Catalytic degreasing device for powder injection molding blank

Abstract

The utility model discloses a powder injection molding blank catalytic degreasing device, which belongs to the technical field of catalytic degreasing furnaces and comprises a catalytic degreasing furnace body and a furnace door. According to the powder injection molding blank catalytic degreasing device, a furnace door is closed and drives a second fixing barrel to sleeve a first fixing barrel, the temperature in a catalytic degreasing furnace body is gradually increased, and at the moment, easily-expandable gas in a sealing barrel starts to be heated and expanded, so that a piston circular plate is driven to slide towards the inner side of the catalytic degreasing furnace body; meanwhile, the circular sliding rod abuts against a sliding groove of a spiral sliding groove rod to drive the spiral sliding groove rod to rotate, so that a rotating rod and a driving disc rotate, an arc-shaped anti-skid ring abuts against the inner wall of a circular clamping groove of a second fixing barrel and enters the circular clamping groove, and therefore the furnace door is limited and cannot be opened; therefore, workers can be prevented from being scalded by opening the furnace door when the internal temperature of the catalytic debinding furnace body is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of catalytic degreasing furnaces, in particular to a catalytic degreasing device for powder injection molding blanks. Background Art

[0002] Catalytic degreasing furnace is a kind of equipment used to remove organic matter. It uses the effect of catalyst to decompose organic matter into harmless substances at a lower temperature. Under the conditions of oxalic acid catalysis and heating, the polyformaldehyde in the green body is quickly cracked to generate formaldehyde gas, which is removed, and the water vapor and carbon dioxide gas generated after combustion are discharged.

[0003] After searching, the Chinese patent authorization number CN 205940140 U discloses a new type of catalytic degreasing furnace, including a furnace body, a combustion chamber arranged on the upper part of the furnace body, and a control cabinet; a chimney for exhausting smoke is connected to the upper end of the combustion chamber; a degreasing box is arranged inside the furnace body; a regulating valve for controlling the amount of liquefied petroleum gas and compressed air flowing into the combustion chamber is arranged on the side of the combustion chamber; a charging box is arranged inside the degreasing box; and a high-flow SUS304 stainless steel circulation fan is arranged at the rear end of the charging box; a liquid crystal display screen, control buttons and a pressure display gauge are arranged on the control cabinet. The above patent has the following shortcomings: because the internal temperature of the catalytic degreasing furnace is very high when in use, the furnace door is in a closed state, and then the furnace door can be opened after the internal cooling, but there is still residual temperature in the degreasing furnace. At this time, if the staff directly open the furnace door, they are easily scalded, and it is impossible to prevent the staff from being scalded, which poses a great safety hazard. Utility Model Content

[0004] The utility model aims to solve the problem that the catalytic degreasing furnace in the prior art is easy to scald the staff when opening the furnace door, and proposes a catalytic degreasing device for powder injection molding blanks.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A catalytic degreasing device for powder injection molding blanks comprises a catalytic degreasing furnace body and a furnace door, wherein a cavity is provided inside the catalytic degreasing furnace body, and a mounting plate is fixedly connected to the inner wall of the cavity bottom of the catalytic degreasing furnace body, and further comprises: a first fixed cylinder, fixedly connected to the mounting plate, and three sliding rods are slidably connected to the surface of the first fixed cylinder; an arc-shaped anti-slip ring, fixedly connected to the sliding rod; a round rod, fixedly connected to the inner side of the sliding rod; a driving disk, rotatably connected in the first fixed cylinder, and the round rod is slidably connected in the driving disk; a rotating rod, fixedly connected to the inner side of the driving disk, and a spiral sliding groove rod is fixedly connected to the inner surface of the rotating rod; a second fixed cylinder, fixedly connected to the inner surface of the furnace door, and a circular groove is provided on the inner wall of the second fixed cylinder.

[0007] Preferably, the sliding rod passes through the first fixed tube and is slidably connected to the first fixed tube. A spring is sleeved on the sliding rod close to the inside of the first fixed tube. One end of the spring is fixedly connected to the inner wall of the first fixed tube, and the other end of the spring is fixedly connected to the round rod.

[0008] Preferably, an arc-shaped sliding hole is opened on the surface of the driving disk, and the round rod passes through the arc-shaped sliding hole of the driving disk and is slidably connected with the arc-shaped sliding hole of the driving disk.

[0009] Preferably, the spiral slide rod passes through the mounting plate and is rotatably connected to the mounting plate, a circular groove is provided on the inner wall of the first fixed cylinder, and the driving disk is rotatably connected in the circular groove of the first fixed cylinder.

[0010] Preferably, the first fixing tube is slidably connected to the inside of the second fixing tube, and the arc-shaped anti-slip ring is slidably connected to the circular groove of the second fixing tube.

[0011] Preferably, a sealing barrel is fixedly connected to the surface of the mounting plate, an internal piston of the sealing barrel is connected to a piston disc, and an expandable gas is fixedly filled between the piston disc and the sealing barrel.

[0012] Preferably, a push rod is fixedly connected to the inner surface of the piston circular plate, and the push rod passes through the sealing barrel and the mounting plate and is slidably connected to the sealing barrel and the mounting plate. A smooth rod is fixedly connected to the inner surface of the push rod, and the smooth rod is slidably connected to the slide groove of the spiral slide groove rod.

[0013] Compared with the prior art, the utility model provides a catalytic degreasing device for powder injection molding blanks, which has the following beneficial effects:

[0014] 1. The catalytic degreasing device for powder injection molded blanks, by closing the furnace door, the furnace door drives the second fixed cylinder to be sleeved on the outside of the first fixed cylinder, and the temperature in the catalytic degreasing furnace body gradually increases. At this time, the easily expandable gas in the sealing barrel begins to expand due to the heat, thereby driving the piston round plate to slide to the inner side of the catalytic degreasing furnace body, thereby driving the smooth rod to move, and at the same time, the smooth rod and the spiral slide groove stem are in contact with the slide groove to drive the spiral slide groove rod to rotate, thereby rotating the rotating rod and the driving disk, and making the arc-shaped anti-slip ring contact with and enter the inner wall of the circular groove of the second fixed cylinder, thereby limiting the furnace door and preventing it from being opened, thereby preventing the staff from being scalded by opening the furnace door when the internal temperature of the catalytic degreasing furnace body has not yet decreased.

[0015] 2. The catalytic degreasing device for powder injection molded blanks increases the temperature in the catalytic degreasing furnace body 1, and the easily expandable gas will expand when subjected to high temperature, causing the piston disc 14 to slide toward the inner side of the catalytic degreasing furnace body 1. On the contrary, when the temperature decreases, the piston disc 14 will automatically reset under the action of the gas contraction, thereby facilitating automatic control of the locking of the furnace door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a catalytic degreasing device for powder injection molding blanks proposed by the utility model;

[0017] Figure 2 It is a side structural schematic diagram of a catalytic degreasing device for powder injection molding blanks proposed by the utility model;

[0018] Figure 3 A catalytic degreasing device for powder injection molding blanks proposed by the utility model Figure 2 The structural diagram of A in the figure;

[0019] Figure 4 This is a schematic diagram of the front structure of a catalytic degreasing device for powder injection molding blanks proposed by the utility model;

[0020] Figure 5 A catalytic degreasing device for powder injection molding blanks proposed by the utility model Figure 4 Schematic diagram of the structure of B;

[0021] Figure 6 It is a structural schematic diagram of the inner side of the mounting plate and the cross section of the sealing barrel in a catalytic degreasing device for powder injection molding blanks proposed by the utility model;

[0022] Figure 7 The utility model discloses a schematic diagram of the structure of a spiral slide rod and the interior of a first fixed cylinder in a catalytic degreasing device for a powder injection molding blank.

[0023] In the figure: 1. Catalytic degreasing furnace body; 2. Furnace door; 3. Mounting plate; 4. First fixed cylinder; 5. Sliding rod; 6. Arc-shaped anti-slip ring; 7. Round rod; 8. Driving plate; 9. Rotating rod; 10. Spiral slide rod; 11. Second fixed cylinder; 12. Spring; 13. Sealing barrel; 14. Piston round plate; 15. Push rod; 16. Sliding rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example 1: Reference Figure 1-Figure 7 , a catalytic degreasing device for powder injection molding blanks, including a catalytic degreasing furnace body 1 and a furnace door 2, a cavity is opened inside the catalytic degreasing furnace body 1, and a mounting plate 3 is fixedly connected to the inner wall of the cavity bottom of the catalytic degreasing furnace body 1, and also includes: a first fixed cylinder 4, fixedly connected to the mounting plate 3, and three sliding rods 5 are slidably connected to the surface of the first fixed cylinder 4; an arc-shaped anti-slip ring 6, fixedly connected to the sliding rod 5; a round rod 7, fixedly connected to the inner side of the sliding rod 5; a driving disk 8, rotatably connected in the first fixed cylinder 4, and the round rod 7 is slidably connected in the driving disk 8; a rotating rod 9, fixedly connected to the inner side of the driving disk 8, and a spiral sliding groove rod 10 is fixedly connected to the inner surface of the rotating rod 9; a second fixed cylinder 11, fixedly connected to the inner surface of the furnace door 2, and a circular card groove is opened on the inner wall of the second fixed cylinder 11.

[0027] In the utility model, the spiral slide rod 10 can drive the rotating rod 9 to rotate, thereby driving the driving disk 8 to rotate, so that the round rod 7 drives the sliding rod 5 to slide to the outside of the first fixed cylinder 4, thereby driving the arc-shaped anti-slip ring 6 to enter the circular groove of the second fixed cylinder 11, so that the second fixed cylinder 11 is fixed to the first fixed cylinder 4, so that the furnace door 2 is fixed and cannot be opened.

[0028] Example 2: Reference Figure 1-Figure 7 , which is basically the same as the embodiment, and further, the sliding rod 5 passes through the first fixed cylinder 4 and is slidably connected to the first fixed cylinder 4, and a spring 12 is sleeved on the sliding rod 5 near the inside of the first fixed cylinder 4, one end of the spring 12 is fixedly connected to the inner wall of the first fixed cylinder 4, and the other end of the spring 12 is fixedly connected to the round rod 7.

[0029] In the utility model, the sliding rod 5 can compress the spring 12 when sliding, and the spring 12 can play an auxiliary role when opening the furnace door 2, so as to facilitate the disengagement of the arc-shaped anti-slip ring 6 from the circular groove of the second fixing cylinder 11.

[0030] An arc-shaped sliding hole is opened on the surface of the driving disk 8 , and the round rod 7 passes through the arc-shaped sliding hole of the driving disk 8 and is slidably connected with the arc-shaped sliding hole of the driving disk 8 .

[0031] In the present invention, through the arc-shaped sliding hole on the surface of the driving disk 8, when the driving disk 8 rotates, the sliding rod 5 cooperates with the upper limit of the first fixed cylinder 4 to drive the round rod 7 to slide in its arc-shaped sliding hole, thereby driving the sliding rod 5 to slide.

[0032] The spiral slide rod 10 penetrates the mounting plate 3 and is rotatably connected to the mounting plate 3 . A circular groove is provided on the inner wall of the first fixed cylinder 4 . The driving disk 8 is rotatably connected in the circular groove of the first fixed cylinder 4 .

[0033] In the utility model, the circular groove of the first fixed cylinder 4 can support the driving disk 8, which helps to make the driving disk 8 rotate stably, and the spiral slide rod 10 can be supported by the mounting plate 3.

[0034] The first fixing tube 4 is slidably connected to the inside of the second fixing tube 11 , and the arc-shaped anti-slip ring 6 is slidably connected to the circular groove of the second fixing tube 11 .

[0035] In the utility model, when the arc-shaped anti-slip ring 6 enters the circular groove of the second fixing tube 11, the second fixing tube 11 can be limited, and the furnace door 2 cannot be opened at this time.

[0036] Example 3: Reference Figure 4-Figure 6 , which is basically the same as the embodiment, further, a sealing barrel 13 is fixedly connected to the surface of the mounting plate 3, the internal piston of the sealing barrel 13 is connected to a piston disc 14, and the space between the piston disc 14 and the sealing barrel 13 is fixedly filled with expandable gas.

[0037] In the utility model, through the working principle of thermal expansion and contraction, when the temperature in the catalytic degreasing furnace body 1 increases, the easily expandable gas will expand due to the heat, causing the piston disc 14 to slide toward the inner side of the catalytic degreasing furnace body 1. On the contrary, when the temperature decreases, the piston disc 14 will automatically reset under the action of gas contraction, which is convenient for automatic control.

[0038] A push rod 15 is fixedly connected to the inner surface of the piston circular plate 14, and the push rod 15 passes through the sealing barrel 13 and the mounting plate 3 and is slidably connected to the sealing barrel 13 and the mounting plate 3. A smooth rod 16 is fixedly connected to the inner surface of the push rod 15, and the smooth rod 16 is slidably connected to the slide groove of the spiral slide groove rod 10.

[0039] In the utility model, when the furnace door 2 needs to be closed for catalytic degreasing operation, the furnace door 2 is closed, and the furnace door 2 drives the second fixed cylinder 11 to be sleeved on the outside of the first fixed cylinder 4, and the temperature in the catalytic degreasing furnace body 1 gradually increases. At this time, the easily expandable gas in the sealing barrel 13 begins to expand due to heat, thereby driving the piston circular plate 14 to slide toward the inner side of the catalytic degreasing furnace body 1, thereby driving the smooth rod 16 to move, and at the same time, the smooth rod 16 and the spiral slide groove rod 10 are in conflict with each other to drive the spiral slide groove rod 10 to rotate, thereby causing the rotating rod 9 and the driving plate 8 to rotate, so that the arc-shaped anti-skid The ring 6 contacts and enters the inner wall of the circular groove of the second fixed cylinder 11, thereby limiting the furnace door 2 and preventing it from opening. When the catalytic degreasing is completed, the temperature inside the catalytic degreasing furnace body 1 slowly decreases. Through thermal expansion and contraction, the piston round plate 14 slowly resets, thereby driving the smooth rod 16 to slowly reset and causing the spiral slide groove rod 10 to rotate in the opposite direction, thereby causing the arc-shaped anti-slip ring 6 to disengage from the circular groove of the second fixed cylinder 11. Only then can the furnace door 2 be opened, thereby preventing the staff from being scalded by opening the furnace door 2 when the internal temperature of the catalytic degreasing furnace body 1 has not yet decreased.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A catalytic degreasing device for powder injection molding blanks, comprising a catalytic degreasing furnace body (1) and a furnace door (2), wherein a cavity is provided inside the catalytic degreasing furnace body (1), characterized in that: The catalytic degreasing furnace body (1) has a mounting plate (3) fixedly connected to the inner wall of the bottom of the cavity, and further comprises: A first fixed cylinder (4) is fixedly connected to the mounting plate (3), and three sliding rods (5) are slidably connected to the surface of the first fixed cylinder (4); An arc-shaped anti-slip ring (6) fixedly connected to the sliding rod (5); A round rod (7) fixedly connected to the inner side of the sliding rod (5); A driving disk (8) is rotatably connected in the first fixed cylinder (4), and the round rod (7) is slidably connected in the driving disk (8); A rotating rod (9) is fixedly connected to the inner side of the driving plate (8), and a spiral sliding groove rod (10) is fixedly connected to the inner surface of the rotating rod (9); The second fixing tube (11) is fixedly connected to the inner surface of the furnace door (2), and a circular groove is provided on the inner wall of the second fixing tube (11).

2. A catalytic degreasing device for powder injection molding blanks according to claim 1, characterized in that: The sliding rod (5) passes through the first fixed tube (4) and is slidably connected to the first fixed tube (4); a spring (12) is sleeved on the sliding rod (5) near the inside of the first fixed tube (4); one end of the spring (12) is fixedly connected to the inner wall of the first fixed tube (4); and the other end of the spring (12) is fixedly connected to the round rod (7).

3. The catalytic degreasing device for powder injection molding blanks according to claim 1, characterized in that: An arc-shaped sliding hole is provided on the surface of the driving disk (8), and the round rod (7) passes through the arc-shaped sliding hole of the driving disk (8) and is slidably connected to the arc-shaped sliding hole of the driving disk (8).

4. The catalytic degreasing device for powder injection molding blanks according to claim 1, characterized in that: The spiral slide rod (10) passes through the mounting plate (3) and is rotatably connected to the mounting plate (3); a circular groove is provided on the inner wall of the first fixed cylinder (4); and the driving disk (8) is rotatably connected in the circular groove of the first fixed cylinder (4).

5. The catalytic degreasing device for powder injection molding blanks according to claim 1, characterized in that: The first fixed tube (4) is slidably connected to the inside of the second fixed tube (11), and the arc-shaped anti-slip ring (6) is slidably connected to the circular groove of the second fixed tube (11).

6. The device for catalytic degreasing of powder injection molding blanks according to claim 1, characterized in that: A sealing barrel (13) is fixedly connected to the surface of the mounting plate (3); an internal piston of the sealing barrel (13) is connected to a piston disc (14); and an expandable gas is fixedly filled between the piston disc (14) and the sealing barrel (13).

7. A catalytic degreasing device for powder injection molding blanks according to claim 6, characterized in that: A push rod (15) is fixedly connected to the inner surface of the piston circular plate (14), and the push rod (15) passes through the sealing barrel (13) and the mounting plate (3) and is slidably connected to the sealing barrel (13) and the mounting plate (3). A smooth rod (16) is fixedly connected to the inner surface of the push rod (15), and the smooth rod (16) is slidably connected to the slide groove of the spiral slide groove rod (10).

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