Device for heating feeding barrel of powder metallurgy press
By using a double-layer barrel and an electric push rod to drive the anti-blocking pipe, the problem of arching in the heating device of the feeding barrel of the powder metallurgy press is solved, thus achieving uniform flow of powder materials and improving the quality of finished products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-07
AI Technical Summary
The existing powder metallurgy press feeding hopper heating device is prone to bridging during the heating process, which causes the powder material to flow into the mold unevenly, affecting the quality and density of the finished product.
It adopts a double-layer barrel design, with an inner heating liner and an outer mechanical support. The inner liner circulates heated oil and uses an electric push rod to drive the anti-clogging pipe to clear blockages and prevent powder from forming arch bridges.
It effectively prevents powder materials from forming arches during the feeding process, ensuring uniform flow and improving the quality and density of the pressed finished product.
Smart Images
Figure CN224087968U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of powder metallurgy process's auxiliary appliance technique, especially, a kind of powder metallurgy press feeding barrel heating device. BACKGROUND
[0002] Powder metallurgy press is a kind of equipment specially used in powder metallurgy process, mainly by high pressure and is pressed into the required shape of metal or non-metal powder parts.Powder material is usually composed of different metals or alloys in the process of powder metallurgy, and due to the characteristics of powder particles, it is easy to loose or uneven.In order to ensure the smooth progress of pressing process, powder metallurgy press often needs to heat the feeding barrel.The purpose of heating is to reduce the viscosity of powder material, improve fluidity, prevent the phenomenon of powder material sticking or blocking in the pressing process, so as to ensure the forming quality and production efficiency.In addition, heating can also help powder material to better fusion, reduce material loss, improve the density and strength of pressing product;
[0003] In the prior art, the heating device of powder metallurgy press feeding barrel usually adopts electric heating, hot air heating or hot water circulation heating mode.The working principle is usually to conduct heat to the inside of feeding barrel through heating element (such as electric heating tube, heating plate, etc.) or hot air system, so that the powder material reaches the required fluidity and bonding performance.In electric heating system, electric heating element generates heat through electric current, directly heats the wall surface of feeding barrel, so that the powder in the barrel gradually warms up;while hot air system blows hot air directly into the barrel body, so that the temperature is evenly distributed, and the temperature of the material is maintained.In some designs, hot water circulation system uses hot water pipeline to heat the outer wall of feeding barrel to realize temperature transfer and stability.Through heating, the fluidity of powder material in feeding barrel is improved, and the blocking and uneven distribution of powder are reduced, which helps to improve the density of pressing product;
[0004] In the prior art, although the heating device of some powder metallurgy press feeding barrel can heat metallurgical powder to improve its fluidity, but "arch bridge" phenomenon still occurs.Arch bridge phenomenon refers to the formation of arch bridge-like structure in the feeding barrel when powder is subjected to pressure, which will cause the powder material to flow into the pressing mold unevenly, thereby affecting the quality and density of finished product.Even if heating can improve the fluidity of powder, due to the mutual friction between powders and the influence of particle shape, part of powder will still form stable arch structure in the barrel, hindering the normal flow of feeding, therefore a powder metallurgy press feeding barrel heating device is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a kind of powder metallurgy press feeding barrel heating device, to improve the existing technology in part powder metallurgy press feeding barrel heating device although metallurgical powder is heated, but still there will be arch bridge phenomenon Problem.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a kind of powder metallurgy press feeding barrel heating device, including double-layer barrel body, the outside fixed connection of double-layer barrel body has material barrel mounting bracket, the inside fixed connection heating mechanism of double-layer barrel body, the bottom fixed connection of double-layer barrel body has discharge port, the outside fixed connection of discharge port has anti-blocking mechanism;
[0007] The heating mechanism includes inner container fixing frame, the inside fixed connection of inner container fixing frame in the double-layer barrel body, the bottom fixed connection of inner container fixing frame has heating inner container, the outside fixed connection of heating inner container has oil inlet, the outside fixed connection of heating inner container has oil outlet, and the heating inner container is suspended in the inside of double-layer barrel body;
[0008] As further description of the above technical scheme: anti-blocking mechanism includes push rod mounting bracket, the outside fixed connection of push rod mounting bracket in the discharge port, the inside fixed connection of push rod mounting bracket has electric push rod, the bottom fixed connection of electric push rod has sliding block, the rear side fixed connection of sliding block two anti-blocking pipes, the inside fixed connection of anti-blocking pipe in the discharge port;
[0009] As further description of the above technical scheme: the inside of double-layer barrel body is equipped with cavity, the cavity is filled with heat preservation cotton, and temperature sensor mounting hole is arranged in the inside of double-layer barrel body;
[0010] As further description of the above technical scheme: the heating inner container is two-end small middle large cylindrical block, the inside of heating inner container is equipped with oil storage groove, and the oil inlet and the oil outlet are fixedly connected in the inside of oil storage groove;
[0011] As further description of the above technical scheme: the inside of discharge port is equipped with sliding groove, and the sliding block is slidably connected in the sliding groove;
[0012] As further description of the above technical scheme: the sliding block is Y-shaped block, and two anti-blocking pipes are fixedly connected at two ends of the sliding block respectively;
[0013] As further description of the above technical scheme: the discharge port is formed by two circular tubes, and two anti-blocking pipes are slidably connected in the inside of two circular tubes respectively;
[0014] As a further description of the above technical solutions: the double-layer barrel body is internally provided with an inlet chute, the discharge port is connected with the bottom of the inlet chute, the heating inner container is hung in the interior of the inlet chute, and the inner container fixing frame is fixedly connected in the interior of the inlet chute.
[0015] The utility model has the advantages of the following:
[0016] 1、The oil after heating enters the interior of the heating inner container through the oil inlet, and the metallurgical powder is heated through the heat insulation technology, so that the metallurgical powder does not become sticky or coagulate due to low temperature, and the powder does not appear to be jammed, blocked or unevenly flow in the feeding process, and the oil in the interior of the heating inner container returns to the oil heating device through the oil outlet, so that the temperature of the oil is ensured, and the stability of the device is ensured.
[0017] 2、The electric push rod fixed outside the discharge port is started through the push rod mounting frame, drives the sliding block fixed at the bottom of the electric push rod to slide, and then drives the anti-blocking pipe to slide in the interior of the discharge port through the sliding block, so that the powder does not uniformly flow into the mold in the feeding process due to the arching phenomenon, forms the pressed part with uneven density, and finally the purpose of improving the pressed product is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A three-dimensional schematic view of the powder metallurgy press feeding barrel heating device is provided for the utility model;
[0019] Figure 2 A structure schematic view of the oil inlet of the powder metallurgy press feeding barrel heating device is provided for the utility model;
[0020] Figure 3 A structure schematic view of the barrel mounting frame of the powder metallurgy press feeding barrel heating device is provided for the utility model;
[0021] Figure 4 A structure schematic view of the oil outlet of the powder metallurgy press feeding barrel heating device is provided for the utility model.
[0022] LEGEND:
[0023] 1、Double-layer barrel body;2、Barrel mounting frame;3、Inner container fixing frame;4、Inner container;5、Oil inlet;6、Oil outlet;7、Temperature sensor mounting hole;8、Discharge port;9、Push rod mounting frame;10、Electric push rod;11、Sliding block;12、Anti-blocking pipe. DETAILED DESCRIPTION
[0024] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figures 1 to 3 The present application provides an embodiment: a device for heating a powder metallurgy press feeding barrel, comprising a double-layer barrel body 1, which is a basic part of the entire heating device and is composed of an outer layer and an inner layer. The outer layer provides mechanical support and protection, and the inner layer is mainly used for accommodating a heating inner container 4. The double-layer design not only increases the strength of the barrel body, but also creates a cavity between the inner and outer layers, which is filled with thermal insulation cotton to achieve thermal insulation effect. The thermal insulation cotton can effectively prevent heat loss, improve heating efficiency, and reduce energy consumption. The outer part of the double-layer barrel body 1 is fixedly connected with a barrel mounting rack 2, which is used to install the feeding barrel on the press. The inner part of the double-layer barrel body 1 is fixedly connected with a heating mechanism, which is mainly composed of an inner container fixing rack 3 and the heating inner container 4, and is responsible for transferring heat to the powder material to improve its fluidity. The bottom of the double-layer barrel body 1 is fixedly connected with a discharge port 8, and the outer part of the discharge port 8 is fixedly connected with an anti-blocking mechanism. The inner part of the double-layer barrel body 1 is provided with a cavity, which is filled with thermal insulation cotton. The inner part of the double-layer barrel body 1 is provided with a temperature sensor mounting hole 7, which is used to install a temperature sensor.
[0026] The heating mechanism comprises an inner container fixing rack 3, which provides support for the heating inner container 4. The inner container fixing rack 3 is fixedly connected to the inner part of the double-layer barrel body 1. The bottom of the inner container fixing rack 3 is fixedly connected with the heating inner container 4. The heating inner container 4 is a cylindrical block with larger middle and smaller ends, and an oil storage groove is formed in the inside of the heating inner container 4 for storing heating oil. The outer part of the heating inner container 4 is fixedly connected with an oil inlet 5 and an oil outlet 6. The oil inlet 5 and the oil outlet 6 are used to introduce hot oil into the heating inner container 4 for heating, and to circulate the hot oil out. Thus, the continuous circulation of the hot oil is realized, the constant temperature of the heating inner container 4 is maintained, and the heating inner container 4 is suspended in the inner part of the double-layer barrel body 1.
[0027] The heating inner container 4 is a cylindrical block with smaller ends and larger middle. An oil storage groove is formed in the inside of the heating inner container 4. The oil inlet 5 and the oil outlet 6 are fixedly connected in the inside of the oil storage groove.
[0028] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 2 , Figure 4The anti-blocking mechanism comprises a push rod mounting frame 9, which provides support for an electric push rod 10, the push rod mounting frame 9 is fixedly connected outside the discharge port 8, the inside of the push rod mounting frame 9 is fixedly connected with the electric push rod 10, the electric push rod 10 is the core driving component of the anti-blocking mechanism, and the electric push rod 10 is used for removing the blocking material in the discharge port 8 by pushing the sliding block 11, the bottom of the electric push rod 10 is fixedly connected with the sliding block 11, the sliding block 11 is in the shape of a Y character, this design can effectively disperse the force and improve the unblocking effect, the rear side of the sliding block 11 is fixedly connected with two anti-blocking pipes 12, the anti-blocking pipes 12 can slide in the discharge port 8 under the drive of the sliding block 11, and the anti-blocking pipes 12 can remove the powder material that may cause blocking, the anti-blocking pipes 12 are slidingly connected inside the discharge port 8, a sliding groove is formed in the inside of the discharge port 8, the sliding block 11 is slidingly connected in the sliding groove, the sliding block 11 is in the shape of a Y character, the two anti-blocking pipes 12 are fixedly connected at the two ends of the sliding block 11, and the discharge port 8 is composed of two round pipes, and the two anti-blocking pipes 12 are slidingly connected inside the two round pipes.
[0029] The double-layer barrel body 1 is internally provided with a feeding groove, the feeding groove is used for receiving and storing the powder material to be added into the feeding barrel, the discharge port 8 is connected with the bottom of the feeding groove, and the heating inner container 4 is hung in the inside of the feeding groove.
[0030] Working principle: the feeding barrel is fixed and connected through the barrel mounting frame 2, three support columns fixed outside the barrel mounting frame 2 serve as main supports, then the metallurgical powder is placed in the feeding groove in the double-layer barrel body 1, then the heated oil enters the inside of the heating inner container 4 through the oil inlet 5, the metallurgical powder is heated through the heat insulation technology, so that the metallurgical powder does not become sticky or coagulate due to low temperature, and the powder does not appear to be jammed, blocked or unevenly flowed during the feeding process, then the oil in the heating inner container 4 flows back to the oil heater through the oil outlet 6, so as to ensure the temperature of the oil and avoid the temperature reduction of the oil due to long-time use, and in this process, the inner container fixing frame 3 serves as the support of the heating inner container 4, so as to ensure the stable operation of the heating inner container 4.
[0031] The heated metallurgical powder leaves the feeding groove in the double-layer barrel body 1 through the discharge port 8, in this process, the electric push rod 10 fixed outside the discharge port 8 through the push rod mounting frame 9 is started, then the electric push rod 10 drives the sliding block 11 fixed at the bottom of the electric push rod 10 to slide outside the discharge port 8, and the sliding block 11 drives the anti-blocking pipe 12 fixed at the other end of the sliding block 11 to slide inside the discharge port 8, so as to avoid the arching phenomenon of the metallurgical powder, and improve the feeding efficiency.
[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A device for heating the feeding hopper of a powder metallurgy press, comprising a double-layered hopper (1), characterized in that: The double-layer barrel (1) is fixedly connected to the outside of a material barrel mounting bracket (2), the double-layer barrel (1) is fixedly connected to the inside of a heating mechanism, the bottom of the double-layer barrel (1) is fixedly connected to a discharge port (8), and the discharge port (8) is fixedly connected to the outside of an anti-blocking mechanism. The heating mechanism includes an inner liner fixing frame (3), which is fixedly connected to the inside of the double-layer barrel (1). A heating inner liner (4) is fixedly connected to the bottom of the inner liner fixing frame (3). An oil inlet (5) is fixedly connected to the outside of the heating inner liner (4). An oil outlet (6) is fixedly connected to the outside of the heating inner liner (4). The heating inner liner (4) is suspended inside the double-layer barrel (1).
2. The device for heating the feeding hopper of a powder metallurgy press according to claim 1, characterized in that: The anti-clogging mechanism includes a push rod mounting bracket (9), which is fixedly connected to the outside of the discharge port (8). An electric push rod (10) is fixedly connected inside the push rod mounting bracket (9). A sliding block (11) is fixedly connected to the bottom of the electric push rod (10). Two anti-clogging tubes (12) are fixedly connected to the rear side of the sliding block (11). The anti-clogging tubes (12) are slidably connected inside the discharge port (8).
3. The device for heating the feeding hopper of a powder metallurgy press according to claim 1, characterized in that: The double-layer barrel (1) has an internal cavity filled with insulation cotton, and a temperature sensor mounting hole (7) is provided inside the double-layer barrel (1).
4. The device for heating the feeding hopper of a powder metallurgy press according to claim 1, characterized in that: The heating inner liner (4) is a cylindrical block that is small at both ends and large in the middle. An oil storage tank is provided inside the heating inner liner (4), and the oil inlet (5) and the oil outlet (6) are fixedly connected inside the oil storage tank.
5. The device for heating the feeding hopper of a powder metallurgy press according to claim 2, characterized in that: The discharge port (8) has a sliding groove inside, and the sliding block (11) is slidably connected in the sliding groove.
6. The device for heating the feeding hopper of a powder metallurgy press according to claim 2, characterized in that: The sliding block (11) is a Y-shaped block, and the two anti-blocking tubes (12) are fixedly connected to the two ends of the sliding block (11).
7. The device for heating the feeding hopper of a powder metallurgy press according to claim 2, characterized in that: The discharge port (8) is composed of two round tubes, and the two anti-blocking tubes (12) are slidably connected to the inside of the two round tubes respectively.
8. The device for heating the feeding hopper of a powder metallurgy press according to claim 1, characterized in that: The double-layer barrel (1) has an inlet groove inside, the outlet (8) is connected to the bottom of the inlet groove, the heating inner liner (4) is suspended inside the inlet groove, and the inner liner fixing bracket (3) is fixedly connected inside the inlet groove.