Lead liquid flow control device of lead pig casting machine

Abstract

The utility model discloses a lead liquid flow control device of a lead pig casting machine, which comprises a machine frame, a conveying belt is arranged in the machine frame, a lead casting mould is fixed above the conveying belt, a support is fixed on the top of the machine frame through screws, a liquid inlet pipe is arranged above the lead casting mould, and a liquid outlet pipe is arranged above the liquid inlet pipe. A lead liquid temporary storage structure of the liquid inlet pipe is mounted in the bracket; according to the lead liquid temporary storage structure, when a lead casting mold is about to be filled with the lead liquid, the round valve clack rotates, the cross section area of the liquid inlet pipe is reduced, the flow is reduced, the flow of the lead liquid supplied to the liquid inlet pipe is not changed, and at the moment, the lead liquid which cannot flow out in time can enter a storage tank; and when the lead casting mold is filled with liquid and the next lead casting mold needs to be filled with the liquid, the lead casting mold can be quickly filled with the liquid in the front period of liquid injection, and the problem that the whole liquid injection process is slowed down due to slow liquid injection when the lead casting mold is to be filled with the liquid is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lead ingot production equipment, in particular to a lead liquid flow control device for a lead ingot casting machine. Background Art

[0002] Lead ingot casting is a method for preparing lead ingots, which is widely used in the lead metallurgical industry. The lead ingot casting process is to melt the lead and pour it into a lead casting mold, and then obtain the lead ingot through the solidification and cooling process. The low melting point and high density of lead are used to convert the lead liquid into solid lead ingots.

[0003] Lead liquid is obtained by placing the selected lead block into a smelting furnace, heating it to above the melting point of lead, and completely melting it. When the lead liquid is transferred to the lead mold, since the lead molds are arranged at equal distances and transported at a uniform speed by a conveyor belt, when the previous lead mold is about to be filled, the liquid flow rate needs to be reduced, and when the next lead mold moves to the filling port, the lead liquid outlet needs to be closed.

[0004] Chinese patent CN218310750U discloses a lead liquid flow control device for a lead ingot casting machine, which includes a hopper fixed on a platform, a discharge pipe connected to the lower end of the hopper, the discharge pipe is connected to the feed port of a wheel-type continuous casting machine, and a discharge flow control device for controlling the opening of the upper port of the discharge pipe is provided on the hopper, an inlet pipe is provided above the hopper on the left side of the discharge pipe, the inlet pipe is connected to a lead furnace, a vertical portion bent downward at 90 degrees is provided on the inlet pipe, the vertical portion extends into the hopper, and a feed flow control device for controlling the opening of the inlet pipe discharge port is provided on the vertical portion.

[0005] The device controls the flow rate of molten lead into the pipe by setting the cross-sectional size of the liquid outlet. Although it can prevent the molten lead from overflowing, this method slows down the injection speed of the molten lead and affects the production efficiency of lead ingots. Utility Model Content

[0006] The purpose of the utility model is to provide a lead liquid flow control device for a lead ingot casting machine, so as to solve the problem that the lead liquid flow control device in the prior art mentioned in the background technology is slow in filling each lead casting mold with lead liquid, thus affecting the production efficiency of the lead ingot casting.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lead liquid flow control device for a lead ingot casting machine, comprising a frame, a conveyor belt is installed in the frame, a lead casting mold is fixed above the conveyor belt, a bracket is fixed to the top of the frame by screws, a liquid inlet pipe is arranged above the lead casting mold, and a lead liquid temporary storage structure of the liquid inlet pipe is installed in the bracket;

[0008] The lead liquid temporary storage structure includes a storage tank, the top of the storage tank is connected to a connecting pipe, the bottom of the storage tank is connected to a liquid outlet pipe, an interception structure for controlling the liquid outlet of the storage tank is arranged inside the storage tank, and a flow control structure is arranged on one side of the liquid inlet pipe.

[0009] Preferably, the intercepting structure comprises a stopper, a connecting rod is fixed to the top of the stopper, one end of the connecting rod passes through the bracket and is slidably connected to the bracket, and the connecting rod is arranged in an inverted U shape.

[0010] Preferably, the intercepting structure also includes a hydraulic cylinder, which is fixed to the upper surface of the bracket by screws, and the telescopic end of the hydraulic cylinder passes through the bracket and is fixed with a connecting plate, and one end of the connecting plate is fixedly connected to one end of the connecting rod.

[0011] Preferably, the flow control structure comprises a rotary motor, the output end of the rotary motor is fixed with a valve stem via a rotating shaft, and the outer wall of the valve stem is fixed with a circular valve disc.

[0012] Preferably, the flow control structure further comprises a fixing block, the fixing block is welded to the outer wall of the liquid inlet pipe, and the rotary motor is fixed to one side of the fixing block by screws.

[0013] Preferably, the cross section of the stopper is in the shape of an inverted trapezoid, and the stopper is located at the connection between the storage tank and the liquid outlet pipe.

[0014] Preferably, there are a plurality of lead casting molds, and the plurality of lead casting molds are arranged in a linear manner.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a temporary lead storage structure. When the lead mold is about to be filled, the circular valve disc rotates to reduce the cross-sectional area of ​​the liquid inlet pipe, thereby reducing the flow rate. The flow rate of the lead liquid in the liquid inlet pipe remains unchanged. At this time, the lead liquid that cannot flow out in time can enter the storage tank. When the lead mold is full and needs to be filled with the next lead mold, the lead liquid in the storage tank opens the interception structure, so that the lead liquid enters the lead mold at one time. At the same time, the lead liquid in the liquid inlet pipe flows in at a normal flow rate. In this way, the lead mold can be quickly filled with liquid in the early period of time of filling, thereby avoiding the problem of slow filling when the lead mold is about to be filled, which causes the entire filling process to slow down. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axonometric drawing of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the flow control structure of the utility model;

[0019] Figure 3It is a schematic diagram of the position of the hydraulic cylinder of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the interception structure of the utility model.

[0021] In the figure: 1. frame; 2. conveyor belt; 3. lead casting mold; 4. bracket; 5. liquid inlet pipe; 6. storage tank; 7. connecting pipe; 8. liquid outlet pipe; 9. interception structure; 10. flow control structure; 901. block; 902. connecting rod; 903. hydraulic cylinder; 904. connecting plate; 1001. rotating motor; 1002. valve stem; 1003. circular valve disc; 1004. fixing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a lead liquid flow control device for a lead ingot casting machine, comprising a frame 1, a conveyor belt 2 is installed in the frame 1, a lead casting mold 3 is fixed above the conveyor belt 2, a bracket 4 is fixed to the top of the frame 1 by screws, a liquid inlet pipe 5 is arranged above the lead casting mold 3, and a lead liquid temporary storage structure of the liquid inlet pipe 5 is installed in the bracket 4; by setting the lead liquid temporary storage structure, after the flow is reduced, the lead liquid that cannot flow out in time enters the storage tank 6 for temporary storage.

[0024] The lead liquid temporary storage structure includes a storage tank 6, the top of the storage tank 6 is connected to a connecting pipe 7, the bottom of the storage tank 6 is connected to a liquid outlet pipe 8, an intercepting structure 9 for controlling the liquid outlet of the storage tank 6 is arranged inside the storage tank 6, and a flow control structure 10 is arranged on one side of the liquid inlet pipe 5.

[0025] The interception structure 9 includes a block 901, a connecting rod 902 is fixed on the top of the block 901, one end of the connecting rod 902 penetrates the bracket 4 and is slidably connected to the bracket 4, and the connecting rod 902 is set in an inverted U shape. When the telescopic end of the control hydraulic cylinder 903 is shortened, the block 901 is pulled by the connecting rod 902 to move upward, so that a gap is left between the block 901 and the inner wall of the storage tank 6, so that the lead liquid flows out of the liquid outlet of the liquid inlet pipe 5 through the gap. This method allows the lead liquid to flow out of the storage tank without affecting the outflow speed of the liquid inlet pipe 5. When the empty lead casting mold 3 moves to the lower end of the liquid inlet pipe 5, a large amount of lead liquid can be injected instantly to make up for the problem of slow production efficiency caused by the small flow rate in the subsequent sequence taking a long time.

[0026] The interception structure 9 also includes a hydraulic cylinder 903 , which is fixed to the upper surface of the bracket 4 by screws. The telescopic end of the hydraulic cylinder 903 passes through the bracket 4 and is fixed with a connecting plate 904 , and one end of the connecting plate 904 is fixedly connected to one end of the connecting rod 902 .

[0027] The flow control structure 10 includes a rotary motor 1001 , a valve stem 1002 is fixed to the output end of the rotary motor 1001 via a rotating shaft, and a circular valve flap 1003 is fixed to the outer wall of the valve stem 1002 .

[0028] The flow control structure 10 further includes a fixing block 1004, which is welded to the outer wall of the liquid inlet pipe 5, and the rotary motor 1001 is fixed to one side of the fixing block 1004 by screws. After the rotary motor 1001 is driven, the valve stem 1002 rotates, driving the circular valve flap 1003 to rotate, and when the circular valve flap 1003 is horizontally located in the liquid inlet pipe 5, the lead liquid in the liquid inlet pipe 5 is cut off.

[0029] The cross section of the stopper 901 is in an inverted trapezoidal shape, and the stopper 901 is located at the connection between the storage tank 6 and the liquid outlet pipe 8 .

[0030] The lead casting molds 3 are provided with a plurality of them, and the plurality of lead casting molds 3 are arranged in a linear manner. The lead casting molds 3 pass through the conveyor belt 2 and sequentially pass under the liquid inlet pipe 5 to perform the liquid injection process.

[0031] When in use, the lead liquid supply device supplies lead liquid into the liquid inlet pipe 5, and the lead liquid enters from the liquid inlet pipe 5, flows out through the bottom of the liquid inlet pipe 5, and flows into the lead casting mold 3 below, until the lead casting mold 3 is filled, and the next lead casting mold 3 is moved to the bottom of the liquid inlet pipe 5 by the drive of the conveyor belt 2 to repeat the filling process; when the lead casting mold 3 is about to be filled, the valve stem 1002 is rotated by starting the rotary motor 1001, driving the circular valve flap 1003 to rotate, reducing the cross-sectional area of ​​the liquid inlet pipe 5, and realizing flow reduction, when the circular valve flap 1003 is horizontally located in the liquid inlet pipe 5, the lead liquid in the liquid inlet pipe 5 is cut off, and at this time the lead casting mold 3 is filled;

[0032] When the flow rate decreases, the lead liquid that cannot completely flow out of the liquid inlet pipe 5 due to the smaller cross-section of the liquid inlet pipe 5 enters the storage tank 6 through the fork for temporary storage; when the next lead casting mold 3 needs to be injected, the telescopic end of the hydraulic cylinder 903 is controlled to shorten, and the block 901 is pulled by the connecting rod 902 to move upward, so that a gap is left between the block 901 and the inner wall of the storage tank 6, so that the lead liquid can flow out of the liquid outlet of the liquid inlet pipe 5 through the gap.

[0033] This method allows the lead liquid to flow out of the storage tank without affecting the outflow speed of the liquid inlet pipe 5. When the empty lead casting mold 3 moves to the lower end of the liquid inlet pipe 5, a large amount of lead liquid can be injected instantly to make up for the problem of slow production efficiency caused by the subsequent small flow rate taking a long time.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lead liquid flow control device for a lead ingot casting machine, characterized in that: The invention comprises a frame (1), a conveyor belt (2) is installed in the frame (1), a lead casting mold (3) is fixed above the conveyor belt (2), a bracket (4) is fixed to the top of the frame (1) by screws, a liquid inlet pipe (5) is arranged above the lead casting mold (3), and a lead liquid temporary storage structure of the liquid inlet pipe (5) is installed in the bracket (4); The lead liquid temporary storage structure comprises a storage tank (6), the top of the storage tank (6) is connected to a connecting pipe (7), the bottom of the storage tank (6) is connected to a liquid outlet pipe (8), an interception structure (9) for controlling the liquid outlet of the storage tank (6) is arranged in the storage tank (6), and a flow control structure (10) is arranged on one side of the liquid inlet pipe (5).

2. The lead liquid flow control device for a lead ingot casting machine according to claim 1, characterized in that: The intercepting structure (9) comprises a stopper (901), a connecting rod (902) being fixed to the top of the stopper (901), one end of the connecting rod (902) passing through the bracket (4) and being slidably connected to the bracket (4), and the connecting rod (902) being arranged in an inverted U shape.

3. The lead liquid flow control device for a lead ingot casting machine according to claim 2, characterized in that: The intercepting structure (9) further comprises a hydraulic cylinder (903), wherein the hydraulic cylinder (903) is fixed to the upper surface of the bracket (4) by means of screws, wherein the telescopic end of the hydraulic cylinder (903) passes through the bracket (4) and is fixed with a connecting plate (904), wherein one end of the connecting plate (904) is fixedly connected to one end of the connecting rod (902).

4. The lead liquid flow control device for a lead ingot casting machine according to claim 3, characterized in that: The flow control structure (10) comprises a rotary motor (1001), the output end of the rotary motor (1001) is fixed with a valve stem (1002) via a rotating shaft, and the outer wall of the valve stem (1002) is fixed with a circular valve flap (1003).

5. The lead liquid flow control device for a lead ingot casting machine according to claim 4, characterized in that: The flow control structure (10) further comprises a fixing block (1004), wherein the fixing block (1004) is welded to the outer wall of the liquid inlet pipe (5), and the rotary motor (1001) is fixed to one side of the fixing block (1004) by means of screws.

6. The lead liquid flow control device for a lead ingot casting machine according to claim 5, characterized in that: The cross section of the stopper (901) is arranged in an inverted trapezoidal shape, and the stopper (901) is located at the connection between the storage tank (6) and the liquid outlet pipe (8).

7. The lead liquid flow control device for a lead ingot casting machine according to claim 1, characterized in that: A plurality of the lead casting molds (3) are provided, and the plurality of the lead casting molds (3) are arranged in a linear manner.

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