A tungsten steel powder metallurgy pressing device

Abstract

The present invention provides a tungsten steel powder metallurgy pressing device, and relates to the technical field of powder metallurgy. The present invention comprises a main body, the inner lower surface of the main body is fixedly connected with a conveyor belt, the front surface of the conveyor belt is fixedly connected with a sliding plate, the inner surface of the main body near the upper end is fixedly connected with a pressing device, the output end of the pressing device is fixedly connected with a sliding block, and a limiting device is provided on the inner surface of the main body near the bottom. By providing a power device to drive the limiting device to flip and unload the material, and receiving it through the sliding plate, and transporting it through the conveyor belt, the unloading method is simplified, and the efficiency of unloading and transportation is improved. By providing a limiting device, the mold device can be replaced, and a variety of different parts can be produced. At the same time, the design of the limiting device makes it easier and more convenient to replace the mold device, and the speed of replacing the mold is improved.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy, in particular to a tungsten steel powder metallurgy pressing device. Background Art

[0002] Powder metallurgy is a technology that manufactures metal parts by pressing metal powder into shape and then sintering it. Its main steps include: powder preparation, powder mixing, forming, sintering and post-processing. Compared with traditional casting, forging and other methods, powder metallurgy has higher material utilization, precise dimensional control and lower energy consumption. This technology is widely used in the fields of automobiles, aviation, electronics, etc., and can manufacture small batches of parts with complex shapes and precise dimensions. Its advantages include high material utilization, energy saving and low cost. It is often used to produce parts such as gears, bearings, brake pads, etc.

[0003] The existing powder metallurgy device is to spread the powder in the mold, then press the powder in the mold into shape through a pressing device, and then sinter it to obtain a product. For example, "the invention patent application with announcement number CN118404060B discloses a pressing and molding device and method for producing powder metallurgy blanks", in which the pressed and molded blank is taken out by cooperating with multiple cylinders to achieve the effect of taking out the material. This method takes a long time to take out the material and has low efficiency. Another example is "the invention patent application with publication number CN117428188A discloses a pressing and molding device based on powder metallurgy", in which the powder is pressed and molded in a limiting cylinder. This method is more troublesome when the lower mold needs to be replaced, cannot adapt to different pressing molds, and has a relatively single function. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a tungsten steel powder metallurgy pressing device, which solves the problem of being troublesome in taking out the pressed blank and replacing different molds.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tungsten steel powder metallurgy pressing device, comprising a main body, a conveyor belt is fixedly connected to the inner lower surface of the main body, a sliding plate is fixedly connected to the front surface of the conveyor belt, a pressing device is fixedly connected to the inner surface of the main body near the upper end, a sliding block is fixedly connected to the output end of the pressing device, a limiting device is provided on the inner surface of the main body near the bottom, a mold device is installed on the inner surface of the limiting device, a power device is provided at the rear end of the limiting device, an upper pressing block is fixedly connected to the output end of the pressing device and below the sliding block, the limiting block is fixedly connected to the inner surface of the main body, and a discharging device is provided on the inner surface of the main body.

[0008] Preferably, the limiting device includes a flip block, a slide groove, a connecting rod, a second slide rod, a second spring, a fixed block, a pressing block, a limiting plug block, a third slide rod and a third spring. The flip block is movably connected to the inner surface of the main body, the slide groove is respectively opened on both side surfaces of the flip block, the mold device is installed on the inner surface of the flip block, the second slide rod is slidably connected to the inner surface of the flip block, the second spring is sleeved on the side surface of the second slide rod, and one end of the second spring is fixedly connected to the inner surface of the flip block.

[0009] Preferably, the other end of the second spring is fixedly connected to the side surface of the fixed block, the fixed block is fixedly connected to the side surface of the second sliding rod, the connecting rod is fixedly connected to the upper surface of the fixed block, the lower pressure block is slidably connected to the inner surface of the flip block, the limiting plug block is fixedly connected to the upper surface of the lower pressure block near the edge, the upper end of the third sliding rod is fixedly connected to the lower surface of the lower pressure block, the lower end of the third sliding rod is slidably connected to the inner surface of the flip block, the third spring is sleeved on the side surface of the third sliding rod, the upper end of the third spring is fixedly connected to the lower surface of the lower pressure block, and the lower end of the third spring is fixedly connected to the inner surface of the flip block.

[0010] Preferably, the power device includes a first sliding rod, a first spring, a ramp block, a downward pressure rod, a limiting circular shell, a fixing rod and a torsion spring, the first sliding rod being slidably connected to the inner surface of the main body, the first spring being sleeved on the side surface of the first sliding rod, one end of the first spring being fixedly connected to the rear end of the ramp block, the other end of the first spring being fixedly connected to the inner surface of the main body, and the ramp block being slidably connected to the inner surface of the main body.

[0011] Preferably, the upper end of the push-down rod is fixedly connected to the lower surface of the sliding block, the lower end of the push-down rod is provided with a roller, the push-down rod is slidably connected to the inclined surface of the inclined surface block through the roller, the limiting circular shell is fixedly connected to the inner surface of the inclined surface block, the limiting circular shell is slidably connected to the inner surface of the slide groove, and the fixed rod is fixedly connected to the side surface of the flip block.

[0012] Preferably, the fixing rod is rotatably connected to the inner surface of the limiting circular shell, the torsion spring is sleeved on the side surface of the fixing rod, one end of the torsion spring is fixedly connected to the inner surface of the limiting circular shell, the other end of the torsion spring is fixedly connected to the side surface of the flip block, and the flip block is movably connected to the side surface of the limiting circular shell through the fixing rod.

[0013] Preferably, the mold device includes a mold body, a socket and a handle, the sockets are respectively opened on the left and right side surfaces of the mold body, the handle is fixedly connected to the upper surface of the mold body, and the mold body is installed on the inner surface of the flip block through the socket.

[0014] Preferably, the discharge device includes a first tooth plate, a gear, a second tooth plate and a feed head, the upper surface of the first tooth plate is fixedly connected to the lower surface of the sliding block, the second tooth plate is slidably connected to the inner surface of the main body, the feed head is fixedly connected to one end of the second tooth plate, the gear is rotatably connected to the inner surface of the main body, and the second tooth plate is meshingly connected to the gear.

[0015] Working principle: Start the pressing device 8 to drive the sliding block 5 to descend, and the sliding block 5 descends to drive the lower pressing rod 604 to descend. The lower pressing rod 604 drives the inclined block 603 to move backward through the roller set at the lower end. When the inclined block 603 moves backward, it drives the flip block 301 to move backward. When the lower end of the lower pressing rod 604 moves to the end of the inclined surface, it continues to move downward. The interior of the main body 1 is provided with a hole groove for the downward movement of the lower pressing rod 604. At this time, the mold device 4 is facing the position of the upper pressing block 9. Then the sliding block 5 continues to move downward, driving the discharge device 7 to move downward, and the discharge The device 7 contacts the gear 702 for meshing, driving the gear 702 to rotate. The rotation of the gear 702 drives the second tooth plate 703 to move backward and exit from the bottom of the upper pressing block 9. At the same time, the feeding head 704 is connected to an external powder conveying device to convey the powder to the material trough on the mold body 401. When the feeding head 704 leaves the bottom of the upper pressing block 9, the powder is just conveyed. Then the sliding block 5 continues to press downward to drive the upper pressing block 9 downward to press the powder in the mold device 4 into shape. After that, the sliding block 5 moves upward to drive the lower pressing rod 604 to move upward, releasing the inclined block 603. The inclined block 603 is pushed forward under the action of the first spring 602. At this time, the torsion spring 607 is always in a state of torque. When pushed to the front, the torsion spring 607 drives the flip block 301 to flip the opening on the mold device 4 downward by 150 degrees. At this time, the blank in the mold device 4 slides onto the sliding plate 2, and then slides from the sliding plate 2 to the conveyor belt 10 to be transported away. When the mold device 4 needs to be replaced, the connecting rod 303 on the flip block 301 is moved to both sides at the same time, and the second sliding rod 304 is removed from the socket 402 to release the mold body. 401 is limited, and at the same time, the lower pressing block 307 pushes out the mold device 4, and the limiting plug block 308 also moves upward to limit the second slide bar 304. Then the handle 403 is pulled to take out the mold body 401. After replacement, the new mold body 401 is pressed on the lower pressing block 307. When pressed downward, the lower pressing block 307 moves downward, and the downward movement of the lower pressing block 307 drives the limiting plug block 308 to move downward, releasing the limit on the second slide bar 304. The second slide bar 304 moves into the socket 402 to limit the socket 402, and the replacement is completed.

[0016] (III) Beneficial effects

[0017] The present invention provides a tungsten steel powder metallurgy pressing device, which has the following beneficial effects:

[0018] 1. By setting a power device to drive the limit device to flip and unload the material, the material is received through a sliding plate and transported through a conveyor belt, which simplifies the unloading method and improves the efficiency of unloading and transportation.

[0019] 2. The mold device can be replaced by setting a limit device, and a variety of different parts can be produced. At the same time, the design of the limit device makes it easier and more convenient to replace the mold device, thereby improving the speed of replacing the mold.

[0020] 3. The feeding device is set up to streamline the input powder and improve the feeding speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a tungsten steel powder metallurgy pressing device proposed by the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of a tungsten steel powder metallurgy pressing device proposed by the present invention Figure 1 ;

[0023] Figure 3 Schematic diagram of the internal structure of a tungsten steel powder metallurgy pressing device proposed by the present invention Figure 2 ;

[0024] Figure 4 A schematic diagram of the power device structure of a tungsten steel powder metallurgy pressing device proposed by the present invention Figure 1 ;

[0025] Figure 5 A schematic diagram of the power device structure of a tungsten steel powder metallurgy pressing device proposed by the present invention Figure 2 ;

[0026] Figure 6 Schematic diagram of the structure of a limiting device of a tungsten steel powder metallurgy pressing device proposed by the present invention Figure 1 ;

[0027] Figure 7 Schematic diagram of the structure of a limiting device of a tungsten steel powder metallurgy pressing device proposed by the present invention Figure 2 ;

[0028] Figure 8 For the present invention Figure 7 A magnified view of part A in FIG.

[0029] Fig. 9 A schematic diagram of the structure of a mold device of a tungsten steel powder metallurgy pressing device proposed by the present invention;

[0030] Fig.10 The present invention is a schematic diagram of the structure of a discharge device of a tungsten steel powder metallurgy pressing device proposed by the present invention.

[0031] Among them, 1. main body; 2. slide plate; 3. limit device; 301. flip block; 302. slide groove; 303. connecting rod; 304. second slide bar; 305. second spring; 306. fixed block; 307. lower pressure block; 308. limit plug block; 309. third slide bar; 310. third spring; 4. mold device; 401. mold body; 402. jack; 403. handle; 5. sliding block; 6. power device; 601. first slide bar; 602. first spring; 603. inclined plane block; 604. lower pressure rod; 605. limit circular shell; 606. fixed rod; 607. torsion spring; 7. discharge device; 701. first tooth plate; 702. gear; 703. second tooth plate; 704. feeding head; 8. pressing equipment; 9. upper pressure block; 10. conveyor belt; 11. limit block. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figure 1-10 As shown, an embodiment of the present invention provides a tungsten steel powder metallurgy pressing device, comprising 1. A tungsten steel powder metallurgy pressing device, comprising a main body 1, a conveyor belt 10 is fixedly connected to the inner lower surface of the main body 1, a slide plate 2 is fixedly connected to the front surface of the conveyor belt 10, a pressing device 8 is fixedly connected to the inner surface of the main body 1 near the upper end, a sliding block 5 is fixedly connected to the output end of the pressing device 8, a limiting device 3 is provided on the inner surface of the main body 1 near the bottom, a mold device 4 is installed on the inner surface of the limiting device 3, a power device 6 is provided at the rear end of the limiting device 3, an upper pressing block 9 is fixedly connected to the output end of the pressing device 8 and located below the sliding block 5, a limiting block 11 is fixedly connected to the inner surface of the main body 1, a discharging device 7 is provided on the inner surface of the main body 1, the pressing device 8 is a common existing device for pressing tungsten steel powder, and a buffer pad can be laid on the inclined surface of the sliding plate 2 to prevent the pressed blank from being damaged when it falls.

[0034] The limiting device 3 includes a flip block 301, a slide groove 302, a connecting rod 303, a second slide bar 304, a second spring 305, a fixed block 306, a pressing block 307, a limiting plug block 308, a third slide bar 309 and a third spring 310. The flip block 301 is movably connected to the inner surface of the main body 1, the slide groove 302 is respectively provided on the two side surfaces of the flip block 301, the mold device 4 is installed on the inner surface of the flip block 301, the second slide bar 304 is slidably connected to the inner surface of the flip block 301, the second spring 305 is sleeved on the side surface of the second slide bar 304, one end of the second spring 305 is fixedly connected to the inner surface of the flip block 301, and the other end of the second spring 305 is fixedly connected to the side surface of the fixed block 306. Block 306 is fixedly connected to the side surface of the second slide bar 304, the connecting rod 303 is fixedly connected to the upper surface of the fixed block 306, the lower pressure block 307 is slidably connected to the inner surface of the flip block 301, the limiting plug block 308 is fixedly connected to the upper surface of the lower pressure block 307 near the edge, the upper end of the third slide bar 309 is fixedly connected to the lower surface of the lower pressure block 307, the lower end of the third slide bar 309 is slidably connected to the inner surface of the flip block 301, the third spring 310 is sleeved on the side surface of the third slide bar 309, the upper end of the third spring 310 is fixedly connected to the lower surface of the lower pressure block 307, the lower end of the third spring 310 is fixedly connected to the inner surface of the flip block 301, and the third spring 310 is a strong spring that can lift the mold device 4.

[0035] The power device 6 includes a first sliding rod 601, a first spring 602, an inclined surface block 603, a pressing rod 604, a limiting circular shell 605, a fixing rod 606 and a torsion spring 607. The first sliding rod 601 is slidably connected to the inner surface of the main body 1. The first spring 602 is sleeved on the side surface of the first sliding rod 601. One end of the first spring 602 is fixedly connected to the rear end of the inclined surface block 603. The other end of the first spring 602 is fixedly connected to the inner surface of the main body 1. The inclined surface block 603 is slidably connected to the inner surface of the main body 1. The upper end of the pressing rod 604 is fixedly connected to the lower surface of the sliding block 5. A roller is provided at the lower end of the pressing rod 604. The pressing rod 604 is slidably connected to the inclined surface of the inclined surface block 603 through the roller. The limiting circular shell 605 is fixedly connected to the inner surface of the inclined surface block 603. The limiting circular shell 605 is slidably connected to the inner surface of the slide groove 302. The fixing rod 606 is fixedly connected to the inner surface of the inclined surface block 603. The torsion spring 607 is sleeved on the side surface of the fixing rod 606, one end of the torsion spring 607 is fixedly connected to the inner surface of the limiting circular shell 605, and the other end of the torsion spring 607 is fixedly connected to the side surface of the flip block 301. The flip block 301 is movably connected to the side surface of the limiting circular shell 605 through the fixing rod 606. The sliding block 5 moves upward to drive the pressing rod 604 to move upward, releasing the limit on the inclined plane block 603. The inclined plane block 603 is pushed forward under the action of the first spring 602. At this time, the torsion spring 607 is always in a state of torsion deformation. When pushed to the front, the torsion spring 607 drives the flip block 301 to flip the opening on the mold device 4 downward by 150 degrees. At this time, the blank in the mold device 4 slides onto the sliding plate 2. The torsion spring 607 is in a state of torsion deformation when it is horizontally movable.

[0036] The sliding block 5 descends and drives the pressing rod 604 to descend. The pressing rod 604 drives the inclined block 603 to move backward through the roller set at the lower end. When the inclined block 603 moves backward, it drives the flip block 301 to move backward. When the lower end of the pressing rod 604 moves to the end of the inclined surface, it continues to move downward. The interior of the main body 1 is provided with a hole groove for the pressing rod 604 to move downward.

[0037] The mold device 4 includes a mold body 401, a socket 402 and a handle 403. The sockets 402 are respectively opened on the left and right side surfaces of the mold body 401, and the handle 403 is fixedly connected to the upper surface of the mold body 401. The mold body 401 is installed on the inner surface of the flip block 301 through the socket 402. The inner wall of the material trough on the mold body 401 is smoothly set, so that the blank after pressing can be poured out smoothly, and the back of the flip block 301 can be manually knocked when pouring the blank to assist in unloading.

[0038] When replacing the mold device 4, the connecting rod 303 on the flip block 301 is moved to both sides at the same time, the second slide bar 304 is moved out of the socket 402 to release the limit on the mold body 401, and the lower pressure block 307 pushes the mold device 4 out, and the limiting plug block 308 also moves upward to limit the second slide bar 304, and then the handle 403 is pulled to take out the mold body 401. After replacement, the new mold body 401 is pressed on the lower pressure block 307, and the lower pressure block 307 moves downward when pressing downward. The lower pressure block 307 moves downward and drives the limiting plug block 308 to move downward, releasing the limit on the second slide bar 304. The second slide bar 304 moves into the socket 402 under the action of the second spring 305 to limit the socket 402, and the replacement is completed.

[0039] The discharge device 7 includes a first tooth plate 701, a gear 702, a second tooth plate 703 and a feeding head 704. The upper surface of the first tooth plate 701 is fixedly connected to the lower surface of the sliding block 5, the second tooth plate 703 is slidably connected to the inner surface of the main body 1, the feeding head 704 is fixedly connected to one end of the second tooth plate 703, the gear 702 is rotatably connected to the inner surface of the main body 1, the second tooth plate 703 is meshed with the gear 702, the sliding block 5 moves downward, driving the discharge device 7 to move downward, and the discharge device 7 contacts the gear 702 for meshing , driving the gear 702 to rotate, the rotation of the gear 702 drives the second tooth plate 703 to move backward and exit from under the upper pressing block 9, and at the same time, the feeding head 704 is externally connected to a powder conveying device to convey the powder to the material trough on the mold body 401, and the powder is just conveyed when the feeding head 704 leaves under the upper pressing block 9. The feeding head 704 is externally connected to an existing unloading device to convey the powder to the mold device 4 through the feeding head 704. The feeding head 704 can evenly lay the powder in the mold device 4, and can also manually trim the powder after laying is completed.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tungsten steel powder metallurgy pressing device, comprising a main body (1), characterized in that: A conveyor belt (10) is fixedly connected to the inner lower surface of the main body (1), a slide plate (2) is fixedly connected to the front surface of the conveyor belt (10), a pressing device (8) is fixedly connected to the inner surface of the main body (1) near the upper end, a sliding block (5) is fixedly connected to the output end of the pressing device (8), a limiting device (3) is provided on the inner surface of the main body (1) near the lower end, a mold device (4) is installed on the inner surface of the limiting device (3), a power device (6) is provided at the rear end of the limiting device (3), and the output end of the pressing device (8) and located below the sliding block (5) is fixedly connected An upper pressure block (9) is provided, the inner surface of the main body (1) is fixedly connected to a limiting block (11), the inner surface of the main body (1) is provided with a discharge device (7), the limiting device (3) comprises a flip block (301), a slide groove (302), a connecting rod (303), a second slide rod (304), a second spring (305), a fixed block (306), a lower pressure block (307), a limiting plug block (308), a third slide rod (309) and a third spring (310), the flip block (301) is movably connected to the inner surface of the main body (1), the slide groove (302) is respectively provided on the two side surfaces of the flip block (301), The mold device (4) is installed on the inner surface of the flip block (301), the second slide bar (304) is slidably connected to the inner surface of the flip block (301), the second spring (305) is sleeved on the side surface of the second slide bar (304), one end of the second spring (305) is fixedly connected to the inner surface of the flip block (301), the other end of the second spring (305) is fixedly connected to the side surface of the fixed block (306), the fixed block (306) is fixedly connected to the side surface of the second slide bar (304), the connecting rod (303) is fixedly connected to the upper surface of the fixed block (306), and the lower pressing block (306) is fixedly connected to the inner surface of the flip block (301). 07) is slidably connected to the inner surface of the flip block (301), the limit plug block (308) is fixedly connected to the upper surface of the lower pressing block (307) near the edge, the upper end of the third slide bar (309) is fixedly connected to the lower surface of the lower pressing block (307), the lower end of the third slide bar (309) is slidably connected to the inner surface of the flip block (301), the third spring (310) is sleeved on the side surface of the third slide bar (309), the upper end of the third spring (310) is fixedly connected to the lower surface of the lower pressing block (307), and the lower end of the third spring (310) is fixedly connected to the inner surface of the flip block (301); The power device (6) comprises a first sliding bar (601), a first spring (602), an inclined surface block (603), a downward pressing rod (604), a limiting circular shell (605), a fixing rod (606) and a torsion spring (607), wherein the first sliding bar (601) is slidably connected to the inner surface of the main body (1), the first spring (602) is sleeved on the side surface of the first sliding bar (601), one end of the first spring (602) is fixedly connected to the rear end of the inclined surface block (603), the other end of the first spring (602) is fixedly connected to the inner surface of the main body (1), the inclined surface block (603) is slidably connected to the inner surface of the main body (1), the upper end of the downward pressing rod (604) is fixedly connected to the lower surface of the sliding block (5), the lower end of the downward pressing rod (604) is provided with a roller, and the downward pressing rod (604) is provided with a roller. The rod (604) is slidably connected to the inclined surface of the inclined surface block (603) through a roller, the limiting circular shell (605) is fixedly connected to the inner surface of the inclined surface block (603), the limiting circular shell (605) is slidably connected to the inner surface of the slide groove (302), the fixed rod (606) is fixedly connected to the side surface of the flip block (301), the fixed rod (606) is rotatably connected to the inner surface of the limiting circular shell (605), the torsion spring (607) is sleeved on the side surface of the fixed rod (606), one end of the torsion spring (607) is fixedly connected to the inner surface of the limiting circular shell (605), and the other end of the torsion spring (607) is fixedly connected to the side surface of the flip block (301), and the flip block (301) is movably connected to the side surface of the limiting circular shell (605) through the fixed rod (606).

2. The tungsten steel powder metallurgy pressing device according to claim 1, characterized in that: The mold device (4) comprises a mold body (401), a socket (402) and a handle (403); the socket (402) is respectively provided on the left and right side surfaces of the mold body (401); the handle (403) is fixedly connected to the upper surface of the mold body (401); and the mold body (401) is mounted on the inner surface of the flip block (301) via the socket (402).

3. The tungsten steel powder metallurgy pressing device according to claim 1, characterized in that: The material discharge device (7) comprises a first tooth plate (701), a gear (702), a second tooth plate (703) and a material feeding head (704); the upper surface of the first tooth plate (701) is fixedly connected to the lower surface of the sliding block (5); the second tooth plate (703) is slidably connected to the inner surface of the main body (1); the material feeding head (704) is fixedly connected to one end of the second tooth plate (703); the gear (702) is rotatably connected to the inner surface of the main body (1); and the second tooth plate (703) is meshingly connected to the gear (702).

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