CN212124140U

CN212124140U - Efficient automatic vacuum blow molding machine

Info

Publication number: CN212124140U
Application number: CN201922163402.4U
Authority: CN
Inventors: 秦冠琴; 徐君达; 徐洋; 徐赟
Original assignee: Changzhou Xiaoyang Auto Parts Co ltd
Current assignee: Changzhou Xiaoyang Auto Parts Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-12-11
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a high-efficient automatic vacuum blowing machine, base, the structure of blowing and vacuum pump are installed to the bottom in the organism, the rotating electrical machines is installed to the organism bottom, the output of rotating electrical machines is connected with the rotation axis, the other end of rotation axis with the bottom central point of rotary disk puts and is connected, install three compound die structures of group on the rotary disk. The utility model adopts the multi-station operation, the extrusion device discharges materials continuously, when one die closing structure finishes die closing, the next following work can improve the production efficiency; the air entering the air compressor is heated through the heating rod, so that the parison can be in a high-temperature state when the blow molding machine performs blow molding on the parison, and the parison is convenient to deform; the vacuum pump can be with the air in the synthetic cavity of movable mould, quiet mould and closing plate take out, increase the inside and outside pressure differential of parison, and then make the parison can paste the inner wall of tight movable mould and quiet mould completely to the appearance of defective products has been reduced.

Description

Efficient automatic vacuum blow molding machine

Technical Field

The utility model relates to a high-efficient automatic vacuum blowing machine belongs to blowing machine technical field.

Background

Blow molding, also known as blow molding, is a rapidly developing plastic processing method. The thermoplastic resin is extruded or injection molded to obtain tubular plastic parison, which is hot or heated to soften, and then placed in a split mold, after the mold is closed, compressed air is introduced into the parison to blow the plastic parison to cling to the inner wall of the mold, and after cooling and demolding, various hollow products are obtained. There are both injection blow molding and extrusion blow molding. In the former, the raw material is first formed into molten parison by extruder or injection machine, then it is placed in mould, and blown by compressed air to make the parison tightly contact with mould wall, then cooled and demoulded to obtain hollow products, such as plastic bottle, barrel and ball, etc. The latter is to install blow mould at the front end of extruder, blow the extruded molten tube blank into mould tube by compressed air, after cooling, fold and roll into double-layer flat film, such as making plastic bag or film.

However, the existing blow molding device still has the following defects when in use:

1. most of the conventional blow molding machines are of a single-station structure, namely, one die head corresponds to one die closing structure and one set of blowing structure, and in the actual use process, the extrusion device can continue the next extrusion procedure only after the completion of the die closing structure and the blowing structure, so that the extrusion device cannot work continuously, and the utilization rate of the extrusion device is reduced.

2. The air blown out by the air compressor is normal temperature air when the existing blow molding device is used, the temperature of the air is far lower than the surface temperature of the parison, and then the parison can be rapidly cooled when the parison is subjected to blow molding processing, so that the parison is cooled and solidified when the parison does not reach a proper shape, and further the product error of production is increased.

In view of this drawback, an efficient automatic vacuum blow molding machine is proposed to solve the above mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model is designed to solve the problems mentioned in the background art, and adopts multi-station operation, the extrusion device continuously discharges materials, when a die assembly structure finishes die assembly, the next work is carried out, and the production efficiency and the utilization rate of the extrusion device can be improved; the air entering the air compressor is heated through the heating rod, so that the parison can be in a high-temperature state when the blow molding machine performs blow molding on the parison, and the parison is convenient to deform; the vacuum pump can pump out air in a cavity formed by the movable die, the static die and the sealing plate, so that the pressure difference between the inside and the outside of the parison is increased, and the parison can completely cling to the inner walls of the movable die and the static die, thereby reducing the occurrence of defective products and improving the processing precision; the overflow edge of the injection molding port can be treated by the rotary pipe.

The purpose of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a high-efficient automatic vacuum blow molding machine, includes the organism, the supporting seat is installed to the organism top, supporting seat bottom four corners department installs electric lift rod, electric lift rod with organism top fixed connection, the extruder is installed to the supporting seat top, install the feeding funnel on the extruder, extruder one end is connected with pipe forming die, base, the structure of blowing and vacuum pump are installed to the bottom in the organism, the rotating electrical machines is installed to the organism bottom, the output of rotating electrical machines is connected with the rotation axis, the other end of rotation axis with the bottom central point of rotary disk puts and is connected, install three compound die structures of group on the rotary disk, the compound die structure is located under the export of pipe forming die.

Preferably, the compound die structure includes movable mould and quiet mould, one side fixedly connected with fly leaf of movable mould, the central point of fly leaf one side puts the department and installs hydraulic telescoping rod, the first fixed plate of hydraulic telescoping rod's the other end fixedly connected with, the opposite side fixedly connected with second fixed plate of quiet mould, four spinal branch daggers are installed along the horizontal direction in first fixed plate opposite side four corners position department, the fly leaf passes through the sleeve pipe and is in slide on the four spinal branch daggers, the bottom of first fixed plate with the second fixed plate all with rotary disk swing joint, the constant head tank has been seted up in the four corners position department of movable mould one side, the movable mould with one side that the movable mould is relative install with constant head tank assorted reference column.

Preferably, the air blowing structure comprises an air compressor, a heating box and a sealing plate, the output end of the air compressor is connected with an air inlet pipe, the output end of the vacuum pump is connected with an air outlet pipe, the air inlet pipe and the other end of the air outlet pipe respectively penetrate through the sealing plate and extend to the lower portion of the sealing plate, and two handles are installed at the opposite corners of the top of the sealing plate.

Preferably, the heating rod is installed on the inner wall of one side of the heating box, the air outlet is formed in the upper portion of one side wall of the heating box, the air inlet is formed in the lower portion of the other side wall of the heating box, and the air compressor is connected with the air outlet of the heating box through a connecting pipe.

Preferably, the air inlet pipe and the outer circumference of the air outlet pipe are both provided with a rotating pipe, the inner wall of the rotating pipe is in sealing connection with the outer wall of the air inlet pipe, the rotating pipe can rotate relative to the air inlet pipe, a sealing strip is arranged at the joint of the rotating pipe and the sealing plate, the other end of the air inlet pipe is connected with a parison, and the parison is located in a cavity formed by the movable die and the static die.

Preferably, the length of the air outlet pipe extending below the sealing plate is less than the length of the air inlet pipe extending below the sealing plate.

The utility model has the advantages of: the utility model adopts the multi-station operation, the extrusion device discharges continuously, when one die closing structure finishes die closing, the next following work can improve the production efficiency and the utilization rate of the extrusion device; the air entering the air compressor is heated through the heating rod, so that the parison can be in a high-temperature state when the blow molding machine performs blow molding on the parison, and the parison is convenient to deform; the vacuum pump can pump out air in a cavity formed by the movable die, the static die and the sealing plate, so that the pressure difference between the inside and the outside of the parison is increased, and the parison can completely cling to the inner walls of the movable die and the static die, thereby reducing the occurrence of defective products and improving the processing precision; the overflow edge of the injection molding port can be treated by the rotary pipe.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic diagram of the sealing plate structure of the present invention;

FIG. 4 is a cross-sectional view of the rotary tube of the present invention;

fig. 5 is a sectional view of the mold clamping structure of the present invention.

In the figure: 1-machine body, 2-supporting seat, 3-electric lifting rod, 4-extruder, 5-feeding hopper, 6-tube blank forming die, 7-base, 8-rotating disk, 9-die assembly structure, 10-rotating shaft, 11-rotating motor, 12-air compressor, 13-heating box, 14-vacuum pump, 15-air outlet pipe, 16-air inlet pipe, 17-air outlet, 18-air inlet, 19-heating rod, 20-sealing plate, 21-handle, 22-rotating pipe, 23-sealing strip, 24-first fixing plate, 25-second fixing plate, 26-supporting column, 27-parison, 28-hydraulic telescopic rod, 29-moving die, 30-static die, 31-positioning column, 32-positioning grooves, 33-movable plates and 34-air blowing structures.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-5, the high-efficiency automatic vacuum blow molding machine provided by this embodiment includes a machine body 1, a supporting seat 2 is installed above the machine body 1, four corners of the bottom of the supporting seat 2 are installed with electric lifting rods 3, the electric lifting rods 3 are fixedly connected with the top of the machine body 1, an extruder 4 is installed above the supporting seat 2, a feeding hopper 5 is installed on the extruder 4, one end of the extruder 4 is connected with a tube blank forming mold 6, a base 76, a blowing structure 34 and a vacuum pump 14 are installed at the bottom of the machine body 1, a rotating motor 11 is installed at the bottom of the machine body 1, an output end of the rotating motor 11 is connected with a rotating shaft 10, the other end of the rotating shaft 10 is connected with the bottom center position of a rotating disk 8, three sets of mold closing structures 9 are installed on the rotating disk, pouring plastic materials into a feeding hopper 54, heating and melting the materials by an extruder 4, extruding the materials into a pipe blank forming mold 6, extruding the materials from the pipe blank forming mold 6 to form a parison 27, putting the parison 27 into a mold closing structure 9 for mold closing, starting a rotating motor 11, driving a rotating disc 8 to rotate by a rotating shaft 10, performing a mold closing program on a new mold closing structure 9, performing an air blowing program on the mold closing structure 9 which finishes the mold closing program, rotating the rotating disc 8 after the air blowing is finished, performing an air blowing program on the new mold closing structure 9, and performing a cooling and demolding program on the mold closing structure 9 which finishes the air blowing program, so that the production efficiency and the utilization rate of an extruding device are greatly improved.

In this embodiment, the mold clamping structure 9 includes a movable mold 29 and a stationary mold 30, a movable mold 33 is fixedly connected to one side of the movable mold 29, a hydraulic telescopic rod 28 is installed at a central position of one side of the movable mold 33, a first fixed plate 24 is fixedly connected to the other end of the hydraulic telescopic rod 28, a second fixed plate 25 is fixedly connected to the other side of the stationary mold 30, four support columns 26 are installed at four corners of the other side of the first fixed plate 24 along a horizontal direction, the movable mold 33 slides on the four support columns 26 through a sleeve, bottoms of the first fixed plate 24 and the second fixed plate 25 are movably connected to the rotating disk 8, positioning slots 32 are opened at the four corners of one side of the movable mold 29, positioning posts 31 matched with the positioning slots 32 are installed at a side of the movable mold 29 opposite to the movable mold 29, the hydraulic telescopic rod 28 is activated, the movable mold 29, the parison 27 is placed in a die cavity formed by combining the movable die 29 and the movable die 29, and the positioning column 31 on the movable die 29 is inserted into the positioning groove 32 on the fixed die 30, so that the accuracy of die assembly is effectively ensured.

In this embodiment, the structure 34 of blowing includes air compressor 12, heating cabinet 13 and closing plate 20, air compressor 12's output is connected with intake pipe 16, vacuum pump 14's output is connected with outlet duct 15, the other end of intake pipe 16 and outlet duct 15 runs through closing plate 20 respectively and extends to closing plate 20 below, two handles 21 are installed to the diagonal angle department at closing plate 20 top, intake pipe 16 and outlet duct 15 run through closing plate 20 and have guaranteed the leakproofness of cavity, the installation of handle 21 on the closing plate 20, take off closing plate 20 after the convenient procedure of blowing, and then blow the procedure to the next compound die structure 9 of accomplishing the compound die.

In this embodiment, a heating rod 19 is installed on an inner wall of one side of the heating box 13, an air outlet 17 is opened above one side wall of the heating box 13, an air inlet 18 is opened below the other side wall of the heating box 13, and the air compressor 12 is connected to the air outlet 17 of the heating box 13 through a connecting pipe.

In this embodiment, the outer circumferences of the air inlet pipe 16 and the air outlet pipe 15 are both provided with a rotating pipe 22, the inner wall of the rotating pipe 22 is hermetically connected with the outer wall of the air inlet pipe 16, the rotating pipe 22 can rotate relative to the air inlet pipe 16 and the air outlet pipe 15, a sealing strip 23 is arranged at the joint of the rotating pipe 22 and the sealing plate 20, the other end of the air inlet pipe 16 is connected with a parison 27, the parison 27 is located in a cavity formed by combining a movable mold 29 and a stationary mold 30, and the rotating pipe 22 is arranged to prevent an edge overflow from being generated on an.

In the present embodiment, the length of the outlet pipe 15 extending below the sealing plate 20 is less than the length of the inlet pipe 16 extending below the sealing plate 20.

The utility model discloses a theory of operation is: starting a driving device of an extruder 4, pouring a plastic material into a feeding hopper 54, heating and melting the material by the extruder 4, extruding the material into a tube blank forming mold 6, extruding the material from the tube blank forming mold 6 to form a parison 27, installing the parison 27 at one end of an air inlet 18, starting a hydraulic telescopic rod 28, horizontally moving a movable mold 29 fixed on a movable plate 33 on a support column 26 under the action of a sliding sleeve, placing the parison 27 in a mold cavity formed by the movable mold 29 and the movable mold 29, inserting a positioning column 31 on the movable mold 29 into a positioning groove 32 on a stationary mold 30, attaching a sealing plate 20 and a mold closing structure 9 for sealing after the mold closing procedure is finished, enabling the mold cavity to form a closed space, starting a rotating motor 11, driving a rotating disk 8 to rotate by a rotating shaft 10, carrying out the mold closing procedure by a new mold closing structure 9, and carrying out an air blowing procedure by the mold, the air in the heating box 13 is heated by the heating rod 19, the air compressor 12 conveys the hot air in the heating box 13 into the parison 27 which is clamped through the air inlet pipe 16 by the air outlet through the air outlet, the other end of the air outlet pipe 15 penetrates through the sealing plate 20 and extends into a cavity below the sealing plate 20, the vacuum pump 14 pumps the air in the cavity formed by the movable die 29, the static die 30 and the sealing plate 20 through the air outlet pipe 15, the pressure difference between the inside and the outside of the parison 27 is increased, the air remained in the cavity is prevented from obstructing the deformation of the parison 27, the deformation error of the parison 27 is reduced, the temperature of the air entering the parison 27 through the air inlet pipe 16 is higher, the cooling time of the parison 27 is slowed down, the parison 27 has sufficient time to deform, after the blowing is finished, the rotating disc 8 rotates, and the new clamping structure 9 performs a blowing procedure, the mold closing structure 9 which has completed the blowing procedure performs a cooling and demolding procedure, so that the cycle is realized, and the production efficiency and the utilization rate of the extrusion device are greatly improved.

Above, only the further embodiments of the present invention are shown, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient automatic vacuum blowing machine, includes organism (1), supporting seat (2) are installed to organism (1) top, electric lift pole (3) are installed to supporting seat (2) bottom four corners department, electric lift pole (3) with organism (1) top fixed connection, extruder (4) are installed to supporting seat (2) top, install feeding funnel (5) on extruder (4), extruder (4) one end is connected with pipe forming die (6), its characterized in that: base (7), blowing structure (34) and vacuum pump (14) are installed to the bottom in organism (1), rotating electrical machines (11) are installed to organism (1) bottom, the output of rotating electrical machines (11) is connected with rotation axis (10), the other end of rotation axis (10) is connected with rotary disk (8), just the bottom central point of rotary disk (8) put with the one end of rotation axis (10) links to each other, install three compound die structures (9) of group on rotary disk (8), compound die structure (9) are located under the export of pipe forming die (6).

2. A high efficiency automatic vacuum blow molding machine as claimed in claim 1 wherein: the die assembly structure (9) comprises a movable die (29) and a static die (30), a movable plate (33) is fixedly connected to one side of the movable die (29), a hydraulic telescopic rod (28) is installed at the center position of one side of the movable plate (33), a first fixing plate (24) is fixedly connected to the other end of the hydraulic telescopic rod (28), a second fixing plate (25) is fixedly connected to the other side of the static die (30), four supporting columns (26) are installed at the position of four corners of the other side of the first fixing plate (24) in the horizontal direction, the movable plate (33) slides on the four supporting columns (26) through a sleeve, the bottoms of the first fixing plate (24) and the second fixing plate (25) are both movably connected with the rotating disk (8), positioning grooves (32) are formed at the positions of four corners of one side of the movable die (29), and the fixed die (29) are installed at one side of the movable die (29) opposite to be matched with A bit column (31).

3. A high efficiency automatic vacuum blow molding machine as claimed in claim 2 wherein: the blowing structure (34) comprises an air compressor (12), a heating box (13) and a sealing plate (20), an air inlet pipe (16) is connected to the output end of the air compressor (12), an air outlet pipe (15) is connected to the output end of the vacuum pump (14), the air inlet pipe (16) and the other end of the air outlet pipe (15) penetrate through the sealing plate (20) and extend to the lower portion of the sealing plate (20), and two handles (21) are installed at the opposite corners of the top of the sealing plate (20).

4. A high efficiency automatic vacuum blow molding machine as claimed in claim 3 wherein: install heating rod (19) on heating cabinet (13) one side inner wall, gas outlet (17) have been seted up to heating cabinet (13) one side wall top, air inlet (18) have been seted up to the below of another lateral wall of heating cabinet (13), air compressor (12) through the connecting pipe with gas outlet (17) of heating cabinet (13) link to each other.

5. A high efficiency automatic vacuum blow molding machine as claimed in claim 3 wherein: the air inlet pipe (16) and all install on the outer circumference of outlet duct (15) rotatory pipe (22), the inner wall of rotatory pipe (22) with sealing connection between the outer wall of inlet duct (16), rotatory pipe (22) can be relative inlet duct (16) is rotatory, rotatory pipe (22) with closing plate (20) linking department is equipped with sealing strip (23), the other end of inlet duct (16) is connected with parison (27), parison (27) are located movable mould (29) with the synthetic die cavity of static mould (30).

6. A high efficiency automatic vacuum blow molding machine as claimed in claim 4 wherein: the length of the air outlet pipe (15) extending to the lower part of the sealing plate (20) is less than the length of the air inlet pipe (16) extending to the lower part of the sealing plate (20).