A hot air box debinding furnace for powder injection molding

Abstract

The utility model discloses a powder injection molding hot air box type debinding furnace, including a debinding furnace body, a collecting box and a frame body, wherein the collecting box is arranged inside the debinding furnace body, and the frame body is placed on the open end face of the collecting box, and a plurality of placement rods for placing workpieces are horizontally installed inside the frame body, and channels for glue to flow to the inside of the collecting box are formed between the placement rods, and a guide rail is arranged above the frame body, and an adjustment block is slidingly arranged inside the guide rail, and a plurality of push rods for pushing the workpiece are installed on one side face of the adjustment block. The utility model has a simple structure, and can adjust the distance between the push rods according to the size of the workpiece, so that the workpiece can be placed between the push rods, and the push rod that moves back and forth can drive the workpiece to rub back and forth on the placement rod, so as to completely remove the adhesive at the bottom of the workpiece, and the rotating fan blades can drive the internal high-temperature gas, so that the high-temperature gas can fully contact with the workpiece to increase the debinding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of debinding furnaces, in particular to a hot air box type debinding furnace for powder injection molding. Background Art

[0002] Powder injection molding is an advanced manufacturing technology that combines the technical characteristics of plastic injection molding and the advantages of powder metallurgy. Through this technology, metal or ceramic parts with complex shapes, high precision and excellent performance can be produced. The process usually involves mixing metal or ceramic powder with a plastic material called a "binder", which is then injection molded and undergoes a sintering process to remove the binder and solidify the part.

[0003] A debinding furnace is needed to remove the binder, but the current debinding furnace has a simple structure. After the workpiece is placed inside the debinding furnace, the bottom is always in contact with the bottom surface of the inner cavity of the debinding furnace, resulting in the binder on the bottom of the workpiece cannot be fully removed during the debinding process, thus affecting the debinding quality. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a powder injection molding hot air box debinding furnace, which pushes the workpiece back and forth so that the adhesive on the bottom of the workpiece can be quickly removed by scraping, so as to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical scheme: a powder injection molding hot air box type debinding furnace, comprising a debinding furnace body, a collecting box and a frame body, the collecting box is arranged inside the debinding furnace body, the frame body is placed on the open end surface of the collecting box, a plurality of placement rods for placing workpieces are horizontally installed inside the frame body, and channels for supplying glue to flow to the inside of the collecting box are formed between the placement rods, a guide rail is arranged above the frame body, one end of the guide rail is installed on the inner wall surface of the debinding furnace body, an adjustment block is slidingly arranged inside the guide rail, a plurality of push rods for pushing the workpieces are installed on one side surface of the adjustment block, and fan blades are arranged inside the debinding furnace body.

[0006] As a preferred technical solution, a plurality of screw holes are provided on one side surface of the adjustment block, a stud is installed at one end of the push rod, and the other end of the stud is threadedly connected to the corresponding screw hole.

[0007] As a preferred technical solution, the adjusting block is provided with a screw hole which passes through the adjusting block, a screw is threadedly connected in the screw hole, a sealed bearing is embedded in one end of the guide rail, and the other end is provided with an axial hole connected to the outside world, one end of the screw is installed in the inner ring of the sealed bearing, and the other end is inserted into the axial hole, a first motor is installed on the outer wall of the debinding furnace body, the rotating shaft of the first motor is inserted into the axial hole, and is fixedly connected to the screw through a coupling.

[0008] As a preferred technical solution, a through hole is provided on the top surface of the debinding furnace body, and a second motor is installed on the top surface of the debinding furnace head. The rotating shaft of the second motor is inserted into the through hole, and a rotating shaft is installed thereon. The other end of the rotating shaft passes through the through hole and is fixedly connected to the fan blades.

[0009] As a preferred technical solution, a plurality of slots are provided on the open end surface of the collection box, and plug posts are installed on the bottom surface of the frame body facing the slots, and the other ends of the plug posts are inserted into the slots.

[0010] As a preferred technical solution, both sides of the top of the placement rod are provided with arc-shaped guide parts.

[0011] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and can adjust the distance between the push rods according to the size of the workpiece, so that the workpiece can be placed between the push rods, and the push rods that move back and forth can drive the workpiece to rub back and forth on the placement rods, thereby completely removing the adhesive at the bottom of the workpiece, and the removed adhesive can flow along the channel to the collection box, and the rotating fan blades can drive the internal high-temperature gas, so that the high-temperature gas can fully contact the workpiece to increase the glue removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a bottom view of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model after removing the binder removal furnace body;

[0016] Figure 4 It is a schematic diagram of the structure of the collecting box and the push rod in the utility model.

[0017] Among them, 1. debinding furnace body; 2. collecting box; 3. frame; 4. placing rod; 5. guide rail; 6. adjusting block; 7. push rod; 8. second motor; 9. fan blade; 10. rotating shaft; 11. screw hole; 12. screw rod; 13. stud. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a powder injection molding hot air box type debinding furnace of the utility model comprises a debinding furnace body 1, a collecting box 2 and a frame 3, wherein the collecting box 2 is arranged inside the debinding furnace body 1, and the frame 3 is placed on the open end surface of the collecting box 2, and a plurality of placement rods 4 for placing workpieces are horizontally installed inside the frame 3, and channels for supplying glue to flow to the inside of the collecting box 2 are formed between the placement rods 4, and a guide rail 5 is arranged above the frame 3, and one end of the guide rail 5 is installed on the inner wall surface of the debinding furnace body 1, and an adjusting block 6 is slidably arranged inside the guide rail 5, and a plurality of push rods 7 for pushing the workpieces are installed on one side surface of the adjusting block 6, and a fan blade 9 is arranged inside the debinding furnace body 1.

[0022] In this embodiment, a plurality of screw holes 11 are provided on one side surface of the adjustment block 6 , a stud 13 is installed at one end of each push rod 7 , and the other end of each stud 13 is threadedly connected to the corresponding screw hole 11 .

[0023] In this embodiment, a screw rod 12 hole passing through the adjusting block 6 is provided on the adjusting block 6, and the screw rod 12 is threadedly connected in the screw rod 12 hole. A sealed bearing is embedded in one end of the guide rail 5, and an axial hole connected to the outside is provided at the other end. One end of the screw rod 12 is installed in the inner ring of the sealed bearing, and the other end is inserted into the axial hole. A first motor is installed on the outer wall of the debinding furnace body 1, and the rotating shaft of the first motor is inserted into the axial hole and fixedly connected to the screw rod 12 through a coupling.

[0024] In this embodiment, a through hole is provided on the top surface of the debinding furnace body 1, and a second motor 8 is installed on the top surface of the debinding furnace head. The rotating shaft of the second motor 8 is inserted into the through hole, and a rotating shaft 10 is installed. The other end of the rotating shaft 10 passes through the through hole and is fixedly connected to the fan blades 9.

[0025] In this embodiment, a plurality of slots are provided on the open end surface of the collection box 2, and plug posts are installed on the bottom surface of the frame 3 at positions corresponding to the slots, and the other ends of the plug posts are inserted into the slots;

[0026] During subsequent cleaning, the collection box and the frame can be taken out, and the frame can be opened, so that the collection box is in an open state, which facilitates the cleaning of the internal adhesive.

[0027] In this embodiment, both sides of the top of the placement rod 4 are provided with arc-shaped guide parts, and the removed adhesive can flow into the channel along the guide parts until it is collected by the collection box.

[0028] When using, first adjust the distance between the push rods according to the size of the workpiece. When adjusting, directly rotate the push rod to screw the stud at one end of the push rod out of the screw hole and thread it into the corresponding screw hole, so that the distance between the push rods matches the width of the workpiece. At this time, the workpiece can pass through the push rods and be placed on the placement rod;

[0029] During the heating and degumming process, the first motor and the second motor can be started to make the first motor rotate forward and reverse continuously. The rotation of the first motor drives the screw rod, and the rotation of the screw rod drives the adjusting block, so that the adjusting block moves back and forth continuously along the guide rail. The movement of the adjusting block drives the push rod, and the moving push rod can drive the workpiece to move back and forth on the placement rod, so that the bottom of the workpiece is scratched against the placement rod, thereby quickly removing the adhesive at the bottom and flowing it into the collection box along the channel. The start-up of the second motor drives the rotating shaft and the fan blades, and the rotating fan blades can drive the internal high-temperature gas, so that the originally static high-temperature gas can flow, and the flowing high-temperature gas can fully contact the workpiece, thereby increasing the efficiency of degumming.

[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A hot air box debinding furnace for powder injection molding, characterized in that: The invention comprises a binder removal furnace body (1), a collecting box (2) and a frame body (3), wherein the collecting box (2) is arranged inside the binder removal furnace body (1), the frame body (3) is placed on the open end surface of the collecting box (2), a plurality of placement rods (4) for placing workpieces are transversely installed inside the frame body (3), and channels for supplying glue to flow into the collecting box (2) are formed between the placement rods (4), a guide rail (5) is arranged above the frame body (3), one end of the guide rail (5) is installed on the inner wall surface of the binder removal furnace body (1), an adjustment block (6) is slidably arranged inside the guide rail (5), a plurality of push rods (7) for pushing the workpieces are installed on one side surface of the adjustment block (6), and a fan blade (9) is arranged inside the binder removal furnace body (1).

2. The hot air box debinding furnace for powder injection molding according to claim 1, characterized in that: A plurality of screw holes (11) are arranged on one side surface of the adjusting block (6), a stud (13) is installed at one end of the push rod (7), and the other end of the stud (13) is threadedly connected to the corresponding screw hole (11).

3. The hot air box debinding furnace for powder injection molding according to claim 1, characterized in that: The adjusting block (6) is provided with a screw rod (12) hole which passes through the adjusting block (6), and the screw rod (12) is threadedly connected in the screw rod (12) hole. A sealed bearing is embedded in one end of the guide rail (5), and an axial hole which is connected to the outside is provided at the other end. One end of the screw rod (12) is installed in the inner ring of the sealed bearing, and the other end is inserted into the axial hole. A first motor is installed on the outer wall surface of the debinding furnace body (1), and the rotating shaft of the first motor is inserted into the axial hole and fixedly connected to the screw rod (12) through a coupling.

4. The hot air box debinding furnace for powder injection molding according to claim 1, characterized in that: A through hole is provided on the top surface of the debinding furnace body (1), a second motor (8) is installed on the top surface of the debinding furnace head, a rotating shaft of the second motor (8) is inserted into the through hole, and a rotating shaft (10) is installed, the other end of the rotating shaft (10) passes through the through hole and is fixedly connected to the fan blade (9).

5. The hot air box debinding furnace for powder injection molding according to claim 1, characterized in that: A plurality of slots are arranged on the open end surface of the collection box (2), and plug posts are installed on the bottom surface of the frame body (3) at locations corresponding to the slots, and the other ends of the plug posts are inserted into the slots.

6. The hot air box debinding furnace for powder injection molding according to claim 1, characterized in that: Both sides of the top of the placement rod (4) are provided with flow guide parts with an arc structure.

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