Centrifugal impeller secondary ejection injection mold

Abstract

The present application relates to injection molding equipment technical field, especially to a kind of centrifugal impeller secondary ejection injection mold, its technical scheme includes mold upper plate, mold lower plate and mold frame, the lower end of the mold lower plate is equipped with injection base, the upper end of the injection base is provided with injection cavity base, the inside of the mold frame is provided with multiple combined die mechanisms;The combined die mechanism includes moving block, mounting piece, mounting block and lift mold mechanism, and the front end of the mounting piece is connected with driving cylinder.The injection mold is added with multiple combined die mechanisms and lift mold mechanism in the present application, and the combined die mechanism can be moved by itself, so that the injection part can be structured complete injection cavity, and the combined die mechanism moves during mold taking, so that mold taking is more relaxed, lift mold mechanism and combined die mechanism move together, when combined die mechanism spreads.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment technology, specifically to a centrifugal impeller secondary ejection injection mold. Background Technology

[0002] Injection mold technology is an important component of modern manufacturing. Its development has progressed from the manual mold stage to the simple mechanization stage, then to the microcomputer control stage, the all-electric injection molding stage, and now to the intelligent stage. With continuous technological advancements, the precision, efficiency, and quality of injection molds have been significantly improved. Secondary ejection technology, as an important innovation in injection mold technology, provides strong support for the manufacturing of complex parts such as centrifugal impellers. Centrifugal impellers are key components widely used in various mechanical equipment, and their manufacturing quality directly affects the performance and lifespan of the equipment. In the manufacturing process of centrifugal impellers, injection molds are an indispensable tool.

[0003] The existing technology still has the following drawbacks in its use:

[0004] In the existing injection molding process, the entire mold frame needs to be assembled by closing the mold, including multiple layers of frames stacked together. If the stacked injection mold frame is not pressed and aligned by a certain mechanism, it may lead to instability of the entire injection mold frame, which may cause accidents during the injection process. Furthermore, after injection molding, in order to facilitate demolding, after the upper mounting layer is ejected once, the injection cavity part needs to be ejected a second time. Otherwise, too many parts need to be removed for demolding, and the relatively complex structure of the centrifugal impeller makes demolding inconvenient.

[0005] In view of this, we propose a centrifugal impeller secondary ejection injection mold to solve the existing problems. Summary of the Invention

[0006] The purpose of this invention is to provide a centrifugal impeller secondary ejection injection mold to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a centrifugal impeller secondary ejection injection mold, comprising an upper mold plate, a lower mold plate, and a mold frame, wherein an injection base is installed on the upper end of the lower mold plate, and an injection cavity base is provided on the upper end of the injection base; the mold frame is provided with a one-to-one corresponding multi-group mold closing mechanism and a multi-group mold lifting mechanism, and a drive cylinder is connected to one side of the mold closing mechanism.

[0008] During the mold separation process, the driving cylinder drives the mold closing mechanism to move and pushes the mold lifting mechanism upward to push out the injection cavity base, so as to facilitate mold removal.

[0009] Preferably, the closing mechanism comprises a moving block, a mounting piece, a mounting block and a mold lifting mechanism, the front end of the mounting piece is connected with a driving cylinder, the rear end of the mounting piece is connected with a control rod, the mounting piece is connected with the moving block through the control rod, the upper end of the moving block is fixedly provided with a mounting plate, the upper end of the mounting plate is provided with a linkage rod, one end of the linkage rod away from the mounting plate is connected with a sliding block, the sliding block is slidingly installed on the mounting block, the front end of the sliding block is connected with a closing block, and a moving bolt is installed in the sliding block.

[0010] Preferably, the mold lifting mechanism comprises a fixed table, a bottom plate, a first telescopic rod and a second telescopic rod, the first telescopic rod and the second telescopic rod are upwardly and penetratively installed on the bottom plate through the fixed table, the top of the first telescopic rod is fixedly connected with the lower end of the moving bolt, and the top of the second telescopic rod is provided with a supporting table.

[0011] Preferably, the mounting piece is provided with a moving rack, the moving rack is fixedly connected with the control rod, the moving rack is outwardly connected with a main gear, the main gear is outwardly meshingly connected with a slave gear, the slave gear is internally installed with a lifting rod, and the lifting rod is installed with a fixed pressing pad and a moving pressing pad at the upper end.

[0012] The driving cylinder drives the control rod to move inwardly, and the moving rack, the main gear and the slave gear are meshingly connected, so that the moving pressing pad is pressed downwardly to compact the mold frame.

[0013] Preferably, the fixed pressing pad is fixedly installed on the surface of the upper mold plate, and the lifting rod penetrates the fixed pressing pad and is upwardly connected with the moving pressing pad.

[0014] Preferably, the inside of the mold frame is fixedly provided with a moving rod at the upper end, and the moving bolt is slidingly installed on the moving bolt.

[0015] Preferably, the moving bolt is a bolt block with an inclined angle, the inside of the sliding block is provided with a slot with an inclined angle, and the moving bolt can be inserted into the sliding block.

[0016] Preferably, the upper mold plate is installed with an injection port at the center, the injection port is downwardly connected with an injection pipe, and the lower end of the injection pipe is connected with an injection cavity.

[0017] Preferably, the lower mold plate is installed with a plurality of ejection rods, the ejection rods are upwardly connected with an ejection layer, springs are wound around the ejection rods, and the side of the mold frame is provided with a plurality of fixed bolts.

[0018] Preferably, seven closing mechanisms are equidistantly installed in the inside of the mold frame, and the center connection of the closing mechanism is provided with an injection cavity.

[0019] Compared with the prior art, the present application has the beneficial effects that:

[0020] The present application can make the injection molding part construct a complete injection molding cavity through the self-moving mold closing mechanism, and the mold closing mechanism moves during the mold taking process, so that the mold taking is more easy, the mold lifting mechanism and the mold closing mechanism move together, when the mold closing mechanism spreads, the moving bolt moves upward, the mold lifting mechanism pushes the injection molding base upward at the same time, further enhancing the convenience in the mold taking process; during the mold closing mechanism closing process, the moving bolt inserts downward to stabilize the mold closing mechanism, and through the meshing relationship of the moving rack and the plurality of gears, the movement of the moving pressure pad is driven, after the mold closing mechanism constructs a complete injection molding cavity, the moving pressure pad can stabilize and press the overall injection molding frame. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0022] Figure 2 It is a three-dimensional structure schematic diagram of the present application;

[0023] Figure 3 It is a three-dimensional structure schematic diagram of the present application;

[0024] Figure 4 It is a three-dimensional structure schematic diagram of the mold closing mechanism of the present application;

[0025] Figure 5 It is a front view structure schematic diagram of the mold closing mechanism of the present application;

[0026] Figure 6 It is a connection structure schematic diagram of the mold closing mechanism and the injection molding base of the present application;

[0027] Figure 7 It is a connection structure schematic diagram of the mounting member and the moving pressure pad of the present application.

[0028] In the figure: 1, mold upper plate; 2, mold frame; 3, mold lower plate; 4, injection molding port; 5, fixed bolt; 6, ejection layer; 7, injection molding pipe; 8, injection molding cavity; 9, mold closing mechanism; 10, ejection rod; 11, injection molding base; 12, spring; 13, mold closing block; 14, mounting moving rod; 15, moving bolt; 16, sliding block; 17, connecting rod; 18, mounting block; 19, mounting plate; 20, moving block; 21, control rod; 22, mounting member; 23, driving cylinder; 24, mold lifting mechanism; 25, injection molding cavity base; 26, support table; 27, fixed table; 28, second telescopic rod; 29, bottom plate; 30, first telescopic rod; 31, moving pressure pad; 32, fixed pressure pad; 33, lifting rod; 34, main gear; 35, driven gear; 36, moving rack. Detailed Implementation

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figures 1-7 As shown, the present invention proposes a centrifugal impeller secondary ejection injection mold, which includes an upper mold plate 1, a lower mold plate 3 and a mold frame 2. An injection base 11 is installed on the upper end of the lower mold plate 3, and an injection cavity base 25 is provided on the upper end of the injection base 11. Multiple mold combination mechanisms 9 are provided inside the mold frame 2.

[0032] The upper mold plate 1, the lower mold plate 3, and the mold frame 2 together constitute a complete injection mold. The injection cavity base 25 is the bottom mechanism of the injection molding cavity. The mold closing mechanism 9 and the injection cavity base 25 are combined to form a complete injection cavity 8.

[0033] The mold closing mechanism 9 includes a moving block 20, a mounting component 22, a mounting block 18, and a mold lifting mechanism 24. The front end of the mounting component 22 is connected to a drive cylinder 23, and the rear end of the mounting component 22 is connected to a control rod 21. The mounting component 22 is connected to the moving block 20 through the control rod 21. The upper end of the moving block 20 is fixed with a mounting plate 19. The upper end of the mounting plate 19 is equipped with a connecting rod 17. The end of the connecting rod 17 away from the mounting plate 19 is connected to a sliding block 16. The sliding block 16 is slidably mounted on the mounting block 18. The front end of the sliding block 16 is connected to a mold closing module 13. A moving pin 15 is installed inside the sliding block 16. The lower end of the moving pin 15 is connected to the mold lifting mechanism 24.

[0034] The drive cylinder 23 controls the control lever 21 to move, thereby moving the moving block 20. The moving block 20 moves the mounting plate 19, and the mounting plate 19 moves the sliding block 16 via the connecting rod 17. When the sliding block 16 moves outward, the moving pin 15 is subjected to pressure during the movement of the sliding block 16, and thus the moving pin 15 moves upward via the mounting moving rod 14. When the sliding block 16 moves inward, the moving pin 15 is affected by its own weight, and thus the moving pin 15 will insert into the opening groove in the sliding block 16.

[0035] The mold lifting mechanism 24 includes a fixed platform 27, a base plate 29, a first telescopic rod 30 and a second telescopic rod 28. The first telescopic rod 30 and the second telescopic rod 28 are installed through the fixed platform 27 at the upper end of the base plate 29. The top of the first telescopic rod 30 is fixed to the lower end of the movable pin 15. The top of the second telescopic rod 28 is provided with a support platform 26, which is installed at the lower end of the injection cavity base 25.

[0036] In the process that the moving bolt 15 moves following the sliding block 16, in the process that the moving bolt 15 moves upward, the first telescopic rod 30 moves upward following the moving bolt 15, the second telescopic rod 28 moves synchronously following the first telescopic rod 30, the second telescopic rod 28 can drive the support table 26 to move when moving upward, in the process that the support table 26 moves, the injection cavity base 25 can drive the formed product to move after being moved by the support table 26, so as to facilitate mold taking.

[0037] The driving cylinder 23 drives the moving block 20 and the mounting plate 19 to move outward, drives the sliding block 16 and the mold closing block 13 to open the mold through the connecting rod 17, and the moving bolt 15 moves upward as a whole under the pressure applied by the sliding block 16 in the moving process, and then drives the first telescopic rod 30 and the second telescopic rod 28 to move upward synchronously, so as to eject the injection cavity base 25 and facilitate mold taking.

[0038] Further, the mounting piece 22 is provided with a moving rack 36, the moving rack 36 is fixedly connected with the control rod 21, the moving rack 36 is connected with a main gear 34 outward, the main gear 34 is connected with a from gear 35 outward, the from gear 35 is internally provided with a lifting rod 33, and the lifting rod 33 is provided with a fixed pressing pad 32 and a moving pressing pad 31 at the upper end;

[0039] The driving cylinder 23 drives the control rod 21 to move, the control rod 21 is fixedly connected with the moving rack 36, the moving rack 36 moves following the main gear 34, the main gear 34 drives the from gear 35 to move, the from gear 35 rotates to drive the lifting rod 33 to move, the lifting rod 33 moves to drive the moving pressing pad 31 to move, when the control rod 21 moves outward, the moving rack 36, the main gear 34 and the from gear 35 are in meshing connection, so as to drive the lifting rod 33 to rotate and move downward, and the moving pressing pad 31 is close to the fixed pressing pad 32 to press the whole injection mold frame; when the control rod 21 moves inward, the lifting rod 33 rotates and moves upward, and the moving pressing pad 31 is away from the fixed pressing pad 32 to avoid pressing the whole injection mold frame.

[0040] The driving cylinder 23 drives the control rod 21 to move inward, and the moving rack 36 moves inward through the meshing relationship of the moving rack 36, the main gear 34 and the from gear 35, so as to drive the moving pressing pad 31 to press downward and stabilize the whole mold frame 2.

[0041] Further, the fixed pressing pad 32 is fixedly installed on the surface of the mold upper plate 1, and the lifting rod 33 penetrates the fixed pressing pad 32 and is connected with the moving pressing pad 31 upward.

[0042] The lifting rod 33 can drive the moving pressing pad 31 to move, thereby pressing the whole frame, avoiding other conditions in the injection molding process, and the upper surface of the fixed pressing pad 32 is provided with an elastic layer, which can avoid damage to the fixed pressing pad 32 during the movement of the moving pressing pad 31.

[0043] Further, the inside of the mold frame 2 is fixed with the installation moving rod 14, and the moving bolt 15 is slidably installed on the moving bolt 15.

[0044] The moving bolt 15 is pressed by the side sliding block 16 and can slide on the installation moving rod 14 to a certain extent.

[0045] Further, the moving bolt 15 is a bolt block with an inclined angle, and the sliding block 16 is internally provided with a slotted groove with an inclined angle, and the moving bolt 15 can be inserted into the sliding block 16.

[0046] Through a certain inclined angle, the moving bolt 15 can smoothly operate in the slotted groove in the sliding block 16 during the movement of the sliding block 16.

[0047] The above specific embodiments are only several preferred embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A centrifugal impeller secondary ejection injection mold comprising a mold upper plate (1), a mold lower plate (3) and a mold frame (2), characterized in that: The lower mold plate (3) is provided with an injection base (11) at the upper end, and the injection base (11) is provided with an injection cavity base (25) at the upper end. The driving cylinder (23) drives the mold closing mechanism (9) to move to realize the mold opening process, and drives the mold lifting mechanism (24) to push out the injection cavity base (25) upward, so as to facilitate the mold taking. The mold closing mechanism (9) comprises a moving block (20), a mounting piece (22), a mounting block (18) and a mold lifting mechanism (24), the front end of the mounting piece (22) is connected with the driving cylinder (23), the rear end of the mounting piece (22) is connected with a control rod (21), the mounting piece (22) is connected with the moving block (20) through the control rod (21), the upper end of the moving block (20) is fixedly provided with a mounting plate (19), the upper end of the mounting plate (19) is provided with a connecting rod (17), the end of the connecting rod (17) away from the mounting plate (19) is connected with a sliding block (16), the sliding block (16) is slidingly installed on the mounting block (18), the front end of the sliding block (16) is connected with a mold closing block (13), the sliding block (16) is internally provided with a moving pin (15), and the lower end of the moving pin (15) is connected with the mold lifting mechanism (24). The mounting piece (22) is internally provided with a moving rack (36), the moving rack (36) is fixedly connected with the control rod (21), the moving rack (36) is outwardly connected with a main gear (34), the main gear (34) is outwardly meshingly connected with a driven gear (35), and the driven gear (35) is internally provided with a lifting rod (33). The driving cylinder (23) drives the control rod (21) to further drive the moving rack (36) to move inward, and through the meshing relationship of the moving rack (36), the main gear (34) and the driven gear (35), the moving pressure pad (31) is driven to press down and compact, and the mold frame (2) is stable.

2. A two-stage ejection injection mold for a centrifugal impeller according to claim 1, characterized in that: The mold lifting mechanism (24) comprises a fixed table (27), a bottom plate (29), a first telescopic rod (30) and a second telescopic rod (28), the first telescopic rod (30) and the second telescopic rod (28) are upwardly penetrated and installed on the bottom plate (29) through the fixed table (27), the top of the first telescopic rod (30) is fixedly connected with the lower end of the moving pin (15), and the top of the second telescopic rod (28) is provided with a supporting table (26).

3. A two-stage ejection injection mold for a centrifugal impeller according to claim 1, characterized in that: The fixed pressure pad (32) is fixedly installed on the surface of the upper mold plate (1), and the lifting rod (33) penetrates the fixed pressure pad (32) and is upwardly connected with the moving pressure pad (31).

4. A two-stage ejection plastic injection mold for a centrifugal impeller according to claim 1, characterized in that: The mold frame (2) is internally and fixedly provided with a moving rod (14) at the upper end.

5. A two-stage ejection injection mold for a centrifugal impeller according to claim 4, characterized in that: The mobile bolt (15) is a bolt block with an inclined angle as a whole, the sliding block (16) is internally provided with a slotted hole with an inclined angle, and the mobile bolt (15) can be inserted into the sliding block (16) in cooperation.

6. A two-stage ejection plastic injection mold for a centrifugal impeller according to claim 1, characterized in that: The mold upper plate (1) is provided with an injection port (4) at the center, the injection port (4) is connected with an injection pipe (7) downward, and the lower end of the injection pipe (7) is connected with an injection cavity (8).

7. A two-stage ejection plastic injection mold for a centrifugal impeller according to claim 1, characterized in that: The mold lower plate (3) is provided with a plurality of ejection rods (10), the ejection rod (10) is connected with an ejection layer (6) upward, the ejection rod (10) is wound with a spring (12), and the mold frame (2) is provided with a plurality of fixed bolts (5) on the side.

8. A two-stage ejection plastic injection mold for a centrifugal impeller according to claim 1, characterized in that: Seven sets of mold closing mechanisms (9) are installed in the mold frame (2) at equal intervals, and the mold closing mechanism (9) is connected at the center and is provided with an injection cavity (8).

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