Sintering die for stainless steel special-shaped part

Abstract

The utility model discloses a stainless steel special-shaped part sintering die, which belongs to the technical field of special-shaped part production, and comprises a bottom plate and a special-shaped part, a fixed plate is arranged above the bottom plate, an outer die is arranged between the fixed plate and the bottom plate, an inner die is fixedly connected to the upper surface of the bottom plate, a detachable plate is inserted into the inner wall of the bottom plate, and the detachable plate is fixedly connected with the special-shaped part. The outer surface of the dismounting plate makes contact with the inner mold, and the special-shaped piece is arranged between the outer mold and the inner mold. According to the stainless steel special-shaped part sintering mold, the demolding mechanism is controlled to impact the supporting piece, so that the supporting piece generates vibration, then the vibration is transmitted to the inner mold and the dismounting plate, and the inner side of the special-shaped part is impacted, so that the inner side of the special-shaped part is separated from the inner mold and the dismounting plate, adhesion is prevented, and the service life of the special-shaped part is prolonged. And the effect of demolding the inner side of the special-shaped part is achieved, so that the problem that demolding is inconvenient due to the fact that there is no too large space for knocking demolding on the inner side is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of special-shaped part production, particularly to a stainless steel special-shaped part sintering mould. BACKGROUND

[0002] Sintering mould is a tool used in the industrial production process of powder metallurgy, hard alloy, ceramic material and the like, which realizes the densification sintering of materials by applying pressure at high temperature, wherein when sintering stainless steel material, stainless steel powder needs to be sintered at high temperature to produce parts with specific shape and size, and special moulds need to be used according to different shapes, which can be used to produce stainless steel parts with complex shape, such as various special-shaped parts, and have been widely used at present.

[0003] The existing sintering mould is generally composed of an upper mould and a lower mould, in use, the upper mould and the lower mould are separated first, stainless steel powder is put into the inside of the lower mould, the stainless steel powder is fixed by pressing through the upper mould, then heating and sintering are carried out, after sintering is completed and cooling, the upper mould and the lower mould are separated, so that the sintered parts are taken out.

[0004] However, for some tubular special-shaped parts with some recessed grooves on the inside, the contact area between the inside of the tubular part and the mould is large, and there are many edges and corners, and since it is on the inside, there is not much space for knocking off the mould, which is not convenient for demoulding, in order to solve the technical problem, the utility model provides a stainless steel special-shaped part sintering mould. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a stainless steel special-shaped part sintering mould, which can effectively solve the problems mentioned in the background art.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A stainless steel special-shaped part sintering mould, comprising a bottom plate and a special-shaped part, a fixed plate is arranged above the bottom plate, an outer mould is arranged between the fixed plate and the bottom plate, an inner mould is fixedly connected to the upper surface of the bottom plate, a dismounting plate is inserted into the inner wall of the bottom plate, the outer surface of the dismounting plate is in contact with the inner mould, the special-shaped part is arranged between the outer mould and the inner mould, an extrusion plate is fixedly connected to the lower surface of the fixed plate, a support member is also fixedly connected to the lower surface of the fixed plate, the upper end of the inner mould and the dismounting plate is located between the support member and the extrusion plate, an activity mechanism is arranged in the inside of the support member, and a demoulding mechanism is arranged at the lower part of the activity mechanism.

[0008] Preferably, the upper surface of the bottom plate is fixedly connected to a limiting ring, and the inner wall of the limiting ring is in sliding connection with the outer mould.

[0009] Preferably, a plurality of reinforcing rods are arranged between the fixed plate and the bottom plate, and two ends of the reinforcing rods are detachably connected with the bottom plate and the fixed plate respectively.

[0010] Preferably, the movable mechanism comprises a pull ring, a connecting rod is fixedly connected to the lower surface of the pull ring, the outer surface of the connecting rod is in sliding connection with the fixed plate, and a movable box is rotatably arranged at the bottom of the connecting rod.

[0011] Preferably, the demolding mechanism comprises a rotating column, the upper surface of the rotating column is fixedly connected with the connecting rod, and the outer surface of the rotating column is in rotational connection with the movable box.

[0012] Preferably, the outer surface of the rotating column is fixedly connected with a connecting wire, one end of the connecting wire away from the rotating column is fixedly connected with a round rod, and the outer surface of the round rod is in sliding connection with the movable box.

[0013] Preferably, the end of the round rod is fixedly connected with a striking head, a spring is sleeved on the outer surface of the round rod, one end of the spring is fixedly connected with the striking head, and the other end of the spring is fixedly connected with the movable box.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] In the utility model, the demolding mechanism is arranged to strike the supporting piece, so that the supporting piece vibrates, and the vibration is transmitted to the inner mold and the dismounting plate. The inner side of the special-shaped piece is struck to separate the inner side of the special-shaped piece from the inner mold and the dismounting plate, thereby preventing adhesion. The movable mechanism is arranged to move the striking position upward, so that all positions of the inner side of the special-shaped piece are struck, thereby achieving the effect of demolding the inner side of the special-shaped piece. The inner side has no large space for striking and demolding, and the demolding is facilitated.

[0016] In the utility model, the plurality of reinforcing rods are arranged between the bottom plate and the fixed plate, the bottom plate and the fixed plate are fixed, and the remaining components are fixed, thereby facilitating installation. The reinforcing rods are detached from the bottom plate and the fixed plate, the outer surface of the outer mold is struck from the outside, thereby demolding the outer part of the special-shaped piece. The supporting piece is pulled out from the inside of the inner mold, the plurality of dismounting plates are pulled out, and finally the bottom plate is separated from the outer mold, thereby taking out the sintered special-shaped piece, thereby facilitating dismounting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model of a sintering mold for stainless steel special-shaped parts;

[0018] Figure 2The utility model discloses a stainless steel special-shaped part sintering die middle outer die's sectional view,

[0019] Figure 3 The utility model discloses a stainless steel special-shaped part sintering die middle inner die's explosion schematic view,

[0020] Figure 4 The utility model discloses a stainless steel special-shaped part sintering die middle support's sectional view,

[0021] Figure 5 The utility model discloses a stainless steel special-shaped part sintering die middle movable box's sectional view.

[0022] In the drawing: 1, bottom plate, 2, fixed plate, 3, outer die, 4, inner die, 5, dismounting plate, 6, special-shaped part, 7, extrusion plate, 8, movable mechanism, 801, pull ring, 802, connecting rod, 803, movable box, 9, demolding mechanism, 901, rotary column, 902, connecting line, 903, round rod, 904, impact head, 905, spring, 10, support, 11, limit ring, 12, reinforcing rod. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] As Figures 1-5 The utility model discloses a stainless steel special-shaped part sintering die, including bottom plate 1 and special-shaped part 6, the top of bottom plate 1 is provided with fixed plate 2, is provided with outer die 3 between fixed plate 2 and bottom plate 1, the upper surface of bottom plate 1 is fixedly connected with inner die 4, and the inner wall of bottom plate 1 is inserted with dismounting plate 5, and the outer surface of dismounting plate 5 is in contact with inner die 4, and special-shaped part 6 is set up between outer die 3 and inner die 4, the lower surface of fixed plate 2 is fixedly connected with extrusion plate 7, and the lower surface of fixed plate 2 is also fixedly connected with support 10, and the upper end of inner die 4 and dismounting plate 5 is located between support 10 and extrusion plate 7, and the inside of support 10 is provided with movable mechanism 8, and the lower part of movable mechanism 8 is provided with demolding mechanism 9, and the shape of outer die 3 is cylindrical, and outer die 3 is clamped and fixed through fixed plate 2 and bottom plate 1, and the number of inner die 4 and dismounting plate 5 is multiple, and the shape of the combination of multiple inner die 4 and dismounting plate 5 is adapted to the shape of the inside of special-shaped part 6, and special-shaped part 6 is clamped between outer die 3 and inner die 4 to facilitate forming, and when using, extrusion plate 7 can extrude special-shaped part 6 firmly in the upper part to facilitate the pressing of special-shaped part 6.

[0025] The movable mechanism 8 comprises a pull ring 801, the lower surface of the pull ring 801 is fixedly connected with a connecting rod 802, the outer surface of the connecting rod 802 is slidably connected with the fixed plate 2, the bottom of the connecting rod 802 is rotatably provided with a movable box 803, the movable box 803 is hexagonal in cross section, the demolding mechanism 9 comprises a rotating column 901, the upper surface of the rotating column 901 is fixedly connected with the connecting rod 802, the outer surface of the rotating column 901 is rotatably connected with the movable box 803, the connecting rod 802 can directly drive the rotating column 901 to rotate in the support 10, when the connecting rod 802 moves upward or downward, the movable box 803 can be driven to move upward or downward through the rotating column 901, the outer surface of the rotating column 901 is fixedly connected with a connecting wire 902, one end of the connecting wire 902 away from the rotating column 901 is fixedly connected with a round rod 903, the outer surface of the round rod 903 is slidably connected with the movable box 803, the connecting wire 902 and the round rod 903 are provided in plurality, each connecting wire 902 corresponds to each round rod 903, when the rotating column 901 rotates, the plurality of connecting wires 902 can be wound on the rotating column 901, so as to drive the plurality of round rods 903 to move close to the rotating column 901, the end of the round rod 903 is fixedly connected with a striking head 904, the outer surface of the round rod 903 is sleeved with a spring 905, one end of the spring 905 is fixedly connected with the striking head 904, the other end of the spring 905 is fixedly connected with the movable box 803, the number of the striking head 904 is same as that of the round rod 903, when the round rod 903 moves close to the rotating column 901, the striking head 904 is driven to move away from the support 10, and the spring 905 is compressed at the same time, when the external force disappears, the striking head 904 is reset under the action of the spring 905, so as to strike the support 10.

[0026] The upper surface of the bottom plate 1 is fixedly connected with a limiting ring 11, the inner wall of the limiting ring 11 is slidably connected with the outer mold 3, the outer mold 3 is limited through the limiting ring 11, so as to be convenient for installation and fixation.

[0027] A plurality of reinforcing rods 12 are arranged between the fixed plate 2 and the bottom plate 1, the two ends of the reinforcing rod 12 are respectively detachably connected with the bottom plate 1 and the fixed plate 2, the two ends of the reinforcing rod 12 can be fixed with the fixed plate 2 and the bottom plate 1 through nuts, so as to increase the firmness, so that the fixed plate 2 and the bottom plate 1 tightly extrude the outer mold, when disassembling, the plurality of reinforcing rods 12 can be disassembled through the nuts at the ends of the reinforcing rods 12, so as to separate the fixed plate 2 from the bottom plate 1.

[0028] Need explaining, this device in actual use, first insert the outer mold 3 to the inside of the limiting ring 11, then insert all the disassembly plate 5 to the inside of the bottom plate 1, the powder before sintering is poured into the outer mold 3 and the inner mold 4 between, the fixed plate 2 is driven to insert the support 10 to the inside of the inner mold 4, and the extrusion plate 7 is entered into the outer mold 3 and the inner mold 4 between, extruding the special-shaped part 6, so as to compact it, install the plurality of reinforcing rods 12 between the bottom plate 1 and the fixed plate 2, fix the bottom plate 1 and the fixed plate 2, so as to fix the remaining components, reach the effect that it is convenient to install.

[0029] Then sintering, after sintering and cooling are completed, the pull ring 801 is twisted, the pull ring 801 drives the connecting rod 802 to rotate, the connecting rod 802 drives the rotating column 901 to rotate, a plurality of connecting lines 902 are wound on the rotating column 901, so as to drive a plurality of round rods 903 to move close to the rotating column 901, drive the impact head 904 to move away from the support 10, and compress the spring 905, then release the pull ring 801, the impact head 904 is reset under the action of the spring 905, the impact head 904 impacts the support 10, the support 10 vibrates, and then transmits to the inner mold 4 and the disassembly plate 5, and impacts the inside of the special-shaped part 6, so as to separate the inside of the special-shaped part 6 from the inner mold 4 and the disassembly plate 5, prevent adhesion, pull the pull ring 801 upwards, so that the knocking position moves upwards, so that all positions of the inside of the special-shaped part 6 are knocked, and the effect that the inside of the special-shaped part 6 is demolded is reached.

[0030] Then the reinforcing rod 12 is disassembled from the bottom plate 1 and the fixed plate 2, the outer surface of the outer mold 3 is knocked from the outside, so that the outside of the special-shaped part 6 is demolded, the fixed plate 2 is pulled upwards, so that the fixed plate 2 drives the support 10 to be pulled out from the inside of the inner mold 4, then a plurality of disassembly plates 5 are pulled out, finally the bottom plate 1 is separated from the outer mold 3, so that the sintered special-shaped part 6 is taken out, and the effect that it is convenient to disassemble is reached.

[0031] The basic principle and main features of the present application are shown and described above, and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sintering die for stainless steel profiled parts, comprising a base plate (1) and a profiled part (6), characterised in that: The upper surface of the bottom plate (1) is fixedly connected with a limiting ring (11), and the inner wall of the limiting ring (11) is in sliding connection with the outer mold (3).

2. The sintering die for stainless steel profiled part according to claim 1, characterized in that: A plurality of reinforcing rods (12) are arranged between the fixed plate (2) and the bottom plate (1), and the two ends of the reinforcing rod (12) are detachably connected with the bottom plate (1) and the fixed plate (2) respectively.

3. The sintering die for stainless steel profiled part according to claim 2, characterized in that: The activity mechanism (8) comprises a pull ring (801), the lower surface of the pull ring (801) is fixedly connected with a connecting rod (802), the outer surface of the connecting rod (802) is in sliding connection with the fixed plate (2), and the bottom of the connecting rod (802) is rotatably provided with a movable box (803).

4. The sintering die for stainless steel profiled part according to claim 3, characterized in that: The demolding mechanism (9) comprises a rotating column (901), the upper surface of the rotating column (901) is fixedly connected with the connecting rod (802), and the outer surface of the rotating column (901) is rotatably connected with the movable box (803).

5. The sintering die for stainless steel profiled part according to claim 4, characterized in that: The outer surface of the rotating column (901) is fixedly connected with a connecting line (902), one end of the connecting line (902) away from the rotating column (901) is fixedly connected with a round rod (903), and the outer surface of the round rod (903) is in sliding connection with the movable box (803).

6. The sintering die for stainless steel profiled part according to claim 5, characterized in that: The end of the round rod (903) is fixedly connected with a striking head (904), the outer surface of the round rod (903) is sleeved with a spring (905), one end of the spring (905) is fixedly connected with the striking head (904), and the other end of the spring (905) is fixedly connected with the movable box (803).

7. The sintering die for stainless steel profiled part according to claim 6, characterized in that: The end of the round rod (903) is fixedly connected with a striking head (904), the outer surface of the round rod (903) is sleeved with a spring (905), one end of the spring (905) is fixedly connected with the striking head (904), and the other end of the spring (905) is fixedly connected with the movable box (803).

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