Solder drying machine for steel welding

Abstract

The invention is suitable for the technical field of dryers, and provides a welding flux dryer for steel welding, which comprises a storage bin, a heating bin, an airflow feeding assembly and a heating assembly, a material gathering type discharging opening is formed below the heating bin, and a movable plugging assembly is arranged at an opening of the material gathering type discharging opening; an exhaust port is formed in the bin wall of the heating bin; a barrier supporting plate is movably arranged in the heating bin and is connected with a driving assembly; in the early stage of feeding, the periphery of the blocking supporting plate makes contact with the side wall close to the material gathering type discharging opening, so that the internal space of the heating bin is divided into a to-be-released space and a main heating space; in the later stage of feeding, the blocking supporting plate cancels blocking work, so that the space in the heating bin is integrated, airflow feeding work is achieved, heat is matched with airflow to improve the material drying efficiency, meanwhile, the blocking supporting plate conducts state switching according to the feeding amount to change the space layout in the heating bin, and the drying efficiency is improved. And the uniformity and the drying efficiency of the materials are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drying machines, and particularly to a solder drying machine for steel welding. Background Art

[0002] A solder drying machine is mainly used to remove moisture and volatile substances in the solder, prevent the generation of pores and splashes during welding, and at the same time extend the life of the solder and prevent the solder from oxidizing and deteriorating.

[0003] During the working process of the solder drying machine, a stirring structure arranged in the heating chamber drives the solder to continuously contact with the heating roller, and the heating roller outputs heat to disperse the moisture and volatile substances in the solder. However, in the above drying process, the heat transfer speed is limited, and at the same time, the moisture and volatile substances are discharged by natural evaporation (the discharge speed is slow), resulting in low efficiency of the entire drying process.

[0004] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0005] Aiming at the above defects, the purpose of the present invention is to provide a solder drying machine for steel welding, which realizes air-flow feeding work, and heat cooperates with air flow to improve the drying efficiency of materials. At the same time, the barrier pallet switches its state according to the feeding amount to change the spatial layout in the heating chamber, further improving the uniformity and drying efficiency of the materials.

[0006] To achieve the above purpose, the present invention provides a solder drying machine for steel welding, including a storage bin and a heating chamber arranged on a frame, an air-flow feeding component for driving materials to enter the heating chamber from the storage bin, and a heating component arranged in the heating chamber for heating the inside of the chamber; a material-gathering type discharging port is arranged below the heating chamber, and a movable blocking component is arranged at its opening; an exhaust port is opened on the chamber wall of the heating chamber; a barrier pallet is movably arranged in the heating chamber, and it is connected to a driving component; in the early stage of feeding, the periphery of the barrier pallet contacts the side wall close to the material-gathering type discharging port to divide the internal space of the heating chamber into a to-be-released space close to the material-gathering type discharging port and a main heating space with a heating component; in the later stage of feeding, the barrier pallet cancels the blocking work, so that the space in the heating chamber is unified.

[0007] According to the solder drying machine for steel welding of the present invention, the air-flow feeding component includes an air supply device and an air pipeline connected to its output end; the air pipeline extends into the storage bin and is further connected to the chamber wall of the heating chamber; a feeding port is opened on the local air pipeline located in the storage bin.

[0008] For the solder dryer for steel welding according to the present invention, a material recovery device is installed at the exhaust port, which has an upward air port and a downward material return port; the lower part of the material return port corresponds to the feed port of the storage bin.

[0009] For the solder dryer for steel welding according to the present invention, there is a height difference H between the air inlet and the exhaust port of the heating chamber, and the center distance between the two is greater than the sum of their diameters.

[0010] For the solder dryer for steel welding according to the present invention, a blocking member for reducing the discharge of materials carried by the air flow from the exhaust port is further provided in the heating chamber; the blocking member is arranged at a position between the air inlet and the exhaust port; the blocking member is of a flat plate structure, and a plurality of air holes for the air flow to pass through are distributed on its plate surface.

[0011] For the solder dryer for steel welding according to the present invention, the blocking support plate is a concave structure with a concave surface facing the material-gathering type discharge port.

[0012] For the solder dryer for steel welding according to the present invention, the blocking support plate is connected to a lifting rod that moves along the direction in which the material-gathering type discharge port faces; the moving lifting rod further drives the blocking support plate to switch states.

[0013] For the solder dryer for steel welding according to the present invention, a positioning structure for positioning the moving position of the lifting rod is provided on the wall of the heating chamber; when the blocking support plate is in the blocking state, the positioning structure locks the position of the lifting rod; when the blocking support plate switches states, the positioning structure cancels the positioning work, and the lifting rod moves and resets under the action of an elastic member.

[0014] For the solder dryer for steel welding according to the present invention, the elastic member is of a planar spiral structure, the inner ring end of which is connected to the blocking support plate, and the outer ring is connected to the wall of the heating chamber; in the early stage of feeding, the blocking support plate will stretch the elastic member into a conical spiral structure; in the later stage of feeding, the elastic member resets to the planar spiral structure.

[0015] The present invention provides a solder dryer for steel welding, which includes a storage bin and a heating bin arranged on a frame, an air flow feeding assembly for driving materials from the storage bin into the heating bin, and a heating assembly arranged in the heating bin for heating the inside of the bin. The heating assembly uses heating rollers, and of course, other types of heating structures can also be used, such as heating electrodes and heating coils. During operation, the materials (solders) to be dried are poured into the storage bin, and the air flow generated by the air flow feeding assembly will carry the solders into the heating bin. The heating assembly in the heating bin generates heat output to achieve the drying work. During the drying process, since the materials are quantitatively transported from scratch to the heating bin, and at the same time, the heat generated by the heating assembly will cooperate with the air flow generated by the air flow feeding assembly, making the contact between the materials and the heat in the heating bin more comprehensive, and at the same time accelerating the discharge of moisture (water vapor or other volatile gases), thereby improving the drying efficiency. The present invention realizes the air flow feeding work, and the heat cooperates with the air flow to improve the drying efficiency of the materials. At the same time, the barrier tray switches its state according to the feeding amount to change the spatial layout in the heating bin, further improving the uniformity and drying efficiency of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a working schematic diagram of the air flow feeding assembly of the present invention; Figure 3 is a position diagram of the air inlet and the exhaust port of the present invention; Figure 4 is a setting diagram of the elastic member and the barrier tray; Figure 5 is a working schematic diagram of the barrier tray; In the figure, 1 - storage bin, 2 - heating bin, 21 - air supply device, 22 - air pipeline, 3 - poly - material discharge port, 30 - material recovery device, 31 - air port, 32 - return material port, 4 - barrier tray, 5 - main heating space, 6 - space to be released, 61 - lifting rod, 62 - elastic member, 71 - positioning card slot, 72 - locking latch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] Refer to Figure 1 and Figure 2, the present invention provides a solder dryer for steel welding. The solder dryer for steel welding includes a storage bin 1 and a heating bin 2 arranged on a frame, an air supply component for driving materials to enter the heating bin 2 from the storage bin 1, and a heating component arranged in the heating bin 2 for heating the inside of the bin. In this embodiment, the heating component uses heating rollers. Of course, other types of heating structures can also be used, such as heating pole pieces, heating coils, etc.

[0019] During operation, the material to be dried (solder) is poured into the storage bin 1. The air supply component generates air flow that will carry the solder to the heating bin 2. The heating component in the heating bin 2 generates heat output to achieve the drying work. During the drying process, since the material is quantitatively transported from scratch to the heating bin 2, and at the same time the heating component generates heat and cooperates with the air flow generated by the air supply component, the material contacts the heat in the heating bin 2 more comprehensively, and at the same time accelerates the discharge of moisture (water vapor or other volatile gases), thereby improving the drying efficiency.

[0020] The air supply component includes an air supply device 21 (a blower is sufficient) and an air duct 22 connected to its output end; the air duct 22 extends into the storage bin 1 and is further connected to the wall of the heating bin 2; a feed port is opened on the local air duct 22 located in the storage bin 1. During operation, the air supply device 21 generates air flow and transports it along the air duct 22. When it reaches the position of the storage bin 1, the air flow will absorb the material (due to the Bernoulli principle) and carry it, and finally enter the heating bin 2.

[0021] A material-gathering type discharge port 3 is arranged below the heating bin 2. The peripheral side wall of the material-gathering type discharge port 3 is in a conical structure centered on it. This structure has a good material-gathering effect during discharging. An activity blocking component is arranged at its opening. The activity blocking component blocks the material-gathering type discharge port 3 during the feeding and drying operations of the equipment; when entering the discharging operation, the blocking state is cancelled (the material-gathering type discharge port 3 is opened). The activity blocking component can be a pull-out baffle inserted on the heating bin 2.

[0022] An exhaust port is opened on the wall of the heating bin 2, and the air flow stored in the heating bin 2 is discharged therefrom.

[0023] Since it is considered that during the feeding process, the material that enters the heating bin 2 first will be placed at the bottom of the bin (at the position of the material-gathering type discharge port 3) first, so it will be far from the heating component and placed in a narrow space, resulting in slow heat transfer and uneven drying. In view of this, a blocking support plate 4 is movably arranged in the heating bin 2 of the present application, and it is connected to a driving component; In the early stage of feeding, the periphery of the barrier pallet 4 is in contact with the side wall close to the material-gathering discharge port 3, so as to divide the internal space of the heating chamber 2 into a to-be-released space 6 close to the material-gathering discharge port 3 and a main heating space 5 with a heating component ( Figure 5 as shown in the figure). That is to say, in the early stage of feeding, the material will not enter the to-be-released space 6, but only exists in the main heating space 5 with a larger cross-sectional area, close to the heating component to increase the heating efficiency.

[0024] In the late stage of feeding, to ensure the space utilization of the heating chamber 2, the barrier function of the barrier pallet 4 is cancelled, so that the space in the heating chamber 2 is unified, and the dried material re-enters the to-be-released space 6.

[0025] Specifically, the barrier pallet 4 is connected to a lifting rod 61 that moves along the direction of the material-gathering discharge port 3; the moving lifting rod further drives the barrier pallet to switch states. A positioning structure for positioning the moving position of the lifting rod 61 is arranged on the wall of the heating chamber 2. The positioning structure includes a positioning card slot 71 arranged at a predetermined position of the lifting rod 61 and a locking latch 72 installed in the heating chamber 2. The locking latch 72 has a telescopic output end. In the positioning state, the output end of the locking latch 72 extends out and is stuck into the positioning card slot 71 of the lifting rod 61 to realize the position positioning of the lifting rod 61.

[0026] When the barrier pallet 4 is in the barrier state, the lifting rod 61 is in the lower position state, and the positioning structure locks the position of the lifting rod 61; when the barrier pallet 4 switches states, the positioning structure cancels the positioning work, and the lifting rod 61 moves and resets under the action of an elastic member 62 (the lifting rod 61 resets to the upper position state).

[0027] In order to ensure the barrier effect of the barrier pallet 4 and avoid carrying materials during its rising process in this application, the barrier pallet 4 is a concave structure with the concave surface facing the material-gathering discharge port 3. During the rising process of the barrier pallet 4, the materials will fall due to the poor supporting effect of the concave structure.

[0028] Preferably, in order to avoid the secondary carrying of materials by the discharged air flow (carrying out the materials that should originally be stored in the heating chamber 2), a material recovery device 30 is installed at the exhaust port. It has an upward air port 31 and a downward material return port 32; when the air flow enters the material recovery device 30, the lighter air flow will be discharged upward from the air port 31, while the heavier materials will be discharged downward from the material return port 32. The lower part of the material return port 32 corresponds to the feed port of the storage bin 1, and the materials discharged downward fall into the storage bin 1 and are carried in again.

[0029] In addition, in order to further prevent the secondary carrying of materials, a blocking member for reducing the carrying of materials by the airflow and discharging them from the exhaust port is further provided in the heating chamber 2; the blocking member is arranged at a position between the air inlet and the exhaust port (there is a height difference H between the air inlet and the exhaust port of the heating chamber 2, and the center distance between the two is greater than the sum of their diameters, Figure 3 as shown); the blocking member is of a flat plate structure, and a plurality of air holes for the airflow to pass through are distributed on its plate surface.

[0030] In the first embodiment, the blocking member can be a mesh filter structure. It should be noted that the shape of the air holes can be adjusted adaptively.

[0031] See Figure 4 , in this embodiment, the elastic member 62 is of a planar spiral structure, the inner ring end of which is connected to the blocking tray 4, and the outer ring is connected to the wall of the heating chamber 2; in addition to driving the lifting rod 61 to reset, the elastic member 62 of this structure also has the following functions. In the early stage of feeding, the blocking tray 4 will stretch the elastic member 62 into a conical spiral structure. In this state, the elastic member 62 can play a role in blocking materials (reducing the flow rate of materials) during the feeding process, and to a certain extent increase the contact time between the materials and the airflow. At the same time, the elastic member 62 is arranged around the heating roller and can be used as a heat conducting member to assist the downward transfer of heat and optimize the drying effect.

[0032] In the later stage of feeding, the elastic member 62 resets to the planar spiral structure. In this state, the elastic member 62 also serves as a blocking member to prevent the secondary carrying of materials by the airflow.

[0033] Preferably, in order to prevent the lifting rod 61 from rising too fast, a damper for restricting the rising speed of the lifting rod 61 is provided on the heating chamber 2. The damper can be a damping gasket (rubber gasket) or a damping roller or other damping structures.

[0034] Certainly, the present invention can also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present invention.

Claims

1. A solder dryer for steel welding, characterized in that, It includes a storage bin and a heating bin arranged on a frame, an air flow feeding component for driving materials to enter the heating bin from the storage bin, and a heating component arranged in the heating bin for heating the inside of the bin; A material gathering type discharge port is arranged below the heating bin, and a movable plugging component is arranged at its opening; an exhaust port is formed in the bin wall of the heating bin; A barrier tray is movably arranged in the heating bin, and it is connected to a driving component; In the early stage of feeding, the periphery of the barrier tray contacts the side wall close to the material gathering type discharge port to divide the internal space of the heating bin into a to-be-released space close to the material gathering type discharge port and a main heating space with a heating component; In the later stage of feeding, the barrier work of the barrier tray is cancelled, so that the space in the heating bin is unified.

2. The solder dryer for steel welding according to claim 1, characterized in that, The air flow feeding component includes an air supply device and an air pipeline connected to its output end; The air pipeline extends into the storage bin and is further connected to the bin wall of the heating bin; A feed port is formed on the partial air pipeline located in the storage bin.

3. The solder dryer for steel welding according to claim 1, characterized in that A material recovery device is installed at the exhaust port, which has an upward air port and a downward material return port; The lower part of the material return port corresponds to the feed port of the storage bin.

4. The solder dryer for steel welding according to claim 1, characterized in that, There is a height difference H between the air inlet and the exhaust port arranged on the heating bin, and the center distance between the two is greater than the sum of their diameters.

5. The solder dryer for steel welding according to claim 4, characterized in that, A blocking piece for reducing the discharge of materials carried by the air flow from the exhaust port is further arranged in the heating bin; the blocking piece is arranged at the position between the air inlet and the exhaust port; The blocking piece is of a flat plate structure, and a plurality of air holes for the air flow to pass through are distributed on its plate surface.

6. The solder dryer for steel welding according to claim 1, characterized in that, The barrier tray is of a concave structure with the concave surface facing the material gathering type discharge port.

7. The solder dryer for steel welding according to claim 1 or 6, characterized in that, The barrier tray is connected to a lifting rod that moves in the direction towards which the material gathering type discharge port faces; the moving lifting rod further drives the barrier tray to switch states.

8. The solder dryer for steel welding according to claim 7, characterized in that A positioning structure for positioning the moving position of the lifting rod is arranged on the bin wall of the heating bin; When the barrier tray is in the blocking state, the positioning structure locks the position of the lifting rod; When the barrier tray switches states, the positioning structure cancels the positioning work, and the lifting rod moves and resets under the action of an elastic member.

9. The solder dryer for steel welding according to claim 8, characterized in that, The elastic member is of a planar spiral structure, the inner ring end of which is connected to the barrier tray, and the outer ring is connected to the bin wall of the heating bin; In the early stage of feeding, the elastic member will be stretched into a conical spiral structure by the barrier tray; In the later stage of feeding, the elastic member resets to the planar spiral structure.

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