1366 passes through the center hole of the second piston rod 1364 and is matched with the inner wall of the center hole of the second piston rod 1364.

[0037] Specifically, the top of the pressure-maintaining cylinder guide rod 1366 is fixedly connected to the center of the second rear cylinder cover 1363, and the bottom of the pressure-maintaining cylinder guide rod 1366 is an outwardly protruding cylindrical block, which is adapted to the center hole of the second piston rod 1364. The top of the center hole passes through the top surface of the pressure-maintaining cylinder guide rod 1366, and the bottom extends to the cylindrical block and is provided with an exhaust hole 13661 on the side wall.

[0038] During the lifting stage, the left and right core-pulling plate cylinders 135 work to realize the lifting of the first piston rod 1354, and then the lifting of the core-pulling plate 132. During this lifting process, the core-pulling plate 132 drives the second piston rod 1364 to descend synchronously. At this time, there is a gap between the second piston 1365 and the large-diameter section 13611 of the second cylinder 1361. The hydraulic oil above and below the second piston 1365 is in a connected state, and the upper and lower pressures are balanced, which can ensure the normal downward movement of the second piston rod 1364. When the first piston 1355 drops into place, the second piston 1365 enters the small diameter section 13612 of the second cylinder 1361. At this time, the second piston 1365 is in close contact with the inner wall of the small diameter section 13612. The pressure is maintained by injecting high-pressure hydraulic oil into the oil pipe at the top of the second cylinder 1361. The hydraulic oil pressure above the second piston 1365 acts on the top surface of the second piston 1365, and the force is applied to the core pulling plate 132 through the second piston rod 1364 to maintain the pressure, so that the core pulling plate 132 obtains a strong pressure maintaining pressure.

[0039] Among them, Figure 6As shown, the heating device 14 includes an upper heating mechanism 141 and a lower heating mechanism 142 arranged between the two right columns 5; the upper heating mechanism 141 includes four vertical rods 1411 connected to the turntable template 7, the top of the four vertical rods 1411 is horizontally connected to an upper mounting plate 1412, an upper heating plate 1413 sleeved on the four vertical rods 1411 is arranged below the upper mounting plate 1412, a series of heating core rods 1414 are connected to the bottom surface of the upper heating plate 1413, the top of the upper mounting plate 1412 is connected to an upper heating plate cylinder 1415, the piston rod of the upper heating plate cylinder 1415 passes through the upper mounting plate 1412 and is connected to the upper heating plate 1413 and controls the lifting of the upper heating plate 1413, when the upper heating plate 1413 is lowered into place, the heating core rod 1414 passes through the mold slider 11 and each threaded head 12 The lower heating mechanism 142 comprises a fixed bottom plate 1421 connected to the bottom plate 4, and two fixed bottom plate guide rods 1422 are vertically connected to the top of the fixed bottom plate 1421, and a lower heating fixing plate 1423 is connected to the top of the fixed bottom plate guide rod 1422, and a lower heating cylinder is connected to the bottom surface of the bottom plate 4, and a piston rod of the lower heating cylinder passes through the bottom plate 4 and the fixed bottom plate 1421 and is connected to the bottom surface of the lower heating fixing plate 1423, and a lower heating plate 1425 is connected to the top surface of the lower heating fixing plate 1423, and a series of heating chambers 1426 are arranged on the top surface of the lower heating plate 1425, and after the turntable template 7 is lowered into place, the lower heating plate 1425 is controlled to rise into place by the lower heating cylinder so that each heating chamber 1426 is inserted into the outer side of the preform to heat the outer side of the preform.

[0040] Among them, Figure 7 and Figure 8As shown, the bottle blowing device 15 includes a mold opening and closing mechanism 151 arranged on the bottom plate 4 to seal the side and bottom surfaces of the bottle, a bottle blowing and sealing mechanism 152 connected to the top surface of the turntable template 7, and a bottle blowing and stretching mechanism 153; the mold opening and closing mechanism 151 includes a movable mold assembly 1511 and a fixed mold assembly 1512, and the inner sides of the movable mold assembly 1511 and the fixed mold assembly 1512 are respectively provided with a molding plate 1513 with a half bottle cavity, and the movable mold assembly 1511 and the fixed mold assembly 1512 are molded to form a plurality of independent bottle cavities with closed side and bottom surfaces and open top surfaces; the bottle blowing and sealing mechanism 152 and the bottle blowing and stretching mechanism 153 are connected to the top surface of the turntable template 7; the mold opening and closing mechanism 151 includes a movable mold assembly 1511 and a fixed mold assembly 1512, and the inner sides of the movable mold assembly 1511 and the fixed mold assembly 1512 are respectively provided with a molding plate 1513 with a half bottle cavity. After the movable mold assembly 1511 and the fixed mold assembly 1512 are molded together, a plurality of independent bottle cavities with closed side and bottom surfaces and open top surfaces are formed; The mechanism 152 includes a sealing guide column 1521 connected to the turntable template 7, a sealing slide 1522 is sleeved on the sealing guide column 1521, a sealing mounting plate 1523 is connected to the top of the sealing guide column 1521, a sealing cylinder 1524 is connected to the top surface of the sealing mounting plate 1523, a piston rod of the sealing cylinder 1524 is connected to the sealing slide 1522 through a connecting rod, a sealing plate 1525 is connected to the bottom of the sealing slide 1522, and a locking sealing cylinder 1526 is provided on the turntable template 7 on both sides of the sealing slide 1522. After the turntable template 7 is lowered into place, the mold slide Each thread head 12 on 11 is inserted into the bottle cavity from the top, and the sealing cylinder 1524 controls the sealing slide 1522 to descend to the position to seal the top of the bottle cavity through the sealing plate 1525, and at the same time, the locking sealing cylinder 1526 extends to lock the sealing slide 1522; the bottle blowing stretching mechanism 153 includes a stretching guide rod 1531 connected to the four corner points of the top surface of the sealing slide 1522, the top of the stretching guide rod 1531 is connected to a stretching mounting plate 1532, the top of the stretching mounting plate 1532 is connected to a stretching cylinder 1533, and the four stretching guide rods 1531 are sleeved with a stretching plate assembly 1534, the piston rod of the stretching cylinder 1533 is connected to the stretching plate assembly 1534, and a series of stretching core rods 1535 are connected to the bottom surface of the stretching plate assembly 1534. When the stretching cylinder 1533 descends, all the stretching core rods 1535 are driven by the stretching plate assembly 1534 to be inserted into each inner hole of the bottle blank respectively. A series of blowing connectors 154 are arranged on the sealing plate 1525, and the inner end of each blowing connector 154 is connected to each inner hole of the bottle blank respectively, and the outer end is connected to a high-pressure air source respectively. After the mold closing and sealing actions are completed, the bottle blowing process is realized by the combination of blowing and stretching.

[0041] Specifically, Fig.10 and Fig.11As shown, the mold slider 11 includes a left half slider 111 and a right half slider 112, and the threaded head 12 includes a left half threaded head 121 and a right half threaded head 122. The left half threaded head 121 is connected to the left half slider 111, and the right half threaded head 122 is connected to the right half slider 112. The left half slider 111 and the right half slider 112 are tightened by a tension spring, and the top surfaces of the left half slider 111 and the right half slider 112 are provided with triangular grooves 113 at the intersection of the left and right ends.

[0042] In addition, if Figures 9 to 11 As shown, the bottle stripping device 16 includes a stripping guide rod 161 connected to the turntable template 7, the top of the stripping guide rod 161 is connected to a stripping fixed plate 162, the top surface of the stripping fixed plate 162 is connected to a stripping cylinder 163, the stripping guide rod 161 is provided with a stripping movable plate 164, the piston rod of the stripping cylinder 163 is connected to the stripping movable plate 164 to control the lifting and lowering of the stripping movable plate 164, and vertical plug plates 165 are connected on both sides of the stripping movable plate 164, and the bottom of the plug plate 165 is a triangular structure that is wide at the top and narrow at the bottom; the stripping cylinder 163 controls the stripping movable plate 164 to move downward, inserts the plug plate 165 into the triangular groove 113, causes the left half slider 111 and the right half slider 112 to separate, and then drives the left half thread head 121 and the right half thread head 122 to separate, so that the bottle falls off to the conveyor belt 17 and is transported away.

[0043] Further, such as Fig.12 As shown, the turntable drive mechanism 10 includes a mounting base 101 connected to the top surface of the turntable template 7, a servo motor 102 is connected to the top of the mounting base 101, a reducer, a coupling and a transmission shaft are arranged inside the mounting base 101, the output shaft of the servo motor 102 is connected to the reducer and then connected to the transmission shaft through a coupling, the bottom of the transmission shaft is connected to the center of the turntable 9, and the rotation angle and rotation position of the turntable 9 are controlled by the servo motor 101.

[0044] Further, such as Figure 1 As shown, the four side surfaces of the outer side of the column 5, namely, front, rear, left, and right, are provided with protective covers 18 .

[0045] The working principle of the present invention is as follows:

[0046] In the first stage, the solid plastic raw material continuously enters the raw material melting device 2 through the hopper, and is heated into molten plastic inside and then fed into the injection molding device 13 through the screw feeding device 3. Before the molten plastic enters the mold cavity 131, the four turntable template oil cylinders 8 on the front, back, left and right control the turntable template 7 to drop into place, so that the mold slide 11 at the bottom of the turntable 9 drops into place, and the threaded head 12 seals the top of the mold cavity 131. Each threaded head 12 extends into the bottle blank cavity to seal the top of the bottle blank cavity, and then the upper template 6 is pressed. The left and right core pulling plate cylinders 135 control the core pulling plate 132 to descend into place, and each core rod 134 passes through the mold slider 11 and the inner hole of each threaded head 12 and is inserted into the corresponding bottle blank cavity while keeping the seal at the top. Then the piston rod of the pressure holding cylinder 136 presses on the middle part of the core pulling plate 132 to apply a large pressure to ensure that the core pulling plate 132 will not move due to the injection pressure during the injection molding process. Then the molten plastic enters the mold cavity part 131 under the conveyance of the screw feeding device 3 and is diverted to each bottle blank cavity for injection molding.

[0047] In the second stage, after the injection molding is completed, the pressure-holding cylinder 136 is reset, and the left and right core-pulling plate cylinders 135 are reset, driving the core-pulling plate 132 to move upward so that the core rod 134 is pulled out and finally reset. Then the turntable template cylinder 8 controls the turntable template 7 to rise to the position and reset. The preform product is fixed in each threaded hole of the thread head 12 through the external thread at the top edge. The preform product follows the thread head 12 to withdraw upward and successfully detach from the mold cavity 131, and the preform product is taken out.

[0048] In the third stage, the servo motor 102 drives the turntable 9 to rotate 90° through the reducer, coupling and transmission shaft, and the bottle blanks on the row of threaded heads 12 originally above the mold cavity 131 rotate to the heating device 14. At this time, whether the bottle blanks need to be heated depends on the bottle blowing conditions at the bottle blowing device 15 at the next station. If the bottle blowing conditions at the bottle blowing device 15 are stable and the bottle blank temperature is appropriate, after the turntable template 7 is lowered into place, the upper heating mechanism 141 and the lower heating mechanism 142 do not operate, so that a row of bottle blanks on the threaded heads 12 are suspended in the air, waiting for the bottle blowing in the next station to be completed, and then the turntable 9 is directly rotated 90° to send this group of bottle blanks to the bottle blowing device 15 to wait for bottle blowing. If the bottle blowing device 15 in the next station feeds back that the preform temperature is not high enough, then at the heating device 14, the upper heating plate oil cylinder 1415 in the upper heating mechanism 141 controls the upper heating plate 1413 to descend to the position, so that the heating core rod 1414 passes through the mold slider 11 and the inner hole of each threaded head 12 and then is inserted into the bottle preform to heat the inner side of the bottle preform; at the same time, the lower heating oil cylinder of the lower heating mechanism 142 controls the lower heating plate 1425 to ascend to the position so that each heating cavity 1426 is inserted into the outer side of the bottle preform to heat the outer side of the bottle preform, and the cooperation of the upper heating mechanism 141 and the lower heating mechanism 142 heats the inner and outer surfaces of the bottle preform at the same time, ensuring that the bottle blowing work in the bottle blowing device 15 is carried out normally. After heating, the upper heating mechanism 141 and the lower heating mechanism 142 respectively ascend to the position and reset and descend to the position and reset.

[0049] In the fourth stage, the turntable 9 rotates 90° to send the group of preforms at the heating device 14 to the bottle blowing device 15, and the movable mold assembly 1511 in the mold opening and closing mechanism 151 moves and closes with the fixed mold assembly 1512. After the movable mold assembly 1511 and the fixed mold assembly 1512 are closed, a plurality of independent bottle cavities with closed sides and bottom and open top are formed. After the turntable template 7 is lowered into place, the mold slider 11 and each threaded head 12 on the bottom of the turntable 9 are lowered into place accordingly, and the preforms connected to the threaded heads 12 enter the bottle cavity. The sealing cylinder 1524 in the bottle blowing and sealing mechanism 152 controls the sealing slide 1522 to move downward into place, and the top of the bottle cavity is sealed by the sealing plate 1525. The sealing cylinders 1526 on both sides extend to lock the sealing slide 1522 to prevent the sealing slide 1522 and the sealing plate 1525 from moving during the bottle blowing process. Then, the stretching cylinder 1533 in the bottle blowing and stretching mechanism 153 controls the stretching plate assembly 1534 to descend, so that all the stretching core rods 1535 are respectively inserted into the inner hole of each bottle blank to stretch the bottle blank. In this process, the high-pressure air source blows air to each bottle cavity through the blowing connector 154. The bottle blowing process is realized by the combination of blowing and stretching, and the bottle blank is blown into a bottle.

[0050] In the fifth stage, after the bottle is blown, the movable mold assembly 1511 opens the mold, the turntable template 7 rises and resets, the sealing cylinder 1524 controls the sealing slide plate 1522 to move upward and reset, the stretching cylinder 1533 controls the stretching plate assembly 1534 to move upward and reset, the turntable 9 rotates 90° to rotate the entire row of bottles at the bottle blowing device 15 to the bottle stripping device 16, the demoulding cylinder 163 of the bottle stripping device 16 controls the demoulding movable plate 164 to descend, and the insert plate 165 is inserted into the triangular groove 113 between the top surfaces of the left and right ends of the left half slider 111 and the right half slider 112. During the descent of the insert plate 165, the left half slider 111 and the right half slider 112 are separated, and the left half thread head 121 and the right half thread head 122 are separated, so that the bottle falls off to the conveyor belt 17 and is transported away. Then the demoulding cylinder 163 controls the demoulding movable plate 164 to move upward and reset, and the left half slider 111 and the right half slider 112 are tightly engaged again under the action of the stretching spring. Then the turntable 9 rotates 90° to rotate the empty mold slide 11 at the bottle removal device 16 to the injection molding device 13 to wait for the next injection molding.

[0051] Repeat the above actions, the four stations work synchronously, the four processes of preform injection, preform heating, preform blow molding and bottle shedding are carried out simultaneously, the production efficiency is very high and the product quality is good.

[0052] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An all-in-one injection molding and bottle blowing machine, comprising a frame (1), characterized in that: The front part of the frame (1) is provided with a raw material melting device (2) and a screw feeding device (3); the rear part of the frame (1) is connected with a bottom plate (4); four corner points of the bottom plate (4) are connected with upright posts (5); the tops of the four upright posts (5) are fixedly connected with an upper template (6); the four upright posts (5) below the upper template (6) are slidably connected with a turntable template (7); the turntable template (7) is synchronously driven to rise and fall by four turntable template oil cylinders (8) at the front, rear, left and right sides; a turntable (9) is provided at the center of the turntable template (7); the top of the turntable (9) is connected with a turntable driving mechanism (10); four positions at the front, rear, left and right sides of the bottom of the turntable (9) are respectively provided with mold sliders (11); a series of thread heads (12) are provided on the mold slider (11); two front side An injection molding device (13) is arranged between the two columns (5), a heating device (14) is arranged between the two right columns (5), a bottle blowing device (15) is arranged between the two rear columns (5), and a bottle removing device (16) and a conveyor belt (17) are arranged between the two left columns (5); the raw material is melted by the raw material melting device (2) and then fed into the injection molding device (13) by the screw feeding device (3) to be injection-molded into a preform; the preform is attached to the thread head (12) and rotated 90 degrees by the turntable (9) to the heating device (14) to ensure the temperature of the preform; the turntable (9) is further rotated 90 degrees to the bottle blowing device (15) to blow the preform into a bottle; the turntable (9) is further rotated 90 degrees to the bottle removing device (16) to remove the bottle from the thread head (12) and to be sent to the conveyor belt (17) for delivery.

2. The integrated injection molding and bottle blowing machine according to claim 1, characterized in that: The injection molding device (13) comprises a mold cavity portion (131) connected to a bottom plate (4), a series of preform cavities being arranged on the top surface of the mold cavity portion (131), the screw feeding device (3) feeding molten raw materials into the mold cavity portion (131) from the front side and then diverting the molten raw materials into each preform cavity, the mold slider (11) and the threaded head (12) sealing the top of the mold cavity portion (131) after the turntable template (7) is lowered into place, each threaded head (12) correspondingly extends into the preform cavity to seal the top of the preform cavity; a core pulling plate (132) is slidably connected to the two front columns (5) above the mold slider (11), a mold core portion (133) is connected below the core pulling plate (132), and a mold core portion (133) is arranged at the bottom A series of core rods (134) are provided at the upper mold plate (6) above the core pulling plate (132), with two left and right core pulling plate oil cylinders (135) and a middle pressure holding oil cylinder (136), the piston rods of the left and right core pulling plate oil cylinders (135) are connected to the core pulling plate (132) and control the lifting and lowering of the core pulling plate (132), the piston rod of the pressure holding oil cylinder (136) is connected to the middle of the core pulling plate (132) and performs pressure holding when the core rod (134) is inserted into the bottle blank cavity; when the core pulling plate (132) is lowered into place, each core rod (134) passes through the mold slider (11) and the inner hole of each threaded head (12) and is inserted into the corresponding bottle blank cavity to realize mold closing and wait for injection molding, and after the injection molding is completed, the bottle blank is fixed in the inner thread hole of the threaded head (12) through the thread engagement at the top.

3. The integrated injection molding and bottle blowing machine according to claim 2, characterized in that: The core-pulling plate oil cylinder (135) comprises a first cylinder (1351) in a straight cylindrical shape fixedly connected in the upper mold plate (6); the bottom of the first cylinder (1351) is connected to the bottom surface of the upper mold plate (6) via a first front cylinder cover (1352); the top of the first cylinder (1351) is connected to a first rear cylinder cover (1353); a first piston rod (1354) is arranged inside the first cylinder (1351); a first piston (1355) is arranged at the top of the first piston rod (1354); and the bottom of the first piston rod (1354) is connected to the core-pulling plate (132); the pressure-maintaining oil cylinder (136) comprises a second cylinder (1361) fixedly connected in the upper mold plate (6); the bottom of the second cylinder (1361) is connected to the bottom surface of the upper mold plate (6) via a second front cylinder cover (1362); the top of the second cylinder (1361) is connected to a second A rear cylinder cover (1363) is provided inside the second cylinder barrel (1361), a second piston rod (1364) is provided at the top of the second piston rod (1364), and the bottom of the second piston rod (1364) is connected to the core-pulling plate (132); the inner side surface of the second cylinder barrel (1361) is a stepped section, including a large-diameter section (13611) at the top and a small-diameter section (13612) at the bottom, the outer diameter of the second piston (1365) is matched with the inner diameter of the small-diameter section (13612), a hollow pressure-maintaining cylinder guide rod (1366) is provided at the center of the pressure-maintaining cylinder (136), a center hole is provided in the second piston rod (1364), and the pressure-maintaining cylinder guide rod (1366) passes through the center hole of the second piston rod (1364) and is matched with the inner wall of the center hole of the second piston rod (1364).

4. The integrated injection molding and bottle blowing machine according to claim 3, characterized in that: The top of the pressure-maintaining cylinder guide rod (1366) is fixedly connected to the center of the second rear cylinder cover (1363), and the bottom of the pressure-maintaining cylinder guide rod (1366) is an outwardly protruding cylindrical block, which is adapted to the center hole of the second piston rod (1364). The top of the center hole passes through the top surface of the pressure-maintaining cylinder guide rod (1366), and the bottom extends to the cylindrical block and is provided with an exhaust hole (13661) on the side wall.

5. The integrated injection molding and bottle blowing machine according to claim 1, characterized in that: The heating device (14) comprises an upper heating mechanism (141) and a lower heating mechanism (142) arranged between two right uprights (5); the upper heating mechanism (141) comprises four uprights (1411) connected to the turntable template (7); an upper mounting plate (1412) is laterally connected to the tops of the four uprights (1411); an upper heating plate (1413) sleeved on the four uprights (1411) is arranged below the upper mounting plate (1412); A series of heating core rods (1414) are connected to the bottom of the hot plate (1413), and an upper heating plate oil cylinder (1415) is connected to the top of the upper mounting plate (1412). The piston rod of the upper heating plate oil cylinder (1415) passes through the upper mounting plate (1412) and is connected to the upper heating plate (1413) to control the lifting of the upper heating plate (1413). When the upper heating plate (1413) is lowered into place, the heating core rods (1414) pass through the mold slider (11) and each thread. The head (12) is inserted into the inner hole of the bottle blank to heat the inner side of the bottle blank; the lower heating mechanism (142) comprises a fixed bottom plate (1421) connected to the bottom plate (4); the top of the fixed bottom plate (1421) is vertically connected to two left and right fixed bottom plate guide rods (1422); the top of the fixed bottom plate guide rods (1422) is connected to a lower heating fixed plate (1423); the bottom surface of the bottom plate (4) is connected to a lower heating cylinder; the piston rod of the lower heating cylinder passes through the bottom plate (4) and the fixed bottom plate (1421) are connected to the bottom surface of the lower heating fixed plate (1423), the top surface of the lower heating fixed plate (1423) is connected to the lower heating plate (1425), and the top surface of the lower heating plate (1425) is provided with a series of heating cavities (1426). After the turntable template (7) is lowered into place, the lower heating plate (1425) is controlled by the lower heating cylinder to rise into place so that each heating cavity (1426) is inserted into the outer side of the preform to heat the outer side of the preform.

6. The integrated injection molding and bottle blowing machine according to claim 1, characterized in that: The bottle blowing device (15) comprises a mold opening and closing mechanism (151) arranged on a bottom plate (4) for sealing the side and bottom surfaces of the bottle, a bottle blowing and sealing mechanism (152) connected to the top surface of a turntable template (7), and a bottle blowing and stretching mechanism (153); the mold opening and closing mechanism (151) comprises a movable mold assembly (1511) and a fixed mold assembly (1512); the inner surfaces of the movable mold assembly (1511) and the fixed mold assembly (1512) are respectively provided with a molding plate (1513) with a half bottle cavity; after the movable mold assembly (1511) and the fixed mold assembly (1512) are molded together, a plurality of independent bottle cavities with closed side and bottom surfaces and open top surfaces are formed; the bottle blowing and sealing mechanism (152) is connected to the top surface of a turntable template (7); the bottle blowing and sealing mechanism (151) is connected to the top surface of a turntable template (7); ... 152) comprises a sealing guide column (1521) connected to the turntable template (7), a sealing slide plate (1522) is sleeved on the sealing guide column (1521), a sealing mounting plate (1523) is connected to the top of the sealing guide column (1521), a sealing oil cylinder (1524) is connected to the top surface of the sealing mounting plate (1523), a piston rod of the sealing oil cylinder (1524) is connected to the sealing slide plate (1522) through a connecting rod, a sealing plate (1525) is connected to the bottom of the sealing slide plate (1522), and locking sealing cylinders (1526) are arranged on the turntable templates (7) on both sides of the sealing slide plate (1522), and after the turntable template (7) is lowered into place Each thread head (12) on the mold slide (11) is inserted into the bottle cavity from the top, and the sealing cylinder (1524) controls the sealing slide (1522) to descend to a position to seal the top of the bottle cavity through the sealing plate (1525), and at the same time, the locking sealing cylinder (1526) extends to lock the sealing slide (1522); the bottle blowing stretching mechanism (153) comprises a stretching guide rod (1531) connected to four corner points of the top surface of the sealing slide (1522), the top of the stretching guide rod (1531) is connected to a stretching mounting plate (1532), the top of the stretching mounting plate (1532) is connected to a stretching cylinder (1533), and the four stretching guide rods (1531) are sleeved with A stretching plate assembly (1534) is provided, the piston rod of the stretching oil cylinder (1533) is connected to the stretching plate assembly (1534), the bottom surface of the stretching plate assembly (1534) is connected to a series of stretching core rods (1535), when the stretching oil cylinder (1533) descends, all the stretching core rods (1535) are driven by the stretching plate assembly (1534) to be inserted into each bottle blank inner hole respectively, and a series of blowing connectors (154) are provided on the sealing plate (1525), the inner end of each blowing connector (154) is respectively connected to each bottle blank inner hole, and the outer end is respectively connected to a high-pressure air source, and after the mold closing and sealing actions are completed, the bottle blowing process is realized by combining blowing and stretching.

7. The integrated injection molding and bottle blowing machine according to claim 1, characterized in that: The mold slider (11) comprises a left slider (111) and a right slider (112); the threaded head (12) comprises a left threaded head (121) and a right threaded head (122); the left threaded head (121) is connected to the left slider (111); the right threaded head (122) is connected to the right slider (112); the left slider (111) and the right slider (112) are tightened by a tension spring; and the top surfaces of the left slider (111) and the right slider (112) are provided with triangular grooves (113) at the intersection of the left and right ends.

8. The integrated injection molding and bottle blowing machine according to claim 7, characterized in that: The bottle removal device (16) comprises a demoulding guide rod (161) connected to the turntable template (7); the top of the demoulding guide rod (161) is connected to a demoulding fixed plate (162); the top surface of the demoulding fixed plate (162) is connected to a demoulding oil cylinder (163); a demoulding movable plate (164) is arranged on the demoulding guide rod (161); a piston rod of the demoulding oil cylinder (163) is connected to the demoulding movable plate (164) to control the lifting and lowering of the demoulding movable plate (164); Vertical insert plates (165) are connected to both sides of the mold moving plate (164), and the bottom of the insert plates (165) is a triangular structure that is wide at the top and narrow at the bottom. The demoulding oil cylinder (163) controls the demoulding moving plate (164) to move downward, insert the insert plates (165) into the triangular groove (113), and promote the separation of the left half slider (111) and the right half slider (112), thereby driving the separation of the left half thread head (121) and the right half thread head (122), so that the bottle falls off and is transported onto the conveyor belt (17).

9. The integrated injection molding and bottle blowing machine according to claim 1, characterized in that: The turntable drive mechanism (10) comprises a mounting seat (101) connected to the top surface of the turntable template (7); a servo motor (102) is connected to the top of the mounting seat (101); a reducer, a coupling and a transmission shaft are arranged inside the mounting seat (101); an output shaft of the servo motor (102) is connected to the reducer and then to the transmission shaft via a coupling; the bottom of the transmission shaft is connected to the center of the turntable (9); and the rotation angle and rotation position of the turntable (9) are controlled by the servo motor (102).

10. The integrated injection molding and bottle blowing machine according to claim 1, characterized in that: Protective covers (18) are provided on the four side surfaces of the front, rear, left and right of the outer side of the upright column (5).

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