Rocker arm support for injection molding machines

Abstract

The application belongs to the technical field of injection molding machines, and particularly relates to a rocker arm support for an injection molding machine for injection molding part preparation, which comprises a mounting plate, a box plate, a first adjusting support, a second adjusting support, a driving rod, an eccentric shaft, a first transmission member, a second transmission member and an extension piece. One section of the eccentric shaft is located on the inner side of the first shaft mounting portion and is rotationally connected therebetween through a bearing. The first transmission member and the second transmission member are rotationally connected with the eccentric shaft. The side surface of the first transmission member is provided with a first extension rod, and the end portion of the first extension rod is fixedly connected with a sliding block. The second transmission member is fixedly connected with the driving rod, and the side surface of the second transmission member is provided with a second extension rod. The side surface of the second extension rod is provided with a sliding hole, and the sliding block is located inside the sliding hole and slides. The service life is prolonged, the maintenance cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of injection molded parts, and specifically relates to an injection molding machine rocker arm bracket for injection molding part preparation. Background Technology

[0002] Injection molding machines are the main molding equipment used to mold thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molds. They have the ability to mold complex-shaped, precise-sized, or dense plastic products with metal inserts in one step and are widely used in various fields such as national defense, electromechanical, automotive, transportation, building materials, packaging, agriculture, education and health, and people's daily life.

[0003] In the Chinese invention patent application number CN201811372655.6, entitled "An Improved High-Efficiency Injection Molding Structure for Injection Molding Parts Preparation," the lifting support adjustment, rocker arm assembly, and injection adjustment assembly structure used can drive the injection head of the injection molding machine to complete precise, stable, and efficient movement and injection actions. The rocker arm assembly consists of a drive cylinder, an arc-shaped adjustment plate, an auxiliary support plate, and a drive rod. The structure is ingenious, but it is too complex, has high manufacturing costs, and is prone to damage during use. Summary of the Invention

[0004] The purpose of this invention is to provide an injection molding machine rocker arm bracket for injection molding parts preparation that has a simple structure, long service life, and low manufacturing cost.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an injection molding machine rocker arm bracket for injection molding part preparation is provided, including a mounting plate and a box plate. A connecting seat is fixedly connected to the side of the mounting plate, and a connecting ear is provided on the right side of the box plate. The connecting ear and the connecting seat are rotatably connected by a shaft. A first shaft mounting part and a second shaft mounting part are provided on the side of the box plate.

[0006] The first adjusting bracket and the second adjusting bracket are located on both sides of the connecting seat. One end of the first adjusting bracket is connected to the mounting plate and the other end is connected to the box plate. One end of the second adjusting bracket is connected to the mounting plate and the other end is connected to the box plate.

[0007] A drive rod is located inside the second shaft mounting portion and is rotatably connected to it via a bearing;

[0008] An eccentric shaft, one section of which is located inside the first shaft mounting portion and is rotatably connected to it via a bearing;

[0009] A first transmission component and a second transmission component. The first transmission component is rotatably connected to an eccentric shaft. The side of the first transmission component has a first extension rod, and a sliding block is fixedly connected to the end of the first extension rod. The second transmission component is fixedly connected to a drive rod. The side of the second transmission component has a second extension rod, and the side of the second extension rod has a sliding hole. The sliding block slides inside the sliding hole.

[0010] The telescopic component has its main body fixedly connected to the sliding block, and its telescopic end fixedly connected to the inner wall of the sliding hole.

[0011] Optionally, the eccentric shaft includes a first shaft body, a connecting part, and a second shaft body. The connecting part has a transverse structure. The first shaft body and the second shaft body are fixedly connected to both sides of the connecting part, and the first shaft body and the second shaft body are not concentric. A limiting part is fixedly connected to the end of the second shaft body away from the connecting part.

[0012] Optionally, the first adjusting bracket includes a sliding member, a sliding groove is provided on the side of the box plate, the sliding member slides inside the sliding groove, a spring is fixedly connected to the top of the sliding member, the top of the spring is fixedly connected to the inner top of the sliding groove, a threaded rod is fixedly connected to the bottom of the sliding member, an adjusting frame is threadedly connected to the bottom of the threaded rod, and the bottom end of the adjusting frame is rotatably connected to the mounting plate through a base.

[0013] Optionally, the sliding groove has an inverted U-shaped opening on its side, and a horizontal shaft is fixedly connected to the side of the sliding member, with the horizontal shaft located inside the inverted U-shaped opening.

[0014] Optionally, the base is fixedly connected to the mounting plate, and the bottom of the adjustment frame is rotatably connected to the base.

[0015] Optionally, a magnetic block is fixedly connected to one side of the connecting part facing the mounting plate, and a mounting platform is fixedly connected to one side of the mounting plate facing the connecting part. A first electromagnet and a second electromagnet are provided on the upper surface of the mounting platform, and the mounting platform is located on the line connecting the center of the first shaft mounting part and the center of the second shaft mounting part.

[0016] Optionally, the first adjusting bracket and the second adjusting bracket have the same structure.

[0017] Optionally, the mounting plate has mounting holes on its side.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention comprises an eccentric shaft, a first transmission component, a second transmission component, and a telescopic component for driving the first and second transmission components to slide. When the first and second transmission components slide relative to each other, the eccentric shaft is driven to rotate, causing one end of the eccentric shaft to perform a circular motion (the other end rotates around its own axis), thereby driving the first and second transmission components to rotate, which in turn causes the drive rod to rotate, thus realizing the function of a rocker arm. Compared with the rocker arm structure composed of a drive cylinder, an arc-shaped adjustment plate, an auxiliary support plate, and a drive rod, this invention can improve the service life of the injection molding machine, reduce maintenance costs, and thus improve the production efficiency of injection molding.

[0020] 2. In this invention, the box plate and the mounting plate are rotatably connected by a connecting seat and stabilized by two adjusting brackets (first adjusting bracket and second adjusting bracket). During use, the box plate can undergo slight angle adjustments to ensure that the box plate is in a horizontal state and improve the accuracy of the injection mold. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 This is a first-view perspective three-dimensional structural diagram of an injection molding machine rocker arm bracket for injection molding part preparation provided by an embodiment of the present invention;

[0023] Figure 2 This is a front view schematic diagram of an injection molding machine rocker arm bracket for injection molding part preparation provided by an embodiment of the present invention;

[0024] Figure 3 This is a top view of an injection molding machine rocker arm bracket for injection molding part preparation, provided by an embodiment of the present invention.

[0025] Figure 4 This is a second-view perspective three-dimensional structural diagram of an injection molding machine rocker arm bracket for injection molding part preparation provided by an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection structure between the drive rod and the auxiliary rod of an injection molding machine rocker arm bracket for injection molding part preparation, provided by an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the disassembly structure of the first adjusting bracket of an injection molding machine rocker arm bracket for injection molding part preparation, provided by an embodiment of the present invention.

[0028] Figure 7 for Figure 3 Cross-sectional view of line AA in the middle.

[0029] In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Connecting seat; 4. Box plate; 5. First adjusting bracket; 51. Sliding component; 52. Horizontal shaft; 53. Spring; 54. Threaded rod; 55. Adjusting frame; 56. Base; 6. First shaft mounting part; 7. Second shaft mounting part; 8. Drive rod; 9. Eccentric shaft; 91. First shaft body; 92. Connecting part; 93. Second shaft body; 94. Limiting part; 10. Magnetic block; 11. First transmission component; 12. Sliding block; 13. Second transmission component; 14. Telescopic component; 15. Second adjusting bracket; 16. Mounting platform; 17. First electromagnet; 18. Second electromagnet. Detailed Implementation

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] The rocker arm support for injection molding machines used in the preparation of injection molded parts, as provided in the embodiments of the present invention, will now be described. (See attached document.) Figures 1-7An injection molding machine rocker arm bracket for injection molding part preparation includes a mounting plate 1, a housing plate 4, a first adjusting bracket 5, a second adjusting bracket 15, a drive rod 8, an eccentric shaft 9, a first transmission component 11, a second transmission component 13, and a telescopic component 14. A connecting seat 3 is fixedly connected to the side of the mounting plate 1, and a connecting ear is provided on the right side of the housing plate 4. The connecting ear and the connecting seat 3 are rotatably connected by a shaft. A first shaft mounting part 6 and a second shaft mounting part 7 are provided on the side of the housing plate 4. After installation, the housing plate 4 can rotate along the axis of the connecting seat 3, and its positional accuracy is ensured by making slight adjustments using the first adjusting bracket 5 and the second adjusting bracket 15.

[0035] One end of the first adjusting bracket 5 is connected to the mounting plate 1, and the other end is connected to the box plate 4. One end of the second adjusting bracket 15 is connected to the mounting plate 1, and the other end is connected to the box plate 4. The first adjusting bracket 5 and the second adjusting bracket 15 are located on both sides of the connecting seat 3.

[0036] In use, adjust the overall length of the first adjusting bracket 5 and the second adjusting bracket 15 to support the box plate 4 on both sides of the connecting seat 3. By slightly adjusting the actual support length of the two adjusting brackets, the box plate 4 will rotate slightly, thereby adjusting its position.

[0037] The drive rod 8 is located inside the second shaft mounting part 7 and is rotatably connected to it by a bearing; it can drive the injection head of the injection molding machine to complete precise, stable and efficient movement and injection actions.

[0038] One section of the eccentric shaft 9 is located inside the first shaft mounting part 6, and they are rotatably connected by a bearing;

[0039] The first transmission component 11 is rotatably connected to the eccentric shaft 9. The side of the first transmission component 11 has a first extension rod, and the end of the first extension rod is fixedly connected to a sliding block 12. The second transmission component 13 is fixedly connected to the drive rod 8. The main body of the second transmission component 13 is sleeved on the drive rod 8. A fastening screw is provided on the side of the second transmission component 13 for fixing the second transmission component 13 and the drive rod 8. The side of the second transmission component 13 has a second extension rod, and the side of the second extension rod has a sliding hole. The sliding block 12 slides inside the sliding hole.

[0040] The main body of the telescopic component 14 is fixedly connected to the sliding block 12, and the telescopic end of the telescopic component 14 is fixedly connected to the inner wall of the sliding hole.

[0041] When in use, the telescopic component 14 moves, driving the first transmission component 11 and the second transmission component 13 to slide. When the first transmission component 11 and the second transmission component 13 slide relative to each other, the eccentric shaft 9 is driven to rotate, causing one end of the eccentric shaft 9 to make a circular motion (the other end rotates around its own axis), thereby driving the first transmission component 11 and the second transmission component 13 to rotate, thereby causing the drive rod 8 to rotate, thus realizing the function of the rocker arm.

[0042] The rocker arm bracket for injection molding machine used in injection molding part preparation provided by the present invention can improve the service life of injection molding machine and reduce maintenance costs compared with the prior art, thereby improving the production efficiency of injection molding.

[0043] In another embodiment of the present invention, please refer to the following: Figure 5 The eccentric shaft 9 includes a first shaft body 91, a connecting part 92, and a second shaft body 93. The connecting part 92 has a transverse structure. The first shaft body 91 and the second shaft body 93 are fixedly connected to both sides of the connecting part 92, and the first shaft body 91 and the second shaft body 93 are not concentric. The end of the second shaft body 93 away from the connecting part 92 is fixedly connected to a limiting part 94.

[0044] The first shaft 91 and the second shaft 93 are not concentric, forming an eccentric structure. The second shaft 93 is rotatably connected to the first shaft mounting part 6. The eccentric shaft 9 rotates around the center of the first shaft mounting part 6, the first shaft 91 undergoes circular motion, and the second shaft 93 rotates.

[0045] In another embodiment of the invention, please refer to Figures 1-6 The first adjusting bracket 5 includes a sliding member 51. A sliding groove is provided on the side of the box plate 4. The sliding member 51 slides inside the sliding groove. A spring 53 is fixedly connected to the top of the sliding member 51. The top of the spring 53 is fixedly connected to the top of the inner side of the sliding groove. A threaded rod 54 is fixedly connected to the bottom of the sliding member 51. An adjusting bracket 55 is threadedly connected to the bottom of the threaded rod 54. The bottom end of the adjusting bracket 55 is rotatably connected to the mounting plate 1 through the base 56.

[0046] In use, rotating the adjusting bracket 55 causes the threaded rod 54 to screw in, increasing the length of the first adjusting bracket 5, thereby ensuring that the top of the spring 53 is tightly supported on the side of the box plate 4.

[0047] In another embodiment of the invention, see [reference] Figures 1-6 The sliding groove has an inverted U-shaped opening on its side. A horizontal shaft 52 is fixedly connected to the side of the sliding member 51. The horizontal shaft 52 is located inside the inverted U-shaped opening. The inverted U-shaped opening is used to guide the horizontal shaft 52 and can limit the highest position of the sliding member 51 to slide upward.

[0048] In another embodiment of the invention, please refer to Figure 6The base 56 is fixedly connected to the mounting plate 1, and the bottom of the adjusting frame 55 is rotatably connected to the base 56, so that the adjusting frame 55 can rotate and rotate with the threaded rod 54.

[0049] In another embodiment of the invention, please refer to Figure 5 A magnetic block 10 is fixedly connected to the side of the connecting part 92 facing the mounting plate 1, and a mounting platform 16 is fixedly connected to the side of the mounting plate 1 facing the connecting part 92. A first electromagnet 17 and a second electromagnet 18 are provided on the upper surface of the mounting platform 16. The mounting platform 16 is located on the line connecting the center of the first shaft mounting part 6 and the center of the second shaft mounting part 7.

[0050] When the first transmission member 11 and the second transmission member 13 are located on the line connecting the center of the first shaft mounting part 6 and the center of the second shaft mounting part 7, the direction of the force of the first transmission member 11 or the second transmission member 13 extending or shortening coincides with the direction of the connecting line, and cannot drive the first transmission member 11 or the second transmission member 13 to rotate. At this time, the first electromagnet 17 and the second electromagnet 18 cooperate with the magnetic block 10 to form an unstable position, making it easy to rotate.

[0051] The first electromagnet 17 or the second electromagnet 18 generates magnetism, which repels the magnetic block 10, causing it to have a tendency to rotate. Depending on the direction of rotation, the first electromagnet 17 or the second electromagnet 18 is energized and magnetized.

[0052] In another embodiment of the invention, see [reference] Figure 6 and Figure 7 The first adjusting bracket 5 and the second adjusting bracket 15 have the same structure.

[0053] In another embodiment of the invention, please refer to Figures 1 to 4 Mounting holes 2 are provided on the side of mounting plate 1.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rocker arm bracket for injection molding machine used in injection molding part preparation, comprising a mounting plate (1), characterized in that, Also includes: Box plate (4), the side of the mounting plate (1) is fixedly connected to the connecting seat (3), the right side of the box plate (4) has a connecting ear, the connecting ear and the connecting seat (3) are rotatably connected by a shaft, and the side of the box plate (4) is provided with a first shaft mounting part (6) and a second shaft mounting part (7). First adjustment bracket (5) and second adjustment bracket (15). One end of the first adjustment bracket (5) is connected to the mounting plate (1) and the other end is connected to the box plate (4). One end of the second adjustment bracket (15) is connected to the mounting plate (1) and the other end is connected to the box plate (4). The first adjustment bracket (5) and the second adjustment bracket (15) are located on both sides of the connecting seat (3). The drive rod (8) is located inside the second shaft mounting part (7) and is rotatably connected to it by a bearing; An eccentric shaft (9) has a section located inside the first shaft mounting part (6) and is rotatably connected to it by a bearing. First transmission component (11) and second transmission component (13). The first transmission component (11) is rotatably connected to the eccentric shaft (9). The side of the first transmission component (11) has a first extension rod. The end of the first extension rod is fixedly connected to a sliding block (12). The second transmission component (13) is fixedly connected to the drive rod (8). The side of the second transmission component (13) has a second extension rod. The side of the second extension rod has a sliding hole. The sliding block (12) slides inside the sliding hole. Telescopic component (14), the main body of the telescopic component (14) is fixedly connected to the sliding block (12), and the telescopic end of the telescopic component (14) is fixedly connected to the inner wall of the sliding hole; The eccentric shaft (9) includes a first shaft body (91), a connecting part (92), and a second shaft body (93). The connecting part (92) has a transverse structure. The first shaft body (91) and the second shaft body (93) are fixedly connected to both sides of the connecting part (92), and the first shaft body (91) and the second shaft body (93) are not concentric. A limiting part (94) is fixedly connected to one end of the second shaft body (93) away from the connecting part (92). The first adjusting bracket (5) includes a sliding member (51). A sliding groove is provided on the side of the box plate (4). The sliding member (51) slides inside the sliding groove. A spring (53) is fixedly connected to the top of the sliding member (51). The top of the spring (53) is fixedly connected to the top of the inner side of the sliding groove. A threaded rod (54) is fixedly connected to the bottom of the sliding member (51). An adjusting bracket (55) is threadedly connected to the bottom of the threaded rod (54). The bottom end of the adjusting bracket (55) is rotatably connected to the mounting plate (1) through the base (56). A magnetic block (10) is fixedly connected to one side of the connecting part (92) facing the mounting plate (1), and a mounting platform (16) is fixedly connected to one side of the mounting plate (1) facing the connecting part (92). A first electromagnet (17) and a second electromagnet (18) are provided on the upper surface of the mounting platform (16). The mounting platform (16) is located on the line connecting the center of the first shaft mounting part (6) and the center of the second shaft mounting part (7).

2. The injection molding machine rocker arm support for injection molding part preparation as described in claim 1, characterized in that: The sliding groove has an inverted U-shaped opening on its side, and a horizontal shaft (52) is fixedly connected to the side of the sliding member (51). The horizontal shaft (52) is located inside the inverted U-shaped opening.

3. The injection molding machine rocker arm support for injection molding part preparation as described in claim 1, characterized in that: The base (56) is fixedly connected to the mounting plate (1), and the bottom of the adjustment frame (55) is rotatably connected to the base (56).

4. The injection molding machine rocker arm support for injection molding part preparation as described in claim 1, characterized in that: The first adjustment bracket (5) and the second adjustment bracket (15) have the same structure.

5. The injection molding machine rocker arm support for injection molding part preparation as described in claim 1, characterized in that: The mounting plate (1) has mounting holes (2) on its side.

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