Powder distribution device in forming die

Abstract

The utility model discloses a powder distribution device in a forming die, and particularly relates to the technical field of powder material conveying, which comprises a lower die fixedly mounted at the top of a bottom plate, an upper die matched with the lower die covers the top of the lower die, a distribution cylinder is fixedly communicated with the top of the upper die, and a screening cylinder is rotatably mounted in an inner cavity of the distribution cylinder in a penetrating manner; a feeding port is formed in one side of the screening cylinder, a rotating rod rotating opposite to the screening cylinder is rotationally installed between the distribution cylinder and the screening cylinder in a penetrating mode, a stirring plate is fixedly installed on the peripheral wall of the rotating rod, a screening net plate is installed at the bottom of the distribution cylinder in a floating mode, a cam is rotationally installed on one side of the treatment box, and the bottom of the cam is attached to the top of the screening net plate. According to the powder screening device, cakes in powder are screened and left in the screening barrel through the screening barrel, then the stirring plate is driven by the rotating rod to stir and hit the cakes, the powder is intermittently vibrated through the screening plate to be evenly screened into the space between the upper mold and the lower mold, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder material conveying technology, specifically to a powder distribution device in a molding die. Background Technology

[0002] Patent publication number CN216037342U discloses a powder material dispensing device, relating to the field of powder material conveying technology. This dispensing device includes a dispensing box with a feed inlet. Inside the dispensing box, a dispensing disc and a first driving device for rotating the dispensing disc are rotatably arranged. The dispensing disc has several collection holes. A sealing plate is provided on the top of the dispensing disc to block the collection holes. Multiple air inlet pipes are provided at the bottom of the dispensing disc, below the collection holes. An air-guiding device is provided on the outside of the dispensing box to blow air into the air inlet pipes. An air outlet pipe is provided on the top of the sealing plate, vertically corresponding to each air inlet pipe. The air outlet pipes pass through the dispensing box and extend to the outside of the dispensing box. The sealing plate has clearance holes corresponding to each air outlet pipe. An air jetting device is provided at the bottom of the dispensing box to spray air into the dispensing box. This device enables multi-point transportation from a single unit, reducing production costs and equipment footprint, and simplifying material transportation control.

[0003] In existing technologies, the powder contains clumps before distribution. The clumps cannot be evenly distributed in the mold cavity, resulting in inconsistent product density after molding, which affects the mechanical properties and appearance quality of the product. Utility Model Content

[0004] The purpose of this invention is to provide a powder distribution device for molding dies.

[0005] The technical problem solved by this utility model is that clumped powder cannot be evenly distributed in the mold cavity, which affects product quality.

[0006] This utility model can be achieved through the following technical solution: a lower mold fixedly installed on the top of the base plate, an upper mold matching it being fastened to the top of the lower mold, a distribution cylinder fixedly connected to the top of the upper mold, a screening cylinder being rotatably installed through the inner cavity of the distribution cylinder, a feed inlet being opened on one side of the screening cylinder, a rotating rod rotatably installed between the distribution cylinder and the screening cylinder and rotating in the opposite direction to the screening cylinder, a stirring plate being fixedly installed on the outer peripheral wall of the rotating rod, a screening screen plate being floatingly installed at the bottom of the distribution cylinder, and a cam being rotatably installed on one side of the processing box, with the bottom of the cam abutting against the top of the screening screen plate.

[0007] A further technical improvement of this utility model is that the structure that causes the rotating rod and the screening cylinder to rotate in opposite directions includes a gear ring fixedly installed on the outer peripheral wall of the feed inlet, and a gear meshing with the gear ring rotatably installed on the side of the distribution cylinder near the gear ring, with the rotating shaft of the gear and the rotating rod being driven by a pulley.

[0008] Further, the outer peripheral wall of the screening cylinder is fixedly installed with a plurality of scraping brush plates distributed at equal distances.

[0009] Further, the rotating shaft of the cam is connected with the rotating rod through a belt wheel.

[0010] Further, the structure for floatingly connecting the screening net plate with the bottom of the distribution cylinder comprises a conveying frame slidingly installed through the bottom of the distribution cylinder, the top of the conveying frame is fixedly connected with the bottom of the screening net plate, and a plurality of springs are fixedly installed between the bottom of the screening net plate and the top of the bottom plate of the distribution cylinder.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、The application can screen the lumps in the powder in the screening cylinder, then the rotating rod drives the stirring plate to stir and break the lumps, and then the screening cylinder screens the broken powder into the distribution cylinder, the scraping brush plate driven by the screening cylinder can scrape the powder in the distribution cylinder to the screening plate, and the powder is evenly screened into the upper die and the lower die through the intermittent vibration of the screening plate, so that the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.

[0014] Fig. 1 It is a whole structure schematic view of the utility model;

[0015] Fig. 2 It is a whole structure sectional view of the utility model;

[0016] Fig. 3 It is an internal structure sectional view of the distribution cylinder of the utility model.

[0017] In the drawings: 1, bottom plate; 2, lower die; 3, upper die; 4, distribution cylinder; 5, screening cylinder; 6, feeding port; 7, gear ring; 8, scraping brush plate; 9, gear; 10, rotating rod; 11, stirring plate; 12, conveying frame; 13, screening net plate; 14, spring; 15, cam. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the utility model for realizing the predetermined utility model purposes, the specific implementation manners, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0019] Please refer to Figs. 1-3As shown, the embodiment provides a powder distribution device in a forming mold, comprising a bottom plate 1, a lower mold 2 is fixedly installed on the top of the bottom plate 1, a upper mold 3 matched with the lower mold 2 is buckled on the top of the lower mold 2, an electric push rod driving the upper mold 3 to move up and down in the vertical direction is installed on the bottom plate 1, a distribution cylinder 4 is fixedly communicated on the top of the upper mold 3, a screening cylinder 5 is rotatably installed in the inner cavity of the distribution cylinder 4, a feeding port 6 is formed on one side of the screening cylinder 5, a gear ring 7 is fixedly installed on the outer peripheral wall of the feeding port 6, a plurality of scraping plates 8 are fixedly installed on the outer peripheral wall of the screening cylinder 5 at equal intervals, the scraping plates 8 away from the screening cylinder 5 are attached to the inner peripheral wall of the distribution cylinder 4, and a gear 9 engaged with the gear ring 7 is rotatably installed on the side of the distribution cylinder 4 adjacent to the gear ring 7.

[0020] By moving the upper mold 3 upward and separating from the lower mold 2, the upper mold 3 is separated from the lower mold 2 to facilitate the removal of the formed powder model, the powder can be poured into the screening cylinder 5 through the feeding port 6, the rotating gear 9 drives the screening cylinder 5 to rotate through the gear ring 7, the rotating screening cylinder 5 drives the poured powder to do centrifugal motion, the fine powder in the screening cylinder 5 is screened into the distribution cylinder 4 through the holes of the screening cylinder 5, and the caked powder is screened and retained in the screening cylinder 5, and the scraping plates 8 are scraped on the inner peripheral wall of the distribution cylinder 4 while the screening cylinder 5 rotates to scrape the powder adhered to the inner peripheral wall of the distribution cylinder 4.

[0021] A rotating rod 10 is rotatably installed between the distribution cylinder 4 and the screening cylinder 5, a driving motor driving the rotating rod 10 to rotate is installed on the distribution cylinder 4, the rotating shaft of the gear 9 and the rotating rod 10 are driven by a belt wheel, a stirring plate 11 is fixedly installed on the outer peripheral wall of the rotating rod 10, the stirring plate 11 away from the rotating rod 10 is attached to the inner peripheral wall of the screening cylinder 5, a conveying frame 12 is slidably installed at the bottom of the distribution cylinder 4, a screening mesh plate 13 is fixedly installed on the top of the conveying frame 12, a plurality of springs 14 are fixedly installed between the bottom of the screening mesh plate 13 and the top of the bottom plate 1 of the distribution cylinder 4, a cam 15 is rotatably installed on one side of the processing box, the bottom of the cam 15 is attached to the top of the screening mesh plate 13, and the rotating shaft of the cam 15 and the rotating rod 10 are driven by a belt wheel.

[0022] When the rotating rod 10 rotates, the rotating rod 10 drives the gear 9 to rotate in the same direction through the belt pulley, the rotating gear 9 drives the screening cylinder 5 to rotate in the same direction through the gear ring 7, the rotating rod 10 drives the stirring plate 11 to beat and stir the powder lumps screened in the screening cylinder 5, so that the powder lumps are broken up, the broken-up powder is screened into the distribution cylinder 4 through the holes of the screening cylinder 5, and the rotating rod 10 drives the cam 15 to rotate synchronously through the belt pulley, the rotating cam 15 intermittently extrudes the top of the screening mesh plate 13, so that the screening mesh plate 13 is extruded downwards along the extension direction of the conveying frame 12, and the pressure on the springs 14 is released, so that the screening mesh plate 13 is vibrated upwards to screen the powder scattered on the screening mesh plate 13 into the upper mold 3.

[0023] In use, the powder is poured into the screening cylinder 5 through the feeding port 6, then the rotating rod 10 is rotated, the rotating rod 10 drives the gear 9 to rotate in the same direction through the belt pulley, the rotating gear 9 drives the screening cylinder 5 to rotate in the same direction through the gear ring 7, the rotating rod 10 drives the cam 15 to rotate synchronously through the belt pulley, the rotating cam 15 intermittently extrudes the screening mesh plate 13, the screening mesh plate 13 is vibrated upwards under the action of the springs 14 after being extruded by the cam 15, and the fine powder poured into the screening cylinder 5 is screened into the distribution cylinder 4, the powder lumps are screened into the distribution cylinder 4 through the screening cylinder 5 after being stirred and broken up by the stirring plate 11, the powder screened into the distribution cylinder 4 is scraped to the top of the screening mesh plate 13 through the scraping plate 8, and the powder is uniformly screened into the upper mold 3 and the lower mold 2 through the intermittent vibration of the screening mesh plate 13.

[0024] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above, however, is not used to limit the utility model, any person skilled in the art, within the scope of the technical scheme of the utility model, can make some changes or modifications to the equivalent embodiments disclosed above, but as long as the changes or modifications do not deviate from the technical scheme of the utility model, the changes or modifications are equivalent to the changes or modifications of the above embodiments, and the changes or modifications are still within the scope of the technical scheme of the utility model.

Claims

1. A powder distribution device in a molding die, comprising a lower die (2) fixedly mounted on the top of a base plate (1), characterized in that: The lower mold (2) is covered with a matching upper mold (3). The upper mold (3) is fixedly connected to a distribution cylinder (4). A screening cylinder (5) is rotatably installed through the inner cavity of the distribution cylinder (4). A feed inlet (6) is opened on one side of the screening cylinder (5). A rotating rod (10) that rotates in the opposite direction to the screening cylinder (5) is rotatably installed between the distribution cylinder (4) and the screening cylinder (5). A stirring plate (11) is fixedly installed on the outer peripheral wall of the rotating rod (10). A screening screen plate (13) is floatingly installed at the bottom of the distribution cylinder (4). A cam (15) is rotatably installed on one side of the processing box. The bottom of the cam (15) is in contact with the top of the screening screen plate (13).

2. The powder distribution device in the molding die according to claim 1, characterized in that, The structure that causes the rotating rod (10) to rotate toward the screening cylinder (5) includes a gear ring (7) fixedly installed on the outer peripheral wall of the feed inlet (6), and a gear (9) that meshes with the gear ring (7) is rotatably installed on the side of the distribution cylinder (4) near the gear ring (7). The shaft of the gear (9) is driven to the rotating rod (10) by a pulley.

3. The powder distribution device in the molding die according to claim 1, characterized in that, The outer peripheral wall of the screening cylinder (5) is fixedly equipped with several equally spaced scraper plates (8).

4. The powder distribution device in the molding die according to claim 1, characterized in that, The cam (15) is driven by a pulley to the rotating rod (10).

5. The powder distribution device in the molding die according to claim 1, characterized in that, The structure that causes the screening screen plate (13) to float and connect with the bottom of the distribution cylinder (4) includes a conveying frame (12) that is slidably installed through the bottom of the distribution cylinder (4), the top of the conveying frame (12) being fixedly connected to the bottom of the screening screen plate (13), and several springs (14) being fixedly installed between the bottom of the screening screen plate (13) and the top of the bottom plate (1) of the distribution cylinder (4).

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