Plastic bottle blow molding mold and blow molding process

Abstract

The invention provides a plastic bottle blow molding mold and a blow molding process, and relates to the technical field of blow molding. The plastic bottle blowing mold comprises a fixing base, a mold body is arranged in the middle of the fixing base, supporting blocks are fixedly installed on the two sides of the mold body, and cutting mechanisms are arranged on the two sides of the mold body; the cutting mechanism comprises first toothed rails, the two first toothed rails are fixedly installed on the supporting plate below the mold, first gears are arranged on one sides of the two first toothed rails respectively, the first gears and the first toothed rails are meshed with each other, first guide rods are fixedly installed below the first gears, first placing blocks are arranged on the outer sides of the first guide rods, and the first placing blocks are arranged on the outer sides of the first guide rods. The first placing block is fixedly installed on the fixing base, a second gear is fixedly installed at the bottom of the first guide rod, a third gear is arranged on one side of the second gear, and the third gear and the second gear are meshed with each other. The plastic bottle blowing mold and the blowing process provided by the invention have the advantages that the use is convenient, the automatic degree of plastic bottle production is high, and the plastic bottle production procedures are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of blow molding, in particular to a plastic bottle blow molding mold and a blow molding process. Background Art

[0002] At present, a tubular plastic preform obtained by extrusion or injection molding of a thermoplastic resin is placed in a split mold while hot or heated to a softened state. After the mold is closed, compressed air is immediately introduced into the preform to inflate the plastic preform and cling to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] The preform needs to be heated before blow molding, and then the heated preform is blow molded by the blow molding system. After the plastic bottle is blow molded, there will be excess blanks at the port of the molded plastic bottle, and these excess blanks cannot be cleaned during the blow molding process. The molded plastic bottle needs to be removed from the inside of the mold before it can be cut. The processing will add an extra step to the production process, thereby increasing the production and processing time of the plastic bottle, which is not conducive to improving the production efficiency of the plastic bottle.

[0004] Therefore, it is necessary to provide a plastic bottle blow molding mold and a blow molding process to solve the above-mentioned technical problems. Summary of the invention

[0005] The technical problem solved by the invention is to provide a plastic bottle blow molding mold and a blow molding process which are easy to use, have a high degree of automation in plastic bottle production, and reduce the production procedures of the plastic bottles.

[0006] In order to solve the above technical problems, the present invention provides a plastic bottle blow molding mold, comprising a fixed seat, a mold is arranged in the middle of the fixed seat, support blocks are fixedly installed on both sides of the mold, and cutting mechanisms are arranged on both sides of the mold; The cutting mechanism comprises a rack rail 1, and there are two rack rails 1, which are respectively fixedly mounted on the support plate below the mold, and one gear is respectively arranged on one side of the two rack rails, and the gear 1 and the rack rail 1 are meshed with each other, and a guide rod 1 is fixedly mounted below the gear 1, and a placement block 1 is arranged on the outer side of the guide rod 1, and the placement block 1 is fixedly mounted on a fixed seat, and a gear 2 is fixedly mounted on the bottom of the guide rod 1, and a gear 3 is arranged on one side of the gear 2, and the gear 3 and the gear 2 are meshed with each other, and a guide rod 2 is fixedly mounted on one side of the gear 3, and a placement block 2 is arranged on the outer side of the guide rod 2, The placing block 2 is fixedly mounted on the fixing seat, a gear 4 is fixedly mounted on one end of the guide rod 2, a rack 2 is arranged on the gear 4, the rack 2 and the gear 4 are meshed with each other, a support plate is fixedly mounted on one side of the rack 2, a fastener is arranged in the middle of one side of the support plate, a mounting frame 1 and a mounting frame 2 are respectively fixedly mounted on the upper and lower ends of the fastener on the support plate, a cutter 1 is fixedly mounted on one end of the mounting frame 1, a cutter 2 is fixedly mounted on one end of the mounting frame 2, the cutter 1 is in the same plane with the top of the mold cavity, and the cutter 2 is in the same plane with the bottom of the mold cavity.

[0007] Preferably, a slide groove is provided on the second rack rail, a sliding block is fixedly installed on the bottom of one side of the fixed seat, and the sliding block is slidably arranged inside the slide groove.

[0008] Preferably, a stabilizing hole is provided on the fixing seat, a stabilizing rod is fixedly mounted on one side of the supporting plate, and the stabilizing rod is inserted into the inner side of the stabilizing hole.

[0009] Preferably, the fastener includes a stabilizing frame, which is fixedly mounted on the support plate, and mounting holes are provided on the stabilizing frame and the support frame, a plug-in rod is provided on the inner side of the mounting hole, a mounting plate is fixedly mounted on the outer side of the plug-in rod, and the mounting plate is fitted with one side of the stabilizing frame, a return spring is provided on the outer side of the plug-in rod, and both ends of the return spring are respectively fixedly mounted on the mounting plate and the support plate, a fastening plate is fixedly mounted on one end of the plug-in rod, and the fastening plate and cutter one and cutter two are in the same plane.

[0010] Preferably, mounting plates are fixedly mounted on both sides of the fixing seat, a traction member is arranged on the mounting plates, and the mold is arranged outside the traction member; The traction member includes a second threaded rod, there are two second threaded rods, the two second threaded rods are arranged on the mounting plate opposite to each other, one end of the two second threaded rods is fixedly mounted with a rotating wheel, and belts are arranged outside the two rotating wheels, one end of one of the second threaded rods is fixedly mounted with a second forward and reverse motor, the second forward and reverse motor is fixedly mounted on a fixing seat, the support block is arranged outside the second threaded rod, and the mold is movably mounted on the outside of the second threaded rod through the support block. Preferably, a limiting rod is fixedly mounted on the mounting plate at one side opposite to the second threaded rod, and the mold is slidably disposed on the outside of the limiting rod via a support block.

[0011] Preferably, an adjusting piece is provided on one end of the fixing seat, and the adjusting piece includes a fixing frame, and the fixing frame is fixedly installed on the fixing seat, a threaded rod is rotatably provided on the inner side of the fixing frame, a forward and reverse motor is fixedly installed on the bottom of the threaded rod, a fixing plate is provided on the outer side of the threaded rod, and a blowing pipe is fixedly installed on one end of the fixing plate, and the blowing pipe is provided above the mold.

[0012] Preferably, limit blocks are fixedly installed on both sides of the interior of the fixing frame, limit slots are provided on both sides of the fixing plate, and the limit blocks are slidably arranged inside the limit slots.

[0013] Preferably, a cooling part is provided on the mold, and the cooling part includes an exhaust pipe. A cavity is opened on the inner side of the mold, and the exhaust pipe is arranged on the inner top of the cavity. An exhaust nozzle is fixedly installed on the bottom of the exhaust pipe, a connecting pipe is fixedly installed on one end of the exhaust pipe, an air supply pipe is fixedly installed on the end of the connecting pipe, a refrigerator is fixedly installed on one end of the air supply pipe, and an air pump is fixedly installed on one end of the refrigerator.

[0014] In order to solve the above technical problems, the present invention also provides a plastic bottle blow molding process, comprising the following steps: Step 1: The mold opens to both sides. When opening, the support block drives the rack rail 1 on one side to move. The rack rail 1 moves and drives the gear 1 on one side to rotate. The rotation of the gear 1 drives the lower gear 2 to rotate. Since the gear 2 is meshed with the gear 3, the gear 3 is driven to rotate. The rotation of the gear 3 drives the gear 4 at one end to rotate through the guide rod 2. When the gear 4 rotates, it drives the upper rack rail 2 to move inward. Step 2: The gear rail 2 moves inwards to drive the support plate on one side to move inwards. The inward movement of the support plate will simultaneously drive the fastener on one side and the cutter 1 and cutter 2 at the upper and lower ends to move synchronously; Step 3: When the fastening plate fits the plastic bottle body, gear 4 drives rack 2 to move continuously, so that the fastening plate squeezes the reset spring, causing the fastening plate to move backward, and cutter 1 and cutter 2 at both ends continue to move forward to quickly cut off excess waste at the top and bottom of the plastic bottle.

[0015] Compared with the related art, the plastic bottle blow molding mold and blow molding process provided by the present invention have the following beneficial effects: The invention provides a plastic bottle blow molding mold. Through the arrangement of a cutting mechanism, after the plastic bottle is cooled, a forward and reverse motor 2 is reversed, thereby driving two clamping bodies of the mold to move outwards through a threaded rod 2. When the clamping body moves outwards, a gear rail 1 on one side is driven to move through a support block when it is opened. The gear rail 1 moves and drives a gear 1 on one side to rotate. The rotation of the gear 1 drives a gear 2 below to rotate. Since the gear 2 is meshed with the gear 3, the gear 3 is driven to rotate. The rotation of the gear 3 drives a gear 4 at one end to rotate through a guide rod 2. When the gear 4 rotates, the upper gear rail 2 is driven to move inwards. The inward movement of the gear rail 2 drives a support plate on one side to move inwards. The inward movement of the support plate drives a fastener on one side and a cutter 1 and a cutter 2 at upper and lower ends to move synchronously. When the fastening plate fits the plastic bottle body, the gear 4 drives the gear rail 2 to move continuously, thereby causing the fastening plate to squeeze a reset spring, causing the fastening plate to move backwards. The cutters 1 and 2 at the two ends are continuously improved, and the excess waste at the top and bottom of the plastic bottle is quickly cut off, thereby improving the production efficiency of the plastic bottle.

[0016] The present invention provides a plastic bottle blow molding mold. Through the setting of a cutting mechanism, after the plastic bottle is cooled and formed, a first cutter and a second cutter automatically cut the redundant part of the plastic bottle through mechanical movement. Therefore, compared with manual cutting, the mechanized cutting has higher accuracy, thereby ensuring the integrity of the plastic bottle.

[0017] The invention provides a plastic bottle blow molding process, which can realize automatic cutting and trimming of cooled plastic bottles, has a high degree of automation in the production of plastic bottles, and reduces the production processes of plastic bottles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of the plastic bottle blow molding mold provided by the present invention; Figure 2 for Figure 1 The structural schematic diagram of the cutting mechanism shown; Figure 3 for Figure 2 An enlarged schematic diagram of section A is shown; Figure 4 for Figure 2 A schematic diagram of the structure of the fastener shown; Figure 5 for Figure 4 A schematic cross-sectional view of the fastener shown; Figure 6 for Figure 1 The structural schematic diagram of the traction member shown; Figure 7 for Figure 1 A schematic diagram of the structure of the cooling element shown; Figure 8 for Figure 7A schematic diagram of a partial structure of a cooling element shown; Fig. 9 for Figure 1 The structural schematic diagram of the regulating member shown; Fig.10 for Fig. 9 Schematic diagram of the exploded structure of the regulating member shown.

[0019] Numbers in the figure: 1, fixed seat; 2, adjustment member; 201, fixed frame; 202, forward and reverse motor 1; 203, threaded rod 1; 204, fixed plate; 205, limit groove; 206, limit block; 3, cooling member; 301, connecting pipe; 302, air pipe; 303, refrigerator; 304, air pump; 305, exhaust nozzle; 306, exhaust pipe; 4, mold; 401, cavity; 5, traction member; 501, forward and reverse motor 2; 502, belt; 503, limit rod; 504, threaded rod 2; 505, rotating wheel; 6, cutting mechanism; 601, support plate; 602, cutter 1; 6 03, mounting frame 1; 604, stabilizing frame; 605, rack rail 1; 606, gear 1; 607, placement block 1; 608, guide rod 1; 609, gear 2; 610, gear 3; 611, guide rod 2; 612, placement block 2; 613, gear 4; 614, rack rail 2; 615, slide groove; 616, slider; 617, stabilizing rod; 618, stabilizing hole; 619, fastening plate; 620, plug-in rod; 621, mounting frame 2; 622, cutter 2; 623, mounting hole; 624, reset spring; 625, mounting sheet; 7, support block; 8, mounting plate; 9, air blow pipe. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0021] Please refer to Figure 1 The plastic bottle blow molding mold includes a fixed seat 1 for placing a mold 4. A mold 4 is arranged in the middle of the fixed seat 1. The mold 4 is divided into two clamps. Support blocks 7 are fixedly installed on both sides of the mold 4 to assist the mold 4 to automatically move outward. Cutting mechanisms 6 are arranged on both sides of the mold 4 to automatically cut the plastic bottles after molding and cooling, so as to realize the automatic production of plastic bottles.

[0022] First embodiment:

[0023] Please refer to Figure 2-Figure 5In this embodiment, the cutting mechanism 6 includes a rack 605, and there are two racks 605, which are fixedly installed on the support plate 601 below the mold 4. Gears 606 are respectively arranged on one side of the two racks 605, and the gears 606 and the racks 605 are meshed with each other. A guide rod 608 is fixedly installed below the gear 606, and a placement block 607 is arranged on the outside of the guide rod 608. The placement block 607 is fixedly installed on the fixed seat 1. The guide rod 608 is in a rotating state inside the placement block 607, thereby limiting the guide rod 608. A gear 2 609 is fixedly installed at the bottom of the guide rod 608, and a gear 3 610 is arranged on one side of the gear 2 609. The gear 3 610 and the gear 2 609 are meshed with each other. A guide rod 611 is fixedly installed on one side of 610, and a placement block 612 is arranged outside the guide rod 611. The placement block 612 is fixedly installed on the fixed seat 1. The guide rod 611 is in a rotating state inside the placement block 612, thereby limiting the guide rod 611. A gear 613 is fixedly installed on one end of the guide rod 611, and a rack 614 is arranged on the gear 613. The rack 614 and the gear 613 are meshed with each other. A support plate 601 is fixedly installed on one side of the rack 614, and a slide groove 615 is provided on the rack 614. A slider 616 is fixedly installed on the bottom of one side of the fixed seat 1, and the slider 616 is slidably arranged on the inner side of the slide groove 615. Through the arrangement of the slider 616, the rack 614 can be supported and The limiting effect is that when the rack rail 2 614 is moving, the stability of the rack rail 2 614 during movement can be improved to prevent the rack rail 2 614 from being dislocated and derailed. A fastener is provided in the middle of one side of the support plate 601, and the fastener includes a stabilizing frame 604, which is fixedly installed on the support plate 601. A stabilizing hole 618 is provided on the fixing seat 1. A stabilizing rod 617 is fixedly installed on one side of the support plate 601, and the stabilizing rod 617 is plugged into the inner side of the stabilizing hole 618. When the support plate 601 is moving, the stabilizing rod 617 is placed in the inner side of the stabilizing hole 618 in real time to drag the support plate 601. A mounting hole 623 is provided on the stabilizing frame 604 and the support frame, and a plug-in rod 620 is provided inside the mounting hole 623. 0 is adapted to the mounting hole 623, a mounting piece 625 is fixedly installed on the outer side of the plug-in rod 620, and the mounting piece 625 is fitted with one side of the stabilizing frame 604. A return spring 624 is arranged on the outer side of the plug-in rod 620, and both ends of the return spring 624 are respectively fixedly installed on the mounting piece 625 and the support plate 601, and a fastening plate 619 is fixedly installed on one end of the plug-in rod 620, and the fastening plate 619 and the cutter 1 602 and the cutter 2 622 are in the same plane, and the upper and lower ends of the fastener on the support plate 601 are respectively fixedly installed with the mounting frame 1 603 and the mounting frame 2 621, and the cutter 1 602 is fixedly installed on one end of the mounting frame 1 603, and the cutter 2 622 is fixedly installed on one end of the mounting frame 2 621, which is used to install the cutter 1 602 and the cutter 2 622.It is convenient to replace the cutter 1 602 and the cutter 2 622. The cutter 1 602 is in the same plane with the top of the mold 4 cavity, so that the excess material on the top of the plastic bottle can be cut off. At the same time, it is avoided that the excess is too little during the cutting process. The cutter 2 622 is in the same plane with the bottom of the mold 4 cavity, which is used to accurately grasp the excess position at the bottom of the plastic bottle, thereby avoiding the excess residue at the bottom of the plastic bottle. Specifically, after the plastic bottle is cooled, the forward and reverse motor 2 501 is reversed, thereby driving the two clamps of the mold 4 to move outward through the threaded rod 2 504. When the clamps move outward, the support block 7 drives the rack 1 605 on one side to move when opening. The rack 1 605 moves and drives the gear 1 606 on one side to rotate. The rotation of the gear 1 606 drives the gear 2 609 below to rotate. 609 meshes with gear three 610, thereby driving gear three 610 to rotate. Gear three 610 rotates through guide rod two 611 to drive gear four 613 at one end to rotate. When gear four 613 rotates, it drives the upper rack rail two 614 to move inward. The inward movement of rack rail two 614 drives the support plate 601 on one side to move inward. The inward movement of the support plate 601 will synchronously drive the fastener on one side and the cutter one 602 and cutter two 622 at the upper and lower ends to move synchronously. When the fastening plate 619 fits the plastic bottle body, gear four 613 drives rack rail two 614 to move continuously, so that the fastening plate 619 squeezes the reset spring 624, so that the fastening plate 619 moves backward, and the cutter one 602 and cutter two 622 at both ends continue to improve, and the excess waste on the top and bottom of the plastic bottle is quickly cut off.

[0024] Please refer to Figure 6In this embodiment, a traction member 5 is also included. A mounting plate 8 is fixedly installed on both sides of the fixed seat 1. The traction member 5 is arranged on the mounting plate 8, and the mold 4 is arranged on the outside of the traction member 5; the traction member 5 includes a threaded rod 2 504, and there are two threaded rods 2 504. The two threaded rods 2 504 are relatively arranged on the mounting plate 8. One end of the two threaded rods 2 504 is fixedly installed with a rotating wheel 505, and a belt 502 is arranged on the outside of the two rotating wheels 505. One end of one of the threaded rods 2 504 is fixedly installed with a forward and reverse motor 2 501, and the forward and reverse motor 2 501 is fixedly installed on the fixed seat 1. The support block 7 is arranged on the outside of the threaded rod 2 504, and the mold 4 is movably arranged through the support block 7. It is installed on the outside of the threaded rod 504, and a limiting rod 503 is fixedly installed on the side of the mounting plate 8 opposite to the threaded rod 504. The mold 4 is slidably set on the outside of the limiting rod 503 through the support block 7. Through the setting of the limiting rod 503, the mold 4 is in an auxiliary movement when it moves, thereby improving the stability of the mold 4 when it moves, and can improve the sealing effect when the two clamps of the mold 4 are fitted together, avoiding misalignment between the two clamps. Specifically, the heated tubular material is first placed between the mold cavities, and then the forward and reverse motors 501 work, and the output end rotates to drive the threaded rod 504 on one side to rotate, and the two clamps are driven to approach and fit each other through the support block 7.

[0025] Please refer to Figure 9-10 In this embodiment, an adjusting member 2 is also included, and the adjusting member 2 is arranged on the fixing seat 1. The adjusting member 2 includes a fixing frame 201, and the fixing frame 201 is fixedly installed on the fixing seat 1. A threaded rod 203 is rotatably arranged inside the fixing frame 201, and a forward and reverse motor 202 is fixedly installed at the bottom of the threaded rod. A fixing plate 204 is arranged outside the threaded rod 203, and a blowing pipe 9 is fixedly installed at one end of the fixing plate 204. The blowing pipe 9 is arranged above the mold 4. Limiting blocks 206 are fixedly installed on both sides of the fixing frame 201, and limiting grooves 205 are provided on both sides of the fixing plate 204. The limiting blocks 206 are slidingly arranged. It is arranged on the inner side of the limit groove 205. Through the setting of the limit block 206 and the limit groove 205, when the fixed plate 204 moves outside the threaded rod 203, it is ensured that the fixed plate 204 moves straight up and down, so that the blowing pipe 9 located at one end of the fixed plate 204 can descend straightly, ensuring that the blowing pipe 9 is in a stable state during the descent. Specifically, the forward and reverse motor 202 works, and the output end rotates to drive the upper threaded rod 203 to rotate, thereby driving one side of the fixed plate 204 to move downward. The downward movement of the fixed plate 204 drives the blowing pipe 9 on one side to extend into the mold cavity to blow-mold the plastic bottle.

[0026] The working principle of the plastic bottle blow molding mold provided by the present invention is as follows: The first step: when blow-molding the plastic bottle, first place the heated tubular material between the mold cavities, then the forward and reverse motor 2 501 works, the output end rotates to drive the threaded rod 2 504 on one side to rotate, and the two clamps are driven to approach each other and fit together through the support block 7.

[0027] Then the forward and reverse motor 202 works, the output end rotates to drive the upper threaded rod 203 to rotate, thereby driving one side of the fixed plate 204 to move downward, and the fixed plate 204 moves downward to drive the blowing pipe 9 on one side to extend into the mold cavity to blow the plastic bottle.

[0028] Step 2: After the blow molding of the plastic bottle is completed, the refrigerator 303 at the bottom works to generate cold air, and then the air pump 304 works to allow the cold air generated by the refrigerator 303 to enter the air pipe 302, and enter the connecting pipe 301 through the air pipe 302. After the cold air enters the connecting pipe 301, it enters the exhaust pipe 306 and is discharged into the cavity 401 through the exhaust nozzle 305, so that the cold air can quickly cool the plastic bottle.

[0029] Step 3: After the plastic bottle is cooled, the forward and reverse motor 2 501 reverses, thereby driving the two clamps of the mold 4 to move outward through the threaded rod 2 504. When the clamps move outward, the support block 7 drives the rack rail 1 605 on one side to move when opening. The rack rail 1 605 moves and drives the gear 1 606 on one side to rotate. The rotation of the gear 1 606 drives the gear 2 609 below to rotate. Since the gear 2 609 is meshed with the gear 3 610, the gear 3 610 is driven to rotate. The rotation of the gear 3 610 drives the gear 4 613 on one end to rotate through the guide rod 2 611. When the gear 4 613 rotates, it drives the upper The gear rail 2 614 moves inward, and the inward movement of the gear rail 2 614 drives the support plate 601 on one side to move inward. The inward movement of the support plate 601 will synchronously drive the fastener on one side and the cutter 1 602 and the cutter 2 622 at the upper and lower ends to move synchronously. When the fastening plate 619 fits against the plastic bottle body, the gear 4 613 drives the gear rail 2 614 to move continuously, so that the fastening plate 619 squeezes the return spring 624, causing the fastening plate 619 to move backward, and the cutter 1 602 and the cutter 2 622 at the two ends continue to move forward, so as to quickly cut off the excess waste on the top and bottom of the plastic bottle.

[0030] After finishing the plastic bottles, the operator takes them out.

[0031] Compared with the related art, the plastic bottle blow molding mold provided by the present invention has the following beneficial effects: 1. The present invention provides a plastic bottle blow molding mold. Through the setting of the cutting mechanism 6, after the plastic bottle is cooled, the forward and reverse motor 2 501 is reversed, thereby driving the two clamps of the mold 4 to move outward through the threaded rod 2 504. When the clamps move outward, the support block 7 drives the gear rail 1 605 on one side to move when opening. The gear rail 1 605 moves to drive the gear 1 606 on one side to rotate. The gear 1 606 rotates to drive the gear 2 609 below to rotate. Since the gear 2 609 is meshed with the gear 3 610, the gear 3 610 is driven to rotate. The gear 3 610 rotates and drives the gear 4 613 at one end to rotate through the guide rod 2 611. When the gear 4 613 rotates The gear rail 2 614 at the top moves inward, and the gear rail 2 614 moves inward to drive the support plate 601 at one side to move inward. The support plate 601 moves inward to synchronously drive the fastener at one side and the cutter 1 602 and the cutter 2 622 at the upper and lower ends to move synchronously. When the fastening plate 619 fits the plastic bottle body, the gear 4 613 drives the gear rail 2 614 to move continuously, so that the fastening plate 619 squeezes the return spring 624, so that the fastening plate 619 moves backward, and the cutter 1 602 and the cutter 2 622 at the two ends continue to move, and the excess waste on the top and bottom of the plastic bottle is quickly cut off, thereby improving the production efficiency of the plastic bottle. 2. The present invention provides a plastic bottle blow molding mold. Through the setting of the cutting mechanism 6, after the plastic bottle is cooled and formed, the cutter 1 602 and the cutter 2 622 automatically cut the excess part of the plastic bottle through mechanical movement. Therefore, compared with manual cutting, mechanized cutting has higher accuracy, thereby ensuring the integrity of the plastic bottle.

[0032] Second embodiment: Please refer to Figure 7-Figure 8The plastic bottle blow molding mold also includes a cooling member 3, which is arranged on the mold 4. The cooling member 3 includes an exhaust pipe 306. A cavity 401 is provided inside the mold 4, and an exhaust hole is provided at the bottom of the mold 4. The exhaust hole is connected to the cavity 401. The blown cold air will continuously flush the mold body, thereby quickly cooling the internal plastic bottle, and the exhaust hole can discharge the heat carried by the blown air from below. The exhaust pipe 306 is arranged at the top inside the cavity 401, and an exhaust nozzle 305 is fixedly installed at the bottom of the exhaust pipe 306. A connecting pipe 301 is fixedly installed at one end of the exhaust pipe 306, and an air supply pipe 302 is fixedly installed at the end of the connecting pipe 301. One end of the air supply pipe 302 is fixedly installed A refrigerator 303 is installed, and an air pump 304 is fixedly installed at one end of the refrigerator 303. Specifically, after the blow molding of the plastic bottle is completed, the refrigerator 303 located at the bottom works to generate cold air, and then the air pump 304 works to allow the cold air generated by the refrigerator 303 to enter the air pipe 302, and enter the connecting pipe 301 through the air pipe 302. After the cold air enters the connecting pipe 301, it enters the exhaust pipe 306 and is discharged into the cavity 401 through the exhaust nozzle 305, so that the cold air quickly cools the plastic bottle, thereby being able to quickly cool the blow-molded plastic bottle, accelerate the molding of the plastic bottle, and avoid deformation of the plastic bottle due to excessive temperature after blow molding.

[0033] Third embodiment:

[0034] This embodiment provides a plastic bottle blow molding process, comprising the following steps: Step 1: The mold 4 opens to both sides. When opening, the support block 7 drives the rack rail 1 605 on one side to move. The rack rail 1 605 moves to drive the gear 1 606 on one side to rotate. The gear 1 606 rotates to drive the gear 2 609 below to rotate. Since the gear 2 609 is meshed with the gear 3 610, the gear 3 610 is driven to rotate. The gear 3 610 rotates to drive the gear 4 613 at one end to rotate through the guide rod 2 611. When the gear 4 613 rotates, it drives the rack rail 2 614 above to move inward. Step 2: The second rack rail 614 moves inwards to drive the support plate 601 on one side to move inwards. The inward movement of the support plate 601 will synchronously drive the fastener on one side and the cutter 1 602 and the cutter 2 622 at the upper and lower ends to move synchronously.

[0035] Step 3: When the fastening plate 619 fits against the plastic bottle body, the gear 4 613 drives the rack 2 614 to move continuously, so that the fastening plate 619 squeezes the return spring 624, causing the fastening plate 619 to move backward, and the cutter 1 602 and the cutter 2 622 at both ends continue to move forward to quickly cut off the excess waste on the top and bottom of the plastic bottle.

[0036] The shaping process can realize automatic cutting and trimming of cooled plastic bottles, and the automation degree of plastic bottle production is high, which reduces the production process of plastic bottles and avoids the situation of manual trimming of plastic bottles.

[0037] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic bottle blow molding mold, comprising a fixing base (1), a mold (4) being arranged in the middle of the fixing base (1), characterized in that: Support blocks (7) are fixedly mounted on both sides of the mold (4), and cutting mechanisms (6) are provided on both sides of the mold (4); The cutting mechanism (6) comprises a rack rail (605), wherein there are two rack rails (605), which are respectively fixedly mounted on a support plate (601) below the mold (4), and a gear rail (606) is respectively arranged on one side of the two rack rails (605), and the gear rail (606) and the rack rail (605) are meshed with each other. A guide rod (608) is fixedly mounted below the gear rail (606), and a placement block (607) is arranged on the outer side of the guide rod (608), and the placement block (607) is fixedly mounted on a fixed seat (1). A gear rail (609) is fixedly mounted on the bottom of the guide rod (608), and a gear rail (610) is arranged on one side of the gear rail (609), and the gear rail (610) and the gear rail (609) are meshed with each other. A guide rod (611) is fixedly mounted on one side of the gear rail (610), and a placement block (607) is arranged on the outer side of the guide rod (611). The second placement block (612) is fixedly mounted on the fixed seat (1); a gear four (613) is fixedly mounted on one end of the guide rod (611); a rack rail (614) is arranged on the gear four (613); the rack rail (614) and the gear four (613) are meshed with each other; a support plate (601) is fixedly mounted on one side of the rack rail (614); a fastener is arranged in the middle of one side of the support plate (601); a mounting frame (603) and a mounting frame (621) are fixedly mounted on the upper and lower ends of the fastener on the support plate (601); a cutter (602) is fixedly mounted on one end of the mounting frame (603); a cutter (622) is fixedly mounted on one end of the mounting frame (621); the cutter (602) and the top of the mold cavity of the mold (4) are in the same plane; and the cutter (622) and the bottom of the mold cavity of the mold (4) are in the same plane.

2. The plastic bottle blow molding mold according to claim 1, characterized in that: A slide groove (615) is provided on the second rack rail (614), and a slider (616) is fixedly mounted on the bottom of one side of the fixed seat (1), and the slider (616) is slidably arranged inside the slide groove (615).

3. The plastic bottle blow molding mold according to claim 1, characterized in that: The fixing seat (1) is provided with a stabilizing hole (618), and a stabilizing rod (617) is fixedly mounted on one side of the support plate (601), and the stabilizing rod (617) is inserted into the inner side of the stabilizing hole (618).

4. The plastic bottle blow molding mold according to claim 1, characterized in that: The fastener comprises a stabilizing frame (604), wherein the stabilizing frame (604) is fixedly mounted on the support plate (601), and mounting holes (623) are provided on the stabilizing frame (604) and the support frame, and a plug-in rod (620) is provided inside the mounting hole (623), and a mounting plate (625) is fixedly mounted on the outside of the plug-in rod (620), and the mounting plate (625) is fitted with one side of the stabilizing frame (604), and a return spring (624) is provided on the outside of the plug-in rod (620), and two ends of the return spring (624) are respectively fixedly mounted on the mounting plate (625) and the support plate (601), and a fastening plate (619) is fixedly mounted on one end of the plug-in rod (620), and the fastening plate (619) and the cutter 1 (602) and the cutter 2 (622) are in the same plane.

5. The plastic bottle blow molding mold according to claim 1, characterized in that: Mounting plates (8) are fixedly mounted on both sides of the fixing seat (1), a traction member (5) is arranged on the mounting plate (8), and the mold (4) is arranged outside the traction member (5); The traction member (5) comprises a second threaded rod (504), there are two second threaded rods (504), the two second threaded rods (504) are arranged on the mounting plate (8) opposite to each other, one end of each of the second threaded rods (504) is fixedly mounted with a rotating wheel (505), the outer sides of the two rotating wheels (505) are provided with a belt (502), one end of one of the second threaded rods (504) is fixedly mounted with a second forward and reverse motor (501), the second forward and reverse motor (501) is fixedly mounted on the fixing seat (1), the support block (7) is arranged on the outer side of the second threaded rod (504), and the mold (4) is movably mounted on the outer side of the second threaded rod (504) through the support block (7).

6. The plastic bottle blow molding mold according to claim 5, characterized in that: A limiting rod (503) is fixedly mounted on the side of the mounting plate (8) opposite to the second threaded rod (504), and the mould (4) is slidably arranged on the outside of the limiting rod (503) via a supporting block (7).

7. The plastic bottle blow molding mold according to claim 1, characterized in that: An adjusting member (2) is arranged at one end of the fixing seat (1), the adjusting member (2) comprising a fixing frame (201), the fixing frame (201) being fixedly mounted on the fixing seat (1), a threaded rod (203) being rotatably arranged inside the fixing frame (201), a forward and reverse motor (202) being fixedly mounted at the bottom of the threaded rod, a fixing plate (204) being arranged outside the threaded rod (203), a blowing pipe (9) being fixedly mounted at one end of the fixing plate (204), the blowing pipe (9) being arranged above the mould (4).

8. The plastic bottle blow molding mold according to claim 7, characterized in that: Limiting blocks (206) are fixedly installed on both sides of the interior of the fixing frame (201), limiting grooves (205) are provided on both sides of the fixing plate (204), and the limiting blocks (206) are slidably arranged inside the limiting grooves (205).

9. The plastic bottle blow molding mold according to claim 1, characterized in that: The mold (4) is provided with a cooling member (3), the cooling member (3) comprising an exhaust pipe (306), a cavity (401) is opened inside the mold (4), the exhaust pipe (306) is arranged at the top inside the cavity (401), an exhaust nozzle (305) is fixedly installed at the bottom of the exhaust pipe (306), a connecting pipe (301) is fixedly installed at one end of the exhaust pipe (306), an air supply pipe (302) is fixedly installed at the end of the connecting pipe (301), a refrigerator (303) is fixedly installed at one end of the air supply pipe (302), and an air pump (304) is fixedly installed at one end of the refrigerator (303).

10. A blow molding process using the blow molding mold for a plastic bottle as claimed in claim 4, characterized in that: The following steps are involved: Step 1: The mold (4) is opened toward both sides. When opening, the support block (7) drives the rack rail 1 (605) on one side to move. The rack rail 1 (605) moves to drive the gear 1 (606) on one side to rotate. The rotation of the gear 1 (606) drives the lower gear 2 (609) to rotate. Since the gear 2 (609) is meshed with the gear 3 (610), the gear 3 (610) is driven to rotate. The rotation of the gear 3 (610) drives the gear 4 (613) at one end to rotate through the guide rod 2 (611). When the gear 4 (613) rotates, it drives the rack rail 2 (614) on the top to move inward. Step 2: The second rack rail (614) moves inwards to drive the support plate (601) on one side to move inwards. The inward movement of the support plate (601) will synchronously drive the fastener on one side and the cutter 1 (602) and the cutter 2 (622) at the upper and lower ends to move synchronously; Step 3: When the fastening plate (619) fits against the plastic bottle body, the gear 4 (613) drives the gear rail 2 (614) to move continuously, so that the fastening plate (619) squeezes the return spring (624), causing the fastening plate (619) to move backward, and the cutter 1 (602) and the cutter 2 (622) at both ends continue to move forward, quickly cutting off the excess waste at the top and bottom of the plastic bottle.

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