CN118404769B

CN118404769B - Injection molding equipment and process based on production of high-density high-sealing plastic container

Info

Publication number: CN118404769B
Application number: CN202410840377.1A
Authority: CN
Inventors: 凌筱斌; 张小忠
Original assignee: Hangzhou Mengcheng Plastic Packaging Co ltd
Current assignee: Hangzhou Mengcheng Plastic Packaging Co ltd
Priority date: 2024-06-27
Filing date: 2024-06-27
Publication date: 2024-09-06
Anticipated expiration: 2044-06-27
Also published as: CN118404769A

Abstract

The invention discloses injection molding equipment and a process based on high-density high-sealing plastic container production, and particularly relates to the technical field of injection molding equipment. According to the invention, the alternating switching transmission of the two die bodies is completed through the alternating mechanism, so that the alternating die opening and closing actions are completed between the two die bodies, the injection molding efficiency is improved, the two action mechanisms are respectively in linkage fit with the lower dies of the two die bodies, the extrusion and discharge work of the gas in the injection cavity of the die bodies is completed under the cooperation of the extrusion unit and the conveying unit, the interference caused by a large amount of gas in the injection cavity to the injection molding liquid is avoided, the subsequent injection molding liquid is facilitated to quickly fill the injection molding cavity, the injection molding precision is improved, and the defective rate is reduced.

Description

Injection molding equipment and process based on production of high-density high-sealing plastic container

Technical Field

The invention relates to the technical field of injection molding equipment, in particular to injection molding equipment and process based on high-density high-sealing plastic container production.

Background

Injection molding (injection molding, die casting, etc., and injection molding is taken as an example in the following expression) is one of the common manufacturing methods, materials are heated to be liquid, and are injected into a closed mold cavity through pressure injection, and are taken out after cooling and shaping, so that the production efficiency is high, the molding precision is good, the cost is low, the injection molding machine is widely used, and meanwhile, most of plastic containers and other plastic products on the market at present are molded by adopting injection molding equipment, so that the injection molding efficiency is greatly improved.

Referring to an injection molding apparatus disclosed in patent application publication No. CN117734096a, the injection molding apparatus rotates around a central axis of a frame through a cam mechanism, so as to drive a plurality of mold clamping mechanisms to mold and open a mold in sequence, when the mold clamping mechanisms are used for mold clamping, a molding cavity is formed, at this time, the injection molding mechanism injects an injection molding material in a molten state into the molding cavity, and after the injection molding material in the molding cavity is cooled and solidified into a product, the cam mechanism drives the mold clamping mechanisms to open so as to facilitate the removal of the product.

The injection molding equipment can push the power rods of the die closing mechanisms to realize die opening through the characteristic track line brought by the shape of the annular groove of the cam mechanism, but because the annular groove is connected with a plurality of power rods simultaneously, when the die opening area of the annular groove acts on the power rods, the power rods of the adjacent die closing mechanisms can be extruded by the track line of the annular groove to obtain a die opening trend, so that the injection molding operation of the adjacent die closing mechanisms is influenced, the distance between each die closing mechanism and the cam is required to be enlarged, the size of the cam is increased, and the like, so that the problem of influence on the adjacent die closing mechanisms is solved, but the mode can lead to larger occupied area of the equipment, is unfavorable for planning the space on a production line, and has unsatisfactory use effect;

Meanwhile, after the die assembly of the injection molding equipment is completed, auxiliary suction action is not completed in the die assembly mechanism, so that a large amount of air exists in the die assembly mechanism, the problem that the injection molding liquid cannot fill the injection molding cavity exists under the condition, the injection molding precision is affected, and the processing cost is increased.

Disclosure of Invention

The invention aims to provide injection molding equipment and process based on high-density high-sealing plastic container production so as to solve the technical problems.

In order to solve the technical problems, the invention is realized by the following technical scheme.

The invention relates to injection molding equipment based on high-density high-sealing plastic container production, which comprises an injection molding table, wherein an injection molding frame is additionally arranged on the upper surface of the injection molding table, two mold bodies are symmetrically arranged in the injection molding frame, two injection molding mechanisms are symmetrically arranged at the top of the injection molding frame, the output ends of the two injection molding mechanisms are respectively communicated with the two mold bodies, feeding actions on the mold bodies are completed through the injection molding mechanisms, an alternate mechanism is arranged at the bottom of the injection molding frame, the alternate mechanism is respectively in power connection with the two mold bodies, the alternate mechanism is used for completing alternate mold opening and closing actions of the two mold bodies, two action mechanisms are symmetrically arranged at two sides in the injection molding frame, respectively in linkage cooperation with the two mold bodies, and when the alternate mechanism completes the alternate actions on the two mold bodies, the linkage cooperation of the two action mechanisms is completed simultaneously, and the extrusion actions on the two mold bodies are completed through the two action mechanisms respectively.

Further, two mould bodies all include mould, lower mould and base, should go up the mould and correspond to install in moulding plastics the frame through the support, be provided with the die cavity in last mould, all install the guide arm in last mould bottom four corners department, this base is located mould below and is connected with four guide arms, should the lower mould correspond and be located mould below, is provided with the terrace die on the lower mould, and this terrace die extends to the die intracavity and forms the chamber of moulding plastics, and the lower mould corresponds the slip cap and establish on four guide arms.

Further, a power rod is arranged in the center of the base in a sliding and penetrating mode, the top of the power rod is detachably and fixedly connected with the bottom of the lower die, a reset spring is sleeved outside the power rod, a wheel seat is detachably and fixedly arranged at the bottom of the power rod, and a travelling wheel is detachably and rotatably arranged in the wheel seat.

Further, the alternating mechanism comprises rails symmetrically arranged on two sides of the bottom in the injection molding frame, a sliding table is clamped on the two rails in a sliding way, a guide piece is detachably and fixedly arranged on the upper surface of the sliding table, the guide piece is composed of two inclined tables, the two inclined tables are respectively contacted with travelling wheels of two mold bodies, the travelling wheel on one mold body is contacted with the high position of one inclined table in a normal state, the travelling wheel on the other mold body is contacted with the low position of the other inclined table, the alternating action on the two mold bodies is completed through the two inclined tables, an air cylinder is arranged on one side of the upper surface of the injection molding table through a bracket, and the output end of the air cylinder is detachably and fixedly connected with one side of the guide piece, so that the front-back linear movement operation on the guide piece is completed through the air cylinder.

Further, the two actuating mechanisms comprise extrusion barrels with open bottoms, an air inlet pipe is arranged at the top of one side of each extrusion barrel in a communicating manner, an exhaust pipe is arranged at the top of the other side of each extrusion barrel in a communicating manner, a piston head is arranged in a sliding seal manner in the extrusion barrels, a lifting rod is fixedly arranged at the top of each piston head in a concentric manner, the top of each lifting rod is arranged in a sliding seal manner to penetrate through the center of the top of each extrusion barrel, a lifting arm is vertically arranged at one side of each lower die through a support, a guide seat is arranged at one side of each upper die, the lifting arms are correspondingly and slidably clamped on the guide seats, an extrusion unit is arranged at the top of each injection molding frame above each extrusion barrel and is connected with the corresponding lifting rod, the extrusion unit is in separable contact with the lifting arm, after the lower die moves upwards to complete die assembly with the upper die, the extrusion arms are disconnected from the extrusion units in a power manner, a conveying unit is arranged at the top of each upper die in a communicating manner, the conveying unit is communicated with the air inlet pipe of each extrusion barrel, the lower die moves upwards and in a die assembly path, the lifting arm is synchronously lifted to push the extrusion units to complete force storage action, and the extrusion units are matched with the conveying units to complete the extrusion operation.

Further, the extrusion unit comprises an extrusion sleeve arranged at the inner top of the injection molding frame, an extrusion arm is slidably clamped in the extrusion sleeve, an extrusion spring is arranged between the top of the extrusion arm and the inner top of the extrusion sleeve, the extrusion arm is pushed to extend out of the extrusion sleeve through the extrusion spring, a driving plate is arranged at the bottom of the extrusion arm and is detachably and fixedly connected with the top of the lifting rod, a sliding region is penetrated and arranged on one side of the driving plate, an extension plate is slidably clamped in the sliding region, two pushing springs are arranged between the tail part of the extension plate and the inner wall of the sliding region, the extension plate is pushed to extend out of the sliding region through the two pushing springs, and the extension plate extends out of the sliding region and is in detachable contact with the top of the lifting arm in a normal state, and a pressing arm is arranged on one side of the driving plate.

Further, this conveying unit is including the intercommunication wears to establish the communicating pipe at last mould top, this communicating pipe is equipped with the end cap with the intracavity intercommunication of moulding plastics of mould body in communicating pipe bottom and moulding plastics the chamber cooperation, and run through on the end cap and set up the circular cone groove, seal and install the toper piece in circular cone groove, install the gangbar in toper piece bottom concentricity, this gangbar top corresponds the slip and wears out communicating pipe top setting, install the clamp plate at the gangbar top, be equipped with the push spring in the outside cover of gangbar, this push spring corresponds to set up between clamp plate, communicating pipe top, push the toper piece to reciprocate with circular cone groove separation completion opening action through the push spring, be equipped with the branch pipe in communicating pipe one side top intercommunication of communicating pipe, this branch pipe passes through pipeline and intake pipe intercommunication, this clamp plate sets up with the cooperation of push arm down, after the extrusion unit accomplishes the extrusion action, push arm moves down and the clamp plate contact is accomplished the extrusion.

And when the guide wheel follows the extension plate to contact with the wedge-shaped table, the extension plate is guided to be driven to shrink into the sliding area through the inclined surface of the wedge-shaped table to be separated from the lifting arm.

Further, an annular boss is provided at the bottom of the extrusion barrel, and the contact between the annular boss and the piston head is limited.

The invention also provides an injection molding process based on the production of the high-density high-sealing plastic container, which specifically comprises the following steps:

step1, firstly, feeding injection molding raw materials into an injection molding mechanism for standby, and waiting for a subsequent injection molding mechanism to feed the die body;

step 2, then feeding injection molding liquid into the die body through an injection molding mechanism to finish molding processing;

Step 3, the alternate switching transmission of the two die bodies is completed through an alternate mechanism, so that the alternate die opening and closing actions are completed between the two die bodies;

And 4, simultaneously, respectively completing linkage fit with the two die bodies through two actuating mechanisms, and completing extrusion and discharge of gas in the injection cavity of the die bodies by utilizing the actuating mechanisms.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the invention, the alternating mechanism is arranged and is extruded by the two inclined tables, so that one die body is in a die-closing state, the other die body is in a die-opening state, and the air cylinder is started at the same time, so that the relative positions of the two inclined tables and travelling wheels corresponding to the die bodies are changed, namely, the die bodies which are originally closed are driven to complete die-opening actions, and the die bodies which are originally opened are driven to complete die-closing actions, so that alternating work is completed, the two die bodies can be subjected to reciprocating alternating switching under the action of the air cylinder, and the two die bodies are driven to complete alternating die-opening actions, so that the injection molding efficiency is improved;

2. According to the invention, the action mechanism is arranged, when the lower die of the die body is driven by the alternating mechanism to finish moving up and closing the die, the action mechanism is driven to finish power storage along with the moving up, and then after the die body finishes closing the die, the power mechanism automatically finishes power disconnection, and then the power mechanism finishes extrusion and discharge of gas in an injection cavity of the die body under the cooperation of the extrusion unit and the conveying unit, so that interference caused by a large amount of gas in the injection cavity to the injection liquid is avoided, a good state is obtained in the die body, the subsequent injection liquid is beneficial to quickly filling the injection cavity, and the rate of defective products is reduced;

3. According to the invention, the conveying unit is arranged, the conical groove obtains a circulation state in a normal state, so that the extrusion and suction work of the extrusion unit on the injection cavity is facilitated, meanwhile, when the driving plate moves downwards along with the extrusion unit, the downwards-pressing arm on the driving plate moves downwards along with the driving plate under the guidance of the guide rod, so that the conical piece moves downwards and is reset to the conical groove to complete the blocking, the blocking of the communicating pipe is completed, the interference of injection liquid entering the communicating pipe to products in the injection process is avoided, and the yield is further improved.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

FIG. 1 is a front view of the whole of the present invention;

FIG. 2 is a schematic view of the mounting of the injection molding frame of the present invention on an injection molding table;

FIG. 3 is a schematic view of the mounting of two mold bodies on an injection molding frame according to the present invention;

FIG. 4 is a schematic view of two mold bodies according to the present invention;

FIG. 5 is a schematic diagram of the alternate mechanism and two die bodies of the present invention;

FIG. 6 is a schematic diagram of the distribution of the injection molding mechanism and the mold body according to the present invention;

FIG. 7 is a schematic diagram of an alternate mechanism of the present invention;

FIG. 8 is a schematic diagram of two actuating mechanisms and two mold bodies according to the present invention;

FIG. 9 is a schematic view of a die body mechanism according to the present invention;

FIG. 10 is a schematic diagram of the distribution of the road wheels and the storage tanks of the present invention;

FIG. 11 is a schematic diagram of a baffle plate and a baffle chamber distribution according to the present invention;

FIG. 12 is a schematic diagram showing the distribution of the motion mechanism and the mold body according to the present invention;

FIG. 13 is a schematic view of the extrusion barrel and die body distribution of the present invention;

FIG. 14 is a schematic view of an actuating mechanism according to the present invention;

fig. 15 is an enlarged schematic view of fig. 9 a in accordance with the present invention.

In the figure: 1. an injection molding table; 2. an injection molding frame; 3. an assembly seat; 4. a die body; 401. an upper die; 402. a lower die; 403. a base; 5. an injection molding mechanism; 6. a guide rod; 7. a male die; 8. a female mold cavity; 9. an injection cavity; 10. a power lever; 11. a return spring; 12. a wheel seat; 13. a walking wheel; 14. a track; 15. a sliding table; 16. a guide; 161. a ramp; 17. a cylinder; 18. a trigger plate; 19. a diversion cavity; 20. an opening; 21. a blocking plate; 22. a storage tank; 23. a discharge pipe; 24. a painting wheel; 25. a first plate; 26. a start arm; 27. a second plate; 28. releasing the spring; 29. a telescopic rod; 30. an extrusion cylinder; 31. an air inlet pipe; 32. an exhaust pipe; 33. a piston head; 34. a lifting rod; 35. a lifting arm; 36. a guide seat; 37. extruding the sleeve; 38. an extrusion arm; 39. extruding a spring; 40. a driving plate; 41. a sliding region; 42. an extension plate; 43. a pushing spring; 44. pressing down the arm; 45. a communicating pipe; 46. a plug; 47. a conical groove; 48. a cone; 49. a linkage rod; 50. a pressing plate; 51. pressing down the spring; 52. a branch pipe; 53. a guide wheel; 54. a wedge-shaped table; 55. an annular boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Embodiment one: the invention provides a technical scheme that: as shown in fig. 1 to 15, an injection molding device based on high-density and high-sealing plastic container production comprises an injection molding table 1, wherein an injection molding frame 2 is additionally arranged on the upper surface of the injection molding table 1, the injection molding frame 2 is in a front-back through open design, an assembly seat 3 is arranged on one side of the inner top of the injection molding frame 2, two mold bodies 4 are symmetrically and fixedly connected with the assembly seat 3, two injection molding mechanisms 5 are symmetrically arranged on the top of the injection molding frame 2, the injection molding mechanisms 5 adopt a common injection molding machine to complete injection molding feeding actions of the mold bodies 4, the output ends of the two injection molding mechanisms 5 are respectively communicated with the two mold bodies 4, feeding actions of the mold bodies 4 are completed through the injection molding mechanisms 5, an alternate mechanism is arranged in the inner bottom of the injection molding frame 2 and is respectively in power connection with the two mold bodies 4, the alternate mechanism is used for completing alternate opening and closing actions of the two mold bodies 4, two action mechanisms are symmetrically arranged on two sides of the injection molding frame 2 and are respectively in pairs, the two action mechanisms are respectively matched with the two mold bodies 4, and when the alternate mechanism pair of the two mold bodies 4 and the two action mechanisms are respectively matched with the two mold bodies 4;

The two die bodies 4 comprise an upper die 401, a lower die 402 and a base 403, wherein the upper die 401 is correspondingly arranged in an injection molding frame 2 through a bracket, a concave die cavity 8 is arranged in the upper die 401, the upper die 401 is specifically and fixedly connected with an assembly seat 3 in a detachable way through bolts, guide rods 6 are respectively arranged at four corners of the bottom of the upper die 401, the base 403 is positioned below the upper die 401 and connected with four guide rods 6, the lower die 402 is correspondingly positioned below the upper die 401, a male die 7 is arranged on the lower die 402, when the lower die 402 and the upper die 401 are clamped, the male die 7 extends into the concave die cavity 8 to form an injection molding cavity 9, the lower die 402 is correspondingly sleeved on the four guide rods 6 in a sliding way, through holes matched with the guide rods 6 are formed at four corners of the lower die 402, a power rod 10 is slidably penetrated in the center of the base 403, a reset spring 11 is correspondingly arranged between the lower die 402 and the base 403, the lower die 402 is correspondingly driven by the reset spring 11, the lower die 402 and the upper die 401 is driven to be separated from the upper die 401 by the reset spring 11, and the movable wheel seat 12 is detachably arranged at the bottom of the die 13, and the movable wheel seat is detachably arranged in the die 13;

Wherein: when injection molding is performed: after the die body 4 is assembled, at this time, the upper die 401 and the lower die 402 complete the die assembly action, the injection molding liquid is pushed into the injection molding cavity 9 of the die body 4 through the injection molding mechanism 5, the injection molding work of the product is completed through the injection molding cavity 9 of the die body 4, and the lower die 402 can complete the up-and-down movement under the guidance of the guide rod 6, so that the rapid die opening and closing action can be completed.

Wherein, install the control cabinet on moulding plastics platform 1, this control cabinet accomplishes electric connection with the automatically controlled components and parts of moulding plastics mechanism 5, alternate mechanism and action mechanism respectively, accomplishes the control operation to moulding plastics mechanism 5, alternate mechanism and action mechanism through the control cabinet, and the specific structure of controller is not restricted.

Embodiment two: according to the alternative mechanism provided in the first embodiment, the present embodiment provides a further technical solution of the alternative mechanism.

As shown in fig. 5 and 7, the alternate mechanism comprises rails 14 symmetrically arranged at two sides of the inner bottom of the injection molding frame 2, a sliding table 15 is clamped on the two rails 14 in a sliding way, a guide piece 16 is detachably and fixedly arranged on the upper surface of the sliding table 15, the guide piece 16 is composed of two inclined tables 161, the lowest inclined surfaces of the two inclined tables 161 are correspondingly arranged, the two inclined tables 161 are respectively contacted with travelling wheels 13 of two mold bodies 4, in a normal state, the travelling wheel 13 on one mold body 4 is contacted with the high position of one inclined table 161, the travelling wheel 13 on the other mold body 4 is contacted with the low position of the other inclined table 161, the alternate action on the two mold bodies 4 is completed through the two inclined tables 161, a channel matched with the guide piece 16 is penetrated and arranged on the injection molding frame 2 from left to right, an air cylinder 17 is arranged on one side of the upper surface of the injection molding frame 1 through a bracket, the output end of the air cylinder 17 is detachably and fixedly connected with one side of the guide piece 16, and the forward and backward linear movement operation on the guide piece 16 is completed through the air cylinder 17;

Noteworthy are: when the mold is opened and closed alternately: by arranging the alternating mechanism, under the normal state, the two inclined tables 161 are extruded, one die body 4 is in a die closing state, the other die body 4 is in a die opening state, meanwhile, the air cylinder 17 is started, the pushing guide piece 16 is guided by the track 14 to complete moving, so that the relative positions of the two inclined tables 161 and the travelling wheels 13 corresponding to the die bodies 4 are changed, under the extrusion guidance of the inclined planes of the inclined tables 161, the lower die 402 is pushed by the power rod 10 of the travelling wheels 13 to complete moving, and under the normal state, the lower die 402 is driven by the reset spring 11 to move downwards to be separated from the upper die 401, and the travelling wheels 13 are pushed by the reset spring 11 to contact with the surfaces of the inclined tables 161 to complete guiding, namely, the die body 4 originally closed is driven to complete die opening, and the die body 4 originally opened is driven to complete die closing, so that the alternating work is completed, the two die bodies 4 can complete reciprocating alternating switching under the action of the air cylinder 17, the alternating die opening and closing actions are driven to complete, the injection molding efficiency is improved, and the operation of a processor is facilitated;

wherein: the top of the two inclined tables 161 is detachably and fixedly provided with a trigger plate 18, the top of the inside of the wheel seat 12 is provided with a diversion cavity 19, the bottom of the diversion cavity 19 is provided with an opening 20 in a penetrating way, the bottom of the diversion cavity 19 is slidably clamped with a blocking plate 21, the blocking plate 21 is used for shielding and closing the opening 20, the bottom of the power rod 10 is provided with a storage tank 22 close to the wheel seat 12 through a bracket, lubricating oil is injected into the storage tank 22, the top of the storage tank 22 is provided with an oil inlet in a communicating way, the bottom of the storage tank 22 is provided with a discharge pipe 23 in a communicating way, the bottom of the discharge pipe 23 correspondingly extends into the diversion cavity 19, the end of the discharge pipe 23 is provided with an electromagnetic valve for controlling the on-off of the electromagnetic valve, the smearing wheel 24 is rotatably arranged above the travelling wheel 13 in the wheel seat 12, the smearing wheel 24 is positioned below the opening 20, the smearing wheel 24 is contacted with the travelling wheel 13, and an absorption layer is sleeved outside the smearing wheel 24, the absorption layer transmits lubricating oil to the travelling wheel 13, the absorption layer can adopt cotton cloth, non-woven fabrics or other materials to finish the action of transferring the lubricating oil, a first plate 25 is arranged on one side of the wheel seat 12, an actuating arm 26 is arranged on the first plate 25 in a sliding penetrating way, one end of the actuating arm 26 is detachably and fixedly connected with one side of the blocking plate 21, a second plate 27 is arranged on the other end of the actuating arm 26, a release spring 28 is arranged between the first plate 25 and the second plate 27, the release spring 28 is correspondingly sleeved outside the actuating arm 26, a telescopic rod 29 is arranged at the front end of the second plate 27, the telescopic rod 29 is matched with the triggering plate 18, the telescopic rod 29 specifically adopts a manual telescopic rod 29 or an electric telescopic rod 29 to finish the length telescopic action, the telescopic rod 29 is conveniently and finely adjusted by adapting to different die bodies 4 through the change of the length of the telescopic rod 29, the front end of the telescopic rod 29 is rotatably provided with a contact wheel through a bracket, when the die body 4 moves to the high position of the inclined table 161, the contact wheel enables the trigger plate 18 to be in contact with the telescopic rod 29 to push the blocking plate 21, and enables the opening 20 on the flow guide cavity 19 to finish the action of releasing lubricating oil;

Noteworthy are: when active lubrication is carried out: the traveling wheel 13 moves on the inclined plane of the inclined platform 161, the trigger plate 18 is arranged on the inclined platform 161, when the traveling wheel 13 approaches to the path of the trigger plate 18, the telescopic rod 29 arranged on the traveling wheel is contacted with the trigger plate 18, and is limited by the trigger plate 18, the starting arm 26 is pushed to move by the telescopic rod 29, so that the release spring 28 contracts, the blocking plate 21 is pushed to move forwards by the starting arm 26, the opening 20 at the bottom of the diversion cavity 19 is opened, lubricating oil flows out to the smearing wheel 24 through the opening 20, in the rotation of the traveling wheel 13, the lubricating oil is coated on the traveling wheel 13 by the smearing wheel 24 to finish the lubrication work, the abrasion of the traveling wheel 13 is reduced, the follow-up traveling wheel 13 moves away from the trigger plate 18 to finish the alternate action, at the moment, the opening 20 is blocked again by pulling the blocking plate 21 by the release spring 28, the length of the telescopic rod 29 is adjusted, the contact distance between the telescopic rod 29 and the trigger plate 18 is changed, the opening 20 is controlled, the lubricating oil filling quantity of the lubricating oil is controlled by the processing personnel, the lubricating oil is simultaneously, the lubricating oil is supplied to the electromagnetic valve 23 is stopped by the single-stage, the lubrication channel 19 is completely, the cycle is completely discharged, the lubricating oil is completely guaranteed, and the cycle is completely discharged by the electromagnetic valve is completely, and the lubricating oil is completely discharged by the electromagnetic valve 19, and the lubricating channel is completely in the cycle is completely and the cycle is completely closed, and the cycle is completely when the lubricating oil is completely discharged by the electromagnetic valve 19.

Embodiment III: according to the actuating mechanism provided in the first embodiment, the present embodiment provides a further technical solution of the actuating mechanism.

As shown in fig. 8 and 10 to 15, both the action mechanisms comprise a squeeze tube 30 with an open bottom, the dimensions of the squeeze tube 30 and a piston head 33 are adjusted according to the amount of the sucked gas required by the die body 4, the stability of the suction action of the squeeze tube 30 is ensured, an air inlet tube 31 is installed on the top of one side of the squeeze tube 30 in a communicating manner, a first check valve for introducing the gas into the squeeze tube 30 in a unidirectional manner is installed at the end of the air inlet tube 31, an air outlet tube 32 is installed on the top of the other side of the squeeze tube 30 in a communicating manner, a second check valve for discharging the gas out of the squeeze tube 30 in a unidirectional manner is installed at the end of the air outlet tube 32, the squeeze tube 30 is detachably fixed on the assembly seat 3 through a bracket, the top of the squeeze tube 30 is in a closed design, the piston head 33 is installed in a sliding seal manner in the squeeze tube 30, a lifting rod 34 is concentrically and fixedly installed at the top of the piston head 33, the top of the lifting rod 34 is arranged in a sliding sealing way through the center of the top of the extrusion barrel 30, a lifting arm 35 is vertically arranged on one side of the lower die 402 through a bracket, a guide seat 36 is arranged on one side of the upper die 401, the lifting arm 35 is correspondingly and slidably clamped on the guide seat 36, an extrusion unit is arranged on the top of the extrusion barrel 30 in the injection molding frame 2, the extrusion unit is connected with the lifting rod 34, the extrusion unit is in separable contact with the lifting arm 35, after the lower die 402 moves upwards to complete the die assembly with the upper die 401, the lifting arm 35 is disconnected with the extrusion unit by power to complete the extrusion action of the extrusion barrel 30, a conveying unit is communicated with the air inlet pipe 31 of the extrusion barrel 30 at the top of the upper die 401, the lifting arm 35 synchronously moves upwards to push the extrusion unit to complete the power storage action in the die assembly path of the lower die 402, the extrusion unit and the conveying unit are matched to finish the exhausting action of the gas in the injection cavity 9;

Noteworthy are: when the follow-up extrusion action is performed: by providing an action mechanism, in the path of the die body 4 which is pushed by the inclined table 161 to complete the die assembly action, the upper die 401 moves upwards in a linkage manner, the extending plate 42 in the driving plate 40 extends out of contact with the top of the lifting arm 35 in a separable manner in a normal state, so that the extending plate 42 and the driving plate 40 are pushed upwards in the upward movement of the lifting arm 35, the synchronous linkage extrusion arm 38 moves upwards in the upward movement of the driving plate 40 to complete compression force accumulation on the extrusion spring 39, meanwhile, the lifting rod 34 and the piston head 33 are pulled to move upwards in the extrusion cylinder 30 through the driving plate 40, under the action, the gas in the extrusion cylinder 30 is discharged through the exhaust pipe 32 through the extrusion of the piston head 33, after the lower die 402 and the upper die 401 are clamped, under the path, the guide wheel 53 at the top of the extending plate 42 is contacted with the wedge table 54 firstly because of the wedge table 54 arranged in the injection molding frame 2, the inclined surface of the wedge-shaped table 54 is used for extruding and guiding the guide wheel 53, so that the extension plate 42 is contracted into the sliding area 41 and compresses the pushing spring 43, under the action, the extension plate 42 is contracted and separated from the lifting arm 35, thus the pushing arm 38, the driving plate 40 and the lifting rod 34 are driven to move downwards under the pushing of the pushing spring 39, the sucking action is completed through the downward movement of the piston head 33 in the extrusion cylinder 30, the gas in the injection cavity 9 of the die body 4 after the die assembly is sucked into the extrusion cylinder 30 through the gas inlet pipe 31, the branch pipe 52 and the communicating pipe 45, the active discharging treatment of the gas in the injection cavity 9 is completed, the interference of a large amount of gas in the injection cavity 9 to the entry of injection liquid is avoided, the good state is obtained in the die body 4, the injection cavity 9 is quickly filled with the subsequent injection liquid, the injection precision is improved, and when the driving plate 40 moves downwards to the lowest position, at this time, the extending plate 42 contacts with one side of the lifting arm 35, when the die body 4 moves downwards to complete the die opening action, the lifting arm 35 moves downwards and descends below the driving plate 40, at this time, the extending plate 42 is released, the extending plate 42 is pushed to extend through the pushing spring 43, at this time, the extending plate 42 is reset to the upper side of the lifting arm 35 again, so that the next active suction operation is conveniently waited, and the use is convenient;

In the embodiment of the invention, the extrusion unit comprises an extrusion sleeve 37 arranged at the inner top of the injection molding frame 2, an extrusion arm 38 is slidably clamped in the extrusion sleeve 37, two sides of the extrusion sleeve 37 are symmetrically provided with open areas, two sides of the top of the extrusion arm 38 are symmetrically provided with clamping blocks which are correspondingly and slidably clamped in the open areas, an extrusion spring 39 is arranged between the top of the extrusion arm 38 and the inner top of the extrusion sleeve 37, the extrusion arm 38 is pushed by the extrusion spring 39 to extend out of the extrusion sleeve 37, a driving plate 40 is arranged at the bottom of the extrusion arm 38, the driving plate 40 is detachably and fixedly connected with the top of a lifting rod 34, one side of the driving plate 40, which faces to the lifting arm 35, is provided with a sliding area 41 in a penetrating way, an extension plate 42 is slidably clamped in the sliding area 41, two pushing springs 43 are arranged between the tail of the extension plate 42 and the inner wall of the sliding area 41, the extension plate 42 extends out of the sliding area 41 and can be in separable contact with the top of the lifting arm 35 under normal conditions, a lower pressing arm 44 is arranged at one side of the driving plate 40, the bottom of the lifting arm 35 is not contacted with the bottom of the lifting arm 35, and the upper guide rod is arranged at one side of the upper guide rod and the lower guide rod is corresponding to the upper guide rod 44;

In the embodiment of the invention, the conveying unit comprises a communicating pipe 45 which is communicated and penetrated at the top of an upper die 401, a top cover is detachably and hermetically arranged at the top of the communicating pipe 45, the communicating pipe 45 is communicated with the inside of an injection cavity 9 of a die body 4, a plug 46 is arranged at the bottom of the communicating pipe 45 and matched with the injection cavity 9, a conical groove 47 is penetrated and arranged on the plug 46, a conical piece 48 is hermetically arranged in the conical groove 47, the bottom of the conical piece 48 and the bottom of the plug 46 are positioned on the same plane, the shapes of the plug 46, the conical piece 48 and the injection cavity 9 are in profiling arrangement, so that the plug 46 can not interfere the molding condition of the injection cavity 9, a linkage rod 49 is concentrically arranged at the bottom of the conical piece 48, the top of the linkage rod 49 correspondingly slides out of the top of the communicating pipe 45, and the linkage rod 49 correspondingly slides through the top cover, the top of the linkage rod 49 is provided with a pressing plate 50, the outside of the linkage rod 49 is sleeved with a pressing spring 51, the pressing spring 51 is correspondingly arranged between the pressing plate 50 and the top of the communicating pipe 45, the bottom of the pressing spring 51 is in contact with the top cover, the conical piece 48 is pushed to move upwards by the pressing spring 51 to be separated from the conical groove 47 to finish opening action, the elastic coefficient of the pressing spring 51 is smaller than that of the pressing spring 39, the top of one side of the communicating pipe 45 is communicated with a branch pipe 52, the branch pipe 52 is communicated with the air inlet pipe 31 through a pipeline, the pressing plate 50 is matched with the pressing arm 44, after the pressing unit finishes the pressing action, the pressing arm 44 contacts with the pressing plate 50 downwards to finish pressing, the conical piece 48 is driven to be reset into the conical groove 47 to finish sealing, and the injection molding liquid is prevented from entering the conical groove 47 to cause interference to products in the injection molding process;

Noteworthy are: when the communicating pipe 45 is plugged: through being provided with the conveying unit, under the pushing of the pressing spring 51, the linkage rod 49 and the conical piece 48 are driven to move upwards, at the moment, the conical groove 47 obtains a circulation state, so that the extrusion unit is beneficial to completing extrusion and suction work in the injection cavity 9, meanwhile, when the driving plate 40 follows the extrusion unit to complete downward movement, the pressing arm 44 on the driving plate 40 is guided by the guide rod to complete downward movement, in a downward movement path, the pressing arm 44 contacts with the pressing plate 50 to complete pressurization, so that the pressing spring 51 deforms, the linkage rod 49 is driven to move downwards, the conical piece 48 moves downwards to be reset into the conical groove 47 to complete plugging, the plugging of the communication pipe 45 is completed, the phenomenon that the injection liquid enters the communication pipe 45 to interfere products in the injection molding process is avoided, and the yield is further improved;

in the embodiment of the invention, a guide wheel 53 is rotatably installed on one side, close to the lifting arm 35, of the top of the extension plate 42 through a bracket, a wedge-shaped table 54 is detachably fixed on the top in the injection molding frame 2, the inclined surface of the wedge-shaped table 54 is matched with the guide wheel 53, the height of the wedge-shaped table 54 is adjusted in a fit mode according to the upward movement amount of the lower die 402, meanwhile, the length of the lifting arm 35 is adjusted in a fit mode according to the upward movement amount of the lower die 402, two actuating mechanisms can be matched with the lower dies 402 of the two die bodies 4 in a follow-up mode, the guide wheel 53 is detachably contacted with the wedge-shaped table 54, when the guide wheel 53 follows the extension plate 42 to be contacted with the wedge-shaped table 54, the extension plate 42 is guided to be contracted into a sliding area 41 to be separated from the lifting arm 35 through the inclined surface of the wedge-shaped table 54, a pulley is rotatably arranged at the front end of the extension plate 42, friction is reduced through the rotary contact of the pulley with the lifting arm 35, an annular boss 55 is arranged at the bottom of the extrusion cylinder 30, and the piston head is limited through the contact of the annular boss 55 and 33.

Embodiment four: injection molding process based on the production of high-density high-sealing plastic containers, which comprises the following steps:

Step 1, firstly, feeding injection molding raw materials into an injection molding mechanism 5 for standby, and waiting for a subsequent injection molding mechanism 5 to feed the die body 4;

step 2, then feeding injection molding liquid into the mold body 4 through the injection molding mechanism 5 to finish molding;

Step 3, the alternate switching transmission of the two die bodies 4 is completed through an alternate mechanism, so that the alternate die opening and closing actions are completed between the two die bodies 4;

And 4, simultaneously, respectively completing linkage cooperation with the lower dies 402 of the two die bodies 4 through two actuating mechanisms, and completing extrusion and discharge of gas in the injection cavity 9 of the die body 4 by utilizing the actuating mechanisms.

The invention provides injection molding equipment and process based on high-density high-sealing plastic container production, and the specific working principle is as follows: firstly, the injection molding raw materials are fed into the injection molding mechanism 5 for standby, so that the feeding work of the die body 4 is finished by the subsequent injection molding mechanism 5, and the injection molding precision is improved;

simultaneously, two die bodies 4 are arranged on the injection molding frame 2, injection molding liquid is respectively fed into the two die bodies 4 through two injection molding mechanisms 5, and alternating switching transmission of the two die bodies 4 is completed through an alternating mechanism, namely when the die closing action of one die body 4 is completed through the alternating mechanism, the die opening action of the other die body 4 is completed, so that the alternating die opening and closing action is completed between the two die bodies 4, the injection molding efficiency is improved, working procedures such as blanking of workers and cleaning of the die bodies 4 are facilitated, meanwhile, the alternating mechanism is arranged below the die bodies 4, so that space layout is reasonable, and when the alternating mechanism is adopted to complete alternating opening and closing of the two die bodies 4, interference is not caused, and high precision of injection molding work is ensured;

Through being provided with two actuating mechanism, two actuating mechanism accomplish the linkage cooperation respectively with the lower mould 402 of two mould bodies 4, when the lower mould 402 of this mould body 4 is accomplished the shifting up by alternate mechanism drive and is closed, at first order to drive actuating mechanism and follow the shifting up and accomplish power storage, follow-up when mould body 4 accomplishes the compound die action after, power mechanism independently accomplishes power disconnection, immediately power mechanism accomplishes the extrusion of the interior gaseous extrusion of injection molding chamber 9 of mould body 4 under the cooperation of extrusion unit, delivery unit, avoid the entering of a large amount of gas to the injection molding liquid in injection molding chamber 9 causes the interference, make the mould body 4 obtain good state, do benefit to follow-up injection molding liquid and fill up injection molding chamber 9 fast, the injection molding precision is improved, the defective percentage can be accomplished to reset after the extrusion unit is accomplished, wait for follow-up and lift arm 35's power connection again, namely mould body 4 can additionally carry out an initiative extrusion exhaust work after single compound die action is accomplished, do benefit to the high-efficient steady of injection molding work.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. Injection molding equipment based on production of high density high seal plastic container, including moulding plastics platform (1), it has frame (2) of moulding plastics, its characterized in that to increase at moulding plastics platform (1) upper surface:

Two die bodies (4) are symmetrically arranged in the injection molding frame (2), two injection molding mechanisms (5) are symmetrically arranged at the top of the injection molding frame (2), the output ends of the two injection molding mechanisms (5) are respectively communicated with the two die bodies (4), and feeding actions of the die bodies (4) are completed through the injection molding mechanisms (5);

An alternate mechanism is arranged at the inner bottom of the injection molding frame (2), the alternate mechanism is respectively in power connection with the two die bodies (4), the alternate mechanism is used for completing alternate die opening and closing actions of the two die bodies (4), two action mechanisms are symmetrically arranged at two sides in the injection molding frame (2), the two action mechanisms are respectively in linkage fit with the two die bodies (4), and when the alternate mechanism completes alternate actions on the two die bodies (4), the linkage fit of the two action mechanisms is completed at the same time, and the extrusion actions on the two die bodies (4) are respectively completed through the two action mechanisms;

The two die bodies (4) comprise an upper die (401), a lower die (402) and a base (403), a female die cavity (8) is arranged in the upper die (401), a male die (7) is arranged on the lower die (402), and the male die (7) extends into the female die cavity (8) to form an injection cavity (9);

the two actuating mechanisms comprise extrusion barrels (30) with open bottoms, an air inlet pipe (31) is arranged at the top of one side of each extrusion barrel (30) in a communicating manner, an air outlet pipe (32) is arranged at the top of the other side of each extrusion barrel (30), a piston head (33) is arranged in a sliding seal manner in each extrusion barrel (30), lifting rods (34) are fixedly arranged at the tops of the piston heads (33) in a concentric manner, the tops of the lifting rods (34) are arranged at the centers of the tops of the extrusion barrels (30) in a sliding seal manner, and lifting arms (35) are vertically arranged at one side of a lower die (402) through supports;

a guide seat (36) is arranged on one side of the upper die (401), the lifting arm (35) is correspondingly and slidably clamped on the guide seat (36), an extrusion unit is arranged at the top in the injection molding frame (2) above the extrusion cylinder (30), the extrusion unit is connected with the lifting rod (34), the extrusion unit is in separable contact with the lifting arm (35), after the lower die (402) moves upwards to be matched with the upper die (401), the lifting arm (35) and the extrusion unit are disconnected to complete the extrusion action of the extrusion cylinder (30), a conveying unit is arranged at the top of the upper die (401) in a communicating manner, the conveying unit is communicated with the air inlet pipe (31) of the extrusion cylinder (30), and in a die clamping path of the lower die (402) moving upwards to be matched with the upper die (401), the lifting arm (35) synchronously lifts the extrusion unit to complete the force storage action, and the extrusion unit is matched with the conveying unit to complete the discharging action of air in the injection molding cavity (9);

The extrusion unit comprises an extrusion sleeve (37) arranged at the inner top of the injection molding frame (2), an extrusion arm (38) is slidably clamped in the extrusion sleeve (37), an extrusion spring (39) is arranged between the top of the extrusion arm (38) and the inner top of the extrusion sleeve (37), and the extrusion arm (38) is pushed to extend out of the extrusion sleeve (37) through the extrusion spring (39);

A driving plate (40) is arranged at the bottom of the extrusion arm (38), the driving plate (40) is detachably and fixedly connected with the top of the lifting rod (34), a sliding region (41) is penetrated and arranged on one side of the driving plate (40) towards the lifting arm (35), an extension plate (42) is in sliding clamping connection with the sliding region (41), two pushing springs (43) are arranged between the tail part of the extension plate (42) and the inner wall of the sliding region (41), the extension plate (42) is pushed by the two pushing springs (43) to extend out of the sliding region (41), and in a normal state, the extension plate (42) extends out of the sliding region (41) to be in separable contact with the top of the lifting arm (35), and a pressing arm (44) is arranged on one side of the driving plate (40);

The conveying unit comprises a communicating pipe (45) which is communicated and penetrates through the top of an upper die (401), the communicating pipe (45) is communicated with the inside of an injection molding cavity (9) of a die body (4), a plug (46) is arranged at the bottom of the communicating pipe (45) in a matched mode with the injection molding cavity (9), a conical groove (47) is formed in the plug (46) in a penetrating mode, a conical piece (48) is arranged in the conical groove (47) in a sealing mode, a linkage rod (49) is concentrically arranged at the bottom of the conical piece (48), and the top of the linkage rod (49) correspondingly slides out of the top of the communicating pipe (45);

A pressing plate (50) is arranged at the top of the linkage rod (49), a pressing spring (51) is sleeved outside the linkage rod (49), the pressing spring (51) is correspondingly arranged between the pressing plate (50) and the top of the communicating pipe (45), the conical piece (48) is pushed to move upwards by the pressing spring (51) to be separated from the conical groove (47) to finish the opening action, a branch pipe (52) is arranged at the top of one side of the communicating pipe (45) in a communicating way, the branch pipe (52) is communicated with the air inlet pipe (31) through a pipeline, the pressing plate (50) is matched with the pressing arm (44), and after the pressing unit finishes the pressing action, the pressing arm (44) moves downwards to be contacted with the pressing plate (50) to finish the pressing;

a guide wheel (53) is rotatably arranged on one side, close to the lifting arm (35), of the top of the extension plate (42) through a support, a wedge-shaped table (54) is detachably fixed on the inner top of the injection molding frame (2), the guide wheel (53) is detachably contacted with the wedge-shaped table (54), and when the guide wheel (53) follows the extension plate (42) to be contacted with the wedge-shaped table (54), the extension plate (42) is guided and driven to shrink into a sliding area (41) through the inclined surface of the wedge-shaped table (54) to be separated from the lifting arm (35).

2. Injection molding apparatus based on the production of high density, high seal plastic containers according to claim 1, characterized in that: the upper die (401) is correspondingly arranged in the injection molding frame (2) through a bracket, guide rods (6) are respectively arranged at four corners of the bottom of the upper die (401), the base (403) is positioned below the upper die (401) and connected with the four guide rods (6), the lower die (402) is correspondingly positioned below the upper die (401), and the lower die (402) is correspondingly sleeved on the four guide rods (6) in a sliding manner.

3. Injection molding apparatus based on the production of high density, high seal plastic containers according to claim 2, characterized in that: a power rod (10) is slidably arranged in the center of the base (403), the top of the power rod (10) is detachably and fixedly connected with the bottom of the lower die (402), a reset spring (11) is sleeved outside the power rod (10), a wheel seat (12) is detachably and fixedly arranged at the bottom of the power rod (10), and a travelling wheel (13) is detachably and rotatably arranged in the wheel seat (12).

4. An injection molding apparatus for high density, high seal plastic container production according to claim 3, wherein: the alternating mechanism comprises rails (14) symmetrically arranged at two sides of the inner bottom of the injection molding frame (2), a sliding table (15) is clamped on the two rails (14) in a sliding way, a guide piece (16) is detachably and fixedly arranged on the upper surface of the sliding table (15), the guide piece (16) consists of two inclined tables (161), and the two inclined tables (161) are respectively contacted with travelling wheels (13) of the two mold bodies (4);

Under normal state, the travelling wheel (13) on one die body (4) is contacted with the high position of one inclined platform (161), the travelling wheel (13) on the other die body (4) is contacted with the low position of the other inclined platform (161), the alternating motion of the two die bodies (4) is completed through the two inclined platforms (161), an air cylinder (17) is mounted on one side of the upper surface of the injection molding platform (1) through a bracket, the output end of the air cylinder (17) is detachably and fixedly connected with one side of the guide piece (16), and the front-back linear movement operation of the guide piece (16) is completed through the air cylinder (17).

5. The injection molding apparatus for producing high density, high seal plastic containers according to claim 4, wherein: an annular boss (55) is arranged at the bottom of the extrusion barrel (30), and the contact between the annular boss (55) and the piston head (33) is limited.

6. An injection molding process based on the production of high-density high-sealing plastic containers is characterized in that: injection moulding apparatus for the production of high density, high seal plastic containers according to any one of claims 1 to 5, comprising in particular the steps of:

Step 1, firstly, feeding injection molding raw materials into an injection molding mechanism (5) for standby, and waiting for a subsequent injection molding mechanism (5) to feed the mold body (4);

step 2, then feeding injection molding liquid into the mold body (4) through the injection molding mechanism (5) to finish molding processing;

step 3, the alternate switching transmission of the two die bodies (4) is completed through an alternate mechanism, so that the alternate die opening and closing actions are completed between the two die bodies (4);

And 4, simultaneously, respectively completing linkage fit with the two die bodies (4) through two actuating mechanisms, and completing extrusion and discharge of gas in the injection cavity (9) of the die bodies (4) by utilizing the actuating mechanisms.