CN115847774B - One-step injection molding device and process for food-grade PE container for packaging health care products - Google Patents

Abstract

The invention discloses a one-step injection molding device and a one-step injection molding process for a food-grade PE container for packaging health-care products, and belongs to the field of health-care product packaging container molding. The food-grade PE container one-step injection molding device for packaging the health care products comprises a device box with a discharge hole at the bottom, and further comprises two symmetrically arranged first telescopic devices which are respectively and fixedly connected with the inner walls of the two sides of the device box, wherein the inner walls of the two sides of the device box are also fixedly connected with two symmetrically arranged second telescopic devices, and the telescopic ends of the two first telescopic devices are respectively and fixedly connected with two bottle body molds which are mutually symmetrical; the injection molding and blow molding processes of the health product container are greatly shortened, so that the heat loss speed of the blank is reduced, and more heating temperature is not required to be provided during blow molding, thereby improving the processing efficiency of the health product container and reducing the electric energy consumption during the electric heating of the blank.

Description

One-step injection molding device and process for food-grade PE container for packaging health care products

Technical Field

The invention relates to the technical field of health product packaging container forming, in particular to a one-step injection molding device and a one-step injection molding process of a food-grade PE container for packaging health products.

Background

The health care product is food with specific health care function, and the health care product is contained in a plastic packaging container. At present, the main stream material adopted by the plastic packaging container is polyethylene, because Polyethylene (PE) is nontoxic, and the health care product packaging container made of polyethylene has good moisture resistance and solvent resistance, and is not influenced by strong acid and strong alkali.

When the packaging container for health-care products is produced, firstly, a blank in a shape of a beaker needs to be produced through injection molding equipment, then, the tail part of ingredients is blown up through blow molding equipment, so that the health-care product container with a thick bottle body and a small bottle mouth is obtained.

Disclosure of Invention

The invention aims to solve the problem of low production efficiency of a health product container in the prior art, and provides a one-step injection molding device and a one-step injection molding process of a food-grade PE container for packaging health products.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the food-grade PE container one-step injection molding device for packaging the health care products comprises a device box with a discharge hole at the bottom, and further comprises two symmetrically arranged first telescopic devices which are respectively and fixedly connected with the inner walls of the two sides of the device box, wherein the inner walls of the two sides of the device box are also fixedly connected with two symmetrically arranged second telescopic devices, the telescopic ends of the two first telescopic devices are fixedly connected with two bottle body moulds which are mutually symmetrical, the telescopic ends of the two second telescopic devices are fixedly connected with two bottle mouth moulds which are mutually symmetrical, the inner diameters of the bottle body moulds and the bottle mouth moulds are the same, and the outer wall of the device box is provided with sliding grooves matched with the two bottle mouth moulds; the two symmetrically arranged blow molding dies are arranged in the device box and are respectively positioned at two sides of the discharge hole, wherein the shaft ends of the two blow molding dies are respectively provided with a concave hole matched with the outer wall of the bottle mouth die, and an automatic translation assembly for driving the two blow molding dies to horizontally move is arranged in the device box; the bottle comprises two semicircular openings which are symmetrically arranged, and the two semicircular openings are respectively arranged on opposite surfaces of the bottle mouth die, wherein two cylindrical dies which extend into the bottle body die are inserted into the semicircular openings, a beaker-shaped injection cavity is formed between the cylindrical dies and the inner walls of the bottle mouth die and the bottle body die, and an injection molding pipe and a blow molding pipe are arranged on the cylindrical dies.

In order to drive the blow molding die to automatically buckle on two bottleneck dies, preferably, the automatic translation subassembly is including rotating two first threaded rods of connecting device incasement wall, two first threaded rods are parallel with the axis of cylindricality mould, two all be connected with on the first threaded rod with device incasement wall sliding connection's slide, wherein, two the opposite face of slide all is connected with the push rod through elastic telescoping mechanism, two blow molding die respectively fixed connection is on two push rods.

In order to automatically drive the first threaded rod to rotate, further, driven gears are fixedly installed on the outer walls of the two first threaded rods, and racks matched with the two driven gears are fixedly connected to the two bottle body molds respectively.

In order to drive two blow molding dies to get close to each other, further, elastic telescoping mechanism is including setting up the slide hole of slide lateral wall, push rod sliding connection is downthehole in the slide, through reset spring elastic connection between the inner wall of push rod and slide hole, wherein, the inner wall fixedly connected with of device case is located cylindricality mould both sides direction riser, two the equal fixedly connected with of end of direction riser respectively with the direction swash plate that two blow molding dies outer walls offset.

In order to drive the cylindrical mold to separate from the bottle body mold, further, one end of each of the two first threaded rods is fixedly connected with a second threaded rod, the outer walls of the two second threaded rods are in threaded connection with a sliding rod, and the cylindrical mold is fixedly connected with the sliding rod.

In order to improve the efficiency of the blow mold in discharging products, further, two spray pipes are fixedly installed in the inner walls of the blow mold, and two groups of spray pipes are provided with blow holes extending into the blow mold.

In order to enable the blow molding die to vibrate and easily discharge, further, the side walls of the two guide inclined plates are fixedly connected with a plurality of cambered surface convex blocks which are linearly distributed, and when the blow molding die slides on the guide inclined plates, the blow molding die can be sequentially contacted with the cambered surface convex blocks.

In order to ensure that the spray pipe does not need an external air pump, further, the outer wall of the push rod is fixedly provided with a piston which is in sliding connection with the sliding hole, the outer wall of the sliding plate is fixedly connected with an air suction pipe and an air exhaust pipe which are communicated with the sliding hole, and the tail end of the air exhaust pipe is fixedly connected and communicated with the spray pipe through a connecting pipe.

In order to make the degree of automation higher, preferably, the telescopic end of second telescopic device is fixed with the tension sensor, when bottleneck mould receives axial pulling force, the tension sensor gives the controller with signal transmission and starts the second telescopic device through the controller.

A shaping process of food-grade PE container for packaging health products comprises the following operation steps:

step 1: injecting raw materials into an injection cavity through an injection pipe, wherein the raw materials form beaker-shaped blanks in the injection cavity;

step 2: driving the two bottle body molds to separate from the two sides of the blank through first telescopic equipment;

step 3: two mutually closed blow molding dies are buckled at the lower ends of the two bottleneck dies;

step 4: blowing the blank through the blow molding pipe, wherein the tail part of the blank expands to finish the forming work of the blank;

step 5: and the two first telescopic devices drive the two bottle body moulds to be close to each other, and the processed container can slide down towards the discharge port.

Compared with the prior art, the invention provides a food-grade PE container one-step injection molding device for packaging health products, which has the following beneficial effects:

1. according to the food-grade PE container one-step injection molding device for packaging the health care products, raw materials are injected into an injection cavity through an injection molding pipe, then two bottle body molds are driven to separate from two sides of a blank through first telescopic equipment, the blank is blown through a blow molding pipe, and then the blank molding work can be completed;

2. according to the food-grade PE container one-step injection molding device for packaging the health care products, the first telescopic equipment drives the two bottle body molds to be close to each other, the two first threaded rods are reversed, the two push rods drive the two blow molding molds to be far away from each other for resetting, and as the outer wall of the container and the inner wall of the blow molding molds are cylindrical, the processed container slides down towards the discharge port, so that automatic discharging of the container can be completed, and the degree of automation is greatly improved;

3. according to the food-grade PE container one-step injection molding device for packaging the health-care products, when two push rods drive two blow molding dies to be away from each other, the sliding holes convey air in the spray pipe through the exhaust pipe, and finally the air is blown into the blow molding dies from the blow holes, so that the containers clamped in the blow molding dies can be blown off, and the blanking efficiency is improved;

4. according to the food-grade PE container one-step injection molding device for packaging the health care products, during the period that the two blow molding molds are far away from each other, the outer walls of the blow molding molds slide across the two guide inclined plates, the cambered surface convex blocks on the two guide inclined plates vibrate the two blow molding molds, and the vibrating blow molding molds can loosen the containers in the blow molding molds, so that the blanking efficiency is further improved;

5. this food level PE container one-step method injection molding device for health products packing drives two second threaded rods through two first threaded rods and rotates, and two second threaded rods then can drive the slide bar and keep away from the device case, and the slide bar then can drive the cylindricality mould and pull out in two body moulds to when making the blowing pipe blow, gas can more even enter into in the blank, and not be located the interior bottom of blank.

Drawings

Fig. 1 is a schematic view of a first view angle axis cross-section structure of a one-step injection molding device of a food-grade PE container for packaging health products;

fig. 2 is a schematic diagram of a second view angle axis measurement structure of the one-step injection molding device of the food-grade PE container for packaging health products provided by the invention;

FIG. 3 is a schematic top sectional view of a one-step injection molding device for a food PE container for packaging health products according to the present invention;

FIG. 4 is a schematic diagram showing the structure of a blow molding state of a one-step injection molding device for a food PE container for packaging health products;

FIG. 5 is an enlarged view of part A in FIG. 3 of the food-grade PE container one-step injection molding device for packaging health products according to the present invention;

FIG. 6 is an enlarged view of part B in FIG. 3 of the food-grade PE container one-step injection molding apparatus for packaging health products according to the present invention;

fig. 7 is a schematic diagram of a blow mold cut-away structure of a one-step injection molding device for a food-grade PE container for packaging health products according to the present invention.

In the figure: 1. an apparatus box; 2. a discharge port; 3. a first telescopic device; 4. a bottle body mold; 5. a second telescopic device; 6. a bottle mouth mold; 7. a chute; 8. a cylindrical mold; 9. a semicircular opening; 10. blow molding the tube; 11. injection molding a tube; 12. a first threaded rod; 13. a slide plate; 14. a rack; 15. a driven gear; 16. a blow molding die; 17. a guide riser; 18. a guide sloping plate; 19. a slide hole; 20. a push rod; 21. a return spring; 22. a piston; 23. an exhaust pipe; 24. an air suction pipe; 25. a spray pipe; 26. a blow hole; 27. concave holes; 28. a second threaded rod; 29. a slide bar; 30. a cambered surface convex block; 31. a tension sensor; 32. an injection cavity; 33. and (5) blank material.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-7, the food-grade PE container one-step injection molding device for packaging health products comprises a device box 1 with a discharge hole 2 at the bottom, and further comprises two symmetrically arranged first telescopic devices 3 which are respectively and fixedly connected to the inner walls of the two sides of the device box 1, wherein the inner walls of the two sides of the device box 1 are also and fixedly connected with two symmetrically arranged second telescopic devices 5, the telescopic ends of the two first telescopic devices 3 are respectively and fixedly connected with two bottle body moulds 4 which are mutually symmetrical, the telescopic ends of the two second telescopic devices 5 are respectively and fixedly connected with two bottle mouth moulds 6 which are mutually symmetrical, the inner diameters of the bottle body moulds 4 and the bottle mouth moulds 6 are the same, and the outer wall of the device box 1 is provided with sliding grooves 7 which are matched with the two bottle mouth moulds 6; the two symmetrically arranged blow molding dies 16 are arranged in the device box 1 and are respectively positioned at two sides of the discharge hole 2, wherein the shaft ends of the two blow molding dies 16 are respectively provided with a concave hole 27 matched with the outer wall of the bottleneck die 6, and an automatic translation assembly for driving the two blow molding dies 16 to horizontally move is arranged in the device box 1; the semicircular openings 9 that two symmetries set up respectively in two bottleneck moulds 6 opposite sides, wherein, two semicircular openings 9 intubate have the cylindricality mould 8 that extends to in the body mould 4, form beaker shape injection cavity 32 between cylindricality mould 8 and bottleneck mould 6 and the inner wall of body mould 4, be equipped with injection tube 11 and blowing pipe 10 on the cylindricality mould 8, bottleneck mould 6, cylindricality mould 8, body mould 4 and blowing mould 16 all possess conventional heating, heat dissipation and exhaust function, and the inner wall of bottleneck mould 6 still is equipped with the screw thread recess for make the bottleneck of blank 33 produce the external screw thread.

When the device is used, raw materials are injected into the injection cavity 32 through the injection pipe 11, the raw materials form a beaker-shaped blank 33 in the injection cavity 32, at this time, the first telescopic device 3 drives the two bottle body dies 4 to separate from two sides of the blank 33, during separation, the two bottle body dies 4 can drive the two blow molding dies 16 to be mutually closed and just buckled at the lower ends of the two bottle mouth dies 6 through the automatic translation component, at this time, the blank 33 is blown through the blow molding pipe 10, the tail part of the blank 33 can expand and be limited by the inner walls of the two blow molding dies 16, the forming work of the blank 33 can be completed, after the injection process is finished, the blank 33 can be quickly moved into a blow molding process, the heat loss of the blank 33 is reduced, the blank 33 is not required to be secondarily heated for a long time, the injection process and the blow molding process are greatly shortened, the heat loss speed of the blank 33 is reduced, more heating temperatures are not required to be provided during blow molding, the processing efficiency of a health-care product container is improved, the electric energy consumption during electric heating of the bottle mouth dies 33 is reduced, after blow molding is finished, the two first telescopic devices 3 drive the two bottle body dies 4 to be mutually closed, the two bottle mouth dies 4 are mutually separated by the two blow molding dies 16, the two bottle body dies 16 are mutually separated by the two bottle body dies 6, the two bottle body dies 16 are mutually separated, the two bottle body dies are mutually, the two cylindrical dies are mutually separated from the two bottle body dies 16, the two bottle body dies are mutually separated by the two cylindrical dies 16, the two bottle body dies are mutually and the two cylindrical blank dies are mutually separated, the two cylindrical blank 16 and the two bottle body dies are respectively separated, the two 1, the two bottle body dies are respectively different from the two bottle body dies are respectively 16, and the two mutually the two cylindrical blank 33 and the bottle body and the container can be manufactured, and the two can be manufactured and the bottle.

Example 2

Referring to fig. 1-4 and 7, substantially the same as example 1, further, specific embodiments of an automatic translation assembly are specifically disclosed.

The automatic translation assembly comprises two first threaded rods 12 which are rotatably connected to the inner wall of the device box 1, the two first threaded rods 12 are parallel to the axis of the cylindrical mold 8, sliding plates 13 which are in sliding connection with the inner wall of the device box 1 are connected to the two first threaded rods 12, push rods 20 are connected to opposite faces of the two sliding plates 13 through elastic telescopic mechanisms, and the two blow molding molds 16 are respectively and fixedly connected to the two push rods 20; driven gears 15 are fixedly mounted on the outer walls of the two first threaded rods 12, and racks 14 matched with the two driven gears 15 are fixedly connected to the two bottle body molds 4.

During the separation of the two body molds 4, the two body molds 4 drive the two racks 14 to slide over the two driven gears 15, the two driven gears 15 drive the two first threaded rods 12 to rotate, the two first threaded rods 12 drive the two sliding plates 13 to slide horizontally, the two sliding plates 13 drive the two blow molds 16 to move towards the two blanks 33 through the two push rods 20, and during the separation, the elastic telescopic mechanism drives the two blow molds 16 to approach each other until the two blow molds 16 lean against the two guide risers 17, the two blow molds 16 are completely closed, the two blow molds 16 which are mutually closed are just buckled at the lower ends of the two bottleneck molds 6, at this time, the blanks 33 are blown through the blow pipes 10, and the tail parts of the blanks 33 are expanded and limited by the inner walls of the two blow molds 16, so that the forming work of the blanks 33 can be completed.

Furthermore, the second threaded rods 28 are fixedly connected to one ends of the two first threaded rods 12, the sliding rods 29 are connected to the outer walls of the two second threaded rods 28 in a threaded manner, the cylindrical dies 8 are fixedly connected to the sliding rods 29, when the first threaded rods 12 rotate to drive the two body dies 4 to move away from each other, the two first threaded rods 12 also drive the two second threaded rods 28 to rotate, the two second threaded rods 28 drive the sliding rods 29 to move in a direction away from the device box 1, the sliding rods 29 drive the cylindrical dies 8 to pull out from the two body dies 4, so that when the blow molding tube 10 blows, gas can enter the blanks 33 more uniformly instead of being intensively blown to the inner bottoms of the blanks 33, and when the first threaded rods 12 drive the second threaded rods 28 to rotate reversely, the sliding rods 29 drive the cylindrical dies 8 to slide and reset.

Example 3

Referring to fig. 3, 4 and 6, substantially the same as in example 2, further, a specific embodiment of the elastic telescopic mechanism is specifically disclosed.

The elastic telescopic mechanism comprises a sliding hole 19 arranged on the side wall of the sliding plate 13, a push rod 20 is slidably connected in the sliding hole 19, the push rod 20 is elastically connected with the inner wall of the sliding hole 19 through a return spring 21, wherein the inner wall of the device box 1 is fixedly connected with guide risers 17 positioned on two sides of the cylindrical mold 8, and the tail ends of the two guide risers 17 are fixedly connected with guide inclined plates 18 respectively propped against the outer walls of the two blow molding molds 16; during the movement of the blow moulds 16, the two guiding inclined plates 18 bring the two blow moulds 16 close to each other until the two blow moulds 16 rest on the two guiding risers 17, the two blow moulds 16 are completely closed, and the two blow moulds 16 which are mutually closed are just snapped onto the lower ends of the two bottle mouth moulds 6.

Furthermore, the stretching force sensor 31 is fixedly arranged at the stretching end of the second stretching device 5, when the bottleneck molds 6 are subjected to axial stretching force, the stretching force sensor 31 transmits signals to the controller and starts the second stretching device 5 through the controller, during the reverse movement and resetting of the two blow molding molds 16, the blow molding molds 16 can pull the bottleneck positioned in the two bottleneck molds 6, threads on the outer wall of the bottleneck can not be pulled out from the bottleneck molds 6, at the moment, the stretching force sensor 31 can detect the stretching force applied to the bottleneck, so that the second stretching device 5 is automatically started through the controller, and the second stretching device 5 can drive the two bottleneck molds 6 to be automatically separated, so that the degree of automation is greatly improved.

Example 4

Referring to fig. 1-4, substantially the same as example 3, further, a specific embodiment of blowing the product in the blow mold 16 is specifically added.

The inner walls of the two blow molding dies 16 are fixedly provided with spray pipes 25, and the two groups of spray pipes 25 are provided with blow holes 26 extending into the blow molding dies 16; the outer wall of the push rod 20 is fixedly provided with a piston 22 which is in sliding connection with the sliding hole 19, the outer wall of the sliding plate 13 is fixedly connected with an air suction pipe 24 and an air discharge pipe 23 which are communicated with the sliding hole 19, the tail end of the air discharge pipe 23 is fixedly connected and communicated with a spray pipe 25 through a connecting pipe, and the connecting pipe is mainly used for connecting the air discharge pipe 23 and the spray pipe 25 and is not shown in the figure; when two push rods 20 drive two blow molding dies 16 and keep away from each other, two push rods 20 can extrude the air in the slide hole 19 through the piston 22, and then the slide hole 19 can carry the inside air to the spray pipe 25 through blast pipe 23, blow in blow molding die 16 from blow hole 26 at last, can blow off the container of card in blow molding die 16, promote the efficiency of unloading, when two push rods 20 drive two blow molding dies 16 and be close to each other, gliding piston 22 can make slide hole 19 produce the negative pressure to make slide hole 19 draw external air through breathing pipe 24.

Further, the side walls of the two guiding inclined plates 18 are fixedly connected with a plurality of cambered surface convex blocks 30 which are linearly distributed, and when the blow molding mold 16 slides on the guiding inclined plates 18, the blow molding mold 16 is sequentially contacted with the plurality of cambered surface convex blocks 30; during the period that the two blow molds 16 are far away from each other, the outer walls of the blow molds 16 slide over the two guiding inclined plates 18, and the cambered surface convex blocks 30 on the two guiding inclined plates 18 can vibrate the two blow molds 16, so that the vibrating blow molds 16 can loosen the internal container, and the blanking efficiency is further improved.

A shaping process of food-grade PE container for packaging health products comprises the following operation steps:

step 1: injecting raw materials into the injection cavity 32 through the injection pipe 11, wherein the raw materials form a beaker-shaped blank 33 in the injection cavity 32;

step 2: the first telescopic equipment 3 drives the two bottle body molds 4 to separate from the two sides of the blank 33;

step 3: two mutually closed blow moulds 16 are buckled at the lower ends of the two bottleneck moulds 6;

step 4: blowing the blank 33 through the blow-molded tube 10, and expanding the tail of the blank 33 to finish the molding work of the blank 33;

step 5: the two first telescopic devices 3 drive the two bottle body moulds 4 to be close to each other, and the processed container can slide down towards the discharge hole 2.

When the food-grade PE container one-step injection molding device for packaging health care products is used, raw materials are injected into an injection cavity 32 through an injection pipe 11, the raw materials form beaker-shaped blanks 33 in the injection cavity 32, at the moment, two bottle body molds 4 are driven to separate from two sides of the blanks 33 through a first telescopic device 3, during separation, the two bottle body molds 4 drive two racks 14 to slide through two driven gears 15, the two driven gears 15 drive two first threaded rods 12 to rotate, the two first threaded rods 12 drive two sliding plates 13 to slide horizontally, the two sliding plates 13 drive two blow molding molds 16 to move towards the two blanks 33 through two push rods 20, and during movement of the blow molding molds 16, the two guide inclined plates 18 enable the two blow molding dies 16 to be close to each other until the two blow molding dies 16 lean against the two guide vertical plates 17, the two blow molding dies 16 can be completely closed, the two blow molding dies 16 which are mutually closed can be just buckled at the lower ends of the two bottleneck dies 6, at the moment, the blank 33 is blown through the blow molding pipe 10, the tail part of the blank 33 can expand and be limited by the inner walls of the two blow molding dies 16, the forming work of the blank 33 can be completed, in the forming process, the injection molding and blow molding processes are greatly shortened, the heat loss speed of the blank 33 is reduced, more heating temperature is not required to be provided during blow molding, the processing efficiency of a health care product container is improved, and the electric energy consumption during electric heating of the blank 33 is reduced.

After the blow molding is finished, the two first telescopic devices 3 drive the two bottle body molds 4 to be close to each other, the two first threaded rods 12 are reversed, at this time, the two blow molding molds 16 can be driven to reversely move and reset, meanwhile, the two bottle mouth molds 6 are driven to be separated from each other through the two second telescopic devices 5, then the two blow molding molds 16 which horizontally move can drive the blow molded container to move to the discharge port 2, at this time, the two blow molding molds 16 are not limited by the guide vertical plate 17 and the guide inclined plate 18 any more, the two reset springs 21 can pull the two push rods 20 to be away from each other, the two push rods 20 can drive the two blow molding molds 16 to be away from each other and reset, and the outer wall of the container and the inner wall of the blow molding mold 16 are cylindrical, so that the processed container can slide down to the discharge port 2, and the automatic discharging work of the container can be completed.

When the first threaded rod 12 rotates to drive the two body molds 4 to move away from each other, the two first threaded rods 12 also drive the two second threaded rods 28 to rotate, the two second threaded rods 28 drive the slide bars 29 to move away from the device box 1, the slide bars 29 drive the cylindrical mold 8 to pull out from the two body molds 4, so that when the blow molding pipe 10 blows, gas can more uniformly enter the blank 33 instead of being positioned at the inner bottom of the blank 33, and when the first threaded rod 12 drives the second threaded rods 28 to rotate reversely, the slide bars 29 drive the cylindrical mold 8 to slide and reset.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (6)

1. The utility model provides a food level PE container one-step method injection moulding device for health products packing, is equipped with device case (1) of discharge gate (2) including the bottom, its characterized in that still includes:

two symmetrically arranged first telescopic devices (3) are respectively and fixedly connected with the inner walls of the two sides of the device box (1),

the device comprises a device box (1), two symmetrical second telescopic devices (5) are fixedly connected to the inner walls of the two sides of the device box (1), two bottle body molds (4) are fixedly connected to the telescopic ends of the first telescopic devices (3), two bottle mouth molds (6) are fixedly connected to the telescopic ends of the two second telescopic devices (5), the inner diameters of the bottle body molds (4) and the bottle mouth molds (6) are the same, and sliding grooves (7) matched with the two bottle mouth molds (6) are formed in the outer wall of the device box (1);

two symmetrically arranged blow molding dies (16) are arranged in the device box (1) and are respectively positioned at two sides of the discharge hole (2),

the two blow molding dies (16) are provided with concave holes (27) matched with the outer walls of the bottleneck dies (6), and an automatic translation assembly for driving the two blow molding dies (16) to horizontally move is arranged in the device box (1);

two semicircular openings (9) which are symmetrically arranged are respectively arranged on the opposite surfaces of the two bottleneck molds (6),

a cylindrical mold (8) extending into the bottle body mold (4) is inserted into the two semicircular openings (9), a beaker-shaped injection cavity (32) is formed between the cylindrical mold (8) and the bottle mouth mold (6) as well as between the cylindrical mold and the inner wall of the bottle body mold (4), and an injection molding pipe (11) and a blow molding pipe (10) are arranged on the cylindrical mold (8);

the automatic translation assembly includes:

two first threaded rods (12) connected to the inner wall of the device box (1) in a rotating mode, the two first threaded rods (12) are parallel to the axis of the cylindrical die (8), sliding plates (13) connected with the inner wall of the device box (1) in a sliding mode are connected to the two first threaded rods (12),

the opposite surfaces of the two sliding plates (13) are connected with push rods (20) through elastic telescopic mechanisms, and the two blow molding dies (16) are respectively and fixedly connected to the two push rods (20);

driven gears (15) are fixedly arranged on the outer walls of the two first threaded rods (12), and racks (14) matched with the two driven gears (15) are fixedly connected to the two bottle body molds (4);

the elastic telescopic mechanism comprises:

the sliding hole (19) is arranged on the side wall of the sliding plate (13), the push rod (20) is connected in the sliding hole (19) in a sliding way, the push rod (20) is elastically connected with the inner wall of the sliding hole (19) through the reset spring (21),

the device comprises a device box (1), wherein the inner wall of the device box (1) is fixedly connected with guide risers (17) positioned at two sides of a cylindrical mold (8), and the tail ends of the two guide risers (17) are fixedly connected with guide inclined plates (18) respectively propped against the outer walls of two blow molding molds (16);

one end of each of the two first threaded rods (12) is fixedly connected with a second threaded rod (28), the outer walls of the two second threaded rods (28) are in threaded connection with a sliding rod (29), and the cylindrical die (8) is fixedly connected with the sliding rod (29).

2. The one-step injection molding device for the food-grade PE container for packaging the health care products according to claim 1, wherein the inner walls of the two blow molds (16) are fixedly provided with spray pipes (25), and the two groups of spray pipes (25) are provided with blow holes (26) extending into the blow molds (16).

3. The one-step injection molding device for a food-grade PE container for packaging healthcare products according to claim 2, wherein a plurality of cambered surface convex blocks (30) which are linearly distributed are fixedly connected to the side walls of the two guide inclined plates (18), and when the blow molding mold (16) slides on the guide inclined plates (18), the blow molding mold (16) is sequentially contacted with the plurality of cambered surface convex blocks (30).

4. The one-step injection molding device for the food-grade PE container for packaging the health products according to claim 2, wherein a piston (22) which is connected in a sliding hole (19) in a sliding way is fixedly arranged on the outer wall of the push rod (20), an air suction pipe (24) and an air exhaust pipe (23) which are communicated with the sliding hole (19) are fixedly connected on the outer wall of the sliding plate (13), and the tail end of the air exhaust pipe (23) is fixedly connected and communicated with the spray pipe (25) through a connecting pipe.

5. The one-step injection molding device for the food-grade PE container for packaging the health products according to claim 1, wherein a tension sensor (31) is fixedly arranged at the telescopic end of the second telescopic device (5), and when the bottleneck mold (6) is subjected to axial tension, the tension sensor (31) transmits a signal to the controller and starts the second telescopic device (5) through the controller.

6. A process for forming a food-grade PE container for packaging health products, which adopts the one-step injection molding device for the food-grade PE container for packaging health products according to any one of claims 1 to 5, and is characterized by comprising the following operation steps:

step 1: injecting raw materials into an injection cavity (32) through an injection pipe (11), wherein the raw materials form a beaker-shaped blank (33) in the injection cavity (32);

step 2: the two bottle body molds (4) are driven to separate from the two sides of the blank (33) through the first telescopic equipment (3);

step 3: two mutually closed blow molding dies (16) are buckled at the lower ends of the two bottleneck dies (6);

step 4: blowing the blank (33) through the blow molding pipe (10), wherein the tail part of the blank (33) expands to finish the molding work of the blank (33);

step 5: and the two first telescopic devices (3) drive the two bottle body moulds (4) to be close to each other, and the processed container can slide down towards the discharge hole (2).

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