CN111688108A - Novel multi-cavity injection mold - Google Patents
Novel multi-cavity injection mold Download PDFInfo
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- CN111688108A CN111688108A CN202010561881.XA CN202010561881A CN111688108A CN 111688108 A CN111688108 A CN 111688108A CN 202010561881 A CN202010561881 A CN 202010561881A CN 111688108 A CN111688108 A CN 111688108A
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- piston rod
- injection mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
- B29C45/062—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction carrying mould halves co-operating with fixed mould halves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
Abstract
The invention discloses a novel multi-cavity injection mold, which comprises a bottom box and a placing table, wherein a movable plate is arranged above the bottom box, a connecting block is arranged above the movable plate, ejector rods are respectively arranged at two ends of the bottom of the connecting block, a limiting sleeve is respectively arranged on the side wall of one side of each ejector rod, a second piston rod in the bottom of the connecting block is controlled to move towards the interior of a cylinder body through a second hydraulic cylinder, so that a bottom plate moves upwards, the movable plate moves upwards, an upper mold is separated from a lower mold, an insert rod is pulled out, a disc is rotated, the positions of the two lower molds are changed, a third piston rod in the bottom of the bottom, the mould does not need to be heated again when the next injection molding is carried out, so that the resources are saved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the field of mold equipment, in particular to a novel multi-cavity injection mold.
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. At present multicavity injection mold has at the bottom of work efficiency, the problem that utilization ratio of raw materials is low.
In the processing process of the existing multi-cavity injection mold, when the butt joint of an upper mold and a discharge pipe is realized, a discharge port needs to be manually butted, the problem of raw material leakage is easy to occur during feeding, the utilization rate of the raw material is low, and the raw material is inconvenient to inject into the mold; in the processing process of the existing multi-cavity injection mold, when the feeding work is carried out in the mold, the problems that the disc rotates and the positions of the lower mold and the upper mold are deviated and staggered easily occur, and the product quality is directly influenced; after the existing multi-cavity injection mold is processed, the product needs to be subjected to demolding work, the upper mold and the lower mold are difficult to separate, manual material taking is inconvenient, equipment is in a stagnation running state when the material is taken, the mold needs to be heated again when the material is injected next time, resources are wasted, and the working efficiency is low.
The Chinese patent with the publication number of CN207072090U discloses a novel multi-cavity injection mold, which comprises a front mold, a rear mold, a main runner, a sub-runner and a plurality of cavities, wherein the main runner and the sub-runner are arranged on the front mold, the cavities are arranged on the rear mold, the sub-runner is communicated with the cavities, a closing mechanism is arranged at the joint of the sub-runner and the front mold of the cavities, and a flow meter for monitoring the flow is arranged on the surface of the front mold corresponding to the position of the sub-runner; this injection mold sets up the flowmeter at the front mould to this flow that gets into the cavity in monitoring runner, and mould junction sets up closing mechanism around the subchannel, can prevent the flow to continue to get into the cavity, and closing mechanism adopts the gasbag drive closed, and two magnetic part attract mutually reset, have novel structure, practicality strong, steerable flow, the high advantage of product yield of moulding plastics. Compared with the invention, the multi-cavity injection mold has the problems that when the existing multi-cavity injection mold feeds materials into the mold in the processing process, the rotation of a disc is easy to occur, the position of a lower mold and the position of an upper mold are deviated and staggered, the product quality is directly influenced, the upper mold and the lower mold are difficult to separate, manual material taking is inconvenient, equipment is in a stagnation running state when material is taken, the mold needs to be heated again when next injection molding is carried out, resources are wasted, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a novel multi-cavity injection mold, which aims to solve the problems that in the processing process of the existing multi-cavity injection mold, when the butt joint of an upper mold and a discharge pipe is realized, a discharge port needs to be manually butted, raw materials are easy to leak during feeding, the utilization rate of the raw materials is low, and the raw materials are inconvenient to inject into the mold; in the processing process of the existing multi-cavity injection mold, when the feeding work is carried out in the mold, the problems that the disc rotates and the positions of the lower mold and the upper mold are deviated and staggered easily occur, and the product quality is directly influenced; the existing multi-cavity injection mold needs to perform demolding work on a product after processing is completed, an upper mold and a lower mold are difficult to separate, manual material taking is inconvenient, equipment is in a stagnation running state when the material is taken, the mold needs to be heated again when the material is injected next time, resources are wasted, and the problem of low working efficiency is solved.
The purpose of the invention can be realized by the following technical scheme:
a novel multi-cavity injection mold comprises a bottom box and a placing table, wherein a movable plate is arranged above the bottom box, a connecting block is arranged above the movable plate, ejector rods are respectively arranged at two ends of the bottom of the connecting block, a limiting sleeve is respectively arranged on the side wall of one side of each ejector rod, a limiting rod is respectively arranged inside each limiting sleeve, the bottom ends of the two limiting rods are fixedly arranged on the top surface of the movable plate, a fixed block is respectively arranged on the side wall of the other side of each ejector rod, a first piston rod is arranged at the bottom of each fixed block, the bottom end of each first piston rod is arranged inside a first hydraulic cylinder, the bottom end of each first hydraulic cylinder is fixedly arranged on the top surface of the movable plate, a discharging pipe is arranged on the bottom surface of the connecting block between the two ejector rods, a feeding bin is arranged on one side of the top of the discharging pipe, the middle part of the upper die is provided with a feeding hole;
the top surface of the bottom box is provided with three sliding sleeves, each sliding sleeve is internally provided with a sliding rod, the top end of each sliding rod is provided with a thread head, the three thread heads respectively penetrate through the moving plate and extend out of the moving plate, each thread head is connected with a nut through threads, the bottom of the bottom box is internally provided with a bottom plate, the bottom ends of the three sliding rods are respectively and fixedly arranged on the bottom plate, the top surface of the bottom box is provided with a disc, the disc is provided with two lower dies, one sliding rod penetrates through the middle position of the disc, the inner wall of the bottom box above the bottom plate is provided with a supporting block, the supporting block is positioned under the upper die, one side of the supporting block is provided with a second hydraulic cylinder, a second piston rod is arranged inside the second hydraulic cylinder, the top end of the second hydraulic cylinder is fixedly connected with the inner wall of the bottom box, the bottom end of, the top four corners position of fixed plate is provided with vertical pole respectively, the top of four vertical poles and the inner wall fixed connection of under casing, the bottom of four vertical poles and the top surface fixed connection of fixed plate, and the bottom of fixed plate is provided with the third pneumatic cylinder, and the inside of third pneumatic cylinder is provided with the third piston rod.
As a further scheme of the invention: the top of two ejector pins respectively with the fixed connection of connecting block, be provided with the dog on the top surface of the movable plate of every ejector pin below respectively, when the connecting block moves down, two ejector pins follow downstream, and when the bottom contact dog of ejector pin, first pneumatic cylinder stop work realized going up mould and discharging pipe butt joint work.
As a further scheme of the invention: every gag lever post is perpendicular with the top surface of movable plate respectively, and the surface of every gag lever post is the smooth surface with the inner wall contact surface of stop collar, and one side of under casing is provided with the electric cabinet, can reduce frictional force for when producing the removal between connecting block and the movable plate, can control the moving direction of movable plate, the material loading work in the later stage of being convenient for.
As a further scheme of the invention: two first pneumatic cylinders are the diagonal angle setting on the top surface of two movable plates, are provided with the gusset plate on the lateral wall of under casing one side, and the top both sides of under casing are provided with the rail guard respectively, move to cylinder body inside through two first pneumatic cylinders control its inside first piston rod simultaneously for two ejector pins remove downwards, make then the discharging pipe remove downwards, are convenient for pour into the raw materials into the mould.
As a further scheme of the invention: the top in feeding storehouse is provided with the heat preservation apron, and the one end lateral wall of heat preservation apron passes through hinge connection with the lateral wall in feeding storehouse, and the top of movable plate is provided with rings, puts into the inside back in feeding storehouse with the raw materials, impresses the raw materials in the mould through the discharging pipe, and the heat preservation apron can play the heat preservation effect.
As a further scheme of the invention: go up the feed inlet on the mould and be located the discharging pipe under, the bottom of discharging pipe is provided with the discharge gate, when the discharging pipe moves down for during the discharge gate inserts the feed inlet on the mould, alright arrange the material effect.
As a further scheme of the invention: be provided with two jacks on the top surface of disc, the inside of jack is provided with the inserted bar, can fix the position of disc through the inserted bar, and the disc rotation appears when avoiding injection molding work, avoids the position deviation of bed die and last mould to appear, influences product quality.
As a further scheme of the invention: the bottom of the bed die of disc both sides has been seted up the through-hole, the internal diameter size of through-hole is greater than the external diameter size of third piston rod, after the raw materials cooling is stereotyped, its inside second piston rod of second pneumatic cylinder control is inside to the cylinder body to be removed, make the bottom plate rebound, make the movable plate rebound, go up the mould and break away from with the bed die, the disc rotates again, the position of two bed dies is changed, its inside third piston rod rebound of third pneumatic cylinder control, it is ejecting with the inside product of bed die, the workman of being convenient for gets the material, save bed die and inside product separation time, and the work efficiency is improved.
The working method of the injection mold specifically comprises the following steps:
the method comprises the following steps: after raw materials are placed into a feeding bin, a first piston rod inside the feeding bin is controlled to move towards the inside of a cylinder body through two first hydraulic cylinders, so that two ejector rods move downwards, a discharging pipe moves downwards, the top ends of the two ejector rods are fixedly connected with a connecting block respectively, a stop block is arranged on the top surface of a moving plate below each ejector rod respectively, when the connecting block moves downwards, the two ejector rods move downwards along with the two ejector rods, when the bottom ends of the ejector rods contact the stop blocks, the first hydraulic cylinders stop working, a discharging port is inserted into a feeding port in an upper die, and butt joint work of the upper die and the discharging pipe is achieved;
step two: the second piston rod in the second hydraulic cylinder is controlled to move towards the outside of the cylinder body, so that the bottom plate moves downwards, the moving plate moves downwards, the three sliding rods slide in the sliding sleeve to limit the moving direction of the moving plate, the upper die and the lower die at the bottom of the moving plate are butted, the inserting rods are inserted into the positions of the inner fixed discs of the inserting holes, and feeding work is carried out on the die;
step three: after the raw materials are cooled and shaped, the second piston rod inside the second hydraulic cylinder is controlled to move towards the inside of the cylinder body, the bottom plate moves upwards, the moving plate moves upwards, the upper die is separated from the lower die, the insert rod is pulled out, the disc is rotated again, the positions of the two lower dies are changed, the third piston rod inside the third hydraulic cylinder is controlled to move upwards, and products inside the lower die are ejected out.
The invention has the beneficial effects that:
1. according to the invention, the two first hydraulic cylinders are used for controlling the first piston rods in the two first hydraulic cylinders to move towards the interior of the cylinder body, so that the two ejector rods move downwards, the discharge pipe moves downwards, the top ends of the two ejector rods are respectively fixedly connected with the connecting block, the top surface of the moving plate below each ejector rod is respectively provided with a stop block, when the connecting block moves downwards, the two ejector rods move downwards, when the bottom ends of the ejector rods contact the stop blocks, the first hydraulic cylinders stop working, so that the discharge hole is inserted into the feed inlet on the upper die, the butt joint work of the upper die and the discharge pipe is realized, the raw materials are conveniently injected into the die, the discharge hole does not need to be manually butted, the problem of raw material;
2. according to the invention, a second piston rod in a second hydraulic cylinder is controlled to move towards the outside of a cylinder body, so that a bottom plate moves downwards, and a moving plate moves downwards, three sliding rods slide in a sliding sleeve to limit the moving direction of the moving plate, an upper die and a lower die at the bottom of the moving plate realize butt joint work, an inserted rod is inserted into the position of an internal fixed disc of an insertion hole, feeding work is carried out in the die, the disc is prevented from rotating during injection molding work, and the position deviation of the lower die and the upper die is avoided, so that the product quality is not influenced;
3. according to the invention, the second piston rod in the cylinder body is controlled to move towards the interior of the cylinder body through the second hydraulic cylinder, so that the bottom plate moves upwards, the moving plate moves upwards, the upper die is separated from the lower die, the insertion rod is pulled out, the disc is rotated again, the positions of the two lower dies are changed, the third piston rod in the lower die is controlled to move upwards through the third hydraulic cylinder, a product in the lower die is ejected out, a worker can conveniently take materials, the separation time of the lower die and the internal product is saved, the working efficiency is improved, after the positions of the lower dies are changed, the injection molding work of the next product can be carried out, the situation that the equipment is in a stagnation running state when the materials are taken is avoided, the dies are not required.
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 view of the overall structure of a novel multi-cavity injection mold according to the present invention;
FIG. 2 is a front view of FIG. 1 in accordance with the present invention;
FIG. 3 is a side view of FIG. 1 of the present invention;
FIG. 4 is a top view of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic view showing the internal structure of the bottom case according to the present invention;
FIG. 6 is a schematic structural view of a fixing plate according to the present invention;
in the figure: 1. a bottom box; 2. a placing table; 3. an electric cabinet; 4. protecting the fence; 5. a feeding bin; 6. a heat-insulating cover plate; 7. connecting blocks; 8. a limiting rod; 9. a limiting sleeve; 10. a top rod; 11. a first piston rod; 12. a first hydraulic cylinder; 13. moving the plate; 14. a discharge pipe; 15. a disc; 16. a lower die; 17. a base plate; 18. a second piston rod; 19. a reinforcing plate; 20. a support block; 21. an upper die; 22. a slide bar; 23. a sliding sleeve; 24. a second hydraulic cylinder; 25. a screw head; 26. a nut; 27. a discharge port; 28. lifting a lifting ring; 29. a third hydraulic cylinder; 30. a fixing plate; 31. a vertical rod; 32. a third piston rod; 33. and (4) inserting the rod.
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.
As shown in fig. 1-6, a novel multi-cavity injection mold comprises a bottom case 1 and a placing table 2, wherein a movable plate 13 is arranged above the bottom case 1, a connecting block 7 is arranged above the movable plate 13, ejector rods 10 are respectively arranged at two ends of the bottom of the connecting block 7, a limiting sleeve 9 is respectively arranged on the side wall of one side of each ejector rod 10, a limiting rod 8 is arranged inside each limiting sleeve 9, the bottom ends of the two limiting rods 8 are fixedly arranged on the top surface of the movable plate 13, a fixed block is respectively arranged on the side wall of the other side of each ejector rod 10, a first piston rod 11 is arranged at the bottom of each fixed block, the bottom end of each first piston rod 11 is arranged inside a first hydraulic cylinder 12, the bottom end of each first hydraulic cylinder 12 is fixedly arranged on the top surface of the movable plate 13, a discharge pipe 14 is arranged on the bottom surface of the connecting block 7 between the two ejector rods 10, the feeding bin 5 is communicated with the inside of the discharging pipe 14, an upper die 21 is fixedly arranged at the bottom of the moving plate 13, and a feeding hole is formed in the middle of the upper die 21.
The top surface of the bottom box 1 is provided with three sliding sleeves 23, each sliding sleeve 23 is internally provided with a sliding rod 22, the top end of each sliding rod 22 is provided with a threaded head 25, the three threaded heads 25 respectively penetrate through the moving plate 13 and extend out of the moving plate 13, each threaded head 25 is respectively connected with a nut 26 through threads, the bottom of the bottom box 1 is internally provided with a bottom plate 17, the bottom ends of the three sliding rods 22 are respectively and fixedly arranged on the bottom plate 17, the top surface of the bottom box 1 is provided with a disc 15, the disc 15 is provided with two lower dies 16, one sliding rod 22 penetrates through the middle position of the disc 15, the inner wall of the bottom box 1 above the bottom plate 17 is provided with a supporting block 20, the supporting block 20 is positioned right below the upper die 21, one side of the supporting block 20 is provided with a second hydraulic cylinder 24, the second piston rod 18 is arranged inside the second hydraulic cylinder 24, and the top end of, the bottom end of the second piston rod 18 is fixedly connected with the top surface of the bottom plate 17, one side of the bottom plate 17 is provided with a fixing plate 30, four corners of the top of the fixing plate 30 are respectively provided with vertical rods 31, the top ends of the four vertical rods 31 are fixedly connected with the inner wall of the bottom box 1, the bottom ends of the four vertical rods 31 are fixedly connected with the top surface of the fixing plate 30, the bottom of the fixing plate 30 is provided with a third hydraulic cylinder 29, a third piston rod 32 is arranged inside the third hydraulic cylinder 29, when in use, after raw materials are put into the feeding bin 5, the first piston rods 11 inside the third hydraulic cylinders are controlled to move towards the inside of the cylinder body through the two first hydraulic cylinders 12, so that the two ejector rods 10 move downwards, and then the discharging pipe 14 moves downwards, the top ends of the two ejector rods 10 are respectively fixedly connected with the connecting block 7, the top surface of the movable plate 13 below, the two ejector rods 10 move downwards, when the bottom ends of the ejector rods 10 contact the stop blocks, the first hydraulic cylinder 12 stops working, so that the discharge hole 27 is inserted into the feed inlet of the upper die 21, butt joint work of the upper die 21 and the discharge pipe 14 is realized, raw materials are conveniently injected into the die, the discharge hole 27 does not need to be manually butted, the problem of raw material leakage during feeding is avoided, and the raw materials are saved; the second piston rod 18 in the second hydraulic cylinder 24 is controlled to move towards the outside of the cylinder body, so that the bottom plate 17 moves downwards, the moving plate 13 moves downwards, the three sliding rods 22 slide in the sliding sleeves 23 to limit the moving direction of the moving plate 13, the upper die 21 and the lower die 16 at the bottom of the moving plate 13 are in butt joint, the inserting rods 33 are inserted into the positions of the inner fixed disks 15 of the inserting holes, feeding work is performed in the dies, rotation of the disks 15 during injection molding work is avoided, and the position deviation of the lower die 16 and the upper die 21 is avoided, so that the product quality is influenced; after the raw materials are cooled and shaped, the second piston rod 18 in the second hydraulic cylinder 24 is controlled to move towards the inside of the cylinder body, the bottom plate 17 moves upwards, the moving plate 13 moves upwards, the upper die 21 is separated from the lower die 16, the inserted rod 33 is pulled out, the disc 15 is rotated again, the positions of the two lower dies 16 are changed, the third piston rod 32 in the third hydraulic cylinder 29 is controlled to move upwards, products in the lower dies 16 are ejected, a worker can take materials conveniently, the time for separating the lower dies 16 from the internal products is saved, and the working efficiency is improved.
The top of two ejector pins 10 respectively with the fixed connection of connecting block 7, be provided with the dog on the top surface of the movable plate 13 of every ejector pin 10 below respectively, when connecting block 7 moves down, two ejector pins 10 follow and move down, and when the bottom contact dog of ejector pin 10, first pneumatic cylinder 12 stop work, mould 21 and discharging pipe 14 butt joint work in the realization.
Every gag lever post 8 is perpendicular with the top surface of movable plate 13 respectively, and the surface of every gag lever post 8 is the smooth surface with the inner wall contact surface of stop collar 9, and one side of under casing 1 is provided with electric cabinet 3, can reduce frictional force for when producing the removal between connecting block 7 and the movable plate 13, can control the moving direction of movable plate 13, the material loading work in the later stage of being convenient for.
Two first hydraulic cylinders 12 are diagonally arranged on the top surfaces of the two moving plates 13, a reinforcing plate 19 is arranged on the side wall of one side of the bottom box 1, guard rails 4 are respectively arranged on two sides of the top of the bottom box 1, and the two first hydraulic cylinders 12 are used for controlling the first piston rods 11 inside the bottom box to move towards the inside of the cylinder body, so that the two ejector rods 10 move downwards, the discharge pipe 14 moves downwards, and raw materials can be conveniently injected into the mold.
The top in feeding storehouse 5 is provided with heat preservation apron 6, and the one end lateral wall of heat preservation apron 6 passes through hinge connection with the lateral wall in feeding storehouse 5, and the top of movable plate 13 is provided with rings 28, puts into the inside back in feeding storehouse 5 with the raw materials, in impressing the mould with the raw materials through discharging pipe 14, heat preservation apron 6 can play the heat preservation effect.
The feed inlet on the upper die 21 is located right below the discharge pipe 14, the discharge outlet 27 is arranged at the bottom end of the discharge pipe 14, and when the discharge pipe 14 moves downwards, the discharge outlet 27 is inserted into the feed inlet on the upper die 21, so that the discharge effect can be achieved.
Be provided with two jacks on the top surface of disc 15, the inside of jack is provided with inserted bar 33, can fix the position of disc 15 through inserted bar 33, avoids moulding plastics during operation disc 15 to appear rotating, avoids the position of bed die 16 and last mould 21 to appear the deviation, influences product quality.
The bottom of the lower die 16 on both sides of the disc 15 is provided with a through hole, the inner diameter of the through hole is larger than the outer diameter of the third piston rod 32, after the raw material is cooled and shaped, the second piston rod 18 inside the through hole is controlled to move towards the inside of the cylinder body through the second hydraulic cylinder 24, the bottom plate 17 moves upwards, the moving plate 13 moves upwards, the upper die 21 is separated from the lower die 16, the disc 15 is rotated again, the positions of the two lower dies 16 are changed, the third piston rod 32 inside the through hole is controlled to move upwards through the third hydraulic cylinder 29, the product inside the lower die 16 is ejected out, the material taking by workers is facilitated, the separation time of the lower die 16 and the internal product is saved, and the.
The working method of the injection mold specifically comprises the following steps:
the method comprises the following steps: after raw materials are placed in a feeding bin 5, a first piston rod 11 in the feeding bin is controlled to move towards the interior of a cylinder body through two first hydraulic cylinders 12, so that two ejector rods 10 move downwards, a discharging pipe 14 moves downwards, the top ends of the two ejector rods 10 are fixedly connected with a connecting block 7 respectively, a stop block is arranged on the top surface of a moving plate 13 below each ejector rod 10 respectively, when the connecting block 7 moves downwards, the two ejector rods 10 move downwards along with the two ejector rods 10, when the bottom ends of the ejector rods 10 contact the stop blocks, the first hydraulic cylinders 12 stop working, a discharging port 27 is inserted into a feeding port in an upper die 21, and butt joint work of the upper die 21 and the discharging pipe 14 is achieved;
step two: the second piston rod 18 in the second hydraulic cylinder 24 is controlled to move towards the outside of the cylinder body, so that the bottom plate 17 moves downwards, and then the moving plate 13 moves downwards, the three sliding rods 22 slide in the sliding sleeves 23 to limit the moving direction of the moving plate 13, so that the upper die 21 and the lower die 16 at the bottom of the moving plate 13 realize butt joint work, the inserting rod 33 is inserted into the position of the inner fixed disc 15 of the inserting hole, and feeding work is carried out on the die;
step three: after the raw materials are cooled and shaped, the second piston rod 18 in the raw materials is controlled to move towards the interior of the cylinder body through the second hydraulic cylinder 24, the bottom plate 17 moves upwards, the moving plate 13 moves upwards, the upper die 21 is separated from the lower die 16, the inserted rod 33 is pulled out, the disc 15 is rotated, the positions of the two lower dies 16 are changed, the third piston rod 32 in the lower dies is controlled to move upwards through the third hydraulic cylinder 29, and products in the lower dies 16 are ejected.
The working principle of the invention is as follows: when the feeding device is used, after raw materials are placed inside the feeding bin 5, the first piston rods 11 inside the feeding bin are controlled to move towards the inside of the cylinder body through the two first hydraulic cylinders 12, so that the two ejector rods 10 move downwards, the discharging pipe 14 moves downwards, the top ends of the two ejector rods 10 are fixedly connected with the connecting block 7 respectively, the top surface of the moving plate 13 below each ejector rod 10 is provided with a stop block respectively, when the connecting block 7 moves downwards, the two ejector rods 10 move downwards, when the bottom ends of the ejector rods 10 contact the stop blocks, the first hydraulic cylinders 12 stop working, so that the discharging port 27 is inserted into the feeding port on the upper die 21, the butt joint work of the upper die 21 and the discharging pipe 14 is realized, the raw materials are conveniently injected into the die, the discharging port 27 does not need to be manually butted, the problem of raw material leakage during feeding is avoided;
the second piston rod 18 in the second hydraulic cylinder 24 is controlled to move towards the outside of the cylinder body, so that the bottom plate 17 moves downwards, the moving plate 13 moves downwards, the three sliding rods 22 slide in the sliding sleeves 23 to limit the moving direction of the moving plate 13, the upper die 21 and the lower die 16 at the bottom of the moving plate 13 are in butt joint, the inserting rods 33 are inserted into the positions of the inner fixed disks 15 of the inserting holes, feeding work is performed in the dies, rotation of the disks 15 during injection molding work is avoided, and the position deviation of the lower die 16 and the upper die 21 is avoided, so that the product quality is influenced;
after the raw materials are cooled and shaped, the second piston rod 18 in the second hydraulic cylinder 24 is controlled to move towards the inside of the cylinder body, the bottom plate 17 moves upwards, the moving plate 13 moves upwards, the upper die 21 is separated from the lower die 16, the inserted rod 33 is pulled out, the disc 15 is rotated again, the positions of the two lower dies 16 are changed, the third piston rod 32 in the third hydraulic cylinder 29 is controlled to move upwards, products in the lower dies 16 are ejected, a worker can take materials conveniently, the time for separating the lower dies 16 from the internal products is saved, and the working efficiency is improved.
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 (9)
1. A novel multi-cavity injection mold comprises a bottom case (1) and a placing table (2), and is characterized in that a movable plate (13) is arranged above the bottom case (1), a connecting block (7) is arranged above the movable plate (13), ejector rods (10) are respectively arranged at two ends of the bottom of the connecting block (7), a limiting sleeve (9) is respectively arranged on the side wall of one side of each ejector rod (10), a limiting rod (8) is arranged inside each limiting sleeve (9), the bottom ends of the two limiting rods (8) are fixedly arranged on the top surface of the movable plate (13), a fixed block is respectively arranged on the side wall of the other side of each ejector rod (10), a first piston rod (11) is arranged at the bottom of each fixed block, the bottom end of the first piston rod (11) is arranged inside a first hydraulic cylinder (12), the bottom end of the first hydraulic cylinder (12) is fixedly arranged on the top surface of the movable plate (13), a discharge pipe (14) is arranged on the bottom surface of the connecting block (7) between the two ejector rods (10), a feeding bin (5) is arranged on one side of the top of the discharge pipe (14), the feeding bin (5) is communicated with the interior of the discharge pipe (14), an upper die (21) is fixedly arranged at the bottom of the moving plate (13), and a feeding hole is formed in the middle of the upper die (21);
the top surface of the bottom box (1) is provided with three sliding sleeves (23), each sliding sleeve (23) is internally provided with a sliding rod (22), the top end of each sliding rod (22) is provided with a threaded head (25), the three threaded heads (25) respectively penetrate through the movable plate (13) and extend out of the outer side of the movable plate (13), each threaded head (25) is respectively connected with a nut (26) through threads, the bottom box (1) is internally provided with a bottom plate (17), the bottom ends of the three sliding rods (22) are respectively and fixedly arranged on the bottom plate (17), the top surface of the bottom box (1) is provided with a disc (15), the disc (15) is provided with two lower dies (16), one sliding rod (22) penetrates through the middle position of the disc (15), the inner wall of the bottom box (1) above the bottom plate (17) is provided with a supporting block (20), and the supporting block (20) is positioned right below the upper die (21, one side of supporting shoe (20) is provided with second pneumatic cylinder (24), the inside of second pneumatic cylinder (24) is provided with second piston rod (18), the top of second pneumatic cylinder (24) and the inner wall fixed connection of under casing (1), the bottom of second piston rod (18) and the top surface fixed connection of bottom plate (17), one side of bottom plate (17) is provided with fixed plate (30), the top four corners position of fixed plate (30) is provided with vertical pole (31) respectively, the top of four vertical poles (31) and the inner wall fixed connection of under casing (1), the bottom of four vertical poles (31) and the top surface fixed connection of fixed plate (30), the bottom of fixed plate (30) is provided with third pneumatic cylinder (29), the inside of third pneumatic cylinder (29) is provided with third piston rod (32).
2. A novel multi-cavity injection mold according to claim 1, wherein the top ends of the two ejector rods (10) are fixedly connected with the connecting blocks (7), and a stopper is arranged on the top surface of the moving plate (13) below each ejector rod (10).
3. A novel multi-cavity injection mold according to claim 1, characterized in that each limiting rod (8) is perpendicular to the top surface of the moving plate (13), the contact surface between the outer surface of each limiting rod (8) and the inner wall of the limiting sleeve (9) is a smooth surface, and one side of the bottom case (1) is provided with the electric control case (3).
4. A novel multi-cavity injection mold according to claim 1, wherein the two first hydraulic cylinders (12) are diagonally arranged on the top surfaces of the two moving plates (13), the side wall of one side of the bottom case (1) is provided with a reinforcing plate (19), and the two sides of the top of the bottom case (1) are respectively provided with guard rails (4).
5. A novel multi-cavity injection mold according to claim 1, characterized in that a heat-insulating cover plate (6) is arranged at the top of the feeding bin (5), one end side wall of the heat-insulating cover plate (6) is connected with the side wall of the feeding bin (5) through a hinge, and a lifting ring (28) is arranged at the top of the moving plate (13).
6. A novel multi-cavity injection mold according to claim 1, wherein the inlet of the upper mold (21) is located directly below the outlet pipe (14), and the outlet (27) is provided at the bottom end of the outlet pipe (14).
7. A novel multi-cavity injection mold according to claim 1, wherein the top surface of the disc (15) is provided with two insertion holes, and the insertion holes are internally provided with insertion rods (33).
8. A novel multi-cavity injection mold according to claim 1, wherein the bottom of the lower mold (16) on both sides of the disc (15) is provided with a through hole, and the inner diameter of the through hole is larger than the outer diameter of the third piston rod (32).
9. A novel multi-cavity injection mold according to claim 1, characterized in that the method of operation of the injection mold comprises the following steps:
the method comprises the following steps: after raw materials are placed into a feeding bin (5), a first piston rod (11) inside the feeding bin is controlled to move towards the inside of a cylinder body through two first hydraulic cylinders (12), so that two ejector rods (10) move downwards, then a discharging pipe (14) moves downwards, the top ends of the two ejector rods (10) are fixedly connected with a connecting block (7) respectively, a stop block is arranged on the top surface of a moving plate (13) below each ejector rod (10), when the connecting block (7) moves downwards, the two ejector rods (10) move downwards, when the bottom ends of the ejector rods (10) contact the stop blocks, the first hydraulic cylinders (12) stop working, so that a discharging port (27) is inserted into a feeding port in an upper die (21), and butt joint work of the upper die (21) and the discharging pipe (14) is achieved;
step two: a second piston rod (18) inside the second hydraulic cylinder (24) is controlled to move towards the outside of the cylinder body, so that the bottom plate (17) moves downwards, the moving plate (13) moves downwards, the three sliding rods (22) slide inside the sliding sleeves (23), the moving direction of the moving plate (13) is limited, the upper die (21) and the lower die (16) at the bottom of the moving plate (13) are in butt joint, the inserting rods (33) are inserted into the positions of the inner fixed disks (15) of the inserting holes, and feeding work is carried out on the dies;
step three: after the raw materials are cooled and shaped, a second piston rod (18) in the raw materials is controlled to move towards the interior of the cylinder body through a second hydraulic cylinder (24), so that a bottom plate (17) moves upwards, a moving plate (13) moves upwards, an upper die (21) is separated from a lower die (16), an insert rod (33) is pulled out, a disc (15) is rotated, the positions of the two lower dies (16) are changed, a third piston rod (32) in the upper die is controlled to move upwards through a third hydraulic cylinder (29), and products in the lower die (16) are ejected out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561881.XA CN111688108A (en) | 2020-06-18 | 2020-06-18 | Novel multi-cavity injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561881.XA CN111688108A (en) | 2020-06-18 | 2020-06-18 | Novel multi-cavity injection mold |
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| Publication Number | Publication Date |
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| CN111688108A true CN111688108A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010561881.XA Withdrawn CN111688108A (en) | 2020-06-18 | 2020-06-18 | Novel multi-cavity injection mold |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936720A (en) * | 2021-01-30 | 2021-06-11 | 宁接桂 | Plastic mould shaping extrusion equipment |
| EP3991940A1 (en) * | 2020-11-03 | 2022-05-04 | Stefan Pfaff Werkzeug- und Formenbau GmbH Co KG | Injection device with rotary table and closing side with three sections |
| CN115157543A (en) * | 2022-07-04 | 2022-10-11 | 无锡蒙力特科技有限公司 | Batch injection molding process for plastic objects |
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| EP1551610A1 (en) * | 2002-07-19 | 2005-07-13 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Device for forming predetermined quantities of synthetic material |
| CN107030961A (en) * | 2017-06-28 | 2017-08-11 | 丰铁塑机(广州)有限公司 | A kind of LED lamp cup special injection molding |
| CN110936548A (en) * | 2019-12-13 | 2020-03-31 | 苏州拓洁环保工程有限公司 | Automatic feeding injection molding machine with adjustable inclination angle and working method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1551610A1 (en) * | 2002-07-19 | 2005-07-13 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Device for forming predetermined quantities of synthetic material |
| CN107030961A (en) * | 2017-06-28 | 2017-08-11 | 丰铁塑机(广州)有限公司 | A kind of LED lamp cup special injection molding |
| CN110936548A (en) * | 2019-12-13 | 2020-03-31 | 苏州拓洁环保工程有限公司 | Automatic feeding injection molding machine with adjustable inclination angle and working method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3991940A1 (en) * | 2020-11-03 | 2022-05-04 | Stefan Pfaff Werkzeug- und Formenbau GmbH Co KG | Injection device with rotary table and closing side with three sections |
| CN112936720A (en) * | 2021-01-30 | 2021-06-11 | 宁接桂 | Plastic mould shaping extrusion equipment |
| CN115157543A (en) * | 2022-07-04 | 2022-10-11 | 无锡蒙力特科技有限公司 | Batch injection molding process for plastic objects |
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Application publication date: 20200922 |
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