Injection molding part production equipment

Abstract

The invention discloses injection molding part production equipment, and relates to the technical field of injection molding part production, the injection molding part production equipment comprises a rack, and a mold, a material pushing mechanism, a heating device and a liquid filling device which are arranged on the rack, the mold comprises a first mold core assembly and a second mold core assembly, and the first mold core assembly is provided with a first injection molding position; the first mold core assembly can drive the first injection molding station to move between the forming station and the assembling station; the second mold core assembly is provided with a second injection molding position, and the second mold core assembly can drive the second injection molding position to move between the forming station and the assembling station; the pushing mechanism is used for driving one of the first sub-injection-molded part and the second sub-injection-molded part to move towards the other one at the assembly station; the heating device is used for heating the butt joint surface of the first sub-injection-molded part and / or the second sub-injection-molded part; and the liquid filling device is used for filling the assembled injection molding product with liquid. According to the technical scheme, the procedures of injection molding, welding sealing and liquid filling can be achieved in one device, intermediate turnover is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molded part production, and particularly to an injection molded part production device. Background Art

[0002] In related technologies, for hollow injection molded plastic products, generally, two parts are separately injection molded and then transferred to a welding device for welding and assembly; for some hollow sealing structures such as washing machine balance rings, brine needs to be filled inside, so after welding and assembly, it is also necessary to transfer to a filling device through logistics for brine filling operation. Such a method that requires transfer between various devices has the problem of low production efficiency. Summary of the Invention

[0003] The main object of the present invention is to provide an injection molded part production device, aiming to be able to realize the processes of injection molding, welding and sealing, and liquid filling in one device, without intermediate transfer processes, so as to improve production efficiency.

[0004] To achieve the above object, the injection molded part production device proposed by the present invention includes: A frame; A mold, provided on the frame; the mold includes a first mold core assembly and a second mold core assembly. The first mold core assembly is provided with a first injection position, and the first mold core assembly is configured to be able to drive the first injection position to move between a molding station and an assembly station; the second mold core assembly is provided with a second injection position, and the second mold core assembly is configured to be able to drive the second injection position to move between a molding station and an assembly station; wherein, the first injection position is used to mold a first sub-injection molded part at the molding station, and the second injection position is used to mold a second sub-injection molded part at the molding station; A pushing mechanism, provided on the frame, for driving one of the first sub-injection molded part and the second sub-injection molded part to move towards the other when the first injection position and the second injection position are at the assembly station; A heating device, provided on the frame, for heating the docking surfaces of the first sub-injection molded part and / or the second sub-injection molded part, so as to assemble the first sub-injection molded part and the second sub-injection molded part into an injection molded product; and A liquid filling device, provided on the frame, for performing a liquid filling operation on the assembled injection molded product.

[0005] In an embodiment of the present application, the mold further includes a first moving mold mechanism, and the first moving mold mechanism is configured to perform a mold closing or mold opening action with the first mold core assembly when the first injection position is at the molding station; And / or, the first moving mold mechanism is configured to perform a mold closing or mold opening action with the second mold core assembly when the second injection position is at the molding station.

[0006] In one embodiment of the present application, the first mold core assembly and the second mold core assembly are arranged opposite to each other, and the first injection molding position and the second injection molding position are configured to be in opposite positions when they are in the molding station; The first movable mold mechanism includes a movable mold part and a slider assembly transmission-connected to the movable mold part, wherein the slider assembly is located between the first mold core assembly and the second mold core assembly; the slider assembly is used to move under the drive of the movable mold part to close or open the first injection position, and to close or open the second injection position.

[0007] In one embodiment of the present application, the movable mold member includes a movable mold plate disposed on one side of the molding station and a transmission block disposed on one side of the movable mold plate, and the movable mold plate is used to drive the transmission block to move closer to or away from the molding station; The slider assembly includes two sliders that are respectively connected to the opposite side surfaces of the transmission block. When the transmission block moves closer to or away from the molding station, the two sliders can be driven to move in opposite directions to respectively close the first injection molding position and the second injection molding position, or to move toward each other to respectively disengage from the first injection molding position and the second injection molding position.

[0008] In one embodiment of the present application, the two side surfaces of the transmission block facing the first mold core assembly and the second mold core assembly are respectively provided with guiding inclined surfaces, and / or the surface of the sliding block matching with the transmission block is provided with guiding inclined surfaces; And / or, the transmission block is provided with a limiting guide rail, and the two sliding blocks are slidably matched with the corresponding limiting guide rails.

[0009] In one embodiment of the present application, the first mold core component and the second mold core component are arranged opposite to each other in the up-down direction, the first injection molding position is arranged on the lower surface of the first mold core component, the second injection molding position is arranged on the upper surface of the second mold core component, and the second injection molding position is used to be opposite to the first injection molding position; The first mold core assembly and the second mold core assembly are configured to move in a horizontal direction.

[0010] In one embodiment of the present application, the first mold core assembly includes a movable first mold core plate and a first groove member provided on the first mold core plate, wherein the first groove member forms the first injection molding position; When the first injection molding position and the second injection molding position are in the assembly station, the first groove member is used to drive the first sub-injection molding part therein to move toward the second sub-injection molding part under the drive of the pushing mechanism.

[0011] In an embodiment of the present application, the mold further includes a stationary mold base fixedly provided on the frame. The molding station is located inside the stationary mold base, and the assembly station is located outside the stationary mold base. The first mold core assembly and the second mold core assembly are movably mounted on the stationary mold base, and the first moving mold mechanism is movably connected to the stationary mold base.

[0012] In an embodiment of the present application, the mold further includes a second moving mold mechanism movably connected to the stationary mold base. Two injection molding pipes for connecting an injection molding mechanism are provided on the second moving mold mechanism, and the two injection molding pipes are respectively used to connect to the first injection position and the second injection position located at the molding station. The second moving mold mechanism is configured to drive the two injection molding pipes away from the first mold core assembly and the second mold core assembly before switching stations between the first injection position and the second injection position.

[0013] In an embodiment of the present application, a number of equal-height limit members are provided between the second moving mold mechanism and the stationary mold base to control the distance between the injection molding pipes and the corresponding mold core assemblies.

[0014] In an embodiment of the present application, two first injection positions are provided on the first mold core assembly. When one first injection position is at the molding station, the other first injection position is at the assembly station. Two second injection positions are provided on the second mold core assembly. When one second injection position is at the molding station, the other second injection position is at the assembly station.

[0015] In an embodiment of the present application, the second injection position and the first injection position are configured to be oppositely arranged at the assembly station, and the side portion of the frame corresponding to the assembly station is provided with an opening. The heating device includes a movable heating plate, and the heating plate is configured to be able to move through the opening to the area between the first injection position and the second injection position at the assembly station. The liquid filling device includes a movable liquid filling head, and the liquid filling head is configured to be able to move through the opening to between the first injection position and the second injection position to fill the assembled injection molded product with liquid.

[0016] In an embodiment of the present application, the heating device is provided on the side portion of the frame; and / or, the liquid filling device is provided on the side portion of the frame.

[0017] In the injection molding part production equipment of the technical solution of the present invention, by arranging a mold, a material pushing mechanism, a heating device and a liquid filling device on the frame, the mold has a molding station and an assembly station. The first mold core assembly and the second mold core assembly of the mold can respectively mold the first sub-injection molding part and the second sub-injection molding part at the molding station, and then move the first sub-injection molding part and the second sub-injection molding part to the assembly station for assembly sealing and liquid filling operations. Thus, processes such as two semi-finished product injection moldings, assembling and sealing two semi-finished products into a ring structure with a hollow cavity, and liquid filling operation into the hollow cavity of the ring structure can be realized in the same equipment, without intermediate turnover processes, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of one perspective of the injection molding part production equipment of the present invention; Figure 2 It is a schematic structural diagram of another perspective of the injection molding part production equipment of the present invention; Figure 3 It is a schematic diagram of the positions of the molding station and the assembly station in the embodiment of the present invention; Figure 4 For the mold core assembly in the Figure 3 Structural schematic diagram in the mold closing state of the position; Figure 5 For Figure 4 Structural schematic diagram when the static mold frame and the second moving mold structure are hidden in; Figure 6 For Figure 4 Side view of the embodiment; Figure 7 Structural schematic diagram when the second moving mold mechanism leaves the static mold frame; Figure 8 For Figure 7 Side view of the embodiment with the static mold frame hidden; Figure 9 For Figure 8 Local enlarged view at M in; Figure 10 Structural schematic diagram of the first moving mold mechanism in the mold opening state; Figure 11 For Figure 10 Structural schematic diagram when the static mold frame and the second moving mold structure are hidden in the embodiment; Figure 12 In the Figure 10 state, the schematic structural diagram of the mold core assembly after switching workstations; Figure 13 is Figure 12 the top view of the embodiment; Figure 14 is the schematic position diagram of the molding station and the assembly station when the mold core assembly is in the Figure 12 position; Figure 15 is the schematic structural diagram of the mold core assembly in the Figure 14 position under the mold closing state; Figure 16 is Figure 15 the schematic structural diagram of the embodiment when the static mold frame and the second moving mold structure are hidden; Figure 17 is Figure 15 the schematic structural diagram of the embodiment of the heating device heating the butt joint surface of two sub-injection molded parts in the Figure 18 state; Figure 19 is the schematic structural diagram when the two sub-injection molded parts are assembled and sealed after heating; Figure 20 is the schematic structural diagram after the liquid filling operation is completed and the product is taken out.

[0020] Explanation of the reference numerals in the drawings: 100, frame; 200, mold; 210, first mold core assembly; 211, first mold core plate; 212, first groove part; 2101, first injection position; 220, second mold core assembly; 2201, second injection position; 230, first moving mold mechanism; 231, moving mold part; 2311, moving mold plate; 2312, transmission block; 232, slider assembly; 2321, slider; 233, limit guide rail; 240, static mold frame; 250, second moving mold mechanism; 260, injection pipeline; 270, guide shaft; 300, pushing mechanism; 400, heating device; 500, liquid filling device; 600, injection mechanism; A1, first sub-injection molded part; A2, second sub-injection molded part; B1, molding station; B2, assembly station.

[0021] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0024] At the same time, the meaning of "and / or" or "and / or" that appears throughout the text is to include three scenarios. Taking "A and / or B" as an example, it includes the scenario of A, or the scenario of B, or the scenario where A and B are satisfied simultaneously.

[0025] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0026] The present invention provides an injection molding part production device for manufacturing hollow structures, aiming to be able to realize processes such as semi-finished product injection molding, assembly and sealing, and liquid filling operations on the same device, without intermediate turnover processes, and improve production efficiency. It can be understood that the hollow structures manufactured by this injection molding part production device are not limited to a certain specific product and can be a washing machine balance ring or other structures, etc. For the convenience of understanding, the following takes the manufacture of a washing machine balance ring as an example to illustrate the specific structure of this injection molding part production device.

[0027] As Figures 1 to 3 、 Figures 17 to 20 shown, this injection molding part production device includes a frame 100, a mold 200 arranged on the frame 100, a pushing mechanism 300, a heating device 400, and a liquid filling device 500.

[0028] The mold 200 includes a first mold core assembly 210 and a second mold core assembly 220. The first mold core assembly 210 is provided with a first injection position 2101, and the first mold core assembly 210 is configured to drive the first injection position 2101 to move between the molding station B1 and the assembly station B2; the second mold core assembly 220 is provided with a second injection position 2201, and the second mold core assembly 220 is configured to drive the second injection position 2201 to move between the molding station B1 and the assembly station B2; wherein, the first injection position 2101 is used to mold the first sub-injection part A1 at the molding station B1, and the second injection position 2201 is used to mold the second sub-injection part A2 at the molding station B1; The pushing mechanism 300 is used to drive one of the first sub-injection part A1 and the second sub-injection part A2 to move towards the other when the first injection position 2101 and the second injection position 2201 are at the assembly station B2; The heating device 400 is used to heat the docking position of the first sub-injection part A1 and / or the second sub-injection part A2, so as to assemble the first sub-injection part A1 and the second sub-injection part A2 into the injection product A; The liquid filling device 500 is used to perform a liquid filling operation on the assembled injection product A.

[0029] In this embodiment, the frame 100 serves to support and install various components such as the mold 200, the pushing mechanism 300, the heating device 400, and the liquid filling device 500, so that the various components are integrated on the frame 100 without the need to transfer the semi-finished products midway.

[0030] Since the balance ring is an annular structure with a hollow sealed cavity, during manufacturing, at least two semi-finished products (such as two semi-ring structures) will be manufactured first and then assembled into an annular structure with a hollow cavity. Thus, the mold 200 in this embodiment can respectively form the first sub-injection molded part A1 and the second sub-injection molded part A2 (two semi-finished products), and move to the assembly station B2 for subsequent assembly work. Specifically, the mold 200 includes a movable first mold core assembly 210 and a second mold core assembly 220. The first mold core assembly 210 is provided with a first injection position 2101, and the second mold core assembly 220 is provided with a second injection position 2201. The first mold core assembly 210 can drive the first injection position 2101 to move between the molding station B1 and the assembly station B2, and the second mold core assembly 220 can drive the second injection position 2201 to move between the molding station B1 and the assembly station B2. Thus, during actual operation, the first mold core assembly 210 can first drive the first injection position 2101 to move to the molding station B1 to communicate with the injection mechanism 600 to form the first sub-injection molded part A1 (such as the upper ring or left ring of the balance ring), and the second mold core assembly 220 can first drive the second injection position 2201 to move to the molding station B1 to communicate with the injection mechanism 600 to form the second sub-injection molded part A2 (such as the lower ring or right ring of the balance ring). Then, the first mold core assembly 210 drives the first injection position 2101 with the first sub-injection molded part A1 to move to the assembly station B2, and the second mold core assembly 220 drives the second injection position 2201 with the second sub-injection molded part A2 to move to the assembly station B2 for subsequent assembly operations. It should be noted that the molding station B1 in this embodiment is not limited to a specific position. The molding station B1 can include the position of the first injection position 2101 for forming the first sub-injection molded part A1 and the position of the second injection position 2201 for forming the second sub-injection molded part A2. The molding station B1 of the first injection position 2101 can be the same as or different from the molding station B1 of the second injection position 2201. The actions of the two for the molding process can be linked or independent of each other, and they can be carried out synchronously or asynchronously. Optionally, the moving mode of the first mold core assembly 210 can be sliding or rotating, and the moving mode of the second mold core assembly 220 can be sliding or rotating. The movements of the first mold core assembly 210 and the second mold core assembly 220 can be driven and realized by a driving device. The specific structure of the driving device can be determined according to the actual situation. For example, it can be a motor driving device, a cylinder or an oil cylinder driving device, or some other driving devices, etc.

[0031] After the first injection position 2101 drives the first sub-injection part A1 to move to the assembly station B2 and the second injection position 2201 drives the second sub-injection part A2 to move to the assembly station B2, the pushing mechanism 300 starts to act, which is used to drive one of the first sub-injection part A1 and the second sub-injection part A2 to move towards the other, so that the two semi-finished products can approach and dock. It can be understood that the specific structure of the pushing mechanism 300 can be determined according to the actual situation. For example, it can be a cylinder push rod structure, a motor-driven screw nut structure or some other structures, etc. The purpose of the pushing mechanism 300 is to enable the first sub-injection part A1 and the second sub-injection part A2 to approach each other. It can be to push the first sub-injection part A1 towards the second sub-injection part A2, or to push the second sub-injection part A2 towards the first sub-injection part A1.

[0032] When the distance between the first sub-injection part A1 and the second sub-injection part A2 is getting closer and closer, the heating device 400 can heat and melt the docking surfaces of the first sub-injection part A1 and the second sub-injection part A2, so that when the first sub-injection part A1 and the second sub-injection part A2 are assembled by docking, they can be hermetically fixed into a ring structure with a hollow cavity. Exemplarily, the heating device 400 can be a heating plate. When the pushing mechanism 300 pushes the first sub-injection part A1 towards the second sub-injection part A2, the heating plate can be moved between the second sub-injection part A2 and the first sub-injection part A1, so that the two opposite surfaces of the heating plate are respectively attached to and heat the docking surface of the second sub-injection part A2 and the docking surface of the first sub-injection part A1. After heating, the heating plate withdraws from between the second sub-injection part A2 and the first sub-injection part A1, and the pushing mechanism 300 continues to push the first sub-injection part A1 to be fixedly sealed with the second sub-injection part A2.

[0033] After the first sub-injection molded part A1 and the second sub-injection molded part A2 are assembled and sealed, the liquid filling device 500 starts to operate, which is used to pour liquid (such as brine) into the inner cavity of the assembled ring structure, so as to realize the process of filling brine into the balance ring. It can be understood that the assembly process and the liquid filling process in this embodiment are both completed at the assembly station B2 of this injection molded part production equipment. That is to say, when performing the assembly and liquid filling operations, the semi-finished product is still in the corresponding first mold core assembly 210 or the second mold core assembly 220 in the mold 200, and there is no need to transfer the semi-finished product. Only the heating plate of the heating device 400 and the liquid filling head of the liquid filling device 500 need to be moved to the assembly station B2 for corresponding operations. Compared with the related art in which the semi-finished product is transported to a dedicated welding equipment for assembly or transported to a dedicated brine filling equipment for brine filling, the product in this embodiment is already positioned when it is molded, and the need for special positioning or flipping operations on the product at the welding equipment or brine filling equipment is eliminated, simplifying the process flow and improving the production efficiency. In addition, in some other embodiments, other auxiliary devices such as an ultrasonic welding device can be provided on the frame 100 to seal the liquid filling port after the liquid filling operation.

[0034] It should be noted that the specific position of the heating device 400 in this embodiment can be determined according to the actual situation. For example, it can be set above, on the side or below the frame 100, etc. When the first injection position 2101 drives the first sub-injection molded part A1 to move to the assembly station B2, and the second injection position 2201 drives the second sub-injection molded part A2 to move to the assembly station B2, the first sub-injection molded part A1 and the second sub-injection molded part A2 are spaced opposite to each other, and the heating plate of the heating device 400 can move between the first injection position 2101 and the second injection position 2201 to facilitate heating the mating surfaces of the first sub-injection molded part A1 and the second sub-injection molded part A2. Optionally, the heating device 400 is located on the side of the frame 100, which is convenient to extend into the assembly station B2 or withdraw from the assembly station B2 through the open part on the side of the frame 100.

[0035] The specific position of the liquid filling device 500 in this embodiment can also be determined according to the actual situation. For example, it can be set above, on the side or below the frame 100, etc. When the heating device 400 withdraws from between the first injection position 2101 and the second injection position 2201, and the first sub-injection molded part A1 and the second sub-injection molded part A2 are assembled, the liquid filling head of the liquid filling device 500 can move to the assembly station B2 to fill the inner cavity of the assembled product with liquid. Optionally, the liquid filling device 500 is located on the side of the frame 100, which is convenient to extend into the assembly station B2 or withdraw from the assembly station B2 through the open part on the side of the frame 100.

[0036] It can be seen that in the injection molding part production equipment of the technical solution of the present invention, by arranging a mold 200, a material pushing mechanism 300, a heating device 400 and a liquid filling device 500 on a frame 100, the mold 200 has a molding station B1 and an assembly station B2. The first mold core assembly 210 and the second mold core assembly 220 of the mold 200 can respectively mold a first sub-injection molding part A1 and a second sub-injection molding part A2 at the molding station B1, and then move the first sub-injection molding part A1 and the second sub-injection molding part A2 to the assembly station B2 for assembly sealing and liquid filling operations. Thus, processes such as two semi-finished product injection molding, assembling and sealing two semi-finished products into a ring structure with a hollow cavity, and liquid filling into the hollow cavity of the ring structure can be realized in the same device, without intermediate turnover processes, improving production efficiency.

[0037] Please refer to Figures 4 to 6 and Figure 10 and Figure 11 , in an embodiment of the present application, the mold 200 further includes a first moving mold mechanism 230, and the first moving mold mechanism 230 is configured to perform a mold closing or mold opening action with the first mold core assembly 210 when the first injection position 2101 is at the molding station B1.

[0038] It can be understood that the first moving mold mechanism 230 can move relative to the first mold core assembly 210. When the first mold core assembly 210 drives the first injection position 2101 to move to the molding station B1, the first moving mold mechanism 230 can move to perform mold closing cooperation with the first mold core assembly 210 to close the first injection position 2101 to form a closed first injection cavity for injecting molding materials and holding pressure to mold the first sub-injection molding part A1; then the first moving mold mechanism 230 and the first mold core assembly 210 are opened to separate from the first sub-injection molding part A1, avoiding interference with the movement of the first mold core assembly 210, so that the first mold core assembly 210 can smoothly drive the first sub-injection molding part A1 to move to the assembly station B2.

[0039] Please refer to Figures 4 to 6 and Figure 10 and Figure 11 , in an embodiment of the present application, the first moving mold mechanism 230 is configured to perform a mold closing or mold opening action with the second mold core assembly 220 when the second injection position 2201 is at the molding station B1.

[0040] It can be understood that the first movable mold mechanism 230 can move relative to the second mold core assembly 220. When the second mold core assembly 220 drives the second injection molding position 2201 to move to the molding station B1, the first movable mold mechanism 230 can move to cooperate with the second mold core assembly 220 to close the second injection molding position 2201 to form a closed second injection molding cavity for injecting molding material and maintaining pressure to mold the second sub-injection molding part A2; then the first movable mold mechanism 230 and the second mold core assembly 220 open the mold to separate the second sub-injection molding part A2, avoid interfering with the movement of the second mold core assembly 220, so that the second mold core assembly 220 can smoothly drive the second sub-injection molding part A2 to move to the assembly station B2.

[0041] It should be noted that the first movable mold mechanism 230 can simultaneously close or open the first mold core assembly 210 and the second mold core assembly 220, or can also close or open the first mold core assembly 210 and the second mold core assembly 220 independently.

[0042] See also Figures 4 to 6 as well as Figure 10 and Figure 11 In order to improve production efficiency, in one embodiment of the present application, the first mold core assembly 210 and the second mold core assembly 220 are arranged opposite to each other, and the first injection position 2101 and the second injection position 2201 are configured to be in relative positions when in the molding station B1; the first movable mold mechanism 230 includes a movable mold part 231 and a slider assembly 232 that is transmission-connected to the movable mold part 231, and the slider assembly 232 is located between the first mold core assembly 210 and the second mold core assembly 220; the slider assembly 232 is used to move under the drive of the movable mold part 231 to close or open the first injection position 2101, and close or open the second injection position 2201.

[0043] With such a design, when the first movable mold mechanism 230 moves, the first mold core assembly 210 and the second mold core assembly 220 can be closed or opened at the same time, thereby shortening the waiting time and accelerating the production cycle. Specifically, the first injection molding position 2101 is disposed on the surface of the first mold core assembly 210 facing the second mold core assembly 220, and the second injection molding position 2201 is disposed on the surface of the second mold core assembly 220 facing the first mold core assembly 210. When the first injection molding position 2101 and the second injection molding position 2201 are in the molding station B1, the first injection molding position 2101 and the second injection molding position 2201 are disposed in a relative position, that is, the opening of the first injection molding position 2101 is opposite to the opening of the second injection molding position 2201. On this basis, by setting the slider assembly 232 at the molding station B1 between the first mold core assembly 210 and the second mold core assembly 220, when the first injection molding station 2101 and the second injection molding station 2201 are moved to the molding station B1, the slider assembly 232 is between the first injection molding station 2101 and the second injection molding station 2201. At this time, the slider assembly 232 can be driven to move by the movable mold 231 (mold closing action) to simultaneously close the first injection molding station 2101 and the second injection molding station 2201 to form the first injection cavity and the second injection cavity, thereby realizing the injection molding process; after the first sub-injection molding part A1 and the second sub-injection molding part A2 are formed, the slider assembly 232 is driven to move by the movable mold 231 (mold opening action) to disengage from the first injection molding station 2101 and the second injection molding station 2201, so as to facilitate the subsequent first mold core assembly 210 and the second mold core assembly 220 to move the first sub-injection molding part A1 and the second sub-injection molding part A2 to the assembly station B2.

[0044] Specifically, see Figures 4 to 6 as well as Figure 10 and Figure 11 The movable mold 231 includes a movable mold plate 2311 arranged on one side of the molding station B1 and a transmission block 2312 arranged on one side of the movable mold plate 2311. The movable mold plate 2311 is used to drive the transmission block 2312 to move closer to or away from the molding station B1; the slider assembly 232 includes two sliders 2321 respectively connected to the opposite side surfaces of the transmission block 2312. When the transmission block 2312 moves closer to or away from the molding station B1, the two sliders 2321 can be driven to move in opposite directions to respectively close the first injection molding station 2101 and the second injection molding station 2201, or to move towards each other to respectively disengage from the first injection molding station 2101 and the second injection molding station 2201.

[0045] It can be understood that the two sliders 2321 are respectively arranged on the opposite sides of the transmission block 2312, that is, one slider 2321 is located between the transmission block 2312 and the first mold core assembly 210, and the other slider 2321 is located between the transmission block 2312 and the second mold core assembly 220. When the transmission block 2312 moves close to the molding station B1, it can push the two sliders 2321 respectively towards the first mold core assembly 210 and the second mold core assembly 220, so that the two sliders 2321 can respectively close the first injection position 2101 and the second injection position 2201 to realize the mold closing action; after the first sub-injection part A1 and the second sub-injection part A2 are molded, the transmission block 2312 moves away from the molding station B1 and pulls the two sliders 2321 towards the middle, so that the two sliders 2321 are respectively separated from the first injection position 2101 and the second injection position 2201 to realize the demolding action.

[0046] Optionally, the moving template 2311 and the transmission block 2312 can be an integrally formed structure.

[0047] It should be noted that in addition to power transmission, the transmission between the transmission block 2312 and the two sliders 2321 also has a commutation function. The moving direction of the transmission block 2312 is perpendicular to the moving directions of the two sliders 2321. Thus, the molding parting surface is parallel to the moving direction of the transmission block 2312, that is, the molding parting surface is parallel to the mold opening direction, which can reduce the operation difficulty and improve the accuracy.

[0048] Specifically, the two side surfaces of the transmission block 2312 facing the first mold core assembly 210 and the second mold core assembly 220 are respectively provided with guiding inclined surfaces, and / or the surfaces of the sliders 2321 cooperating with the transmission block 2312 are provided with guiding inclined surfaces.

[0049] In this embodiment, the commutation transmission function between the transmission block 2312 and the slider 2321 is realized by arranging guiding inclined surfaces on its own structure, without additionally arranging a special commutation driving structure, which simplifies the structural design and saves the material cost. Optionally, the transmission block 2312 can be a trapezoidal block with two guiding inclined surfaces. The large end of the transmission block 2312 is connected to the moving template 2311, and the small end extends between the two sliders 2321; the slider 2321 can be a wedge-shaped block with a guiding inclined surface on one side.

[0050] Furthermore, the transmission block 2312 is provided with limiting guide rails 233, and the two sliders 2321 are slidably matched with the corresponding limiting guide rails 233.

[0051] With such a setting, the guiding and limiting effects on the movement of the two sliders 2321 are realized through the limiting guide rails 233, which can further improve the stability of the sliders 2321 during the movement, and at the same time can improve the position accuracy during the mold closing and mold opening processes of the mold 200 and improve the product yield.

[0052] Please refer to Figures 4 to 6 and Figures 10 to 14 In an embodiment of the present application, the first mold core assembly 210 and the second mold core assembly 220 are disposed opposite to each other at an interval in the vertical direction. The first injection position 2101 is provided on the lower surface of the first mold core assembly 210, and the second injection position 2201 is provided on the upper surface of the second mold core assembly 220. The second injection position 2201 is configured to be opposite to the first injection position 2101. The first mold core assembly 210 and the second mold core assembly 220 are configured to move in the horizontal direction.

[0053] By disposing the first mold core assembly 210 and the second mold core assembly 220 opposite to each other at an interval in the vertical direction, the first injection position 2101 and the second injection position 2201 are also disposed opposite to each other in the vertical direction during the molding process. At this time, the slider assembly 232 is located between the first injection position 2101 and the second injection position 2201. When the two sliders 2321 are separated from the first injection position 2101 and the second injection position 2201 respectively, the docking surface of the first sub-injection part A1 located at the first injection position 2101 is disposed downward, and the docking surface of the second sub-injection part A2 located at the second injection position 2201 is disposed upward. Thus, when the first mold core assembly 210 and the second mold core assembly 220 move the first sub-injection part A1 and the second sub-injection part A2 to the assembly station B2, the docking surface of the first sub-injection part A1 and the docking surface of the second sub-injection part A2 can be disposed face to face. Therefore, it is more convenient for the pushing mechanism 300 to push the first sub-injection part A1 to the second sub-injection part A2 for assembly. With such a design, the annular structure after assembly is still within the second injection position 2201, that is, the annular structure is in a flat state, and the liquid filling port of the annular structure is located on the upper surface of the annular structure, which is more convenient for liquid filling operation. Compared with the related art in which the annular structure after assembly is in a vertical state, in this embodiment, there is no need to flip the annular structure, reducing the process and further improving the production efficiency.

[0054] Please refer to Figures 15 to 20 In an embodiment of the present application, the first mold core assembly 210 includes a movable first mold core plate 211 and a first groove member 212 provided on the first mold core plate 211. The first groove member 212 forms the first injection position 2101. When the first injection position 2101 and the second injection position 2201 are at the assembly station B2, the first groove member 212 is configured to drive the first sub-injection part A1 therein to move toward the second sub-injection part A2 under the drive of the pushing mechanism 300.

[0055] It can be understood that the first type of groove member 212 functions to form the first sub-injection molded part A1 and to carry the first sub-injection molded part A1 to move towards the second sub-injection molded part A2. In this embodiment, the first mold core assembly 210 is located above the second mold core assembly 220. The first type of groove member 212 is embedded in the first mold core plate 211, and the first injection position 2101 is arranged in an inverted buckle shape on the lower surface of the first mold core plate 211. When the first mold core plate 211 drives the first sub-injection molded part A1 to move to the assembly station B2, the pushing mechanism 300 is correspondingly located above the first type of groove member 212, and then the first type of groove member 212 can be directly pushed to drive the first sub-injection molded part A1 to move downward to the second sub-injection molded part A2 for subsequent welding, assembly and sealing processes. In this embodiment, the pushing mechanism 300 drives the first sub-injection molded part A1 to move downward through the first type of groove member 212, rather than directly pushing the first sub-injection molded part A1 to move downward. Such a design can avoid deformation and breakage of the first sub-injection molded part A1 during the downward movement, ensure the docking accuracy between the first sub-injection molded part A1 and the second sub-injection molded part A2, improve the assembly accuracy of the two, and improve the product yield.

[0056] Please refer to Figures 3 to 6 and Figures 10 to 14 , in an embodiment of the present application, the mold 200 further includes a stationary mold base 240 fixedly arranged on the frame 100. The molding station B1 is located inside the stationary mold base 240, the assembly station B2 is located outside the stationary mold base 240. The first mold core assembly 210 and the second mold core assembly 220 are movably installed on the stationary mold base 240, and the first moving mold mechanism 230 is movably connected to the stationary mold base 240.

[0057] In this embodiment, the stationary mold base 240 is fixedly arranged on the frame 100, and functions to support and install various components such as two mold core assemblies, the first moving mold mechanism 230, the pushing mechanism 300, etc. The molding station B1 is located inside the stationary mold base 240, and the assembly station B2 is located outside the stationary mold base 240. It can be understood that the first mold core assembly 210 and the second mold core assembly 220 can move relative to the stationary mold base 240, driving the first injection position 2101 and the second injection position 2201 to move between the inside of the stationary mold base 240 and the outside of the stationary mold base 240. By arranging the molding station B1 inside the stationary mold base 240, it is convenient for the injection molding pipeline 260 to inject materials into the first injection position 2101 and the second injection position 2201 for molding; by arranging the assembly station B2 outside the stationary mold base 240, sufficient operating space is provided for the pushing mechanism 300, the heating device 400 and the liquid filling device 500, avoiding interference between the actions of various components and the stationary mold base 240.

[0058] Specifically, the first movable mold mechanism 230 is located on the side of the static mold frame 240 where the molding station B1 is set. The first movable mold mechanism 230 can move close to or away from the static mold frame 240 to achieve mold closing or mold opening. The moving direction of the first movable mold mechanism 230 is perpendicular to the moving direction of the first mold core assembly 210 and the second mold core assembly 220.

[0059] Optionally, the movable mold plate 2311 of the first movable mold mechanism 230 is connected to the static mold frame 240 via a guide shaft 270 to ensure the position accuracy of mold closing and opening.

[0060] See also Figures 7 to 9 In one embodiment of the present application, the mold 200 also includes a second movable mold mechanism 250 movably connected to the static mold frame 240, and the second movable mold mechanism 250 is provided with two groups of injection pipes 260 for connecting to the injection molding mechanism, and the two groups of injection pipes 260 are respectively used to connect to the first injection molding position 2101 and the second injection molding position 2201 located at the molding station B1; the second movable mold mechanism 250 is configured to drive the two groups of injection pipes 260 to separate from the first mold core assembly 210 and the second mold core assembly 220 before the first injection molding position 2101 and the second injection molding position 2201 switch positions.

[0061] It can be understood that when the mold 200 is in the mold closing state, the second movable mold mechanism 250 is abutted against the static mold frame 240, and the two groups of injection molding pipes 260 on the second movable mold mechanism 250 are respectively connected to the first injection molding position 2101 and the second injection molding position 2201 located at the molding station B1, and the two groups of injection molding pipes 260 are connected to the injection molding mechanism 600 to realize injection. At this time, the two groups of injection molding pipes 260 are respectively connected to the first mold core assembly 210 and the second mold core assembly 220; after the first sub-injection molded part A1 and the second sub-injection molded part A2 are molded, before the station needs to be switched, the second movable mold mechanism 250 moves away from the static mold frame 240 to drive the two groups of injection molding pipes 260 to disengage from the first mold core assembly 210 and the second mold core assembly 220, so as to prevent the first mold core assembly 210 and the second mold core assembly 220 from interfering with the injection molding pipes 260 and causing damage during movement.

[0062] Optionally, the second movable mold mechanism 250 can be located on the side of the static mold frame 240 away from the first movable mold mechanism 230. During the mold opening action, the second movable mold mechanism 250 can be separated from the static mold frame 240 first, so that the injection pipe 260 is separated from the first mold core assembly 210 and the second mold core assembly 220; then the first movable mold mechanism 230 is separated from the static mold frame 240, so that the two sliders 2321 open the first injection position 2101 and the second injection position 2201; then the first mold core assembly 210 and the second mold core assembly 220 respectively drive the first sub-injection molded part A1 and the second sub-injection molded part A2 to move to the assembly station B2 for subsequent processes.

[0063] Optionally, the second moving die mechanism 250 is connected to the stationary die holder 240 through a guiding shaft 270 to ensure the position accuracy of mold closing and mold opening. Optionally, the first moving die mechanism 230 and the second moving die mechanism 250 can share the guiding shaft 270 to ensure the movement accuracy of the first moving die mechanism 230 and the second moving die mechanism 250.

[0064] Furthermore, a number of equal-height limiting members are provided between the second moving die mechanism 250 and the stationary die holder 240, which are used to control the distance between the injection molding pipeline 260 and the corresponding mold core assembly. Thereby, the position accuracy of mold closing and mold opening can be further improved, and the product yield can be increased. Optionally, the equal-height limiting members are equal-height bolts.

[0065] In order to further improve the structural reliability, in an embodiment of the present application, a guiding structure can be provided between the first mold core assembly 210 and the stationary die holder 240 to improve the movement stability of the first mold core assembly 210. Correspondingly, a guiding structure can be provided between the second mold core assembly 220 and the stationary die holder 240 to improve the movement stability of the second mold core assembly 220. Correspondingly, a guiding structure can also be provided between the slider 2321 and the stationary die holder 240 to improve the movement stability of the slider 2321.

[0066] Please refer to Figures 3 to 6 and Figures 10 to 14 In order to further improve the production efficiency, in an embodiment of the present application, two first injection positions 2101 are provided on the first mold core assembly 210. When one first injection position 2101 is at the molding station B1, the other first injection position 2101 is at the assembly station B2; two second injection positions 2201 are provided on the second mold core assembly 220. When one second injection position 2201 is at the molding station B1, the other second injection position 2201 is at the assembly station B2.

[0067] In this embodiment, two first injection positions 2101 are provided on the first mold core assembly 210, and two second injection positions 2201 are provided on the second mold core assembly 220. When the first group of first injection positions 2101 and second injection positions 2201 are at the molding station B1, the second group of first injection positions 2101 and second injection positions 2201 are at the assembly station B2. Thus, while the first group of first injection positions 2101 and second injection positions 2201 at the molding station B1 are performing the injection molding process, the first sub-injection part A1 in the first injection position 2101 and the second sub-injection part A2 in the second injection position 2201 at the assembly station B2 can perform the assembly and sealing process and the liquid filling process. Thereby, the injection molding, assembly and liquid filling processes can be carried out synchronously, the waiting time can be reduced, the production rhythm can be accelerated, and the production efficiency can be further improved.

[0068] It should be noted that the mold 200 of this embodiment has two sets of assembly stations B2, which are respectively arranged on the opposite sides of the molding station B1. It can be understood that when the first set of first injection positions 2101 and the second injection position 2201 are at the molding station B1, the second set of first injection positions 2101 and the second injection position 2201 are at one side of the assembly station B2. After the first set completes the injection molding process and the products of the second set are unloaded, the first mold core assembly 210 and the second mold core assembly 220 switch positions, driving the first set of first injection positions 2101 and the second injection position 2201 to move to the assembly station B2 on the other side for assembly and liquid filling processes. At this time, the second set of first injection positions 2101 and the second injection position 2201 move to the molding station B1 for the injection molding process; and so on in a cycle to achieve the batch manufacturing of the balance ring.

[0069] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An injection molding part production device, characterized in that, include: frame; A mold, arranged on the frame; the mold comprises a first mold core assembly and a second mold core assembly, the first mold core assembly is provided with a first injection molding position, the first mold core assembly is configured to be able to drive the first injection molding position to move between a molding station and an assembly station; the second mold core assembly is provided with a second injection molding position, the second mold core assembly is configured to be able to drive the second injection molding position to move between a molding station and an assembly station; wherein the first injection molding position is used to mold a first sub-injection molding part at the molding station, and the second injection molding position is used to mold a second sub-injection molding part at the molding station; A material pushing mechanism, provided on the frame, for driving one of the first sub-injection molded part and the second sub-injection molded part to move toward the other when the first injection molding position and the second injection molding position are in an assembly station; a heating device, disposed on the frame, for heating the butting surface of the first sub-injection molded part and / or the second sub-injection molded part, so that the first sub-injection molded part and the second sub-injection molded part are assembled into an injection molded product; and The liquid filling device is arranged on the frame and is used for filling the assembled injection molded product with liquid.

2. The injection molding part production equipment according to claim 1, characterized in that, The mold further comprises a first movable mold mechanism, wherein the first movable mold mechanism is configured to perform a mold closing or mold opening action with the first mold core assembly when the first injection molding station is in a molding station; And / or, the first movable mold mechanism is configured to perform a mold closing or mold opening action with the second mold core assembly when the second injection station is in the molding station.

3. The injection molding part production equipment according to claim 2, characterized in that, The first mold core assembly is arranged opposite to the second mold core assembly, and the first injection position and the second injection position are configured to be opposite to each other when in a molding station; The first movable mold mechanism includes a movable mold part and a slider assembly transmission-connected to the movable mold part, wherein the slider assembly is located between the first mold core assembly and the second mold core assembly; the slider assembly is used to move under the drive of the movable mold part to close or open the first injection position, and to close or open the second injection position.

4. The injection molding part production equipment according to claim 3, characterized in that, The movable mold part includes a movable mold plate disposed on one side of the molding station and a transmission block disposed on one side of the movable mold plate, and the movable mold plate is used to drive the transmission block to move closer to or away from the molding station; The slider assembly includes two sliders that are respectively connected to the opposite side surfaces of the transmission block. When the transmission block moves closer to or away from the molding station, the two sliders can be driven to move in opposite directions to respectively close the first injection molding position and the second injection molding position, or to move towards each other to respectively disengage from the first injection molding position and the second injection molding position.

5. The injection molding part production equipment according to claim 4, characterized in that, The two side surfaces of the transmission block facing the first mold core assembly and the second mold core assembly are respectively provided with guiding inclined surfaces, and / or the surfaces of the sliding block that cooperate with the transmission block are provided with guiding inclined surfaces; And / or, the transmission block is provided with a limiting guide rail, and the two sliding blocks are slidably matched with the corresponding limiting guide rails.

6. The injection molding part production equipment according to any one of claims 1 to 5, characterized in that, The first mold core component and the second mold core component are arranged opposite to each other in the up-down direction, the first injection molding position is arranged on the lower surface of the first mold core component, the second injection molding position is arranged on the upper surface of the second mold core component, and the second injection molding position is used to be opposite to the first injection molding position; The first core component and the second core component are configured to move in the horizontal direction.

7. The injection molding part production equipment according to claim 6, characterized in that, The first core component includes a movable first core plate and a first groove member provided on the first core plate, and the first groove member forms the first injection position. When the first injection position and the second injection position are at the assembly station, the first groove member is configured to drive the first sub-injection part therein to move towards the second sub-injection part under the drive of the pushing mechanism.

8. The injection molding part production equipment according to any one of claims 2 to 5, characterized in that, The mold further includes a stationary mold base fixedly provided on the frame. The molding station is located inside the stationary mold base, the assembly station is located outside the stationary mold base. The first core component and the second core component are movably mounted on the stationary mold base, and the first moving mold mechanism is movably connected to the stationary mold base.

9. The injection molding part production equipment according to claim 8, characterized in that, The mold further includes a second moving mold mechanism movably connected to the stationary mold base. Two injection pipes for connecting the injection mechanism are provided on the second moving mold mechanism. The two injection pipes are respectively configured to be connected to the first injection position and the second injection position located at the molding station. The second moving mold mechanism is configured to drive the two injection pipes to disengage from the first core component and the second core component before the first injection position and the second injection position switch stations.

10. The injection molding part production equipment according to claim 9, characterized in that, A plurality of equal-height limit members are provided between the second moving mold mechanism and the stationary mold base to control the distance between the injection pipes and the corresponding core components.

11. The injection molding part production equipment according to any one of claims 1 to 5, characterized in that, Two first injection positions are provided on the first core component. When one first injection position is at the molding station, the other first injection position is at the assembly station. Two second injection positions are provided on the second core component. When one second injection position is at the molding station, the other second injection position is at the assembly station.

12. The injection molding part production equipment according to any one of claims 1 to 5, characterized in that, The second injection position and the first injection position are configured to be oppositely arranged at the assembly station, and the side part of the frame corresponding to the assembly station is provided with an opening. The heating device includes a movable heating plate, and the heating plate is configured to be able to move through the opening to the area between the first injection position and the second injection position at the assembly station. The liquid filling device includes a movable liquid filling head, and the liquid filling head is configured to be able to move through the opening to between the first injection position and the second injection position to fill the assembled injection product with liquid.

13. The injection molding part production equipment according to claim 12, characterized in that, The heating device is provided on the side part of the frame; and / or the liquid filling device is provided on the side part of the frame.

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