CN215615066U

CN215615066U - Feeding box

Info

Publication number: CN215615066U
Application number: CN202120208071.6U
Authority: CN
Inventors: 周陈欢
Original assignee: Nanjing Ethernet Communication Technology Co ltd
Current assignee: Nanjing Ethernet Communication Technology Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-01-25
Anticipated expiration: 2031-01-25

Abstract

The application belongs to the technical field of powder machine feeding equipment, and particularly relates to a feeding box which comprises a feeding box main body, wherein a first groove is formed in the end face of the opening end of the feeding box main body, and a sealing element is arranged in the first groove; and an air supply channel communicated with the first groove is formed on the feeding box main body and used for supplying air and applying pressure to the sealing piece. The utility model provides a pay-off box gives the channel of supplying gas and carries gas through setting up the channel of supplying gas that communicates with gas supply device for the pressure increase of channel of supplying gas gives the sealing member and exerts pressure, makes the sealing member orientation deviate from the direction removal of first recess bottom, promotes the sealing performance of sealing member and bed die, thereby improves the condition of leaking the material.

Description

Feeding box

Technical Field

The application belongs to the technical field of powder machine feeding equipment, especially relates to a pay-off box.

Background

In the compression molding link of the powder metallurgy industry, raw material powder in a feeding box is uniformly filled into a die cavity of a press through a front and rear transfer mechanism, and an upper punch moves downwards to pressurize the powder in the die cavity of a lower die to form a required workpiece blank. The uniformity of filling the raw material powder in the die cavity determines whether the density of the workpiece after compression molding is uniform and whether the thickness of the workpiece is consistent. The workpiece blanks with uneven density and inconsistent thickness will be deformed or cracked and discarded after high-temperature sintering. The feeding box moves on the flat plate in a reciprocating mode through the feeding mechanism, the feeding box is limited in contact tightness when reaching the lower die and the feeding box, a gap is formed between the feeding box and the lower die easily, material leakage is caused, and the thickness and the uniformity of workpieces are affected.

Disclosure of Invention

The main technical problem who solves of this application provides a pay-off box, and the pay-off box is easily sealed.

In order to solve the technical problem, the application adopts a technical scheme that: a feeding box comprises a feeding box main body, wherein a first groove is formed in the end face of the opening end of the feeding box main body, and a sealing piece is arranged in the first groove; and an air supply channel communicated with the first groove is formed on the feeding box main body and used for supplying air and applying pressure to the sealing piece.

The air supply channel is provided with a vent valve, the vent valve is used for opening or closing the air supply channel, one end of the air supply channel is communicated with the first groove, and the other end of the air supply channel is used for being connected with an air supply device.

Wherein, the bottom surface of the first groove is also provided with a second groove, the feeding box main body is provided with a vent hole communicated with the second groove, and the vent hole and the second groove form an air feeding channel.

The air supply channel comprises an air supply branch pipe, the air supply branch pipe is inserted into the side wall of the feeding box main body and communicated with the vent hole, and one end of the air supply branch pipe is used for being connected with an air supply device.

The section of one end, close to the second groove, of the second groove in the first direction is smaller than that of the bottom surface of the first groove in the first direction, and the first direction is parallel to the opening end.

The opening of the cross section of the first groove in the second direction on one side facing the opening end is gradually reduced, or the cross section of the first groove in the second direction is square or rectangular, and the second direction is the direction from the bottom end of the first groove to the opening end.

The number of the first grooves is at least two, and the first grooves are annular grooves; more than two annular grooves are arranged in parallel at intervals in sequence along the thickness direction of the side wall of the feeding main body.

The first grooves comprise at least two, the at least two first grooves are arranged in a surrounding mode at intervals along the circumferential direction of the opening end, and each first groove is communicated with at least one air feeding channel.

The feeding box comprises a feeding pipe, wherein a feeding port is formed in the side wall of a feeding box main body, and the feeding pipe is arranged on the feeding port, so that the feeding pipe is communicated with a hollow cavity formed by enclosing the feeding port and the feeding box main body; the included angle formed by the feeding pipe and the plane where the opening end is located is an acute angle or an obtuse angle.

Wherein, the feeding box main body is prism, cube, cuboid, semicircular cover body or centrum.

The beneficial effect of this application is: different from the situation of the prior art, the feeding box provided by the embodiment of the application is provided with the first groove, the first groove can be used for placing the sealing element, the feeding box reciprocates on the flat plate, and when the feeding box reaches the lower die, the sealing element in the first groove is contacted with the lower die to play a certain sealing role, but the sealing is easy to be untight; the feeding box of this application embodiment is through setting up air feed channel, and air feed channel can feed through with air feeder, gives air feed channel conveying gas for air feed channel's pressure increase, to air feed channel is greater than atmospheric pressure, gives the sealing member and exerts pressure, makes the sealing member orientation deviate from the direction removal of first recess bottom, promotes the sealing performance of sealing member and bed die, thereby improves the condition of leaking the material.

Drawings

FIG. 1 is a schematic top view of a feed cassette according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the present invention cartridge without a seal;

FIG. 4 is a schematic cross-sectional view of another embodiment of a feed cassette of the present application;

FIG. 5 is an enlarged schematic view of region A of FIG. 4;

FIG. 6 is a schematic bottom view of an embodiment of the feed cassette of the present application;

FIG. 7 is a schematic bottom view of another embodiment of a feed cassette of the present application;

FIG. 8 is a schematic bottom view of a further embodiment of a feed cassette of the present application;

fig. 9 is a schematic perspective view of an embodiment of a feeding cassette according to the present application.

Wherein, 10, the feeding box main body; 11. an open end; 20. a seal member; 30. a first groove; 40. an air supply channel; 50. a vent valve; 60. a second groove; 41. a vent hole; 42. an air supply branch pipe; 12. a hollow cavity; 70. a feed pipe; 71. a clamping and fixing piece; 80. a connecting member; d1, first direction; d2, second direction.

Detailed Description

In order to make the purpose, technical solution and effect of the present application clearer and clearer, the present application is further described in detail below with reference to the accompanying drawings and examples.

It should be noted that the descriptions in this application as referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the present application, the upper and lower parts are illustrated in the drawings, and the upper and lower parts may be changed and interchanged when the feeding cassette is rotated.

In addition, technical solutions in the embodiments of the present application may be combined with each other, but it is necessary that a person skilled in the art can realize the technical solutions, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should be considered to be absent and not within the protection scope of the present application.

As shown in fig. 1, 2 and 3, the present application provides an embodiment of a feeding cassette, which includes a feeding cassette main body 10, wherein a first groove 30 is formed on an end surface of an open end 11 of the feeding cassette main body 10, and a sealing member 20 is disposed in the first groove 30; the feed box main body 10 is formed with an air supply passage 40 communicating with the first groove 30, and the air supply passage 40 supplies air pressure to the sealing member 20.

The above is the core content of the embodiment of the present application, the feeding box is provided with the first groove 30, the first groove 30 can be used for placing the sealing element 20, the feeding box reciprocates on the flat plate, when the feeding box reaches the lower die, the contact between the sealing element 20 in the first groove 30 and the lower die (not shown) plays a certain sealing role, but the sealing is easy to occur to be not tight; according to the feeding box provided by the embodiment of the application, the air supply channel 40 is arranged, the air supply channel 40 can be communicated with an air supply device (not shown), air is supplied to the air supply channel 40, the pressure intensity of the air supply channel 40 is increased, the air supply channel 40 is higher than the atmospheric pressure, the sealing element 20 is pressurized, the sealing element 20 moves towards the direction departing from the bottom end of the first groove 30, the sealing performance of the sealing element 20 and a lower die is improved, and the material leakage condition is improved.

In an embodiment of the present application, as shown in fig. 4 and 5, the air supply channel 40 is provided with a vent valve 50, the vent valve 50 is used to open or close the air supply channel 40, and one end of the air supply channel 40 is communicated with the first groove 30, and the other end is used to be connected with an air supply device. In the embodiment of the present application, the vent valve 50 may be arranged to close or open the air supply channel 40, and when the air supply device delivers air through the air supply channel 40 and applies pressure, the vent valve 50 may be closed, the air supply channel 40 may be disconnected from the air supply device, and the sealing member 20 is continuously pressed by the pressure in the air supply channel 40, so as to improve the continuous sealing effect between the sealing member 20 and the lower mold.

In the embodiment of the present application, the ventilation valve 50 is disposed in the middle of the air supply channel 40, for example, when the pressure of the air supply device is reduced so that the pressure in the air supply channel 40 is greater than the atmospheric pressure, the ventilation valve 50 can be automatically closed; when the pressure of the gas supply means is greater than the pressure in the gas supply channel 40, the gas valve 50 is automatically opened to supply gas to the gas supply channel 40 near the side of the first groove 30 to increase the pressure. Specifically, the air supply channel 40 is provided with a step surface, the vent valve 50 may include an elastic member and a baffle, one end of the elastic member is disposed on the step surface of the air supply channel 40, and the other end of the elastic member is connected to the baffle, when the air supply device is removed, the pressure of the air supply channel 40 near the first groove 30 side is greater than the atmospheric pressure, the elastic member is compressed, so that the baffle reaches the step surface, and the area of the baffle is greater than the area of the inner diameter of the pipeline from the step surface, so as to seal the step surface and seal the portion of the air supply channel 40 near the first groove 30; when the air supply device supplies air, the pressure intensity of the air supply channel 40 close to one side of the first groove 30 is smaller than the pressure applied by the air supply device, the elastic piece extends to enable the blocking piece to be far away from the step surface, and a gap exists between the step surface and the blocking piece, so that the air supply channel 40 is communicated, and the air supply device can conveniently supply air.

In other embodiments, the vent valve 50 may also be disposed at a port of the air feed channel 40 remote from the first groove 30.

In the embodiment of the present application, the sealing element 20 is preferably made of a wear-resistant and high-temperature-resistant material, for example, nitrile butadiene rubber, silicone, polyurethane, or engineering plastic, and the sealing element 20 and the first groove 30 are matched with each other.

In an embodiment of the present application, as shown in fig. 3 and 5, the bottom surface of the first recess 30 is further formed with a second recess 60, the feed box main body 10 is formed with a vent hole 41 communicating with the second recess 60, and the vent hole 41 and the second recess 60 constitute the air feed passage 40. In the embodiment of the present application, the second groove 60 is disposed, so that the second groove 60 vent 41 forms the air supply channel 40, and the second groove 60 is disposed on the bottom surface of the first groove 30, so that the contact area between the second groove 60 and the first groove 30 is large, when the air supply device supplies air to the air supply channel 40, the second groove 60 can buffer more air, and the sealing member 20 in the first groove 30 can have a larger and more uniform pressure. In an embodiment of the present application, one vent 41 is disposed corresponding to one first groove 30, and the second groove 60 is disposed corresponding to the bottom of the first groove 30, so that the contact surface between the second groove 60 and the first groove 30 is large, and the force applied to the sealing element 20 is uniform.

In the present embodiment, as shown in fig. 3 and 5, the vent hole 41 is provided in the side wall of the feeding cassette main body 10, and in order to facilitate the air supply device to communicate with the vent hole 41, in the present embodiment, the air supply channel 40 includes an air supply branch pipe 42, the air supply branch pipe 42 is inserted into the side wall of the feeding cassette main body 10 and communicates with the vent hole 41, and one end of the air supply branch pipe 42 is used for connecting with the air supply device. Specifically, in the present embodiment, the vent hole 41 vertically penetrates through the side wall of the feeding cassette main body 10, the gas supply branch pipe 42 is inserted into the side wall of the feeding cassette main body 10 perpendicularly to the vent hole 41, so that the gas supply branch pipe 42 communicates with the middle position of the vent hole 41, one end of the vent hole 41 communicates with the second groove 60, and the other end can be sealed or opened by a plug for releasing gas to regulate the pressure in the gas supply channel 40 when the plug is opened.

In one embodiment of the present application, and as further illustrated in fig. 3 and 5, the cross-section of the end of the second groove 60 proximate to the second groove 60 in the first direction D1 is smaller than the cross-section of the bottom surface of the first groove 30 in the first direction D1, wherein the first direction D1 is parallel to the open end 11. By providing second groove 60 with a smaller cross section in first direction D1 than first groove 30, seal 20 in first groove 30 is prevented from reaching second groove 60, increasing the tightness with which seal 20 of cartridge body 10 contacts the lower mold.

In one embodiment of the present application, as shown in fig. 4 and 5, the cross section of the first groove 30 in the second direction D2 is gradually decreased toward the opening end 11, and the second direction D2 is a direction from the bottom end of the first groove 30 toward the opening end 11. In the embodiment of the present application, the cross section of the first groove 30 in the second direction D2 is an inverted trapezoid groove, that is, two sides of the cross section of the first groove 30 in the second direction D2 are line segments, and in other embodiments, two sides of the cross section of the first groove 30 in the second direction D2 are arcs. In the embodiment of the present application, by providing that the opening of the cross section of the first groove 30 in the second direction D2 on the side facing the open end 11 is gradually reduced, when the sealing member 20 located in the first groove 30 applies pressure to the sealing member 20 through the air feed channel 40, the sealing member 20 of the first groove 30 still closely contacts with the first groove 30 when protruding out of the first groove 30, and the sealing performance of the sealing member 20 is improved. In another embodiment, as shown in fig. 3, the cross section of the first groove 30 in the second direction D2 is rectangular, the cross section of the first groove 30 in the second direction D2 is rectangular or square, the side of the cross section of the first groove 30 in the second direction D2 is a straight line, and when the sealing member 20 is partially separated from the first groove 30, the sealing member 20 is still in close contact with the first groove 30, so that the sealing performance of the feeding box is strong when the feeding box is in contact with the lower mold.

In an embodiment of the present application, as shown in fig. 6, the first groove 30 is an annular groove, the number of the first grooves 30 is one, and the annular groove surrounds the opening end 11 of the feeding box main body 10, in the embodiment of the present application, the annular groove is a rectangular groove, and four corners of the rectangular groove are rounded corners, in other embodiments, the first groove 30 may also be a circular groove, a square groove, an elliptical groove, a racetrack type groove, or the like, and specifically, the shape of the annular groove is related to the shape of the opening end 11 of the feeding box main body 10. In the embodiment of the present application, the number of the second grooves 60 is also one, and the second grooves 60 are also annular grooves, the center of the second grooves 60 is the same as the center of the first grooves 30, the second grooves 60 are also rectangular grooves, four corners of the rectangular grooves are rounded corners, and the second grooves 60 are disposed above the bottom of the first grooves 30. In the embodiment of the present application, the number of the vent holes 41 is one, and as a modification, the number of the vent holes 41 may also be two or more, and the vent holes are distributed around the second groove 60 and respectively communicate with the second groove 60.

In other embodiments, the second groove 60 may also be a plurality of linear grooves or arc-shaped grooves arranged at intervals around the bottom surface of the first groove 30, the plurality of second grooves 60 are respectively communicated with the first groove 30, the plurality of second grooves 60 are not directly communicated with each other, and at least one vent hole 41 is correspondingly arranged in each second groove 60. In the embodiment of the present application, the number of the second grooves 60 is eight, and the second grooves are distributed on four sides of the bottom surface of the first groove 30. The second grooves 60 are spaced apart from each other to store the gas supplied from the gas supply device and to apply a uniform force to the sealing member 20 in the first groove 30.

In another embodiment of the present application, as shown in fig. 7, the first grooves 30 are annular grooves, the number of the first grooves 30 is two, the two annular grooves are sequentially arranged in parallel at intervals along the thickness direction of the side wall of the feeding main body, each first groove 30 is provided with a sealing member 20, which is a first sealing member 21 and a second sealing member 22, and by arranging the two annular first grooves 30, the two layers of sealing members 20 can be arranged at the open end 11, so that a double sealing effect is obtained, and the sealing strength between the feeding box and the lower mold is improved. In other embodiments, the bottom surface of each first groove 30 is provided with a second groove 60, the second groove 60 may be an annular groove, and the second grooves 60 may be a plurality of linear grooves or arc-shaped grooves spaced around the circumference of the opening end 11. In other embodiments, the number of the first grooves 30 may also be three or more, and three annular grooves are sequentially arranged in parallel at intervals along the thickness direction of the side wall of the feeding main body.

In yet another embodiment of the present invention, as shown in fig. 8, the number of the first grooves 30 (see fig. 5) is two or more, and the two or more first grooves 30 are disposed around the open end 11 at intervals along the circumferential direction, in this embodiment, the sealing member 20 is disposed in the first groove 30, and the first grooves 30 correspond to the sealing member 20 one by one and are disposed in a matching manner, and each first groove 30 communicates with at least one air feeding channel 40. Specifically, in the embodiment of the present invention, as shown in fig. 8, the number of the first grooves 30 is eight, the first grooves 30 are linear grooves, and in other embodiments, the first grooves 30 may also be linear grooves or arc-shaped grooves, and by distributing a plurality of the first grooves 30 in the circumferential direction of the open end 11, in the embodiment of the present invention, the sealing member 20 is just disposed in the first grooves 30, and the sealing member 20 of the first grooves 30 is pressurized by the air supply channel 40, so that the feeding box is tightly sealed with the lower mold.

In the embodiment of the present application, as shown in fig. 1, fig. 2 and fig. 9, the feeding box main body 10 is enclosed to form a hollow cavity 12, and the hollow cavity 12 is used for accommodating the raw material powder. In the embodiment of the application, the feeding box main body comprises a feeding pipe 70, a feeding port is arranged on the side wall of the feeding box main body 10, and the feeding pipe 70 is arranged on the feeding port, so that the feeding pipe 70 is communicated with a hollow cavity 12 enclosed by the feeding box main body 10 through the feeding port; the feed tube 70 forms an acute or obtuse angle with the plane of the open end 11. Specifically, in the embodiment of the present application, the feeding pipe 70 is inserted into the feeding port, and the feeding pipe 70 is fixed by the fastening member 71, the fastening member 71 in the embodiment of the present application is disposed on the outer wall of the feeding pipe 70 and integrally formed with the outer wall of the feeding pipe 70, and in the embodiment of the present application, the fastening member 71 is fastened on the feeding port, and the fastening member 71 is fixedly connected with the sidewall of the feeding box main body 10 by a screw. In the embodiment of the present application, the feeding pipe 70 is provided to facilitate loading of the powder raw material. Through setting the inlet pipe 70 to the slope form for when powder raw materials passes through inlet pipe 70 feeding, can slide to the bed die slowly, have the cushioning effect, avoid the powder directly to fall the dust that causes in the bed die and spill over.

In the embodiment of the application, as shown in fig. 1, fig. 2 and fig. 9, a connecting member 80 is further disposed on the feeding box main body 10, and the connecting member 80 is used for being connected with the feeding mechanism, so that the feeding mechanism can push the feeding box main body 10 to move.

In this application embodiment, feed box main part 10 is the prism, in this application embodiment, open end 11 area of feed box main part 10 is greater than the area on top for in reinforced in-process, when powder raw materials placed in the cavity 12 of feed box main part 10, powder raw materials motion dispersion to the inside of cavity 12 in, can be directly through the lateral wall of feed box main part 10 slide to the bed die in, can not collect on the lateral wall of feed box main part 10, in other embodiments, feed box main part 10 also is the square, the cuboid, the half of a circular cone body or centrum.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims

1. A feed magazine, comprising:

the feeding box comprises a feeding box main body (10), wherein a first groove (30) is formed in the end face of an opening end (11) of the feeding box main body (10), and a sealing piece (20) is arranged in the first groove (30);

an air feed channel (40) communicated with the first groove (30) is formed on the feeding box main body (10), and the air feed channel (40) is used for supplying and pressurizing air to the sealing piece (20).

2. Feed cassette according to claim 1, characterized in that the gas feed channel (40) is provided with a vent valve (50), the vent valve (50) being adapted to open or close the gas feed channel (40), the gas feed channel (40) being in communication with the first recess (30) at one end and being adapted to be connected to a gas supply at the other end.

3. A feed cassette according to claim 1, wherein a second recess (60) is further formed in a bottom surface of the first recess (30), a vent hole (41) communicating with the second recess (60) is formed in the feed cassette main body (10), and the vent hole (41) and the second recess (60) constitute the air feed passage (40).

4. Feed box according to claim 3, characterized in that the air feed channel (40) comprises an air feed branch pipe (42), the air feed branch pipe (42) is inserted on the side wall of the feed box main body (10) and is communicated with the vent hole (41), and one end of the air feed branch pipe (42) is used for connecting with an air supply device.

5. Feed cassette according to claim 3, characterized in that the cross section of the end of the second groove (60) close to the second groove (60) in a first direction (D1) is smaller than the cross section of the bottom surface of the first groove (30) in a first direction (D1), the first direction (D1) being parallel to the open end (11).

6. Feed cassette according to claim 3, characterized in that the cross section of the first recess (30) in the second direction (D2) is decreasing towards the opening on the side of the open end (11), or that the cross section of the first recess (30) in the second direction (D2) is square or rectangular, the second direction (D2) being the direction of the bottom end of the first recess (30) towards the open end (11).

7. Feed cassette according to claim 1, characterized in that the first recesses (30) are at least two, the first recesses (30) being annular grooves; the more than two annular grooves are sequentially arranged in parallel at intervals along the thickness direction of the side wall of the feeding box main body (10).

8. A cartridge as claimed in claim 1, wherein said first recesses (30) comprise at least two, said at least two first recesses (30) being circumferentially spaced along the circumference of said open end (11), each of said first recesses (30) communicating with at least one of said air feed channels (40).

9. A cartridge according to claim 1, comprising a feed tube (70), wherein a feed opening is provided in a side wall of the cartridge body (10), and the feed tube (70) is provided on the feed opening such that the feed tube (70) communicates with a hollow cavity (12) enclosed by the cartridge body (10) through the feed opening; the included angle formed by the feeding pipe (70) and the plane of the open end (11) is an acute angle or an obtuse angle.

10. Feed cassette according to claim 1, characterized in that the feed cassette body (10) is prism, cube, cuboid, semi-circular mantle or cone.