Removable steel sleeve structure for powder metallurgy

Abstract

The utility model relates to a detachable steel sleeve structure for powder metallurgy, which is installed outside the rubber sleeve of the powder metallurgy mold, including a steel sleeve, a side plate and a sealing device. The steel sleeve is a U-shaped structure, which is sleeved outside the rubber sleeve, and has two cover plates that fit with the top end face and the bottom end face in the length direction of the rubber sleeve, and a bottom plate arranged at one end of the two cover plates. The two sides between the two cover plates are open structures, and a limit bolt capable of adjusting the opening width is arranged between the other ends of the two cover plates away from the bottom plate. The side plates are a group, which respectively cover the openings on both sides of the cover plates. The side plates are detachably connected to the cover plates, and the sealing device is arranged at the rubber sleeve opening and can block the rubber sleeve opening. The contact surface between the side plate of the utility model and the side and front sides of the steel sleeve has a margin of 5-7mm, which allows the rubber sleeve to have space to expand and is also convenient for the installation and removal of the side plates; in order to reduce the occupied space on the side, a closed rubber sleeve and a sealing device are used in conjunction.

Description

Technical Field

[0001] The utility model relates to the technical field of target material processing, in particular to a detachable steel sleeve structure for powder metallurgy. Background Art

[0002] According to different uses, the target material needs to have various specifications, so different molds are used when cutting, including steel sleeves and rubber sleeves. Due to the space limitations of the isostatic press, the mold is usually designed as a cuboid, so there will be some slender steel sleeves.

[0003] On the one hand, when feeding, the contact surface between the steel sleeve and the rubber sleeve is easily squeezed by the powder, expanding outward, causing deformation, shortening the life of the steel sleeve, and not conducive to pressing out a regular green billet. On the other hand, in order to make full use of the space of the upper isostatic press, the side of the steel sleeve can be removed so that the side of the rubber sleeve directly contacts the cylinder wall of the isostatic press to maximize the use of the width direction. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a detachable steel sleeve structure for powder metallurgy, which can reduce the space occupied by the mold and is easy to disassemble and assemble.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A detachable steel sleeve structure for powder metallurgy is installed outside the rubber sleeve of a powder metallurgy mold, comprising a steel sleeve, side plates and a sealing device. The steel sleeve is a U-shaped structure, sleeved outside the rubber sleeve, and has two cover plates that fit the top end surface and bottom end surface in the length direction of the rubber sleeve, and a bottom plate arranged at one end of the two cover plates. The two sides between the two cover plates are open structures, and a limiting bolt capable of adjusting the opening width is arranged between the other ends of the two cover plates away from the bottom plate. The side plates are a group, which respectively cover the openings on both sides of the cover plates, and the side plates are detachably connected to the cover plates. The sealing device is arranged at the rubber sleeve opening and can seal the rubber sleeve opening.

[0007] In order to ensure the strength of the steel sleeve and avoid excessive deformation of the steel sleeve, a plurality of reinforcing ribs are fixed to the outer wall of the cover plate.

[0008] In order to facilitate the disassembly and assembly of the side panel, the side panel has a sealing plate capable of covering the opening and a folding plate folded along the length direction of the sealing plate toward the reinforcing rib, and the folding plate is detachably connected to the reinforcing rib by a plurality of screws.

[0009] In order to reduce the weight of the cylinder sleeve, a plurality of through holes are evenly opened on the cover plate and the bottom plate.

[0010] In order to seal the opening of the rubber sleeve, in a preferred embodiment of the utility model, the sealing device includes a rubber plug capable of sealing the opening of the rubber sleeve and a clamp capable of fixing the rubber plug to the opening of the rubber sleeve.

[0011] The utility model is beneficial in that:

[0012] (1) The contact surface between the side plate of the utility model and the side and front surfaces of the steel sleeve has a margin of 5-7 mm, which allows space for the rubber sleeve to expand and facilitates the installation and removal of the side plate;

[0013] (2) To reduce the space occupied by the side, use a rubber sleeve and a sealing device;

[0014] (3) The side panels are removable to fully utilize the space in the width direction;

[0015] (4) Strengthening ribs to reduce the degree of deformation of the steel sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the detachable steel sleeve structure for powder metallurgy of the utility model;

[0017] Figure 2 This is an exploded view of the detachable steel sleeve structure for powder metallurgy of the utility model. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more explicit definition of the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1 , Figure 2 The shown detachable steel sleeve structure for powder metallurgy is installed outside the rubber sleeve 1 of the powder metallurgy mold and can wrap the rubber sleeve 1 all around, including a steel sleeve 2, a side panel 3 and a sealing device 4, wherein the steel sleeve 2 is a U-shaped structure, which is sleeved outside the rubber sleeve 1, and the side panels 3 are a group, symmetrically arranged on both sides of the steel sleeve 2 and detachably connected to the steel sleeve 2, and the sealing device 4 is arranged at the rubber sleeve opening and can seal the rubber sleeve opening.

[0020] Specifically, the steel sleeve 2 has two cover plates 201 that fit with the top and bottom surfaces in the length direction of the rubber sleeve 1, and a bottom plate 202 arranged at one end (the bottom end in the figure) of the two cover plates 201. A plurality of through holes 203 are evenly opened on the cover plates 201 and the bottom plate 202. The cover plates 201 and the bottom plate 202 form a U-shaped structure. The two sides between the two cover plates 201 are open structures. An adjustable A set of limiting bolts 5 for adjusting the opening width, a plurality of reinforcing ribs 6 are fixed to the outer wall of the cover plate 201, the side panel 3 has a sealing plate 301 capable of covering the opening and a folding plate 302 folded along the length direction of the sealing plate 301 toward the reinforcing rib 6, the folding plate 302 is detachably connected to the reinforcing rib 6 by a plurality of screws 7, and a 5-7mm margin is left on the contact surface between the side panel 3 and the side and front of the steel sleeve 2, that is, the side panel 3 can be moved slightly outward to allow space for expansion on both sides of the rubber sleeve 1.

[0021] Specifically, the sealing device includes a rubber plug 401 that can seal the opening of the rubber sleeve and a clamp that can fix the rubber plug 401 to the opening of the rubber sleeve, and the clamp includes an upper clamp 401 and a lower clamp 402, wherein the lower clamp is a lap-jointed structure, and the upper clamp 401 and the lower clamp 402 fix the rubber plug 401 to the flange of the opening of the rubber sleeve by a number of screws to achieve detachability.

[0022] Before unloading, put the rubber sleeve 1 into the steel sleeve 2, connect the two side plates 3 with the reinforcing ribs 6 by screws, tighten the limit bolts 5, and send it for unloading; use a vibrator to vibrate while unloading, and after completion, cooperate with the overlap sealing device 4. At this time, the inside of the rubber sleeve 1 is completely filled with powder, which is equivalent to a vacuum environment. Remove the two side plates 3, and the side of the rubber sleeve 1 will not be deformed due to the flow of powder; put it into the isostatic press to complete the pressing work.

[0023] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A detachable steel sleeve structure for powder metallurgy, installed outside the rubber sleeve of a powder metallurgy mold, characterized in that: It includes a steel sleeve, a side plate and a sealing device. The steel sleeve is a U-shaped structure, which is sleeved outside the rubber sleeve and has two cover plates that are in contact with the top end surface and the bottom end surface in the length direction of the rubber sleeve, and a bottom plate arranged at one end of the two cover plates. The two sides between the two cover plates are open structures. A limiting bolt capable of adjusting the opening width is arranged between the other ends of the two cover plates away from the bottom plate. The side plates are a group, which respectively cover the openings on both sides of the cover plates. The side plates are detachably connected to the cover plates. The sealing device is arranged at the opening of the rubber sleeve and can seal the opening of the rubber sleeve.

2. The detachable steel sleeve structure for powder metallurgy according to claim 1, characterized in that: A plurality of reinforcing ribs are fixed on the outer wall of the cover plate.

3. The detachable steel sleeve structure for powder metallurgy according to claim 2, characterized in that: The side plate comprises a sealing plate capable of covering the opening and a folding plate folded along the length direction of the sealing plate toward the reinforcing rib, and the folding plate is detachably connected to the reinforcing rib via a plurality of screws.

4. The detachable steel sleeve structure for powder metallurgy according to claim 1, characterized in that: A plurality of through holes are evenly formed on the cover plate and the bottom plate.

5. The detachable steel sleeve structure for powder metallurgy according to claim 1, characterized in that: The sealing device comprises a rubber plug capable of sealing the opening of the rubber sleeve and a clamp capable of fixing the rubber plug and the opening of the rubber sleeve.

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