CN110962304A

CN110962304A - Injection mold with ejection assembly

Info

Publication number: CN110962304A
Application number: CN201911348540.8A
Authority: CN
Inventors: 徐飞云; 凌法娣; 徐双财
Original assignee: Hangzhou Jiatong Machinery Co ltd
Current assignee: Hangzhou Jiatong Machinery Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-07

Abstract

The invention discloses an injection mold with an ejection assembly, wherein an air cylinder is arranged, then before mold opening, the air cylinder pushes a push rod to move, an ejection block is pushed by a connecting part to push an upper mold base upwards to push the upper mold base to be separated from a lower mold base under stress, so that a plastic product is separated from the upper mold base before mold ejection, after the ejection block pushes the upper mold base upwards, the air cylinder drives the push rod to move, so that the push rod drives a push block to move, further the push block drives a guide block to move to abut against a limiting block, and simultaneously the guide block drives a fixed block to move, so that the fixed block drives a core rod to move, so that the plastic product is separated from the lower mold base, thereby facilitating the blanking of the plastic product after mold opening, avoiding the situation that the plastic product is easy to cause strain on the surface of the molded plastic product when the plastic product is not completely separated from a movable mold during the, thereby causing surface damage to the finished plastic product when the mold is opened.

Description

Injection mold with ejection assembly

Technical Field

The invention relates to the field of injection molds, in particular to an injection mold with an ejection assembly, and belongs to the technical field of injection mold application with the ejection assembly.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The existing injection mold is generally provided with a push-out mechanism, in the mold opening process, a plastic product is moved in a fixed mold through the push-out mechanism so as to facilitate blanking of the plastic product after mold opening, but in the mold opening process, because the push-out mechanism can only push out or pull out the plastic product in the horizontal direction, in the mold opening process, when the plastic product is not completely separated from a movable mold, the horizontal push-out or pull-out easily causes strain on the surface of the molded plastic product, so that the surface damage of the finished plastic product is caused during mold opening, and the yield of the plastic product is reduced.

Disclosure of Invention

The invention aims to provide an injection mold with an ejection assembly, and the injection mold is used for solving the technical problems that in the mold opening process of the existing injection mold, a pushing mechanism can only push a plastic product in the horizontal direction, so that in the mold opening process, when the plastic product is not completely separated from a movable mold, the horizontal pushing easily causes strain on the surface of the molded plastic product, the surface damage is caused to the finished plastic product in the mold opening process, and the yield of the plastic product is reduced.

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

an injection mold with an ejection assembly, comprising: the plastic product injection mold comprises an upper mold base, a lower mold base, a parison positioned at the top end of the lower mold base, an air cylinder fixedly arranged at one end of the lower mold base, and an ejection block positioned at the upper end of the lower mold base and used for ejecting the upper mold base before a plastic product is pulled out, wherein an upper mold plate is fixedly arranged at the top end of the upper mold base through a bolt, an injection mold used for injecting molten materials is fixedly arranged at the center position of the top end of the upper mold plate through a bolt, the lower mold base is arranged at the bottom end of the upper mold base, a groove is formed in one end of the lower mold base, mounting plates are symmetrically arranged in the groove and fixedly connected with the lower mold base through bolts, the parison is arranged at one end of the mounting plates, the parison is fixedly arranged at the upper end of the lower mold base, an adjusting plate is fixedly arranged at one end, one end of a push rod penetrates through the adjusting plate and extends towards the center of the lower die base, one end of the push rod is fixedly connected with a push block through a threaded hole, the push block is of a T-shaped structure, one end of the push block is clamped and fixed with a guide block, one end of the guide block is symmetrically provided with an ejection groove, the ejection groove is internally and movably provided with an ejection block, the bottom end of the ejection block is integrally connected with a connecting part, the connecting part and the ejection block are arranged in an obtuse included angle, the bottom end of the connecting part is fixedly connected with a fixed block through a mounting hole, the bottom end of the connecting part penetrates through the fixed block and extends downwards, the bottom end of the connecting part is fixedly provided with a movable shaft through a mounting hole, one end of the movable shaft is movably connected with the movable block through a shaft hole, one end of the movable block is fixedly connected with a connecting shaft through a mounting, bolt fixed mounting is passed through to the one end of fixed block has the plug, the one end of plug runs through dog and backup pad in proper order and extends to parison one side that the lower die holder upper end set up, the plug is respectively through mounting hole and dog and backup pad swing joint, the one end of plug is provided with buffer spring, buffer spring's top and fixed block welded fastening, there is the cooling tube through mounting hole fixed mounting in the upper die holder, the cooling tube is the U-shaped in the upper die holder and walks the line setting, the one end of adjusting plate has the pipe through mounting hole fixed mounting, the one end of pipe runs through the adjusting plate and extends to the lower die holder, the pipe passes through mounting hole.

Further, the one end of guide block is provided with the activity groove, and the activity inslot level is provided with a plurality of limiting plates, and a plurality of limiting plates separate the fixed block that sets up in the guide block, and a plurality of limiting plates pass through bolt and guide block fixed connection.

Further, the guide block is a stepped square-shaped structure, one end of the guide block is symmetrically provided with a limiting hole, a limiting block is arranged in the limiting hole, the limiting block is of a T-shaped structure, and the limiting block is fixedly connected with the lower die holder through a bolt.

Furthermore, a plurality of mounting holes are formed in the periphery of the upper die plate at equal intervals, guide pillars for assisting the upper die base and the lower die base in centering during die closing are fixedly mounted in the mounting holes, and the bottom ends of the guide pillars penetrate through the upper die plate and extend downwards.

Furthermore, the bottom end of the guide pillar is fixedly connected with the first guide sleeve through a mounting hole, the first guide sleeve is fixedly connected with the upper die base through the mounting hole, the bottom end of the first guide sleeve penetrates through the lower die base to extend downwards, and the first guide sleeve is fixedly connected with the lower die base through the mounting hole.

Further, be provided with the fixed plate that is used for fixing a position relative position between upper die base and the die holder, fixed pin and die holder fixed connection are passed through to the bottom of fixed plate, and fixed pin and upper die base fixed connection are passed through to the top of fixed plate.

Further, the bottom of die holder is through a plurality of locating levers and base fixed connection, and a plurality of locating levers pass through mounting hole and die holder fixed connection, and the die holder downwardly extending is run through to the bottom of a plurality of locating levers, and screw hole and base fixed connection are passed through to the bottom of a plurality of locating levers, and the base is provided with open-ended square structure for inside cavity and one end, and there is the lower bolster bottom of base through bolt fixed mounting.

Furthermore, a plurality of second guide sleeves are arranged at equal intervals at the bottom end of the lower die holder and are fixedly connected with the lower die holder through bolts, elastic columns are fixedly arranged at the bottom ends of the second guide sleeves through bolts, the bottom ends of the elastic columns are fixedly connected with the bottom plate through mounting holes, compression springs are mounted on the elastic columns, the bottom ends of the compression springs are fixedly welded with the bottom plate, and the bottom plate is fixedly connected with the base through bolts.

Furthermore, the bottom end of the lower die holder is symmetrically provided with support rods, the top ends of the support rods are fixedly connected with the lower die holder through bolts, and the bottom ends of the support rods are fixedly connected with the bottom plate through mounting holes.

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

the injection mold comprises a first step of fixedly connecting an upper template with an upper mold base through bolts, fixedly connecting a plurality of guide pillars with the upper mold base through mounting holes, mounting the upper mold base above a lower mold base through a manipulator, fixedly connecting the guide pillars with a first guide sleeve through the mounting holes, and fixedly connecting an injection mold with an injection port of the injection molding machine through a clamp;

secondly, starting an injection molding machine to enable the molten material to enter the parison through an injection mold, and cooling the plastics injected into the upper mold base and the lower mold base through condensate in a cooling pipe and a conduit after injection to form a plastic product;

before the die sinking, the air cylinder is started to push the push rod to move, so that the push rod pushes the push block to move, the push block is further pushed to move along the horizontal direction by the push block, the guide block is further pushed to move the connecting shaft, the connecting shaft pushes the movable block to move towards one end of the parison, the movable block is further pushed to move the connecting part by the movable shaft, the ejection block is further pushed upwards by the connecting part to push the upper die base, and the upper die base is forced to be separated from the lower die base;

and fourthly, after the upper die base is ejected, the cylinder drives the push rod to move, so that the push rod drives the push block to move, the push block drives the guide block to move to abut against the limiting block, the ejection block cancels ejection force on the upper die base, and meanwhile, the guide block drives the fixing block to move, so that the fixing block drives the core rod to move, horizontal application force is provided for the plastic product, and the plastic product is separated from the lower die base.

The invention has the beneficial effects that:

1. by arranging the air cylinder, before the die sinking, the air cylinder pushes the push rod to move, so that the movable block pushes the connecting part to move through the movable shaft, and further pushes the ejection block to upwards push the upper die base through the connecting part, so that the upper die base is stressed to be separated from the lower die base, the plastic product is separated from the upper die base before the die sinking, after the ejection block upwards ejects the upper die base, the air cylinder drives the push rod to move, so that the push rod drives the push block to move, and further drives the guide block to move to be abutted against the limiting block through the push block, and simultaneously, the guide block drives the fixed block to move, so that the fixed block drives the core rod to move, so that horizontal force is applied to the plastic product, the plastic product is separated from the lower die base, the plastic product is conveniently blanked after the die sinking, and therefore, the plastic product is prevented from being completely separated from the movable die sinking process, when the plastic product is, thereby causing surface damage to the finished plastic product when the mold is opened.

2. Through installing compression spring on the elasticity post, compression spring's bottom and bottom plate welded fastening, the bottom plate passes through bolt and base fixed connection, and then carries out the in-process of compound die or die sinking at upper die base and die holder, and the exciting force that receives between upper die base and the die holder can cushion through the elastic deformation ability of compression spring self for upper die base and die holder are at compound die and die sinking in-process more stable.

3. Set up the fixed plate that is used for fixing a position relative position between upper die base and the die holder through between upper die base and the die holder, when injecting, pass through the fixed pin vertical fixation with the fixed plate between upper die base and the die holder, when drawing of patterns, the fixed pin that will be located the fixed plate top takes out to it is spacing to upper die base and die holder to withdraw the fixed plate, make the in-process of moulding plastics, interval between upper die base and the die holder can not cause too big influence because of the thermal energy among the in-process of injection melt.

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 an overall installation schematic of the present invention.

Fig. 2 is an overall mounting elevation view of the present invention.

Fig. 3 is an installation diagram of the upper die holder of the present invention.

Fig. 4 is a schematic view of the installation of a parison of the present invention.

Fig. 5 is a schematic view of the installation of the ejector block of the present invention.

Fig. 6 is a schematic view showing the installation of the mandrel of the present invention.

In the figure: 1. mounting a template; 2. an upper die holder; 3. a lower die holder; 4. a base; 5. a lower template; 6. injection molding; 7. a cylinder; 8. a fixing plate; 9. a fixing pin; 10. a base plate; 11. an adjustment plate; 12. a support bar; 13. an elastic column; 14. a compression spring; 15. a first guide sleeve; 16. a guide post; 17. a cooling tube; 18. positioning a rod; 19. a parison; 20. ejecting a block; 21. a push rod; 22. a conduit; 23. a push block; 24. a guide block; 25. a limiting block; 26. mounting a plate; 27. a second guide sleeve; 28. a movable groove; 29. a limiting plate; 30. ejecting the groove; 31. a stopper; 32. a support plate; 33. a fixed block; 34. a core rod; 35. a buffer spring; 36. a movable shaft; 37. a movable block; 38. and (7) connecting the shafts.

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. 1-6, an injection mold with an ejection assembly, comprising: the plastic product drawing device comprises an upper die base 2, a lower die base 3, a parison 19 positioned at the top end of the lower die base 3, an air cylinder 7 fixedly arranged at one end of the lower die base 3, an ejection block 20 positioned at the upper end of the lower die base 3 and used for ejecting the upper die base 2 before drawing out a plastic product, an upper die plate 1 fixedly arranged at the top end of the upper die base 2 through a bolt, an injection die 6 used for injecting molten materials is fixedly arranged at the center position of the top end of the upper die plate 1 through a bolt, the injection die 6 is in a conical structure, the lower die base 3 is arranged at the bottom end of the upper die base 2, a groove is arranged at one end of the lower die base 3, mounting plates 26 are symmetrically arranged in the groove, the mounting plates 26 are fixedly connected with the lower die base 3 through bolts, an adjusting plate 11 is fixedly arranged at one end of the mounting plate 26 through a bolt, one end of the cylinder 7 is movably provided with a push rod 21, one end of the push rod 21 penetrates through the adjusting plate 11 and extends towards the center of the lower die holder 3, one end of the push rod 21 is fixedly connected with a push block 23 through a threaded hole, the push block 23 is of a T-shaped structure, one end of the push block 23 is fixedly clamped with a guide block 24, one end of the guide block 24 is symmetrically provided with ejection grooves 30, an ejection block 20 is movably arranged in the ejection grooves 30, the bottom end of the ejection block 20 is integrally connected with a connecting part, the connecting part and the ejection block 20 are arranged in an obtuse included angle, the bottom end of the connecting part is fixedly connected with a fixed block 33 through a mounting hole, the bottom end of the connecting part penetrates through the fixed block 33 and extends downwards, the bottom end of the connecting part is fixedly provided with a movable shaft 36 through a mounting hole, one end of the movable shaft 36 is movably connected with a movable block 37 through a shaft hole, one, one end of the guide block 24 is fixedly provided with a stop block 31 through a bolt, one end of the stop block 31 is fixedly connected with the support plate 32 through a bolt, one end of the fixed block 33 is fixedly provided with a core rod 34 through a bolt, one end of the core rod 34 sequentially penetrates through the stop block 31 and the support plate 32 and extends towards one side of a parison 19 arranged at the top end of the lower die holder 3, the core rod 34 is movably connected with the stop block 31 and the support plate 32 through mounting holes respectively, one end of the core rod 34 is provided with a buffer spring 35, the top end of the buffer spring 35 is fixedly welded with the fixed block 33, further, before die opening, the air cylinder 7 is started to push the push rod 21 to move, so that the push rod 21 pushes the push block 23 to move, further, the guide block 24 is pushed by the push block 23 to move along the horizontal direction, so that the guide block 24 pushes the connecting shaft 38 to move, and then the connecting part pushes the ejection block 20 to push the upper die holder 2 upwards, so that the upper die holder 2 is stressed to be separated from the lower die holder 3, the plastic product is separated from the upper die holder 2 before being ejected, after the ejection block 20 pushes the upper die holder 2 upwards, the air cylinder 7 drives the push rod 21 to move, so that the push rod 21 drives the push block 23 to move, and further drives the guide block 24 to move to abut against the limit block 25 through the push block 23, so that the ejection force on the upper die holder 2 is cancelled by the ejection block 20, meanwhile, the guide block 24 drives the fixed block 33 to move, so that the fixed block 33 drives the core rod 34 to move, so as to provide horizontal force to the plastic product, so that the plastic product is separated from the lower die holder 3, thereby facilitating the blanking of the plastic product after the die sinking, and avoiding the situation that the plastic product is easy to cause pulling damage to the surface of the molded plastic product due to horizontal ejection or pulling when the plastic product is not completely, thereby causing surface damage to the finished plastic product when the mold is opened.

There is cooling tube 17 through mounting hole fixed mounting in the upper die base 2, be provided with the condensate in the cooling tube 17, cooling tube 17 is the U-shaped in upper die base 2 and walks the line setting, mounting hole fixed mounting is passed through to the one end of adjusting plate 11 has pipe 22, the one end of pipe 22 runs through adjusting plate 11 and extends to 3 interior extensions of die holder, pipe 22 passes through mounting hole and 3 fixed connection of die holder, be provided with the condensate in the pipe 22, make pipe 22 and cooling tube 17 cool off die holder 3 and upper die base 2 after the injection melt.

One end of the guide block 24 is provided with a movable groove 28, a plurality of limiting plates 29 are horizontally arranged in the movable groove 28, the plurality of limiting plates 29 separate fixed blocks 33 arranged in the guide block 24, and the plurality of limiting plates 29 are fixedly connected with the guide block 24 through bolts.

Guide block 24 is stairstepping side massive structure, and guide block 24's one end symmetry is provided with spacing hole, and spacing downthehole stopper 25 that is provided with is the T font structure, and stopper 25 passes through bolt and 3 fixed connection of die holder for when cylinder 7 promoted guide block 24 and removes along the horizontal direction, stopper 25 can carry on spacingly to guide block 24's displacement range.

A plurality of mounting holes are formed in the periphery of the upper template 1 at equal intervals, guide posts 16 used for assisting the upper die holder 2 and the lower die holder 3 in centering during die assembly are fixedly mounted in the mounting holes, and the bottom ends of the guide posts 16 penetrate through the upper template 1 and extend downwards.

The bottom end of the guide pillar 16 is fixedly connected with the first guide sleeve 15 through a mounting hole, the first guide sleeve 15 is fixedly connected with the upper die base 2 through the mounting hole, the bottom end of the first guide sleeve 15 penetrates through the lower die base 3 and extends downwards, the first guide sleeve 15 is fixedly connected with the lower die base 3 through the mounting hole, and the upper die base 2 and the lower die base 3 can be accurately centered when die assembly is carried out through the cooperation of the first guide sleeve 15 and the guide pillar 16.

Be provided with between upper die base 2 and the die holder 3 and be used for fixing a position the fixed plate 8 of relative position between upper die base 2 and the die holder 3, fixed

9 and 3 fixed connection of die holder are passed through to fixed plate 8's bottom, fixed

9 and 2 fixed connection of upper die base are passed through on fixed plate 8's top, when injecting, with fixed plate 8 through fixed pin 9 vertical fixation between upper die base 2 and die holder 3, when drawing of patterns, the fixed pin 9 that will be located the 8 tops of fixed plate takes out, with the spacing of withdrawing fixed plate 8 to upper die base 2 and die holder 3, make the in-process of moulding plastics, interval between upper die base 2 and the die holder 3 can not cause too big influence because of the thermal energy because of the in-process of injection melt.

The bottom of die holder 3 is through a plurality of locating levers 18 and 4 fixed connection of base, and a plurality of locating levers 18 pass through mounting hole and 3 fixed connection of die holder, and 3 downwardly extending of die holder are run through to the bottom of a plurality of locating levers 18, and screw hole and 4 fixed connection of base are passed through to the bottom of a plurality of locating levers 18, and base 4 is provided with open-ended square structure for inside cavity and one end, and there is lower bolster 5 bottom of base 4 through bolt fixed mounting.

The equidistant a plurality of second guide pin bushings 27 that are provided with in bottom of die holder 3, a plurality of second guide pin bushings 27 pass through bolt and 3 fixed connection of die holder, there is elasticity post 13 in the bottom of a plurality of second guide pin bushings 27 through bolt fixed mounting, the bottom of elasticity post 13 is through mounting hole and bottom plate 10 fixed connection, install compression spring 14 on the elasticity post 13, compression spring 14's bottom and bottom plate 10 welded fastening, bottom plate 10 passes through bolt and 4 fixed connection of base, and then carry out the in-process of compound die or die sinking at upper die base 2 and die holder 3, the exciting force that receives between upper die base 2 and the die holder 3 can cushion through the elastic deformation ability of compression spring 14 self, make upper die base 2 and die holder 3 more stable in compound die and die sinking process.

The bottom end of the lower die holder 3 is symmetrically provided with support rods 12, the top ends of the support rods 12 are fixedly connected with the lower die holder 3 through bolts, and the bottom ends of the support rods 12 are fixedly connected with the bottom plate 10 through mounting holes.

firstly, fixedly connecting an upper template 1 with an upper die base 2 through bolts, fixedly connecting a plurality of guide pillars 16 with the upper die base 2 through mounting holes, mounting the upper die base 2 above a lower die base 3 through a manipulator, fixedly connecting the plurality of guide pillars 16 with a first guide sleeve 15 through the mounting holes, and fixedly connecting an injection die 6 with an injection port of an injection molding machine through a clamp;

secondly, starting the injection molding machine to enable molten materials to enter the parison 19 through the injection mold 6, and cooling the plastics injected into the upper mold base 2 and the lower mold base 3 through condensate in the cooling pipe 17 and the guide pipe 22 after injection to form plastic products;

thirdly, before the die is opened, the air cylinder 7 is started, the air cylinder 7 pushes the push rod 21 to move, the push rod 21 pushes the push block 23 to move, the push block 23 pushes the guide block 24 to move in the horizontal direction, the guide block 24 pushes the connecting shaft 38 to move, the connecting shaft 38 pushes the movable block 37 to move towards one end of the parison 19, the movable block 37 pushes the connecting part to move through the movable shaft 36, the ejection block 20 is pushed through the connecting part to push the upper die holder 2 upwards, and the upper die holder 2 is separated from the lower die holder 3 under the force;

fourthly, after the upper die holder 2 is ejected, the cylinder 7 drives the push rod 21 to move, so that the push rod 21 drives the push block 23 to move, and then the push block 23 drives the guide block 24 to move to abut against the limit block 25, so that the ejection block 20 cancels ejection force on the upper die holder 2, and meanwhile the guide block 24 drives the fixed block 33 to move, so that the fixed block 33 drives the core rod 34 to move, thereby applying force in the horizontal direction to the plastic product, and separating the plastic product from the lower die holder 3.

When the invention is used, the cylinder 7 is arranged, and further before the die is opened, the cylinder 7 pushes the push rod 21 to move, so that the movable block 37 pushes the connecting part to move through the movable shaft 36, and further pushes the ejection block 20 to push the upper die holder 2 upwards through the connecting part, so that the upper die holder 2 is stressed to be separated from the lower die holder 3, the plastic product is separated from the upper die holder 2 before the die is opened, after the ejection block 20 pushes the upper die holder 2 upwards, the cylinder 7 drives the push rod 21 to move, so that the push rod 21 drives the push block 23 to move, and further the push block 23 drives the guide block 24 to move to be abutted against the limiting block 25, so that the ejection block 20 cancels the ejection force on the upper die holder 2, and simultaneously the guide block 24 drives the fixed block 33 to move, so that the fixed block 33 drives the core rod 34 to move, and thus horizontal force is provided to the plastic product, so that the plastic product is separated from the, therefore, the problem that when the plastic product is not completely separated from the movable mold in the mold opening process, the surface of the molded plastic product is easily damaged by horizontal pushing or pulling, and the surface damage of the finished plastic product is caused in the mold opening process is avoided; the bottom end of the elastic column 13 is fixedly connected with the bottom plate 10 through a mounting hole, a compression spring 14 is mounted on the elastic column 13, the bottom end of the compression spring 14 is fixedly welded with the bottom plate 10, the bottom plate 10 is fixedly connected with the base 4 through a bolt, and further, in the process of die assembly or die opening of the upper die holder 2 and the lower die holder 3, the exciting force applied between the upper die holder 2 and the lower die holder 3 can be buffered through the elastic deformation capacity of the compression spring 14, so that the upper die holder 2 and the lower die holder 3 are more stable in the process of die assembly and die opening; be provided with between upper die base 2 and the die holder 3 and be used for fixing a position the fixed plate 8 of relative position between upper die base 2 and the die holder 3, fixed pin 9 and 3 fixed connection of die holder are passed through to fixed plate 8's bottom, fixed pin 9 and 2 fixed connection of upper die base are passed through on fixed plate 8's top, when injecting, with fixed plate 8 through fixed pin 9 vertical fixation between upper die base 2 and die holder 3, when drawing of patterns, the fixed pin 9 that will be located the 8 tops of fixed plate takes out, with the spacing of withdrawing fixed plate 8 to upper die base 2 and die holder 3, make the in-process of moulding plastics, interval between upper die base 2 and the die holder 3 can not cause too big influence because of the thermal energy because of the in-process of injection melt.

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 embodiments 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 ejection assembly which characterized in that includes: the plastic product drawing die comprises an upper die base (2), a lower die base (3), a parison (19) positioned at the top end of the lower die base (3), an air cylinder (7) fixedly installed at one end of the lower die base (3), and an ejection block (20) positioned at the upper end of the lower die base (3) and used for ejecting the upper die base (2) before a plastic product is drawn out, wherein an upper die plate (1) is fixedly installed at the top end of the upper die base (2) through bolts, an injection die (6) used for injecting a molten material is fixedly installed at the center position of the top end of the upper die plate (1) through bolts, the lower die base (3) is arranged at the bottom end of the upper die base (2), a groove is formed at one end of the lower die base (3), mounting plates (26) are symmetrically arranged in the groove, the mounting plates (26) are fixedly connected with the lower die base (3) through, an adjusting plate (11) is fixedly arranged at one end of the mounting plate (26) through a bolt, the adjusting plate (11) is positioned at one end of the lower die holder (3) and is arranged perpendicular to the mounting plate (26), one end of the adjusting plate (11) is fixedly connected with the air cylinder (7) through a bolt, a push rod (21) is movably arranged at one end of the air cylinder (7), one end of the push rod (21) penetrates through the adjusting plate (11) and extends towards the center of the lower die holder (3), one end of the push rod (21) is fixedly connected with a push block (23) through a threaded hole, the push block (23) is of a T-shaped structure, one end of the push block (23) is fixedly connected with a guide block (24) in a clamping manner, one end of the guide block (24) is symmetrically provided with ejection grooves (30), an ejection block (20) is movably arranged in the ejection grooves (30), the bottom end of the ejection block (20) is integrally connected, the bottom end of the connecting part is fixedly connected with the fixed block (33) through a mounting hole, the bottom end of the connecting part penetrates through the fixed block (33) and extends downwards, a movable shaft (36) is fixedly arranged at the bottom end of the connecting part through the mounting hole, one end of the movable shaft (36) is movably connected with a movable block (37) through a shaft hole, one end of the movable block (37) is fixedly connected with a connecting shaft (38) through the mounting hole, the connecting shaft (38) is fixedly connected with a guide block (24) through the mounting hole, a stop block (31) is fixedly arranged at one end of the guide block (24) through a bolt, one end of the stop block (31) is fixedly connected with a support plate (32) through a bolt, a core rod (34) is fixedly arranged at one end of the fixed block (33) through a bolt, one end of the core rod (34) sequentially penetrates through the stop block (31) and, core rod (34) are respectively through mounting hole and dog (31) and backup pad (32) swing joint, the one end of core rod (34) is provided with buffer spring (35), the top and fixed block (33) welded fastening of buffer spring (35), there are cooling tube (17) through mounting hole fixed mounting in upper die base (2), cooling tube (17) are the U-shaped and walk the line setting in upper die base (2), the one end of adjusting plate (11) has pipe (22) through mounting hole fixed mounting, the one end of pipe (22) runs through adjusting plate (11) and extends to interior in lower die base (3), pipe (22) pass through mounting hole and die holder (3) fixed connection.

2. The injection mold with the ejection assembly according to claim 1, wherein a movable groove (28) is formed in one end of the guide block (24), a plurality of limiting plates (29) are horizontally arranged in the movable groove (28), the plurality of limiting plates (29) separate a fixed block (33) arranged in the guide block (24), and the plurality of limiting plates (29) are fixedly connected with the guide block (24) through bolts.

3. The injection mold with the ejection assembly according to claim 1, wherein the guide block (24) is of a stepped square block structure, one end of the guide block (24) is symmetrically provided with limiting holes, limiting blocks (25) are arranged in the limiting holes, the limiting blocks (25) are of a T-shaped structure, and the limiting blocks (25) are fixedly connected with the lower mold base (3) through bolts.

4. The injection mold with the ejection assembly as claimed in claim 1, wherein a plurality of mounting holes are formed around the upper mold plate (1) at equal intervals, guide posts (16) for assisting centering of the upper mold base (2) and the lower mold base (3) during mold closing are fixedly mounted in the mounting holes, and bottom ends of the guide posts (16) penetrate through the upper mold plate (1) and extend downwards.

5. The injection mold with the ejection assembly as claimed in claim 4, wherein the bottom end of the guide post (16) is fixedly connected with the first guide sleeve (15) through a mounting hole, the first guide sleeve (15) is fixedly connected with the upper mold base (2) through a mounting hole, the bottom end of the first guide sleeve (15) penetrates through the lower mold base (3) to extend downwards, and the first guide sleeve (15) is fixedly connected with the lower mold base (3) through a mounting hole.

6. The injection mold with the ejection assembly according to claim 1, wherein a fixing plate (8) for positioning the relative position between the upper mold base (2) and the lower mold base (3) is arranged between the upper mold base (2) and the lower mold base (3), the bottom end of the fixing plate (8) is fixedly connected with the lower mold base (3) through a fixing pin (9), and the top end of the fixing plate (8) is fixedly connected with the upper mold base (2) through the fixing pin (9).

7. The injection mold with the ejection assembly according to claim 1, wherein the bottom end of the lower mold base (3) is fixedly connected with the base (4) through a plurality of positioning rods (18), the plurality of positioning rods (18) are fixedly connected with the lower mold base (3) through mounting holes, the bottom ends of the plurality of positioning rods (18) penetrate through the lower mold base (3) and extend downwards, the bottom ends of the plurality of positioning rods (18) are fixedly connected with the base (4) through threaded holes, the base (4) is hollow inside, one end of the base (4) is provided with an open square structure, and the bottom end of the base (4) is fixedly provided with the lower template (5) through bolts.

8. The injection mold with the ejection assembly according to claim 1, wherein a plurality of second guide sleeves (27) are arranged at equal intervals at the bottom end of the lower mold base (3), the second guide sleeves (27) are fixedly connected with the lower mold base (3) through bolts, elastic columns (13) are fixedly installed at the bottom ends of the second guide sleeves (27) through bolts, the bottom ends of the elastic columns (13) are fixedly connected with the bottom plate (10) through mounting holes, compression springs (14) are installed on the elastic columns (13), the bottom ends of the compression springs (14) are fixedly welded with the bottom plate (10), and the bottom plate (10) is fixedly connected with the base (4) through bolts.

9. The injection mold with the ejection assembly as claimed in claim 1, wherein the bottom end of the lower mold base (3) is symmetrically provided with support rods (12), the top ends of the support rods (12) are fixedly connected with the lower mold base (3) through bolts, and the bottom ends of the support rods (12) are fixedly connected with the bottom plate (10) through mounting holes.

10. The injection mold with the ejection assembly as claimed in claim 1, wherein the operation method of the injection mold specifically comprises the following steps:

firstly, an upper template (1) is fixedly connected with an upper die holder (2) through bolts, a plurality of guide posts (16) are fixedly connected with the upper die holder (2) through mounting holes, the upper die holder (2) is mounted above a lower die holder (3) through a manipulator, the guide posts (16) are fixedly connected with a first guide sleeve (15) through the mounting holes, and an injection die (6) is fixedly connected with an injection port of an injection molding machine through a hoop;

secondly, starting the injection molding machine, enabling the molten material to enter the parison (19) through the injection mold (6), and cooling the plastics injected into the upper mold base (2) and the lower mold base (3) through condensate in the cooling pipe (17) and the guide pipe (22) after injection to form plastic products;

thirdly, before the die is opened, the air cylinder (7) is started, the air cylinder (7) pushes the push rod (21) to move, the push rod (21) pushes the push block (23) to move, the push block (23) pushes the guide block (24) to move in the horizontal direction, the guide block (24) pushes the connecting shaft (38) to move, the connecting shaft (38) pushes the movable block (37) to move towards one end of the parison (19), the movable block (37) pushes the connecting part to move through the movable shaft (36), the connecting part pushes the ejection block (20) to push the upper die holder (2) upwards, and the upper die holder (2) is forced to be separated from the lower die holder (3);

fourthly, after the upper die holder (2) is ejected, the air cylinder (7) drives the push rod (21) to move, the push rod (21) drives the push block (23) to move, the push block (23) drives the guide block (24) to move to abut against the limiting block (25), the ejection force on the upper die holder (2) is cancelled by the ejection block (20), meanwhile, the guide block (24) drives the fixing block (33) to move, the fixing block (33) drives the core rod (34) to move, horizontal force is provided for the plastic product, and the plastic product is separated from the lower die holder (3).