Tin bar production feeding device

Abstract

The utility model relates to the technical field of tin bar production, in particular to a tin bar production feeding device which comprises a fixing ring, a hopper and a filter screen, the hopper and the filter screen are arranged on the fixing ring, and the filter screen is located in the hopper. A mixing mechanism is arranged on the fixing ring; the mixing mechanism comprises a precipitation disc, the precipitation disc is located in the filter screen, a discharging pipe is rotationally installed in the precipitation disc, and a plurality of discharging openings are formed in the surface of the discharging pipe. According to the tin bar production feeding device, through cooperation of the precipitation disc and the filter screen, large-particle impurities in liquid tin raw materials can be precipitated firstly, then small-particle impurities are filtered, and solid impurities are prevented from entering a forming mold. The discharging pipe is rotationally arranged in the precipitation disc, and the multiple discharging openings are formed in the outer surface of the discharging pipe, so that raw materials can rotate along with the discharging pipe while flowing out of the discharging pipe, relative flowing of all components of the raw materials is promoted, and the consistency of metallographic structures in tin bars is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tin bar production, in particular to a tin bar production feeding device. Background Art

[0002] Tin bar is a product of solder. Tin bar can be divided into leaded tin bar and lead-free tin bar, both of which are used for soldering circuit boards. In order to improve the performance of tin bar in all aspects, various metal elements and antioxidant elements such as nickel, antimony, bismuth, rare earth, etc. are added to the tin bar. When the tin bar is produced, various elements are mixed with molten tin water and then cast into shape through a mold.

[0003] At present, when casting tin bars, only one material pipe or hopper is used to feed the material into the mold. When the liquid tin raw material passes through the material pipe or hopper, the components in it are easily separated due to insufficient relative flow, which affects the mixing degree of the components and further affects the consistency of the internal metallographic structure of the tin bar after molding. In addition, some solid impurities are sometimes mixed in the liquid raw material. If the impurities cannot be effectively removed, they will enter the molding mold and affect the quality of the finished tin bar. In view of this, we propose a tin bar production feeding device. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a tin bar production feeding device, which solves the current problem of separation of components in the raw material and doping of the raw material with solid impurities when feeding the liquid tin raw material.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tin bar production feeding device comprises a fixed ring, a hopper and a filter screen arranged on the fixed ring, wherein the filter screen is located inside the hopper; a mixing mechanism is arranged on the fixed ring;

[0007] The mixing mechanism comprises a sedimentation disc, which is located inside the filter screen. A discharge pipe is rotatably installed inside the sedimentation disc, and a plurality of discharge ports are provided on the surface of the discharge pipe.

[0008] As a preferred technical solution, the mixing mechanism further comprises a connecting ring, the connecting ring is fixedly mounted on the fixing ring, and the connecting ring is fixedly connected to the sedimentation plate via a plurality of connecting rods.

[0009] As a preferred technical solution, a plurality of sediment troughs are provided at the bottom of the sedimentation tray, and a stirring blade is fixedly connected to the discharge pipe.

[0010] As a preferred technical solution, a reduction motor is fixedly mounted on the inner wall of the sedimentation tray, and the output end of the reduction motor is connected to the bottom end of the discharge pipe.

[0011] As a preferred technical solution, the mixing mechanism also includes a support plate, which is fixedly mounted on the fixing ring, and a feed pipe is fixedly mounted on the support plate, the bottom end of the feed pipe is inserted into the discharge pipe and is rotatably connected to the inner wall of the discharge pipe.

[0012] As a preferred technical solution, the hopper is threadedly connected to a fixing ring, a protrusion is formed on the inner wall of the fixing ring, and the filter screen is threadedly connected to the protrusion.

[0013] As a preferred technical solution, a lug is fixedly connected to the surface of the fixing ring.

[0014] By means of the above technical solution, the utility model provides a tin bar production feeding device, which has at least the following beneficial effects:

[0015] (1) The tin bar production and feeding device can first precipitate large particle impurities in the liquid tin raw material and then filter small particle impurities through the cooperation of the precipitation plate and the filter screen, thereby preventing solid impurities from entering the forming mold. By rotatably setting a discharge pipe in the precipitation plate and opening a plurality of discharge ports on the outer surface of the discharge pipe, the raw material can rotate with the discharge pipe while flowing out of the discharge pipe, thereby promoting the relative flow between the components of the raw material and improving the consistency of the metallographic structure inside the tin bar.

[0016] (2) The tin bar production feeding device can precipitate impurities in the raw materials by opening a plurality of sedimentation grooves at the bottom of the precipitation tray, and reduce the contact area between the precipitated impurities and the liquid, so that the impurities are not easily re-mixed into the liquid due to the stirring of the liquid in the precipitation tray, thereby ensuring the precipitation effect.

[0017] (3) The tin bar production feeding device is convenient for disassembling the hopper and the filter screen by providing the first threaded portion and the second threaded portion, thereby facilitating the cleaning and replacement of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 It is an exploded view of the overall structure of an embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional view of the overall structure of an embodiment of the utility model;

[0022] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0023] Figure 5 This is a schematic diagram of a fixing ring in an embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of a sedimentation tray in an embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of the discharge pipe and the delivery pipe in the embodiment of the utility model.

[0026] In the figure: 1. fixing ring; 101. raised portion; 1011. first threaded portion; 1012. second threaded portion; 2. hopper; 201. injection pipe; 3. filter screen; 4. mixing mechanism; 401. connecting ring; 402. connecting rod; 403. sedimentation plate; 4031. sedimentation trough; 404. reduction motor; 405. discharge pipe; 4051. discharge port; 406. stirring blade; 407. feed pipe; 408. support plate; 5. lug. DETAILED DESCRIPTION

[0027] 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.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 5 The utility model provides a tin bar production and feeding device, comprising a fixed ring 1, and two lugs 5 are fixedly connected to the surface of the fixed ring 1, which are used to install the fixed ring 1 on an external structure, thereby fixing the tin bar production and feeding device. A hopper 2 and a filter screen 3 are respectively arranged in the fixed ring 1. Among them, the hopper 2 is bucket-shaped and has an injection pipe 201 formed at the bottom, which is used to inject molten tin raw material into the tin bar forming mold. The filter screen 3 is located inside the hopper 2, and is used to filter solid impurities in the tin raw material. The surface of the filter screen 3 has multiple mesh holes and is hemispherical, so that its filtering surface area can be increased without increasing its horizontal projection area.

[0030] Further, the inner wall of the fixing ring 1 extends inward to form a raised portion 101, and the bottom surface of the raised portion 101 is higher than the bottom surface of the fixing ring 1, so that the inner wall of the fixing ring 1 is stepped. A first threaded portion 1011 is formed on the inner wall of the raised portion 101, and a second threaded portion 1012 is formed on the inner wall of the fixing ring 1 located below the raised portion 101. Among them, the outer surface of the hopper 2 is threadedly connected to the second threaded portion 1012, so that the hopper 2 is easy to disassemble. The outer surface of the filter 3 is threadedly connected to the first threaded portion 1011, so that the filter 3 is easy to disassemble. When it is necessary to clean the impurities on the surface of the filter 3 or replace the filter 3, the hopper 2 is first rotated from the bottom of the device to separate the hopper 2 from the fixed ring 1. After the hopper 2 is removed, the filter 3 is threadedly separated from the fixing ring 1 to achieve the disassembly of the filter 3, which is convenient for cleaning or replacing the filter 3.

[0031] Embodiment 2

[0032] See also Figure 1-Figure 3 as well as Figure 6 , Figure 7 A mixing mechanism 4 is provided on the fixed ring 1 for mixing the various components in the tin raw material.

[0033] Specifically, the mixing mechanism 4 includes a connecting ring 401 and a sedimentation plate 403, and the sedimentation plate 403 is located inside the filter screen 3. The connecting ring 401 is fixedly installed on the top of the fixing ring 1, and a plurality of connecting rods 402 are fixedly connected to the inner wall of the connecting ring 401. The plurality of connecting rods 402 are distributed in a circular array with the axis of the connecting ring 401 as the center, and the bottom ends of the plurality of connecting rods 402 are fixedly connected to the top of the sedimentation plate 403, so that the sedimentation plate 403 is suspended in the filter screen 3.

[0034] In this embodiment, the mixing mechanism 4 further includes a support plate 408, which is fixedly mounted on the fixing ring 1. A feed pipe 407 is fixedly mounted on the inner wall of the support plate 408. One end of the feed pipe 407 is used to connect a liquid pump (not shown in the figure). The other end of the feed pipe 407 extends to the axis of the precipitation plate 403 and then bends downward, which is used to add tin raw materials into the device.

[0035] Furthermore, a reduction motor 404 is fixedly mounted on the inner wall of the precipitation plate 403, and the output end of the reduction motor 404 is connected to a discharge pipe 405. The bottom end of the feed pipe 407 is inserted into the discharge pipe 405 and is rotatably connected to the inner wall of the discharge pipe 405, so that the tin raw material enters the discharge pipe 405.

[0036] Combination Figure 7As shown, a plurality of discharge ports 4051 are provided on the surface of the discharge pipe 405, so that the raw materials flow out from the side wall of the discharge pipe 405. A stirring blade 406 is fixedly connected to the discharge pipe 405 for stirring the discharged raw materials. The discharge ports 4051 are spaced apart from the stirring blade 406, so that the discharged raw materials can better contact the stirring blade 406, thereby improving the stirring effect.

[0037] In this embodiment, a plurality of sedimentation grooves 4031 are provided at the bottom of the sedimentation tray 403 for settling large particles of impurities in the tin material. The sedimentation grooves 4031 are conical in shape, which can reduce the bottom area of ​​the grooves, so that the impurities at the bottom of the grooves are not easily re-mixed into the liquid as the liquid in the sedimentation tray 403 flows.

[0038] When the tin bar production feeding device of the utility model is used, the device is installed above the tin bar forming mold through the lug 5, and one end of the feeding pipe 407 is connected to the output end of the feeding pump. When feeding is required, the pump body and the reduction motor 404 are started. The pump body pumps the tin raw material into the feeding pipe 407.

[0039] The tin raw material enters the discharge pipe 405 through the feed pipe 407, and then flows out from the discharge port 4051 on the surface of the discharge pipe 405. The raw material flows into the precipitation tray 403 for precipitation. When the liquid level of the raw material is above the precipitation tray 403, it will flow out of the precipitation tray 403 and enter between the precipitation tray 403 and the filter 3. After the raw material is filtered by the filter 3, the solid impurities in the raw material are further removed. The filtered tin raw material enters the hopper 2 and is injected into the molding mold through the injection pipe 201 at the bottom of the hopper 2 for molding.

[0040] In this process, the output end of the reduction motor 404 drives the discharge pipe 405 to rotate, and the discharge pipe 405 simultaneously drives the stirring blade 406 on its surface to rotate. The stirring blade 406 stirs the liquid tin raw material flowing out of the discharge port 4051 to promote the mixing of various components in the raw material. At the same time, the large particles of fixed impurities are pushed to the sediment tank 4031 through disturbance. The large particles of fixed impurities enter the sediment tank 4031 under the action of gravity and are precipitated, thereby improving the purity of the liquid and ensuring the molding quality.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although 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 tin bar production feeding device, comprising a fixing ring (1) and a hopper (2) and a filter screen (3) arranged on the fixing ring (1), characterized in that: The filter screen (3) is located inside the hopper (2); a mixing mechanism (4) is provided on the fixing ring (1); The mixing mechanism (4) comprises a sedimentation plate (403), the sedimentation plate (403) is located inside the filter screen (3), a discharge pipe (405) is rotatably installed inside the sedimentation plate (403), and a plurality of discharge ports (4051) are provided on the surface of the discharge pipe (405).

2. The tin bar production feeding device according to claim 1, characterized in that: The mixing mechanism (4) further comprises a connecting ring (401), wherein the connecting ring (401) is fixedly mounted on the fixing ring (1), and the connecting ring (401) is fixedly connected to the sedimentation plate (403) via a plurality of connecting rods (402).

3. The tin bar production feeding device according to claim 1, characterized in that: A plurality of sediment troughs (4031) are provided at the bottom of the sedimentation plate (403), and a stirring blade (406) is fixedly connected to the discharge pipe (405).

4. The tin bar production feeding device according to claim 1, characterized in that: A reduction motor (404) is fixedly mounted on the inner wall of the sedimentation plate (403), and the output end of the reduction motor (404) is connected to the bottom end of the discharge pipe (405).

5. The tin bar production feeding device according to claim 1, characterized in that: The mixing mechanism (4) further comprises a support plate (408), wherein the support plate (408) is fixedly mounted on the fixing ring (1), and a feed pipe (407) is fixedly mounted on the support plate (408), wherein the bottom end of the feed pipe (407) is inserted into the discharge pipe (405) and is rotatably connected to the inner wall of the discharge pipe (405).

6. The tin bar production and feeding device according to claim 1, characterized in that: The hopper (2) is threadedly connected to the fixing ring (1); a protrusion (101) is formed on the inner wall of the fixing ring (1); and the filter screen (3) is threadedly connected to the protrusion (101).

7. The tin bar production and feeding device according to claim 1, characterized in that: A lug (5) is fixedly connected to the surface of the fixing ring (1).

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