A mold heating furnace

Abstract

The application discloses a mold heating furnace capable of preventing heat loss, and relates to the technical field of mold heating. The mold heating furnace comprises a heating body, blowoff ports are symmetrically arranged on the two sides of the heating body, exhaust ports are arranged in the side wall grooves of the heating body, a placing table is slidably arranged in the heating body, a rotary motor is fixedly arranged in the placing table, circulating pipelines are equidistantly arranged on the two sides of the placing table, and a rotating rod is connected to the output end of the rotary motor. The sealing plates arranged on the two sides ensure the sealing property of the whole heating body, prevent heat loss, and periodically open and close the sealing plates through the push mechanism, so that the condensed gas accumulated in the heating body is discharged, the temperature difference between the upper and lower molds is prevented from being too large, and the mold moves up and down in the rotating process through the added moving mechanism, the heat stratification on the mold surface is destroyed, and the whole mold is heated more uniformly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mold heating, in particular to a mold heating furnace capable of preventing heat loss. BACKGROUND

[0002] The mold heating furnace is an industrial equipment mainly used for preheating the mold to its required working temperature, and is commonly used in processes such as injection molding, die casting, rubber molding, and composite material molding. The core purpose of the mold heating furnace is to ensure that the mold reaches a uniform and stable target temperature before production begins, which is crucial for ensuring product quality, improving production efficiency, and prolonging the service life of the mold. Initially applied in the temperature control industry of injection molding, the mold heating furnace has become increasingly widely used with the development of the mechanical industry. Now, mold heating furnaces are generally divided into water heating furnaces, oil heating furnaces, and hot air furnaces. The mold heating furnace is a key auxiliary equipment in modern manufacturing that can improve efficiency, ensure quality, and protect the mold. Selecting the appropriate type and using it correctly can significantly optimize the entire production process.

[0003] However, some existing mold heating furnaces are susceptible to local overheating or cold zones due to the shape of the mold and the surface reflectivity during actual use. In addition, the overall uniformity is poor due to the bottom contact heating. During the heating process, the cold air formed by the mold colliding with the bottom will be retained in the body, and some existing mold heating furnaces may not be able to timely discharge this part of the cold air outside the body, resulting in the accumulation of local cold air in the heating furnace, causing uneven heating of the mold, and a large temperature difference between the upper and lower parts of the mold, which damages the mold itself and affects the overall heat preservation effect. If an exhaust port is opened, the heat preservation effect of the heating furnace itself cannot be guaranteed, resulting in heat loss and affecting the use effect of the device.

[0004] In view of the above problems, it is necessary to make innovative design on the basis of the original. SUMMARY

[0005] The present application aims to provide a mold heating furnace capable of preventing heat loss to solve the problems raised in the background art. The technical solution of the present application provides a significantly different solution from the existing technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a mold heating furnace capable of preventing heat loss, comprising a heating body, blowout openings are symmetrically arranged on two sides of the heating body, an exhaust opening is arranged in a groove on the side wall of the heating body, a placing table is slidably arranged in the heating body, a rotary motor is fixedly arranged in the placing table, circulation pipelines are symmetrically arranged on two sides of the placing table, a rotating rod is connected to the output end of the rotary motor, a movable sleeve rod is slidably arranged on the upper end of the rotating rod through a limiting block, a rotating disc is fixedly arranged on the rotating rod, a rotating disc is fixedly arranged on the upper end of the movable sleeve rod, and an extrusion plate is elastically slidably arranged on the placing table;

[0007] A pushing mechanism is arranged on the side wall of the heating body, and the pushing mechanism is used for opening the exhaust openings on the two sides of the heating body.

[0008] A moving mechanism is arranged in the placing table, and the moving mechanism is used for assisting the rotating disc in moving up and down.

[0009] Preferably, the pushing mechanism comprises an active plate, the active plate is elastically slidably arranged in the heating body, a sealing plate is fixedly connected to the active plate, and the sealing plate is slidably arranged in the groove on the side wall of the heating body.

[0010] Preferably, the length of the sealing plate is the same as the length of the groove of the heating body, the active plate is in the shape of "L" when viewed from above, the active plate is symmetrically arranged about the left and right sides of the extrusion plate, the horizontal end of the active plate is arranged to be inclined, and the inclined surface of the active plate is located on the movement track of the extrusion plate.

[0011] Preferably, the air inlet of the circulation pipeline is opposite to the blowout opening, and the air outlet of the circulation pipeline is arranged to be inclined below the placing table and opposite to the exhaust opening.

[0012] Preferably, the rotating disc is in the shape of an ellipse when viewed from above, the rotating disc is located on the same horizontal line as the extrusion plate, and the extrusion plate is located on the movement track of the rotating disc.

[0013] Preferably, the moving mechanism comprises a track groove, the track groove is arranged on the surface of the placing table, a limiting clamp is slidably arranged on the placing table, and an abutting plate is fixedly arranged at the lower end of the limiting clamp.

[0014] Preferably, the limiting clamp is elastically slidably arranged in the track groove through a connecting block, and the limiting clamp is symmetrically arranged about the left and right sides of the rotating disc.

[0015] Preferably, the moving mechanism further comprises an abutting block, the abutting block is fixedly arranged in the cavity in the placing table, and the abutting block is symmetrically arranged about the horizontal center line of the placing table.

[0016] Preferably, the bottom of the abutting plate is provided in a circular arc shape, and the abutting block is in an inclined shape in side view and is located on the rotating track of the abutting plate.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The present application seals the air outlets on both sides of the machine body by the sealing plates arranged on both sides, so that the interior of the machine body can be quickly raised to a suitable heating temperature under the action of the air outlets. The sealing plates reduce the time required for temperature rise due to good sealing. When the interior of the machine body is heated to the target temperature, the controller starts the rotary motor to drive the rotating disc to rotate. The rotating disc periodically pushes the moving extrusion plate to move and contact the inclined surface of the movable plate, thereby pushing the movable plate to move to both sides of the heating machine body and synchronously driving the sealing plates to move, so that the air outlets on both sides are periodically opened and sealed. The circulating pipeline at the bottom of the object placing table collects the air with a lower temperature at the bottom and discharges the air through the air outlets, thereby preventing the accumulation of cold air and affecting the overall temperature rise effect of the device. The sealing plates arranged on both sides can effectively seal the heating furnace during the temperature rise stage, thereby preventing heat loss during the temperature rise stage and improving the overall heat preservation effect of the device.

[0019] Further, the rotating disc is driven to rotate by the cooperation of the rotating rod and the movable sleeve rod during the rotation of the rotating disc. The mold fixed by the limiting clamps is synchronously rotated with the rotating disc, so that the outer side of the mold can be uniformly heated by the hot air of the air outlets, the mold can be more synchronously heated, and the circulating pipeline arranged at the bottom delivers part of the hot air to the bottom of the object placing table, so that the temperature at the bottom of the object placing table can be synchronized with the temperature of the air outlets, thereby uniformly heating the bottom of the mold and reducing the temperature difference between the top and bottom of the mold.

[0020] Still further, the mold is stably clamped by the limiting clamps arranged in a symmetrical manner, and the position of the abutting plate at the bottom is changed according to the length of different molds, so that the abutting plate and the abutting block are in contact at different positions during the rotation of the rotating disc, thereby changing the rising height of the rotating disc and reducing the phenomenon of thermal stratification during the heating process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0022] Figure 2 It is a schematic diagram of the internal structure of the heating machine body of the present application;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the object placing table of the present application;

[0024] Figure 4 It is a schematic diagram of the rotating disc structure of the present application;

[0025] Figure 5 It is a schematic diagram of the connecting structure of the rotating disc and the rotating disc of the present application;

[0026] Figure 6 It is a schematic diagram of the internal structure of the object placing table of the present application;

[0027] Figure 7 It is a schematic diagram of the connecting structure of the rotating rod and the movable sleeve rod of the present application;

[0028] Figure 8 It is a schematic diagram of the structure of the extrusion plate and the movable plate of the present application;

[0029] Figure 9 It is a schematic diagram of the structure of the movable plate of the present application.

[0030] In the figure: 1, heating body; 2, air outlet; 3, exhaust port; 4, object placing table; 5, rotating motor; 6, circulating pipeline; 7, rotating rod; 8, movable sleeve rod; 9, rotating disc; 10, rotating disc; 11, extrusion plate; 12, movable plate; 13, sealing plate; 14, track groove; 15, limiting clamp; 16, abutting plate; 17, connecting block; 18, abutting block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Please refer to Figures 1-9 The present application provides a technical solution: a mold heating furnace for preventing heat loss, comprising a heating body 1, air outlets 2 symmetrically provided on both sides of the heating body 1, exhaust ports 3 provided in the side wall grooves of the heating body 1, an object placing table 4 slidingly installed inside the heating body 1, a rotating motor 5 fixedly installed inside the object placing table 4, circulating pipelines 6 equidistantly provided on both sides of the object placing table 4, a rotating rod 7 connected to the output end of the rotating motor 5, a movable sleeve rod 8 slidingly installed on the upper end of the rotating rod 7 through a bump limiting damping, a rotating disc 9 fixedly installed on the rotating rod 7, a rotating disc 10 fixedly installed on the upper end of the movable sleeve rod 8, and an extrusion plate 11 elastically slidingly installed on the object placing table 4.

[0033] A pushing mechanism is provided on the side wall of the heating body 1, and the pushing mechanism is used to open the exhaust ports 3 on both sides of the heating body 1.

[0034] The moving mechanism is arranged in the interior of the placing table 4, and is used for assisting the up-down movement of the rotating disc 10.

[0035] As an embodiment of the present application, the pushing mechanism comprises a movable plate 12 which is elastically slidably arranged in the interior of the heating body 1, and a sealing plate 13 which is fixedly connected to the movable plate 12 and slidably arranged in a groove formed in the sidewall of the heating body 1.

[0036] As an embodiment of the present application, the length of the sealing plate 13 is the same as the length of the groove of the heating body 1, the movable plate 12 is in the shape of "L" in plan view, and the movable plate 12 is symmetrically arranged about the left and right of the extrusion plate 11, and the lateral end of the movable plate 12 is arranged to be inclined, and the inclined surface of the movable plate 12 is located on the movement track of the extrusion plate 11.

[0037] As an embodiment of the present application, the air inlet of the circulating pipeline 6 is opposite to the blowing port 2, and the air outlet of the circulating pipeline 6 is arranged to be inclined below the placing table 4 and opposite to the exhaust port 3.

[0038] As an embodiment of the present application, the rotating disc 9 is in the shape of an ellipse in plan view, and the rotating disc 9 is located on the same horizontal line as the extrusion plate 11, and the extrusion plate 11 is located on the movement track of the rotating disc 9.

[0039] The sealing plate 13 is arranged to seal the heating body 1, so that the body can be quickly heated to the target temperature, and the controller is arranged to control the rotating motor 5 to rotate, so that the rotating motor 5 can drive the rotating disc 9 to rotate, and the rotating disc 9 and the extrusion plate 11 are arranged to periodically abut, so that the extrusion plate 11 drives the sealing plate 13 to reciprocate through the contact with the movable plate 12, thereby periodically opening and closing the exhaust port 3 to discharge the condensed gas in the body.

[0040] As an embodiment of the present application, the moving mechanism comprises a track groove 14 which is formed in the surface of the placing table 4, a limiting clamp 15 which is slidably arranged on the placing table 4, and an abutting plate 16 which is fixedly arranged at the lower end of the limiting clamp 15.

[0041] As an embodiment of the present application, the limiting clamp 15 is elastically slidably arranged in the track groove 14 through a connecting block 17, and the limiting clamp 15 is symmetrically arranged about the left and right of the rotating disc 10.

[0042] As an embodiment of the present application, the moving mechanism further comprises an abutting block 18 which is fixedly arranged in the interior cavity of the placing table 4, and the abutting block 18 is symmetrically arranged about the horizontal center line of the placing table 4.

[0043] As an embodiment of the present application, the bottom of the abutting plate 16 is arranged to be in the shape of a circular arc, the abutting block 18 is arranged to be inclined in side view, and the abutting block 18 is located on the movement track of the abutting plate 16.

[0044] Part of the heating gas is delivered to the inside of the workbench 4 through the circulating pipeline 6 arranged, so that the workbench 4 can also have a synchronous temperature rise on the surface, and the mold bottom can also be heated synchronously, thereby reducing the heat loss caused by the temperature difference between the upper and lower molds, affecting the heat preservation effect. At the same time, the rotating disc 10 drives the mold to rotate synchronously through the limiting clamp 15, so that the surface of the mold can uniformly receive the hot air blown out by the air outlet 2, thereby being uniformly heated. In the rotating process, the abutting plate 16 and the abutting block 18 periodically contact, pushing the rotating disc 10 to move up and down, so that the rotating disc 10 drives the mold to move up and down, reducing the thermal stratification of the mold and better heating the mold.

[0045] Working principle: the mold is placed on the rotating disc 10 of the workbench 4 through the limiting clamp 15, and the workbench 4 is pushed into the heating body 1, then the heating body 1 is started, the internal sealing heating body 1 is rapidly heated by the hot air blown in by the air outlet 2, and then the internal temperature of the body is rapidly reached. When the temperature reaches the target temperature, the controller starts the rotating motor 5 to rotate, the rotating motor 5 drives the rotating disc 9 to rotate, so that the oval rotating disc 9 periodically abuts against the pressing plate 11, pushing the pressing plate 11 to reciprocate on the workbench 4. The pressing plate 11 driven by the slope of the movable plate 12 is constantly in contact, thereby pushing the movable plate 12 to constantly move to both sides of the heating body 1, and simultaneously driving the sealing plate 13 to move synchronously through the movement of the movable plate 12, thereby periodically opening and closing the air outlet 3. At the same time, in the process of heating, the workbench 4 circulates the hot air through the workbench 4 through the circulating pipeline 6, so that the overall temperature of the workbench 4 is also raised, thereby effectively heating the bottom of the material through the rotating disc 10, preventing the mold from having a large temperature difference between the upper and lower molds during heating. At the same time, the circulating cold air is discharged to the lower part of the body through the circulating pipeline 6 and discharged through the air outlet 3.

[0046] In the rotating process of the rotating disc 10, the abutting plate 16 at the bottom of the limiting clamp 15 and the abutting block 18 periodically abut, and the limiting clamp 15 drives the abutting plate 16 to synchronously adjust the position according to different lengths of materials, and the rotating disc 10 moves up and down through the contact between the bottom abutting plate 16 and the abutting block 18, thereby destroying the thermal stratification on the surface of the mold and uniformly heating the mold.

[0047] The content not described in detail in the specification belongs to the prior art known to those skilled in the art. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A mold heating furnace for preventing heat loss, comprising a heating body (1), characterized in that: The heating body (1) has symmetrical air vents (2) on both sides, and an exhaust vent (3) in the groove of the side wall of the heating body (1). A platform (4) is slidably installed inside the heating body (1). A rotary motor (5) is fixedly installed inside the platform (4). Circulation pipes (6) are arranged at equal distances on both sides of the platform (4). A rotating rod (7) is connected to the output end of the rotary motor (5). A movable sleeve rod (8) is slidably installed on the upper end of the rotating rod (7) through a protrusion limiting damping. A rotating disk (9) is fixedly installed on the rotating rod (7). A rotating disk (10) is fixedly installed on the upper end of the movable sleeve rod (8). An extrusion plate (11) is elastically slidably installed on the platform (4). A pushing mechanism is provided on the side wall of the heating body (1) and is used to open the exhaust ports (3) on both sides of the heating body (1). The pushing mechanism includes a movable plate (12), which is elastically slidably installed inside the heating body (1). A sealing plate (13) is fixedly connected to the movable plate (12). The sealing plate (13) is slidably installed in a groove opened on the side wall of the heating body (1). The length of the sealing plate (13) is the same as the length of the groove of the heating body (1). The movable plate (12) is L-shaped when viewed from above. The movable plate (12) is symmetrically arranged about the left and right sides of the extrusion plate (11). The horizontal end of the movable plate (12) is set to be inclined. The inclined surface of the movable plate (12) is located on the movement trajectory of the extrusion plate (11). The air inlet of the circulation pipe (6) is opposite to the air outlet (2). The air outlet of the circulation pipe (6) is inclinedly arranged below the platform (4) and opposite to the exhaust outlet (3). The rotating disk (9) is elliptical when viewed from above. The rotating disk (9) and the extrusion plate (11) are located on the same horizontal line. The extrusion plate (11) is located on the movement trajectory of the rotating disk (9). The moving mechanism is located inside the platform (4) and is used to assist the rotating disk (10) in moving up and down.

2. The mold heating furnace for preventing heat loss according to claim 1, characterized in that: The moving mechanism includes a track groove (14) which is formed on the surface of the platform (4). A limit clamp (15) is slidably installed on the platform (4), and an abutment plate (16) is fixedly installed at the lower end of the limit clamp (15).

3. The mold heating furnace for preventing heat loss according to claim 2, characterized in that: The limiting clamp (15) is elastically slidably installed in the track groove (14) via the connecting block (17), and the limiting clamp (15) is symmetrically arranged about the left and right sides of the rotating disk (10).

4. A mold heating furnace for preventing heat loss according to claim 3, characterized in that: The moving mechanism also includes an abutment block (18), which is fixedly installed in the cavity inside the shelf (4) and is symmetrical about the horizontal center line of the shelf (4).

5. A mold heating furnace for preventing heat loss according to claim 4, characterized in that: The bottom of the abutment plate (16) is set in an arc shape, the abutment block (18) is tilted when viewed from the side, and the abutment block (18) is located on the rotation trajectory of the abutment plate (16).

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