A small lead furnace

Abstract

The invention discloses a small lead furnace, comprising a lead furnace body connected to a lead melting furnace through a lead delivery pipeline, the lead furnace body mainly comprising a furnace body and a switch device arranged in the furnace body, a cover plate is arranged on the top furnace wall of the furnace body, a lead delivery port is arranged on the cover plate, a guide plate is arranged at the bottom of the furnace body, a plurality of lead discharge holes for flowing out lead liquid are evenly arranged on the guide plate, and a guide plate is detachably arranged at the bottom of the guide plate; the switch device mainly comprises a switch ejector pin, a lifting plate and a cylinder, the bottom of the switch ejector pin can be in close contact with the lead discharge hole to control the opening and closing of the lead discharge hole, the lifting plate is arranged on the top of the cover plate and is fixedly connected to the switch ejector pin through a through hole penetrated on the cover plate, the cylinder is connected to the lifting plate through a piston rod and drives the switch ejector pin to move up and down by driving the lifting plate to move up and down, and a liquid level control mechanism which can control the height of the lead liquid in the furnace body is arranged in the furnace body.

Description

Technical Field

[0001] The invention belongs to the technical field of battery manufacturing, and in particular relates to a small lead furnace. Background Art

[0002] Lead-acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. With the development of science and technology and the popularization and use of household electrical appliances, lead-acid batteries are increasingly widely used in the market. The manufacturing process of lead-acid batteries involves the melting of lead and lead alloys. The lead melting furnaces or lead melting boilers currently used have poor temperature uniformity, incomplete combustion, backward control methods, high energy consumption, low thermal efficiency, and short service life of the lead melting pot. Moreover, they are all open-top designs and heated by electric heating tubes. Lead and lead alloys react with oxygen in the air under high temperature to form lead slag and lead smoke, resulting in production waste and environmental pollution.

[0003] In addition, existing lead melting furnaces are all of an integrated design, that is, a feed port and a discharge port are provided on the same lead melting furnace at the same time, and the molten lead in the discharge port is directly poured. This pouring method easily causes defects such as uneven melting of the molten lead and poor quality of the cast products. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a small lead furnace with simple structure, high production efficiency and uniform lead output in view of the above-mentioned defects of the prior art.

[0005] The objective of the present invention is achieved through the following technical scheme: a small lead furnace, comprising a lead furnace body connected to a lead melting furnace through a lead delivery pipe, the lead furnace body mainly comprising a furnace body and a switch device arranged in the furnace body, a cover plate is arranged on the top furnace wall of the furnace body, a lead delivery port for connecting to the lead delivery pipe of the lead melting furnace is provided on the cover plate, a guide plate is arranged at the bottom of the furnace body, a plurality of lead discharge holes for flowing out the lead liquid are evenly provided on the guide plate, a guide plate is detachably provided at the bottom of the guide plate, the guide plate is provided with guide holes corresponding to the number and position of the lead discharge holes on the guide plate; the switch device mainly comprises a switch ejector pin, a lifting plate and a cylinder, the bottom of the switch ejector pin can be in close contact with the lead discharge hole to control the opening and closing of the lead discharge hole, the lifting plate is arranged on the top of the cover plate and is connected through The through hole penetrated on the cover plate is fixedly connected with the switch ejector pin, the cylinder is connected with the lifting plate through a piston rod and drives the switch ejector pin to move up and down by driving the lifting plate to move up and down; the cylinder includes a group of first cylinders symmetrically arranged on the cylinder bracket and two groups of second cylinders respectively arranged on the front and rear sides of the first cylinder, the lifting plate includes a first lifting plate connected with the piston rod of the first cylinder and a second lifting plate respectively arranged on the front and rear sides of the first lifting plate and connected with the piston rod of the second cylinder, at least four switch ejectors are arranged at the bottom of each first lifting plate to drive the switch ejector pin to move up and down, and at least two switch ejectors are arranged at the bottom of each second lifting plate to drive the switch ejector pin to move up and down; a liquid level control mechanism that can control the height of the lead liquid in the furnace body is arranged in the furnace body.

[0006] Furthermore, the cylinder support includes a top plate and a cylinder fixing plate fixedly arranged on the top plate, and the top plate is fixedly connected to the cover plate via an I-shaped support rod arranged on the cover plate; the first lifting plate and the second lifting plate are respectively provided with at least two groups of guide mechanisms connected to the top plate, and the guide mechanism includes a guide sleeve and a guide column arranged in the guide sleeve and capable of moving up and down relative to the guide sleeve, and the guide mechanism is along the length direction of the first lifting plate and the second lifting plate and is respectively arranged on both sides of the corresponding piston rod on the first lifting plate and the second lifting plate.

[0007] Furthermore, the lead discharge holes of the guide plate are integrally provided with plug valves corresponding to the number of the lead discharge holes, the plug valve is vertically provided with inner through holes connected to the lead discharge holes, the diameter of the inner through hole is the same as the diameter of the switch ejector pin, and the plug valve is provided with a groove running through the inner through hole parallel to the length direction of the guide plate.

[0008] Furthermore, a pin taper head is provided at the bottom of the switch pin, and the pin taper head includes an inverted trapezoidal transition head and a cylindrical needle tip integrally provided at the bottom of the transition head. The lower side of the lead discharge hole matches the shape and size of the pin taper head, and when the piston rod of the cylinder moves to the maximum position, the cylindrical needle tip on the pin taper head can partially extend out of the bottom of the lead discharge hole.

[0009] Furthermore, a truncated cone-shaped connecting column is provided at the top of the switch ejector pin, and mounting countersunk holes matching the shape and size of the truncated cone-shaped connecting column of the switch ejector pin are respectively provided in the first lifting plate and the second lifting plate. The switch ejector pin is clamped in the mounting countersunk hole of the corresponding lifting plate through the truncated cone-shaped connecting column at the top, and a compression spring contact-connected with the truncated cone-shaped connecting column is provided in the mounting countersunk hole.

[0010] Furthermore, a heat insulation layer is coated on the outer wall of the furnace body, and a high-frequency heating coil is arranged on the outer surface of the heat insulation layer.

[0011] Furthermore, the piston rods of the first cylinder and the second cylinder are respectively connected to the first lifting plate and the second lifting plate through lifting connection blocks. The lifting connection block includes a lifting plate and a lifting column arranged at the bottom of the lifting plate. The lifting column is sleeved with a spring supported on the lifting plate.

[0012] Furthermore, the liquid level control mechanism includes a liquid level sensing float arranged in the furnace body and a mechanical valve arranged on the cylinder fixing plate and connected to the liquid level sensing float.

[0013] Furthermore, the guide holes on the guide plate include a lead liquid guide groove arranged on the top of the guide plate and a discharge hole opened at the bottom of the guide plate corresponding to the position of the lead liquid guide groove. The lead liquid guide groove is provided with a diversion mechanism that can divert the incoming lead liquid so that the lead liquid can flow out of the discharge hole evenly. The discharge hole is connected with the lead liquid guide groove through the diversion mechanism. After the lead liquid flows into the lead liquid guide groove, it flows to the corresponding discharge hole through the diversion mechanism, and then is discharged from the discharge hole to the molding groove of the mold.

[0014] Furthermore, the shape of the lead liquid guide groove is a long strip, and the upper surface of the lead liquid guide groove is provided with an inwardly recessed circular groove for facilitating the injection of the lead liquid, and the diversion mechanism is a triangular diversion plate arranged in the lead liquid guide groove opposite the center of the circular groove, and the number of the discharge holes is twice the number of the lead liquid guide grooves and is respectively arranged on both sides of the bottom of the triangular diversion plate.

[0015] The beneficial technical effect of the present invention is that: the present invention divides the traditional lead melting furnace into a large lead melting furnace and a small lead furnace used in conjunction with the large lead furnace, the completely dissolved lead liquid in the large lead furnace flows into the small lead furnace through a lead delivery pipeline, the small lead furnace is provided with a liquid level control mechanism to realize the lead addition operation of the lead furnace and maintain the liquid level in the small lead furnace, the present invention controls the lead output of the lead discharge hole at the bottom of the small lead furnace by sequentially connecting a cylinder, a lifting plate and a switch ejector pin, and realizes a single cylinder controlling multiple switch ejectors in a manner that the cylinder drives the lifting plate and the lifting plate drives multiple switch ejectors In addition, multiple cylinders are set up to drive different lifting plates to control the movement of switch ejectors in different positions, so as to realize precise control of the lead output in lead discharge holes in different positions, which is beneficial to the casting of products containing multiple mold holes on the same mold, and greatly improves the production capacity. In addition, a guide plate is arranged at the bottom of the guide plate, and the lead liquid coming out of the guide plate flows into the mold. The guide plate can divert the lead liquid, so that it is more evenly distributed in the mold, thereby improving the quality and service life of the lead-acid battery, and having a significant improvement in production capacity and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the switch device of the present invention;

[0018] Figure 3 It is a side view structural schematic diagram of the present invention;

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the switch device of the present invention;

[0020] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A;

[0021] Figure 6 for Figure 4 A schematic diagram of the enlarged structure at B;

[0022] Figure 7 It is a structural schematic diagram of the diverter plate described in the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by the terms such as "up", "down", "left", "right", "inside", "outside", "horizontal" and "vertical" is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or original referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figure 1-7As shown, a small lead furnace described in the present invention comprises a lead furnace body connected to a lead melting furnace through a lead delivery pipe, the lead furnace body mainly comprises a furnace body 1 and a switch device 2 arranged in the furnace body 1, the outer wall of the furnace body 1 is covered with a heat insulation layer 23, and the outer surface of the heat insulation layer 23 is provided with a high-frequency heating coil 37, and the heat insulation layer 23 and the high-frequency heating coil 37 can ensure that the temperature of the lead liquid in the small lead furnace is maintained within the processing requirement range; a cover plate 3 is arranged on the top furnace wall of the furnace body 1, and a lead delivery port 4 for connecting to the lead delivery pipe of the lead melting furnace is opened on the cover plate 3, and a handle for facilitating opening a part of the cover plate 3 to check the lead liquid in the furnace body is arranged on one side of the lead delivery port 4, and the furnace body 1 A guide plate 5 is provided at the bottom, and a plurality of lead discharge holes 6 for the lead liquid to flow out are evenly provided on the guide plate 5. A guide plate 7 is detachably provided at the bottom of the guide plate 5, and the guide plate 7 is provided with guide holes corresponding to the number and position of the lead discharge holes 6 on the guide plate 5; the switch device 2 mainly includes a switch ejector pin 9, a lifting plate and a cylinder, the bottom of the switch ejector pin 9 can be in close contact with the lead discharge hole 6 to control the opening and closing of the lead discharge hole 6, the lifting plate is arranged on the top of the cover plate 3 and is fixedly connected with the switch ejector pin 6 through a through hole penetrated on the cover plate 3, the cylinder is connected with the lifting plate through a piston rod, and drives the switch ejector pin 9 to move up and down by driving the lifting plate to move up and down The cylinder comprises a group of first cylinders 10 symmetrically arranged on the cylinder bracket and two groups of second cylinders 11 respectively arranged on the front and rear sides of the first cylinder 10, the lifting plate comprises a first lifting plate 12 connected to the piston rod of the first cylinder 10 and second lifting plates 13 respectively arranged on the front and rear sides of the first lifting plate 12 and respectively connected to the piston rod of the second cylinder 11, at least four switch ejector pins 9 are arranged at the bottom of each first lifting plate 12 and drive the switch ejector pins 9 to move up and down, and the specific number of switch ejector pins can be adjusted according to the number of forming holes of the mold. In this embodiment, ten switch ejector pins 9 are arranged at the bottom of the first lifting plate 12, and the bottom of each second lifting plate 13 At least two switch pins 9 are provided to drive the switch pins 9 to move up and down; a liquid level control mechanism is provided in the furnace body 1 to control the height of the lead liquid in the furnace body 1, and the liquid level control mechanism includes a liquid level sensing float 14 provided in the furnace body 1 and a mechanical valve 15 provided on the cylinder bracket and connected to the liquid level sensing float 14. The liquid level sensing float 14 rises and falls with the liquid level, and the mechanical valve 15 opens or closes accordingly. The mechanical valve 15 is electrically connected to the lead pump in the lead melting furnace. When the lead liquid level is low, the mechanical valve opens, and the lead pump in the lead melting furnace starts to pump lead. When the lead liquid level meets the requirements, the mechanical valve closes, and the lead pump in the lead melting furnace stops pumping lead, thereby realizing the lead addition or stop of the lead addition operation in the lead furnace.

[0026] Reference Figure 2-4As shown, the cylinder bracket includes a top plate 16 and a cylinder fixing plate 17 fixedly arranged on the top plate 16, and the top plate 16 is fixedly connected to the cover plate 3 through an I-shaped support rod 18 arranged on the cover plate 3; the first lifting plate 12 and the second lifting plate 13 are respectively provided with at least two groups of guide mechanisms connected to the top plate 16, and the guide mechanism includes a guide sleeve 19 and a guide column 20 arranged in the guide sleeve 19 and can move up and down relative to the guide sleeve 19, and the guide mechanism is along the length direction of the first lifting plate 12 and the second lifting plate 13 and is respectively arranged on both sides of the corresponding piston rod on the first lifting plate 12 and the second lifting plate 13.

[0027] Reference Figure 4-5 As shown, the lead discharge holes 6 of the guide plate 5 are integrally provided with plug valves 21 corresponding to the number of lead discharge holes 6, and the plug valve 21 is vertically provided with inner through holes 22 connected with the lead discharge holes 6, and the diameter of the inner through holes 22 is the same as the diameter of the switch ejector pin, and the plug valve 21 is provided with a groove 24 that runs through the inner through holes 22 parallel to the length direction of the guide plate 5. The bottom of the switch ejector pin 9 is provided with an ejector taper head, and the ejector taper head includes an inverted trapezoidal transition head 25 and a cylindrical needle tip 26 integrally provided at the bottom of the transition head 25, the lower side of the lead discharge hole 6 matches the shape and size of the ejector taper head, and when the piston rod of the cylinder moves to the maximum position, the cylindrical needle tip 26 on the ejector taper head can partially extend out of the bottom of the lead discharge hole 6.

[0028] Reference Figure 6 As shown, a truncated cone-shaped connecting column 27 is provided at the top of the switch ejector pin 9, and mounting countersunk holes 28 matching the shape and size of the truncated cone-shaped connecting column 27 of the switch ejector pin 9 are respectively provided in the first lifting plate 12 and the second lifting plate 13. The switch ejector pin 9 is clamped in the mounting countersunk hole 28 of the corresponding lifting plate through the truncated cone-shaped connecting column 27 at the top, and a compression spring 29 contact-connected with the truncated cone-shaped connecting column 27 is provided in the mounting countersunk hole 28.

[0029] Reference Figure 4 As shown, the piston rods of the first cylinder 10 and the second cylinder 11 are respectively connected to the first lifting plate 12 and the second lifting plate 13 through lifting connection blocks. The lifting connection block includes a lifting plate 30 and a lifting column 31 arranged at the bottom of the lifting plate 30. The lifting column 31 is sleeved with a spring 32 supported on the corresponding lifting plate.

[0030] Reference Figure 5-7The guide holes on the guide plate 7 include a lead liquid guide groove 33 arranged on the top of the guide plate 7 and a discharge hole 34 opened at the bottom of the guide plate 7 corresponding to the position of the lead liquid guide groove 33. The lead liquid guide groove 33 is provided with a diversion mechanism 35 that can divert the inflowing lead liquid so that the lead liquid can flow out of the discharge hole 34 evenly. The discharge hole 34 is connected with the lead liquid guide groove 33 through the diversion mechanism 35. After the lead liquid flows into the lead liquid guide groove 33, it flows to the corresponding discharge hole 34 through the diversion mechanism 35, and then flows out from the discharge hole 34 to the molding groove of the mold. The lead liquid guide groove 33 is in the shape of an elongated strip, and an inwardly recessed circular groove 36 is provided on the upper surface of the lead liquid guide groove 33 for facilitating the injection of lead liquid. The diversion mechanism 35 is a triangular diversion plate arranged in the lead liquid guide groove 33 opposite the center of the circular groove. The number of the discharge holes 34 is twice the number of the lead liquid guide grooves 33 and are respectively arranged on both sides of the bottom of the triangular diversion plate.

[0031] The present invention divides the traditional lead melting furnace into a large lead melting furnace and a small lead furnace used in conjunction with the large lead furnace. The completely dissolved lead liquid in the large lead furnace flows into the small lead furnace through a lead delivery pipeline. The small lead furnace is provided with a liquid level control mechanism to realize the lead adding operation of the lead furnace and maintain the liquid level in the small lead furnace. The present invention controls the lead output of the lead discharge hole at the bottom of the small lead furnace by sequentially connecting a cylinder, a lifting plate and a switch ejector pin. The cylinder drives the lifting plate, and the lifting plate drives the multiple switch ejector pins to realize a single cylinder controlling multiple switch ejector pins. In addition, By setting up multiple cylinders to drive different lifting plates to control the movement of switch ejectors at different positions, accurate control of the lead output in lead discharge holes at different positions can be achieved, which is beneficial to the casting of products containing multiple mold holes on the same mold, greatly improving the production capacity. In addition, a guide plate is provided at the bottom of the guide plate, and the lead liquid coming out of the guide plate flows into the mold. The guide plate can divert the lead liquid, so that it is more evenly distributed in the mold, thereby improving the quality and service life of the lead-acid battery, and having a significant improvement in both production capacity and product quality.

[0032] The specific embodiments described herein are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A small lead furnace, comprising a lead furnace body connected to a lead melting furnace through a lead delivery pipeline, characterized in that: The lead furnace body comprises a furnace body and a switch device arranged in the furnace body, a cover plate is arranged on the top furnace wall of the furnace body, a lead delivery port for connecting to the lead delivery pipeline of the lead melting furnace is arranged on the cover plate, a guide plate is arranged at the bottom of the furnace body, a plurality of lead discharge holes for flowing out the lead liquid are evenly arranged on the guide plate, a guide plate is detachably arranged at the bottom of the guide plate, and guide holes corresponding to the number and position of the lead discharge holes on the guide plate are arranged on the guide plate; the switch device comprises a switch ejector pin, a lifting plate and a cylinder, the bottom of the switch ejector pin is in close contact with the lead discharge hole to control the opening and closing of the lead discharge hole, the lifting plate is arranged on the top of the cover plate and is fixedly connected to the switch ejector pin through a through hole penetrated on the cover plate, and the cylinder is through a through hole penetrated on the cover plate. The cylinder is connected to the lifting plate through a piston rod and drives the lifting plate to move up and down to drive the switch ejector pin to move up and down; the cylinder includes a group of first cylinders symmetrically arranged on the cylinder bracket and two groups of second cylinders respectively arranged on the front and rear sides of the first cylinder; the lifting plate includes a first lifting plate connected to the piston rod of the first cylinder and a second lifting plate respectively arranged on the front and rear sides of the first lifting plate and connected to the piston rod of the second cylinder; at least four switch ejectors are arranged at the bottom of each first lifting plate to drive the switch ejector pin to move up and down; at least two switch ejectors are arranged at the bottom of each second lifting plate to drive the switch ejector pin to move up and down; a liquid level control mechanism for controlling the height of the lead liquid in the furnace body is arranged in the furnace body.

2. The small lead furnace according to claim 1, characterized in that: The cylinder bracket includes a top plate and a cylinder fixing plate fixedly arranged on the top plate, and the top plate is fixedly connected to the cover plate through an I-shaped support rod arranged on the cover plate; the first lifting plate and the second lifting plate are respectively provided with at least two groups of guide mechanisms connected to the top plate, and the guide mechanism includes a guide sleeve and a guide column arranged in the guide sleeve and moving up and down relative to the guide sleeve, and the guide mechanism is along the length direction of the first lifting plate and the second lifting plate and is respectively arranged on both sides of the corresponding piston rod of the first lifting plate and the second lifting plate.

3. The small lead furnace according to claim 1 or 2, characterized in that: The lead discharge holes of the guide plate are integrally provided with plug valves corresponding to the number of the lead discharge holes, and the plug valve is vertically provided with inner through holes connected to the lead discharge holes, the diameter of the inner through holes is the same as the diameter of the switch ejector pin, and the plug valve is provided with a groove running through the inner through holes parallel to the length direction of the guide plate.

4. The small lead furnace according to claim 3, characterized in that: A taper head is provided at the bottom of the switch ejector, and the taper head includes an inverted trapezoidal transition head and a cylindrical needle tip integrally provided at the bottom of the transition head. The lower side of the lead discharge hole matches the shape and size of the taper head of the ejector, and when the piston rod of the cylinder moves to the maximum position, the cylindrical needle tip portion on the taper head of the ejector extends out of the bottom of the lead discharge hole.

5. The small lead furnace according to claim 4, characterized in that: A truncated cone-shaped connecting column is provided at the top of the switch ejector pin, and mounting countersunk holes matching the shape and size of the truncated cone-shaped connecting column of the switch ejector pin are respectively provided in the first lifting plate and the second lifting plate. The switch ejector pin is clamped in the mounting countersunk hole of the corresponding lifting plate through the truncated cone-shaped connecting column at the top, and a compression spring contact-connected with the truncated cone-shaped connecting column is provided in the mounting countersunk hole.

6. The small lead furnace according to claim 5, characterized in that: The outer wall of the furnace body is covered with a heat insulation layer, and a high-frequency heating coil is arranged on the outer surface of the heat insulation layer.

7. The small lead furnace according to claim 5, characterized in that: The piston rods of the first cylinder and the second cylinder are respectively connected to the first lifting plate and the second lifting plate through lifting connection blocks. The lifting connection block includes a lifting plate and a lifting column arranged at the bottom of the lifting plate. The lifting column is sleeved with a spring supported on the lifting plate.

8. The small lead furnace according to claim 5, characterized in that: The liquid level control mechanism comprises a liquid level sensing float arranged in the furnace body and a mechanical valve arranged on the cylinder fixing plate and connected to the liquid level sensing float.

9. The small lead furnace according to any one of claims 4 to 8, characterized in that: The guide holes on the guide plate include a lead liquid guide groove arranged on the top of the guide plate and a discharge hole opened at the bottom of the guide plate corresponding to the position of the lead liquid guide groove. A diversion mechanism is arranged in the lead liquid guide groove to divert the incoming lead liquid so that the lead liquid can flow out of the discharge hole evenly. The discharge hole is connected with the lead liquid guide groove through the diversion mechanism. After the lead liquid flows into the lead liquid guide groove, it flows to the corresponding discharge hole through the diversion mechanism and is then discharged from the discharge hole to the molding groove of the mold.

10. The small lead furnace according to claim 9, characterized in that: The shape of the lead liquid guide groove is a long strip, and the upper surface of the lead liquid guide groove is provided with an inwardly recessed circular groove for facilitating the injection of lead liquid. The diversion mechanism is a triangular diversion plate arranged in the lead liquid guide groove opposite the center of the circular groove. The number of the discharge holes is twice the number of the lead liquid guide grooves and is respectively arranged on both sides of the bottom of the triangular diversion plate.

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