An injection mold for automotive parts with a rapid injection molding structure

Abstract

This invention discloses an injection mold for automotive parts with a rapid injection molding structure, relating to the field of injection mold technology. It includes a base with a movable component at its upper end for venting gas from the mold after injection. When the drive unit is activated, the injection mold synchronously rotates a crankshaft located at its output end. Since a first push rod and a second push rod are rotatably mounted on the outer surface of the crankshaft, the first and second push rods alternately extend and retract. Simultaneously, a slider pushes a pull rod to reciprocate within the venting block's inner cavity, thereby allowing gas to circulate within the injection mold. The gas is then vented through the vent pipe on the venting block, ensuring the overall quality after molding.

Description

Technical Field

[0001] This invention relates to injection mold technology, and more specifically to an injection mold for automotive parts with a rapid injection structure. Background Technology

[0002] Processing plastics into automotive parts is a complex process, and injection molding is one of the important steps in this process and also the main method of plastic molding. An injection molding machine is a special equipment for injection molding. Its basic principle is to use the extrudability and moldability of plastics. Plastics are added from the hopper of the injection molding machine, where they are heated and melted and kept in a flowing state. Then, under the high pressure of the plunger or screw, they are quickly injected into a closed mold with a lower temperature through the nozzle at the front of the barrel. After cooling and shaping, the molten plastic solidifies into the desired plastic part.

[0003] In existing automotive parts injection molding processes, the injection speed is slow and the injection rate and degree of injection are uneven, which can easily affect the quality of the subsequent molding. At the same time, poor venting may cause gas to not be effectively discharged during the injection process, resulting in air bubbles or pores inside the product, which affects the molding quality. Therefore, an injection mold for automotive parts with a rapid injection structure has been developed. Summary of the Invention

[0004] The purpose of this invention is to provide an injection mold for automotive parts with a rapid injection molding structure, so as to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an injection mold for automotive parts with a rapid injection molding structure, comprising a base, wherein a movable component is provided at the upper end of the base, and the movable component is used to discharge gas from the mold after injection molding;

[0006] The movable component includes a drive unit connected to the base. A crankshaft is rotatably mounted at the end of the drive unit. A first push rod and a second push rod are rotatably mounted on the outer surface of the crankshaft, and the first push rod and the second push rod are arranged sequentially on the outer surface of the crankshaft. A slider is rotatably mounted at the end of the first push rod and the second push rod away from the crankshaft. A pull rod is provided at the end of the slider. An exhaust block is provided at the upper end of the base. The outer surface of the pull rod is slidably connected to the inner wall of the exhaust block, and one end of the exhaust block is connected to the injection molding machine.

[0007] A swing block is provided at the end of the crankshaft. A movable rod is rotatably mounted at one end of the swing block away from the center. A rotating block is rotatably mounted at the end of the movable rod away from the swing block. A base plate is provided at the upper end of the base plate. A limit block is provided at the upper end of the base plate. The upper end of the limit block is rotatably connected to the outer surface of the rotating block. A drive rod is rotatably mounted at the end of the rotating block. A rotating cylinder is rotatably mounted at the end of the drive rod away from the rotating block. The lower end of the rotating cylinder is rotatably connected to the upper end of the exhaust block.

[0008] A rotating rod is provided at the upper end of the rotating drum, a connecting member is provided at the upper end of the rotating rod, a partition plate is provided at the end of the connecting member, and a conveying cylinder is provided on the outer surface of the rotating rod and at the upper end of the rotating drum. A transmission plate is provided on the inner wall of the conveying cylinder, and one end of the transmission plate is attached to the end of the partition plate.

[0009] A connecting assembly, which is assembled at the end of the conveying cylinder, is used to connect to an external material conveying end.

[0010] As a further optimization of the present invention, a groove is provided at the upper end of the base plate, and the inner wall of the groove is slidably connected to the outer surface of the slider.

[0011] As a further optimization of the present invention, a connecting plate is provided on the outer surface of the slider, and a limiting plate is provided on the outer surface of the pull rod, wherein the outer surface of the limiting plate is slidably connected to the end of the connecting plate.

[0012] As a further optimization of the present invention, an exhaust pipe is provided on the outer surface of the exhaust block, and the end of the exhaust pipe is connected to the inner cavity of the exhaust block.

[0013] As a further optimization of the present invention, the connecting assembly includes a threaded cylinder connected to the conveying cylinder, and a connecting cylinder is provided at the end of the threaded cylinder, and the threaded cylinder communicates with the connecting cylinder.

[0014] As a further optimization of the present invention, an adjustment groove is provided on the outer surface of the connecting cylinder, and a movable plate is slidably installed on the inner wall of the adjustment groove.

[0015] As a further optimization of the present invention, a slot is provided at one end of the movable plate, and a snap-fit ​​rod is provided at one end of the connecting cylinder, with the outer surface of the snap-fit ​​rod slidably connected to the inner wall of the slot.

[0016] As a further optimization of the present invention, the outer surface of the connecting cylinder is provided with a first elastic element, and the end of the first elastic element away from the connecting cylinder is connected to the movable plate.

[0017] As a further optimization of the present invention, the inner cavity of the connecting cylinder is provided with a second elastic element, one end of which is connected to the connecting cylinder.

[0018] As a further optimization of the present invention, the inner cavity of the connecting cylinder is provided with a flow divider plate, and the end of the flow divider plate is connected to the end of the second elastic member.

[0019] Compared with the prior art, the present invention provides an injection mold for automotive parts with a rapid injection structure. When the drive component is started, it synchronously drives the crankshaft located at its output end to rotate. Since the outer surface of the crankshaft is rotatably mounted with a first push rod and a second push rod, the first push rod and the second push rod alternately extend and retract. At the same time, the slider pushes the pull rod to reciprocate and extend and retract in the inner cavity of the vent block, thereby allowing the gas inside the injection mold to circulate. The gas inside the injection mold is then discharged through the vent pipe on the vent block, ensuring the overall quality after molding.

[0020] The outer surface of the threaded cylinder is connected to the inner wall of the conveying cylinder, and the connection is equipped with rubber or other sealing components to ensure the sealing of the raw material output. At the same time, the externally connected transmission pipe is clamped by a movable plate, thereby improving the efficiency of subsequent maintenance or replacement of different raw materials. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 This is a first sectional view of the overall internal structure provided in an embodiment of the present invention;

[0024] Figure 3 This is a second sectional view of the overall internal structure provided in an embodiment of the present invention;

[0025] Figure 4 This is a first schematic diagram of the structure of the active component portion provided in an embodiment of the present invention;

[0026] Figure 5 This is a second schematic diagram of the structure of the active component portion provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection component structure provided in an embodiment of the present invention;

[0028] Figure 7 This is a first cross-sectional view of the internal structure of the connection component provided in an embodiment of the present invention;

[0029] Figure 8 This is a second cross-sectional view of the internal structure of the connection component provided in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 2. Movable component; 3. Connecting component; 21. Driving component; 22. First push rod; 23. Crankshaft; 24. Second push rod; 25. Swing block; 26. Movable rod; 27. Limiting block; 271. Rotating block; 272. Driving rod; 273. Rotating cylinder; 274. Rotating rod; 275. Adapter; 276. Partition plate; 277. Transmission plate; 278. Conveying cylinder; 28. Base plate; 281. Slide groove; 282. Slider; 283. Connecting plate; 284. Limiting plate; 285. Pull rod; 29. ​​Exhaust block; 291. Exhaust pipe; 31. Connecting cylinder; 311. Adjusting groove; 32. Threaded cylinder; 33. Movable plate; 34. First elastic element; 35. Second elastic element; 36. Slot; 37. Snap-fit ​​rod; 38. Diverter plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example: Please refer to Figures 1-8An injection mold for automotive parts with a rapid injection structure includes a base 1, and a movable component 2 is provided at the upper end of the base 1 to discharge gas inside the mold after injection.

[0035] In this scheme, the base 1 is set on one side of the injection mold, and the end of the movable component 2 is connected to the outer surface of the injection mold. At the same time, the movable component 2 conveys the raw materials to the injection mold and discharges the gas inside the injection mold.

[0036] Furthermore, the movable component 2 includes a drive member 21 connected to the base 1. A crankshaft 23 is rotatably mounted at the end of the drive member 21. A first push rod 22 and a second push rod 24 are rotatably mounted on the outer surface of the crankshaft 23, and the first push rod 22 and the second push rod 24 are arranged sequentially on the outer surface of the crankshaft 23. A slider 282 is rotatably mounted at the end of the first push rod 22 and the second push rod 24 away from the crankshaft 23. A pull rod 285 is provided at the end of the slider 282. An exhaust block 29 is provided at the upper end of the base 1. The outer surface of the pull rod 285 is slidably connected to the inner wall of the exhaust block 29, and one end of the exhaust block 29 is connected to the injection molding machine. An vent pipe 291 is provided on the outer surface of the exhaust block 29, and the end of the vent pipe 291 communicates with the inner cavity of the exhaust block 29.

[0037] In this embodiment, the driving component 21 is a device with power output, such as a motor, and is connected to an external control device. When the driving component 21 is started, it synchronously drives the crankshaft 23 located at its output end to rotate. Since the first push rod 22 and the second push rod 24 are rotatably mounted on the outer surface of the crankshaft 23, the first push rod 22 and the second push rod 24 alternately extend and retract. At the same time, the slider 282 pushes the pull rod 285 to reciprocate and extend and retract in the inner cavity of the vent block 29, thereby allowing the gas inside the injection mold to circulate. The gas inside the injection mold is then discharged through the vent pipe 291 on the vent block 29, ensuring the overall quality after molding.

[0038] The control device can use a microcontroller as the control terminal. In this embodiment, the microcontroller is a typical embedded microcontroller unit, consisting of an arithmetic logic unit (ALU), a controller, memory, input / output devices, etc., essentially a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its biggest advantage is its small size, allowing it to be placed inside the instrument, but it has limited storage capacity, simple input / output interfaces, and low power consumption.

[0039] Furthermore, a swing block 25 is provided at the end of the crankshaft 23. A movable rod 26 is rotatably mounted at one end of the swing block 25 away from the center. A rotating block 271 is rotatably mounted at the end of the movable rod 26 away from the swing block 25. A base plate 28 is provided at the upper end of the base 1. A limit block 27 is provided at the upper end of the base plate 28. The upper end of the limit block 27 is rotatably connected to the outer surface of the rotating block 271. A drive rod 272 is rotatably mounted at the end of the rotating block 271. A rotating cylinder 273 is rotatably mounted at the end of the drive rod 272 away from the rotating block 271. The lower end of the rotating cylinder 273 is rotatably connected to the upper end of the exhaust block 29.

[0040] A rotating rod 274 is provided at the upper end of the rotating drum 273. A connecting member 275 is provided at the upper end of the rotating rod 274. A partition plate 276 is provided at the end of the connecting member 275. Meanwhile, a conveying drum 278 is provided on the outer surface of the rotating rod 274 and at the upper end of the rotating drum 273. A transmission plate 277 is provided on the inner wall of the conveying drum 278, and one end of the transmission plate 277 is attached to the end of the partition plate 276.

[0041] Specifically, when the crankshaft 23 rotates, it synchronously drives the swing block 25 located at its end to rotate. Since the movable rod 26 is rotatably mounted on the outer surface of the swing block 25 and is far from the middle position of the swing block 25, it pushes the movable rod 26 to reciprocate when the swing block 25 rotates.

[0042] Simultaneously, when the movable rod 26 moves, it works in tandem with the rotating block 271 to push the drive rod 272, which is rotatably mounted at the end of the rotating block 271, to reciprocate. When the drive rod 272 moves, it pushes the rotating drum 273 to rotate around the connection point with the exhaust block 29, thereby driving the rotating rod 274 connected to the rotating drum 273 to rotate.

[0043] When the rotating rod 274 rotates, it drives the partition plate 276 to rotate in conjunction with the adapter 275. The adapter 275 consists of two bevel gears that mesh with each other, causing the force transmitted by the rotating rod 274 to be transferred laterally, thereby causing the partition plate 276 to rotate. Since the partition plate 276 is in contact with the transmission plate 277, which has multiple sets of through holes for conveying raw materials, the partition plate 276 consists of multiple sets of blades, and the width of the blades is greater than the diameter of the through holes. The partition plate 276 controls the conveying of raw materials to ensure the accuracy of the material conveying.

[0044] Furthermore, a groove 281 is provided at the upper end of the base plate 28, and the inner wall of the groove 281 is slidably connected to the outer surface of the slider 282.

[0045] The outer surface of the slider 282 is provided with a connecting plate 283, and the outer surface of the pull rod 285 is provided with a limiting plate 284. The outer surface of the limiting plate 284 is slidably connected to the end of the connecting plate 283.

[0046] Specifically, the slider 282 is limited by the groove 281 on the base plate 28, so that the slider 282 is stable when moving and prevents it from falling off the set trajectory. Furthermore, it is slidably connected to the limiting plate 284 on the other pull rod 285 through the connecting plate 283, so that the two connecting plates 283 are arranged in a cross shape, thereby enhancing the overall stability of the pull rod 285.

[0047] Furthermore, the connecting component 3, which is assembled at the end of the conveying cylinder 278, is used to connect to the external material conveying end.

[0048] The connecting assembly 3 includes a threaded cylinder 32 connected to the conveying cylinder 278. A connecting cylinder 31 is provided at the end of the threaded cylinder 32, and the threaded cylinder 32 communicates with the connecting cylinder 31. An adjusting groove 311 is provided on the outer surface of the connecting cylinder 31, and a movable plate 33 is slidably installed on the inner wall of the adjusting groove 311.

[0049] In this embodiment, the outer surface of the threaded cylinder 32 is connected to the inner wall of the conveying cylinder 278, and the connection is provided with a sealing component such as rubber to ensure the sealing of the raw material output. At the same time, the externally connected transmission pipe is clamped by the movable plate 33, thereby improving the efficiency of subsequent maintenance or replacement of different raw materials.

[0050] Furthermore, one end of the movable plate 33 is provided with a slot 36, and one end of the connecting cylinder 31 is provided with a snap-fit ​​rod 37, the outer surface of the snap-fit ​​rod 37 being slidably connected to the inner wall of the slot 36.

[0051] The outer surface of the connecting cylinder 31 is provided with a first elastic element 34, and the end of the first elastic element 34 away from the connecting cylinder 31 is connected to the movable plate 33.

[0052] The inner cavity of the connecting cylinder 31 is provided with a second elastic member 35, one end of which is connected to the connecting cylinder 31. The inner cavity of the connecting cylinder 31 is provided with a flow divider 38, the end of which is connected to the end of the second elastic member 35.

[0053] Specifically, the movable plate 33 is limited by the slot 36 and the snap-fit ​​rod 37, so that it is within a certain range when sliding on the inner wall of the adjustment groove 311. At the same time, the first elastic element 34 and the second elastic element 35 are elastic components such as springs. When the movable plate 33 is pressed, the first elastic element 34 is compressed, so that the hole on the movable plate 33 fits with the inner diameter of the connecting cylinder 31, which facilitates the insertion of the external transmission pipe into the interior of the connecting cylinder 31. After the movable plate 33 is released, the force of the first elastic element 34 restores the movable plate 33 to its initial position, thereby fixing the transmission pipe.

[0054] When the transfer pipe enters the connecting cylinder 31, it is fitted with the flow divider 38 and the second elastic element 35 to make it stably connected with the inner wall of the threaded cylinder 32, so that the raw material is stably transferred to the injection mold.

[0055] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An injection mold for automotive parts with a rapid injection molding structure, characterized in that, Includes a base (1), and a movable component (2) is provided at the upper end of the base (1) to discharge the gas in the mold after injection molding through the movable component (2); The active component (2) includes a drive member (21) connected to the base (1). A crankshaft (23) is rotatably mounted at the end of the drive member (21). A first push rod (22) and a second push rod (24) are rotatably mounted on the outer surface of the crankshaft (23). The first push rod (22) and the second push rod (24) are arranged sequentially on the outer surface of the crankshaft (23). A slider (282) is rotatably mounted at the end of the first push rod (22) and the second push rod (24) away from the crankshaft (23). A pull rod (285) is provided at the end of the slider (282). An exhaust block (29) is provided at the upper end of the base (1). The outer surface of the pull rod (285) is slidably connected to the inner wall of the exhaust block (29). One end of the exhaust block (29) is connected to the injection molding machine. The crankshaft (23) is provided with a swing block (25) at its end. A movable rod (26) is rotatably mounted at one end of the swing block (25) away from the center. A rotating block (271) is rotatably mounted at the end of the movable rod (26) away from the swing block (25). A base plate (28) is provided at the upper end of the base (1). A limit block (27) is provided at the upper end of the base plate (28). The upper end of the limit block (27) is rotatably connected to the outer surface of the rotating block (271). A drive rod (272) is rotatably mounted at the end of the rotating block (271). A rotating cylinder (273) is rotatably mounted at the end of the drive rod (272) away from the rotating block (271). The lower end of the rotating cylinder (273) is rotatably connected to the upper end of the exhaust block (29). A rotating rod (274) is provided at the upper end of the rotating cylinder (273), and a connecting piece (275) is provided at the upper end of the rotating rod (274). A partition plate (276) is provided at the end of the connecting piece (275). Meanwhile, a conveying cylinder (278) is provided on the outer surface of the rotating rod (274) and at the upper end of the rotating cylinder (273). A transmission plate (277) is provided on the inner wall of the conveying cylinder (278), and one end of the transmission plate (277) is attached to the end of the partition plate (276). A connecting component (3), which is assembled at the end of the conveying cylinder (278), is used to connect to an external conveying end.

2. The injection mold for automotive parts with a rapid injection molding structure according to claim 1, characterized in that, The upper end of the base plate (28) is provided with a sliding groove (281), and the inner wall of the sliding groove (281) is slidably connected to the outer surface of the slider (282).

3. The injection mold for automotive parts with a rapid injection molding structure according to claim 2, characterized in that, The outer surface of the slider (282) is provided with a connecting plate (283), and the outer surface of the pull rod (285) is provided with a limiting plate (284). The outer surface of the limiting plate (284) is slidably connected to the end of the connecting plate (283).

4. The injection mold for automotive parts with a rapid injection molding structure according to claim 1, characterized in that, The outer surface of the exhaust block (29) is provided with an exhaust pipe (291), and the end of the exhaust pipe (291) is connected to the inner cavity of the exhaust block (29).

5. The injection mold for automotive parts with a rapid injection molding structure according to claim 1, characterized in that, The connecting assembly (3) includes a threaded cylinder (32) connected to the conveying cylinder (278), and a connecting cylinder (31) is provided at the end of the threaded cylinder (32), and the threaded cylinder (32) is in communication with the connecting cylinder (31).

6. The injection mold for automotive parts with a rapid injection molding structure according to claim 5, characterized in that, The outer surface of the connecting cylinder (31) is provided with an adjustment groove (311), and a movable plate (33) is slidably installed on the inner wall of the adjustment groove (311).

7. An injection mold for automotive parts with a rapid injection molding structure according to claim 6, characterized in that, The movable plate (33) has a slot (36) at one end, and the connecting cylinder (31) has a snap-fit ​​rod (37) at one end. The outer surface of the snap-fit ​​rod (37) is slidably connected to the inner wall of the slot (36).

8. The injection mold for automotive parts with a rapid injection molding structure according to claim 7, characterized in that, The outer surface of the connecting cylinder (31) is provided with a first elastic element (34), and the end of the first elastic element (34) away from the connecting cylinder (31) is connected to the movable plate (33).

9. An injection mold for automotive parts with a rapid injection molding structure according to claim 8, characterized in that, The inner cavity of the connecting cylinder (31) is provided with a second elastic element (35), and one end of the second elastic element (35) is connected to the connecting cylinder (31).

10. An injection mold for automotive parts with a rapid injection molding structure according to claim 9, characterized in that, The inner cavity of the connecting cylinder (31) is provided with a flow divider (38), and the end of the flow divider (38) is connected to the end of the second elastic member (35).

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