CN111906991A

CN111906991A - Injection mold with protection architecture

Info

Publication number: CN111906991A
Application number: CN202010663658.6A
Authority: CN
Inventors: 陈美艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2020-11-10

Abstract

The invention discloses an injection mold with a protection structure, which comprises a base, an injection molding box, a molding box and a material taking mechanism, wherein the injection molding box is arranged on one side of the top surface of the base, the molding box is arranged on the other side of the top surface of the base, the injection molding box is connected with the molding box through a feeding screw rod, a buffer cavity is arranged on the side wall of a movable mold close to a fixed mold, the protection mechanism is arranged in the buffer cavity, four groups of cross rods are arranged along an annular array of the movable mold, sliding seats are respectively sleeved on the two sides of the cross rods in a sliding manner, springs are sleeved on the cross rods, the two ends of the springs are respectively connected with the sliding seats, the top of the sliding seats are movably connected with a; the invention has the advantages that the impact force generated when the movable mold and the fixed mold are closed is relieved, so that the phenomenon of impact caused by closing the fixed mold and the movable mold is effectively avoided when the mold is used for injection molding, the molded mold is flexibly sucked, and the molded product is protected.

Description

Injection mold with protection architecture

Technical Field

The invention belongs to the technical field of molds, and relates to an injection mold, in particular to an injection mold with a protection structure.

Background

Plastic injection molding is widely applied to articles for daily use, electronic products or automobile decoration.

The reference CN209350820U discloses a mechanical protection structure of a front mold core-pulling injection mold, which includes a core-pulling seat, a core-pulling seat and a wedge block, which are arranged on the front mold, wherein the core-pulling seat and the core-pulling seat are arranged in the front mold and are respectively in sliding fit with the front mold. The rear end of the core is movably connected with a core-pulling seat, and the core-pulling seat is driven to move by an oil cylinder arranged on the front mould. One side of the core-pulling seat is provided with a core-pulling seat stroke guide rod, and the core-pulling seat stroke guide rod is provided with a collision block. The wedging block is arranged in a wedging block mounting cavity on the front die, and the collision block can drive the wedging block to move. The outer side of the wedging block is provided with a stop block which can be articulated with a drag hook arranged on the front mould, and the stop block is movably arranged on the front mould. One side of the stop block is attached to the upper end of the wedging block, and the wedging block can drive the stop block to move outwards and is connected with the drag hook in a hanging mode; compared with the invention, the method has the problem of poor protection effect.

In the prior art, an injection molding device needs an ejector rod to push down an injection molded workpiece, and then the ejector rod resets to start the next mold closing of a mold; in the actions, the mold closing action is controlled by a mold closing electromagnetic valve, and the ejector rod resetting action is controlled by a core pulling electromagnetic valve, wherein the mold closing electromagnetic valve controls the mold closing action according to the set mold closing time, and if the mold lubrication is poor or the core pulling electromagnetic valve of the equipment fails, the ejector rod resetting time is too long or cannot be reset, so that the mold collision can be caused. In the plastic injection molding industry, the above-mentioned mold-impacting event is frequently occurred and cannot be predicted and prevented, especially for the mold with three-dimensional patterns or corroded surfaces, once the mold-impacting occurs, the damage of the mold will not only affect the normal operation of production, but also generate high mold repairing cost; after the mould shaping, the fixture that adopts can appear in the centre gripping usually with the hard contact of mould, leads to making the mould produce some damages when pressing from both sides, reduces the problem of the quality of product.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, an injection molding device needs an ejector rod to push down an injection molded workpiece, and then the ejector rod is reset to start the next mold closing of a mold; in the actions, the mold closing action is controlled by a mold closing electromagnetic valve, and the ejector rod resetting action is controlled by a core pulling electromagnetic valve, wherein the mold closing electromagnetic valve controls the mold closing action according to the set mold closing time, and if the mold lubrication is poor or the core pulling electromagnetic valve of the equipment fails, the ejector rod resetting time is too long or cannot be reset, so that the mold collision can be caused. In the plastic injection molding industry, the above-mentioned mold-impacting event is frequently occurred and cannot be predicted and prevented, especially for the mold with three-dimensional patterns or corroded surfaces, once the mold-impacting occurs, the damage of the mold will not only affect the normal operation of production, but also generate high mold repairing cost; after the mould shaping, the fixture that adopts can appear in the centre gripping usually with the hard contact of mould, lead to making the mould because of pressing from both sides the problem that produces some damage often, reduce the quality of product, and provide an injection mold with protection architecture.

The purpose of the invention can be realized by the following technical scheme:

an injection mold with a protection structure comprises a base, an injection molding box, a molding box and a material taking mechanism, wherein the injection molding box is arranged on one side of the top surface of the base, the molding box is arranged on the other side of the top surface of the base, the injection molding box is connected with the molding box through a feeding screw rod, the discharge end of the feeding screw rod is connected with a feed inlet on a fixed mold mounting seat, and a charging barrel is arranged at the top of the injection molding box;

a fixed die mounting seat is arranged on one side, close to the injection molding box, in the molding box, a fixed die is arranged on the fixed die mounting seat, a movable die is arranged on the other side, far away from the injection molding box, of the fixed die, a cavity is formed in the movable die, the movable die is mounted on the movable die mounting seat, the fixed die mounting seat is fixedly arranged in the molding box, the movable die mounting seat slides in the molding box, and the movable die mounting seat is connected with the output end of a hydraulic cylinder;

the movable mould is provided with the cushion chamber on being close to the lateral wall of cover half, be provided with protection mechanism in the cushion chamber, protection mechanism includes the buffer board, the horizontal pole, the movable rod, a spring, the sliding seat, the cushion intracavity sets up the horizontal pole, the horizontal pole is provided with four groups along movable mould ring array, the both sides of horizontal pole slide the cover respectively and are equipped with the sliding seat, the cover is equipped with the spring on the horizontal pole, the both ends of spring are connected with the sliding seat of both sides respectively, movable rod and buffer board swing joint are passed through at the top of sliding seat, the movable mould is close to and is provided with.

Preferably, the buffer board is rectangular annular plate, and the buffer board removes along the cushion chamber, and the cover half is provided with on being close to the lateral wall of movable mould with buffer board matched with clamp plate, the size of clamp plate and the size looks adaptation of the mounting groove on the movable mould.

Preferably, be provided with on the top surface of shaping case and get the material mouth, get material mouthful department and be provided with feeding agencies, feeding agencies installs on the shaping case, and one side of base is provided with the conveyer belt.

Preferably, the material taking mechanism comprises a first truss, a second truss, a fixed base, a first air cylinder, a bottom plate, a central block, a side plate, a clamping piece and a second air cylinder, the cross section of the first truss is of a U-shaped structure, the bottom end of the vertical part of the first truss is arranged at the material taking port of the forming box, the second truss is arranged on the horizontal part of the first truss in a sliding mode, the fixed base slides along the second truss, the first air cylinder is arranged on the fixed base, the output end of the first air cylinder is connected with the bottom plate, the central block is arranged at the center of the bottom surface of the bottom plate, the side plate is arranged around the central block, and the clamping piece is arranged on.

Preferably, the first truss is provided with a second air cylinder for driving the second truss to move, and the second truss is provided with a second air cylinder for driving the fixing seat to move.

Preferably, the clamping piece comprises a micro hydraulic cylinder, a cylinder body, a sucker, a hydraulic column and a jacking ball, the cylinder body is sleeved on the side plate, the micro hydraulic cylinder is arranged at the top of the cylinder body, the output end of the micro hydraulic cylinder is connected with the hydraulic column, the bottom end of the hydraulic column extends into the cylinder body and is connected with the jacking ball, and the sucker is arranged at the bottom of the cylinder body.

Preferably, the heading ball is made of rubber material, and the diameter of the heading ball is matched with the inner diameter of the cylinder body.

Preferably, the inside of movable mould sets up the condensation chamber, and the condensation chamber does not communicate with the cushion chamber, and the cross-section in condensation chamber is the U type, and one side of movable mould is provided with condensation exit tube and condensation respectively and advances the pipe, and the condensation exit tube is located the condensation and advances directly over the pipe, and condensation exit tube and condensation advance the pipe and communicate with the condensation chamber respectively.

Preferably, the working method of the injection mold comprises the following steps:

s1, driving a movable die on a movable die mounting seat to move towards the direction close to a fixed die and closing the movable die and the fixed die by controlling the operation of a hydraulic cylinder, wherein in the moving process of the fixed die, a pressure plate on the fixed die is firstly contacted with a buffer plate on the movable die and pushes the buffer plate to move towards a buffer cavity in the movable die, the buffer plate drives sliding seats on two sides of a cross rod to be away from each other through a movable rod, a spring is in an extension state, and the spring deforms so as to buffer the impact force generated when the movable die moves to the fixed die;

s2, adding the raw materials into an injection molding box through a charging barrel, heating and melting the raw materials through the injection molding box, extruding the raw materials through a feeding screw rod, adding the raw materials into a cavity in a movable mold, injecting a condensing medium into a condensation inlet pipe, flowing out of a condensation outlet pipe through a condensation cavity, circularly cooling a mold in the movable mold, cooling and molding the mold in the cavity, and controlling a hydraulic cylinder to work to separate a fixed mold from the movable mold and demold the mold in the cavity;

s3, the first air cylinder is controlled to drive the clamping pieces of the multiple groups on the bottom plate to clamp the formed mold, the formed mold can be flexibly sucked through the suckers arranged on the clamping pieces, then the mold on the clamping pieces is moved to the position above the conveying belt through the second air cylinders on the first truss and the second truss, the micro hydraulic cylinder is controlled to extend, the jacking ball is driven to move downwards, the formed mold is ejected out of the suckers in an elastic mode, and the molded mold is taken out of the suckers, so that the molded mold is taken.

Compared with the prior art, the invention has the beneficial effects that: the hydraulic cylinder is controlled to work, the movable die on the movable die mounting seat is driven to move towards the direction close to the fixed die, and the movable die and the fixed die are closed; the problem that in the prior art, an injection molding device needs an ejector rod to push down an injection molded workpiece, and then the ejector rod resets to start the next mold closing of the mold is solved; in the actions, the mold closing action is controlled by a mold closing electromagnetic valve, and the ejector rod resetting action is controlled by a core pulling electromagnetic valve, wherein the mold closing electromagnetic valve controls the mold closing action according to the set mold closing time, and if the mold lubrication is poor or the core pulling electromagnetic valve of the equipment fails, the ejector rod resetting time is too long or cannot be reset, so that the mold collision can be caused. In the plastic injection molding industry, the above-mentioned mold collision event is frequently occurred and cannot be predicted and prevented, and particularly, in case of a mold with a three-dimensional pattern or a corroded surface, the damage of the mold can not only affect the normal operation of production, but also cause the problem of high mold repair cost;

adding raw materials into an injection molding box through a charging barrel, heating and melting the raw materials through the injection molding box, extruding the raw materials through a feeding screw rod, adding the raw materials into a cavity in a movable mold, injecting a condensing medium into a condensation inlet pipe, flowing out of a condensation outlet pipe through a condensation cavity, circularly cooling a mold in the movable mold, and after the mold in the cavity is cooled and formed, separating a fixed mold from the movable mold by controlling a hydraulic cylinder to work, and demolding the mold in the cavity;

the first air cylinder is controlled to drive a plurality of groups of clamping pieces on the bottom plate to absorb the formed die, the formed die can be flexibly absorbed through the suckers arranged on the clamping pieces, and the sucking disc plays a role in protecting in the sucking disc process, so that the problem that in the prior art, after the die is formed, the adopted clamping mechanism is in hard contact with the die during clamping, the die is damaged due to clamping and the quality of the product is reduced; then, the mold on the clamping piece is moved to the position above the conveying belt through the second air cylinders on the first truss and the second truss, the micro hydraulic cylinder is controlled to extend, the jacking ball is driven to move downwards, the molded mold is ejected out of the suction disc in an elastic mode, and therefore the injection molded mold is taken.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic overall perspective structure of the present invention.

FIG. 2 is a schematic perspective view of the connection between the fixed mold and the movable mold according to the present invention.

Fig. 3 is a schematic structural view of a protection structure in a movable mold according to the present invention.

Fig. 4 is a schematic perspective view of a material taking mechanism according to the present invention.

Fig. 5 is a side view of a three-dimensional configuration of a take-off mechanism of the present invention.

FIG. 6 is an enlarged view of the area A in FIG. 4 according to the present invention.

Fig. 7 is a schematic structural view of the clamping member of the present invention.

In the figure: 1. a base; 2. injection molding a box; 3. a charging barrel; 4. a feed screw; 5. forming a box; 6. fixing a mold; 7. moving the mold; 8. a conveyor belt; 9. a material taking mechanism; 10. a feed inlet; 11. a cavity; 12. pressing a plate; 13. A fixed die mounting seat; 14. a buffer plate; 15. a movable die mounting seat; 16. a condensation pipe; 17. a condensing inlet pipe; 18. a cross bar; 19. a movable rod; 20. a spring; 21. a sliding seat; 22. a buffer chamber; 23. a condensation chamber; 24. a first truss; 25. a second truss; 26. a fixed seat; 27. a first cylinder; 28. a base plate; 29. A center block; 30. a side plate; 31. a clamping member; 32. a second cylinder; 33. a micro hydraulic cylinder; 34. a barrel; 35. a suction cup; 36. a hydraulic column; 37. and (4) ejecting the ball.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, an injection mold with a protection structure comprises a base 1, an injection molding box 2, a forming box 5 and a material taking mechanism 9, wherein the injection molding box 2 is arranged on one side of the top surface of the base 1, the forming box 5 is arranged on the other side of the top surface of the base 1, the injection molding box 2 is connected with the forming box 5 through a feeding screw rod 4, the discharging end of the feeding screw rod 4 is connected with a feeding hole 10 on a fixed mold mounting seat 13, and a charging barrel 3 is arranged at the top of the injection molding box 2;

a fixed die mounting seat 13 is arranged on one side, close to the injection molding box 2, in the molding box 5, a fixed die 6 is arranged on the fixed die mounting seat 13, a movable die 7 is arranged on the other side, far away from the injection molding box 2, of the fixed die 6, a die cavity 11 is arranged in the movable die 7, the movable die 7 is mounted on a movable die mounting seat 15, the fixed die mounting seat 13 is fixedly arranged in the molding box 5, the movable die mounting seat 15 slides in the molding box 5, and the movable die mounting seat 15 is connected with the output end of a hydraulic;

a buffer cavity 22 is arranged on the side wall of the movable mould 7 close to the fixed mould 6, a protection mechanism is arranged in the buffer cavity 22, the protection mechanism comprises a buffer plate 14, a cross rod 18, a movable rod 19, springs 20 and sliding seats 21, the cross rod 18 is arranged in the buffer cavity 22, four groups of the cross rods 18 are arranged along the annular array of the movable mould 7, the sliding seats 21 are respectively sleeved on two sides of the cross rod 18 in a sliding mode, the springs 20 are sleeved on the cross rod 18, two ends of each spring 20 are respectively connected with the sliding seats 21 on the two sides, the top of each sliding seat 21 is movably connected with the buffer plate 14 through the movable rod 19, a mounting groove matched with the buffer plate 14 is arranged on the side wall of the movable mould 7 close to the fixed mould 6, the movable mould 7 on the movable mould mounting seat 15 is driven to move towards the fixed mould 6 by controlling the hydraulic cylinders, the movable, thereby pushing the buffer plate 14 to move towards the buffer cavity 22 in the movable mold 7, the buffer plate 14 drives the sliding seats 21 to be away from each other through the movable rod 19, and the spring 20 is in an extension state, so that the collision force generated when the movable mold 7 and the fixed mold 6 are closed is relieved, and the phenomenon that the fixed mold 6 and the movable mold 7 are impacted due to closing is effectively avoided when the mold is injection molded; the problem that in the prior art, an injection molding device needs an ejector rod to push down an injection molded workpiece, and then the ejector rod resets to start the next mold closing of the mold is solved; in the actions, the mold closing action is controlled by a mold closing electromagnetic valve, and the ejector rod resetting action is controlled by a core pulling electromagnetic valve, wherein the mold closing electromagnetic valve controls the mold closing action according to the set mold closing time, and if the mold lubrication is poor or the core pulling electromagnetic valve of the equipment fails, the ejector rod resetting time is too long or cannot be reset, so that the mold collision can be caused. In the plastic injection molding industry, the above-mentioned mold-impacting event is frequently occurred and cannot be predicted and prevented, especially for the mold with three-dimensional texture or corroded surface, once the mold-impacting occurs, the damage of the mold will not only affect the normal operation of the production, but also cause the problem of high mold repairing cost.

The buffer plate 14 is a rectangular annular plate, the buffer plate 14 moves along the buffer cavity 22, the side wall of the fixed die 6 close to the movable die 7 is provided with a pressing plate 12 matched with the buffer plate 14, and the size of the pressing plate 12 is matched with that of the mounting groove in the movable die 7.

Be provided with on the top surface of shaping case 5 and get the material mouth, get material mouth department and be provided with feeding agencies 9, feeding agencies 9 installs on shaping case 5, and one side of base 1 is provided with conveyer belt 8, and feeding agencies 9 is used for absorbing the mould after the shaping, moves the mould after the shaping to conveyer belt 8 on and carries.

The material taking mechanism comprises a first truss 24, a second truss 25, a fixed seat 26, a first air cylinder 27, a bottom plate 28, a central block 29, a side plate 30, a clamping piece 31 and a second air cylinder 32, wherein the cross section of the first truss 24 is in a U-shaped structure, the bottom end of the vertical part of the first truss 24 is arranged at the material taking port of the forming box 5, the second truss 25 is arranged on the horizontal part of the first truss 24 in a sliding manner, the fixed seat 26 slides along the second truss 25, the first air cylinder 27 is arranged on the fixed seat 26, the output end of the first air cylinder 27 is connected with the bottom plate 28, the center block 29 is arranged at the center of the bottom surface of the bottom plate 28, the side plates 30 are arranged on the periphery of the central block 29, the clamping piece 31 is arranged on the side plate 30, the formed dies are fixed by controlling the first air cylinder 27 to drive a plurality of groups of clamping pieces 31 on the bottom plate 28, the formed dies can be flexibly sucked, and play the effect of protection at the sucking disc in-process, avoid prior art, behind the mould shaping, the fixture that adopts can appear usually when the centre gripping with the mould rigid contact, lead to can make the mould produce some damages when getting because of pressing from both sides, reduce the quality of product.

And a second air cylinder 32 for driving the second truss 25 to move is arranged on the first truss 24, and a second air cylinder 32 for driving the fixed seat 26 to move is arranged on the second truss 25.

The clamping piece 31 comprises a micro hydraulic cylinder 33, a cylinder body 34, a sucking disc 35, a hydraulic column 36 and a top ball 37, the cylinder body 34 is sleeved on the side plate 30, the micro hydraulic cylinder 33 is arranged at the top of the cylinder body 34, the output end of the micro hydraulic cylinder 33 is connected with the hydraulic column 36, the bottom end of the hydraulic column 36 extends into the cylinder body 34 and is connected with the top ball 37, and the sucking disc 35 is arranged at the bottom of the cylinder body 34.

The top ball 37 is made of rubber materials, the diameter of the top ball 37 is matched with the inner diameter of the barrel 34, the second air cylinders 32 on the first truss 24 and the second truss 25 enable the mold on the clamping piece 31 to move to the position above the conveying belt 8, the micro hydraulic cylinder 33 is controlled to extend, the top ball 37 is driven to move downwards and enable the molded mold to be ejected out of the suction disc 35 in an elastic mode, the injection molded mold is taken out of materials, the top ball 37 is made of rubber materials, the top ball 37 acts on the molded mold in an elastic contact mode, and therefore elastic unloading can be conducted on the mold.

The inside of movable mould 7 sets up condensation chamber 23, condensation chamber 23 does not communicate with cushion chamber 22, and the cross-section of condensation chamber 23 is the U type, one side of movable mould 7 is provided with condensation exit tube 16 and condensation respectively and advances pipe 17, condensation exit tube 16 is located the condensation and advances directly over pipe 17, condensation exit tube 16 advances pipe 17 and communicates with condensation chamber 23 respectively with the condensation, advance pipe 17 through advancing to the condensation and pour into the condensation medium, flow out from condensation exit tube 16 through condensation chamber 23, mould circulative cooling in the movable mould 7, behind the mould cooling shaping in the die cavity 11, work through the control pneumatic cylinder, make cover half 6 and movable mould 7 separate.

The working method of the injection mold comprises the following steps:

s1, driving the movable die 7 on the movable die mounting seat 15 to move towards the direction close to the fixed die 6 and enabling the movable die 7 and the fixed die 6 to be closed by controlling the operation of the hydraulic cylinder, wherein in the moving process of the movable die 7, the pressing plate 12 on the fixed die 6 firstly contacts with the buffer plate 14 on the movable die 7 and pushes the buffer plate 14 to move towards the buffer cavity 22 in the movable die 7, the buffer plate 14 drives the sliding seats 21 on the two sides of the cross rod 18 to be away from each other through the movable rod 19, the spring 20 is enabled to be in an extending state, and the impact force generated when the movable die 7 moves to the fixed die 6 is buffered by the deformation of the spring 20;

s2, adding the raw materials into an injection molding box 2 through a charging barrel 3, heating and melting the raw materials through the injection molding box 2, extruding the raw materials into a cavity 11 in a movable mold 7 through a feeding screw rod 4, simultaneously injecting a condensing medium into a condensation inlet pipe 17, flowing out of a condensation outlet pipe 16 through a condensation cavity 23, circularly cooling a mold in the movable mold 7, cooling and molding the mold in the cavity 11, separating the fixed mold 6 from the movable mold 7 by controlling a hydraulic cylinder to work, and demolding the mold in the cavity 11;

s3, the first air cylinder 27 is controlled to drive the plurality of groups of clamping pieces 31 on the bottom plate 28 to clamp the formed mold, the suction cups 35 arranged on the clamping pieces 31 can flexibly suck the formed mold, then the mold on the clamping pieces 31 is moved to the position above the conveyor belt 8 through the first air cylinders 32 on the first truss 24 and the second air cylinders 32 on the second truss 25, the miniature hydraulic cylinders 33 are controlled to extend, the jacking balls 37 are driven to move downwards and elastically eject the formed mold from the suction cups 35, and the injection molding mold taking work is completed.

The working principle of the invention is as follows: the hydraulic cylinder is controlled to work, the movable die 7 on the movable die mounting seat 15 is driven to move towards the direction close to the fixed die 6, and the movable die 7 and the fixed die 6 are closed, wherein in the moving process of the movable die 7, the pressing plate 12 on the fixed die 6 is firstly contacted with the buffer plate 14 on the movable die 7 and pushes the buffer plate 14 to move towards the buffer cavity 22 in the movable die 7, the buffer plate 14 drives the sliding seats 21 on the two sides of the cross rod 18 to be away from each other through the movable rod 19, the spring 20 is in an extension state, the impact force generated when the movable die 7 moves to the fixed die 6 is buffered through the deformation of the spring 20, the impact force generated when the movable die 7 and the fixed die 6 are closed is relieved, and the phenomenon that the fixed die 6 and the movable die 7 are impacted due to closing is effectively avoided when the; the problem that in the prior art, an injection molding device needs an ejector rod to push down an injection molded workpiece, and then the ejector rod resets to start the next mold closing of the mold is solved; in the actions, the mold closing action is controlled by a mold closing electromagnetic valve, and the ejector rod resetting action is controlled by a core pulling electromagnetic valve, wherein the mold closing electromagnetic valve controls the mold closing action according to the set mold closing time, and if the mold lubrication is poor or the core pulling electromagnetic valve of the equipment fails, the ejector rod resetting time is too long or cannot be reset, so that the mold collision can be caused. In the plastic injection molding industry, the above-mentioned mold collision event is frequently occurred and cannot be predicted and prevented, and particularly, in case of a mold with a three-dimensional pattern or a corroded surface, the damage of the mold can not only affect the normal operation of production, but also cause the problem of high mold repair cost;

adding raw materials into an injection molding box 2 through a charging barrel 3, heating and melting the raw materials through the injection molding box 2, extruding the raw materials into a cavity 11 in a movable mold 7 through a feeding screw rod 4, injecting a condensing medium into a condensation inlet pipe 17, flowing out of a condensation outlet pipe 16 through a condensation cavity 23, circularly cooling a mold in the movable mold 7, cooling and molding the mold in the cavity 11, and controlling a hydraulic cylinder to work to separate a fixed mold 6 from the movable mold 7 and demould the mold in the cavity 11;

the first air cylinder 27 is controlled to drive the plurality of groups of clamping pieces 31 on the bottom plate 28 to absorb the formed die, the sucking discs 35 arranged on the clamping pieces 31 can flexibly absorb the formed die and play a role in protecting the die in the sucking disc process, and the problem that in the prior art, after the die is formed, the adopted clamping mechanism is in hard contact with the die in the clamping process, so that the die is damaged due to clamping and the quality of a product is reduced; then, the mold on the clamping piece 31 is moved to the position above the conveyor belt 8 through the second air cylinders 32 on the first truss 24 and the second truss 25, the micro hydraulic cylinder 33 is controlled to extend, the jacking ball 37 is driven to move downwards, and the molded mold is elastically jacked out of the suction cup 35, so that the injection molded mold taking work is completed.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms 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 utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an injection mold with protection architecture which characterized in that: the injection molding machine comprises a base (1), an injection molding box (2), a molding box (5) and a material taking mechanism (9), wherein the injection molding box (2) is arranged on one side of the top surface of the base (1), the molding box (5) is arranged on the other side of the top surface of the base (1), the injection molding box (2) is connected with the molding box (5) through a feeding screw (4), the discharge end of the feeding screw (4) is connected with a feed inlet (10) on a fixed mold mounting seat (13), and a charging barrel (3) is arranged at the top of the injection molding box (2);

a fixed die mounting seat (13) is arranged on one side, close to the injection molding box (2), in the molding box (5), a fixed die (6) is arranged on the fixed die mounting seat (13), a movable die (7) is arranged on the other side, far away from the injection molding box (2), of the fixed die (6), a cavity (11) is arranged in the movable die (7), the movable die (7) is mounted on a movable die mounting seat (15), the fixed die mounting seat (13) is fixedly arranged in the molding box (5), the movable die mounting seat (15) slides in the molding box (5), and the movable die mounting seat (15) is connected with the output end of a hydraulic cylinder;

be provided with cushion chamber (22) on the lateral wall that movable mould (7) is close to cover half (6), be provided with protection mechanism in cushion chamber (22), protection mechanism includes buffer board (14), horizontal pole (18), movable rod (19), spring (20), sliding seat (21), set up horizontal pole (18) in buffer chamber (22), horizontal pole (18) are provided with four groups along movable mould (7) ring array, the both sides of horizontal pole (18) slide the cover respectively and are equipped with sliding seat (21), the cover is equipped with spring (20) on horizontal pole (18), the both ends of spring (20) are connected with sliding seat (21) of both sides respectively, movable rod (19) and buffer board (14) swing joint are passed through to the top of sliding seat (21), be provided with the mounting groove with buffer board (14) looks adaptation on the lateral wall that movable mould (7) are close to cover half (6).

2. An injection mould with a protective structure according to claim 1, characterized in that the buffer plate (14) is a rectangular annular plate, the buffer plate (14) moves along the buffer cavity (22), a pressing plate (12) matched with the buffer plate (14) is arranged on the side wall of the fixed mould (6) close to the movable mould (7), and the size of the pressing plate (12) is matched with the size of the mounting groove on the movable mould (7).

3. An injection mold with a protection structure, according to claim 1, characterized in that a material taking opening is arranged on the top surface of the forming box (5), a material taking mechanism (9) is arranged at the material taking opening, the material taking mechanism (9) is installed on the forming box (5), and a conveyor belt (8) is arranged on one side of the base (1).

4. The injection mold with the protection structure is characterized in that the material taking mechanism comprises a first truss (24), a second truss (25), a fixed seat (26), a first air cylinder (27), a bottom plate (28), a central block (29), a side plate (30), a clamping piece (31) and a second air cylinder (32), the cross section of the first truss (24) is of a U-shaped structure, the bottom end of the vertical part of the first truss (24) is arranged at a material taking port of the forming box (5), the second truss (25) is arranged on the horizontal part of the first truss (24) in a sliding mode, the fixed seat (26) slides along the second truss (25), the first air cylinder (27) is arranged on the fixed seat (26), the output end of the first air cylinder (27) is connected with the bottom plate (28), the central block (29) is arranged in the center of the bottom surface of the bottom plate (28), the side plate (30) is arranged on the periphery of the central block (29), the side plate (30) is provided with a clamping piece (31).

5. An injection mould with a protective structure according to claim 4, characterized in that the first girder (24) is provided with a second cylinder (32) for driving the second girder (25) to move, and the second girder (25) is provided with a second cylinder (32) for driving the fixed base (26) to move.

6. The injection mold with the protection structure, according to claim 4, is characterized in that the clamping member (31) comprises a micro hydraulic cylinder (33), a cylinder body (34), a sucking disc (35), a hydraulic column (36) and a top ball (37), the cylinder body (34) is sleeved on the side plate (30), the micro hydraulic cylinder (33) is arranged on the top of the cylinder body (34), the output end of the micro hydraulic cylinder (33) is connected with the hydraulic column (36), the bottom end of the hydraulic column (36) extends into the cylinder body (34) and is connected with the top ball (37), and the sucking disc (35) is arranged on the bottom of the cylinder body (34).

7. An injection mould with a protective structure according to claim 6, characterised in that the top ball (37) is made of rubber material and that the diameter of the top ball (37) is adapted to the inner diameter of the cylinder (34).

8. The injection mold with the protection structure, according to claim 1, is characterized in that a condensation cavity (23) is arranged inside the movable mold (7), the condensation cavity (23) is not communicated with the buffer cavity (22), the cross section of the condensation cavity (23) is U-shaped, a condensation outlet pipe (16) and a condensation inlet pipe (17) are respectively arranged on one side of the movable mold (7), the condensation outlet pipe (16) is located right above the condensation inlet pipe (17), and the condensation outlet pipe (16) and the condensation inlet pipe (17) are respectively communicated with the condensation cavity (23).

9. An injection mold with a protective structure according to claim 1, characterized in that the method of operation of the injection mold comprises the following steps:

s1, driving a movable die (7) on a movable die mounting seat (15) to move towards a direction close to a fixed die (6) and enabling the movable die (7) and the fixed die (6) to be closed by controlling the operation of a hydraulic cylinder, wherein in the moving process of the movable die (7), a pressure plate (12) on the fixed die (6) is firstly contacted with a buffer plate (14) on the movable die (7) and pushes the buffer plate (14) to move towards a buffer cavity (22) in the movable die (7), the buffer plate (14) drives sliding seats (21) on two sides of a cross rod (18) to be away from each other through a movable rod (19), a spring (20) is enabled to be in an extension state, and the spring (20) deforms so as to buffer the impact force generated when the movable die (7) moves to the fixed die (6);

s2, adding the raw materials into an injection molding box (2) through a charging barrel (3), heating and melting the raw materials through the injection molding box (2), extruding the raw materials through a feeding screw (4) and adding the raw materials into a cavity (11) in a movable mold (7), simultaneously injecting a condensing medium into a condensing inlet pipe (17), flowing out of a condensing outlet pipe (16) through a condensing cavity (23), circularly cooling a mold in the movable mold (7), and controlling a hydraulic cylinder to work after the mold in the cavity (11) is cooled and molded to separate a fixed mold (6) from the movable mold (7) and demould the mold in the cavity (11);

s3, the formed mold is clamped by controlling a plurality of groups of clamping pieces (31) on a base plate (28) through a first air cylinder (27), the formed mold can be flexibly sucked through suction cups (35) arranged on the clamping pieces (31), then the mold on the clamping pieces (31) is moved to the upper side of a conveyor belt (8) through second air cylinders (32) on a first truss (24) and a second truss (25), the miniature hydraulic cylinder (33) is controlled to extend, a jacking ball (37) is driven to move downwards and eject the formed mold from the suction cups (35) through elasticity, and therefore the injection-molded mold is taken out.