A multifunctional injection molding device for automotive injection molded parts

Abstract

This invention relates to a multifunctional injection molding device for automotive injection molded parts, belonging to the technical field of injection molding devices. The device includes a frame and a feeding mechanism. A fixed module is fixedly installed in the middle of the frame and connected to the feeding mechanism. Drive mechanisms are mounted on both sides of the fixed module. An upper module and a lower module are mounted above and below the fixed module, respectively. Both the upper and lower modules are connected to the fixed module via connecting rods. The drive mechanisms drive the connecting rods to slide while simultaneously pushing and pulling the upper and lower modules upwards and downwards, allowing the fixed module, upper module, and lower module to open and close the mold in the vertical direction. After the injection molded part is formed inside the cavity formed by the fixed module, upper module, and lower module, it is held inside the fixed module by a limiting plate and is peeled off simultaneously with the opening of the upper and lower modules, facilitating demolding of the molded injection molded part.

Description

Technical Field

[0001] This invention relates to a multifunctional injection molding device for automotive injection molded parts, belonging to the technical field of injection molding devices. Background Technology

[0002] Automotive injection molded parts refer to all injection molded products produced by injection molding machines, including various packaging, parts, rubber parts, etc., which are product accessories made of rubber. The production of injection molded parts and rubber parts generally adopts the compression molding method. The patent document with application number 201621050036.1 discloses an injection molding machine fixed platen. The mold is hoisted to the position of the injection molding machine mold installation by a traction mechanism. The worker installs the mold shank in the installation hole. Under the weight of the mold, the mold shank will slide from the installation hole into the positioning hole, thereby completing the mold installation. However, in this installation, it often relies on the interference fit between the hole and the mold shank for fixed installation. After the mold has been used, the mold shank and the platen are prone to loosening, which affects subsequent processing. Moreover, this installation method is also inconvenient to disassemble.

[0003] However, the existing injection molding equipment used in automobiles has a simple structure and is not easy to adjust the position of the injection mold, which affects the injection process of automobiles. 2. The existing injection molding equipment for automobiles has poor stability, is troublesome to install and disassemble, and traditional injection molding machines have large burrs and rough edges during injection, resulting in slow processing efficiency, limited functions, and the injection head is prone to deviation during long-term use, which affects processing accuracy and efficiency.

[0004] Therefore, we have made improvements to this and proposed a multifunctional injection molding device for automotive injection molded parts. Summary of the Invention

[0005] (I) The technical problem to be solved by the present invention is that the injection molding device for automotive injection molded parts has a simple structure, cannot be adjusted in position, has poor stability, and is troublesome to install and disassemble. Traditional injection molding machines have large burrs and rough edges during injection, resulting in slow processing efficiency, limited functionality, and the injection head is prone to deviation during long-term use, which affects processing accuracy and efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this invention provides a multifunctional injection molding device for automotive injection molded parts, including a frame and a feeding mechanism. A fixed module is fixedly installed in the middle of the frame and connected to the feeding mechanism. A driving mechanism is mounted on both sides of the fixed module. An upper module and a lower module are mounted above and below the fixed module, respectively. Bending connecting rods are connected to both sides of the upper and lower modules. The middle part of the connecting rod is slidably sleeved on the side of the fixed module and helically sleeved with the driving mechanism. A first chain is sleeved on the left end of the driving mechanism, and a motor is connected to the bottom of the first chain. A limiting plate is sleeved on the middle of the fixed module. The limiting plate penetrates the side of the fixed module away from the feeding mechanism and intersects with the inner walls of the upper and lower modules.

[0008] The fixed module includes a fixed frame, and the middle of the fixed frame is connected with several first layer plates and several second layer plates in a flip-type manner. The side of the fixed frame near the feeding mechanism has an injection hole that is connected through the feeding mechanism.

[0009] The central assembly of the fixed module, upper module, and lower module is provided with a circular cavity.

[0010] The total number of the first layer and the second layer is not less than ten, and the first layer and the second layer are stacked and connected.

[0011] The fixed module has T-shaped grooves on its two sides parallel to the drive mechanism.

[0012] The connecting rod includes two symmetrical sliders, which are slidably fitted into the two ends of the T-shaped groove of the fixed module. The upper and lower ends of the sliders are rotatably connected to a first pull rod and a second pull rod, respectively. The other ends of the first pull rod and the second pull rod are rotatably connected to the lower module and the upper module, respectively. The middle part of the slider is threadedly connected to the drive mechanism.

[0013] The driving mechanism includes a double-threaded lead screw, which is parallel to the side of the fixed module. A first gear is connected to the end of the double-threaded lead screw near the feeding mechanism, and the first gear meshes with the first chain.

[0014] The limiting plate is connected to a second gear at the end away from the feeding mechanism. A second chain is sleeved on the outside of the second gear, and a crank is installed on the second gear.

[0015] The feeding mechanism includes a feeding pipe, and a conveying propeller is rotatably installed inside the feeding pipe.

[0016] (III) Beneficial Effects

[0017] The multifunctional injection molding device for automotive injection molded parts provided by this invention has the following advantages:

[0018] 1. By setting independent fixed module, upper module and lower module, and the upper module and lower module are connected to the fixed module by connecting rods, the drive mechanism drives the connecting rod to slide while pushing and pulling the upper module and lower module up and down. The fixed module, upper module and lower module open and close the mold in the vertical direction. After the injection molded part is formed in the mold cavity formed by the fixed module, upper module and lower module, it is clamped in the fixed module by the limiting plate inside the fixed module. It is separated from the upper module and lower module at the same time as the mold opens, which facilitates the demolding of the injection molded part.

[0019] 2. By setting a book-like first and second layer plate inside the fixed module, the first and second layer plates are stacked under the compression of the upper and lower modules. After the first and second layer plates are compacted, they serve as the two sides of the mold cavity. The first and second layer plates, together with the inner walls of the mold cavity on the upper and lower modules, form a complete inner cavity for mold forming. The separation of the fixed module, upper module and lower module facilitates the separation of the molded mold.

[0020] 3. By inserting a limiting plate inside the fixed module, the length of the molding cavity inside the fixed module can be changed by the extension and retraction of the limiting plate inside the fixed module, thereby adapting to the injection molding of injection parts of different lengths. The limiting plate is connected to the outer end of the fixed module through the second gear, the second chain, and the rocker handle. When the limiting plate is rotated on the outside, it will also drive the molded injection part to rotate, so that the molded injection part is separated from the inner wall of the fixed module. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0023] Figure 2 A schematic diagram of the frame of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0024] Figure 3 A schematic diagram showing the connection of the fixed module, upper module, and lower module of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0025] Figure 4 A schematic diagram showing the upper and lower modules of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0026] Figure 5 A schematic diagram of a fixed module of an injection molding device for a multifunctional automotive injection molded part provided in this application;

[0027] Figure 6 A sectional view of a fixed module of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0028] Figure 7 A schematic diagram of the feeding mechanism of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0029] Figure 8 A schematic diagram of the connecting rod of a multifunctional injection molding device for automotive injection molded parts provided in this application;

[0030] Figure 9 A schematic diagram of point A of a multifunctional injection molding device for automotive injection molded parts provided in this application.

[0031] In the diagram: 1. Frame; 2. Fixed module; 21. Fixing frame; 22. Injection hole; 23. First layer plate; 24. Second layer plate; 3. Upper module; 4. Lower module; 5. Connecting rod; 51. First pull rod; 52. Second pull rod; 53. Slider; 6. Drive mechanism; 61. Double threaded screw; 62. First gear; 7. First chain; 8. Motor; 9. Feeding mechanism; 91. Feeding pipe; 92. Conveying propeller; 10. Limiting plate; 11. Second gear; 12. Second chain; 13. Handle. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0033] like Figures 1-9 As shown, this embodiment proposes a multifunctional injection molding device for automotive injection molded parts, including a frame 1 and a feeding mechanism 9. A fixed module 2 is fixedly installed in the middle of the frame 1 and connected to the feeding mechanism 9. A drive mechanism 6 is mounted on both sides of the fixed module 2. An upper module 3 and a lower module 4 are mounted above and below the fixed module 2, respectively. A bent connecting rod 5 is connected to both sides of the upper module 3 and the lower module 4. The middle part of the connecting rod 5 is slidably sleeved on the side of the fixed module 2 and spirally sleeved with the drive mechanism 6. A first chain 7 is sleeved on the left end of the drive mechanism 6. A motor 8 is connected to the bottom of the first chain 7. A limiting plate 10 is sleeved on the middle of the fixed module 2. The limiting plate 10 penetrates the side of the fixed module 2 away from the feeding mechanism 9 and intersects with the inner walls of the upper module 3 and the lower module 4.

[0034] The fixed module 2 includes a fixed frame 21. Several first layer plates 23 and several second layer plates 24 are connected in a flip-type manner in the middle of the fixed frame 21. An injection hole 22 is opened on the side of the fixed frame 21 near the feeding mechanism 9 and is connected through the feeding mechanism 9. The fixed frame 21 connects the first layer plates 23 and the second layer plates 24 inside, so that the first layer plates 23 and the second layer plates 24 maintain loose contact when they are not subjected to vertical compression, which facilitates the peeling of the injection molded parts inside the fixed module 2. The setting of the injection hole 22 allows the injection liquid inside the feeding mechanism 9 to flow into the injection hole 22 and be formed inside the mold cavity formed inside the fixed module 2, the upper module 3 and the lower module 4.

[0035] The central assembly of the fixed module 2, upper module 3, and lower module 4 is provided with a circular mold cavity. The fixed module 2, upper module 3, and lower module 4 are divided into three layers. After the injection molded part is formed, the fixed module 2 is attached to the inside of the fixed module 2. During the mold opening process of the upper module 3 and lower module 4, the fixed module 2 is separated from the injection molded part. The connection with the injection molded part is removed, and the compression restriction on the fixed module 2 is also released. The first layer plate 23 and the second layer plate 24 are loosely fitted on the outside of the injection molded part, which facilitates the separation of the injection molding machine from the fixed module 2, upper module 3, and lower module 4.

[0036] The total number of first layer plates 23 and second layer plates 24 is not less than ten, and the first layer plates 23 and second layer plates 24 are stacked and connected.

[0037] The fixed module 2 has T-shaped grooves on its two sides parallel to the drive mechanism 6. The T-shaped grooves on both sides of the fixed module 2 are sleeved with the slider 53, so that the slider 53 is guided by the T-shaped grooves while sliding with the drive mechanism 6, which facilitates the traction and swing of the slider 53 on the first pull rod 51 and the second pull rod 52.

[0038] The connecting rod 5 includes two symmetrical sliders 53, which are respectively slidably sleeved at both ends inside the T-shaped groove of the fixed module 2. The upper and lower ends of the sliders 53 are respectively rotatably connected to the first pull rod 51 and the second pull rod 52. The other ends of the first pull rod 51 and the second pull rod 52 are respectively rotatably connected to the lower module 4 and the upper module 3. The middle part of the slider 53 is threadedly connected to the drive mechanism 6. During the sliding process of the slider 53 on the drive mechanism 6, it pulls the first pull rod 51 and the second pull rod 52 to swing, so that the first pull rod 51 and the second pull rod 52 push the upper module 3 and the lower module 4 upward or downward respectively, so that the upper module 3 and the lower module 4 move away from the fixed module 2 at the same time, completing the mold opening of the fixed module 2, the upper module 3 and the lower module 4, which facilitates the use or cleaning of the injection molding device.

[0039] The drive mechanism 6 includes a double-threaded screw 61, which is parallel to the side of the fixed module 2. The end of the double-threaded screw 61 near the feeding mechanism 9 is connected to a first gear 62, which meshes with the first chain 7. The two sides of the double-threaded screw 61 have threads that turn in opposite directions, which simultaneously drive the two sliders 53 on both sides to move in opposite directions, causing the upper module 3 and the lower module 4 to slide smoothly up and down on the horizontal plane, thus preventing the upper module 3 and the lower module 4 from tilting or misaligning during the mold opening and closing process.

[0040] The end of the limiting plate 10 away from the feeding mechanism 9 is connected to a second gear 11. A second chain 12 is sleeved on the outside of the second gear 11, and a rocker arm 13 is installed on the second gear 11. The second gear 11 and the second chain 12 are simultaneously connected to multiple limiting plates 10 inside the fixed module 2, so that the limiting plates 10 can rotate synchronously, so as to quickly and efficiently process and demold the injection molded parts inside the fixed module 2, thereby increasing the processing efficiency of the device.

[0041] The feeding mechanism 9 includes a feeding pipe 91, and a conveying propeller 92 is rotatably installed inside the feeding pipe 91. The feeding pipe 91 is parallel to the fixed module 2 and is connected to the fixed module 2. The conveying propeller 92 is installed inside the feeding pipe 91 so that the injection molded part can be squeezed into the mold cavity composed of the fixed module 2, the upper module 3 and the lower module 4 during the rotation of the conveying propeller 92, which facilitates the feeding of the injection molded part.

[0042] Specifically, in use, this multifunctional automotive injection molding device works as follows: An independent fixed module 2 is installed in the middle of the frame 1. A movable upper module 3 and lower module 4 are respectively installed on the upper and lower sides of the fixed module 2 via a connecting rod 5. The drive mechanism 6 drives the connecting rod 5 to slide while simultaneously pulling the upper module 3 and lower module 4 upwards and downwards, causing the fixed module 2, upper module 3, and lower module 4 to close vertically, forming a mold cavity. A book-like first layer plate 23 and second layer plate 24 are installed inside the fixed module 2. These layers are stacked under the pressure of the upper module 3 and lower module 4, forming the sides of the mold cavity. Together with the inner walls of the mold cavity on the upper module 3 and lower module 4, the first layer plate 23 and second layer plate 24 form a complete inner cavity. For mold forming, the feeding mechanism 9 injects injection liquid into the mold cavity, so that the injection molded part is formed inside the mold cavity. The fixed module 2 is fitted with a limiting plate 10. The limiting plate 10 can change the length of the molding cavity inside the fixed module 2 by extending and retracting inside the fixed module 2, so as to adapt to the injection molding of injection molded parts of different lengths. The limiting plate 10 is connected to the outer end of the fixed module 2 through the second gear 11, the second chain 12, and the rocker 13. When the limiting plate 10 is rotated on the outside, it will also drive the molded injection molded part to rotate, so that the molded injection molded part is separated from the inner wall of the fixed module 2. The driving mechanism 6 drives the connecting rod 5 to slide in the opposite direction, so that the fixed module 2, the upper module 3 and the lower module 4 are opened in the vertical direction. The limiting plate 10 inside the fixed module 2 clamps the upper module 3 and the upper module 3 and the lower module 4 are peeled off at the same time as the mold is opened, so as to demold.

[0043] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A multifunctional injection molding apparatus for automotive injection molded parts, comprising a frame (1) and a feeding mechanism (9), characterized in that: A fixed module (2) is fixedly installed in the middle of the frame (1). The fixed module (2) is connected to the feeding mechanism (9). A driving mechanism (6) is mounted on both sides of the fixed module (2). An upper module (3) and a lower module (4) are mounted above and below the fixed module (2) respectively. A bent connecting rod (5) is connected to both sides of the upper module (3) and the lower module (4). The middle part of the connecting rod (5) is slidably sleeved on the side of the fixed module (2) and screwed into the driving mechanism (6). The driving mechanism (6) The left end of the fixed module (2) is fitted with a first chain (7), and the bottom of the first chain (7) is connected to a motor (8). The middle part of the fixed module (2) is fitted with multiple limiting plates (10). The limiting plates (10) penetrate the side of the fixed module (2) away from the feeding mechanism (9). The limiting plates (10) intersect with the inner walls of the upper module (3) and the lower module (4). The end of the limiting plate (10) away from the feeding mechanism (9) is connected to a second gear (11). The outer side of the second gear (11) is fitted with a first chain (7). The ... fixed module (2) is connected to a motor (8). The middle part of the fixed module (2) is fitted with multiple limiting plates (10). The limiting plates (10) penetrate the side of the fixed module (2) away from the feeding mechanism (9). The limiting plates (10) intersect with the inner walls of Two chains (12), and a crank (13) is installed on the second gear (11); the fixed module (2) includes a fixed frame (21), and a number of first layer plates (23) and a number of second layer plates (24) are connected in a flip-type manner in the middle of the fixed frame (21). A liquid injection hole (22) is opened on the side of the fixed frame (21) near the feeding mechanism (9) and is connected through the feeding mechanism (9); the total number of the first layer plates (23) and the second layer plates (24) is not less than ten. The first plate (23) and the second plate (24) are stacked and connected. The first plate (23) and the second plate (24) are stacked under the pressure of the upper module (3) and the lower module (4), so that the first plate (23) and the second plate (24) together with the inner wall of the mold cavity on the upper module (3) and the lower module (4) form a complete molding cavity. The limiting plate (10) extends and retracts inside the fixed module (2) to change the length of the molding cavity inside the fixed module (2), thereby adapting to the injection molding process of injection molded parts of different lengths.

2. The multifunctional injection molding device for automotive injection molded parts according to claim 1, characterized in that: The fixed module (2) has T-shaped grooves on its two sides parallel to the drive mechanism (6).

3. The injection molding device for a multifunctional automotive injection molded part according to claim 2, characterized in that: The connecting rod (5) includes two symmetrical sliders (53). The two sliders (53) are respectively slidably sleeved at both ends inside the T-shaped groove of the fixed module (2). The upper and lower ends of the sliders (53) are respectively rotatably connected to a first pull rod (51) and a second pull rod (52). The other ends of the first pull rod (51) and the second pull rod (52) are respectively rotatably connected to the lower module (4) and the upper module (3). The middle part of the slider (53) is threadedly connected to the drive mechanism (6).

4. The multifunctional injection molding device for automotive injection molded parts according to claim 1, characterized in that: The drive mechanism (6) includes a double threaded screw (61), which is parallel to the side of the fixed module (2), and a first gear (62) is connected to one end of the double threaded screw (61) near the feeding mechanism (9), and the first gear (62) meshes with the first chain (7).

5. The multifunctional injection molding device for automotive injection molded parts according to claim 1, characterized in that: The feeding mechanism (9) includes a feeding pipe (91), and a conveying propeller (92) is rotatably installed inside the feeding pipe (91).

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