An injection mold for powder metallurgy products containing bent pipe structures

Abstract

The present invention discloses an injection mold for powder metallurgy products containing curved tube structures, comprising a panel, one side of the ejector panel is connected to an air inlet, and the inner wall of one end of the air inlet is provided with a positioning slot, the inner wall of the positioning slot is plugged with a positioning plug, and the other end of the positioning plug is fixedly connected to an air inlet pipe, the outer wall of the air inlet pipe is provided with a slide groove, and the inner wall of the slide groove is plugged with a slider, one side of the slider is fixedly connected with a self-locking block, and the upper end of the slider is fixedly connected with a spring, and the upper end of the spring is fixedly connected to the inner wall of the slide groove. The hot runner plate, A plate and B plate of the injection mold for powder metallurgy products containing curved tube structures can be telescopically opened and closed on the lock buckle by the upper locking block and the lower locking block to realize the order of mold opening, and when the A plate and the B plate are opened, they can be flipped open and closed by the connecting rod, the rotating shaft, the guide groove, the movable block and the guide block, so that the mold opening is more stable and the defects such as product edge strain and fragmentation can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy injection moulds, in particular to an injection mould for powder metallurgy products containing bent pipe structures. Background Art

[0002] Powder metallurgy products are divided into two processes: extrusion and injection molding. Extrusion is mostly used for products with low precision, low density, large products, and some products that rely on powder metallurgy with curved tube structures. (Such as mechanical equipment, etc.) With the progress of the times and the development of science and technology, such products have also appeared in some high-precision 3C electronic fields. Extrusion molding cannot achieve high-precision, high-density, and high-strength product requirements. Therefore, powder metallurgy injection molding is required. At present, the development of such products containing curved tubes in the market is relatively immature. In order to meet the requirements of product function, appearance, and use and meet customer satisfaction, our company has made R&D investment verification on molds.

[0003] Due to the raw material characteristics of powder metallurgy products, they are not as tough as plastics, especially small products, which are weak in strength and easy to break. The product edges are scratched and broken, etc. Therefore, an injection mold for powder metallurgy products containing curved tube structures is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an injection mold for powder metallurgy products containing curved tube structures, so as to solve the problems mentioned in the above background technology that due to the characteristics of the raw materials of powder metallurgy products, they are not as tough as plastics, especially small products, have weak strength, are easy to break, and the edges of the products are stretched and broken.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection mold for powder metallurgy products containing bent tube structures, comprising a panel, a hot runner plate is installed at the lower end of the panel, and an A plate is installed at the lower end of the hot runner plate, a B plate is installed at the lower end of the A plate, and a ejector panel is installed at the lower end of the B plate, extension rods are installed on the front sides of the hot runner plate and the B plate, and a rotating ring is installed on the extension rod, an upper locking block and a lower locking block are respectively sleeved and installed on the rotating ring, and a locking nut is sleeved and installed on the front side of the rotating ring, a locking buckle fixing plate is installed on the front side of the A plate, and a mounting buckle block is fixedly connected to the rear side of the locking buckle fixing plate, a locking bolt is installed on the locking buckle fixing plate, and a lock is inserted and installed on the locking buckle fixing plate, mounting plates are installed on both sides of the B plate, and pins are installed on the mounting plate, and the mounting plates are installed A rotating shaft is installed, and a movable block is installed on the other side of the rotating shaft, the rear side of the movable block is rotatably connected with a connecting rod, and the rear side of the connecting rod is fixedly connected with a guide block, the guide block is plugged and installed in the guide groove, and the guide groove is opened on the front side of the mounting plate, a sliding groove is opened at the upper end of the front side of the mounting plate, and a sliding ball is inlaid and installed on the inner wall of the sliding groove, the connecting rod is plugged and installed in the sliding groove, and the upper end of the connecting rod is connected to the A plate, one side of the ejector panel is connected to an air inlet, and a positioning slot is opened on the inner wall of one end of the air inlet, a positioning plug is inserted and installed on the inner wall of the positioning slot, and the other end of the positioning plug is fixedly connected to an air inlet pipe, a sliding groove is opened on the outer wall of the intake pipe, and a sliding block is inserted and installed on the inner wall of the sliding groove, a self-locking block is fixedly connected to one side of the sliding block, and a spring is fixedly connected to the upper end of the sliding block, and the upper end of the spring is fixedly connected to the inner wall of the sliding groove.

[0006] Preferably, the A plate is installed by inserting into the lock fixing plate through the installation buckle block, and the lock fixing plate is locked and fixedly connected to the A plate through a locking bolt.

[0007] Preferably, the A plate is independently locked and installed with the hot runner plate and the B plate on the lock buckle through an upper locking block and a lower locking block.

[0008] Preferably, the A plate is connected to the movable block by a connecting rod in an arc-shaped flipping manner in the guide groove.

[0009] Preferably, the mounting plate is fixedly mounted on the B plate by bolts through pins, and the pins are distributed in four groups of symmetrical positions on the mounting plate, and the mounting plate is distributed in symmetrical positions on the B plate.

[0010] Preferably, the air intake duct is installed in a positioning insertion slot in a positioning engagement with the air intake port via a positioning plug block.

[0011] Preferably, the air intake duct is elastically telescopically connected to the self-locking block in the slide groove on the slider via a spring, and the air intake duct is self-lockingly installed with the air inlet via the self-locking block.

[0012] Preferably, the upper locking block and the lower locking block are connected to the hot runner plate and the B plate in a telescopic manner through an extension rod.

[0013] Preferably, the upper locking block and the lower locking block are flip-connected to the extension rod via a rotating ring, and the upper locking block and the lower locking block are locked and fixedly connected to the rotating ring via a locking nut.

[0014] Preferably, the connecting rod is slidably connected to the mounting plate in a sliding groove via a sliding ball.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the hot runner plate, A plate and B plate used for the injection mold of powder metallurgy products containing curved tube structures can be telescopically opened and closed on the lock buckle through the upper locking block and the lower locking block to achieve the order adjustment of mold opening, and when the A plate and the B plate are opened, they can be flipped open and closed through the connecting rod, the rotating shaft, the guide groove, the movable block and the guide block, the mold opening is more stable, and defects such as product edge tearing and fragmentation can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of an injection mold for a powder metallurgy product containing a bent pipe structure according to the present invention;

[0017] Figure 2 It is a schematic diagram of the connection between the A plate and the lock fixing plate of the injection mold for powder metallurgy products with bent pipe structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection between a mounting plate and a connecting rod of an injection mold for a powder metallurgy product containing a bent pipe structure according to the present invention;

[0019] Figure 4 The present invention is an injection mold for powder metallurgy products containing bent pipe structures Figure 1 Enlarged view of point A in the middle;

[0020] Figure 5 The present invention is an injection mold for powder metallurgy products containing bent pipe structures Figure 2 Enlarged view of point B in the middle;

[0021] Figure 6 The present invention is an injection mold for powder metallurgy products containing bent pipe structures Figure 3 Enlarged view of center C.

[0022] In the figure: 1, panel, 2, hot runner plate, 3, A plate, 4, locking plate, 5, mounting plate, 6, air inlet duct, 7, air inlet, 8, B plate, 9, ejector panel, 10, upper locking block, 11, mounting buckle block, 12, locking buckle, 13, lower locking block, 14, locking bolt, 15, connecting rod, 16, rotating shaft, 17, guide groove, 18, movable block, 19, pin, 20, guide block, 21, spring, 22, self-locking block, 23, positioning block, 24, positioning slot, 25, slider, 26, slide groove, 27, locking nut, 28, extension rod, 29, rotating ring, 30, slide groove, 31, slide ball. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6The present invention provides a technical solution: an injection mold for powder metallurgy products containing bent pipe structures, comprising a panel 1, a hot runner plate 2, an A plate 3, a locking plate 4, a mounting plate 5, an air inlet pipe 6, an air inlet 7, a B plate 8, an ejector panel 9, an upper locking block 10, an installation buckle block 11, a locking buckle 12, a lower locking block 13, a locking bolt 14, a connecting rod 15, a rotating shaft 16, a guide groove 17, a movable block 18, a pin 19, a guide block 20, a spring 21, a self-locking block 22, a positioning plug block 23, a positioning slot 24, a slider 25, a slide groove 26, a locking nut 27, an extension rod 28, a rotating ring 29, a slide groove 30 and a slide ball 31, the lower end of the panel 1 is equipped with a hot runner plate 2, and the lower end of the hot runner plate 2 is equipped with an A plate 3, and the A plate 3 is installed by the installation buckle block 11 is inserted and installed with the lock fixing plate 4, and the lock fixing plate 4 is locked and fixedly connected with the A plate 3 through the locking bolt 14, so that the lock fixing plate 4 is convenient for quick disassembly, assembly and replacement. The A plate 3 is independently locked and installed with the hot runner plate 2 and the B plate 8 on the lock 12 through the upper locking block 10 and the lower locking block 13, so that the A plate 3 and the B plate 8 can be locked and adjusted in sequence, which is convenient for adjusting the mold opening sequence. The A plate 3 is connected in an arc shape in the guide groove 17 on the movable block 18 through the connecting rod 15, so that the A plate 3 can be turned in an arc shape for mold opening. The B plate 8 is installed at the lower end of the A plate 3, and the ejector panel 9 is installed at the lower end of the B plate 8. The front sides of the hot runner plate 2 and the B plate 8 are both installed with extension rods 28, and the extension rods 28 are installed with rotating Ring 29, the upper locking block 10 and the lower locking block 13 are respectively fitted on the rotating ring 29, and a locking nut 27 is fitted on the front side of the rotating ring 29. The upper locking block 10 and the lower locking block 13 are telescopically connected to the hot runner plate 2 and the B plate 8 through the extension rod 28, so that the upper locking block 10 and the lower locking block 13 can be telescopically adjusted, which is convenient for opening and closing adjustment. The upper locking block 10 and the lower locking block 13 are flipped connected to the extension rod 28 through the rotating ring 29, and the upper locking block 10 and the lower locking block 13 are locked and fixedly connected to the rotating ring 29 through the locking nut 27, so that the upper locking block 10 and the lower locking block 13 are convenient for flipping and adjustment, and can be replaced and used. A lock fixing plate 4 is installed on the front side of the A plate 3, and the lock fixing plate 4 is fixedly connected to the rear side with an installation Buckle block 11, locking bolts 14 are installed on the lock fixing plate 4, and a lock 12 is inserted and installed on the lock fixing plate 4, mounting plates 5 are installed on both sides of the B plate 8, and pins 19 are installed on the mounting plate 5, the mounting plate 5 is bolted and fixed to the B plate 8 through the pins 19, and the pins 19 are distributed in four groups of symmetrical positions on the mounting plate 5, and the mounting plate 5 is symmetrically distributed on the B plate 8, so that the mounting plate 5 is convenient for stable installation and symmetrical use, a rotating shaft 16 is installed on the mounting plate 5, and a movable block 18 is installed on the other side of the rotating shaft 16, the rear side of the movable block 18 is rotatably connected to the connecting rod 15, and the rear side of the connecting rod 15 is fixedly connected to the guide block 20, and the connecting rod 15 is slidably connected to the mounting plate 5 in the slide groove 30 through the sliding ball 31,In this way, the connecting rod 15 and the mounting plate 5 can slide and retract, and the use is more stable. The guide block 20 is inserted and installed in the guide groove 17, and the guide groove 17 is opened on the front side of the mounting plate 5. A slide groove 30 is opened on the upper end of the front side of the mounting plate 5, and a slide ball 31 is inlaid and installed on the inner wall of the slide groove 30. The connecting rod 15 is inserted and installed in the slide groove 30, and the upper end of the connecting rod 15 is connected to the A plate 3. One side of the ejector panel 9 is connected to the air inlet 7, and a positioning slot 24 is opened on the inner wall of one end of the air inlet 7. A positioning plug 23 is inserted and installed on the inner wall of the positioning slot 24, and the other end of the positioning plug 23 is fixedly connected to the air intake pipe 6. The air intake pipe 6 is located in The positioning slot 24 is installed in a positioning and plugging manner with the air inlet 7, so that the air inlet pipe 6 is conveniently and quickly positioned and plugged in for installation, and the disassembly and assembly are more convenient. The air inlet pipe 6 is elastically and telescopically connected to the self-locking block 22 in the slide groove 26 on the slider 25 through the spring 21, and the air inlet pipe 6 is self-lockingly installed with the air inlet 7 through the self-locking block 22, so that the air inlet pipe 6 is conveniently installed for self-locking. The outer wall of the air inlet pipe 6 is provided with a slide groove 26, and the inner wall of the slide groove 26 is plugged with a slider 25, one side of the slider 25 is fixedly connected with the self-locking block 22, and the upper end of the slider 25 is fixedly connected with the spring 21, and the upper end of the spring 21 is fixedly connected to the inner wall of the slide groove 26.

[0025] Working principle: When using the injection mold for powder metallurgy products with curved pipe structures, first fix the mounting plate 5 of the device with the B plate 8 through the pin 19, and fix the connecting rod 15 with the A plate 3, then position the air inlet pipe 6 with the air inlet 7 through the positioning plug block 23 and the positioning slot 24, and then the self-locking block 22 is self-locked by the spring 21, the slider 25 and the slide groove 26. When the hot runner plate 2 and the A plate 3 need to be opened, the locking block 10 can be stretched outwards through the extension rod 28 to release the lock 1. 2 is locked, and then the mold is opened. When the A plate 3 and the B plate 8 need to be molded, the lower locking block 13 can be stretched outward to release the lock, and then the A plate 3 is stretched upward through the connecting rod 15 through the slide groove 30 and the slide ball 31, so that it is turned over and stretched through the rotating shaft 16, the guide groove 17, the movable block 18 and the guide block 20 to turn over and open the mold. When the lock fixing plate 4 needs to be replaced, it can be locked and disassembled by installing the buckle block 11 and the locking bolt 14, and replaced for use. This is the use process of the injection mold for powder metallurgy products containing curved pipe structures.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold for a powder metallurgy product containing a bent tube structure, comprising a panel (1), a hot runner plate (2) being mounted at the lower end of the panel (1), an A plate (3) being mounted at the lower end of the hot runner plate (2), a B plate (8) being mounted at the lower end of the A plate (3), and an ejector panel (9) being mounted at the lower end of the B plate (8), characterized in that: The hot runner plate (2) and the B plate (8) are both installed with an extension rod (28) on the front side, and a rotating ring (29) is installed on the extension rod (28), and an upper locking block (10) and a lower locking block (13) are respectively installed on the rotating ring (29), and a locking nut (27) is installed on the front side of the rotating ring (29), and a locking buckle fixing plate (4) is installed on the front side of the A plate (3), and a mounting buckle block (11) is fixedly connected to the rear side of the locking buckle fixing plate (4), and the locking buckle fixing plate (4) is installed on the front side of the A plate (3). ) is mounted with a locking bolt (14), and a lock (12) is plugged and mounted on the lock fixing plate (4), mounting plates (5) are mounted on both sides of the B plate (8), and a pin (19) is mounted on the mounting plate (5), a rotating shaft (16) is mounted on the mounting plate (5), and a movable block (18) is mounted on the other side of the rotating shaft (16), the movable block (18) is rotatably connected to a connecting rod (15) at the rear side, and a guide block (20) is fixedly connected to the rear side of the connecting rod (15), and the guide block (20) is inserted and installed with the guide groove (17), and the guide groove (17) is opened on the front side of the mounting plate (5), the upper end of the front side of the mounting plate (5) is provided with a slide groove (30), and the inner wall of the slide groove (30) is inlaid with a slide ball (31), the connecting rod (15) is inserted and installed with the slide groove (30), and the upper end of the connecting rod (15) is connected to the A plate (3), one side of the ejector panel (9) is connected with the air inlet (7), and the inner wall of one end of the air inlet (7) is provided with a positioning slot (24), A positioning block (23) is inserted and installed on the inner wall of the positioning slot (24), and the other end of the positioning block (23) is fixedly connected to an air intake pipe (6). A slide groove (26) is provided on the outer wall of the air intake pipe (6), and a slider (25) is inserted and installed on the inner wall of the slide groove (26). A self-locking block (22) is fixedly connected to one side of the slider (25), and a spring (21) is fixedly connected to the upper end of the slider (25), and the upper end of the spring (21) is fixedly connected to the inner wall of the slide groove (26).

2. The injection mold for powder metallurgy products containing curved tube structures according to claim 1, characterized in that: The A plate (3) is installed by inserting into the lock fixing plate (4) via the installation buckle block (11), and the lock fixing plate (4) is locked and fixedly connected to the A plate (3) via the locking bolt (14).

3. The injection mold for powder metallurgy products containing curved tube structures according to claim 2, characterized in that: The A plate (3) is independently locked and installed with the hot runner plate (2) and the B plate (8) on the lock buckle (12) through an upper locking block (10) and a lower locking block (13).

4. The injection mold for powder metallurgy products containing curved tube structures according to claim 3, characterized in that: The A plate (3) is connected to the movable block (18) by means of a connecting rod (15) and is flipped in an arc shape in the guide groove (17).

5. The injection mold for powder metallurgy products containing curved tube structures according to claim 4, characterized in that: The mounting plate (5) is bolted to the B plate (8) via pins (19), and the pins (19) are distributed in four groups of symmetrical positions on the mounting plate (5), and the mounting plate (5) is distributed in symmetrical positions on the B plate (8).

6. The injection mold for powder metallurgy products containing curved tube structures according to claim 5, characterized in that: The air intake pipe (6) is installed in a positioning insertion slot (24) by means of a positioning plug block (23) and in a positioning engagement with the air intake port (7).

7. The injection mold for powder metallurgy products containing curved tube structures according to claim 6, characterized in that: The air intake duct (6) is elastically and telescopically connected to the self-locking block (22) in the slide groove (26) on the slider (25) via a spring (21), and the air intake duct (6) is self-lockingly mounted to the air intake port (7) via the self-locking block (22).

8. The injection mold for powder metallurgy products containing curved tube structures according to claim 7, characterized in that: The upper locking block (10) and the lower locking block (13) are connected to the hot runner plate (2) and the B plate (8) in a telescopic manner via an extension rod (28).

9. The injection mold for powder metallurgy products containing curved tube structures according to claim 8, characterized in that: The upper locking block (10) and the lower locking block (13) are connected to the extension rod (28) in a flipping manner via a rotating ring (29), and the upper locking block (10) and the lower locking block (13) are connected to the rotating ring (29) in a locking and fixed manner via a locking nut (27).

10. The injection mold for powder metallurgy products containing curved tube structures according to claim 9, characterized in that: The connecting rod (15) is slidably connected to the mounting plate (5) in the sliding groove (30) via a sliding ball (31).

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