Skyside injection device and injection molding machine

Abstract

The utility model discloses a sky side injection device and an injection molding machine, and relates to the technical field of plastic molding equipment, the sky side injection device comprises a mounting base, the mounting base is arranged at the sky side position of a template; the displacement assembly and the injection assembly are mounted on the mounting base, and the displacement assembly is used for driving the injection assembly to displace in the X-axis direction and / or the Y-axis direction and / or the Z-axis direction, so that the injection assembly is connected with the glue inlet; the injection assembly is used for injecting plastic in a molten state into the forming mold through the glue inlet. The technical scheme provided by the utility model can be applied to a forming mold with a glue inlet in the sky side position, and the injection assembly can be adjusted in multiple directions to adapt to forming molds with different specifications, so that the compatibility of the injection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic forming equipment, especially to a top side injection device and injection molding machine. BACKGROUND

[0002] Injection molding machine is a kind of forming equipment that melts the plastic into various shapes of plastic products, and most of them are horizontal injection molding machines at present. In order to cooperate with horizontal injection molding machine, the current glue inlet of forming mold is mostly horizontally arranged. For double-color / double-material or multi-color / multi-material plastic products, a plurality of single-color injection molding machines are generally used to produce one by one, which makes the production cost relatively high.

[0003] In order to produce double-color / double-material or multi-color / multi-material plastic products more efficiently, some manufacturers have developed forming molds with glue inlets at the top side, that is, the forming mold is additionally provided with a glue inlet at the top side on the basis of the original horizontal glue inlet, and two or more different materials are injected into the forming mold through the horizontal glue inlet and the top side glue inlet to produce double-color / double-material or multi-color / multi-material plastic products. Therefore, a top side injection device capable of being applied to the forming mold with glue inlets at the top side is urgently needed, and the injection assembly thereof can be adjusted in multiple directions to cooperate with forming molds of different specifications, thereby improving the compatibility of the injection device.

[0004] It should be noted that the above content is only used to assist in understanding the technical scheme of the utility model, and does not mean that the above content is prior art. UTILITY MODEL CONTENT

[0005] The main purpose of the utility model is to provide a top side injection device and injection molding machine, which can be applied to the forming mold with glue inlets at the top side, and the injection assembly thereof can be adjusted in multiple directions to cope with forming molds of different specifications, thereby improving the compatibility of the injection device.

[0006] To achieve the above purpose, the utility model provides a top side injection device applied to an injection molding machine, wherein the injection molding machine comprises a mold plate, and the mold plate is used to install a forming mold, wherein the forming mold is provided with a glue inlet at the top side.

[0007] Specifically, the top side injection device comprises:

[0008] A mounting base is arranged at the top side of the mold plate.

[0009] A displacement assembly and an injection assembly are mounted on the mounting base, the displacement assembly is used to drive the injection assembly to displace along the X-axis direction and / or the Y-axis direction and / or the Z-axis direction, so as to connect the injection assembly with the resin inlet; the injection assembly is used to inject the plastic in a molten state into the forming mold through the resin inlet.

[0010] In an embodiment, the displacement assembly comprises a Z-axis translation component used to drive the injection assembly to perform a translation movement along the Z-axis direction; and / or, an X-axis translation component used to drive the injection assembly to perform a translation movement along the X-axis direction; and / or, a Y-axis translation component used to drive the injection assembly to perform a translation movement along the Y-axis direction.

[0011] In an embodiment, the Z-axis translation component comprises a first guide mechanism and a first driving mechanism; the first guide mechanism comprises two segments of first linear guides extending along the Z-axis direction, the two segments of the first linear guides are arranged in parallel on a support frame; the injection assembly is mounted in a displacement seat, the displacement seat is provided with a first guide slider, the first guide slider is in sliding connection with the first linear guides; the first driving mechanism is used to drive the displacement seat to perform a movement along the first linear guides, wherein the first driving mechanism comprises a first driving oil cylinder, the first driving oil cylinder is mounted on the support frame, and a driving end of the first driving oil cylinder is connected with the displacement seat.

[0012] In an embodiment, the X-axis translation component comprises a second guide mechanism and a second driving mechanism; the second guide mechanism comprises two segments of second linear guides extending along the X-axis direction, the two segments of the second linear guides are arranged in parallel on a mounting plate, the support frame is provided with a second guide slider, the second guide slider is in sliding connection with the second linear guides; the second driving mechanism is used to drive the support frame to perform a movement along the second linear guides, wherein the second driving mechanism comprises a second driving oil cylinder, the second driving oil cylinder is mounted on the mounting plate, and a driving end of the second driving oil cylinder is connected with the support frame.

[0013] In an embodiment, the Y-axis translation component comprises a third guide mechanism and a third driving mechanism; the third guide mechanism comprises two third linear guides arranged along the Y-axis direction, the two third linear guides are arranged in parallel on the mounting base, the mounting plate is provided with a third guide rail slider, and the third guide rail slider is in sliding connection with the third linear guides; the third driving mechanism is used for driving the mounting plate to move along the direction of the third linear guides, wherein the third driving mechanism comprises a lead screw and a lead screw nut, both ends of the lead screw are rotatably connected with bearing seats, and the bearing seats are fixedly connected with the mounting base; the lead screw nut is fixedly connected with the mounting plate through a flange seat; the lead screw nut is sleeved on the lead screw, and the lead screw nut is in threaded connection with the lead screw.

[0014] In an embodiment, the injection assembly comprises a plasticizing component, a pre-plasticizing component and an injection molding component; the plasticizing component comprises a cylinder and a screw rotatably arranged in the cylinder; the side of the cylinder is provided with a feeding hole for plastic feeding, and one end of the cylinder towards the glue inlet is provided with a glue nozzle; the pre-plasticizing component is used for driving the screw to rotate, so that the plastic moves to the glue nozzle under the pushing of the screw; and the injection molding component is used for applying a force to the plasticizing component towards the glue inlet.

[0015] In an embodiment, the pre-plasticizing component comprises a rotary motor and a first plate, the rotary motor is mounted on the first plate, and the driving end of the rotary motor is connected with the screw through a transmission shaft;

[0016] The injection molding component comprises an injection molding oil cylinder, a second plate and a third plate, wherein the second plate, the third plate and the first plate are arranged in sequence from top to bottom; the second plate is fixedly connected with the moving seat through a support rod; the first plate is in sliding connection with the support rod; the injection molding oil cylinder is mounted on the second plate, the driving end of the injection molding oil cylinder is connected with the third plate, and the third plate is fixedly connected with the second plate through a plurality of connecting rods; and the injection molding oil cylinder is used for applying a force to the plasticizing component towards the glue inlet.

[0017] In an embodiment, the top side injection device further comprises a hopper assembly; the hopper assembly comprises a sliding platform and a hopper, the hopper can slide to a first position and a second position along the sliding platform, wherein the first position of the sliding platform is provided with a feeding pipe connected with the feeding hole, and the second position of the sliding platform is provided with a cleaning pipe; when the hopper slides to the first position, the discharge end of the hopper and the feeding pipe are in communication with each other; and when the hopper slides to the second position, the discharge end of the hopper and the cleaning pipe are in communication with each other.

[0018] In an embodiment, the top side injection device comprises two or more sets of displacement assemblies and injection assemblies, each set of displacement assemblies and injection assemblies corresponding to each glue inlet of the forming mold.

[0019] To achieve the above object, the utility model provides an injection molding machine, the injection molding machine includes the top side injection device of any one in the above.

[0020] The technical scheme of the utility model sets up the mounting base at the top side position of the mold plate of the injection molding machine, and installs the displacement assembly and the injection assembly on the mounting base, wherein the displacement assembly is used for driving the injection assembly to displace along the X axis direction and / or the Y axis direction and / or the Z axis direction, so that the injection assembly can be smoothly connected with the glue inlet at the top side position of the forming mold through multi-axis movement; then the injection assembly is used for injecting the molten plastic into the forming mold through the glue inlet, so that the injection molding process of the forming mold with the glue inlet at the top side position is realized; and the injection assembly can be adjusted in multiple directions through the displacement assembly to cope with forming molds of different specifications, thereby improving the compatibility of the injection device.

[0021] In addition, since the displacement assembly and the injection assembly are installed at the top side position of the mold plate, the structure is more compact and beautiful, and the planar space of the injection molding machine is not occupied, so that the planar space occupancy rate of the injection molding machine is reduced, which is beneficial to reducing the site investment cost of enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0023] Figure 1 The overall structure schematic diagram of the top side injection device of an embodiment provided by the utility model is shown in the figure.

[0024] Figure 2 The structure schematic diagram of an embodiment of the top side injection device provided by the utility model is shown in the figure.

[0025] Figure 3 The structure schematic diagram of an embodiment of the top side injection device provided by the utility model is shown in the figure.

[0026] Figure 4 The Figure 3 The local enlarged view of A in the figure.

[0027] Figure 5The utility model provides a structure schematic drawing of injection assembly in a embodiment of the utility model provides the sky side injection device.

[0028] Figure 6 For Figure 5 The local enlarged view of B in the middle;

[0029] Figure 7 The utility model provides a structure schematic drawing of hopper assembly in a embodiment of the utility model provides the sky side injection device.

[0030] Mark explanation:

[0031] 100, template;

[0032] 200, installation base;

[0033] 300, displacement assembly; 310, displacement seat; 320, support frame; 330, mounting plate;

[0034] 400, Z axis translation part; 410, first guide mechanism; 411, first linear guide rail; 420, first drive mechanism; 421, first drive oil cylinder;

[0035] 500, X axis translation part; 510, second guide mechanism; 511, second linear guide rail; 512, second guide rail slider; 520, second drive mechanism; 521, second drive oil cylinder;

[0036] 600, Y axis translation part; 610, third guide mechanism; 611, third linear guide rail; 612, third guide rail slider; 620, third drive mechanism; 621, screw rod; 622, screw nut; 623, bearing seat; 624, flange seat; 625, adjusting wheel;

[0037] 700, injection assembly; 710, plasticizing part; 711, barrel; 7111, feeding hole; 7112, glue injection nozzle; 720, screw rod; 720, pre-plasticizing part; 721, rotary motor; 722, first plate; 730, injection molding part; 731, injection molding oil cylinder; 732, second plate; 733, third plate; 734, support rod; 735, connecting rod;

[0038] 800, hopper assembly; 810, sliding platform; 811, feeding pipe; 812, clear material pipe; 820, hopper;

[0039] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the drawings. Specific implementation

[0040] The technical solutions in the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of protection of the utility model.

[0041] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0042] In addition, it should be noted that the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the ordinary skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the utility model.

[0043] In order to produce double-color / double-material or multi-color / multi-material plastic products more efficiently, some manufacturers have developed a molding mold with a glue inlet at the top side, that is, the molding mold is additionally provided with a glue inlet at the top side on the basis of the original horizontal glue inlet, and two or more different materials are injected into the molding mold through the combination of the horizontal glue inlet and the top-side glue inlet to produce double-color / double-material or multi-color / multi-material plastic products. Therefore, a top-side injection device capable of being applied to a molding mold with a glue inlet at the top side is urgently needed, and the injection assembly thereof can be adjusted in multiple directions to cooperate with molding molds of different specifications, so as to improve the compatibility of the injection device.

[0044] In order to solve the above technical problems, the utility model provides a top-side injection device.

[0045] Please refer to Figures 1-3 In an embodiment of the utility model, the top-side injection device is applied to an injection molding machine, wherein the injection molding machine comprises a mold plate 100, and the mold plate 100 is used for installing a molding mold (not shown in the drawings), wherein the molding mold is provided with a glue inlet (not shown in the drawings) at the top side.

[0046] Specifically, the top-side injection device comprises:

[0047] The mounting base 200 is arranged at the top side of the mold plate 100.

[0048] The displacement assembly 300 and the injection assembly 700 are mounted on the mounting base 200, the displacement assembly 300 is used to drive the injection assembly 700 to displace along the X-axis direction and / or the Y-axis direction and / or the Z-axis direction, so that the injection assembly 700 is connected with the glue inlet; and the injection assembly 700 is used to inject the molten plastic into the forming mold through the glue inlet.

[0049] The technical scheme of the utility model discloses a mounting base 200 is arranged at the top side of the mold plate 100 of injection molding machine, and the displacement assembly 300 and the injection assembly 700 are mounted on the mounting base 200, wherein the displacement assembly 300 is used to drive the injection assembly 700 to displace along the X-axis direction and / or the Y-axis direction and / or the Z-axis direction, so that the injection assembly 700 can be smoothly connected with the glue inlet at the top side of the forming mold through multi-axis movement; then the molten plastic is injected into the forming mold through the glue inlet by the injection assembly 700, so that the injection molding treatment of the forming mold with the glue inlet at the top side is realized; and the injection assembly 700 can be adjusted in multiple directions through the displacement assembly 300 to cope with different specifications of forming molds, so that the compatibility of the injection device is improved.

[0050] In addition, since the displacement assembly 300 and the injection assembly 700 are mounted at the top side of the mold plate 100, the structure is more compact and beautiful, and the planar space of the injection molding machine is not occupied, so that the planar space occupancy rate of the injection molding machine is reduced, which is beneficial to reduce the site investment cost of enterprises.

[0051] As a preferred scheme of the above-mentioned embodiment, reference is made to the accompanying drawings Figures 2-4The displacement assembly 300 comprises a Z-axis translation component 400 for driving the injection assembly 700 to perform a translation movement along the Z-axis direction; and / or an X-axis translation component 500 for driving the injection assembly 700 to perform a translation movement along the X-axis direction; and / or a Y-axis translation component 600 for driving the injection assembly 700 to perform a translation movement along the Y-axis direction. In this way, the Z-axis translation component 400, the X-axis translation component 500 and the Y-axis translation component 600 are respectively used to realize the displacement of the injection assembly 700 along the X-axis direction and / or the Y-axis direction and / or the Z-axis direction, which is simple in structure and high in practicability. In actual operation, the Z-axis translation component 400, the X-axis translation component 500 and the Y-axis translation component 600 can be optionally provided in one or two or all of them, and the present application does not make specific limitation thereon. In the embodiment, the Z-axis translation component 400, the X-axis translation component 500 and the Y-axis translation component 600 are provided at the same time.

[0052] The specific structure of each translation component when the Z-axis translation component 400, the X-axis translation component 500 and the Y-axis translation component 600 are provided at the same time will be described in detail below.

[0053] Specifically, the Z-axis translation component 400 comprises a first guide mechanism 410 and a first driving mechanism 420; the first guide mechanism 410 comprises two segments of first linear guide rails 411 extending along the Z-axis direction, which are arranged in parallel on the support frame 320; the injection assembly 700 is installed in the shooting seat 310, and the shooting seat 310 is provided with a first guide rail slider (not shown in the figure), which is in sliding connection with the first linear guide rails 411; the first driving mechanism 420 is used to drive the shooting seat 310 to move along the rails of the first linear guide rails 411; in this way, the Z-axis translation component 400 is installed on the support frame 320, and the shooting seat 310 installed with the injection assembly 700 is in sliding connection with the two segments of first linear guide rails 411 extending along the Z-axis direction, so as to limit and guide the translation of the shooting seat 310 by the first linear guide rails 411; then, under the driving action of the first driving mechanism 420, the shooting seat 310 can perform a translation movement along the rails of the first linear guide rails 411, i.e. along the Z-axis direction, so as to realize the movement of the injection assembly 700 along the Z-axis direction.

[0054] The first driving mechanism 420 comprises a first driving oil cylinder 421, which is installed on the support frame 320, and the driving end of the first driving oil cylinder 421 is connected to the shooting seat 310. In this way, the first driving oil cylinder 421 is used as a power source to drive the shooting seat 310 to move, which is simple and practical. It can be understood that, based on the understanding of the technical solutions of the embodiments, other first driving mechanisms 420 except the first driving oil cylinder 421 can also be conceived without creativity and shall also belong to the protection scope of the present application.

[0055] Further, a first ball element (not shown in the drawings) is arranged in the first guide rail slider, so that the movement mode of the first guide rail slider and the first linear guide rail 411 is changed from sliding movement to rolling movement, so that the Z-axis translation movement of the shooting seat 310 is more smooth.

[0056] Further, a first electronic ruler (not shown in the drawings) can be arranged on the moving path of the shooting seat 310, and the first electronic ruler is electrically connected with the first driving oil cylinder 421; in this way, the first electronic ruler is used to measure the moving distance of the shooting seat 310 in real time, and when the shooting seat 310 moves to a specified position, the first electronic ruler sends a signal to the first driving oil cylinder 421 to stop the moving output of the first driving oil cylinder 421 to the shooting seat 310; so that the position control accuracy of the shooting seat 310 is high, and the operation is convenient and reliable.

[0057] Specifically, the X-axis translation component 500 comprises a second guide mechanism 510 and a second driving mechanism 520; the second guide mechanism 510 comprises two segments of second linear guide rails 511 extending in the X-axis direction, which are arranged in parallel on the mounting plate 330, and the support frame 320 is provided with a second guide rail slider 512 which is in sliding connection with the second linear guide rails 511; the second driving mechanism 520 is used to drive the support frame 320 to move along the rails of the second linear guide rails 511; in this way, the X-axis translation component 500 is installed on the mounting plate 330, and the support frame 320 provided with the Z-axis translation component 400 is in sliding connection with the two segments of second linear guide rails 511 extending in the X-axis direction, so as to limit and guide the translation of the support frame 320 by the second linear guide rails 511; then under the driving action of the second driving mechanism 520, the support frame 320 can move in the rails direction of the second linear guide rails 511, i.e. in the X-axis direction, so as to realize the movement of the injection assembly 700 in the X-axis direction.

[0058] The second driving mechanism 520 comprises a second driving oil cylinder 521, the second driving oil cylinder 521 is installed on the mounting plate 330, and the driving end of the second driving oil cylinder 521 is connected to the support frame 320. In this way, the second driving oil cylinder 521 is used as a power source to drive the support frame 320 to move, and the structure is simple and practical. It can be understood that, based on the understanding of the technical solutions of the embodiments, other second driving mechanisms 520 except the second driving oil cylinder 521 can also be conceived without creativity and should also belong to the protection scope of the application.

[0059] Further, the second ball element (not shown in the figure) is arranged in the second guide rail slider 512, so that the movement mode of the second guide rail slider 512 and the second linear guide rail 511 is changed from sliding movement to rolling movement, so that the X-axis translation movement of the support frame 320 is more smooth.

[0060] Further, a second electronic ruler (not shown in the figure) can be arranged on the moving path of the support frame 320, and the second electronic ruler is electrically connected with the second driving oil cylinder 521; in this way, the second electronic ruler is used to measure the moving distance of the support frame 320 in real time, when the support frame 320 moves to a specified position, the second electronic ruler sends a signal to the second driving oil cylinder 521 to stop the moving output of the second driving oil cylinder 521 to the support frame 320; so that the position control accuracy of the support frame 320 is high, and the operation is convenient and reliable.

[0061] Specifically, the Y-axis translation component 600 comprises a third guide mechanism 610 and a third driving mechanism 620; the third guide mechanism 610 comprises two sections of third linear guide rails 611 extending along the Y-axis direction, the two sections of third linear guide rails 611 are arranged in parallel on the mounting base 200, the mounting plate 330 is provided with a third guide rail slider 612, and the third guide rail slider 612 is in sliding connection with the third linear guide rail 611; the third driving mechanism 620 is used to drive the mounting plate 330 to move along the direction of the third linear guide rail 611; in this way, the mounting plate 330 on which the X-axis translation component 500 is mounted is in sliding connection with the two sections of third linear guide rails 611 extending along the Y-axis direction, so as to limit and guide the translation of the mounting plate 330 by the third linear guide rail 611; then under the driving action of the third driving mechanism 620, the mounting plate 330 can move along the direction of the third linear guide rail 611, i.e. the Y-axis direction, so as to realize the movement of the injection assembly 700 along the Y-axis direction.

[0062] The third driving mechanism 620 comprises a screw rod 621 and a screw rod nut 622. Both ends of the screw rod 621 are rotatably connected with bearing seats 623, and the bearing seats 623 are fixedly connected with the mounting base 200. The screw rod nut is fixedly connected with the mounting plate 330 through a flange seat 624. The screw rod nut 622 is sleeved on the screw rod 621, and the screw rod nut 622 is threadedly connected with the screw rod 621. In this way, the movement of the mounting plate 330 along the Y-axis direction is realized by using the screw rod transmission structure, which is simple and practical. At the same time, since the first driving oil cylinder 421 and the second driving oil cylinder 521 are both driven by oil pressure, the arrangement of the hydraulic oil circuit has certain requirements. The third driving mechanism 620 adopts the screw rod transmission structure, which can save the arrangement of the hydraulic oil circuit and save the cost. Understandably, other specific structures of the third driving mechanism 620 can be conceived without paying the creativity on the basis of understanding the technical scheme of the embodiment, which should also belong to the protection scope of the application.

[0063] Further, an adjusting wheel 625 is fixedly connected at one end of the screw rod, so that the operator can manually rotate the adjusting wheel 625 to rotate the screw rod 621, which is convenient and easy to realize the self-locking function.

[0064] Further, the third ball element (not shown in the figure) is arranged in the third guide rail sliding block 612, so that the movement mode of the third guide rail sliding block 612 and the third linear guide rail 611 is changed from sliding movement to rolling movement, so that the Y-axis translation movement of the mounting plate 330 is more smooth.

[0065] As a preferred scheme of the above embodiment, reference is made to the accompanying drawings Figures 5-6The injection assembly 700 comprises a plasticizing component 710, a pre-plasticizing component 720 and an injection component 730. The plasticizing component 710 comprises a barrel 711 and a screw 720 rotatably arranged inside the barrel 711. The barrel 711 is provided with a feeding hole 7111 for plastic feeding on the side thereof, and the barrel 711 is provided with a nozzle 7112 at the end thereof facing the feeding opening. The pre-plasticizing component 720 is used to drive the screw 720 to rotate so that the plastic is moved to the nozzle 7112 under the pushing of the screw 720. The injection component 730 is used to apply a force to the plasticizing component 710 towards the feeding opening. In this way, after the plastic enters the inner cavity of the barrel 711 through the feeding hole 7111, the pre-plasticizing component 720 drives the screw 720 to rotate so that the plastic is moved to the nozzle 7112 under the pushing of the screw 720 to perform the injection molding operation on the molding die. The barrel 711 is provided with a heating device so that the plastic is melted to form a molten state during the movement of the plastic inside the barrel 711. At the same time, considering that when the plastic in the molten state is injected into the molding die from the nozzle 7112, a reverse thrust will be generated due to the extrusion force between the plastic in the molten state and the molding die, which moves the barrel 711 away from the molding die. At this time, the injection component 730 applies a force to the plasticizing component 710 towards the feeding opening, which overcomes the reverse thrust by using the force to prevent the barrel 711 from moving away from the molding die and to ensure that the nozzle 7112 of the barrel 711 and the feeding opening of the molding die are always in close engagement.

[0066] Specifically, the pre-plasticizing component 720 comprises a rotary motor 721 and a first plate 722, the rotary motor 721 is mounted on the first plate 722, and the driving end of the rotary motor 721 is connected with the screw 720. In this way, the rotary motor 721 is used as a power source to drive the screw 720 to rotate, which has the advantages of simple structure and strong practicability.

[0067] Specifically, the injection part 730 comprises an injection oil cylinder 731, a second plate 732 and a third plate 733, wherein the second plate 732, the third plate 733 and the first plate 722 are sequentially arranged from top to bottom; the second plate 732 is fixedly connected with the shooting seat 310 through a support rod 734; the first plate 722 is slidingly connected with the support rod 734; the injection oil cylinder 731 is installed on the second plate 732, the driving end of the injection oil cylinder 731 is connected with the third plate 733, and the third plate 733 is fixedly connected with the second plate 732 through a plurality of connecting rods 735; the injection oil cylinder 731 is used to apply a force to the plasticizing part 710 towards the glue inlet. In this way, the injection oil cylinder 731 installed on the second plate 732 applies a force to the third plate 733, so that the third plate 733 applies a force to the first plate 722 through the connecting rods 735. Since the rotary motor 721 is installed in the first plate 722, and the driving end of the rotary motor 721 is connected with the plasticizing part 710, the plasticizing part 710 obtains a force towards the glue inlet, so as to ensure the smooth implementation of the technical scheme of the embodiment. The first plate 722 is slidingly connected with the support rod 734, so as to ensure the movement of the first plate 722 along the preset path under the guidance of the support rod 734.

[0068] Further, with reference to the accompanying drawings Figure 7 Further, the top side injection device further comprises a hopper assembly 800; the hopper assembly 800 comprises a sliding platform 810 and a hopper 820, the hopper 820 can slide to a first position and a second position along the sliding platform 810, wherein the first position of the sliding platform 810 is provided with a feeding pipe 811 connected with the feeding hole 7111, and the second position of the sliding platform 810 is provided with a cleaning pipe 812; when the hopper 820 slides to the first position, the discharge end of the hopper 820 is in communication with the feeding pipe 811; when the hopper 820 slides to the second position, the discharge end of the hopper 820 is in communication with the cleaning pipe 812. In this way, the hopper 820 is fixed by adopting a wire gauge structure and being provided with a positioning pin, and the friction coefficient is small. When cleaning is needed, the hopper 820 is slid to the second position of the sliding platform 810, so that the discharge end of the hopper 820 is in communication with the cleaning pipe 812, so that the plastic residual material in the hopper 820 can be quickly cleaned from the cleaning pipe 812, and the cleaning convenience is improved.

[0069] As a preferred scheme of the above-mentioned embodiments, the top-side injection device comprises two or more sets of displacement assembly 300 and injection assembly 700, each set of displacement assembly 300 and injection assembly 700 corresponding to each glue inlet of the molding die. In this way, in order to match the molding die with two or more glue inlets at the top-side position, the present embodiment correspondingly adopts two or more sets of displacement assembly 300 and injection assembly 700, so that each glue inlet can have each set of displacement assembly 300 and injection assembly 700 corresponding thereto. Each set of displacement assembly 300 and injection assembly 700 can inject plastic in different molten states into the molding die, thereby realizing the production of plastic products with double colors / double materials or multiple colors / multiple materials. In the present embodiment, two sets of displacement assembly 300 and injection assembly 700 are provided in total, and the two sets of injection assembly 700 are arranged in parallel side by side.

[0070] The present embodiment also discloses an injection molding machine comprising the top-side injection device of any of the above-mentioned embodiments. For the specific structure of the top-side injection device, please refer to the above-mentioned embodiments. Since the injection molding machine adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0071] It should be noted that other contents of the top-side injection device and the injection molding machine disclosed in the present utility model are prior art, which will not be repeated here.

[0072] The above is only an optional embodiment of the present utility model, and does not limit the patent range of the present utility model. Any direct / indirect application of the present utility model in other related technical fields is included in the patent protection range of the present utility model.

Claims

1. A top-side injection device, applied to an injection molding machine, wherein the injection molding machine includes a template for mounting a molding die, wherein the molding die has a sprue on the top side; Its features are, The top-side injection device includes: Mounting base, the mounting base is located on the top side of the template; The displacement assembly and the injection assembly are mounted on the mounting base. The displacement assembly is used to drive the injection assembly to move along the X-axis and / or Y-axis and / or Z-axis directions so that the injection assembly is connected to the injection port. The injection assembly is used to inject molten plastic into the molding die through the injection port.

2. The top-side injection device as described in claim 1, characterized in that: The displacement component includes: Z-axis translation component, the Z-axis translation component is used to drive the injection assembly to translate along the Z-axis direction; And / or, an X-axis translation component, the X-axis translation component being used to drive the injection assembly to translate along the X-axis direction; And / or, a Y-axis translation component, which is used to drive the injection assembly to translate along the Y-axis direction.

3. The top-side injection device as described in claim 2, characterized in that: The Z-axis translation component includes a first guide mechanism and a first drive mechanism; the first guide mechanism includes two first linear guide rails extending along the Z-axis direction, the two first linear guide rails being arranged parallel to each other on the support frame; the injection assembly is installed in the injection transfer seat, the injection transfer seat is provided with a first guide rail slider, the first guide rail slider being slidably connected to the first linear guide rail; the first drive mechanism is used to drive the injection transfer seat to move along the track direction of the first linear guide rail, wherein the first drive mechanism includes a first drive cylinder, the first drive cylinder being installed on the support frame, and the drive end of the first drive cylinder being connected to the injection transfer seat.

4. The top-side injection device as described in claim 3, characterized in that: The X-axis translation component includes a second guide mechanism and a second drive mechanism; the second guide mechanism includes two second linear guide rails extending along the X-axis direction, the two second linear guide rails being arranged parallel to each other on the mounting plate, the support frame being provided with a second guide rail slider, the second guide rail slider being slidably connected to the second linear guide rail; the second drive mechanism is used to drive the support frame to move along the track direction of the second linear guide rail, wherein the second drive mechanism includes a second drive cylinder, the second drive cylinder being mounted on the mounting plate, and the drive end of the second drive cylinder being connected to the support frame.

5. The top-side injection device as described in claim 4, characterized in that: The Y-axis translation component includes a third guiding mechanism and a third driving mechanism. The third guiding mechanism includes two third linear guide rails extending along the Y-axis direction. The two third linear guide rails are arranged parallel to each other on the mounting base. The mounting plate is provided with a third guide rail slider, which is slidably connected to the third linear guide rail. The third driving mechanism is used to drive the mounting plate to move along the track direction of the third linear guide rail. The third driving mechanism includes a lead screw and a lead screw nut. Bearing seats are rotatably connected to both ends of the lead screw, and the bearing seats are fixedly connected to the mounting base. The lead screw nut is fixedly connected to the mounting plate through a flange seat. The lead screw nut is fitted onto the lead screw, and the lead screw nut is threadedly connected to the lead screw.

6. The top-side injection device as described in claim 3, characterized in that: The injection assembly includes a plasticizing component, a pre-plasticizing component, and an injection molding component; The plasticizing component includes a barrel and a screw rotatably disposed inside the barrel; the side of the barrel is provided with a feed hole for feeding plastic, and the end of the barrel facing the plastic inlet is provided with a glue injection nozzle; The pre-plasticizing component is used to drive the screw to rotate, so that the plastic moves to the injection nozzle under the push of the screw; the injection molding component is used to apply a force to the plasticizing component toward the injection port.

7. The top-side injection device as described in claim 6, characterized in that: The pre-plastic component includes a rotary motor and a first plate. The rotary motor is mounted on the first plate, and the drive end of the rotary motor is connected to the screw via a transmission shaft. The injection molding component includes an injection cylinder, a second plate, and a third plate, wherein the second plate, the third plate, and the first plate are arranged sequentially from top to bottom; the second plate is fixedly connected to the injection transfer seat via a support rod; the first plate is slidably connected to the support rod; the injection cylinder is mounted on the second plate, and the drive end of the injection cylinder is connected to the third plate, the third plate being fixedly connected to the second plate via several connecting rods; the injection cylinder is used to apply a force toward the injection port to the plasticizing component.

8. The top-side injection device as described in claim 6, characterized in that: The top-side injection device further includes a hopper assembly; the hopper assembly includes a sliding platform and a hopper, the hopper being slidable along the sliding platform to a first position and a second position, wherein the first position of the sliding platform is provided with a feed pipe connected to the feed hole, and the second position of the sliding platform is provided with a cleaning pipe; when the hopper slides to the first position, the discharge end of the hopper is connected to the feed pipe; when the hopper slides to the second position, the discharge end of the hopper is connected to the cleaning pipe.

9. The top-side injection device as described in claim 1, characterized in that: The top-side injection device includes two or more sets of the displacement components and the injection components, each set of the displacement components and the injection components corresponding to each of the injection ports of the molding die.

10. An injection molding machine, characterized in that: The injection molding machine includes the top-side injection device as described in any one of claims 1 to 9.

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