Investment casting silica sol coating distribution device

Abstract

The utility model discloses an investment casting silica sol coating distribution device which comprises a bottom plate, a distribution mechanism used for distributing coating is arranged at the upper end of the bottom plate, the distribution mechanism comprises a conveying pipe, a storage bin, a connecting port, a pushing piston, a sliding groove, a rack and a gear, the conveying pipe is fixedly arranged on one side of the upper end of the bottom plate, and the storage bin is fixedly arranged on one side of the lower end of the bottom plate. A storage bin is arranged at the upper end of the conveying pipe, a connecting opening is fixedly formed between the conveying pipe and the storage bin, a pushing piston is movably arranged in the conveying pipe in a clamped mode, a sliding groove is formed in the surface of the upper end of the bottom plate, and a rack is movably arranged in the sliding groove in a clamped mode through a sliding block; and one side of the surface of the pushing piston is fixedly connected with the rack, a gear is movably arranged at the upper end of the bottom plate through a rotating shaft, and the gear and the rack are meshed with each other. Viscous paint is conveyed through extrusion, blocking is not prone to occurring, the conveying effect is good, meanwhile, linkage conveying is achieved, extrusion feeding is conducted at the two ends alternately, and the material conveying efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of distribution device technology, specifically a distribution device for investment casting silica sol coating. Background Technology

[0002] Silica sol coatings used in the investment casting industry are made by mixing silica sol adhesive, quartz powder or mullite powder and other additives in a certain proportion. They are high-viscosity coatings that are easy to settle and have poor flowability. If they are not stirred within a short period of time after preparation, they will solidify and become unusable.

[0003] In existing technologies, it is difficult and inefficient to deliver such high-viscosity, easily sedimented, and poorly fluid coatings using traditional pumps. Therefore, an improved investment casting silica sol coating delivery device is needed to address this issue. Utility Model Content

[0004] The purpose of this invention is to provide a silica sol coating delivery device for investment casting to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a distribution device for investment casting silica sol coating, comprising a base plate, wherein a distribution mechanism for distributing coating is provided at the upper end of the base plate, the distribution mechanism comprising a conveying pipe, a storage bin, a connecting port, a push piston, a slide groove, a rack, and a gear, wherein a conveying pipe is fixedly provided on one side of the upper end of the base plate, a storage bin is provided at the upper end of the conveying pipe, a connecting port is fixedly provided between the conveying pipe and the storage bin, a push piston is movably engaged inside the conveying pipe, a slide groove is provided on the upper surface of the base plate, a rack is movably engaged inside the slide groove via a slider, one side of the surface of the push piston is fixedly connected to the rack, and a gear is movably provided on the upper end of the base plate via a rotating shaft.

[0006] Preferably, an electric push rod is fixedly installed on one side of the upper end of the base plate. The movable end of the electric push rod is fixedly connected to the rack. The extension and retraction of the electric push rod can push the rack and the push piston to move.

[0007] Preferably, a one-way valve is fixedly installed on the side of the delivery pipe away from the rack. A valve plate is movably installed inside the one-way valve via a rotating shaft. The one-way valve ensures the flow direction of the paint and prevents the paint from being pushed from one side of the delivery pipe into the other side.

[0008] Preferably, a connecting pipe is fixedly provided on one side of the one-way valve surface, through which the coating can be transported to a designated location.

[0009] Preferably, the one-way valve surface is provided with a sealing cap by a threaded engagement. The sealing cap allows for easy rinsing of the inside of the one-way valve after each paint delivery, when cleaning of the delivery pipe and the inside of the one-way valve is required, to prevent residual paint from solidifying inside the one-way valve.

[0010] Preferably, the gear and rack mesh with each other. This device links the two racks through the gear, so that when one push piston moves backward, the other push piston moves forward automatically. This linkage conveying, with alternating compression and feeding at both ends, can improve the efficiency of material conveying.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a reciprocating piston to continuously push the coating material for transport. When the piston moves closer to the one-way valve, it can push the material inside the conveying pipe out. When the piston moves away from the one-way valve and moves to the rear of the connection port, the material inside the storage chamber will be replenished into the conveying pipe under the action of gravity. This reciprocating method of the device can achieve a good conveying effect for viscous materials.

[0013] When in use, this utility model uses gears to link two racks, so that when one push piston moves backward, the other push piston moves forward automatically. This linkage of material conveying, with alternating compression and feeding from both ends, can improve the efficiency of material conveying. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a silica sol coating delivery device for investment casting according to this utility model;

[0015] Figure 2 This is a cross-sectional view of a silica sol coating delivery device for investment casting according to the present invention. Figure 1 ;

[0016] Figure 3 This is a cross-sectional view of a silica sol coating delivery device for investment casting according to the present invention. Figure 2 .

[0017] In the diagram: 1. Base plate; 2. Conveying pipe; 3. Storage bin; 4. Connection port; 5. Push piston; 6. Slide groove; 7. Rack; 8. Gear; 9. Electric push rod; 10. Check valve; 11. Valve plate; 12. Connecting pipe; 13. Sealing cover. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a distribution device for investment casting silica sol coating, including a base plate 1. A distribution mechanism for distributing coating is provided on the upper end of the base plate 1. The distribution mechanism includes a conveying pipe 2, a storage bin 3, a connecting port 4, a pushing piston 5, a slide groove 6, a rack 7, and a gear 8. The conveying pipe 2 is fixedly provided on one side of the upper end of the base plate 1. The storage bin 3 is provided on the upper end of the conveying pipe 2. A connecting port 4 is fixedly provided between the conveying pipe 2 and the storage bin 3. The pushing piston 5 is movably engaged inside the conveying pipe 2. A slide groove 6 is provided on the upper surface of the base plate 1. A rack 7 is movably engaged inside the slide groove 6 via a slider. One side of the surface of the pushing piston 5 is fixedly connected to the rack 7. A gear 8 is movably arranged on the upper end of the base plate 1 via a rotating shaft.

[0020] An electric push rod 9 is fixedly installed on one side of the upper end of the base plate 1. The movable end of the electric push rod 9 is fixedly connected to the rack 7. The rack 7 and the push piston 5 can be moved by the extension and retraction of the electric push rod 9.

[0021] A one-way valve 10 is fixedly installed on the side of the conveying pipe 2 away from the rack 7. A valve plate 11 is movably installed inside the one-way valve 10 through a rotating shaft. The one-way valve 10 ensures the flow direction of the paint to prevent the paint from being pushed from one side of the conveying pipe 2 into the other side of the conveying pipe 2.

[0022] A connecting pipe 12 is fixedly provided on one side of the surface of the one-way valve 10, through which the paint can be transported to a designated location;

[0023] The surface of the one-way valve 10 is provided with a sealing cap 13 by means of a threaded engagement. The sealing cap 13 allows for easy rinsing of the inside of the one-way valve 10 after each coating delivery, when it is necessary to clean the delivery pipe 2 and the inside of the one-way valve 10, so as to prevent residual coating from solidifying inside the one-way valve 10.

[0024] The gear 8 and rack 7 mesh with each other. This device links the two racks 7 together through the gear 8, so that when one push piston 5 moves backward, the other push piston 5 moves forward automatically. This linkage conveys material, and the two ends alternately squeeze and feed material, which can improve the efficiency of material conveying.

[0025] Working principle: When using this device, the piston reciprocates and pushes continuously to transport the coating. When the piston moves towards the one-way valve 10, it can push the material inside the conveying pipe 2 to be squeezed out. When the piston moves away from the one-way valve 10 and moves to the rear of the connection port 4, the material inside the storage bin 3 will be replenished into the conveying pipe 2 under the action of gravity. In this reciprocating motion, the device can achieve a good conveying effect for viscous materials.

[0026] When this device is conveying materials, the rear end of the push piston 5 must not be moved to the connection port 4 to prevent materials from entering behind the push piston 5.

[0027] Furthermore, when this device is in use, the two racks 7 are linked by the gear 8, so that when one push piston 5 moves backward, the other push piston 5 is automatically linked to move forward. This linkage conveys material, and the two ends alternately squeeze and feed the material, which can improve the efficiency of material conveying.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silica sol coating dispensing device for investment casting, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is provided with a delivery mechanism for distributing paint. The delivery mechanism includes a conveying pipe (2), a storage bin (3), a connection port (4), a push piston (5), a chute (6), a rack (7), and a gear (8). The conveying pipe (2) is fixedly provided on one side of the upper end of the base plate (1). The storage bin (3) is provided on the upper end of the conveying pipe (2). The connection port (4) is fixedly provided between the conveying pipe (2) and the storage bin (3). The push piston (5) is movably engaged inside the conveying pipe (2). The chute (6) is opened on the upper surface of the base plate (1). The rack (7) is movably engaged inside the chute (6) by a slider. One side of the surface of the push piston (5) is fixedly connected to the rack (7). The gear (8) is movably provided on the upper end of the base plate (1) by a rotating shaft.

2. The investment casting silica sol coating delivery device according to claim 1, characterized in that: An electric push rod (9) is fixedly installed on one side of the upper end of the base plate (1), and the movable end of the electric push rod (9) is fixedly connected to the rack (7).

3. The investment casting silica sol coating delivery device according to claim 1, characterized in that: A one-way valve (10) is fixedly installed on the side of the conveying pipe (2) away from the rack (7), and a valve plate (11) is movably installed inside the one-way valve (10) via a rotating shaft.

4. The investment casting silica sol coating delivery device according to claim 3, characterized in that: A connecting pipe (12) is fixedly installed on one side of the surface of the one-way valve (10).

5. The investment casting silica sol coating delivery device according to claim 3, characterized in that: The one-way valve (10) has a sealing cap (13) screwed onto its surface by means of a threaded connection.

6. The investment casting silica sol coating delivery device according to claim 1, characterized in that: The gear (8) meshes with the rack (7).

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