Plastic structure spare is moulded plastics and is used ejecting device
Technical Field
The invention relates to the field of injection molding equipment, in particular to a piece ejecting device for injection molding of a plastic structural part.
Background
An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.
In the process of ejecting the injection molding product in the mold, the integrity of the product is protected as much as possible, so that the product has a better molding effect. However, in the prior art, the driving operation of the ejector device for ejecting the injection molding product often requires manual control, which not only makes it difficult to realize the automatic ejecting operation of the injection molding product, but also makes it difficult to eject a plurality of injection molding products at a time, thereby making the operation of operators complicated. In addition, in the injection molding process, if the cooling effect of the injection molding product is not enough, the injection molding product is easily adhered to the cavity of the mold, and at the moment, the injection molding product can be smoothly taken out only by manual operation of workers, so that the production efficiency is low, the labor cost is increased, and a piece ejecting device for plastic structural part injection molding needs to be provided for the purpose, so that the piece ejecting efficiency and the piece ejecting quality are improved, the production efficiency of the injection molding product is further improved, and the production cost of the injection molding product is reduced.
Disclosure of Invention
The invention aims to provide a jacking device for plastic structural part injection, which is used for improving jacking efficiency and jacking quality, improving production efficiency of injection products and reducing production cost of the injection products.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a piece ejecting device for plastic structural member injection molding comprises an operation table, wherein a fixing groove with an upward opening is formed in the upper end of the operation table, bearing plates are arranged on two opposite side walls of the fixing groove, a lower mold is arranged above the bearing plates, a cavity is formed in the upper surface of the lower mold, and at least one piece ejecting through hole penetrates between the bottom surface of the cavity and the lower surface of the lower mold; the tank bottom of fixed recess is provided with down electronic jar, the upper end of electronic jar is provided with down the piston rod down, the upper end of piston rod is provided with the backup pad down, the upper surface of backup pad is connected with the ejector beam, the quantity of ejector beam is the same with the quantity of ejecting through-hole, the one end that the backup pad was kept away from to the ejector beam is connected with ejecting piece, ejecting piece's external diameter and the internal diameter looks adaptation of ejecting through-hole, ejecting piece can be located ejecting through-hole and die cavity. Therefore, after the injection molding material is cooled and molded in the cavity, the lower electric cylinder can be started to enable the lower piston rod to drive the supporting plate to move upwards, meanwhile, the upwards moving supporting plate can drive the ejection block to continuously move upwards in the ejection piece through hole through the ejection rod until the injection molding cooling molded product is ejected out of the cavity, so that an operator can conveniently take the injection molding cooling molded product, and the production efficiency of the injection molding product is improved.
Furthermore, the lower die is provided with a cooling channel, a first liquid storage cabin and a second liquid storage cabin are respectively arranged at two ends of the operating platform, the first liquid storage cabin and the second liquid storage cabin are communicated through a return channel, the first liquid storage cabin is communicated with one end, close to the first liquid storage cabin, of the cooling channel through a first guide pipe, and a first liquid pump is arranged on the first guide pipe; the second liquid storage cabin is communicated with one end, far away from the first liquid storage cabin, of the cooling channel through a second guide pipe, and a second liquid pump is arranged on the second guide pipe. After the cavity is filled with the injection molding material, the first liquid pump can be started to pump the cooling liquid from the first liquid storage cabin to the interior of the cooling channel, so that the injection molding product in the cavity can be cooled, and the cooling of the injection molding product is accelerated; when the cooling liquid absorbs enough heat, the second liquid pump can be started to enable the cooling liquid absorbing heat in the cooling channel to enter the second liquid storage chamber through the second guide pipe, and meanwhile, new cooling liquid is conveniently guided into the cooling channel to cool the injection molding product, so that the production efficiency of the injection molding product is improved.
Furthermore, a first jack penetrates through the cooling channel between one end, close to the first liquid storage cabin, of the cooling channel and the upper surface of the lower die, and the first conduit is inserted into the first jack; the cooling channel is far away from and runs through between the one end in first liquid storage cabin and the upper surface of bed die has the second jack, the second pipe is pegged graft with the second jack to avoid first pipe, second pipe landing at the infusion in-process.
Furthermore, a liquid inlet penetrates through the space between the inner cavity of the first liquid storage cabin and the upper surface of the operating platform, and cooling liquid is supplemented into the first liquid storage cabin through the liquid inlet.
Furthermore, fixed plates are installed at two ends of the upper surface of the operating platform, a suspension rod is connected between the two fixed plates, the suspension rod is horizontally connected with a sliding block in a sliding mode, an upper electric cylinder is fixedly connected to the lower surface of the sliding block, an upper piston rod is arranged at the lower end of the upper electric cylinder, and an upper die is fixedly installed at one end, far away from the upper electric cylinder, of the upper piston rod. Therefore, when a product is injected, the height of the upper die can be controlled by controlling the vertical movement of the upper piston rod of the upper electric cylinder, so that the upper die is abutted against or separated from the lower die.
Furthermore, one side of one of the fixing plates, which is close to the suspension rod, is fixedly connected with a horizontal electric cylinder, the output end of the horizontal electric cylinder is provided with a horizontal piston rod, and one end, which is far away from the horizontal electric cylinder, of the horizontal piston rod is connected with the sliding block, so that when a product is injection-molded, the sliding block can be controlled to move along the length direction of the suspension rod by controlling the horizontal movement of the horizontal piston rod of the horizontal electric cylinder, and the upper die and the lower die can be ensured to be opposite.
Furthermore, a cooling cabin is arranged inside the upper die, a water inlet is formed in the upper surface of the upper die, and the water inlet is communicated with an inner cavity of the cooling cabin. After the cavity is filled with the injection molding material, the cooling liquid or ice water can be poured into the cooling cabin from the water inlet, and the cooling liquid or ice water cools the lower surface of the upper mold, so that the upper surface of the injection molding product is cooled, and the production efficiency of the injection molding product is improved.
Furthermore, a lower fixing hole is formed in the upper surface of the bearing plate, an upper fixing hole is formed in the upper surface of the lower die, the upper fixing hole is opposite to the corresponding lower fixing hole, a fastener is connected between the upper fixing hole and the corresponding lower fixing hole, and the lower die and the bearing plate are connected into a whole through the fastener.
Furthermore, the lower fixing holes are threaded connecting holes, the fasteners are bolts, and the bolts penetrate through the corresponding upper fixing holes and then are in threaded connection with the corresponding lower fixing holes.
Furthermore, the lower end of the operating platform is fixedly connected with a bottom column, one end of the bottom column, which is far away from the operating platform, is fixedly connected with a base, and the whole ejecting device is installed on a lower die base of the injection molding machine or at a specified position through the base.
According to the technical scheme, the invention has the following advantages:
1. after the cavity is filled with the injection molding material, the first liquid pump can be started to pump the cooling liquid from the first liquid storage cabin to the interior of the cooling channel, so that the injection molding product in the cavity can be cooled, and the cooling of the injection molding product is accelerated; when the cooling liquid absorbs enough heat, the second liquid pump can be started to enable the cooling liquid absorbing heat in the cooling channel to enter the second liquid storage chamber through the second guide pipe, and meanwhile, new cooling liquid is conveniently guided into the cooling channel to cool the injection molding product, so that the injection molding quality and the production efficiency of the injection molding product are improved;
2. after the cavity is filled with the injection molding material, the cooling liquid or ice water can be poured into the cooling cabin from the water inlet, and the cooling liquid or ice water is used for cooling the lower surface of the upper mold, so that the cooling of the upper surface of the injection molding product is realized, and the injection molding quality and the production efficiency of the injection molding product are further improved;
3. after the injection molding material is cooled and molded in the cavity, the lower electric cylinder can be started to enable the lower piston rod to drive the supporting plate to move upwards, meanwhile, the upwards moving supporting plate can drive the ejection block to continuously move upwards in the ejection piece through hole through the ejection rod until the injection molding cooling molded product is ejected out of the cavity, so that an operator can conveniently take the injection molding cooling molded product, and the production efficiency of the injection molding product is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of an embodiment of the present invention.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a top view of the lower mold of the present invention.
Fig. 4 is an enlarged view at B in fig. 1.
FIG. 5 is a perspective view of the slide block, the upper cylinder, the upper piston rod and the upper mold of the present invention.
In the figure: 1. the device comprises an operation table, 2, a fixing groove, 3, a bearing plate, 4, a lower fixing hole, 5, a lower die, 6, an upper fixing hole, 7, a cavity, 8, a cooling channel, 9, a fastener, 10, a top piece through hole, 11, a lower electric cylinder, 12, a lower piston rod, 13, a support plate, 14, a top rod, 15, a top block, 16, a first liquid storage cabin, 17, a backflow channel, 18, a liquid inlet, 19, a first liquid pump, 20, a first conduit, 21, a second liquid pump, 22, a second conduit, 23, a fixing plate, 24, a suspension rod, 25, a sliding block, 26, an upper electric cylinder, 27, an upper piston rod, 28, an upper die, 29, a water inlet, 30, a cooling cabin, 31, a horizontal electric cylinder, 32, a horizontal piston rod, 33, a bottom column, 34 and a base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the present invention provides a top device for injection molding of a plastic structural member, which includes an operation table 1, wherein a bottom pillar 33 is fixedly connected to a lower end of the operation table 1, a base 34 is fixedly connected to an end of the bottom pillar 33 far away from the operation table 1, and the operation table 1 is supported by cooperation between the bottom pillar 33 and the base 34.
The upper end of operation panel 1 is provided with opening fixed recess 2 up, the tank bottom of fixed recess 2 is provided with down electronic jar 11, the upper end of electronic jar 11 is provided with down piston rod 12 down, the upper end of piston rod 12 is provided with backup pad 13 down, the upper surface of backup pad 13 is connected with at least one ejector beam 14, and every ejector beam 14 keeps away from the one end of backup pad 13 and all is connected with ejecting piece 15.
Two opposite lateral walls of the fixed groove 2 are provided with bearing plates 3, and a lower die 5 is arranged above the bearing plates 3. And the upper surface of the bearing plate 3 is provided with a lower fixing hole 4, the upper surface of the lower die 5 is provided with an upper fixing hole 6, the upper fixing holes 6 are respectively arranged opposite to the corresponding lower fixing holes 4, a fastening piece 9 is connected between the upper fixing hole 6 and the corresponding lower fixing hole 4, and the fastening piece 9 can be a pin or a connecting piece such as a bolt. In addition, when the fastening member 9 is preferably a bolt, the lower fixing holes 4 are provided as screw coupling holes, and the bolt is respectively screwed with the corresponding lower fixing hole 4 after passing through the corresponding upper fixing hole 6. Thus, when the device is used, the lower die 5 can be placed on the upper surfaces of the two bearing plates 3, and then the bolts are inserted into the lower fixing holes 4 and the upper fixing holes 6 in a threaded manner, so that the lower die 5 is fixed on the upper surfaces of the bearing plates 3, and the subsequent injection molding of products is facilitated.
The upper surface of lower mould 5 is provided with die cavity 7, it has ejecting through-hole 10 to run through between the bottom surface of die cavity 7 and the lower surface of lower mould 5, ejecting through-hole 10 is the same with ejector pin 14 quantity and one-to-one setting, moreover the internal diameter of ejecting through-hole 10 equals or slightly is greater than the external diameter of ejecting block 15, ejecting block 15 can be located ejecting through-hole 10 and die cavity 7. Therefore, after the injection molding material is cooled and molded in the cavity 7, the lower electric cylinder 11 can be started to enable the lower piston rod 12 to drive the supporting plate 13 to move upwards, meanwhile, the upwards moving supporting plate 13 can drive the ejection block 15 to continuously move upwards in the ejection piece through hole 10 through the ejection rod 14 until the injection molding cooled and molded product is ejected out of the cavity 7, and therefore the injection molding material is convenient to take by operators and the production efficiency of the injection molding product is improved.
In addition, in order to improve the molding speed of the injection molding material in the cavity 7, a first liquid storage tank 16 and a second liquid storage tank are respectively arranged at two ends of the operating platform 1, cooling liquid is stored in the first liquid storage tank 16 and the second liquid storage tank, a liquid inlet 18 penetrates through the space between the inner cavity of the first liquid storage tank 16 and the upper surface of the operating platform 1, and a return channel 17 is communicated between the first liquid storage tank 16 and the second liquid storage tank. A cooling channel 8 is further arranged around the cavity 7 of the lower die 5, a first jack penetrates between one end, close to the first liquid storage tank 16, of the cooling channel 8 and the upper surface of the lower die 5, a first conduit 20 is inserted between the first jack and the first liquid storage tank 16, and a first liquid pump 19 is arranged on the first conduit 20; a second inserting hole penetrates between one end, far away from the first liquid storage cabin 16, of the cooling channel 8 and the upper surface of the lower die 5, a second guide pipe 22 is inserted between the second inserting hole and the second liquid storage cabin, and a second liquid pump 21 is arranged on the second guide pipe 22. After the injection molding product is molded, one end of the first conduit 20 can be communicated with the first jack, and then the first liquid pump 19 is started to pump the cooling liquid from the first liquid storage cabin 16 to the interior of the cooling channel 8, so that the injection molding product in the cavity 7 can be cooled, and the cooling of the injection molding product is accelerated; and after the coolant liquid absorbed sufficient heat, can start second liquid pump 21 and make the coolant liquid after the inside heat absorption of cooling passageway 8 enter into the second stock solution under the cabin through second pipe 22, also be convenient for simultaneously first pipe 20 with the leading-in cooling passageway 8 inside of new coolant liquid cool down injection moulding product to improve injection moulding product's cooling efficiency and production efficiency.
In addition, the two ends of the upper surface of the operating platform 1 are both provided with a fixing plate 23, a suspension rod 24 is connected between the two fixing plates 23, the suspension rod 24 is horizontally connected with a slide block 25 in a sliding way, the lower surface of the slide block 25 is fixedly connected with an upper electric cylinder 26, an upper piston rod 27 is arranged at the lower end of the upper electric cylinder 26, an upper die 28 is fixedly arranged at one end of the upper piston rod 27 far away from the upper electric cylinder 26, a cooling chamber 30 is arranged inside the upper die 28, a water inlet 29 is arranged on the upper surface of the upper die 28, and the water inlet 29 is communicated with the inner cavity of the cooling chamber 30, so that after the cavity 7 is filled with the injection molding material, the invention can also pour cooling liquid or ice water into the cooling cabin 30 from the water inlet 29 and cool the lower surface of the upper die 28, and then realize the cooling to the cooling of injection moulding product upper surface to the production efficiency of injection moulding product is improved. In addition, in order to move the sliding block 25 conveniently, a horizontal electric cylinder 31 is fixedly connected to one side of one of the fixing plates 23 close to the suspension rod 24, a horizontal piston rod 32 is arranged at the output end of the horizontal electric cylinder 31, and one end of the horizontal piston rod 32 far away from the horizontal electric cylinder 31 is connected with the sliding block 25. Thus, the present invention can control the slider 25 to move along the length direction of the suspension rod 24 by controlling the horizontal movement of the horizontal piston rod 32 of the horizontal cylinder 31, thereby ensuring that the upper mold 28 and the lower mold 5 can be opposed to each other.
The working principle of the ejector device for plastic structural part injection molding provided by the invention is as follows:
when the device is used, the lower die 5 is firstly placed on the upper surfaces of the two bearing plates 3, then the fastening piece 9 is spirally inserted into the lower fixing hole 4 and the upper fixing hole 6, the lower die 5 is fixed on the upper surfaces of the bearing plates 3, then the heated injection molding material is guided into the cavity 7 for molding, and meanwhile, the upper electric cylinder 26 is started to enable the upper piston rod 27 to drive the upper die 28 to move downwards until the upper piston rod abuts against the lower die 5, so that the molding of the upper surface of the injection molding product is completed.
After moulding injection moulding product, communicate the one end of first pipe 20 with the first jack of 5 upper surfaces of bed die, then start first liquid pump 19 and take out the coolant liquid from first liquid storage cabin 16 to the inside of cooling down passageway 8, make it cool off the injection moulding product inside the die cavity 7, and accelerate injection moulding product's cooling, after the coolant liquid absorbed sufficient heat, can start second liquid pump 21 and make the coolant liquid after 8 inside endotherms of cooling down passageway through entering into the second liquid storage cabin from second pipe 22, continuously cool down injection moulding product inside leading-in cooling down passageway 8 with new coolant liquid simultaneously, thereby improve injection moulding product's production efficiency. On the other hand, the present invention can also pour the cooling liquid or ice water into the cooling compartment 30 from the water inlet 29, so that the cooling liquid or ice water cools the lower surface of the upper mold 28, and further the cooling of the upper surface of the injection molding product is realized, thereby further improving the production efficiency of the injection molding product.
After the material of moulding plastics is at the inside cooling forming in die cavity 7, can start down electronic jar 11 and make lower piston rod 12 drive backup pad 13 rebound, rebound's backup pad 13 can drive ejecting block 15 through ejector pin 14 and last rebound in the inside of liftout through-hole 10, and the product after the cooling forming of will moulding plastics is ejecting from the inside of die cavity 7 up to the product of being convenient for operating personnel takes, and improves injection moulding product's production efficiency.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.