A multi-channel injection valve for casting and molding viscous materials

Abstract

The present invention provides a multi-channel injection valve for casting and molding viscous materials, comprising: an upper discharge plate, an intermediate material distribution partition, a lower discharge plate, a sliding guide plate, and a linear telescopic power member. The upper discharge plate is provided with a plurality of upper discharge channels arranged at intervals, the lower discharge plate is provided with a lower discharge channel corresponding to the position of each upper discharge channel, and the intermediate material distribution partition is provided with a material passage channel; the intermediate material distribution partition is slidably connected to the sliding guide plate; the upper discharge plate, the sliding guide plate, and the lower discharge plate are sequentially fitted from top to bottom, and the linear telescopic power member is used to drive the intermediate material distribution partition to move along to achieve communication and closure between the upper discharge channel and the lower discharge channel. Compared with the prior art, the present invention realizes timely passage and flow control of materials through the cooperation of upper and lower fixed discharge plates and the intermediate material distribution partition. The present invention has the advantages of simple assembly, good interchangeability, good cutoff effect, and uniform injection.

Description

Technical Field

[0001] The invention belongs to the technical field of resource utilization of subway shield slag, and in particular relates to a multi-channel injection valve used for casting and molding viscous materials. Background Art

[0002] During the resource utilization of subway shield slag, the viscous material formed by mixing the shield slag with admixtures needs to be further cast into building materials with various geometric shapes. In order to improve the efficiency during the casting process, a multi-cavity casting mold can be used.

[0003] In the prior art, viscous material is injected into a multi-cavity casting mold through a large injection port.

[0004] The disadvantages of the prior art are that, with this structure, the opening and closing time of the discharge port cannot be accurately controlled, and the same amount of material cannot be injected into each cavity at the same time, resulting in poor uniformity.

[0005] Therefore, it is necessary to provide a new multi-channel injection valve for casting and molding viscous materials to solve the above technical problems. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] Based on this, the present invention provides a multi-channel injection valve for casting and molding viscous materials to solve the technical problems that existing multi-cavity casting molds lack corresponding injection valves, cannot accurately control the opening and closing of the discharge port, and cannot inject the same amount of material into each cavity at the same time.

[0008] (2) Technical solution

[0009] In order to solve the above technical problems, the present invention proposes a multi-channel injection valve for casting and molding viscous materials, comprising: an upper discharge plate, an intermediate material distribution partition and a lower discharge plate, the upper discharge plate is provided with a plurality of upper discharge channels arranged at intervals, the lower discharge plate is provided with a lower discharge channel corresponding to the position of each of the upper discharge channels, and the intermediate material distribution partition is provided with a feed channel with the same number as the upper discharge channels; a sliding guide plate is further provided between the upper discharge plate and the lower discharge plate, the sliding guide plate is provided with a guide groove, the intermediate material distribution partition is arranged in the guide groove, and the intermediate material distribution partition is slidably connected to the sliding guide plate; the upper discharge plate, the sliding guide plate and the lower discharge plate are sequentially attached from top to bottom, and the thickness of the intermediate material distribution partition is less than the thickness of the sliding guide plate; a linear telescopic power part is connected to one side of the intermediate material distribution partition, and the linear telescopic power part is used to drive the intermediate material distribution partition to move back and forth along the guide groove to realize the connection and closing between the upper discharge channel and the lower discharge channel.

[0010] Preferably, the upper discharge plate is a rectangular plate, the shape of the lower discharge plate is the same as that of the upper discharge plate, and the upper discharge plate and the lower discharge plate are aligned up and down.

[0011] Preferably, the upper discharge plate is a square plate, and an upper connecting hole is respectively provided at the four corners of the upper discharge plate, and a lower connecting hole is correspondingly provided at the position of the lower discharge plate opposite to the upper discharge plate. A threaded connection piece passes through the upper connecting hole and the lower connecting hole at the same time to fix the upper discharge plate, the sliding guide plate and the lower discharge plate into one.

[0012] Preferably, the thickness of the intermediate material dividing plate is 0.45-0.85 times the thickness of the sliding guide plate.

[0013] Preferably, the middle material dividing partition is rectangular as a whole, the guide groove is rectangular, and the width of the guide groove matches the width of the middle material dividing partition.

[0014] Preferably, the arrangement of the feed channels is the same as that of the upper discharge channels, and the upper discharge channels are arranged in a rectangular array, and the row spacing of adjacent upper discharge channels is equal to the column spacing of adjacent upper discharge channels.

[0015] Preferably, the upper discharge plate is provided with three columns and five rows of the upper discharge channels; a recessed installation sealing groove is provided on one side of the upper discharge plate away from the lower discharge plate, and all the upper discharge channels are provided in the area enclosed by the installation sealing groove.

[0016] Preferably, the installation sealing groove is circular, and a plurality of injection cover installation holes are provided on the side of the upper discharge plate away from the lower discharge plate, and the injection cover installation holes are all provided outside the area enclosed by the installation sealing groove.

[0017] Preferably, the upper discharge channel and the lower discharge channel have the same shape.

[0018] The upper discharge channel is composed of a plurality of first rectangular holes arranged at intervals, or the upper discharge channel is a second rectangular hole.

[0019] (3) Beneficial effects

[0020] Compared with the prior art, the multi-channel injection valve for casting and molding viscous materials of the present invention has the following advantages:

[0021] The multi-channel injection valve for casting and molding viscous materials of the present invention achieves timely passage and flow control of materials through the cooperation of upper and lower fixed discharge plates and an intermediate material dividing partition. It can simultaneously inject material into each cavity of a multi-cavity mold, achieving multi-channel uniform injection of fluidized material, which is conducive to quickly and effectively filling each cavity and can greatly improve the efficiency of injection. In addition, the opening and closing of all injection channels can be controlled simultaneously and quickly. The multi-channel injection valve for casting and molding viscous materials of the present invention has the advantages of simple structure, reliable operation, strong interchangeability, easy disassembly and assembly, and simple operation. According to the needs of use, the structure of the upper discharge plate and the lower discharge plate can be flexibly selected to complete the multi-mold casting and molding of fluidized material. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A top view of embodiment 1 of the present invention;

[0024] Figure 2 This is an exploded view of embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the upper discharge plate in embodiment 1 of the present invention (the upper feed channel is in the shape of multiple rows of strips);

[0026] Figure 4 A top view of embodiment 2 of the present invention;

[0027] Figure 5 This is an exploded view of embodiment 2 of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the upper discharge plate in embodiment 2 of the present invention (the upper feed channel is a single-mouth rectangular shape).

[0029] Description of reference numerals:

[0030] 01. Upper discharge plate, 02. Middle material dividing plate, 03. Lower discharge plate, 04. Sliding guide plate, 05. Linear telescopic power part;

[0031] 011. Upper discharge channel, 012. Upper connection hole, 013. Installation sealing groove, 014. Injection cover installation hole;

[0032] 021. Material transfer channel;

[0033] 031. Lower discharge channel, 032. Lower connecting hole;

[0034] 041. Guide groove;

[0035] 011a. The first rectangular hole;

[0036] 01b. Upper discharge plate (multiple columns of strip-shaped channels), 03b. Lower discharge plate (multiple columns of strip-shaped channels), 011b. Second rectangular hole. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] The following is combined with Figure 1-6 The multi-channel injection valve for casting and molding viscous materials of the present invention is further described.

[0039] Example 1

[0040] Please refer to the attached Figure 1-3 The present invention discloses a multi-channel injection valve for casting and molding viscous materials, comprising: an upper discharge plate 01, an intermediate material dividing partition 02 and a lower discharge plate 03. The upper discharge plate 01 is provided with a plurality of upper discharge channels 011 arranged at intervals, and the lower discharge plate 03 is provided with a lower discharge channel 031 corresponding to each upper discharge channel 011. The intermediate material dividing partition 02 is provided with a feed channel 021 with the same number as the upper discharge channels 011; a sliding guide plate 04 is further provided between the upper discharge plate 01 and the lower discharge plate 03, and a The guide groove 041, the middle material dividing partition 02 is arranged in the guide groove 041, and the middle material dividing partition 02 is slidably connected to the sliding guide plate 04; the upper discharge plate 01, the sliding guide plate 04 and the lower discharge plate 03 are sequentially fitted from top to bottom, and the thickness of the middle material dividing partition 02 is less than the thickness of the sliding guide plate 04; one side of the middle material dividing partition 02 is connected to a linear telescopic power part 05, and the linear telescopic power part 05 is used to drive the middle material dividing partition 02 to move back and forth along the guide groove 041 to realize the connection and closing between the upper discharge channel 011 and the lower discharge channel 031.

[0041] More specifically, the linear telescopic power member 05 is a telescopic oil cylinder or a telescopic air cylinder.

[0042] In this embodiment, the multi-channel injection valve for viscous material casting and molding has an open state and a closed state. When the multi-channel injection valve for viscous material casting and molding is in the open state, the upper discharge channel 011 communicates with the lower discharge channel 031 through the material channel 021. When the multi-channel injection valve for viscous material casting and molding is in the closed state, the intermediate material dividing partition 02 blocks the communication between the upper discharge channel 011 and the lower discharge channel 031. A detailed description is as follows.

[0043] The linear telescopic power element 05 drives the middle material dividing plate 02 to move. When the feed channel 021 moves to a position aligned with the upper discharge channel 011, the upper discharge channel 011 and the lower discharge channel 031 are connected, and the multi-channel injection valve for casting and molding viscous materials is in the open state. When the feed channel 021 moves to a position where the feed channel 021 and the upper discharge channel 011 are offset, and the middle material dividing plate 02 blocks all of the upper discharge channels 011, the connection between the upper discharge channel 011 and the lower discharge channel 031 is blocked, and the multi-channel injection valve for casting and molding viscous materials is closed.

[0044] According to a specific embodiment of the present invention, the upper discharge plate 01 is a rectangular plate, the shape of the lower discharge plate 03 is the same as that of the upper discharge plate 01, and the upper discharge plate 01 and the lower discharge plate 03 are aligned vertically.

[0045] More specifically, the upper discharge plate 01 is a square plate, and an upper connecting hole 012 is respectively provided at the four corners of the upper discharge plate 01, and a lower connecting hole 032 is correspondingly provided at the position of the lower discharge plate 03 facing the upper discharge plate 01. The upper connecting hole 012 and the lower connecting hole 032 are simultaneously penetrated by a threaded connection piece to fix the upper discharge plate 01, the sliding guide plate 04 and the lower discharge plate 03 into one.

[0046] In this embodiment, the rectangular structure is used for easy molding and is compatible with the rectangular mold shape. The threaded connector is provided to form a detachable connection structure, which facilitates the disassembly and replacement of the upper discharge plate 01, the sliding guide plate 04 and the lower discharge plate 03.

[0047] According to a specific embodiment of the present invention, the thickness of the middle material dividing partition 02 is 0.45-0.85 times the thickness of the sliding guide plate 04 .

[0048] More specifically, the thickness of the intermediate material distribution partition 02 is 0.65 times the thickness of the sliding guide plate 04. This structure creates a gap between the intermediate material distribution partition 02 and the upper discharge plate 01, ensuring smooth reciprocating movement of the intermediate material distribution partition 02. However, this gap is small, minimizing the thickness of the accumulated material layer above the intermediate material distribution partition 02.

[0049] According to a specific embodiment of the present invention, the middle material dividing partition 02 is rectangular as a whole, the guide groove 041 is rectangular, and the width of the guide groove 041 matches the width of the middle material dividing partition 02 .

[0050] According to a specific embodiment of the present invention, the arrangement of the feed channel 021 is the same as that of the upper discharge channel 011 , and the upper discharge channels 011 are arranged in a rectangular array, and the row spacing of adjacent upper discharge channels 011 is equal to the column spacing of adjacent upper discharge channels 011 .

[0051] In this embodiment, this structure is adopted to realize multi-column and multi-discharge of materials, and can form an equidistant matrix, which is beneficial to improving the uniformity of the discharge.

[0052] According to a specific embodiment of the present invention, three columns and five rows of upper discharge channels 011 are provided on the upper discharge plate 01; a recessed installation sealing groove 013 is provided on the side of the upper discharge plate 01 away from the lower discharge plate 03, and all upper discharge channels 011 are arranged in the area surrounded by the installation sealing groove 013.

[0053] With this structure, before injecting the material, an injection cover is first installed on the upper discharge plate 01. The injection cover can be in the shape of a hemispherical cover as a whole, and the bottom of the injection cover abuts against the bottom of the sealing groove 013 to ensure the sealing between the injection cover and the upper discharge plate 01. The material is then injected through the injection cover, which can realize pressurized injection of the material and prevent the material from scattering.

[0054] According to a specific embodiment of the present invention, the installation sealing groove 013 is circular, and a plurality of injection cover installation holes 014 are provided on the side of the upper discharge plate 01 away from the lower discharge plate 03. The injection cover installation holes 014 are all provided outside the area surrounded by the installation sealing groove 013.

[0055] In this embodiment, with this structure, the injection cover mounting hole 014 does not affect the injection. The injection cover mounting hole 014 is used to fix the injection cover.

[0056] According to a specific embodiment of the present invention, the upper discharge channel 011 and the lower discharge channel 031 have the same shape.

[0057] In this embodiment, the use of this structure is conducive to forming a sufficiently large material passing space when the upper discharge channel 011 and the lower discharge channel 031 are aligned, ensuring that the material can pass through smoothly.

[0058] On the basis that the upper discharge channel 011 and the lower discharge channel 031 have the same shape, upper discharge channels 011 with different shapes are used to facilitate the coordination between the upper discharge channel 011 and the lower discharge channel 031 and control the parameters of the passage of materials with different fluidities.

[0059] The multi-channel injection valve for casting and molding viscous materials of the present invention will be further described below.

[0060] During use, the multi-channel injection valve for casting viscous materials of the present invention is positioned above a mold for casting building materials (such as bricks). The mold for casting building materials can be a modular, multi-jointed mold with multiple cavities. The multi-channel injection valve for casting viscous materials of the present invention is used to inject the plastic material into the mold.

[0061] In a specific implementation, if the cavities of the modular multi-joint mold are arranged in a matrix structure of three columns and five rows, the upper discharge channel 011 will also be arranged in a matrix structure of three columns and five rows, and the lower discharge channel 031 will have the same structure as the upper discharge channel 011. The shape and position of the feed channel 021 will correspond to those of the upper discharge channel 011.

[0062] During injection, the lower discharge plate 03 covers the top of the mold, and the upper discharge channel 011, the feed channel 021 and the lower discharge channel 031 are aligned, that is, the openings of the three coincide to form an injection channel. Each cavity corresponds to an injection channel, and the multi-channel injection valve used for casting and molding viscous materials is in the open state.

[0063] After the injection is completed, the linear telescopic power part 05 drives the middle material dividing partition 02 to move outward until it just closes the through hole between the upper discharge plate 01 and the lower discharge plate 03 and stops. At this time, the middle material dividing partition 02 blocks all the upper discharge channels 011, and the multi-channel injection valve used for casting and molding viscous materials is in a closed state, interrupting the injection.

[0064] Then open the gap between the lower discharge plate 03 and the top of the mold to about 1 mm, pause for a while (to facilitate the separation of the material adhered to the lower discharge plate 03 from the material in the mold cavity), and then completely separate the lower discharge plate 03 from the mold.

[0065] The multi-channel injection valve for viscous material casting of the present invention can simultaneously inject material into each cavity of a multi-cavity mold, achieving uniform multi-channel injection of fluidized material, facilitating rapid and efficient filling of each cavity and significantly improving injection efficiency. Furthermore, the opening and closing of all injection channels can be controlled simultaneously and rapidly.

[0066] The multi-channel injection valve for casting viscous materials is primarily used in the molding process during shield tunneling slag resource utilization. It is used in conjunction with molds used to cast and mold building materials. By utilizing a matrix-type multi-channel discharge port and a staggered structure to open and close the injection channels, the valve enables rapid and uniform injection of fluidized plastic materials into multi-link mold cavities.

[0067] According to a specific embodiment of the present invention, the upper discharge channel 011 is composed of a plurality of first rectangular holes 011a arranged at intervals.

[0068] Example 2

[0069] Please refer to the attached Figure 4-6 The present invention discloses a multi-channel injection valve for casting and molding viscous materials, comprising: an upper discharge plate (multiple columns of strip channels) 01b, an intermediate material dividing partition 02 and a lower discharge plate (multiple columns of strip channels) 03b.

[0070] The structure of the multi-channel injection valve for casting and molding viscous materials provided in Example 2 is basically the same as that of the multi-channel injection valve for casting and molding viscous materials provided in Example 1, except that the structures of the upper discharge channel and the lower discharge channel are different.

[0071] In Example 1, the upper discharge channel 011 is composed of a plurality of first rectangular holes 011a arranged at intervals. In Example 2, the upper discharge channel 011 is a second rectangular hole 011b.

[0072] By changing the structures of the upper discharge channel 011 and the lower discharge channel 031 , two types of multi-channel injection valves for casting and molding viscous materials can be formed to adapt to materials with different fluidities.

[0073] For plastic materials with good fluidity, it is advisable to adopt a structure in which the discharge channel consists of multiple first rectangular holes 011a arranged at intervals (the upper feed channel of Example 1 is in the shape of multiple rows of strips). Each discharge channel discharges material in a multi-row strip structure to control the flow rate and ensure that the amount of material in the mold will not get out of control.

[0074] For plastic materials with high viscosity and poor fluidity, it is advisable to adopt a structure in which the upper discharge channel 011 is a second rectangular hole 011b (the upper feed channel of Example 2 is a single-mouth rectangular shape) to ensure the consistency and uniformity of the material flow rate per unit time in each channel.

[0075] As can be seen from the above, the multi-channel injection valve for viscous material casting and molding of this embodiment has the advantages of simple structure, reliable operation, strong interchangeability, convenient assembly and disassembly, and simple operation. The upper discharge plate 01 and lower discharge plate 03 structures can be flexibly selected according to application needs to achieve multi-mold casting and molding of fluid plastic materials.

[0076] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can mean internal communication between two elements, or a "transmission connection," i.e., a power connection through various appropriate means such as a belt drive, a gear drive, or a sprocket drive. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A multi-channel injection valve for casting viscous materials, characterized in that: include: The top of the discharging opening is connected with the charging aperture, and the bottom of the discharging opening is connected with the charging aperture, and the charging aperture is connected with the upper and lower discharge channels, and the charging aperture is connected with the lower discharge channel respectively. The arrangement of the material transfer channels is the same as that of the upper discharge channels, and the upper discharge channels are arranged in a rectangular array, and the row spacing between adjacent upper discharge channels is equal to the column spacing between adjacent upper discharge channels.

2. The multi-channel injection valve for casting viscous materials according to claim 1, characterized in that: The upper discharge plate is a rectangular plate, the lower discharge plate has the same shape as that of the upper discharge plate, and the upper discharge plate and the lower discharge plate are aligned up and down.

3. The multi-channel injection valve for casting viscous materials according to claim 2, characterized in that: The upper discharge plate is a square plate, and an upper connecting hole is respectively provided at the four corners of the upper discharge plate. A lower connecting hole is correspondingly provided at the position of the lower discharge plate opposite to the upper discharge plate. A threaded connection piece passes through the upper connecting hole and the lower connecting hole at the same time to fix the upper discharge plate, the sliding guide plate and the lower discharge plate into one.

4. The multi-channel injection valve for casting viscous materials according to claim 3, characterized in that: The thickness of the intermediate material dividing partition is 0.45-0.85 times the thickness of the sliding guide plate.

5. The multi-channel injection valve for casting viscous materials according to claim 4, characterized in that: The middle material dividing partition is rectangular as a whole, the guide groove is rectangular, and the width of the guide groove matches the width of the middle material dividing partition.

6. The multi-channel injection valve for casting viscous materials according to claim 5, characterized in that: The upper discharge plate is provided with three columns and five rows of upper discharge channels; a recessed installation sealing groove is provided on one side of the upper discharge plate away from the lower discharge plate, and all the upper discharge channels are provided in the area surrounded by the installation sealing groove.

7. The multi-channel injection valve for casting viscous materials according to claim 6, characterized in that: The installation sealing groove is circular, and a plurality of injection cover installation holes are provided on a side of the upper discharge plate away from the lower discharge plate. The injection cover installation holes are all provided outside the area surrounded by the installation sealing groove.

8. The multi-channel injection valve for casting viscous materials according to claim 7, characterized in that: The upper discharge channel and the lower discharge channel have the same shape.

9. The multi-channel injection valve for casting viscous materials according to claim 8, characterized in that: The upper discharge channel is composed of a plurality of first rectangular holes arranged at intervals, or the upper discharge channel is a second rectangular hole.

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