CN217574015U

CN217574015U - Blow molding mechanism with self-locking function in one-step injection, drawing and blowing integrated molding machine

Info

Publication number: CN217574015U
Application number: CN202221676946.6U
Authority: CN
Inventors: 闫本刚; 张剑峰
Original assignee: Zhangjiagang Chuang Rong Plastic Machinery Co ltd
Current assignee: Zhangjiagang Chuang Rong Plastic Machinery Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-10-14
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a blow molding mechanism that has self-locking function among one-step method notes draw-blow integrated into one piece machine, include: the die carrier is provided with a base plate, a rotating table plate and a core injection plate, the left side and the right side of the rotating table plate are respectively provided with a die carrier seat, a guide rod is respectively arranged in the two die carrier seats, the two guide rods are connected with a fixed plate, a sliding plate is arranged between the two guide rods in a sliding manner, the left side and the right side of the sliding plate are respectively provided with a support plate, the core injection plate is connected between the two support plates, a limiting hole is formed in the support plate, a limiting shaft is arranged in the die carrier seats in a sliding manner, a second lifting cylinder is arranged on the sliding plate, a piston rod of the second lifting cylinder is connected with a stretching plate, and an auxiliary stretching mechanism is arranged on the stretching plate. After the limiting shaft is inserted into the limiting hole, the supporting plate can be limited, the core injection plate cannot be pushed upwards by the recoil force generated by high-pressure gas, and the core injection plate and the neck mold can obtain better sealing performance, so that the blow molding quality is ensured.

Description

Blow molding mechanism with self-locking function in one-step injection, drawing and blowing integrated molding machine

Technical Field

The utility model relates to an annotate and draw and blow the make-up machine, especially relate to one-step method annotate to draw and blow the blow molding machine that has self-locking function in the make-up machine.

Background

When producing the bottle-shaped product of PC, PET, PETG, PP, PPSU, PETE, TRITAN, PMMA material, in order to improve production efficiency and machining precision, most enterprises will select the quadruplex position blow molding machine, quadruplex position blow molding machine includes: the mold frame is provided with a base plate, bottle blank forming stations, bottle blank heating stations, blow molding stations and material taking stations are uniformly distributed on the base plate along the circumference, a rotating table plate is arranged on the base plate in an up-and-down sliding mode, a mold closing oil cylinder capable of driving the rotating table plate to slide up and down is arranged on the base plate, bottle blank forming mechanisms, bottle blank heating mechanisms, blow molding mechanisms and demolding mechanisms are uniformly distributed on the rotating table plate along the circumference, a rotating table is arranged in the rotating table plate in a rotating mode, four groups of mouth mold assemblies are uniformly distributed on the rotating table plate along the circumference, a locking mold frame is connected onto the rotating table plate, two guide columns are arranged on the locking mold frame downwards, the two guide columns are arranged on the base plate in a downward sliding mode and are connected with the lower locking mold frame, a mold locking oil cylinder is arranged at the bottom of the base plate, and the mold locking oil cylinder is connected with the lower locking mold frame. When the rotary table works, four groups of die assemblies are respectively aligned with four stations in the base plate one by one after the rotary table rotates, then the four die assemblies are driven by the die assembly oil cylinder to respectively carry out die assembly with the four stations, the rotary table plate and the base plate are locked by the die locking force between the die locking oil cylinder, the upper die locking frame and the lower die locking frame, and then corresponding actions are carried out through mechanisms on the rotary table plate, such as: after the mouth mold assembly and the bottle body mold in the blow molding station are assembled, an injection core in the blow molding mechanism extends into the mouth mold and is sealed with the mouth mold, then the mold blank is blown, meanwhile, a stretching rod in the blow molding mechanism penetrates through the injection core and pushes the mold blank downwards, and the mold blank is stretched and expanded under the blowing and pushing actions until the mold blank is attached to the mold cavity wall of the bottle body mold to form a complete bottle. However, when the injection core blows air to the die blank, the high-pressure air blown out by the injection core can form an upward recoil force to the injection core, so that the situation that the injection core and the injection core plate move upwards to cause air leakage between the injection core and the die easily occurs, and the situation that the product is unqualified due to incomplete blow molding easily occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a one-step method is annotated and is drawn blow the blow molding mechanism that has self-locking function among the integrated into one piece machine, it can prevent to take place to annotate the core and annotate the condition that the core board shifts up because of high-pressure gas recoil effect at the blowing in-process.

In order to achieve the above object, the utility model adopts the following technical scheme: blow molding mechanism who has self-locking function among one-step method notes draw blowing integrated into one piece machine includes: the die set is provided with a base plate, a rotating table plate is arranged on the base plate in an up-and-down sliding mode, a core injection plate capable of being connected with a core is arranged on the rotating table plate in an up-and-down sliding mode, a die set seat is arranged on each of the left side and the right side of the rotating table plate, a guide rod is vertically arranged in each of the two die set seats, the two guide rods are connected with a fixed plate, a first lifting cylinder is vertically arranged on each of the left side and the right side of the fixed plate, piston rods of the two first lifting cylinders extend downwards out of the fixed plate, a sliding plate is arranged between the two guide rods in a sliding mode, the sliding plate is connected with piston rods of the two first lifting cylinders in a sliding mode, a support plate is arranged on each of the left side and the right side of the sliding plate in a downward mode, a limiting hole penetrating through the left side and the right side wall of the support plate is formed in the die set seat, a limiting shaft is arranged in the sliding mode, the limiting shaft is connected with the piston rods on the push-pull cylinders, a second lifting cylinder is vertically arranged in the center of the sliding plate, a avoiding hole is formed in an upward penetrating mode, and a stretching mechanism is arranged on the left side and right side of the piston rods of the second lifting cylinder.

Further, the blow molding mechanism with the self-locking function in the one-step injection, drawing and blowing integrated molding machine is characterized in that a copper sleeve is sleeved in the limiting hole, an elliptical conical hole is formed in the copper sleeve, a conical head is arranged at the end of the limiting shaft, after the conical head on the limiting shaft is inserted into the elliptical conical hole, the bottom wall of the conical head abuts against the inner bottom wall of the elliptical conical hole, and a gap is reserved between the top wall of the conical head and the inner top wall of the elliptical conical hole.

Further, the blow molding mechanism with a self-locking function in the one-step injection stretch blow molding machine, wherein the auxiliary stretching mechanism comprises: t type pole, T type pipe, pressure spring, T type pipe pass through the bolt and link to each other with the stretch board, are provided with the pressure spring in T type pipe, and T type pole slides and sets up in T type pipe, is connected with the slider in the bottom of T type pole, and the slider supports and leans on the pressure spring, and threaded connection has the gland on the mouth of pipe of T type pipe, and T type pole activity is upwards continuous with the sliding plate after passing the gland.

Furthermore, the blow molding mechanism with the self-locking function in the one-step injection, drawing and blowing integrated molding machine is characterized in that the limiting shaft is in threaded connection with a piston rod of the push-pull cylinder, the piston rod of the push-pull cylinder is in threaded connection with a lock nut, and the lock nut abuts against the limiting shaft.

Furthermore, the one-step injection, drawing and blowing integrated molding machine is provided with a blow molding mechanism with a self-locking function, wherein a limiting rod is upwards arranged on the top wall of the mold frame seat.

Further, the one-step injection, drawing and blowing integrated molding machine is provided with a blow molding mechanism with a self-locking function, wherein a rubber cushion pad is arranged at the top of the limiting rod.

Further, the blow molding mechanism with the self-locking function in the one-step injection, drawing and blowing integrated molding machine, wherein the connecting structure between the injection core plate and the support plate is as follows: the supporting plate is provided with a connecting groove penetrating through the front side wall and the rear side wall of the supporting plate, a reinforcing rib is vertically arranged in the connecting groove, a clamping seat is arranged at the bottom of the supporting plate, a plurality of connecting bolts are arranged on the bottom wall of the connecting groove in a penetrating mode, the connecting bolts are downwards in threaded connection with the clamping seat, a clamping groove is formed in the clamping seat, clamping grooves in the two clamping seats are oppositely arranged, an injection core plate is clamped between the two clamping grooves, and the injection core plate is connected with the clamping seat through bolts.

Furthermore, in the blow molding mechanism with a self-locking function in the one-step injection, stretch and blow integrated molding machine, a guide sleeve is respectively arranged on the left side and the right side of the sliding plate, and the two guide sleeves on the sliding plate are respectively sleeved on the two guide rods in a sliding manner.

The utility model has the advantages that: 1. when the first lifting cylinder drives the sliding plate to drive the two support plates and the core injection plate to downwards close the die together with the die in the rotating table plate, the limiting holes in the support plates are aligned with the limiting shafts on the same side, the push-pull cylinder drives the limiting shafts to be inserted into the limiting holes to limit the support plates, and when the core injection on the core injection plate is subjected to high-pressure injection, the core injection plate and the core injection plate cannot be upwards pushed by recoil force generated by high-pressure gas, so that the better sealing performance between the core injection plate and the die can be obtained, and the blowing quality is ensured; 2. set up the copper sheathing that has oval taper hole in spacing hole, tip at spacing axle is provided with the circular cone head, after the circular cone head on spacing axle inserted oval taper hole, the diapire of circular cone head supports and leans on the interior diapire in oval taper hole, leave the clearance between the roof of circular cone head and the interior roof in oval taper hole, circular cone head and oval taper hole cooperate the back and can play better limiting displacement, can make things convenient for the plug of spacing axle again, leave the condition that the clearance just does not exist because of sealed pressure actuation appears between the contact surface between circular cone head and the oval taper hole, spacing axle can be followed oval taper hole and pulled out fast under the pulling force effect that receives thrust cylinder, can effectively prevent to appear the delayed condition of response because of spacing axle is not in time pulled out.

Drawings

Fig. 1 is a schematic structural diagram of a blow molding mechanism with a self-locking function in the one-step injection, stretch and blow molding machine of the present invention.

Fig. 2 isbase:Sub>A schematic sectional view in the direction ofbase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is a schematic sectional view in the direction B-B in fig. 2.

Fig. 4 is a schematic view showing a part of the structure in the direction C in fig. 3.

Fig. 5 is an enlarged view of a portion of the structure in the direction D of fig. 2.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the blow molding mechanism with self-locking function in the one-step injection stretch blow molding machine of the present invention includes: the die carrier 1 is provided with a base plate 11 on the die carrier 1, a rotating table plate 12 is arranged on the base plate 11 in an up-down sliding manner, a core injection plate 13 capable of being connected with a core injection is arranged on the rotating table plate 12 in an up-down sliding manner, a die carrier seat 14 is respectively arranged on the left side and the right side of the rotating table plate 12, a guide rod 15 is respectively vertically arranged in each of the two die carrier seats 14, the two guide rods 15 are connected with a fixed plate 2, a first lifting cylinder 21 is respectively vertically arranged on the left side and the right side of the fixed plate 2, piston rods of the two first lifting cylinders 21 extend downwards out of the fixed plate 2, a sliding plate 22 is arranged between the two guide rods 15 in a sliding manner, the sliding plate 22 is connected with the piston rods of the two first lifting cylinders 21, a guide sleeve 23 is respectively arranged on the left side and the right side of the sliding plate 22, and the two guide sleeves 23 on the sliding plate 22 are respectively sleeved on the two guide rods 15 in a sliding manner. The left side and the right side of the sliding plate 22 are respectively provided with a support plate 3 downwards, a core injection plate 13 is connected between the two support plates 3, the support plates 3 are provided with limiting holes penetrating through the left side wall and the right side wall of the support plates 3, copper sleeves 31 are sleeved in the limiting holes, elliptical conical holes 32 are arranged in the copper sleeves 31, through holes penetrating through the left side wall and the right side wall of a die frame seat 14 are arranged in the die frame seat 14, limiting shafts 4 are arranged in the through holes in a sliding mode, conical heads 41 are arranged at the end portions of the limiting shafts 4, the limiting shafts 4 are connected with piston rods of push-pull air cylinders 42 through threads, locking nuts 43 are connected to the piston rods of the push-pull air cylinders 42 through threads, the locking nuts 43 abut against the limiting shafts 4, the push-pull air cylinders 42 are fixed on the die frame seat 14, after the conical heads 41 on the limiting shafts 4 are driven by the push-pull air cylinders 42 to be inserted into the elliptical conical holes 32, the bottom walls of the conical heads 41 abut against the inner bottom walls of the elliptical conical holes 32, and gaps are reserved between the top walls of the elliptical conical heads 41 and the inner walls of the tapered holes 32. The conical head 41 can play a better limiting role after being matched with the elliptical conical hole 32, the plugging and unplugging of the limiting shaft 4 can be facilitated, a gap is reserved between contact surfaces between the conical head 41 and the elliptical conical hole 32, the situation of pressure suction caused by sealing does not exist, the limiting shaft 4 can be quickly pulled out from the elliptical conical hole 32 under the action of the pulling force of the thrust cylinder 42, and the situation of response delay caused by untimely pulling out of the limiting shaft 4 can be effectively prevented.

The vertical second lift cylinder 5 that is provided with on the central point that is located sliding plate 22 puts, is provided with on fixed plate 2 and dodges the hole, and second lift cylinder 5 upwards passes and dodges the hole, and the piston rod of second lift cylinder 5 stretches out downwards in sliding plate 22, is connected with the stretching plate 51 that can set up the tensile pole on the piston rod of second lift cylinder 5, is provided with an auxiliary stretching mechanism respectively in the left and right sides of stretching plate 51, auxiliary stretching mechanism includes: the T-shaped pipe 6, the T-shaped pipe 61, the pressure spring 62, the T-shaped pipe 61 are connected with the stretching plate 51 through bolts, the pressure spring 62 is arranged in the T-shaped pipe 61, the T-shaped pipe 6 is arranged in the T-shaped pipe 61 in a sliding mode, the bottom of the T-shaped pipe 6 is connected with the sliding block 63, the sliding block 63 abuts against the pressure spring 62, a pressing cover 64 is connected to the pipe opening of the T-shaped pipe 61 in a threaded mode, and the T-shaped pipe 6 penetrates through the pressing cover 64 in a movable mode and then is connected with the sliding plate 22 upwards. When the second lifting cylinder 5 drives the stretching plate 51 to move downwards, the compressed compression spring 62 applies downward elastic force to the left end and the right end of the stretching plate 51, so that the left end and the right end of the stretching plate 51 are subjected to the same elastic force to run stably, and the stretching rod arranged on the stretching plate 51 can run stably; when the second lifting cylinder 5 drives the stretching plate 51 to move upwards, the T-shaped rod 6 compresses the pressure spring 62, so that the stretching plate 51 can be prevented from excessively moving upwards, and a damping effect can be achieved.

In this embodiment, a stopper 141 is provided upward on the top wall of the mold frame base 14, and a rubber cushion 142 is provided on the top of the stopper 141. The limiting rod 141 is arranged to prevent the sliding plate 22 from excessively moving downwards to cause the injection core plate 13 to collide with a die in the rotating table plate 12, and the rubber buffer cushion 142 arranged on the limiting rod 141 can prevent the limiting rod 141 from damaging the sliding plate 22.

In this embodiment, the connection structure between the core injection plate 13 and the support plate 3 is as follows: be provided with the spread groove 33 that runs through extension board 3 front and back lateral wall on the extension board 3 that is located spacing hole below, vertically in spread groove 33 be provided with strengthening rib 34, be provided with joint seat 35 in the bottom of extension board 3, wear to be equipped with a plurality of connecting bolt on the diapire of spread groove 33, connecting bolt downwards with joint seat 35 threaded connection, be provided with draw-in groove 36 on joint seat 35, draw-in groove 36 opposite direction in two joint seats 35 sets up, the card is equipped with notes core board 13 between two draw-in grooves 36, notes core board 13 and joint seat 35 bolted connection. The injection core plate 13 is connected with the support plate 3 through the clamping seat 35, so that subsequent maintenance and replacement work is facilitated.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the claims of the invention.

Claims

1. Blow molding mechanism who has self-locking function among one-step method notes draw blowing integrated into one piece machine includes: the die carrier is provided with the base plate on the die carrier, and the slip is provided with the revolving stage board from top to bottom on the base plate, and the slip is provided with the notes core board that can connect notes core, its characterized in that from top to bottom on the revolving stage board: the left side and the right side of the turntable plate are respectively provided with a die frame seat, a guide rod is respectively vertically arranged in the two die frame seats, the two guide rods are connected with the fixed plate, the left side and the right side of the fixed plate are respectively vertically provided with a first lifting cylinder, piston rods of the two first lifting cylinders downwards extend out of the fixed plate, a sliding plate is arranged between the two guide rods in a sliding manner, the sliding plate is connected with the piston rods of the two first lifting cylinders, the left side and the right side of the sliding plate are respectively downwards provided with a support plate, a core injection plate is connected between the two support plates, the support plates are provided with limiting holes penetrating through the left side wall and the right side wall of the support plates, the die frame seat is internally provided with a through hole penetrating through the left side wall and the right side wall of the die frame seat, a limiting shaft is arranged in the through hole in a sliding mode, the limiting shaft is connected with a piston rod on a push-pull cylinder, the push-pull cylinder is fixed on the die frame seat, a second lifting cylinder is vertically arranged on the central position of a sliding plate, an avoiding hole is formed in a fixed plate, the second lifting cylinder upwards penetrates through the avoiding hole, a piston rod of the second lifting cylinder downwards extends out of the sliding plate, a stretching plate capable of setting a stretching rod is connected onto the piston rod of the second lifting cylinder, and the left side and the right side of the stretching plate are respectively provided with an auxiliary stretching mechanism.

2. The one-step method injection, stretch and blow molding integrated forming machine with the blow molding mechanism having the self-locking function according to claim 1 is characterized in that: the copper bush is sleeved in the limiting hole, the oval conical hole is formed in the copper bush, the conical head is arranged at the end of the limiting shaft, after the conical head on the limiting shaft is inserted into the oval conical hole, the bottom wall of the conical head abuts against the inner bottom wall of the oval conical hole, and a gap is reserved between the top wall of the conical head and the inner top wall of the oval conical hole.

3. The one-step injection stretch blow molding machine blow molding mechanism with a self-locking function according to claim 1 or 2, characterized in that: the auxiliary stretching mechanism includes: t type pole, T type pipe, pressure spring, T type pipe pass through the bolt and link to each other with the drawing board, are provided with the pressure spring in T type pipe, and T type pole slides and sets up in T type pipe, is connected with the slider in the bottom of T type pole, and the slider supports and leans on the pressure spring, and threaded connection has the gland on the mouth of pipe of T type pipe, and the activity of T type pole is upwards continuous with the sliding plate after passing the gland.

4. The one-step injection stretch blow molding machine with the blow molding mechanism having the self-locking function according to claim 1 or 2, wherein the blow molding mechanism comprises: the limiting shaft is connected with a piston rod of the push-pull air cylinder through threads, a locking nut is connected to the piston rod of the push-pull air cylinder through threads, and the locking nut abuts against the limiting shaft.

5. The one-step injection stretch blow molding machine blow molding mechanism with a self-locking function according to claim 1, characterized in that: and a limiting rod is upwards arranged on the top wall of the die carrier seat.

6. The one-step injection stretch blow molding machine blow molding mechanism with a self-locking function according to claim 5, wherein: and a rubber buffer pad is arranged at the top of the limiting rod.

7. The one-step injection stretch blow molding machine blow molding mechanism with a self-locking function according to claim 1, characterized in that: the connecting structure between the injection core plate and the support plate is as follows: the supporting plate is provided with a connecting groove penetrating through the front side wall and the rear side wall of the supporting plate, a reinforcing rib is vertically arranged in the connecting groove, a clamping seat is arranged at the bottom of the supporting plate, a plurality of connecting bolts are arranged on the bottom wall of the connecting groove in a penetrating mode, the connecting bolts are downwards in threaded connection with the clamping seat, a clamping groove is formed in the clamping seat, clamping grooves in the two clamping seats are oppositely arranged, an injection core plate is clamped between the two clamping grooves, and the injection core plate is connected with the clamping seat through bolts.

8. The one-step injection stretch blow molding machine blow molding mechanism with a self-locking function according to claim 1, characterized in that: the left side and the right side of the sliding plate are respectively provided with a guide sleeve, and the two guide sleeves on the sliding plate are respectively sleeved on the two guide rods in a sliding manner.