Device for pressing superfine magnesium particles into compact cakes

Abstract

The device comprises a mold arranged on a rack, an opening is formed in the upper end of the mold, notches are formed in the two opposite sides of the lower portion of the mold correspondingly, a first push plate and a second push plate are arranged in the notches correspondingly, and first cooling water channels are formed in the first push plate and the second push plate correspondingly; inlets of the two first cooling water channels are communicated through a first U-shaped pipe, and outlets of the two first cooling water channels are communicated through a second U-shaped pipe; second cooling water channels are respectively formed in the side walls of the adjacent notches in the mold, the two second cooling water channels are communicated with each other, one second cooling water channel is communicated with a water inlet, the other second cooling water channel is communicated with a water outlet, an air cylinder is arranged on the rack, and a piston rod of the air cylinder is connected with the second push plate; the problems that the chemical property of magnesium is very active, magnesium alloy scrap pressing equipment in the prior art is difficult to cool in the pressing process, the spontaneous combustion phenomenon easily occurs, and certain potential safety hazards exist are solved.

Description

Technical Field

[0001] The present invention relates to the field of magnesium alloy processing, and specifically, to a device for pressing and compacting ultrafine magnesium particles into cake blocks. Background Art

[0002] Die-cast magnesium alloy has good filling ability, a relatively fast solidification speed after filling, and a relatively small thermal shock to the die-casting mold. It can be used for die-casting thin-walled parts without defects such as hot cracking and under-casting, reduce the thermal fatigue phenomenon of the die-casting mold, extend the service life of the die-casting mold, shorten the stay time of the die-cast part in the mold, and the die-casting production rate is about 75% faster than that of aluminum alloy. At the same time, as an environmentally friendly material, magnesium alloy also has good recycling performance. The method of pressing magnesium chips into blocks is a metal processing method, which can press magnesium chips into blocks for subsequent storage, transportation, recycling and reuse. For example, the Chinese patent with the patent number CN213501027U provides a device for pressing and packing magnesium alloy chips, including: a frame, the frame includes a base, columns, and an upper beam, the upper beam is equipped with a main hydraulic cylinder, the piston telescopic end of the main hydraulic cylinder is located below the upper beam and is equipped with the pressing head of the pressing mold, the columns connect the upper beam and the base, the outer mold of the pressing mold is installed above the base, a chip feeding port is opened on one side of the upper end of the outer mold, a screw feeding device is installed at the chip feeding port, a resistance heating device is installed outside the outer mold, a discharge port is opened at the bottom of the outer mold, a blocking block is installed at the discharge port, and the blocking block is connected with a discharge hydraulic cylinder. However, the chemical property of magnesium is very active, the melting point of magnesium is 649 °C, and the ignition point is more than 500 °C. During the pressing process, the temperature needs to be well controlled to prevent combustion during the pressing process. However, the existing magnesium alloy chip pressing equipment is difficult to cool down during the pressing process and is prone to spontaneous combustion, posing a certain safety hazard. Summary of the Invention

[0003] The purpose of the present invention is to provide a device for pressing and compacting ultrafine magnesium particles into cake blocks, which solves the problems that the chemical property of magnesium is very active, the existing magnesium alloy chip pressing equipment is difficult to cool down during the pressing process, is prone to spontaneous combustion, and poses a certain safety hazard.

[0004] To achieve the above object, the present invention provides an ultra-fine magnesium granule pressing and compacting cake device. The ultra-fine magnesium granule pressing and compacting cake device includes a mold disposed on a bench. An opening is formed at the upper end of the mold. Groove openings are respectively formed on opposite sides below the mold. A first push plate and a second push plate are respectively disposed in the groove openings. First cooling water channels are disposed inside both the first push plate and the second push plate. The inlets of the two first cooling water channels are connected through a first U-shaped pipe, and the outlets of the two first cooling water channels are connected through a second U-shaped pipe. The first U-shaped pipe and the second U-shaped pipe are respectively located outside the mold. A water inlet hose is connected to the first U-shaped pipe, and a water outlet hose is connected to the second U-shaped pipe. Second cooling water channels are respectively formed in the side walls of the mold adjacent to the groove openings. The two second cooling water channels are connected. A water inlet is connected to one of the second cooling water channels, and a water outlet is connected to the other second cooling water channel. A cylinder is disposed on the bench, and the piston rod of the cylinder is connected to the second push plate.

[0005] Preferably, a frame body is disposed on the bench, and a hydraulic cylinder is disposed on the frame body. A pressing head is connected to the piston rod of the hydraulic cylinder, and the pressing head can extend vertically into the mold.

[0006] Preferably, a sliding seat is disposed on the outer side wall of the mold, and the first U-shaped pipe and the second U-shaped pipe are slidably disposed in the sliding seat.

[0007] Preferably, a discharge guide plate is inclinedly disposed on the bench near the first push plate.

[0008] Preferably, a feed guide plate is inclinedly disposed at the opening of the mold.

[0009] Preferably, an opening is formed in the side wall of the mold, and a sand box is disposed on the outer side wall of the mold. The sand box is communicated with the opening, and a baffle is movably disposed in the opening.

[0010] Preferably, a sliding cavity is formed in the upper wall of the opening, a spring is disposed in the sliding cavity, the spring is connected to the baffle, and the lower end of the baffle is connected to the upper wall of the opening through a pull rope.

[0011] Preferably, a bent portion is formed at the lower end of the baffle, a plurality of first hooks are fixed on the bent portion, a plurality of second hooks are fixed on the upper wall of the opening, and the first hooks and the second hooks are connected through the pull rope.

[0012] Preferably, an opening is formed at the upper end of the sand box, and a cover plate is clamped on the opening.

[0013] The present invention provides a device for pressing and compacting ultrafine magnesium particles into cake blocks. The device for pressing and compacting ultrafine magnesium particles into cake blocks includes a mold disposed on a bench. An opening is formed at the upper end of the mold. Notch openings are respectively formed at opposite sides below the mold. A first push plate and a second push plate are respectively disposed in the notch openings. First cooling water channels are disposed inside both the first push plate and the second push plate. The inlets of the two first cooling water channels are connected through a first U-shaped pipe, and the outlets of the two first cooling water channels are connected through a second U-shaped pipe. The first U-shaped pipe and the second U-shaped pipe are respectively located outside the mold. A water inlet hose is connected to the first U-shaped pipe, and a water outlet hose is connected to the second U-shaped pipe. Second cooling water channels are respectively formed inside the side walls of the mold adjacent to the notch openings. The two second cooling water channels are connected. A water inlet is connected to one of the second cooling water channels, and a water outlet is connected to the other second cooling water channel. A cylinder is disposed on the bench, and a piston rod of the cylinder is connected to the second push plate. During operation, magnesium chips are poured into the mold through the opening of the mold, and the magnesium chips are pressed into cake blocks in the mold by a hydraulic press. During the pressing process, cooling water enters from the water inlet hose into the first U-shaped pipe and then enters the first push plate and the second push plate, and then is discharged from the second U-shaped pipe and the water outlet hose. On the other side of the mold, water is supplied through the water inlet and discharged from the water outlet on the other side, so that the side walls of the entire mold and the first push plate and the second push plate can perform cooling water circulation and temperature reduction during the pressing process, avoiding combustion due to excessive temperature during the pressing process. After the pressing is completed, the cylinder is started to push out the magnesium blocks formed inside. The device for pressing and compacting ultrafine magnesium particles into cake blocks provided by the present invention is not only convenient for pressing magnesium chips, but also convenient for discharging materials, and can effectively cool the mold during the pressing process, improving the safety of pressing.

[0014] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the following specific implementation, but do not constitute a limitation to the present invention. In the drawings:

[0016] Figure 1 is the first structural diagram of the device for pressing and compacting ultrafine magnesium particles into cake blocks provided by the present invention;

[0017] Figure 2 is the second structural diagram of the device for pressing and compacting ultrafine magnesium particles into cake blocks provided by the present invention;

[0018] Figure 3 is the third structural diagram of the device for pressing and compacting ultrafine magnesium particles into cake blocks provided by the present invention;

[0019] Figure 4It is the fourth structural diagram of the device for pressing and compacting ultrafine magnesium particles provided by the present invention.

[0020] Explanation of reference numerals

[0021] 1 - Bench; 2 - Frame; 3 - Hydraulic cylinder; 4 - Pressing head; 5 - Mold; 6 - Feeding guide plate; 7 - First push plate; 8 - Second push plate; 9 - First U-shaped pipe; 10 - Second U-shaped pipe; 11 - Cylinder; 12 - Sliding seat; 13 - Water inlet; 14 - Water outlet; 15 - Discharge guide plate; 16 - Sand box; 17 - Opening; 18 - Baffle; 19 - Bending part; 20 - First hook; 21 - Pulling rope. Specific embodiments

[0022] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0023] As Figures 1-4 shown: The present invention provides a device for pressing and compacting ultrafine magnesium particles. The device for pressing and compacting ultrafine magnesium particles includes a mold 5 arranged on a bench 1. An opening is formed at the upper end of the mold 5. Groove openings are respectively formed on the opposite sides below the mold 5. A first push plate 7 and a second push plate 8 are respectively arranged in the groove openings. First cooling water channels are arranged inside both the first push plate 7 and the second push plate 8. The inlets of the two first cooling water channels are connected through a first U-shaped pipe 9, and the outlets of the two first cooling water channels are connected through a second U-shaped pipe 10. The first U-shaped pipe 9 and the second U-shaped pipe 10 are respectively located outside the mold 5. A water inlet hose is connected to the first U-shaped pipe 9, and a water outlet hose is connected to the second U-shaped pipe 10. Second cooling water channels are respectively formed in the side walls of the mold 5 adjacent to the groove openings. The two second cooling water channels are connected. A water inlet 13 is connected to one of the second cooling water channels, and a water outlet 14 is connected to the other second cooling water channel. A cylinder 11 is arranged on the bench 1, and the piston rod of the cylinder 11 is connected to the second push plate 8. During operation, magnesium chips are poured into the mold through the opening of the mold, and the magnesium chips are pressed into cake blocks in the mold by a hydraulic press. During the pressing process, cooling water enters from the water inlet hose into the first U-shaped pipe and then enters the first push plate and the second push plate, and then is discharged from the second U-shaped pipe and the water outlet hose. On the other side of the mold, water is supplied through the water inlet and discharged from the water outlet on the other side, so that the side walls of the entire mold and the first push plate and the second push plate can carry out cooling water circulation and temperature reduction during the pressing process, avoiding combustion due to excessive temperature during the pressing process. After the pressing is completed, the cylinder is started to push out the magnesium blocks formed inside. The device for pressing and compacting ultrafine magnesium particles provided by the present invention is not only convenient for pressing magnesium chips, but also convenient for discharging materials, and can effectively cool the mold during the pressing process, improving the safety of pressing.

[0024] In a preferred embodiment of the present invention, in order to be able to press the magnesium chips in the mold into blocks, a frame body 2 is provided on the bench 1, a hydraulic cylinder 3 is provided on the frame body 2, a pressure head 4 is connected to the piston rod of the hydraulic cylinder 3, and the pressure head 4 can extend vertically into the mold 5.

[0025] In a preferred embodiment of the present invention, in order to limit the displacement of the first U-shaped tube and the second U-shaped tube, a sliding seat 12 is provided on the outer side wall of the mold 5, and the first U-shaped tube 9 and the second U-shaped tube 10 are slidably arranged in the sliding seat 12.

[0026] In a preferred embodiment of the present invention, in order to facilitate the collection of the magnesium blocks after they are pushed out of the mold, a discharge guide plate 15 is inclinedly arranged in the bench 1 near the first push plate 7, and the pushed-out magnesium blocks can enter the collection box below along the discharge guide plate 15.

[0027] In a preferred embodiment of the present invention, in order to facilitate the addition of magnesium chips into the mold, a feed guide plate 6 is inclinedly arranged at the opening of the mold 5.

[0028] In a preferred embodiment of the present invention, an opening 17 is formed in the side wall of the mold 5, a sand box 16 is provided on the outer side wall of the mold 5, the sand box 16 is communicated with the opening 17, and a baffle 18 is movably arranged in the opening 17. When the magnesium chips in the mold catch fire during the pressing process, the baffle in the opening can be opened to pour the sand in the sand box into the mold for timely fire control and extinguishing.

[0029] In a preferred embodiment of the present invention, a sliding cavity is formed in the upper wall of the opening 17, a spring is arranged in the sliding cavity, the spring is connected to the baffle 18, and the lower end of the baffle 18 is connected to the upper wall of the opening 17 through a pull rope 21. When the magnesium chips in the mold catch fire during the pressing process, the pull rope can be burned off. After the baffle loses the limit of the pull rope, it can be displaced upward under the action of the spring, thereby automatically opening the opening.

[0030] In a preferred embodiment of the present invention, in order to facilitate the fixing of the pull rope, a bent portion 19 is formed at the lower end of the baffle 18, a plurality of first hooks 20 are fixed on the bent portion 19, a plurality of second hooks are fixed on the upper wall of the opening 17, and the first hooks 20 and the second hooks are connected through the pull rope 21.

[0031] In a preferred embodiment of the present invention, in order to facilitate the pouring and replenishment of sand into the sand box, an opening is formed at the upper end of the sand box 16, and a cover plate is clamped on the opening.

[0032] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0033] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0034] Furthermore, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. An ultra-fine magnesium particle pressing and compacting cake device, characterized in that, The ultra-fine magnesium particle pressing and compacting cake device includes a mold (5) arranged on a bench (1). An opening is formed at the upper end of the mold (5). Notch openings are respectively formed on the opposite sides below the mold (5). A first push plate (7) and a second push plate (8) are respectively arranged in the notch openings. First cooling water channels are arranged inside both the first push plate (7) and the second push plate (8). The inlets of the two first cooling water channels are connected through a first U-shaped pipe (9), and the outlets of the two first cooling water channels are connected through a second U-shaped pipe (10). The first U-shaped pipe (9) and the second U-shaped pipe (10) are respectively located outside the mold (5). A water inlet hose is connected to the first U-shaped pipe (9), and a water outlet hose is connected to the second U-shaped pipe (10). Second cooling water channels are respectively formed in the side walls of the mold (5) adjacent to the notch openings. The two second cooling water channels are connected. A water inlet (13) is connected to one of the second cooling water channels, and a water outlet (14) is connected to the other second cooling water channel. A cylinder (11) is arranged on the bench (1), and the piston rod of the cylinder (11) is connected to the second push plate (8).

2. The device for pressing and compacting ultrafine magnesium particles into compact cakes according to claim 1, wherein A frame body (2) is arranged on the bench (1), and a hydraulic cylinder (3) is arranged on the frame body (2). A pressing head (4) is connected to the piston rod of the hydraulic cylinder (3), and the pressing head (4) can extend vertically into the mold (5).

3. The ultra-fine magnesium particle pressing and compacting cake device according to claim 2, characterized in that, A sliding seat (12) is arranged on the outer side wall of the mold (5), and the first U-shaped pipe (9) and the second U-shaped pipe (10) are slidably arranged in the sliding seat (12).

4. The ultra-fine magnesium particle pressing and densifying cake device according to claim 3, characterized in that, A discharge guide plate (15) is inclinedly arranged on the bench (1) near the first push plate (7).

5. The device for pressing and compacting the ultrafine magnesium particles into compact cakes according to claim 4, wherein A feed guide plate (6) is inclinedly arranged at the opening of the mold (5).

6. The device for pressing and compacting ultrafine magnesium particles into compact cakes according to claim 5, wherein An opening (17) is formed on the side wall of the mold (5). A sand box (16) is arranged on the outer side wall of the mold (5), and the sand box (16) is communicated with the opening (17). A baffle (18) is movably arranged in the opening (17).

7. The device for pressing and compacting the ultrafine magnesium particles into compact cakes according to claim 6, characterized in that, A sliding cavity is formed on the upper wall of the opening (17), and a spring is arranged in the sliding cavity. The spring is connected to the baffle (18), and the lower end of the baffle (18) is connected to the upper wall of the opening (17) through a pull rope (21).

8. The device for pressing and compacting ultrafine magnesium particles into compact cakes according to claim 7, characterized in that, A bent portion (19) is formed at the lower end of the baffle (18), and a plurality of first hooks (20) are fixed on the bent portion (19). A plurality of second hooks are fixed on the upper wall of the opening (17), and the first hooks (20) and the second hooks are connected through the pull rope (21).

9. The device for pressing and compacting ultrafine magnesium particles into cake blocks according to claim 8, wherein An opening is formed at the upper end of the sand box (16), and a cover plate is clamped on the opening.

Images