Injection molding production equipment

Abstract

The present invention discloses an injection molding production device, which relates to the technical field of injection molding production. The device comprises a frame and a mold, a pusher mechanism, a heating device, and a liquid filling device 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, which can 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, which can drive the second injection molding position to move between a molding station and an assembly station; the pusher mechanism is used to drive one of the first sub-injection molding part and the second sub-injection molding part toward the other at the assembly station; the heating device is used to heat the mating surface of the first sub-injection molding part and / or the second sub-injection molding part; and the liquid filling device is used to fill the assembled injection molded product with liquid. The technical solution of the present invention can realize the processes of injection molding, welding and sealing, and liquid filling in one device without the need for intermediate turnover, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molded parts production, in particular to an injection molded parts production device. Background Art

[0002] In the prior art, hollow injection-molded plastic products are typically produced by separate injection molding, with the two parts then transferred to welding equipment for assembly. Furthermore, for hollow sealing structures like the balance ring in a washing machine, which require salt water filling, the parts must be transferred to a water filling facility after welding and assembly. This reliance on multiple equipment transfers results in low production efficiency. Summary of the Invention

[0003] The main purpose of the present invention is to propose an injection molding production equipment, which aims to realize the processes of injection molding, welding sealing and liquid filling in one device without the need for intermediate turnover processes, thereby improving production efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides an injection molded parts production device, comprising:

[0005] frame;

[0006] A mold is 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 molding station, and the first mold core assembly is configured to drive the first injection molding station to move between a molding station and an assembly station; the second mold core assembly is provided with a second injection molding station, and the second mold core assembly is configured to drive the second injection molding station to move between the molding station and the assembly station; wherein the first injection molding station is used to mold a first sub-injection molded part in the molding station, and the second injection molding station is used to mold a second sub-injection molded part in the molding station;

[0007] 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 toward the other when the first injection molding position and the second injection molding position are in the assembly position;

[0008] a heating device, provided 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

[0009] The liquid filling device is arranged on the frame and is used for filling the assembled injection molded product with liquid.

[0010] In one embodiment of the present application, 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 position is in the molding position;

[0011] 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 position is in the molding station.

[0012] 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 position and the second injection position are configured to be opposite to each other when in the molding station;

[0013] 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 close or open the second injection position.

[0014] In one embodiment of the present application, the movable mold member includes a movable platen provided on one side of the forming station and a transmission block provided on one side of the movable platen, wherein the movable platen is used to drive the transmission block to move closer to or away from the forming station;

[0015] 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, it can drive the two sliders to move in opposite directions to respectively close the first injection molding position and the second injection molding position, or move towards each other to respectively disengage from the first injection molding position and the second injection molding position.

[0016] In one embodiment of the present application, the transmission block is provided with guiding inclined surfaces on both side surfaces facing the first mold core assembly and the second mold core assembly, and / or the surface of the slider that cooperates with the transmission block is provided with guiding inclined surfaces;

[0017] 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.

[0018] In one embodiment of the present application, the first mold core assembly and the second mold core assembly are arranged opposite to each other in the vertical direction, the first injection molding position is provided on the lower surface of the first mold core assembly, and the second injection molding position is provided on the upper surface of the second mold core assembly, and the second injection molding position is used to be opposite to the first injection molding position;

[0019] The first mold core assembly and the second mold core assembly are configured to move in a horizontal direction.

[0020] In one embodiment of the present application, the first mold assembly includes a movable first mold plate and a first groove member provided on the first mold plate, wherein the first groove member forms the first injection position;

[0021] 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.

[0022] In one embodiment of the present application, the mold also includes a static mold frame fixed to the frame, the molding station is located inside the static mold frame, the assembly station is located outside the static mold frame, the first mold core assembly and the second mold core assembly are movably mounted on the static mold frame, and the first movable mold mechanism is movably connected to the static mold frame.

[0023] In one embodiment of the present application, the mold further comprises a second movable mold mechanism movably connected to the static mold frame, the second movable mold mechanism being provided with two sets of injection pipes for connecting to an injection molding mechanism, the two sets of injection pipes being respectively connected to the first injection molding position and the second injection molding position located at the molding station;

[0024] The second movable mold mechanism is configured to drive the two groups of injection pipes to separate from the first mold core assembly and the second mold core assembly before the first injection position and the second injection position switch positions.

[0025] In one embodiment of the present application, a plurality of equal-height limiters are provided between the second movable mold mechanism and the static mold frame for controlling the distance between the injection pipe and the corresponding mold core assembly.

[0026] In one embodiment of the present application, the first mold core assembly is provided with two first injection molding positions, and when one of the first injection molding positions is in the molding position, the other first injection molding position is in the assembly position;

[0027] The second mold core assembly is provided with two second injection molding positions. When one of the second injection molding positions is in the molding position, the other second injection molding position is in the assembly position.

[0028] In one embodiment of the present application, the second injection molding station and the first injection molding station are configured to be arranged opposite to each other in the assembly station, and the side of the frame is opened corresponding to the assembly station;

[0029] The heating device includes a movable heating plate, and the heating plate is configured to be movable through the opening to an area between the first injection molding station and the second injection molding station at the assembly station;

[0030] The liquid filling device includes a movable liquid filling head, which is configured to be able to move through the opening to between the first injection molding position and the second injection molding position to fill the assembled injection molded product with liquid.

[0031] In one embodiment of the present application, the heating device is disposed on a side of the frame; and / or the liquid filling device is disposed on a side of the frame.

[0032] In the injection molding production equipment of the technical solution of the present invention, a mold, a pushing mechanism, a heating device and a filling device are arranged on a frame, and 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 molded part and the second sub-injection molded part at the molding station, and then the first sub-injection molded part and the second sub-injection molded part are moved to the assembly station for assembly, sealing and filling operations. As a result, the same equipment can realize the processes of injection molding of two semi-finished products, assembling and sealing the two semi-finished products into a ring structure with a hollow cavity, and filling the hollow cavity of the ring structure, without the need for intermediate turnover processes, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is a structural schematic diagram of an injection molded parts production device according to an embodiment of the present invention from a first perspective;

[0035] Figure 2 This is a structural schematic diagram of another perspective of an embodiment of the injection molding production equipment of the present invention;

[0036] Figure 3 Schematic diagram of the positions of the forming station and the assembly station in an embodiment of the present invention;

[0037] Figure 4 For the mold core component Figure 3 Schematic diagram of the structure in the position clamping state;

[0038] Figure 5 for Figure 4 Structural diagram when the static mold base and the second movable mold structure are hidden;

[0039] Figure 6 for Figure 4 A side view of an embodiment;

[0040] Figure 7 It is a structural diagram of the second movable mold mechanism when it leaves the static mold frame;

[0041] Figure 8 for Figure 7 Side view of the embodiment after hiding the static mold base;

[0042] Figure 9 for Figure 8 A partial enlarged view of the M in the middle;

[0043] Figure 10 It is a structural diagram of the first movable mold mechanism in the mold opening state;

[0044] Figure 11 for Figure 10 A schematic diagram of the structure of the embodiment when the static mold frame and the second movable mold structure are hidden;

[0045] Figure 12 for Figure 10 Schematic diagram of the structure of the mold core component after switching positions in the state;

[0046] Figure 13 for Figure 12 A top view of an embodiment;

[0047] Figure 14 For the mold core component Figure 12 Schematic diagram of the location of the molding station and assembly station;

[0048] Figure 15 For the mold core component Figure 14 Schematic diagram of the structure in the position clamping state;

[0049] Figure 16 for Figure 15 A schematic diagram of the structure of the embodiment when the static mold frame and the second movable mold structure are hidden;

[0050] Figure 17 for Figure 15 A schematic structural diagram of an embodiment in which a heating device heats the butting surfaces of two sub-injection molded parts in the state;

[0051] Figure 18 This is a schematic diagram of the structure of the two sub-injection molded parts when they are assembled and sealed after heating is completed;

[0052] Figure 19 This is a schematic diagram of the structure during the filling operation after assembly is completed;

[0053] Figure 20 This is a schematic diagram of the structure after the product is taken out after filling.

[0054] Description of Figure Numbers:

[0055] 100, rack;

[0056] 200, mold; 210, first mold core assembly; 211, first mold core plate; 212, first groove member; 2101, first injection position; 220, second mold core assembly; 2201, second injection position; 230, first movable mold mechanism; 231, movable mold member; 2311, movable mold plate; 2312, transmission block; 232, slider assembly; 2321, slider; 233, position limiting guide rail; 240, static mold frame; 250, second movable mold mechanism; 260, injection pipe; 270, guide shaft;

[0057] 300, pushing mechanism;

[0058] 400, heating device;

[0059] 500, filling device;

[0060] 600, injection molding mechanism;

[0061] A1, first sub-injection molded part; A2, second sub-injection molded part; B1, molding station; B2, assembly station.

[0062] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0064] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0065] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or an option in which both A and B are satisfied.

[0066] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the 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 number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0067] This invention proposes an injection molding machine for manufacturing hollow structures. This machine is designed to perform the processes of semi-finished product injection molding, assembly and sealing, and liquid filling on the same device, eliminating the need for intermediate processes and improving production efficiency. It is understood that the hollow structures manufactured by this injection molding machine are not limited to a specific product and can also include washing machine balance rings or other structures. For ease of understanding, the specific structure of this injection molding machine is described below using the manufacturing of washing machine balance rings as an example.

[0068] like Figures 1 to 3 、 Figures 17 to 20 As shown, the injection molding production equipment includes a frame 100 , a mold 200 arranged on the frame 100 , a material pushing mechanism 300 , a heating device 400 and a liquid filling device 500 .

[0069] 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 molding station 2101, and the first mold core assembly 210 is configured to drive the first injection molding station 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 molding station 2201, and the second mold core assembly 220 is configured to drive the second injection molding station 2201 to move between the molding station B1 and the assembly station B2. The first injection molding station 2101 is used to mold a first sub-injection molded part A1 when in the molding station B1, and the second injection molding station 2201 is used to mold a second sub-injection molded part A2 when in the molding station B1.

[0070] The pusher mechanism 300 is used to drive one of the first sub-injection molded part A1 and the second sub-injection molded part A2 to move toward the other when the first injection molding position 2101 and the second injection molding position 2201 are in the assembly station B2;

[0071] The heating device 400 is used to heat the docking position of the first sub-injection molded part A1 and / or the second sub-injection molded part A2, so that the first sub-injection molded part A1 and the second sub-injection molded part A2 are assembled into the injection molded product A;

[0072] The liquid filling device 500 is used to perform liquid filling operations on the assembled injection molded product A.

[0073] In this embodiment, the frame 100 supports and installs various components such as the mold 200, the pushing mechanism 300, the heating device 400 and the filling device 500, so that the various components are integrated on the frame 100 without the need for midway turnover of semi-finished products.

[0074] Since the balance ring is an annular structure with a hollow sealed cavity, during manufacturing, at least two semi-finished products (for example, two half-ring structures) will be manufactured first and then assembled into an annular structure with a hollow cavity. Therefore, the mold 200 in this embodiment can respectively mold the first sub-injection molded part A1 and the second sub-injection molded part A2 (two semi-finished products), and move them 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 molding position 2101, and the second mold core assembly 220 is provided with a second injection molding position 2201. The first mold core assembly 210 can drive the first injection molding position 2101 to move between the molding position B1 and the assembly position B2, and the second mold core assembly 220 can drive the second injection molding position 2201 to move between the molding position B1 and the assembly position B2. Thus, in actual operation, the first mold core assembly 210 can first drive the first injection molding position 2101 to move to the molding station B1 and connect with the injection molding mechanism 600 to mold the first sub-injection molding part A1 (for example, the upper ring or left ring of the balance ring), and the second mold core assembly 220 can first drive the second injection molding position 2201 to move to the molding station B1 and connect with the injection molding mechanism 600 to mold the second sub-injection molding part A2 (for example, the lower ring or right ring of the balance ring), and then the first mold core assembly 210 drives the first injection molding position 2101 with the first sub-injection molding part A1 to move to the assembly station B2, and the second mold core assembly 220 drives the second injection molding position 2201 with the second sub-injection molding 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 may include a first injection molding station 2101 for molding a first sub-injection molded part A1 and a second injection molding station 2201 for molding a second sub-injection molded part A2. The molding station B1 of the first injection molding station 2101 may be the same as or different from the molding station B1 of the second injection molding station 2201. The actions of the two in performing the molding process may be linked or independent of each other, and the two may be performed synchronously or asynchronously. Optionally, the movement mode of the first mold core assembly 210 may be sliding or rotating, and the movement mode of the second mold core assembly 220 may be sliding or rotating. The movement of the first mold core assembly 210 and the second mold core assembly 220 may be driven by a drive device. The specific structure of the drive device may be determined according to actual conditions, such as a motor drive device, a cylinder or oil cylinder drive device, or some other drive device.

[0075] After the first injection molding position 2101 drives the first sub-injection molding part A1 to move to the assembly station B2, and the second injection molding position 2201 drives the second sub-injection molding part A2 to move to the assembly station B2, the pushing mechanism 300 starts to move, which is used to drive one of the first sub-injection molding part A1 and the second sub-injection molding part A2 to move toward the other, so that the two semi-finished products can be close to each other. It can be understood that the specific structure of the pushing mechanism 300 can be determined according to actual conditions, for example, it can be a cylinder push rod structure, a motor-driven screw nut structure or some other structure. The purpose of the pushing mechanism 300 is to allow the first sub-injection molding part A1 and the second sub-injection molding part A2 to be close to each other, which can be to push the first sub-injection molding part A1 toward the second sub-injection molding part A2, or to push the second sub-injection molding part A2 toward the first sub-injection molding part A1.

[0076] When the distance between the first sub-injection molded part A1 and the second sub-injection molded part A2 is getting closer and closer, the heating device 400 can heat and melt the mating surface of the first sub-injection molded part A1 and the second sub-injection molded part A2, so that the first sub-injection molded part A1 and the second sub-injection molded part A2 can be sealed and fixed into a ring structure with a hollow cavity when they are docked and assembled. Exemplarily, the heating device 400 can be a heating plate. When the pushing mechanism 300 pushes the first sub-injection molded part A1 toward the second sub-injection molded part A2, the heating plate can be moved between the second sub-injection molded part A2 and the first sub-injection molded part A1, so that the two opposite surfaces of the heating plate are respectively attached to and heated with the mating surface of the second sub-injection molded part A2 and the mating surface of the first sub-injection molded part A1. After heating is completed, the heating plate withdraws from between the second sub-injection molded part A2 and the first sub-injection molded part A1, and the pushing mechanism 300 continues to push the first sub-injection molded part A1 to be fixed and sealed with the second sub-injection molded part A2.

[0077] After the first sub-molded part A1 and the second sub-molded part A2 are assembled and sealed, the liquid filling device 500 begins to operate, filling the inner cavity of the assembled annular structure with liquid (e.g., salt water), thereby filling the balance ring with salt water. It will be appreciated that both the assembly and liquid filling processes of this embodiment are completed at assembly station B2 of the injection molding production equipment. That is, during the assembly and liquid filling operations, the semi-finished product remains within the corresponding first mold core assembly 210 or second mold core assembly 220 of the mold 200, eliminating the need for turnover of the semi-finished product. Instead, the heating plate of the heating device 400 and the liquid filling head of the liquid filling device 500 need only be moved to assembly station B2 for the corresponding operations. Compared to the related art method of transporting the semi-finished product to a dedicated welding device for assembly or to a dedicated salt water filling device for filling, this embodiment positions the product at the time of molding, eliminating the need for dedicated positioning or flipping of the product at the welding device or salt water filling device, simplifying the process flow and improving production efficiency. Furthermore, in some other embodiments, other auxiliary devices such as an ultrasonic welding device may be provided on the frame 100 to seal the filling port after the filling operation.

[0078] It should be noted that the specific location of the heating device 400 in this embodiment can be determined according to actual conditions, for example, it can be set above, on the side, or below the frame 100. When the first injection molding station 2101 drives the first sub-injection molding A1 to move to the assembly station B2, and the second injection molding station 2201 drives the second sub-injection molding A2 to move to the assembly station B2, the first sub-injection molding A1 and the second sub-injection molding A2 are spaced apart and opposite each other, and the heating plate of the heating device 400 can be moved between the first injection molding station 2101 and the second injection molding station 2201 to heat the interface between the first sub-injection molding A1 and the second sub-injection molding A2. Optionally, the heating device 400 is located on the side of the frame 100, so that it can be extended into the assembly station B2 or exited from the assembly station B2 through the opening on the side of the frame 100.

[0079] The specific location of the filling device 500 in this embodiment can also be determined based on actual circumstances; for example, it can be located above, to the side, or below the frame 100. Once the heating device 400 exits between the first injection molding station 2101 and the second injection molding station 2201, and the first and second sub-molded parts A1 and A2 are assembled, the filling head of the filling device 500 can be moved to the assembly station B2 to fill the inner cavity of the assembled product. Alternatively, the filling device 500 can be located on the side of the frame 100, allowing it to be easily accessed and exited from the assembly station B2 through an opening on the side of the frame 100.

[0080] It can be seen that in the injection molding production equipment of the technical solution of the present invention, by arranging the mold 200, the pushing mechanism 300, the heating device 400 and the filling device 500 on the frame 100, the mold 200 has a molding station B1 and an assembly station B2, and the first mold core component 210 and the second mold core component 220 of the mold 200 can respectively mold the first sub-injection molded part A1 and the second sub-injection molded part A2 at the molding station B1, and then move the first sub-injection molded part A1 and the second sub-injection molded part A2 to the assembly station B2 for assembly, sealing and filling operations. As a result, the processes of injection molding of two semi-finished products, assembling and sealing the two semi-finished products into an annular structure with a hollow cavity, and filling the hollow cavity of the annular structure can be realized in the same equipment without the need for intermediate turnover processes, thereby improving production efficiency.

[0081] See also Figures 4 to 6 as well as Figure 10 and Figure 11 In one embodiment of the present application, the mold 200 further includes a first movable mold mechanism 230 , which 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 in the molding station B1 .

[0082] It can be understood that the first movable mold mechanism 230 can move relative to the first mold core assembly 210. When the first mold core assembly 210 drives the first injection molding position 2101 to move to the molding station B1, the first movable mold mechanism 230 can move to cooperate with the first mold core assembly 210 to close the first injection molding position 2101 to form a closed first injection cavity for injecting molding material and maintaining pressure to form the first sub-injection molded part A1; then the first movable mold mechanism 230 and the first mold core assembly 210 open the mold to separate from the first sub-injection molded 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 molded part A1 to move to the assembly station B2.

[0083] See also Figures 4 to 6 as well as Figure 10 and Figure 11 In one embodiment of the present application, the first movable 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 in the molding station B1.

[0084] 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 cavity for injecting molding material and maintaining pressure to form a second sub-injection molded 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 molded part A2, avoiding interference 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 molded part A2 to move to the assembly station B2.

[0085] It should be noted that the first movable mold mechanism 230 can simultaneously close or open the first mold assembly 210 and the second mold assembly 220, or can also close or open the first mold assembly 210 and the second mold assembly 220 independently.

[0086] 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 the relative position 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.

[0087] Such a design enables the first mold core assembly 210 and the second mold core assembly 220 to be simultaneously closed or opened when the first movable mold mechanism 230 moves, thereby shortening waiting time and accelerating production tact. Specifically, the first injection molding position 2101 is located 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 located 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 arranged 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 assembly 210 and the second mold 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 molded, 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 assembly 210 and the second mold assembly 220 to move the first sub-injection molding part A1 and the second sub-injection molding part A2 to the assembly station B2.

[0088] Specifically, see Figures 4 to 6 as well as Figure 10 and Figure 11 The movable mold 231 includes a movable mold plate 2311 provided on one side of the molding station B1 and a transmission block 2312 provided 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 toward each other to respectively disengage from the first injection molding station 2101 and the second injection molding station 2201.

[0089] It can be understood that the two sliders 2321 are respectively arranged on 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, the two sliders 2321 can be pushed toward the first mold core assembly 210 and the second mold core assembly 220 respectively, so that the two sliders 2321 can respectively close the first injection molding position 2101 and the second injection molding position 2201 to realize the mold closing action; after the first sub-injection molding part A1 and the second sub-injection molding part A2 are molded, the transmission block 2312 moves away from the molding station B1 and pulls the two sliders 2321 toward the middle, so that the two sliders 2321 are respectively separated from the first injection molding position 2101 and the second injection molding position 2201 to realize the demolding action.

[0090] Optionally, the movable plate 2311 and the transmission block 2312 can be an integrally formed structure.

[0091] It should be noted that the transmission between the transmission block 2312 and the two sliders 2321 has a reversing function in addition to power transmission. The moving direction of the transmission block 2312 is set perpendicular to the moving direction of the two sliders 2321. Therefore, 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 difficulty of operation and improve accuracy.

[0092] 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 surface of the slider 2321 that cooperates with the transmission block 2312 is provided with guiding inclined surfaces.

[0093] In this embodiment, the directional control function between the transmission block 2312 and the slider 2321 is achieved by utilizing the guide ramps provided within the structure itself, eliminating the need for a dedicated directional control drive structure. This simplifies the structural design and reduces material costs. Alternatively, the transmission block 2312 may be a trapezoidal block with two guide ramps, with the larger end of the transmission block 2312 connected to the movable plate 2311 and the smaller end extending between the two sliders 2321. The slider 2321 may be a wedge-shaped block with a guide ramp on one side.

[0094] Furthermore, the transmission block 2312 is provided with a limiting guide rail 233 , and the two sliders 2321 are slidably fitted in the corresponding limiting guide rail 233 .

[0095] With such a setting, the limiting guide rail 233 can achieve a guiding and limiting effect on the two sliders 2321 during movement, which can further improve the stability of the sliders 2321 during movement, and at the same time improve the position accuracy of the mold 200 during mold closing and opening, thereby improving product yield.

[0096] See also Figures 4 to 6 as well as Figures 10 to 14 In one embodiment of the present application, the first mold assembly 210 and the second mold assembly 220 are arranged relative to each other in the upper and lower directions, the first injection position 2101 is arranged on the lower surface of the first mold assembly 210, and the second injection position 2201 is arranged on the upper surface of the second mold assembly 220, and the second injection position 2201 is used to be opposite to the first injection position 2101; the first mold assembly 210 and the second mold assembly 220 are configured to move in the horizontal direction.

[0097] By arranging the first mold core assembly 210 and the second mold core assembly 220 in a vertically spaced relationship, the first injection molding position 2101 and the second injection molding position 2201 are also arranged in a vertically relative relationship during the molding process. At this time, the slider assembly 232 is located between the first injection molding position 2101 and the second injection molding position 2201. When the two sliders 2321 are separated from the first injection molding position 2101 and the second injection molding position 2201 respectively, the first sub-injection molded part A1 located at the first injection molding position 2101 is aligned with the first sub-injection molded part A1. The butt joint is set downward, and the butt joint of the second sub-injection molded part A2 located at the second injection molding position 2201 is set upward, so that when the first mold core assembly 210 and the second mold core assembly 220 move the first sub-injection molded part A1 and the second sub-injection molded part A2 to the assembly station B2, the butt joint of the first sub-injection molded part A1 and the butt joint of the second sub-injection molded part A2 can be set face to face, thereby making it more convenient for the pushing mechanism 300 to push the first sub-injection molded part A1 to the second sub-injection molded part A2 for assembly. With such a design, the annular structure after assembly is still in the second injection molding position 2201, that is, the annular structure is in a flat state, and the filling port of the annular structure is located on the upper surface of the annular structure, which is more convenient for the filling operation. Compared with the method in the related art where the annular structure is in a vertical state after assembly, this embodiment does not need to flip the annular structure, which reduces the process and further improves production efficiency.

[0098] See also Figures 15 to 20 In one embodiment of the present application, the first mold assembly 210 includes a movable first mold plate 211 and a first groove member 212 provided on the first mold plate 211, and the first groove member 212 forms a first injection molding position 2101; when the first injection molding position 2101 and the second injection molding position 2201 are in the assembly station B2, the first groove member 212 is used to drive the first sub-injection molding part A1 therein to move toward the second sub-injection molding part A2 under the drive of the pushing mechanism 300.

[0099] It can be understood that the first groove member 212 plays the role of molding the first sub-injection molded part A1 and carrying the first sub-injection molded part A1 to move toward 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 groove member 212 is embedded in the first mold core plate 211, and the first injection position 2101 is located on the lower surface of the first mold core plate 211 and is in an inverted arrangement. 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 groove member 212, and can directly push the first groove member 212 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 groove part 212, rather than the pushing mechanism 300 directly pushing the first sub-injection molded part A1 to move downward. This design can avoid deformation and damage of the first sub-injection molded part A1 during the downward movement, and can ensure the docking accuracy of the first sub-injection molded part A1 and the second sub-injection molded part A2, thereby improving the assembly accuracy of the two and improving the product yield.

[0100] See also Figures 3 to 6 as well as Figures 10 to 14 In one embodiment of the present application, the mold 200 also includes a static mold frame 240 fixed to the frame 100, the molding station B1 is located inside the static mold frame 240, the assembly station B2 is located outside the static mold frame 240, the first mold core assembly 210 and the second mold core assembly 220 are movably installed on the static mold frame 240, and the first movable mold mechanism 230 is movably connected to the static mold frame 240.

[0101] In this embodiment, the stationary mold frame 240 is fixed to the frame 100 and serves to support and mount various components, such as the two mold core assemblies, the first movable mold mechanism 230, and the pusher mechanism 300. The molding station B1 is located within the stationary mold frame 240, while the assembly station B2 is located outside the stationary mold frame 240. As will be appreciated, the first mold core assembly 210 and the second mold core assembly 220 can move relative to the stationary mold frame 240, driving the first injection molding station 2101 and the second injection molding station 2201 to move between the inside and outside of the stationary mold frame 240. Placing the molding station B1 within the stationary mold frame 240 facilitates injection molding by the injection pipe 260 into the first and second injection molding stations 2101, 2201. Positioning the assembly station B2 outside the stationary mold frame 240 provides ample operating space for the pusher mechanism 300, the heating device 400, and the liquid filling device 500, preventing the movement of these components from interfering with the stationary mold frame 240.

[0102] 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 realize 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.

[0103] 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.

[0104] 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. The second movable mold mechanism 250 is provided with two groups of injection pipes 260 for connecting to the injection molding mechanism. 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.

[0105] It can be understood that when the mold 200 is in the mold closing state, the second movable mold mechanism 250 is in contact with 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 both 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 work 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, 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.

[0106] 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.

[0107] Optionally, the second movable mold mechanism 250 is connected to the static mold frame 240 via a guide shaft 270 to ensure the positional accuracy of mold closing and opening. Optionally, the first movable mold mechanism 230 and the second movable mold mechanism 250 can share the guide shaft 270 to ensure the movement accuracy of the first movable mold mechanism 230 and the second movable mold mechanism 250.

[0108] Furthermore, several height-limiting members are positioned between the second movable mold mechanism 250 and the static mold frame 240 to control the distance between the injection pipe 260 and the corresponding mold core assembly. This further improves the positioning accuracy of mold opening and closing, thereby increasing product yield. Optionally, the height-limiting members are height-limiting bolts.

[0109] To further enhance structural reliability, in one embodiment of the present application, a guide structure may be provided between the first mold assembly 210 and the static mold frame 240 to enhance the motion stability of the first mold assembly 210. Similarly, a guide structure may be provided between the second mold assembly 220 and the static mold frame 240 to enhance the motion stability of the second mold assembly 220. Similarly, a guide structure may also be provided between the slider 2321 and the static mold frame 240 to enhance the motion stability of the slider 2321.

[0110] See also Figures 3 to 6 as well as Figures 10 to 14 In order to further improve production efficiency, in one embodiment of the present application, two first injection molding positions 2101 are provided on the first mold core assembly 210. When one first injection molding position 2101 is in the molding station B1, the other first injection molding position 2101 is in the assembly station B2; two second injection molding positions 2201 are provided on the second mold core assembly 220. When one second injection molding position 2201 is in the molding station B1, the other second injection molding position 2201 is in the assembly station B2.

[0111] In this embodiment, two first injection molding positions 2101 are provided on the first mold core assembly 210, and two second injection molding positions 2201 are provided on the second mold core assembly 220. When the first group of first injection molding positions 2101 and the second injection molding positions 2201 are in the molding station B1, the second group of first injection molding positions 2101 and the second injection molding positions 2201 are in the assembly station B2. Thus, while the first group of first injection molding positions 2101 and the second injection molding positions 2201 located at the molding station B1 are performing the injection molding process, the first sub-injection molding part A1 in the first injection molding position 2101 and the second sub-injection molding part A2 in the second injection molding position 2201 located at the assembly station B2 can perform the assembly sealing process and the filling process. Thus, the injection molding, assembly and filling processes can be carried out simultaneously, which can reduce waiting time, speed up the production rhythm, and further improve production efficiency.

[0112] It should be noted that the mold 200 of this embodiment has two groups of assembly stations B2, and the two groups of assembly stations B2 are respectively arranged on opposite sides of the molding station B1. It can be understood that when the first injection molding station 2101 and the second injection molding station 2201 of the first group are in the molding station B1, the first injection molding station 2101 and the second injection molding station 2201 of the second group are in the assembly station B2 on one side. After the first group completes the injection molding process and the second group unloads the product, the first mold core assembly 210 and the second mold core assembly 220 switch stations, driving the first group's first injection molding station 2101 and the second injection molding station 2201 to move to the assembly station B2 on the other side for assembly and filling processes. At this time, the second group's first injection molding station 2101 and the second injection molding station 2201 move to the molding station B1 for injection molding process; this cycle is repeated to achieve batch manufacturing of balance rings.

[0113] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An injection molding production equipment, characterized in that, include: frame; A mold is 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 molding station, and the first mold core assembly is configured to drive the first injection molding station to move between a molding station and an assembly station; the second mold core assembly is provided with a second injection molding station, and the second mold core assembly is configured to drive the second injection molding station to move between the molding station and the assembly station; wherein the first injection molding station is used to mold a first sub-injection molded part in the molding station, and the second injection molding station is used to mold a second sub-injection molded part in 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 toward the other when the first injection molding position and the second injection molding position are in the assembly position; a heating device, provided 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 A liquid filling device, provided on the frame, for performing liquid filling operations on the assembled injection molded product; The first mold core assembly and the second mold core assembly are arranged opposite to each other, and the first injection position and the second injection position are configured to be opposite to each other when in a molding station; The mold further includes a first movable mold mechanism, the first movable mold mechanism being located between the first mold core assembly and the second mold core assembly; the first movable mold mechanism being configured to perform a mold closing or mold opening action with the first mold core assembly when the first injection molding position is in a molding position; and the first movable mold mechanism being configured to perform a mold closing or mold opening action with the second mold core assembly when the second injection molding position is in a molding position; The mold also includes a static mold frame fixed to the frame, the molding station is located inside the static mold frame, the assembly station is located outside the static mold frame, the first mold core assembly and the second mold core assembly are movably mounted on the static mold frame, the first movable mold mechanism is movably connected to the static mold frame, and the moving direction of the first mold core assembly and the moving direction of the second mold core assembly are configured to be perpendicular to the mold opening and closing direction.

2. The injection molding production equipment according to claim 1, characterized in that: 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 close or open the second injection position.

3. The injection molding production equipment according to claim 2, characterized in that: The movable mold comprises a movable platen provided on one side of the forming station and a transmission block provided on one side of the movable platen, wherein the movable platen is used to drive the transmission block to move closer to or away from the forming 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 toward or away from the molding station, it can drive the two sliders to move in opposite directions to respectively close the first injection molding position and the second injection molding position, or move toward each other to respectively disengage from the first injection molding position and the second injection molding position.

4. The injection molding production equipment according to claim 3, characterized in that: The transmission block is provided with guiding inclined surfaces on both sides facing the first mold core assembly and the second mold core assembly, and / or the surface of the slider that cooperates 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.

5. The injection molding production equipment according to any one of claims 1 to 4, characterized in that: The first mold core assembly and the second mold core assembly are arranged opposite to each other in the vertical direction, the first injection molding position is provided on the lower surface of the first mold core assembly, and the second injection molding position is provided on the upper surface of the second mold core assembly, 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.

6. The injection molding production equipment according to claim 5, characterized in that: 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 position; When the first injection molding position and the second injection molding position are in the assembly position, 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.

7. The injection molding production equipment according to any one of claims 1 to 4, characterized in that: The mold further includes a second movable mold mechanism movably connected to the static mold frame, the second movable mold mechanism is provided with two sets of injection pipes for connecting to the injection molding mechanism, and the two sets of injection pipes are respectively used to connect to the first injection molding position and the second injection molding position located at the molding station; The second movable mold mechanism is configured to drive the two groups of injection pipes to separate from the first mold core assembly and the second mold core assembly before the first injection position and the second injection position switch positions.

8. The injection molding production equipment according to claim 7, characterized in that: A plurality of equal height limiting members are provided between the second movable mold mechanism and the static mold frame for controlling the distance between the injection pipe and the corresponding mold core assembly.

9. The injection molding production equipment according to any one of claims 1 to 4, characterized in that: The first mold core assembly is provided with two first injection molding positions, when one of the first injection molding positions is in the molding position, the other first injection molding position is in the assembly position; The second mold core assembly is provided with two second injection molding positions. When one of the second injection molding positions is in the molding position, the other second injection molding position is in the assembly position.

10. The injection molding production equipment according to any one of claims 1 to 4, characterized in that: The second injection molding station and the first injection molding station are configured to be arranged opposite to each other at the assembly station, and the side of the frame is opened corresponding to the assembly station; The heating device includes a movable heating plate, and the heating plate is configured to be movable through the opening to an area between the first injection molding station and the second injection molding station at the assembly station; The liquid filling device includes a movable liquid filling head, which is configured to be able to move through the opening to between the first injection molding position and the second injection molding position to fill the assembled injection molded product with liquid.

11. The injection molding production equipment according to claim 10, characterized in that: The heating device is arranged on the side of the frame; and / or the liquid filling device is arranged on the side of the frame.

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