Sand core manufacturing flow coating device
By designing a sand core casting and coating device, the continuity and uniformity of sand core coating were achieved, solving the problem of low coating efficiency in the existing technology, improving production efficiency and reducing costs.
Patent Information
- Application Number
- CN202423208344.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing technologies, it is difficult to ensure uniformity and continuity in the core coating process, resulting in low production efficiency.
A sand core forming flow coating device was designed, including a core forming mechanism and a flow coating mechanism. Through the cooperation of a sand mixing component and a forming component, automated coating is achieved using a flow coating pipe and a return tank. Different types of coatings can be selected for coating according to the forming requirements, and the coating is precisely controlled by a drive motor and a pump.
It achieves continuity and uniformity in sand core coating, improves production efficiency, reduces coating waste, lowers production costs, and meets the coating performance requirements of different castings.
Smart Images
Figure CN223670178U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sand core manufacturing technical field especially relates to a sand core core making flow coating device. BACKGROUND
[0002] The sand core of the mold is the key component for making the internal cavity or complex shape of the casting, such as hole, cavity, etc. in the casting industry, and its material is usually sand-like substance, such as quartz sand, natural gypsum, etc. with the advantages of high temperature resistance, easy processing and forming complex structure, etc.
[0003] The general production process of the sand core is as follows: based on the bonding effect between the sand particles, quartz sand is used as the main material, and appropriate amount of water and water glass, resin and other bonding agents are added, and after mixing uniformly, it is filled into the core box to form the required shape, and after the bonding agent is solidified, the hardened sand core is obtained. However, after the core making is completed, due to the pores between the sand particles, the metal liquid is easy to penetrate in the use process, and it is necessary to coat the surface of the sand core blank with paint to improve the surface quality. In the related technology, manual coating is relied on, it is difficult to ensure the uniformity and quality of the coating, and different materials need to be coated according to different molding requirements, it is difficult to realize the continuous automatic classification coating process, and the production efficiency is low.
[0004] The information disclosed in this background section is only intended to enhance the understanding of the general background technology of the utility model, and should not be regarded as recognition or in any form as implying that this information constitutes the prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL
[0005] The technical problem to be solved by the utility model is to provide a sand core core making flow coating device to ensure the continuity and uniformity of the sand core coating after sand making and improve the production efficiency.
[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is: a sand core core making flow coating device, which comprises a core making mechanism and a flow coating mechanism arranged in sequence along the sand core production direction,
[0007] The core making mechanism is used for receiving raw materials and making sand core blanks, which comprises a sand mixing assembly and a forming assembly, the sand mixing assembly comprises a sand mixer, and the forming assembly comprises a plurality of core making molds, and the sand outlet of the sand mixer is arranged towards the core making molds;
[0008] The flow coating mechanism is used for receiving the sand core blanks and coating the surface of the sand core blanks with paint, which comprises at least two groups of parallel arranged coating assemblies, each group of the coating assemblies comprises a flow coating pipeline and a reflux tank, different kinds of paint are arranged in the two flow coating pipelines respectively, and the sand core blanks are arranged in the corresponding reflux tanks according to the molding requirements.
[0009] Further, the flow coating pipeline is provided with discharge ports, the number of the discharge ports is equal to the number of the return flow grooves in the corresponding coating assembly, and each discharge port is arranged towards the return flow groove.
[0010] Further, the side wall of the bottom of the return flow groove is provided with a return flow port, and the end of the flow coating pipeline away from the discharge port is provided with a feeding port, which is arranged in communication with the return flow port.
[0011] Further, the flow coating pipeline is provided with a liquid storage groove, the coating is arranged in the liquid storage groove, and the liquid storage groove is arranged in communication with the discharge port.
[0012] Further, each group of the coating assembly further comprises a driving motor and a pump body, which are connected with each other and located between the feeding port and the liquid storage groove.
[0013] Further, the bottom and the side wall of the return flow groove are provided with reinforcing plates, which are arranged vertically and side by side along the transverse direction and the longitudinal direction.
[0014] Further, the sand mixer comprises a sand mixing bin, a transfer arm and a driving part, the driving part is arranged inside the transfer arm, and the transfer arm is arranged rotatably between the sand mixing bin and a core making area.
[0015] Further, the core making area comprises a large core making area and a small core making area, a plurality of core making molds are arranged in the large core making area and the small core making area respectively, the small core making area is arranged separately from the large core making area, and the small core making area is arranged close to one side of the flow coating mechanism.
[0016] Further, the sand mixing assembly further comprises a plurality of aggregate bins, the aggregate bins are arranged at the inlet of the sand mixing bin, and each aggregate bin is arranged with one kind of raw material.
[0017] Further, the sand mixing assembly further comprises a conveying belt, the conveying belt is located on the side of the aggregate bin away from the sand mixing bin, and is arranged in butt joint with the aggregate bin.
[0018] The automatic core making and flow coating device can realize continuous core making and coating process, improve production efficiency, and quickly and efficiently obtain sand core blanks through the cooperation of the sand mixing assembly and the forming assembly, so that the subsequent coating operation of surface coating can be facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 It is a structure schematic view of the sand core making flow coating device in the embodiment of the present application.
[0021] Figure 2 It is a structure schematic view of the flow coating mechanism in the embodiment of the present application.
[0022] Figure 3 It is a structure schematic view of the backflow tank in the embodiment of the present application.
[0023] Figure 4 It is a structure schematic view of the flow coating pipeline in the embodiment of the present application.
[0024] Figure 5 It is a structure schematic view of the sand mixer in the embodiment of the present application.
[0025] The drawings show that: 10, core making mechanism; 11, sand mixing assembly; 111, sand mixer; 111a, sand mixing bin; 111b, transfer arm; 111c, driving part; 112, material collecting bin; 113, conveying belt; 12, forming assembly; 121, core making mold; 122a, large core making area; 122b, small core making area; 20, flow coating mechanism; 20a, coating assembly; 21, flow coating pipeline; 21a, discharge port; 21b, feeding port; 21c, liquid storage tank; 22, backflow tank; 22a, backflow port; 22b, reinforcing plate; 23, driving motor; 24, pump body. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments.
[0027] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right" and similar expressions as used herein are for illustration only and are not meant to be limiting.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0029] like Figures 1 to 5 The shown core-making and coating apparatus includes a core-making mechanism 10 and a coating mechanism 20 arranged sequentially along the core production direction.
[0030] The core-making mechanism 10 is used to receive raw materials and make sand core blanks. It includes a sand mixing component 11 and a molding component 12. The sand mixing component 11 includes a sand mixer 111, and the molding component 12 includes a plurality of core-making molds 121. The sand outlet of the sand mixer 111 is set towards the core-making mold 121.
[0031] The flow coating mechanism 20 is used to receive the sand core blank and apply coating to the surface of the sand core blank. It includes at least two sets of coating components 20a arranged in parallel. Each set of coating components 20a includes a flow coating pipe 21 and a return groove 22. Different types of coatings are respectively provided in the two flow coating pipes 21. The sand core blank is placed in the corresponding return groove 22 according to the molding requirements.
[0032] This invention, by setting up an automated core-making and flow coating device, can realize a continuous core-making and coating process, thereby improving production efficiency. Through the cooperation of the sand mixing component 11 and the forming component 12, sand core blanks can be obtained quickly and efficiently, which facilitates the subsequent surface coating operation. Through the flow coating pipe 21 and the return tank 22, the corresponding coating can be selected for coating according to different forming requirements, which greatly improves the coating efficiency and can meet the coating performance requirements of different castings.
[0033] During the process, raw materials such as quartz sand and binder are first added to the sand mixer 111 for mixing. The mixed sand is then filled into the core mold 121 through the sand outlet of the sand mixer 111. After the binder solidifies, a sand core blank is formed. Then, according to different molding requirements, the sand core blank is sent to the flow coating mechanism 20, and the corresponding coating and coating component 20a are selected for surface coating. The coating is evenly applied to the surface of the sand core blank through the flow coating pipe 21 to form a protective layer. After coating and drying, the sand core can be stored for casting, effectively ensuring the quality of castings and production efficiency.
[0034] On the basis of the above embodiment, the flow coating pipeline 21 is provided with a discharge port 21a, the number of the discharge port 21a is equal to the number of the corresponding backflow groove 22 in the coating assembly 20a, ensuring that each backflow groove 22 is correspondingly provided with a discharge port 21a, ensuring the utilization efficiency of the backflow groove 22, and further ensuring the continuity of the sand core production, and each discharge port 21a is arranged towards the backflow groove 22, reducing the waste and splashing of the coating in the coating process, and improving the utilization rate and coating efficiency of the coating.
[0035] On the basis of the above embodiment, the backflow groove 22 is provided with a backflow port 22a on the side wall of the groove bottom, and the flow coating pipeline 21 is provided with an inlet port 21b at one end away from the discharge port 21a, and the inlet port 21b is in communication with the backflow port 22a; the excess coating is backflowed to the flow coating pipeline 21 through the backflow port 22a, which can realize the recycling of the coating, improve the utilization rate of the coating, reduce waste, and reduce production cost.
[0036] On the basis of the above embodiment, a liquid storage tank 21c is arranged in the flow coating channel, the coating is arranged in the liquid storage tank 21c, and the liquid storage tank 21c is in communication with the discharge port 21a; the liquid storage tank 21c is used for storing the coating, facilitating the management and deployment of the coating, and ensuring the continuity and stability of the coating supply; when it is necessary to replace the type of coating, the replacement can be directly performed in the supply pipeline of the liquid storage tank 21c, the operation is simple, the downtime is reduced, and the production efficiency is improved.
[0037] On the basis of the above embodiment, each coating assembly 20a further comprises a driving motor 23 and a pump body 24, the driving motor 23 and the pump body 24 are connected to each other and located between the inlet port 21b and the liquid storage tank 21c; the whole coating process is more automated, manual operation is reduced, production efficiency and operation convenience are improved; the combination of the driving motor 23 and the pump body 24 can accurately control the conveying speed and pressure of the coating, thereby realizing accurate control of the flow of the coating from the liquid storage tank 21c to the discharge port 21a, and ensuring that the coating is uniformly and continuously coated on the sand core blank.
[0038] On the basis of the above embodiment, the bottom and the side wall of the backflow groove 22 are provided with reinforcing plates 22b, the reinforcing plates 22b are arranged in parallel along the transverse and longitudinal directions; the reinforcing plates 22b can significantly improve the structural strength of the backflow groove 22, enabling it to withstand greater pressure and weight, and preventing the groove body from being deformed due to the pressure and impact force that may be generated in the coating flow and pumping process, maintaining its stability and durability, and prolonging the service life of the backflow groove 22.
[0039] On the basis of the above embodiment, the sand mixer 111 comprises a sand mixing bin 111a, a transfer arm 111b and a driving part 111c, the driving part 111c is arranged inside the transfer arm 111b, and the transfer arm 111b is rotatably arranged between the sand mixing bin 111a and the core making area; the sand mixing bin 111a is responsible for mixing sand and binder to form sand, and the mixed sand is transported to the core making area through the transfer arm 111b, and the driving part 111c is arranged inside the transfer arm 111b, so that the structure of the whole sand mixer 111 is more compact, the space is saved, and the rotation of the transfer arm 111b makes the sand mixer 111 flexible to transfer between the sand mixing bin 111a and the core making area, improving the flexibility and efficiency of operation.
[0040] On the basis of the above embodiment, the core making area comprises a large core making area and a small core production line area 122b, and a plurality of core making molds 121 are arranged in the large core making area and the small core production line area 122b, the small core production line area 122b is arranged separately from the large core making area, and the small core production line area 122b is arranged close to one side of the flow coating mechanism 20; by arranging the large core making area and the small core production line area 122b, the large core making area and the small core production line area 122b are separated, and special core making operations can be performed for different sizes of castings, thereby improving production efficiency; and the arrangement of the small core production line area 122b close to the flow coating mechanism 20 can reduce the moving distance of the small core sand core blank, shorten the production cycle, and improve the overall production process efficiency.
[0041] On the basis of the above embodiment, the sand mixing assembly 11 further comprises a plurality of aggregate bins 112, the aggregate bins 112 are arranged at the inlet of the sand mixing bin 111a, and each aggregate bin 112 corresponds to one kind of raw material; different raw materials such as quartz sand and binder can be conveniently managed and stored, ensuring the cleanliness and dryness of the raw materials; and each kind of raw material can be added to the sand mixing bin 111a according to accurate proportion and sequence, which helps to improve the uniformity of mixing and thus improve the quality of the sand core.
[0042] On the basis of the above embodiment, the sand mixing assembly 11 further comprises a conveying belt 113, the conveying belt 113 is located on the side of the aggregate bin 112 away from the sand mixing bin 111a and is arranged in butt joint with the aggregate bin 112; the conveying belt 113 can realize automatic conveying of different raw materials into the aggregate bin 112, reduce manual carrying, improve efficiency, ensure the continuity of the sand mixing process, and reduce production stagnation caused by interruption of raw material supply.
[0043] The person skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description are only for explaining the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed for protection. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A sand core making flow coater apparatus characterized by, The core making mechanism and the flow coating mechanism are arranged in sequence along a sand core production direction, The core making mechanism is used for receiving raw materials and making sand core blanks, and comprises a sand mixing assembly and a molding assembly, the sand mixing assembly comprises a sand mixer, and the molding assembly comprises a plurality of core making molds, and a sand outlet of the sand mixer is arranged towards the core making molds; The flow coating mechanism is used for receiving sand core blanks and coating the surfaces of the sand core blanks with paint, and comprises at least two groups of parallelly arranged coating assemblies, each group of the coating assemblies comprises flow coating pipelines and return flow tanks, different kinds of paint are arranged in the flow coating pipelines respectively, and the sand core blanks are arranged in corresponding return flow tanks according to molding requirements.
2. The sand core making flow coater apparatus of claim 1, wherein, The flow coating pipelines are provided with discharge ports, the number of the discharge ports is equal to the number of the return flow tanks in the corresponding coating assemblies, and each discharge port is arranged towards the return flow tank.
3. The sand core making flow coater apparatus of claim 2, wherein, The sidewall of the bottom of the return flow tank is provided with a return flow port, one end of the flow coating pipeline, which is away from the discharge port, is provided with a feeding port, and the feeding port is arranged in communication with the return flow port.
4. The sand core making flow coater apparatus of claim 3, wherein, The flow coating pipeline is provided with a liquid storage tank, the paint is arranged in the liquid storage tank, and the liquid storage tank is arranged in communication with the discharge port.
5. The sand core making flow coater apparatus of claim 4, wherein, Each group of the coating assemblies further comprises a driving motor and a pump body, the driving motor and the pump body are connected with each other and located between the feeding port and the liquid storage tank.
6. The sand core making flow coater apparatus of claim 5, wherein, The bottom and the sidewall of the return flow tank are provided with reinforcing plates, and the reinforcing plates are arranged in parallel along the transverse direction and the longitudinal direction.
7. The sand core making flow coater apparatus of claim 1, wherein, The sand mixer comprises a sand mixing bin, a transfer arm and a driving part, the driving part is arranged inside the transfer arm, and the transfer arm is rotatably arranged between the sand mixing bin and a core making area.
8. The sand core making flow coater apparatus of claim 7, wherein, The core making area comprises a large core making area and a small core production line area, a plurality of core making molds are arranged in the large core making area and the small core production line area respectively, the small core production line area is arranged separately from the large core making area, and the small core production line area is arranged close to one side of the flow coating mechanism.
9. The sand core making flow coater apparatus of claim 8, wherein, The sand mixing assembly further comprises a plurality of material collecting bins, the material collecting bins are arranged at the inlet of the sand mixing bin, and one kind of raw material is arranged in each material collecting bin.
10. The sand core making flow coater apparatus of claim 9, wherein, The sand mixing assembly further comprises a conveying belt, the conveying belt is located on the side of the material collecting bins away from the sand mixing bin and is arranged in abutment with the material collecting bins.