Airtight pick-up bin plate structure

Abstract

The utility model relates to the technical field of metal additive manufacturing equipment, and provides an airtight piece taking bin plate structure which comprises a first bin plate and a second bin plate, the first bin plate is matched with the second bin plate in a stepped mode, a flow guide groove communicated with the outside is formed between the first bin plate and the second bin plate, and the flow guide groove is filled with sealant. And meanwhile, the flow guide grooves guide the sealant to be evenly filled in the gaps and guide the sealant to be efficiently discharged, a three-dimensional sealing layer is formed, and the situation that installation of the bin plate is affected due to the fact that the sealant cannot be discharged is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal additive manufacturing equipment technical field, specifically, relate to a kind of airtight pick-up warehouse board structure. BACKGROUND

[0002] Pick-up warehouse is as the core component of storage printing parts and unmelting powder, its operation needs to maintain high airtightness environment to prevent powder leakage from harming the health of operator, while isolating external air to reduce the risk of metal powder combustion and explosion, and reduce internal gas loss to improve energy efficiency.Current mainstream technology uses six pieces of screw-connected aluminum alloy sealing plate to form the warehouse body structure, and sealing is achieved by applying sealant at the joint gap.

[0003] Although the scheme in the prior art has basic sealing function, it has significant defects in actual application due to the machining precision of aluminum alloy plate and the characteristics of sealing material.Firstly, due to cost control, the flatness of large-area aluminum alloy flat plate is low after machining, which makes it difficult to align the screw holes between the plates during assembly and the gap distribution is uneven.This structural deviation not only increases the assembly difficulty, but also makes it difficult for conventional sealant to effectively fill gaps of different widths, even if the sealant is applied, it still cannot achieve the ideal airtight state.Secondly, the high viscosity of the existing sealant makes it impossible to discharge excess glue by natural flow during assembly, and the residual glue accumulates at the joint to form local stress, further aggravating the plate misalignment phenomenon, forming a vicious cycle of mutual restriction between sealing effect and structural precision, which seriously restricts the stability and reliability of the overall airtight performance. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of airtight pick-up warehouse board structure, solve the problem that existing sealing plate installation position is not accurate, airtightness is not ideal.

[0005] The utility model realizes the following technical scheme: a kind of airtight pick-up warehouse board structure, including first warehouse board and second warehouse board, first warehouse board and second warehouse board are in step cooperation, and the flow guide groove that is communicated with the outside is formed between first warehouse board and second warehouse board, and sealant is filled in flow guide groove.

[0006] Further, the flow guide groove includes a total groove and a branch groove opened on the step surface of the first warehouse board, the total groove is arranged along the length direction of the first warehouse board step, the branch groove is communicated with the total groove at one end, and the other end of the branch groove is connected with the outside.

[0007] Further, the branch groove is evenly spaced apart by a plurality of branch grooves along the length direction of the first warehouse board step.

[0008] Further, the branch groove is gradually narrowed from inside to outside at the groove opening of the branch groove towards the outside.

[0009] Furthermore, the surface of the guide channel is coated with a dry lubricant.

[0010] Furthermore, the first and second compartment plates are fastened together by bolts, which pass through the stepped mating surfaces of the first and second compartment plates.

[0011] This utility model has at least the following advantages and beneficial effects: the step-fitting of the first compartment plate and the second compartment plate forms a guide groove and fills it with sealant, which facilitates accurate positioning and assembly. At the same time, the guide groove guides the sealant to fill the gap evenly and guides the sealant to be discharged efficiently, forming a three-dimensional sealing layer, thus avoiding the inability of the sealant to be discharged and affecting the installation of the compartment plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an airtight parts retrieval compartment structure provided by this utility model.

[0013] Figure 2 A cross-sectional view of the stepped fit between the first compartment plate and the second compartment plate in an airtight parts retrieval compartment plate structure provided by this utility model.

[0014] Figure 3 This is a schematic diagram of the first compartment plate in an airtight parts retrieval compartment plate structure provided by this utility model.

[0015] Figure 4 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0016] Figure 5 This is a schematic diagram of the second compartment plate in an airtight parts retrieval compartment plate structure provided by this utility model.

[0017] Attached reference numerals: 1-First compartment plate, 2-Second compartment plate, 3-Guide channel, 31-Main channel channel, 32-Branch channel channel, 4-Bolt. Detailed Implementation

[0018] The specific implementation method is described below with reference to the accompanying drawings.

[0019] Example

[0020] like Figures 1 to 5As shown, this embodiment mainly discloses an airtight retrieval compartment structure, which mainly includes a first compartment 1 and a second compartment 2. The first compartment 1 and the second compartment 2 are stepped together, and a guide channel 3 communicating with the outside is formed between the first compartment 1 and the second compartment 2. The guide channel 3 is filled with sealant. Specifically, the retrieval compartment body is composed of six compartments forming a cube, namely two second compartments 2 on the bottom and top, and four first compartments 1 on the surrounding sides. The stepped surfaces of the first compartment 1 and the second compartment 2 are both one step, that is, they include a platform (plane) and a step (elevation). The guide channel 3 is formed by the stepped engagement of the first compartment 1 and the second compartment 2 and filled with sealant. During assembly, the second compartment 2 on the bottom is first placed on the plane, and sealant is evenly applied to the stepped surface of the second compartment 2. Then, the first compartment 1 and the second compartment 2 are stepped together and the first compartment 1 is pressed down to make the first compartment 1 and the second compartment 2 in close contact. On the one hand, the stepped fit provides a self-positioning function, simplifying the positioning and installation steps, reducing manual adjustment time, and improving assembly efficiency. On the other hand, the stepped fit forms a continuous sealing surface, and the guide groove 3 guides the sealant to fill the gaps evenly, avoiding the air leakage problem of traditional flat splicing; at the same time, after the sealant cures in the guide groove 3, it forms a three-dimensional sealing layer, covering the gaps between the panels and reducing the risk of leakage.

[0021] Furthermore, in specific implementation, such as Figure 3 , Figure 4 As shown, the guide channel 3 provided in this embodiment of the present invention includes a main channel 31 and branch channels 32 formed on the stepped surface of the first compartment plate 1. The main channel 31 is arranged through the first compartment plate 1 along the length of the stepped surface. One end of the branch channel 32 is connected to the main channel 31, and the other end of the branch channel 32 is connected to the outside. Specifically, the main channel 31 is a straight channel formed on the vertical surface of the stepped surface. The main channel 31 serves as the main channel, guiding the sealant to flow to the branch channels 32 in a concentrated manner, thus preventing the disorderly diffusion of the sealant. The branch channels 32 are zigzag channels formed on both the plane and vertical surfaces of the stepped surface. The branch channels 32 provide multiple discharge paths. Even if one path is blocked, excess sealant can still be discharged through other branches, improving fault tolerance. The cooperation between the main channel 31 and the branch channels 32 ensures that the sealant is evenly distributed along the length direction, optimizing the flow direction and speed of the sealant, ensuring efficient discharge of the sealant, avoiding sealant retention caused by traditional single paths, and preventing insufficient or excessive sealant in certain areas. It should be noted that when the cross-sectional area of ​​the sealant flow channel changes, the shear force on the sealant increases, resulting in shear thinning. The molecular chains align in the direction of flow, reducing internal frictional resistance, thus decreasing viscosity and increasing fluidity. This facilitates the discharge of the sealant and prevents it from being unable to be discharged, which could affect the installation of the silo plate.

[0022] Preferably, several branch grooves 32 are evenly spaced along the length of the first compartment plate 1. The evenly distributed branch grooves 32 balance the flow pressure of the sealant, reducing the overflow of sealant caused by local high pressure or insufficient filling in low-pressure areas. At the same time, the uniformly spaced branch grooves 32 ensure that the sealant is discharged evenly along the length of the compartment plate, which helps to form a continuous and uninterrupted sealing layer.

[0023] Preferably, the opening of the branch groove 32 facing outward gradually narrows from the inside to the outside. The narrowing of the opening increases the shear rate of the sealant during flow, triggering a shear thinning effect and significantly enhancing its fluidity. In addition, the variable cross-section design creates a "Venturi effect," where the flow rate increases as the cross-sectional area decreases, accelerating the discharge of excess sealant. At the same time, the narrowing of the opening creates a unidirectional flow trend, reducing the risk of sealant backflow due to gravity or pressure during the curing process.

[0024] Furthermore, in specific implementations, the surface of the aforementioned guide channel 3 provided in this embodiment of the invention is coated with a dry lubricant. Specifically, the dry lubricant is a polytetrafluoroethylene (PTFE) dry lubricant. This reduces the coefficient of friction on the surface of the guide channel 3, further accelerating the discharge of the sealant.

[0025] Furthermore, in specific implementation, such as Figure 2 As shown, in this embodiment of the invention, the first compartment plate 1 and the second compartment plate 2 are fastened together by bolts 4, which pass through the stepped mating surfaces of the first compartment plate 1 and the second compartment plate 2. Through the synergistic effect of the bolt connection and the stepped mating, combined with mechanical preload and sealant filling, the stability of the structural connection is improved.

Claims

1. An airtight component retrieval compartment structure, characterized in that, It includes a first compartment plate (1) and a second compartment plate (2), the first compartment plate (1) and the second compartment plate (2) are stepped together, and a flow channel (3) that communicates with the outside is formed between the first compartment plate (1) and the second compartment plate (2), and the flow channel (3) is filled with sealant.

2. The airtight parts retrieval compartment structure according to claim 1, characterized in that, The guide channel (3) includes a main channel (31) and a branch channel (32) opened on the stepped surface of the first compartment plate (1). The main channel (31) is arranged through the first compartment plate (1) along the length of the steps. One end of the branch channel (32) is connected to the main channel (31), and the other end of the branch channel (32) is connected to the outside.

3. The airtight parts retrieval compartment structure according to claim 2, characterized in that, The branch channel (32) is evenly spaced along the step length direction of the first compartment plate (1).

4. The airtight parts retrieval compartment structure according to claim 2, characterized in that, The opening of the branch groove (32) facing the outside gradually narrows from the inside to the outside.

5. The airtight parts retrieval compartment structure according to claim 1, characterized in that, The surface of the guide groove (3) is coated with dry lubricant.

6. The airtight parts retrieval compartment structure according to claim 1, characterized in that, The first compartment plate (1) and the second compartment plate (2) are fastened by bolts (4), which pass through the stepped mating surfaces of the first compartment plate (1) and the second compartment plate (2).

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