A high-efficiency production injection molding device

Abstract

The utility model discloses a kind of high-efficiency production injection molding devices, belong to automobile filter injection molding device technical field.The device includes base, lower mould seat is arranged on the base, lower mould is arranged in the lower mould seat;The device further includes top plate, the bottom of the top plate is provided with hot runner plate, hot flow injection molding mechanism is arranged in the hot runner plate, the bottom of the hot runner plate is provided with upper mould seat, upper mould is installed in the upper mould seat.The utility model places nut and copper bar directly in lower mould pouring groove inside when injection molding preparation, saves the tedious independent assembly process, reduces production link time consumption.When injection molding, three groups of injection molding pipes are collectively output, so that thermoplastic plastic is evenly and rapidly filled into injection molding cavity, and injection molding cycle is shortened.In cooling stage, upper and lower cooling pipelines are evenly distributed around pouring groove, realize the rapid and uniform cooling of injection molding part, reduce the problems of deformation and incomplete cooling, improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive filter injection molding equipment, and in particular to a high-efficiency production injection molding equipment. Background Technology

[0002] Automotive filter injection molding equipment is a specialized device for producing plastic components related to automotive filters.

[0003] The automotive filter injection molding unit uses injection molding as its core process. It heats and melts thermoplastic or thermosetting plastics, then injects them into a mold cavity under high pressure. Inside the mold, the molten plastic cools and solidifies, ultimately forming a plastic part with the precise shape and dimensions required for automotive filter components.

[0004] In actual production, it is often necessary to fix copper busbars and nuts to injection molded parts to meet product assembly requirements. However, currently, this operation needs to be completed sequentially through multiple independent processes, which not only leads to low production efficiency but also easily introduces errors, negatively impacting the yield rate of injection molded parts and weakening the overall structural strength of the parts. Therefore, finding an integrated fixing solution that simplifies the process and improves precision is particularly urgent. Utility Model Content

[0005] This invention provides a high-efficiency injection molding production device that can solve the problems in the prior art where the injection molding process involves multiple independent steps, resulting in low production efficiency and errors during assembly, which affect the yield and structural strength of the injection molded parts.

[0006] A high-efficiency injection molding production apparatus includes a base, on which a lower mold base is disposed, and a lower mold is disposed within the lower mold base; the apparatus also includes a top plate, at the bottom of which a hot runner plate is disposed, a hot runner injection mechanism is disposed inside the hot runner plate, at the bottom of the hot runner plate, an upper mold base is disposed inside the upper mold base, an upper mold is installed inside the upper mold, upper cooling pipes are distributed inside the upper mold, lower cooling pipes are distributed inside the lower mold, and an ejector pin demolding mechanism is disposed inside the base for ejecting the injection molded part from the gating groove of the lower mold.

[0007] As a further embodiment of this utility model, both the upper mold and the lower mold are provided with two sets of corresponding pouring grooves.

[0008] As a further embodiment of this utility model: the two sets of casting grooves on the lower mold are distributed between the lower cooling pipes, and the lower mold is provided with an interface that communicates with the lower cooling pipes.

[0009] As a further embodiment of this utility model: the two sets of casting grooves on the upper mold are distributed between the upper cooling pipes, and the upper mold is provided with an interface that communicates with the upper cooling pipes.

[0010] As a further embodiment of this utility model: the ejector pin demolding mechanism includes a push plate assembly that is fitted on the base. The push plate assembly is fixedly provided with a plurality of longitudinally arranged ejector pins. The lower mold is provided with through holes corresponding to the positions of the ejector pins. The ejector pins slide through the lower mold base and cooperate with the tube through holes. Pushing the push plate assembly causes the ejector pins to push the injection molded part inside the gating groove away from the gating groove.

[0011] As a further embodiment of this utility model: the hot runner injection molding mechanism includes a pouring interface disposed on the top plate, a hot runner channel disposed below the pouring interface, the hot runner channel being disposed inside the hot runner plate, three sets of injection tubes disposed below the hot runner channel, and a guide groove disposed on the lower mold that communicates with the corresponding pouring groove, the output end of each set of injection tubes passing through the upper mold and corresponding to the position of the guide groove.

[0012] As a further embodiment of this utility model: a guide post is fixedly provided between the base and the lower mold base, which slides in cooperation with the push plate assembly, and a spring is provided between the push plate assembly and the lower mold base.

[0013] As a further embodiment of this utility model: the base has a top hole in the middle to facilitate the automatic telescopic component to be pushed out, the automatic telescopic component extends out from the top hole, and thus pushes the push plate component to move.

[0014] As a further embodiment of this utility model: the upper mold base is provided with guide posts at its corner positions, and the lower mold base is provided with guide grooves at its four corner positions that are adapted to the guide posts.

[0015] As a further embodiment of this utility model, side plates are provided on both sides of the base.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this invention, during injection molding preparation, the nut and copper busbar can be directly placed inside the lower mold's gating groove for integrated injection molding, eliminating cumbersome independent assembly processes and reducing production time. During injection, three sets of injection pipes output simultaneously, ensuring that the thermoplastic plastic fills the injection cavity evenly and quickly, shortening the injection cycle. During the cooling stage, upper and lower cooling pipes are evenly distributed around the gating groove, achieving rapid and uniform cooling of the molded parts, reducing deformation and incomplete cooling problems, and improving production efficiency and product quality.

[0018] 2. In use, the automatic telescopic component extends from the top hole of the base to push the push plate assembly, which in turn drives the ejector pin to quickly eject the injection molded part from the gating trough, achieving efficient demolding and reducing the difficulty and time cost of manual operation. The spring setting allows the push plate assembly to automatically reset after the ejector pin completes demolding, maintaining the relative position of the ejector pin and the side wall of the gating trough, preparing for the next production and ensuring production continuity. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a high-efficiency injection molding production device provided by this utility model;

[0020] Figure 2 A schematic diagram of the structure of a high-efficiency injection molding device after mold separation is provided for this utility model;

[0021] Figure 3 A schematic diagram of the structure of a high-efficiency injection molding production device provided by this utility model;

[0022] Figure 4 A schematic diagram of the upper mold structure of a high-efficiency injection molding production device provided by this utility model;

[0023] Figure 5 A schematic diagram of the hot flow injection molding mechanism of a high-efficiency injection molding production device provided by this utility model;

[0024] Figure 6 A schematic diagram of the cooperation structure between the hot flow injection molding mechanism and the lower mold base of a high-efficiency injection molding device provided by this utility model;

[0025] Figure 7 A schematic diagram of a cooling pipe structure on a high-efficiency injection molding production device provided by this utility model;

[0026] Figure 8 A schematic diagram of the lower mold structure of a high-efficiency injection molding device provided by this utility model;

[0027] Figure 9 A schematic diagram of the ejector pin demolding mechanism of an efficient injection molding device provided by this utility model;

[0028] Figure 10 A top view of the lower mold structure of a high-efficiency injection molding device provided by this utility model;

[0029] Figure 11 A schematic diagram of a high-efficiency injection molding lower mold production device provided by this utility model;

[0030] Figure 12 A schematic diagram of the cooling pipe structure of a high-efficiency injection molding production device is provided for this utility model;

[0031] Figure 13 A schematic diagram of a hot runner plate structure for a high-efficiency injection molding production device provided by this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Top plate; 2. Hot runner plate; 3. Hot runner injection mechanism; 301. Injection port; 302. Hot runner; 303. Injection tube; 4. Upper mold base; 5. Upper mold; 501. Upper cooling pipe; 6. Lower mold base; 7. Lower mold; 701. Lower cooling pipe; 702. Guide channel; 8. Ejector pin demolding mechanism; 801. Push plate assembly; 802. Ejector pin; 803. Spring; 804. Guide pillar; 9. Base; 901. Side plate; 902. Top hole. Detailed Implementation

[0034] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0035] like Figures 1 to 13 As shown in the figure, this utility model provides a high-efficiency injection molding production device, including a base 9, a lower mold base 6 disposed on the base 9, and a lower mold 7 disposed inside the lower mold base 6. Its specific structure is as follows: Figure 1 As shown in the diagram, the device is also equipped with a top plate 1, at the bottom of which a hot runner plate 2 is installed. A hot runner injection mechanism 3 is located inside the hot runner plate 2. The main function of this mechanism is to transport thermoplastic materials to meet the needs of injection molding production. An upper mold base 4 is located at the bottom of the hot runner plate 2, and an upper mold 5 is installed inside the upper mold base 4.

[0036] Before the casting operation, the operator can place the nut and copper busbar directly into the corresponding position of the casting groove on the lower mold 7. The top plate 1 is mounted on a lifting device (not shown in the figure as the lifting device is not the focus of this utility model). This lifting device can move the top plate 1, hot runner plate 2, upper mold base 4, and upper mold 5 up and down together, so that the upper mold 5 can be precisely aligned with the lower mold 7, and the casting grooves on the upper mold 5 and lower mold 7 together form the injection cavity. Subsequently, thermoplastic plastic is delivered into the injection cavity through the hot runner injection mechanism 3. The thermoplastic plastic directly wraps the nut and copper busbar, thereby completing the injection operation. Because the copper busbar and nut assembly can be precisely matched with the casting groove, the precise positioning and rapid placement of the nut in the mold are achieved, thus realizing an integrated injection molding structure design, effectively improving production efficiency, and shortening the molding cycle.

[0037] like Figure 4 As shown, the upper mold 5 has upper cooling pipes 501 distributed inside, and the lower mold 7 has lower cooling pipes 701 distributed inside, as... Figure 8As shown, the base 9 is equipped with an ejector pin demolding mechanism 8 for ejecting the injection molded part from the gating groove of the lower mold 7. During the cooling process, coolant is injected into the upper cooling pipe 501 and the lower cooling pipe 701 simultaneously. The coolant flows inside the pipes, thereby achieving rapid cooling of the injection molded part and ensuring that the injection molded part can be formed in a timely manner.

[0038] It is important to note that Figure 4 , Figure 8 , Figure 12 All of these involve demonstrations of molds and cooling channels. It should be noted that the cooling channels are distributed inside the mold and evenly distributed around the gating system. Figure 4 , Figure 8 , Figure 12 This is only to show the extension path of the cooling pipes inside the mold, and does not mean that the cooling pipes are outside the mold, so as to avoid misunderstanding.

[0039] Both the upper mold 5 and the lower mold 7 are provided with two sets of corresponding pouring grooves, such as Figure 2 As shown, this device allows for the production of two sets of injection molded parts at a time, improving production efficiency. The two sets of gating grooves on the lower mold 7 are distributed between the lower cooling pipes 701, and the lower mold 7 is provided with an interface connecting to the lower cooling pipes 701, facilitating the injection and circulation of coolant. Similarly, the two sets of gating grooves on the upper mold 5 are distributed between the upper cooling pipes 501, and the upper mold 5 is also provided with an interface connecting to the upper cooling pipes 501. This layout facilitates timely and uniform cooling, effectively preventing deformation and incomplete cooling of the injection molded parts due to uneven cooling.

[0040] The hot runner injection molding mechanism 3 includes a filling port 301 disposed on the top plate 1, a hot runner 302 disposed below the filling port 301, the hot runner 302 being disposed inside the hot runner plate 2, and three sets of injection tubes 303 disposed below the hot runner 302, such as... Figure 5 As shown. The lower mold 7 is equipped with a guide channel 702 that communicates with the corresponding pouring groove. The output end of each injection tube 303 passes through the upper mold 5 and corresponds to the position of the guide channel 702, as shown. Figure 6 As shown. In this embodiment, two sets of casting tanks are arranged side by side, and the outlets of three sets of injection pipes 303 are located on the left, middle, and right sides of the two sets of casting tanks, respectively, with guide grooves 702 provided at the corresponding positions. During the injection molding process, thermoplastic plastic enters the hot runner 302 through the filling port 301, and is then transported to the corresponding guide grooves 702 through the three sets of injection pipes 303, and finally enters the casting tank to form the injection molded part. The separate delivery by the three sets of injection pipes 303 ensures the uniformity and efficiency of injection molding, effectively reducing the injection cycle.

[0041] The ejector pin demolding mechanism 8 includes a push plate assembly 801 that is fitted onto the base 9, such as... Figure 5 As shown, the pusher plate assembly 801 is fixedly equipped with multiple sets of longitudinally arranged ejector pins 802. The lower mold 7 is provided with through holes corresponding to the positions of the ejector pins 802. The ejector pins 802 are adapted to the side wall of the lower mold 7 and slide through the lower mold base 6, cooperating with the tube through holes. After the injection molded part cools down, the upper mold 5 separates from the lower mold 7. At this time, the injection molded part has solidified. The drive component pushes the pusher plate assembly 801, and the pusher plate assembly 801 drives the ejector pins 802 to push the injection molded part inside the gating groove away from the gating groove, achieving a rapid separation effect and further improving production efficiency.

[0042] like Figure 9 As shown, a guide post 804 is fixedly installed between the base 9 and the lower mold base 6, and slides with the ejector plate assembly 801. The guide post 804 guides the ejector plate assembly 801 to move in the correct direction. A spring 803 is installed between the ejector plate assembly 801 and the lower mold base 6. The elastic deformation of the spring 803 maintains the distance between the ejector plate assembly 801 and the lower mold base 6. When the ejector pin 802 drives the injection molded part out of the gating trough, the elastic potential energy of the spring 803 can press the ejector plate assembly 801 back to the bottom, maintaining the relative position of the ejector pin 802 and the side wall of the gating trough, preparing for the next demolding operation.

[0043] The base 9 has a top hole 902 in the middle to facilitate the ejection of the automatic telescopic component. The automatic telescopic component extends out from the top hole 902 (the automatic telescopic component is not the focus of this utility model, so it is not shown in the figure), thereby pushing the push plate assembly 801 to move. The push plate assembly 801 pushes the ejector pin 802 to move upward, thereby realizing the separation of the injection molded part, making the demolding operation more automated and convenient.

[0044] The upper mold base has guide pillars at its four corners, and the lower mold base 6 has guide grooves at its four corners that match the guide pillars, such as... Figure 2 As shown. During the mold closing process, the guide pillars are precisely inserted into the guide grooves to ensure that the upper mold 5 and the lower mold 7 are accurately aligned, avoiding defective products due to inaccurate mold alignment. Side plates 901 are provided on both sides of the base 9. The side plates 901 not only support the lower mold base 6, but also protect the ejector pin demolding mechanism 8 from interference and damage from external factors.

[0045] Please refer to the specific structure of the injection molded part. Figure 3 The two sets of copper busbars and multiple sets of nuts are directly fixed together through injection molding, realizing integrated molding and enhancing the overall performance and stability of the injection molded parts.

[0046] Working principle: Before starting the injection molding operation, the operator precisely places the nut and copper busbar in the corresponding position of the gating groove of the lower mold 7, so that the nut and copper busbar are tightly and precisely matched with the gating groove.

[0047] Driven by the hoisting device, the top plate 1 moves downward together with the hot runner plate 2, the upper mold base 4, and the upper mold 5. During the movement, the upper mold 5 gradually approaches the lower mold 7 until it precisely aligns with the lower mold 7. At this point, the gating grooves on the upper mold 5 and the lower mold 7 cooperate to form a complete injection cavity.

[0048] The hot runner injection mechanism 3 begins operation, and thermoplastic plastic enters the hot runner 302 inside the hot runner plate 2 through the filling port 301 on the top plate 1. The hot runner 302 evenly distributes the thermoplastic plastic to the three sets of injection tubes 303 below. The outlets of the three sets of injection tubes 303 are located on the left, middle, and right sides of the two sets of side-by-side gating tanks, respectively. The injection tubes 303 precisely deliver the thermoplastic plastic into the guide channel 702 on the lower mold 7, which is connected to the gating tank. The thermoplastic plastic flows into the injection cavity along the guide channel 702, completely encasing the pre-placed nuts and copper busbars. Because the three sets of injection tubes 303 operate simultaneously, the thermoplastic plastic is evenly distributed in the injection cavity, improving injection efficiency and reducing the injection cycle.

[0049] After the thermoplastic fills the injection cavity, coolant is simultaneously injected into the upper cooling pipe 501 inside the upper mold 5 and the lower cooling pipe 701 inside the lower mold 7. The coolant circulates in the pipes, so that the coolant can cool the injection molded part in a timely and uniform manner, avoiding the problem of deformation or incomplete cooling of the injection molded part due to uneven local cooling, and ensuring that the injection molded part can be formed quickly and uniformly.

[0050] After the injection molded part cools, the top plate 1 moves the upper mold 5 upward, separating it from the lower mold 7. At this point, the injection molded part has solidified in the gating groove of the lower mold 7. The automatic telescopic assembly extends from the top hole 902 in the middle of the base 9, pushing the push plate assembly 801 upward. Multiple sets of ejector pins 802 fixed on the push plate assembly 801 slide upward accordingly. The ejector pins 802 pass through the lower mold base 6 and engage with the through holes on the lower mold 7 corresponding to the positions of the ejector pins 802, pushing the injection molded part out of the gating groove, achieving rapid separation of the injection molded part from the mold. After the ejector pins 802 push the injection molded part away, the spring 803 between the push plate assembly 801 and the lower mold base 6 generates elastic potential energy through elastic deformation. When the automatic telescopic assembly retracts, the elastic potential energy of the spring 803 presses the push plate assembly 801 back to the bottom, restoring the ejector pins 802 to their initial positions, preparing for the next injection molding production.

[0051] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A high-efficiency production injection molding device, comprising a base (9) provided with a lower mold base (6) and a lower mold (7) arranged in the lower mold base (6); the device further comprises a top plate (1) provided with a hot runner plate (2) at the bottom, characterized in that: The hot runner plate (2) is provided with a hot runner injection mechanism (3), the bottom of the hot runner plate (2) is provided with an upper mold base (4), the upper mold base (4) is installed with an upper mold (5), the upper mold (5) is provided with upper cooling pipes (501), the lower mold (7) is provided with lower cooling pipes (701), and the base (9) is provided with an ejector pin demolding mechanism (8) for ejecting the injection molded part out of the gating groove of the lower mold (7).

2. The high-efficiency injection molding production apparatus as described in claim 1, characterized in that, Both the upper mold (5) and the lower mold (7) are provided with two sets of corresponding pouring grooves.

3. The high-efficiency injection molding production apparatus as described in claim 2, characterized in that, The two sets of casting grooves on the lower mold (7) are distributed between the lower cooling pipe (701), and the lower mold (7) is provided with an interface that communicates with the lower cooling pipe (701).

4. The high-efficiency injection molding production apparatus as described in claim 3, characterized in that, The two sets of casting grooves on the upper mold (5) are distributed between the upper cooling pipes (501), and the upper mold (5) is provided with an interface that communicates with the upper cooling pipes (501).

5. The high-efficiency injection molding production apparatus as described in claim 1, characterized in that, The ejector pin demolding mechanism (8) includes a push plate assembly (801) that is fitted on the base (9). Multiple sets of longitudinally arranged ejector pins (802) are fixedly arranged on the push plate assembly (801). The lower mold (7) is provided with through holes corresponding to the positions of the ejector pins (802). The ejector pins (802) slide through the lower mold base (6) and cooperate with the tube through holes. Pushing the push plate assembly (801) causes the push plate assembly (801) to drive the ejector pins (802) to push the injection molded part inside the gating groove away from the gating groove.

6. The high-efficiency injection molding production apparatus as described in claim 4, characterized in that, The hot runner injection molding mechanism (3) includes a filling port (301) set on the top plate (1), a hot runner (302) is set below the filling port (301), the hot runner (302) is set inside the hot runner plate (2), and three sets of injection tubes (303) are set below the hot runner (302). The lower mold (7) is provided with a guide groove (702) connected to the corresponding pouring groove. The output end of each set of injection tubes (303) passes through the upper mold (5) and corresponds to the position of the corresponding guide groove (702).

7. The high-efficiency injection molding production apparatus as described in claim 5, characterized in that, A guide post (804) that slides with the push plate assembly (801) is fixedly provided between the base (9) and the lower mold base (6), and a spring (803) is provided between the push plate assembly (801) and the lower mold base (6).

8. The high-efficiency injection molding production apparatus as described in claim 7, characterized in that, The base (9) has a top hole (902) in the middle to facilitate the automatic telescopic component to be pushed out. The automatic telescopic component extends out from the top hole (902) and pushes the push plate component (801) to move.

9. The high-efficiency injection molding production apparatus as described in claim 1, characterized in that, The upper mold base (4) is provided with guide posts at its corner positions, and the lower mold base (6) is provided with guide grooves at its four corner positions that are adapted to the guide posts.

10. The high-efficiency injection molding production apparatus as described in claim 1, characterized in that, The base (9) has side plates (901) on both sides.

Images