Large particle solder feeder

Abstract

A large-particle solder feeder, with a barrel installed on the upper part of the shell, the nozzle of the barrel extends into the shell, a conveyor belt and a flow regulating mechanism are arranged in the shell, the main and auxiliary material outlets are arranged at the bottom, a driving device is arranged on the outside, a chamber shell is arranged on the outside of the bottom of the shell, a feed hole, an auxiliary material chamber and an auxiliary material hole are arranged in the chamber shell, the feed hole is connected with the main material outlet, the auxiliary material chamber is connected with the auxiliary material outlet and the auxiliary material hole at the bottom; one end of the conveyor belt is below the nozzle, and the other end is above the main material outlet, driven by the driving device; the flow regulating mechanism is arranged above the main material outlet, with two blocks and a fixed block fixed in the shell, the blocks are connected side by side to one side of the fixed block to form a U-shaped structure with the opening aligned with the end of the conveyor belt, the gap is aligned with the main material outlet and the spacing of the gap is adjustable. The present invention can accurately control the flow of solder by adjusting the distance between the nozzle and the conveyor belt, the speed of the conveyor belt and the flow regulating mechanism, and at the same time, the large-particle solder is not crushed or crushed.

Description

Technical Field

[0001] The invention relates to a solder feeder, in particular to a large-particle solder feeder, and belongs to the technical field of mechanical manufacturing. Background Art

[0002] Cladding is an important branch in the field of welding. It is widely used in the manufacturing and repair of parts in metallurgy, mining, agricultural machinery, power stations, construction, petrochemicals, transportation, aerospace, nuclear power and other industrial sectors, as well as in the wear-resistant and corrosion-resistant surface processing of metal surfaces.

[0003] Overlay welding is a technique that involves welding filler metal wire or powder onto the surface of metal materials or parts. Specific surface properties and surface dimensions can be obtained through overlay welding. Overlay welding is mostly used to effectively change the surface properties of metal parts and extend the service life of parts. It is widely used in the manufacture and repair of parts that are wear-resistant, corrosion-resistant or have special performance requirements.

[0004] The particle feeders used in existing cladding welding are mostly called powder feeders, which are mainly used for accurate feeding of fine powdered particle solder. The main types include screw powder feeders, impeller powder feeders, synchronous belt powder feeders and scraper powder feeders, such as:

[0005] "Screw-type multifunctional powder feeder" provided by the invention patent application (application number 201711156446.3), "A powder feeder" provided by the invention patent application (application number 201811625372.8), "Powder feeder" provided by the utility model patent (application number 201521086684.8), "A composite motion powder feeder" provided by the invention patent (application number 201510821048.3), "An integrated additive manufacturing laser forming equipment" provided by the utility model patent (application number 201721875246.9), "A double-layer structure of scraper powder feeder powder hopper" provided by the invention patent (application number 201710456279.8), and "A double-layer structure of scraper powder feeder powder hopper" provided by the invention patent (application number 201710456279.8).

[0006] These powder feeders are mainly used to supply powdered cladding materials. The supply requirements for the feeders are mainly the supply accuracy and stability of the powder. Since the speed of this type of cladding is slow, the supply amount of powder is generally within 200 grams per minute. Since the supply speed of powder is relatively slow and the flow rate is small, the above-mentioned powder feeders all use a single-stage method to supply cladding powder, that is, the flow control of the cladding material is achieved through the first-level flow control and the conveying speed.

[0007] The powder feeder in the prior art can better meet the supply of 80-300 mesh powder cladding materials, but is not suitable for cladding materials containing irregular large particles.

[0008] In order to further improve the wear resistance of products in industrial production, in some special surfacing operations, an appropriate amount of alloy particles, such as tungsten carbide particles, need to be added to the surfacing materials as a skeleton material to improve the wear resistance of the surfacing layer. It is like adding pebbles to cement mortar during the pouring of cement products, which can significantly improve the strength of cement products. Therefore, with the development of surfacing technology, the application demand for composite surfacing using large-particle alloy composite surfacing materials will increase.

[0009] This type of composite surfacing materials includes welding wire and particles, including welding wire as the main surfacing base material, appropriately adding alloy particles and welding powder as the main surfacing base material, appropriately adding alloy particles.

[0010] In the composite cladding process, the diameter of the added alloy particles is relatively large, much larger than the diameter of the base powder (80-300 mesh), generally between 1mm and 5mm, and mostly irregular in shape, with edges and spikes. Therefore, the existing powder feeder cannot achieve stable feeding of this type of solder.

[0011] The powder feeder in the prior art performs precise control of the one-time flow rate at the discharge port. The powder feeder designed according to the required flow rate often has a very small discharge port diameter. When conveying solder containing irregular large-particle alloy materials, this small-diameter powder feeder often becomes blocked at the narrow part of the discharge port, resulting in intermittent and unstable feeding. If the flow rate is increased to solve the blockage, it cannot meet the process requirements of small flow rate feeding for welding.

[0012] In addition, the screw or impeller in the screw powder feeder and impeller-type feeder in the prior art will extrude, crush and crush the large-particle alloy material, destroying the structure of the large-particle alloy material in the material and making it lose its function; and the scraper of the scraper-type feeder can easily cause particle fragments to be caught in it, resulting in failure to work normally.

[0013] Therefore, accurate and stable delivery of solder containing large-particle alloy materials is a difficult problem in the current composite cladding welding process. Summary of the invention

[0014] In order to overcome the shortcomings of the prior art, an embodiment of the present invention provides a large-particle solder feeder, which aims to provide stable, precisely flow-controlled solder containing irregular alloy large particles for composite surfacing and ensure that the external structure of the irregular alloy large particles is not destroyed, so as to improve production efficiency and ensure product quality.

[0015] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0016] A large particle solder feeder, comprising:

[0017] Shell, barrel and chamber shell;

[0018] The shell is provided with a conveyor belt and a flow regulating mechanism inside, the bottom of the shell is provided with a main material outlet and a secondary material outlet, and the outer side of the shell is provided with a driving device;

[0019] The longitudinal width of the main material outlet is adjusted according to the feeding amount of the large-particle solder, and the auxiliary material outlet is arranged on both longitudinal sides of the main material outlet and at the bottom of the conveyor belt;

[0020] The barrel comprises a barrel body and a nozzle, wherein the barrel body is mounted on the upper part of the outer side of the shell, and the nozzle extends into the interior of the shell;

[0021] The material chamber shell is installed at the bottom of the shell, and a material discharge hole, a secondary material chamber and a secondary material hole are provided inside the material chamber shell. The material discharge hole is communicated with the main material outlet, the secondary material chamber is communicated with the secondary material outlet, and the secondary material hole is arranged at the bottom of the secondary material chamber and communicated with the secondary material chamber;

[0022] One end of the conveyor belt is arranged below the material nozzle, and the other end of the conveyor belt is arranged above the main material outlet, and the conveyor belt is driven by a driving shaft of the driving device passing through the shell;

[0023] The flow regulating mechanism is arranged above the main material outlet, and the flow regulating mechanism includes two blocks and a fixed block, the fixed block is fixed on the shell, the two blocks are movably connected side by side on one side of the fixed block to form a U-shaped structure, the opening of the U-shaped structure is aligned with the end of the conveyor belt, the gap between the two blocks of the U-shaped structure is the unloading space of the large-particle solder, the unloading space is aligned with the main material outlet, and the distance between the two blocks constituting the unloading space is adjusted according to the flow requirement of the large-particle solder.

[0024] Furthermore, the large-particle solder feeder further comprises a second flow regulating mechanism, which is arranged at the bottom of the flow regulating mechanism or below the main material outlet;

[0025] The second flow regulating mechanism includes N flow regulating devices, where N is a natural number;

[0026] The flow regulating device is a component composed of two baffles movably connected side by side to one side of a fixed plate, and the spacing between the two baffles is adjusted according to the flow requirement of the large-particle solder and constitutes a drop space for the large-particle solder; or

[0027] The flow regulating device is a connecting body composed of an annular component and a fixed plate, and the inner ring diameter of the annular component is adjusted according to the flow requirement of the large-particle solder and constitutes a material drop space for the large-particle solder;

[0028] The N flow regulating devices are respectively fixed in series up and down through their own fixing plates inside the shell and are located below the flow regulating mechanism, or are arranged at the lower part of the main material outlet and are located above the discharge hole. The blanking space of each flow regulating device gradually decreases from top to bottom, wherein the blanking space of the first flow regulating device is matched and aligned with the discharge space of the flow regulating mechanism or is matched and aligned with the longitudinal width of the main material outlet.

[0029] Furthermore, the driving device is any one of a servo motor, a stepper motor, and a reduction motor.

[0030] Furthermore, a switch mechanism is provided on the upper portion of the nozzle, and the switch mechanism is used to open or close the nozzle.

[0031] Preferably, the switch mechanism is a shutter.

[0032] Furthermore, an opening and closing mechanism is provided at the bottom of the auxiliary material hole, and the opening and closing mechanism is used to open or close the auxiliary material hole.

[0033] Preferably, the opening and closing mechanism is a ball valve.

[0034] Furthermore, the large-particle solder feeder is also provided with an oscillating device, which is arranged on the shell to help the large-particle solder to fall.

[0035] Furthermore, the large particle solder feeder also includes a baffle and a tensioning device;

[0036] The baffle is arranged between the flow regulating mechanism and the end of the conveyor belt and on both sides of the conveyor belt; the tensioning device is installed at the bottom of the shell and is located below the conveyor belt to tension the conveyor belt.

[0037] Furthermore, the large-particle solder feeder also includes a feed pipe and an auxiliary feed pipe;

[0038] The feed pipe is arranged on the opening of the feed hole at the bottom of the material chamber shell, and the auxiliary feed pipe is arranged on the opening of the auxiliary feed hole at the bottom of the material chamber shell.

[0039] The beneficial effects and significant improvements of the present invention are:

[0040] 1) A large-particle solder feeder provided in an embodiment of the present invention comprises a shell, a barrel and a chamber shell, a conveyor belt and a flow regulating mechanism are arranged inside the shell, the barrel comprises a barrel body and a nozzle, the barrel body is mounted on the upper part of the outer side of the shell, and the nozzle extends into the shell, and the flow of the large-particle solder can be preliminarily adjusted by adjusting the distance between the nozzle of the barrel and the conveyor belt and the speed of the conveyor belt; the flow of the large-particle solder can be further accurately adjusted by adjusting the flow regulating mechanism; at the same time, in the large-particle solder feeder provided in an embodiment of the present invention, the large-particle solder will not be crushed or crushed when flowing, thereby destroying the structure of the large-particle solder; in addition, there is no narrow place to cause material blockage during the flow of the large-particle solder, thereby making the large-particle solder feeder provided in an embodiment of the present invention supply large-particle alloy solder, the feeding is stable, the flow control is accurate, and the production efficiency can be improved and the product quality can be guaranteed;

[0041] 2) The large-particle solder feeder provided in the embodiment of the present invention has a novel and unique design, is simple, convenient, reliable, and easy to expand. It can effectively improve the precision control by connecting the second flow regulating mechanism in series up and down on the basic feeder, further expand the scope of use and occasions of use, and ensure production and quality;

[0042] 3) The large-particle solder feeder provided in the embodiment of the present invention has a compact structure, is easy to produce, requires little investment, has good effects, is stable and practical, and operates reliably. Therefore, it has great value for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention.

[0044] Obviously, the drawings described below are only drawings of some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, but these other drawings also belong to the drawings required for use in the embodiments of the present invention.

[0045] Figure 1 A schematic diagram of the three-dimensional structure of a large particle solder feeder provided in an embodiment of the present invention;

[0046] Figure 2 A schematic cross-sectional structure diagram of a large particle solder feeder provided in an embodiment of the present invention;

[0047] Figure 3A schematic diagram of the top view of the internal structure of a shell of a large particle solder feeder provided by an embodiment of the present invention;

[0048] Figure 4 A schematic diagram of the arrangement of a main material outlet and a secondary material outlet inside a shell of a large particle solder feeder provided in an embodiment of the present invention;

[0049] Figure 5 A schematic cross-sectional structure diagram of a large particle solder feeder connected in series with a second flow regulating mechanism provided in an embodiment of the present invention.

[0050] In the figure:

[0051] 1-shell, 2-barrel, 3-chamber shell, 4-transmission belt, 5-flow regulating mechanism, 5'-flow regulating device, 6-driving device, 7-baffle, 8-tensioning device;

[0052] 11-main material outlet, 12-auxiliary material outlet, 21-cylinder, 22-material nozzle, 31-feeding hole, 32-auxiliary material chamber, 33-auxiliary material hole, 34-feeding pipe, 35-auxiliary material pipe, 51-block, 52-fixed block. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings provided in the embodiments of the present invention. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] It should be noted that the terms "first", "second" and "third" (if any) in the specification and claims of the present invention and the drawings of the embodiments of the present invention are only used to distinguish different objects, rather than to describe a specific order. In addition, the term "comprising" and any variation thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0055] It should be understood that, in the description of the embodiments of the present invention, terms such as "upper", "lower", "top", "bottom", "longitudinal", "lateral", etc., which indicate orientation or position, are only based on the orientation or position relationship shown in the drawings of the embodiments of the present invention. They are for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element must have a specific orientation, specific orientation structure and operation. Therefore, they should not be understood as limiting the present invention.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a movable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] It should also be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be repeated in some embodiments.

[0058] The technical solution of the present invention is described in detail below with specific embodiments.

[0059] Example 1

[0060] like Figure 1 A schematic diagram of a three-dimensional structure of a large particle solder feeder provided by an embodiment of the present invention, Figure 2 A schematic cross-sectional view of a large particle solder feeder provided by an embodiment of the present invention, Figure 3 A schematic diagram of the internal structure of a shell of a large particle solder feeder provided by an embodiment of the present invention is shown in FIG. Figure 4 A schematic diagram of the arrangement of the main material outlet and the auxiliary material outlet inside the shell of a large particle solder feeder provided by an embodiment of the present invention is shown as follows:

[0061] A large particle solder feeder, comprising:

[0062] Shell 1, barrel 2, material chamber shell 3;

[0063] The housing 1 is provided with a conveyor belt 4 and a flow regulating mechanism 5 inside, a main material outlet 11 and a secondary material outlet 12 are provided at the bottom of the housing 1, and a driving device 6 is provided outside the housing 1;

[0064] The longitudinal width of the main material outlet 11 is adjusted according to the feeding amount of the large-particle solder, and the auxiliary material outlet 12 is arranged on both longitudinal sides of the main material outlet 11 and at the bottom of the conveyor belt 4;

[0065] The barrel 2 includes a barrel body 21 and a nozzle 22. The barrel body 21 is installed on the upper part of the outer side of the shell 1, and the nozzle 22 extends into the interior of the shell 1.

[0066] The material chamber housing 3 is installed at the bottom of the housing 1. A material discharge hole 31, a secondary material chamber 32 and a secondary material hole 33 are provided inside the material chamber housing 3. The material discharge hole 31 is communicated with the main material outlet 11, the secondary material chamber 32 is communicated with the secondary material outlet 12, and the secondary material hole 33 is arranged at the bottom of the secondary material chamber 32 and communicated with the secondary material chamber 32.

[0067] One end of the conveyor belt 4 is arranged below the material nozzle 22, and the other end of the conveyor belt 4 is arranged above the main material outlet 11. The conveyor belt 4 is driven by a driving shaft of a driving device 6 passing through the housing;

[0068] The flow regulating mechanism 5 is arranged above the main material outlet 11, and the flow regulating mechanism 5 includes two blocks 51 and a fixed block 52. The fixed block 52 is fixed on the shell 1, and the two blocks 51 are movably connected side by side on one side of the fixed block 52 to form a U-shaped structure. The opening of the U-shaped structure is aligned with the end of the conveyor belt 4. The gap between the two blocks 51 of the U-shaped structure is the unloading space for large-particle solder. The unloading space is aligned with the main material outlet 11, and the distance between the two blocks 51 constituting the unloading space is adjusted according to the flow requirement of the large-particle solder.

[0069] from Figures 1 to 4 It can be seen that:

[0070] The flow regulating mechanism 5 in this embodiment includes two blocks 51 and a fixed block 52. The two blocks 51 are installed side by side on one side of the fixed block 52 to form a U-shaped structure, and the opening of the U-shaped structure is aligned with the end of the conveyor belt 4. The fixed block 52 is fixed on the shell 1. The gap between the two blocks 51 of the U-shaped structure constitutes a feeding space for large-particle solder. The feeding space is aligned with the main material outlet 11. The distance between the two blocks 51 constituting the feeding space can be adjusted according to the flow requirement of the large-particle solder.

[0071] Obviously, the flow regulating mechanism 5 has a simple structure and is easy to adjust, and will not cause structural damage to the large-particle solder, nor will it cause blockage of the large-particle solder, affecting the smooth supply of the large-particle solder and the precise control of the flow.

[0072] In this embodiment, the driving device 6 can select any one of a servo motor, a stepper motor, a reduction motor or other types of driving devices or methods, as long as the feeding speed of the conveyor belt 4 is stable and controllable.

[0073] It can be seen from the above embodiments that:

[0074] First, the large-particle solder feeder provided by the embodiment of the present invention includes a shell 1, a barrel 2, and a chamber shell 3. The bottom of the shell 1 is provided with a main material outlet 11 and a secondary material outlet 12. The interior of the shell 1 is provided with a conveyor belt 4 and a flow regulating mechanism 5. By adjusting the distance ɑ between the nozzle 22 of the barrel 2 and the conveyor belt 4 and the running speed of the conveyor belt 4, the flow rate of the large-particle solder feed can be preliminarily adjusted;

[0075] Second, the large-particle solder feeder provided by the embodiment of the present invention has a flow regulating mechanism 5 including two blocks 51 and a fixed block 52. The two blocks 51 are installed side by side on one side of the fixed block 52 to form a U-shaped structure. The opening of the U-shaped structure is aligned with the end of the conveyor belt 4. The gap between the two blocks 51 constituting the U-shaped structure constitutes a feeding space for the large-particle solder. The feeding space is aligned with the main material outlet 11. The distance between the two blocks 51 constituting the feeding space can be adjusted according to the flow requirement of the large-particle solder. In this way, the flow rate of the large-particle solder feeder can be further accurately adjusted by adjusting the distance between the two blocks 51 of the flow regulating mechanism 5.

[0076] Thirdly, it can be seen from the technical solution provided in this embodiment that when the large-particle solder feeder provided in the embodiment of the present invention conveys large-particle solder, the large-particle solder will not be crushed or crushed, thereby destroying the structure of the large-particle solder;

[0077] Fourthly, it can be seen that in the large-particle solder feeder provided by the embodiment of the present invention, there is no narrow place in the flow process of the large-particle solder, so it will not cause material blockage.

[0078] Therefore, it can be found that when the large-particle solder feeder provided in the embodiment of the present invention supplies solder containing large-particle alloy, the solder flow is stable and the flow can be precisely controlled, and the large-particle solder structure will not be damaged. Therefore, it can improve production efficiency and ensure product quality.

[0079] Example 2

[0080] This embodiment is an extended implementation of the embodiment 1, and aims to further accurately control the flow of large-particle solder at multiple levels.

[0081] In this embodiment, the basic structure of the large particle solder feeder is the same as that shown in Example 1, except that it also includes a second flow regulating mechanism, which is arranged at the bottom of the flow regulating mechanism 5 or below the main material outlet 11.

[0082] The second flow regulating mechanism may include N flow regulating devices 5 ′, where N is a natural number.

[0083] Figure 5The schematic diagram of the cross-sectional structure of a large-particle solder feeder with a second flow regulating mechanism connected in series provided in an embodiment of the present invention shows a scenario in which the second flow regulating mechanism is connected in series below the flow regulating mechanism 5, while the scenario in which the second flow regulating mechanism is arranged below the main material outlet 11 is not shown, but its working principle is the same as the principle in which the second flow regulating mechanism is connected in series below the flow regulating mechanism 5, so it will not be repeated here.

[0084] like Figure 5 As shown, the flow regulating device 5' is a component composed of two baffles movably connected side by side to one side of a fixed plate, and the spacing between the two baffles is adjusted according to the flow requirement of the large particle solder and constitutes a drop space for the large particle solder; or

[0085] The flow regulating device is a connecting body (not shown in the drawings) composed of an annular component and a fixed plate. The inner ring diameter of the annular component is adjusted according to the flow requirement of the large-particle solder and constitutes a drop space for the large-particle solder.

[0086] The N flow regulating devices 5' are respectively fixed in series in the form of up and down connection through their own fixing plates inside the shell 1 and are located below the flow regulating mechanism 5, or are arranged inside the main material outlet 11 and are located above the discharge hole 31. The blanking space of each flow regulating device 5' gradually decreases from top to bottom, wherein the blanking space of the first flow regulating device 5' is matched and aligned with the discharge space of the flow regulating mechanism 5 or is matched and aligned with the longitudinal width of the main material outlet 11.

[0087] This design allows for multi-level precise control of the flow of large solder particles:

[0088] First, if Figure 1 or Figure 3 As shown, by adjusting the distance ɑ between the nozzle 22 of the barrel 2 and the conveyor belt 4 and the speed of the conveyor belt 4, the feed flow rate of the large particle solder can be preliminarily adjusted;

[0089] Secondly, if Figure 1 or Figure 4 As shown, after the large-particle solder on the conveyor belt 4 passes through the two blocks 51 of the flow regulating mechanism 5, the large-particle solder between the two blocks 51 is regulated by the flow regulating mechanism 5 for the second time, and the large-particle solder outside the two blocks 51 falls into the auxiliary material chamber 32, and can be led out of the large-particle solder feeder through the auxiliary material hole 33 for reuse;

[0090] The large solder particles passing through the flow regulating mechanism 5 fall into the first flow regulating device 5' of the second flow regulating mechanism. In the process of the large solder particles falling into the first flow regulating device 5', since the material dropping space of the first flow regulating device 5' is smaller than the material dropping space of the flow regulating mechanism 5, part of the large solder particles are blocked outside the material dropping space of the first flow regulating device 5' and fall into the auxiliary material chamber 32, and the flow of the large solder particles is regulated for the third time.

[0091] In this way, through the adjustment of multiple flow regulating devices 5' in the second flow regulating mechanism, the flow of large-particle solder can be accurately controlled. In this process, the large-particle solder will not be crushed or crushed, thereby destroying the structure of the large-particle solder and causing material blockage. This can ensure a smooth supply of cladding materials and accurate flow control to ensure product quality.

[0092] Example 3

[0093] This embodiment is a further improvement made to the large particle solder feeder provided in the embodiment of the present invention on the basis of the above-mentioned embodiment 1 or embodiment 2, so as to achieve better use effect.

[0094] First, based on the above-mentioned embodiment 1 or embodiment 2, this embodiment sets a switch mechanism (not shown in the figure) on the nozzle 22, and the switch mechanism is used to open or close the nozzle 22, so as to control the start and end of the operation of the large-particle solder feeder.

[0095] Preferably, the switch mechanism is a plate gate (not shown in the figure); the plate gate is the simplest switch mechanism, which is easy to manufacture, low in price, and not easy to be blocked.

[0096] Secondly, based on the above-mentioned embodiments 1 and 2, this embodiment sets an opening and closing mechanism (not shown in the figure) at the bottom of the auxiliary material hole 33, and the opening and closing mechanism is used to open or close the auxiliary material hole 33. In this way, there is no need to deal with the large-particle solder in the auxiliary material chamber 32 and the auxiliary material hole 33 at any time. Instead, it is only necessary to open the opening and closing mechanism according to the material conditions in the auxiliary material chamber 32 and the auxiliary material hole 33 to release the large-particle solder, which can save manpower and reduce the labor intensity of operators.

[0097] Preferably, the opening and closing mechanism is a ball valve (not shown in the figure) because the ball valve is relatively simple, easy to manufacture, low in price, reliable in operation, and not easy to clog.

[0098] Furthermore, based on the above-mentioned embodiment 1 or embodiment 2, this embodiment is also provided with an oscillation device (not shown in the figure). The oscillation device is arranged on the shell 1 to help the large-particle solder fall, which can make the large-particle solder in the barrel 2 flow more smoothly and steadily, eliminating the risk of clogging of the nozzle 22.

[0099] Furthermore, based on the above-mentioned embodiment 1 or embodiment 2, this embodiment is further provided with a baffle 7 and a tensioning device 8;

[0100] The baffle 7 is arranged between the flow regulating mechanism 5 and the end of the conveyor belt 4 and on both sides of the conveyor belt 4, so that the large-particle solder on the conveyor belt 4 will not splash into the auxiliary material chamber 32, thereby ensuring the accuracy of the large-particle solder flow;

[0101] The tensioning device 8 is installed inside the housing 1 and located at the bottom of the conveyor belt 4 for tensioning the conveyor belt 4 .

[0102] Furthermore, based on the above-mentioned embodiment 1 or embodiment 2, this embodiment is also provided with a feed pipe 34 and an auxiliary material pipe 35. The feed pipe 34 is arranged on the hole opening of the feed hole 31 at the bottom of the material chamber shell 3, and the auxiliary material pipe 35 is arranged on the hole opening of the auxiliary material hole 33 at the bottom of the material chamber shell 3. In this way, on the one hand, the embodiment provided by the present invention is more beautiful, and on the other hand, it can also make the feeding of large-particle solder more convenient, and the recovery of large-particle solder flowing out of the auxiliary material hole 33 is also easier.

[0103] In summary, we can see that:

[0104] First, a large-particle solder feeder provided by an embodiment of the present invention can preliminarily adjust the feeding flow rate of large-particle solder by adjusting the distance between the nozzle of the barrel and the conveyor belt and the speed of the conveyor belt; the flow rate of large-particle solder can be further accurately adjusted by adjusting the flow regulating mechanism or adjusting the second flow regulating mechanism; at the same time, when the large-particle solder flows, it will not be crushed or crushed, thereby destroying the structure of the large-particle solder; in addition, when the large-particle solder flows, there is no narrow place to cause material blockage, so that the large-particle solder feeder provided by the embodiment of the present invention can feed the large-particle solder smoothly, accurately control the flow rate, and is simple and convenient to control during the surfacing process, thereby improving production efficiency and ensuring product quality;

[0105] Secondly, the large-particle solder feeder provided in the embodiment of the present invention has a novel and unique design, is simple, convenient, reliable and easy to expand. On the basis of the basic large-particle solder feeder, by adding a second flow regulating mechanism connected in series up and down, the feeding amount control accuracy can be effectively improved, and its use scope and use occasions can be further expanded to ensure production and quality.

[0106] Thirdly, the large-particle solder feeder provided by the embodiment of the present invention has a compact structure, is easy to produce, requires little investment, has good effects, is stable and practical, and operates reliably. Therefore, it has great value for promotion and application.

[0107] In the description of the above manual:

[0108] The descriptions of the terms "this embodiment", "an embodiment of the present invention", "as shown in...", "further", "a further improved technical sub-scheme", etc., mean that the specific features, structures, materials or characteristics described in the embodiment or example are included in at least one embodiment or example of the present invention; in this specification, the schematic expressions of the above terms are not necessarily for the same embodiment or example, and the specific features, structures, materials or characteristics described may be combined or combined in a suitable manner in any one or more embodiments or examples; in addition, a person of ordinary skill in the art may combine or combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without causing any contradiction.

[0109] Finally, it should be noted that:

[0110] The above embodiments are only used to illustrate the technical solutions of the present invention, but are not intended to limit alignment.

[0111] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some or all of the technical features therein, and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. The non-essential improvements, adjustments or substitutions made by those skilled in the art based on the contents of this specification are all within the scope of protection required by the present invention.

Claims

1. A large particle solder feeder, characterized in that: It includes a shell, a barrel, and a chamber shell; The shell is provided with a conveyor belt and a flow regulating mechanism inside, the bottom of the shell is provided with a main material outlet and a secondary material outlet, and the outer side of the shell is provided with a driving device; The longitudinal width of the main material outlet is adjusted according to the feeding amount of the large-particle solder, and the auxiliary material outlet is arranged on both longitudinal sides of the main material outlet and at the bottom of the conveyor belt; The barrel comprises a barrel body and a nozzle, wherein the barrel body is mounted on the upper part of the outer side of the shell, and the nozzle extends into the interior of the shell; The material chamber shell is installed at the bottom of the shell, and a material discharge hole, a secondary material chamber and a secondary material hole are provided inside the material chamber shell. The material discharge hole is communicated with the main material outlet, the secondary material chamber is communicated with the secondary material outlet, and the secondary material hole is arranged at the bottom of the secondary material chamber and communicated with the secondary material chamber; One end of the conveyor belt is arranged below the material nozzle, and the other end of the conveyor belt is arranged above the main material outlet, and the conveyor belt is driven by a driving shaft of the driving device passing through the shell; The flow regulating mechanism is arranged above the main material outlet, and the flow regulating mechanism includes two blocks and a fixed block, the fixed block is fixed on the shell, the two blocks are movably connected side by side on one side of the fixed block to form a U-shaped structure, the opening of the U-shaped structure is aligned with the end of the conveyor belt, the gap between the two blocks of the U-shaped structure is the unloading space of the large-particle solder, the unloading space is aligned with the main material outlet, and the distance between the two blocks constituting the unloading space is adjusted according to the flow requirement of the large-particle solder.

2. The large particle solder feeder according to claim 1, characterized in that: It also includes a second flow regulating mechanism, which is arranged at the bottom of the flow regulating mechanism or below the main material outlet; The second flow regulating mechanism includes N flow regulating devices, where N is a natural number; The flow regulating device is a component composed of two baffles movably connected side by side to one side of a fixed plate, and the spacing between the two baffles is adjusted according to the flow requirement of the large-particle solder and constitutes a drop space for the large-particle solder; or The flow regulating device is a connecting body composed of an annular component and a fixed plate, and the inner ring diameter of the annular component is adjusted according to the flow requirement of the large-particle solder and constitutes a material drop space for the large-particle solder; The N flow regulating devices are respectively fixed in series up and down through their own fixing plates inside the shell and are located below the flow regulating mechanism, or are arranged at the lower part of the main material outlet and are located above the discharge hole. The blanking space of each flow regulating device gradually decreases from top to bottom, wherein the blanking space of the first flow regulating device is matched and aligned with the discharge space of the flow regulating mechanism or is matched and aligned with the longitudinal width of the main material outlet.

3. The large particle solder feeder according to claim 1 or 2, characterized in that: The driving device is any one of a servo motor, a stepper motor and a reduction motor.

4. The large particle solder feeder according to claim 1 or 2, characterized in that: A switch mechanism is provided on the upper part of the nozzle, and the switch mechanism is used to open or close the nozzle.

5. The large particle solder feeder as claimed in claim 4, characterized in that: The switch mechanism is a shutter.

6. The large particle solder feeder according to claim 1 or 2, characterized in that: An opening and closing mechanism is provided at the bottom of the auxiliary material hole, and the opening and closing mechanism is used to open or close the auxiliary material hole.

7. The large particle solder feeder according to claim 6, characterized in that: The opening and closing mechanism is a ball valve.

8. The large particle solder feeder according to claim 1 or 2, characterized in that: A vibration device is also provided, and the vibration device is arranged on the shell to help the large-particle solder to fall.

9. The large particle solder feeder according to claim 1 or 2, characterized in that: It also includes a baffle and a tensioning device; the baffle is arranged between the flow regulating mechanism and the end of the conveyor belt and on both sides of the conveyor belt; The tensioning device is installed at the bottom of the shell and is located below the conveyor belt, and is used for tensioning the conveyor belt.

10. The large particle solder feeder according to claim 1 or 2, characterized in that: It also includes a feed pipe and an auxiliary feed pipe. The feed pipe is arranged on the hole opening of the feed hole at the bottom of the feed chamber shell, and the auxiliary feed pipe is arranged on the hole opening of the auxiliary feed hole at the bottom of the feed chamber shell.

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