Auxiliary degreasing equipment for MIM (metal injection molding) process

Abstract

The utility model relates to the technical field of cleaning methods using liquid or steam, and discloses an auxiliary degreasing device of an MIM process, which comprises a device shell, a first space is arranged in the device shell, the left side of the device shell is fixedly connected with a heat energy steam production machine, and the heat energy steam production machine is communicated with the inside of the first space. A first space is formed in the top wall of the equipment shell, a second space is formed in the top wall of the first space, an opening and closing door is arranged on the front side of the equipment shell, the opening and closing door is arranged at the position of the second space, the opening and closing door is rotationally connected with the equipment shell through a first rotating shaft, a handle is fixedly connected to the front side of the opening and closing door, and a transmission mechanism is arranged on the equipment shell. When a workpiece is put into the equipment or taken out of the equipment, a large amount of hot steam can be prevented from being dissipated, so that the equipment does not cause the dissipation of a large amount of hot steam in the working process, the situation that the power needs to be frequently increased to produce the hot steam is avoided, and the cost of thermal degreasing is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning methods using liquid or steam, in particular to auxiliary degreasing equipment for a MIM process. Background Art

[0002] The MIM process, or metal injection molding process, is a method of mixing metal powder with an organic binder to form an injectable material. It is a process that combines injection molding and powder metallurgy technology, and has the characteristics of high precision, high complexity, and high stability. The MIM process is suitable for a variety of fields, including machinery, automobiles, electronics, medical equipment, and military industry. The basic steps of the MIM process include: raw material mixing, injection molding, degreasing, sintering hardening, and post-processing. Degreasing is to separate the blank product from the organic binder, usually by thermal degreasing or chemical degreasing.

[0003] Thermal degreasing is an earlier developed and most widely used degreasing process. Its principle is to remove the organic binder in the blank by melting, volatilizing and cracking it by heating. Usually, thermal degreasing uses hot steam to heat the workpiece to promote the oxidation and decomposition of the oil film on the surface of the workpiece. In actual use, people will send the workpiece that needs to be degreased into the equipment and take out the workpiece that has been degreased. These operations will open the equipment opening, and then the hot steam in the equipment will escape from the opening to the external environment, thereby reducing the internal hot steam temperature. Therefore, it is necessary to increase the power again to produce hot steam, which causes a waste of resources and increases the cost required for thermal degreasing. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides an auxiliary degreasing equipment for the MIM process, which has the function of preventing a large amount of hot steam from escaping when the workpiece is placed into the equipment or taken out of the equipment, so that the equipment will not cause a large amount of hot steam to escape during operation, avoiding the need to frequently increase power to produce hot steam, thereby reducing the cost of thermal degreasing.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary degreasing device for MIM process, comprising a device housing, a first space is opened inside the device housing, a thermal energy steam generator is fixedly connected to the left side of the device housing, and the thermal energy steam generator is connected to the inside of the first space;

[0008] Wherein, a second space is opened on the top wall of the first space;

[0009] The left-right width of the first space is greater than the left-right width of the second space;

[0010] Wherein, a switch door is arranged on the front side of the device housing, the switch door is arranged at the position of the second space, the switch door is rotatably connected to the device housing through a first rotating shaft, and a handle is fixedly connected to the front side of the switch door;

[0011] A transmission mechanism is provided on the device housing, and the transmission mechanism prevents a large amount of hot steam from escaping when taking out and putting in workpieces into the device housing.

[0012] Preferably, the transmission mechanism comprises a heat-resistant baffle, which is arranged on the left wall of the first space;

[0013] The heat-resistant baffle plate and the first space are rotationally connected via a second rotating shaft, and a connecting tension spring is fixedly connected to the upper side of the heat-resistant baffle plate.

[0014] Preferably, the upper end of the connecting tension spring is fixedly connected to the top wall of the first space, and a heat-resistant baffle is also provided at the right wall of the first space;

[0015] The connection structures of the left and right heat-resistant baffles are identical and are arranged in a mirror image, and the opposite surfaces of the two heat-resistant baffles are in contact with each other.

[0016] Preferably, a hydraulic cylinder is fixedly connected to the upper side of the device housing, a hydraulic telescopic rod is fixedly connected to the output end of the hydraulic cylinder, and the lower end of the hydraulic telescopic rod slides through the interior of the device housing.

[0017] Preferably, the lower end of the hydraulic telescopic rod slides through the interior of the second space, the lower end of the hydraulic telescopic rod is fixedly connected to a fixing block, and a first placement groove is provided on the front side of the fixing block.

[0018] Preferably, the rear wall of the first placement groove extends out of the rear side of the fixing block, and a second placement groove is provided on the bottom wall of the first placement groove;

[0019] The fixing block will not completely move to the lower side of the heat-resistant baffle.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides an auxiliary degreasing device for MIM process, which has the following beneficial effects:

[0022] (1) The auxiliary degreasing equipment of the MIM process, pull the handle to open the switch door, and then place the workpiece to be degreased in the second placement slot, and then close the switch door, and start the hydraulic cylinder at the same time, the hydraulic cylinder drives the hydraulic telescopic rod to start moving downward, the hydraulic telescopic rod drives the fixed block to move downward, and then the lower side of the fixed block will contact the upper side of the two heat-resistant baffles, and then the two heat-resistant baffles will start to rotate under the pressure of the fixed block, and then the two heat-resistant baffles will open, at this time the connecting tension spring begins to become stretched, and then the thermal energy steam generator is started, and the thermal energy steam generator starts to produce hot steam into the first space, and then the workpiece will be degreased, and when it is needed When taking out the workpiece, the hydraulic telescopic rod is moved upward, and the hydraulic telescopic rod drives the fixed block to move upward. After the fixed block moves to the upper side of the heat-resistant baffle, the connecting tension spring begins to reset from the stretched state, pulling the two heat-resistant baffles to rotate. After the reset, the opposite surfaces of the two heat-resistant baffles will contact, thereby isolating the first space and the second space, and then opening the switch door to take out the workpiece. This method can prevent a large amount of hot steam from escaping when the workpiece is placed in the equipment or taken out from the equipment, so that a large amount of hot steam will not escape during the operation of the equipment, and the need to frequently increase power to produce hot steam is avoided, thereby reducing the cost of thermal degreasing.

[0023] (2) The auxiliary degreasing equipment of the MIM process does not completely move to the lower side of the heat-resistant baffle when the fixed block is moved downward, so that there is no jamming between the heat-resistant baffle and the fixed block, thereby ensuring the stability of the auxiliary degreasing equipment during the degreasing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of an auxiliary degreasing device for a MIM process of the utility model;

[0025] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the device housing of the utility model;

[0026] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0027] Figure 4 This is a schematic diagram of the connection structure of the fixed block of the utility model.

[0028] In the figure: 1. Equipment casing; 2. First space; 3. Second space; 4. Switch door; 5. First rotating shaft; 6. Handle; 7. Thermal energy steam generator; 8. Heat-resistant baffle; 9. Second rotating shaft; 10. Connecting tension spring; 11. Hydraulic cylinder; 12. Hydraulic telescopic rod; 13. Fixed block; 14. First placement slot; 15. Second placement slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figures 1 to 4The utility model provides a new technical solution: an auxiliary degreasing device for MIM process, including a device shell 1, a first space 2 is opened inside the device shell 1, a thermal energy steam generator 7 is fixedly connected to the left side of the device shell 1, and the thermal energy steam generator 7 is connected to the inside of the first space 2. A second space 3 is opened on the top wall of the first space 2, and the left and right widths of the first space 2 are greater than the left and right widths of the second space 3. A switch door 4 is arranged on the front side of the device shell 1, and the switch door 4 is arranged at the position of the second space 3. The switch door 4 is rotatably connected to the device shell 1 through a first rotating shaft 5, and a handle 6 is fixedly connected to the front side of the switch door 4. A transmission mechanism is arranged on the device shell 1, and the transmission mechanism takes out and puts the workpiece into the inside of the device shell 1. In order to prevent the hot steam from escaping in large quantities, the transmission mechanism includes a heat-resistant baffle 8, which is arranged at the left wall of the first space 2, and the heat-resistant baffle 8 and the first space 2 are rotatably connected through the second rotating shaft 9. The upper side of the heat-resistant baffle 8 is fixedly connected with a connecting tension spring 10, and the upper end of the connecting tension spring 10 is fixedly connected to the top wall of the first space 2. The right wall of the first space 2 is also provided with a heat-resistant baffle 8. The connection structures of the left and right heat-resistant baffles 8 are the same and are arranged in a mirror image. The opposite surfaces of the two heat-resistant baffles 8 are in contact with each other. A hydraulic cylinder 11 is fixedly connected to the upper side of the equipment housing 1, and a hydraulic telescopic rod 12 is fixedly connected to the output end of the hydraulic cylinder 11. The lower end of the hydraulic telescopic rod 12 slides into the interior of the equipment housing 1, and the lower end of the hydraulic telescopic rod 12 The fixing block 13 is fixedly connected to the lower end of the hydraulic telescopic rod 12, and a first placement groove 14 is provided on the front side of the fixing block 13. The rear wall of the first placement groove 14 extends out of the rear side of the fixing block 13. A second placement groove 15 is provided on the bottom wall of the first placement groove 14. The fixing block 13 will not be completely moved to the lower side of the heat-resistant baffle 8. When starting to work, first pull the handle 6 to open the switch door 4, and then place the workpiece to be degreased in the second placement groove 15. The second placement groove 15 can prevent the workpiece from falling from the inside of the first placement groove 14, and then close the switch door 4, and start the hydraulic cylinder 11 at the same time. The hydraulic cylinder 11 drives the hydraulic telescopic rod 12 to start moving downward, and the hydraulic telescopic rod 12 drives the fixing block 13. The two heat-resistant baffles 8 start to rotate under the pressure of the fixed block 13, and the two heat-resistant baffles 8 open. At this time, the connecting tension spring 10 starts to become stretched, and the thermal energy steam generator 7 is started. The thermal energy steam generator 7 starts to produce hot steam into the first space 2, and the workpiece is degreased. When the workpiece needs to be taken out, the hydraulic cylinder 11 is started in the opposite direction, and the hydraulic telescopic rod 12 moves upward. The hydraulic telescopic rod 12 drives the fixed block 13 to move upward, and stops after the fixed block 13 is completely moved to the upper side of the heat-resistant baffle 8. At this time, the connecting tension spring 10 starts to reset from the stretched state, pulling the two heat-resistant baffles 8 to rotate.After resetting, the opposite surfaces of the two heat-resistant baffles 8 will contact, thereby isolating the first space 2 and the second space 3, so that the hot steam inside the first space 2 will not move into the second space 3, and then the switch door 4 is opened to take out the workpiece, and the hot steam inside the first space 2 will not escape through the switch door 4. In this way, when the workpiece is placed in or taken out of the equipment, a large amount of hot steam can be prevented from escaping, so that the equipment will not cause a large amount of hot steam to escape during operation, avoiding the need to frequently increase power to produce hot steam, thereby reducing the cost of thermal degreasing.

[0031] Working principle: when starting work, first pull the handle 6 to open the switch door 4, and then place the workpiece to be degreased in the second placement groove 15. The second placement groove 15 can prevent the workpiece from falling from the inside of the first placement groove 14, and then close the switch door 4, and start the hydraulic cylinder 11 at the same time. The hydraulic cylinder 11 drives the hydraulic telescopic rod 12 to start moving downward, and the hydraulic telescopic rod 12 drives the fixed block 13 to move downward, and then the lower side of the fixed block 13 will contact the upper side of the two heat-resistant baffles 8, and then the two heat-resistant baffles 8 will start to rotate under the pressure of the fixed block 13, and then the two heat-resistant baffles 8 will open, and at this time the connecting tension spring 10 begins to become a stretched state, and then the thermal energy steam generator 7 is started, and the thermal energy steam generator 7 starts to move to the first Hot steam is produced inside the space 2, and the workpiece will be degreased. When the workpiece needs to be taken out, the hydraulic cylinder 11 is started in the opposite direction, so that the hydraulic telescopic rod 12 moves upward, and the hydraulic telescopic rod 12 drives the fixed block 13 to move upward, and stops after the fixed block 13 is completely moved to the upper side of the heat-resistant baffle 8. At this time, the connecting tension spring 10 begins to reset from the stretched state, pulling the two heat-resistant baffles 8 to rotate. After the reset, the opposite surfaces of the two heat-resistant baffles 8 will contact, thereby isolating the first space 2 and the second space 3, and the hot steam inside the first space 2 will not move to the inside of the second space 3, and the switch door 4 is opened to take out the workpiece, and the hot steam inside the first space 2 will not overflow through the switch door 4.

[0032] 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. An auxiliary degreasing device for MIM process, comprising a device housing (1), characterized in that: A first space (2) is provided inside the device housing (1); a thermal energy steam generator (7) is fixedly connected to the left side of the device housing (1); the thermal energy steam generator (7) is in communication with the interior of the first space (2); Wherein, a second space (3) is opened on the top wall of the first space (2); The left-right width of the first space (2) is greater than the left-right width of the second space (3); A switch door (4) is provided on the front side of the device housing (1); the switch door (4) is provided at the position of the second space (3); the switch door (4) is rotatably connected to the device housing (1) via a first rotating shaft (5); and a handle (6) is fixedly connected to the front side of the switch door (4); A transmission mechanism is provided on the device housing (1), and the transmission mechanism prevents a large amount of hot steam from escaping when taking out and putting in workpieces into the device housing (1).

2. The auxiliary degreasing equipment of the MIM process according to claim 1, characterized in that: The transmission mechanism comprises a heat-resistant baffle (8), and the heat-resistant baffle (8) is arranged on the left wall of the first space (2); The heat-resistant baffle (8) and the first space (2) are rotatably connected via a second rotating shaft (9), and a connecting tension spring (10) is fixedly connected to the upper side of the heat-resistant baffle (8).

3. The auxiliary degreasing equipment of the MIM process according to claim 2 is characterized in that: The upper end of the connecting tension spring (10) is fixedly connected to the top wall of the first space (2), and a heat-resistant baffle (8) is also provided on the right wall of the first space (2); The connection structures of the two left and right heat-resistant baffles (8) are identical and are arranged in a mirror image, and the opposite surfaces of the two heat-resistant baffles (8) are in contact with each other.

4. The auxiliary degreasing equipment of the MIM process according to claim 1, characterized in that: The upper side of the device housing (1) is fixedly connected to a hydraulic cylinder (11), the output end of the hydraulic cylinder (11) is fixedly connected to a hydraulic telescopic rod (12), and the lower end of the hydraulic telescopic rod (12) slides through the interior of the device housing (1).

5. The auxiliary degreasing equipment of the MIM process according to claim 4 is characterized in that: The lower end of the hydraulic telescopic rod (12) slides through the interior of the second space (3); the lower end of the hydraulic telescopic rod (12) is fixedly connected to a fixing block (13); and a first placement groove (14) is provided on the front side of the fixing block (13).

6. The auxiliary degreasing equipment of the MIM process according to claim 5, characterized in that: The rear wall of the first placement groove (14) extends out of the rear side of the fixing block (13), and a second placement groove (15) is provided on the bottom wall of the first placement groove (14); The fixing block (13) will not completely move to the lower side of the heat-resistant baffle (8).

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