CN114033128A

CN114033128A - Material conveying transition mechanism, pumping device and spraying equipment

Info

Publication number: CN114033128A
Application number: CN202111372353.0A
Authority: CN
Inventors: 李建明; 赵世瑞; 乔垒; 罗家驹
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-02-11

Abstract

The application relates to a defeated material transition mechanism, pumping installations and spraying equipment. Defeated material transition mechanism includes: the device body is provided with an accommodating space, a feeding port and a discharging port which are communicated with the accommodating space; the elastic energy storage piece is arranged in the accommodating space and is configured to be extruded and deformed by the pulp when the pulp enters from the feeding hole so as to store elastic potential energy, and the elastic potential energy is released when the pulp recovers and deforms so as to extrude the pulp from the discharging hole. The defeated material transition mechanism that this application embodiment provided is used for setting up between pumping device and spray gun, receives the thick liquids of pumping device pulse output at every turn, turns into the mechanical energy that pump thick liquids pressure produced elastic potential energy and stores to release elastic potential energy gradually in order to export thick liquids in succession, steadily, realize taking into account spraying continuity and great output flow, improve the whitewashing speed of spray gun, improve work efficiency.

Description

Material conveying transition mechanism, pumping device and spraying equipment

Technical Field

The application relates to the technical field of spraying equipment, in particular to a material conveying transition mechanism, a pumping device and spraying equipment.

Background

With the development of technology, the construction industry gradually changes from manual construction to mechanical and automatic construction, for example, in plastering construction, the existing spraying equipment replaces manual spraying. The spraying equipment is generally provided with a pumping device and a spray gun, slurry is output to the spray gun through the pumping device and is sprayed on a working surface through the spray gun, and the slurry spraying speed of the spray gun must be matched with the moving speed of the spray gun. The existing pumping device generally adopts a screw pump, and the screw pump has the characteristics that the feeding is stable and uniform, but the output flow is low, and a spray gun can only move at a low speed to match the slurry spraying speed. In order to improve the slurry discharging efficiency, a plunger pump with larger output flow is also considered, but the plunger pump can only discharge slurry intermittently, a spray gun cannot work continuously, slurry discharging is unstable and inconvenient to control, excessive spraying is easily caused in some areas, and slurry does not exist in some areas completely. The spraying continuity and the larger output flow of the spraying equipment cannot be considered, only a small-flow continuous pumping device can be adopted to ensure the spraying continuity, the spraying speed is slower, and the whole working efficiency is lower.

Disclosure of Invention

The application aims at providing a defeated material transition mechanism, pumping installations and spraying equipment to improve work efficiency.

The embodiment of the application is realized as follows:

first aspect, the embodiment of this application provides a defeated material transition mechanism, and it includes:

the device body is provided with an accommodating space, a feeding port and a discharging port which are communicated with the accommodating space;

the elastic energy storage piece is arranged in the accommodating space and is configured to be pressed and deformed by the pulp when the pulp enters from the feeding opening so as to store elastic potential energy, and release the elastic potential energy when the pulp restores to be deformed so as to extrude the pulp out of the discharging opening.

The spraying equipment is generally provided with a pumping device and a spray gun, slurry is output to the spray gun through the pumping device and is sprayed on a working surface through the spray gun, the material conveying transition mechanism provided by the embodiment of the application is arranged between the pumping device and the spray gun, the pumping device can adopt a plunger pump with larger output flow, the output flow of the plunger pump is larger, but the discharging mode is pulse type intermittent discharging, the material conveying transition mechanism receives the slurry output by each pulse of the pumping device, an elastic energy storage part is arranged in the material conveying transition mechanism, when the slurry is received, the elastic energy storage part converts mechanical energy generated by slurry pumping pressure into elastic potential energy to be stored, when the slurry pumping pressure disappears, the elastic potential energy is released by the elastic energy storage part to continuously and stably output the slurry to the spray gun, so that large-flow, continuous and stable spraying can be realized, and both the spraying continuity and larger output flow can be considered, the guniting speed of the spray gun is improved, the guniting speed does not need to be matched by reducing the moving speed of the spray gun, and the working efficiency is improved.

In some embodiments of the present application, the elastic energy storage member comprises:

the partition part is movably arranged in the accommodating space so as to divide the accommodating space into a first cavity and a second cavity, the first cavity is positioned on the first side of the partition part, the second cavity is positioned on the second side of the partition part, the first side is opposite to the second side, the first cavity and the second cavity are not communicated with each other, and the feeding port and the discharging port are communicated with the first cavity;

an elastic part connecting the partition part and the device body; the slurry enters from the feeding port and pushes the separating part to move from the first side to the second side, so that the elastic part is deformed and stores elastic potential energy; when the elastic part recovers and deforms, elastic potential energy is released, the partition part is pushed to move from the second side to the first side, and therefore the slurry is extruded out of the discharge hole.

In the technical scheme, under the action of the separating part and the elastic part, the first cavity and the second cavity are isolated from each other, the elastic potential energy is stored by pushing the separating part to compress the elastic part, the compression direction of the elastic part is consistent with the moving direction of the separating part, the moving paths of the separating part and the elastic part are clear, the operation is stable, and the continuous and stable output of the slurry is facilitated. And overall structure is simple compact, can adjust the maximum storage capacity through the compressible stroke that sets up the elastic component, is convenient for adjust the maximum storage capacity according to pumping device's single pulse output volume to thick liquids obtain supplementing before the complete output in guaranteeing defeated material transition mechanism, further guarantee continuous ejection of compact.

In some embodiments of the present application, the elastic portion is disposed in the second cavity, one end of the elastic portion abuts against the device body, and the other end of the elastic portion abuts against the partition portion.

In the technical scheme, the elastic part is not contacted with the slurry, so that the elastic part is not easy to corrode and pollute, and the durability of the elastic part is improved.

In some embodiments of the present application, the elastic portion comprises a nitrogen spring.

The nitrogen spring has the characteristics of small volume, large elasticity, long stroke, stable work and long service life, and in the technical scheme, the elastic part is set as the nitrogen spring, so that the whole structure of the material conveying transition mechanism is more compact, the process of releasing elastic potential energy by the nitrogen spring is more stable, and the continuous and stable slurry output is facilitated.

In some embodiments of the present application, the partition includes a piston movably disposed in the receiving space and a seal assembly for forming a seal between the piston and an inner wall of the receiving space.

In above-mentioned technical scheme, the piston round trip movement under thick liquids and the effect of elastic component realizes that pulsed thick liquids are acceptd and continuous type thick liquids output, and seal assembly blocks that thick liquids get into the second chamber through the gap between the inner wall of piston and accommodation space, and one of them avoids the elastic component to contact thick liquids impaired, and its two avoid thick liquids to leak, guarantees that thick liquids stably exports to the discharge gate.

In some embodiments of the present application, the sealing assembly includes an elastic plate and a pressing plate, the elastic plate is located between the pressing plate and the piston, the pressing plate is connected with the piston to compress the elastic plate, and an outer circumferential surface of the elastic plate is in close contact with an inner wall of the accommodating space.

In the technical scheme, the elastic plate is fixed on the end face of the piston through the pressing plate, the outer peripheral face of the elastic plate is extruded by the inner wall of the accommodating space, the sealing and isolating effect is realized, in the process that the separating part moves from the second side to the first side, the elastic plate can also scrape off the slurry on the inner wall of the accommodating space, so as to avoid slurry wall hanging, the slurry can be output as far as possible, the slurry is also prevented from being present at the second side of the separating part, so as to avoid the damage of the elastic part and the piston, in addition, the slurry is not present between the piston and the inner wall of the accommodating space, so as to avoid the interference of the piston motion, the piston can be smoothly moved in the accommodating space, and then the slurry is stably and continuously output.

In some embodiments of the present application, the sealing assembly further includes a sealing ring, and the sealing ring is sleeved on the outer circumferential surface of the piston.

In the technical scheme, the sealing ring is arranged on the peripheral surface of the piston, so that the sealing and isolating effects of the separating part are improved, slurry is prevented from leaking to the second side of the separating part, and the slurry is ensured to be stably and continuously output from the discharge hole.

In some embodiments of the present application, the partition further includes a guide ring disposed on an outer circumferential surface of the piston, the guide ring protruding from the outer circumferential surface of the piston in a radial direction of the piston body.

In above-mentioned technical scheme, through setting up the guide ring at the outer peripheral face of piston, the piston passes through the inner wall of guide ring contact accommodation space, and the frictional area when the piston removes reduces, and the frictional force who receives reduces, guarantees that the piston can move smoothly in accommodation space, and then guarantees to export thick liquids steadily, continuously.

In some embodiments of the present application, the material inlet is disposed in the device body, and the material inlet is provided with a check valve.

In the technical scheme, the feeding port is arranged on the device body, the pumping device is connected with the device body, the elastic energy storage part is not connected with the pumping device through the elastic energy storage part, the structure and the function of the elastic energy storage part are simplified, the elastic energy storage part is simple in structure and stable in work, the elastic energy storage part is convenient to install and replace, the one-way valve is arranged at the feeding port, slurry backflow is prevented, and the slurry is guaranteed to be stably and continuously output.

In some embodiments of this application, the check valve includes mount pad, baffle, commentaries on classics round pin and elasticity reset assembly, the mount pad connect in the device body, the baffle passes through change the round pin connect in the mount pad covers the pan feeding mouth, elasticity reset assembly is used for ordering about the baffle seals the pan feeding mouth.

In the technical scheme, the check valve is arranged as an integral module consisting of the mounting seat, the baffle plate, the rotating pin and the elastic reset assembly, and is convenient to mount and replace.

In some embodiments of the present application, an end of the pivot pin extends to an outer surface of the mount; the elastic reset assembly comprises a pull rod and a tension spring, the pull rod is fixedly connected with the end part of the rotating pin, one end of the tension spring is connected with the mounting seat, and the other end of the tension spring is connected with the pull rod.

In above-mentioned technical scheme, through the surface that extends to the mount pad with changeing the round pin, and set up the outside at the mount pad with the elasticity subassembly that resets, in order to avoid elasticity subassembly that resets contact thick liquids impaired, improve the durability of check valve, and still be convenient for observe changeing the round pin from the outside, the position of pull rod and extension spring, learn whether the baffle shelters from the pan feeding mouth, and observe whether the check valve still has the effect of one-way letting go, in order to maintain and change, and then guarantee defeated material transition mechanism can be stably, export thick liquids continuously.

In some embodiments of the present application, the apparatus body further includes a connecting pipe, the connecting pipe extends outwards from an edge of the material inlet along a direction perpendicular to a plane where the material inlet is located, and the mounting seat is connected to the connecting pipe.

In the technical scheme, the connecting pipe is arranged, so that the installation position is provided, the one-way valve is convenient to install, and the distance between the baffle and the separating part is increased. If the baffle is contradicted on the partition portion, probably lead to the baffle can't be promoted and rotate and open, through the distance between increase baffle and the partition portion to when the thick liquids first get into the baffle is blockked by the partition portion and can't open.

In some embodiments of the present application, the feeding transition mechanism further includes a stroke identification rod, the stroke identification rod is located at the second side of the partition, and one end of the stroke identification rod is connected to the partition and extends out of the device body.

In above-mentioned technical scheme, when the partition portion was moved by first side direction second side, the length that the stroke sign pole stretches out the device body increased, and when the partition portion was moved by second side direction first side, the length that the stroke sign pole stretches out the device body reduced, through setting up the stroke sign pole, can learn the removal condition of partition portion in accommodation space, and then learn the output condition of thick liquids, whether the defeated material transition mechanism normally worked of convenient follow outside observation.

In a second aspect, an embodiment of the present application provides a pumping device, which includes a plunger pump and the aforesaid material conveying transition mechanism, an output end of the plunger pump is connected to a material inlet of the material conveying transition mechanism.

The application provides a pumping device through setting up plunger pump and defeated material transition mechanism, has the effect of large-traffic ground, continuous, stable low output thick liquids.

In a third aspect, an embodiment of the present application provides a spraying apparatus, which includes:

the storage device is used for storing the slurry;

the spraying device is used for spraying the slurry on the working surface;

the pumping device is connected with the storing device and the spraying device so as to output the slurry stored in the storing device to the spraying device.

The application provides a spraying equipment, under pumping installations and spraying device's cooperation, spraying device is in succession to the working face with great flow spraying thick liquids, and work efficiency is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic perspective view of a spraying apparatus according to an embodiment of the present disclosure;

fig. 2 is a schematic perspective view illustrating a material conveying transition mechanism according to an embodiment of the present application;

fig. 3 is a schematic plan view illustrating a feeding transition mechanism according to an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4;

fig. 6 is a schematic view of an internal structure of a material conveying transition mechanism according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of an elastic resetting component according to an embodiment of the present application.

Icon: 1-a material storage device; 2-a pumping device; 21-a material conveying transition mechanism; 3-a material conveying pipeline; 4-a discharge pipeline; 100-a device body; 100 a-a first chamber; 100 b-a second cavity; 110-a cylindrical portion; 120-a first end plate; 121-a limiting bulge; 130-a second end plate; 140-connecting tube; 200-an elastic energy storage member; 210-a partition; 211-a piston; 212-a resilient plate; 213-a platen; 214-a sealing ring; 215-a guide ring; 220-an elastic portion; 230-an elastic tube; 240-elastomeric filling material; 300-a one-way valve; 310-a mount; 320-a baffle plate; 330-rotation pin; 340-an elastic reset component; 341-a pull rod; 342-a tension spring; 400-stroke identification rod; i, a feeding port; II-discharge port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

With the development of technology, the construction industry gradually changes from manual construction to mechanical and automatic construction, for example, in the plastering operation of building interior walls or floors, the manual construction is generally completed at present, but at present, spraying equipment is gradually adopted to replace manual work to spray paint to a working surface.

The spraying equipment is generally provided with a pumping device and a spray gun, slurry is output to the spray gun through the pumping device and is sprayed on a working surface through the spray gun, and the slurry spraying speed of the spray gun must be matched with the moving speed of the spray gun. The existing pumping device generally adopts a screw pump, and the screw pump has the characteristics that the feeding is stable and uniform, but the output flow is low, and the flow output of about 30L/min can be carried out in the limit condition, so that the slurry spraying speed is low, the moving speed of a spray gun is also reduced, and the working efficiency is low. In order to improve the working efficiency, a plunger pump is considered. The output flow of the plunger pump is large, the flow output of 70L/min can be realized, but the plunger pump is limited by the pumping mode, only slurry pumping and slurry discharging can be carried out firstly, intermittent feeding is carried out in a pulse mode, the slurry pumping pressure of the plunger pump is very large when slurry discharging is carried out, the pressure is almost zero when slurry pumping is carried out, the pulse type slurry output mode with the large pressure difference is applied to the slurry spraying process, almost no control is available, the slurry spraying speed of a spray gun cannot be matched with the moving speed of the spray gun, and effective spraying operation cannot be realized.

In view of the above, the present application provides a solution, a material conveying transition mechanism is disposed between a pumping device and a spray gun, the material conveying transition mechanism receives slurry output by the pumping device in each pulse, an elastic energy storage member is disposed in the material conveying transition mechanism, when receiving the slurry, the elastic energy storage member converts mechanical energy generated by slurry pumping pressure into elastic potential energy for storage, when the slurry pumping pressure disappears, the elastic potential energy storage member releases the elastic potential energy to continuously and stably output the slurry to the spray gun, thereby realizing large-flow, continuous and stable spraying, improving the slurry spraying speed of the spray gun, and improving the working efficiency without matching the slurry spraying speed by reducing the moving speed of the spray gun.

The application provides a defeated material transition mechanism not only is applicable to the spraying equipment for building, the equipment of the floating integrative of spraying, still is applicable to the thick liquids conveying equipment of other types, realizes that thick liquids are large-traffic ground, continuously, stably exported.

The following description will be made by taking a spray coating apparatus as an example.

As shown in fig. 1, the painting apparatus includes a stock device 1, a painting device (not shown in the drawing), and a pumping device 2. The storage device 1 is used for storing slurry, the spraying device is used for spraying the slurry on a working surface (such as a ground surface or a wall surface), and the pumping device 2 is connected with the storage device 1 and the spraying device so as to output the slurry stored in the storage device 1 to the spraying device.

Wherein the spray coating device comprises a spray gun.

The pumping device 2 comprises a plunger pump and a material conveying transition mechanism 21, the plunger pump is connected with the material storage device 1, and the material conveying transition mechanism 21 is connected between the plunger pump and the spray gun. Referring to fig. 1 and 2, the output end of the plunger pump is connected to the feeding port I of the material conveying transition mechanism 21 through the material conveying pipeline 3, and the discharge port II of the material conveying transition mechanism 21 is connected to the spray gun through the discharge pipeline 4.

Plunger pumps are characterized by a relatively large discharge (compared to screw pumps), but they discharge intermittently in a pulsed manner, resulting in an uneven discharge. Under the cooperation of the pumping device 2 and the spraying device, the plunger pump intermittently pumps out the slurry in the storage device 1 in a pulse mode and conveys the slurry to the material conveying transition mechanism 21, and the material conveying transition mechanism 21 temporarily stores the slurry pumped by the plunger pump and continuously and stably outputs the slurry to the spray gun, so that the slurry is continuously and rapidly sprayed to a working surface. Therefore, according to the spraying equipment provided by the application, under the matching of the pumping device 2 and the spraying device, the spraying device continuously sprays slurry to the working surface at a large flow rate, and the working efficiency is effectively improved.

In one embodiment, after the slurry is sprayed onto the work surface, it is also necessary to level the slurry so that the slurry sets on the work surface to form a flat surface. At present, the existing floating equipment solves the floating problem, and realizes mechanized operation through the double-machine combination of spraying equipment and floating equipment. However, due to respective working characteristics of the spraying equipment and the floating equipment, the problem of regulation and control matching exists in double-machine combined construction, the two equipment are mutually influenced during operation, the operation is independently completed by adopting a mode that the two equipment works successively sometimes, the two equipment are matched for operation sometimes by adopting a manual assistance mode, or the speed of the floating equipment is reduced, so that the operation speed of the floating equipment is consistent with the operation speed of the spraying equipment, the matching operation is facilitated, the operation can be completed in the existing mode, but the working efficiency is lower.

In view of this, the spraying device provided by the present application may further include a leveling device (not shown in the drawings), which is used for leveling the slurry on the working surface, in other words, the present application may further provide an integrated spraying and leveling machine; or the spraying equipment firstly sprays the slurry to the wall surface, and plastering equipment independent of the spraying equipment carries out plastering action. The spraying and plastering all-in-one machine is compared double-machine and unites (plastering unit and spraying equipment) operation, its floating device and shower nozzle device can both be high-speed, the operation continuously, floating device and shower nozzle device synchronization operation can, the regulation and control cooperation is convenient, high working efficiency, and compare that double-machine combined operation needs comparatively spacious operating space, the spraying and plastering all-in-one machine that this application provided only has a chassis, space has been saved, occupation space is little, be convenient for have enough to meet the need and the operation in narrow and small space.

In another embodiment, the spraying device of the present application may be used for spraying slurry such as putty, paint and the like, and the spraying device of the present application may be used in a spraying environment requiring stable slurry discharge, and will not be described herein again.

As shown in fig. 2, 3 and 4, the feeding transition mechanism 21 provided by the present application includes a device body 100 and an elastic energy storage member 200. The device body 100 is provided with an accommodating space, and the elastic energy storage member 200 is disposed in the accommodating space.

Wherein, accommodation space is equipped with pan feeding mouth I and discharge gate II, and pan feeding mouth I passes through the output of tube coupling plunger pump, and discharge gate II passes through the tube coupling spray gun.

The elastic energy storage member 200 is configured to be pressed and deformed by the pulp to store elastic potential energy when the pulp enters from the feeding port I, and to release the elastic potential energy to extrude the pulp from the discharging port II when the deformation is recovered.

In other words, initially, the accommodating space is occupied by the elastic energy storage member 200, when slurry enters from the feeding port I, the slurry presses the elastic energy storage member 200 under the action of slurry pumping pressure, and the elastic energy storage member 200 deforms to make room, so that a large amount of slurry can be accommodated in the accommodating space. After the primary slurry outlet process of the plunger pump is finished, the slurry pumping pressure disappears, the elastic energy storage piece 200 gradually recovers and deforms to release elastic potential energy so as to gradually extrude the slurry from the discharge hole II, so that the pulsed intermittent feeding is converted into continuous feeding, the large-flow continuous spraying can be realized, and the working efficiency is improved.

The working process of the material conveying transition mechanism 21 is as follows: the plunger pump intermittently pumps the slurry in the storage device 1 in a pulse mode and simultaneously conveys the slurry to the direction of the spraying device, the intermittent period duration is preset as t, in one period, the discharge time of the plunger pump is t1, the discharge quantity is Q, the non-discharge time is t2, wherein t1 plus t2 equals the period duration t, the capacity of the accommodating space of the material conveying transition mechanism 21 is Q1, during the discharging time of the plunger pump, the average discharging speed of the material conveying transition mechanism 21 is (Q-Q1)/t1, when the plunger pump is not discharging, the residual slurry in the accommodating space is extruded to the discharge port II through the elastic energy storage element 200 without pumping pressure and providing discharging power, the average discharge speed during this period is Q1/t2, and the elastic energy storage element and the receiving space of the application are configured such that (Q-Q1)/t1 is Q1/t 2.

One of the embodiments is described below: and if t1 is t2 is t/2, and Q1 is Q/2, the discharge amount of the plunger pump in the first t/2 cycle time is Q, and the plunger pump does not discharge in the later t/2 cycle time, the total discharge amount of the plunger pump in one cycle is Q. After the plunger pump is connected with the material conveying transition mechanism 21, in the first t/2 period time, the accommodating space stores the slurry of Q/2, in addition, the slurry of Q/2 is discharged at the speed with the average speed of (Q/2)/(t/2), that is, in the first t/2 period time, the plunger pump sends the slurry with the total amount of Q into the accommodating space of the material conveying transition mechanism 21, and the material conveying transition mechanism 21 simultaneously discharges at the speed of (Q/2)/(t/2), so after the first t/2 period time, the discharge amount of the material conveying transition mechanism 21 is Q/2, and the residual slurry amount in the accommodating space of the material conveying transition mechanism 21 is Q/2. In the later t/2 period, the plunger pump does not discharge, no slurry pumping pressure exists, no discharging power is provided, the residual slurry in the accommodating space is extruded to the discharge port II through the elastic energy storage part 200, and in the period, the material conveying transition mechanism 21 discharges at the average speed of (Q/2)/(t/2), so that the discharging speeds of the material conveying transition mechanism 21 in the first half period and the second half period are basically consistent, and the stable discharging in the whole period is realized.

Certainly, the specification and size of plunger pump are different, can lead to ejection of compact time t1 and not ejection of compact time t2 also can be different, and the adaptation can be made according to different plunger pumps to defeated material transition mechanism 21 elastic energy storage spare and accommodation space of this application to make the ejection of compact speed in the time of ejection of compact and the ejection of compact speed of the time of not ejection of compact roughly equal.

There are various configurations of the elastic energy storage member 200 and the device body 100.

As shown in fig. 2, 3 and 4, the apparatus body 100 is configured to include a cylindrical portion 110, a first end plate 120 and a second end plate 130, the first end plate 120 is connected to one end of the cylindrical portion 110, the second end plate 130 is connected to the other end of the cylindrical portion 110, and the cylindrical portion 110, the first end plate 120 and the second end plate 130 together enclose an accommodation space.

The elastic energy storage member 200 includes a partition 210 and an elastic portion 220. The partition 210 serves to partition the accommodation space, and the elastic part 220 connects the partition 210 and the device body 100 for storing and releasing elastic potential energy.

The partition 210 is shaped to fit the cylindrical portion 110 and is movable in the cylindrical portion 110. The partition 210 partitions the accommodating space into a first chamber 100a and a second chamber 100b, the first chamber 100a is located at a first side of the partition 210, the second chamber 100b is located at a second side of the partition 210, the first side is opposite to the second side, and the first chamber 100a and the second chamber 100b are not communicated with each other. That is, the first chamber 100a and the second chamber 100b are isolated from each other by the partition 210, and when the partition 210 moves, the first chamber 100a and the second chamber 100b cancel each other.

The feeding port I and the discharging port II are both configured to communicate with the first chamber 100a, and when the slurry enters the first chamber 100a, the pushing partition 210 moves from the second side to the first side, the space of the first chamber 100a increases, and the space of the second chamber 100b decreases.

Alternatively, the elastic part 220 may be located at a first side of the partition 210, i.e., in the first chamber 100a, and connect the partition 210 and the inner wall of the first chamber 100 a. When the partition 210 is pushed toward the second side by the slurry, the elastic part 220 is strained to store elastic potential energy.

In this embodiment, the elastic portion 220 is located at the second side of the partition portion 210, i.e. in the second cavity 100b, one end of the elastic portion 220 abuts against the device body 100, the other end of the elastic portion 220 abuts against the partition portion 210, and when the partition portion 210 is pushed to the second side by the slurry, the elastic portion 220 is pressed and deformed to store elastic potential energy.

The partition part 210 is pushed to stretch or compress the elastic part 220 to store elastic potential energy, the deformation direction of the elastic part 220 is consistent with the moving direction of the partition part 210, the moving paths of the partition part 210 and the elastic part 220 are clear, the work is stable, and continuous and stable output of slurry is facilitated.

Also, by setting the deformable stroke of the elastic part 220, for example, replacing the elastic part 220 of different specifications, the maximum storage amount, that is, the maximum capacity of the first chamber 100a, can be adjusted. According to the single pulse output quantity of the pumping device 2, the elastic parts 220 with different deformation strokes are configured, and the maximum storage quantity is adjusted, so that the slurry in the material conveying transition mechanism 21 is supplemented before being completely output, and continuous discharging is ensured.

In addition, when the elastic part 220 is positioned in the second chamber 100b, the elastic part 220 does not contact the paste, so that the elastic part 220 is not easily corroded and contaminated, thereby improving the durability of the elastic part 220.

The elastic portion 220 may be formed of a metal spring, an elastic rubber, an air cushion, or the like, and a nitrogen spring is used in the embodiment of the present invention. The nitrogen spring has the characteristics of small volume, large elasticity, long stroke, stable work and long service life, and the elastic part 220 is set as the nitrogen spring, so that the whole structure of the material conveying transition mechanism 21 is more compact, the process of releasing the elastic potential energy by the nitrogen spring is more stable, and the nitrogen spring is favorable for continuously and stably outputting the slurry.

To ensure the smoothness of the movement of the partition 210 and the continuous and stable discharge, the partition 210 is configured to include a piston 211 and a sealing assembly.

Alternatively, the inner cavity of the cylindrical structure is cylindrical, i.e. the receiving space is cylindrical, and the piston 211 is cylindrical.

Under the action of the pumping pressure and the elastic force, the piston 211 moves back and forth along the axial direction of the accommodating space, so that the pulse type slurry accommodating and the continuous type slurry output are realized.

The sealing assembly blocks the slurry from entering the second chamber 100b through a gap between the piston 211 and the inner wall of the accommodating space, the slurry is prevented from leaking to the second chamber 100b by the sealing assembly, the slurry is stably output to the discharge port II, the elastic part 220 is prevented from contacting the slurry to be damaged by the sealing assembly, the durability of the elastic part 220 is prolonged, and the elastic part 220 is ensured to provide enough elastic force to drive the piston 211 so as to output the slurry.

Alternatively, as shown in fig. 4 and 5, the sealing assembly includes an elastic plate 212 and a pressing plate 213, the elastic plate 212 is located between the pressing plate 213 and the piston 211, the pressing plate 213 is connected with the piston 211 to press the elastic plate 212, and an outer circumferential surface of the elastic plate 212 is in close contact with an inner wall of the receiving space.

As shown in fig. 5, the elastic plate 212 and the pressing plate 213 are located on the first side of the partition, the elastic plate 212 may be an elastic rubber plate, the pressing plate 213 may be a hard plastic plate, a stainless steel plate, or the like, the elastic plate 212 is fixed on the end surface of the piston 211 through the pressing plate 213, and the inner wall of the accommodating space presses the outer circumferential surface of the elastic plate 212 to form an annular sealing area, thereby achieving the function of sealing and isolating to limit the slurry from passing through the gap between the piston 211 and the inner wall of the accommodating space.

In the process that the partition 210 moves from the second side to the first side under the pushing of the elastic portion 220, the elastic plate 212 can also scrape off the slurry on the inner wall of the accommodating space, so as to prevent the slurry from hanging on the wall, and the slurry can be output as far as possible.

The elastic plate 212 scrapes the slurry on the inner wall of the receiving space and also prevents the residual slurry from existing on the second side of the partition 210, so that the elastic part 220 and the piston 211 are not corroded and contaminated to be damaged. In addition, no slurry exists between the piston 211 and the inner wall of the accommodating space, so that the piston 211 is prevented from being abraded by particles in the slurry when moving, the friction force of the movement of the piston 211 is reduced, the movement is prevented from being interfered, the piston 211 can smoothly move in the accommodating space, and the slurry is stably and continuously output.

Optionally, as shown in fig. 4 and 5, the sealing assembly further includes a sealing ring 214, and the sealing ring 214 is sleeved on the outer circumferential surface of the piston 211. By providing the sealing ring 214 on the outer circumferential surface of the piston 211, the piston 211 and the inner wall of the receiving space cooperate to compress the sealing ring 214 to form an annular sealing area, thereby improving the sealing and isolating effect of the partition 210, preventing the slurry from leaking to the second side of the partition 210, and ensuring that the slurry is stably and continuously output from the discharge port II.

In some embodiments, as shown in fig. 4 and 5, the partition 210 further includes a guide ring 215, the guide ring 215 is disposed on the outer circumferential surface of the piston 211, and the guide ring 215 protrudes from the outer circumferential surface of the piston 211 in a radial direction of the body of the piston 211.

The guide ring 215 is made of hard material, such as metal material, such as stainless steel, copper, alloy, etc., or hard polymer resin material, such as teflon, etc.

The guide ring 215 and the piston 211 may be a split structure, that is, after the guide ring 215 and the piston 211 are respectively molded, the guide ring 215 is sleeved on the outer circumferential surface of the piston 211. The guide ring 215 and the piston 211 may be integrally formed, for example, the guide ring 215 is formed on the piston 211 and the outer circumferential surface thereof by one-step molding, or the guide ring 215 is formed on the outer portion of the piston 211 by cutting or the like to protrude from the outer circumferential surface thereof.

By arranging the guide ring 215 on the outer circumferential surface of the piston 211, the piston 211 contacts the inner wall of the accommodating space through the guide ring 215, the contact area of the piston 211 and the accommodating space is reduced, the friction area when the piston 211 moves is reduced, the friction force is reduced, and the piston 211 can smoothly move in the accommodating space, so that stable and continuous slurry output is ensured.

In the embodiment of the present application, the material inlet I and the material outlet II are disposed on the device body 100, as shown in fig. 4, the material inlet I and the material outlet II are disposed on the first end plate 120.

In other embodiments, the feeding port I and the discharging port II may also be disposed on the partition 210, and a through hole is disposed on the second end plate, so as to connect the external pipeline to the feeding port I and the discharging port II through the through hole respectively; or the second end plate 130 is eliminated to open one end of the cylindrical part 110 and to connect external pipes to the inlet port I and the outlet port II.

The material inlet I and the material outlet II may be disposed in the apparatus body 100, and the other may be disposed in the partition 210.

In this embodiment, through all setting up pan feeding mouth I and discharge gate II on device body 100 for the pipe connection who connects pumping installations 2 and spray gun is on device body 100, and not connect on elasticity energy storage 200, has simplified the structure and the function of elasticity energy storage 200, makes elasticity energy storage 200 simple structure, job stabilization, and elasticity energy storage 200 is the movable part, is convenient for damage, so sets up still is convenient for change elasticity energy storage 200.

When the plunger pump stops discharging slurry, the slurry generally flows out from the discharge port II under the action of the spray gun and is not easy to flow back to the feeding port I. To solve this problem, a check valve 300 is optionally provided at the inlet I to prevent backflow of the slurry and ensure stable and continuous output of the slurry.

As shown in fig. 3, 4 and 6, the check valve 300 includes a mounting seat 310, a flapper 320, a pivot pin 330 and a resilient return assembly 340.

The mounting base 310 is connected to the apparatus body 100, and an opening is formed on the mounting base 310 and corresponds to the feeding port I.

The shutter 320 is connected to the mounting base 310 by a rotating pin 330, and when the shutter 320 covers the opening on the mounting base 310, the closing of the material inlet I is achieved.

The elastic reset assembly 340 is used for driving the baffle 320 to close the feeding port I. In some embodiments, the elastic restoring assembly 340 may be configured as a torsion spring, the torsion spring is sleeved on the rotating pin 330, and two ends of the torsion spring are respectively connected to the mounting seat 310 and the baffle 320; alternatively, the elastic restoring assembly 340 may be configured as a tension spring 342, and both ends of the tension spring 342 are respectively connected to the mounting seat 310 and the blocking plate 320.

In this embodiment, referring to fig. 6 again, the elastic restoring component 340 includes a pull rod 341 and a tension spring 342.

The end of the pivot pin 330 extends to the outer surface of the mount 310. In other words, the opening of the mounting seat 310 forms an inner surface, the inner surface surrounds the opening of the mounting seat 310, the rotating pins 330 are respectively connected to two sides of the baffle plate 320, and the rotating pins 330 penetrate through the inner surface and extend out to the outer surface of the mounting seat 310.

The pulling rod 341 is fixedly connected to the end of the rotating pin 330, so that the pulling rod 341, the rotating pin 330 and the shutter 320 rotate synchronously.

One end of the tension spring 342 is connected with the mounting seat 310, and the other end of the tension spring 342 is connected with the pull rod 341. When the slurry pushes the baffle 320 to enter, the rotating pin 330 is driven to rotate, the pull rod 341 swings, the tension spring 342 is stretched, after the plunger pump out the slurry, the tension spring 342 is deformed again, the pull rod 341 is pulled back to the original position, and the rotating pin 330 drives the baffle 320 to cover the opening on the mounting seat 310 again to seal the feeding port I.

By extending the rotating pin 330 to the outer surface of the mounting seat 310 and disposing the elastic reset assembly 340 outside the mounting seat 310, on one hand, the elastic reset assembly 340 is prevented from contacting the slurry and being damaged, and the durability of the check valve 300 is improved; on the other hand, it is convenient to observe the positions of the rotating pin 330, the pull rod 341 and the tension spring 342 from the outside, to know whether the baffle 320 blocks the feeding port I, and to observe whether the check valve 300 has the function of one-way release, so as to facilitate maintenance and replacement, and further ensure that the material conveying transition mechanism 21 can stably and continuously output the slurry.

In addition, considering that the baffle 320 abuts against the partition 210 in the initial state, that is, before the slurry enters the material conveying transition mechanism 21 for the first time, which may result in that the baffle 320 cannot be rotated to open, as shown in fig. 3, 4 and 6, the apparatus body 100 is provided with a connecting pipe 140 for connecting the mounting seat 310 to increase the distance between the baffle 320 and the partition 210, so as to prevent the baffle 320 from being blocked by the partition 210 and being unable to open when the slurry enters for the first time.

As shown in fig. 3 and 4, the connection pipe 140 extends outward from the edge of the inlet I in a direction perpendicular to the plane of the inlet I. That is, the feeding port I is opened in the first end plate 120, the connecting pipe 140 is connected to the first end plate 120, and the opening of the connecting pipe 140 covers the feeding port I.

By providing the connection pipe 140, it is ensured that the slurry can push the baffle 320 away to enter the connection pipe 140, and then the slurry can directly act on the partition 210 and push the partition 210 to compress the elastic part 220.

In addition, the distance between the mounting seat 310 and the first end plate 120 is increased, and a space is provided for the installation and the movement of the tension spring 342 and the pull rod 341.

In some embodiments, a limiting protrusion 121 is formed on a surface of the first end plate 120 facing the partition 210, and the limiting protrusion 121 prevents the baffle 320 from being blocked by the partition 210 and being unable to rotate to open. In addition, the limiting protrusion 121 also limits the partition 210 and the first end plate 120 to be completely attached tightly, so that the partition 210 and the first end plate 120 are prevented from being adhered together by residual slurry.

In some embodiments, the feeding transition mechanism 21 further includes a stroke indicator rod 400, the stroke indicator rod 400 is located at a second side of the partition 210, and one end of the stroke indicator rod 400 is connected to the partition 210 and extends out of the device body 100.

As shown in fig. 4, the stroke indication rod 400 is parallel to the cylindrical portion 110, and when the partition portion 210 moves from the first side to the second side, the length of the stroke indication rod 400 extending out of the apparatus body 100 increases, and when the partition portion 210 moves from the second side to the first side, the length of the stroke indication rod 400 extending out of the apparatus body 100 decreases.

Through setting up stroke sign pole 400, can know the position that partition 210 is located in accommodation space, obtain the removal condition of partition 210, and then know the output condition of thick liquids, whether convenient defeated material transition mechanism 21 of observing from the outside normally works.

In other embodiments of the present application, wicking transition mechanism 21 may be configured in other configurations.

For example, the elastic energy storage member 200 is configured as an elastic membrane member edge-connected to the device body 100, and stores and releases elastic potential energy by the elastic membrane member.

For another example, as shown in fig. 7, an accommodating space is formed inside the apparatus body 100, the elastic energy storage member 200 includes an elastic pipeline 230 disposed in the accommodating space, the material inlet I and the material outlet II are respectively disposed at two ends of the apparatus body 100, one end of the elastic pipeline 230 is connected to the material inlet I, and the other end of the elastic pipeline 230 is connected to the material outlet II.

The elastic pipeline 230 is in a contracted state in a natural state, the interval between the elastic pipeline 230 and the inner wall of the accommodating space is large, and the diameter of the middle part of the elastic pipeline is smaller than that of the feeding port I.

When the plunger pump discharges slurry, the slurry flows into the elastic pipeline 230 from the feeding port I, and the pipe wall of the elastic pipeline 230 is pressed, so that the pipe wall of the elastic pipeline 230 is expanded towards the inner wall of the accommodating space, and the interval between the elastic pipeline 230 and the inner wall of the accommodating space is reduced. When the plunger pump stops discharging the slurry, the pressure of the slurry pump disappears, the elastic pipeline 230 recovers to deform, and the pipe diameter is gradually reduced, so that the slurry is extruded from the discharge port II.

Optionally, as shown in fig. 7, the elastic energy storage member 200 further includes an elastic filling material 240, the elastic filling material 240 is filled between the elastic energy storage member 200 and the inner wall of the accommodating space, when the slurry enters the elastic pipe 230, the pipe wall of the elastic pipe 230 expands, the elastic filling material 240 is compressed, the elastic pipe 230 and the elastic filling material 240 together store elastic potential energy, and after the slurry pumping pressure disappears, the elastic potential energy is released together to extrude the slurry out of the discharge outlet II.

The resilient filling material 240 may be selected from loose, highly resilient rubber balls.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A defeated material transition mechanism, its characterized in that includes:

2. The transition conveyor mechanism of claim 1, wherein said elastic energy storage member comprises:

3. The transition mechanism of claim 2, wherein the resilient portion is disposed in the second cavity, one end of the resilient portion abuts against the device body, and the other end of the resilient portion abuts against the partition.

4. The transition delivery mechanism of claim 2, wherein said resilient portion comprises a nitrogen spring.

5. The transition mechanism of claim 2, wherein the partition comprises a piston movably disposed in the receiving space and a sealing assembly for sealing between the piston and an inner wall of the receiving space.

6. The transition mechanism of claim 5, wherein the sealing assembly comprises a resilient plate and a pressing plate, the resilient plate is located between the pressing plate and the piston, the pressing plate is connected to the piston to press the resilient plate, and the outer peripheral surface of the resilient plate is in close contact with the inner wall of the receiving space.

7. The transition mechanism of claim 5, wherein the sealing assembly further comprises a sealing ring, and the sealing ring is disposed on the outer circumferential surface of the piston.

8. The transition mechanism of claim 5, wherein the partition further comprises a guide ring disposed on the outer circumferential surface of the piston, the guide ring protruding from the outer circumferential surface of the piston in the radial direction of the piston body.

9. The transition conveyor mechanism of claim 2, wherein said inlet is disposed in said device body, said inlet being provided with a one-way valve.

10. The material conveying transition mechanism of claim 9, wherein the check valve comprises a mounting seat, a baffle, a rotating pin and an elastic return component, the mounting seat is connected to the device body, the baffle is connected to the mounting seat through the rotating pin and covers the feeding port, and the elastic return component is used for driving the baffle to close the feeding port.

11. The transition delivery mechanism of claim 10, wherein the end of said pivot pin extends to the outer surface of said mounting seat; the elastic reset assembly comprises a pull rod and a tension spring, the pull rod is fixedly connected with the end part of the rotating pin, one end of the tension spring is connected with the mounting seat, and the other end of the tension spring is connected with the pull rod.

12. The material transfer mechanism of claim 10, wherein said device body further comprises a connecting tube extending outwardly from an edge of said inlet in a direction perpendicular to a plane of said inlet, said mounting seat being connected to said connecting tube.

13. The transition conveyor mechanism of claim 2, further comprising a travel marker bar located on the second side of the partition, wherein one end of the travel marker bar is connected to the partition and extends out of the device body.

14. A pumping apparatus comprising a plunger pump and a transition means as claimed in any one of claims 1 to 13, wherein the output of said plunger pump is connected to the inlet of said transition means.

15. A spray coating device, comprising:

the storage device is used for storing the slurry;

the spraying device is used for spraying the slurry on the working surface;

the pumping device according to claim 14, connecting the stock device and the spraying device to output the slurry stored in the stock device to the spraying device.