Powder feeding device

Abstract

The utility model discloses a powder feeding device, and relates to the field of powder metallurgy technology, the powder feeding device comprises a powder adding box, a release agent nozzle and a driving mechanism, the driving mechanism is connected with the powder adding box and drives the powder adding box to move linearly; the release agent spray head is arranged on the powder adding box and faces downwards; a mounting bracket is connected to the front side of the powder adding box, a lifting mechanism is arranged on the mounting bracket, and the driving end of the lifting mechanism is connected to the release agent spray head and can drive the release agent spray head to vertically move. According to the powder feeding device, the powder adding box is driven by the driving mechanism to move to the forming device of the pressing machine to add powder to the pressing machine, and the powder adding box is provided with the release agent spray head; the lifting mechanism can drive the release agent spray head to move vertically, the height of the release agent spray head is adjusted to adapt to different production conditions, and therefore the release agent spraying effect is good, and applicability is good.

Description

Technical Field

[0001] The utility model relates to the field of powder metallurgy technology, in particular to a powder feeding device. Background Art

[0002] Powder metallurgy press is a commonly used powder molding equipment in industry, usually including a powder adding device, a powder weighing device, a powder feeding device and a molding device. During the working process of the press, the powder is added to the powder weighing device for weighing, the powder weighing device weighs a certain amount of powder and puts it into the powder adding device (powder adding box), and finally the powder feeding device pushes the powder adding device to the molding device, and the powder is put into the molding mold for pressing and molding.

[0003] The powder feeding device is connected to the powder adding device and is driven to move in a straight line by a linear drive member such as a motor screw, a cylinder or an oil cylinder to send the powder adding box to the top of the molding device for powder adding. A release agent spraying mechanism is also provided on the powder feeding device. Before the powder adding box adds powder to the molding device, a release agent needs to be sprayed into the molding device to facilitate demolding after the product is formed.

[0004] In the prior art, the release agent spraying mechanism is usually fixed to the powder feeding device, and the release agent spraying effect cannot be adjusted according to the actual production situation. The release agent spraying effect is limited and there are limitations in use. Summary of the invention

[0005] The utility model aims to provide a powder feeding device, which has the advantages of good release agent spraying effect and good applicability.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] The utility model provides a powder feeding device, which comprises a powder adding box, a mold release agent nozzle and a driving mechanism, wherein the driving mechanism is connected to the powder adding box and drives the powder adding box to move linearly; the mold release agent nozzle is arranged on the powder adding box and is arranged downward;

[0008] A mounting bracket is connected to the front side of the powder adding box, and a lifting mechanism is arranged on the mounting bracket. The driving end of the lifting mechanism is connected to the release agent spray head and can drive the release agent spray head to move vertically.

[0009] Furthermore, the lifting mechanism includes a lifting cylinder, the end of the piston rod of the lifting cylinder is connected to a nozzle mounting seat, and the release agent nozzle is fixed to the nozzle mounting seat.

[0010] Furthermore, a lower side plate is provided on the lower side of the mounting bracket, the lower side plate is connected to the side of the mounting bracket away from the powder adding box, a scraper is provided at one end of the lower side plate away from the powder adding box, and the lower end of the scraper is flush with the track below the powder adding box.

[0011] Furthermore, the scraper member includes a front end plate and a wool felt, wherein the front end plate is vertically perpendicular to the lower side plate and is arranged at the front end of the lower side plate, and the wool felt is fixed to a side of the front end plate away from the lower side plate.

[0012] Furthermore, a clearance gap is provided on the lower side plate, and the release agent nozzle is directly opposite to the clearance gap and can pass through the clearance gap.

[0013] Furthermore, an upper side plate is provided on the upper side of the mounting bracket away from the powder adding box, the upper side plate is located on the upper side of the mounting bracket, and a clamping component for clamping the molding blank is connected to the side of the upper side plate away from the mounting bracket.

[0014] Furthermore, the clamping assembly includes an air gripper and two clamping arms, the air gripper is fixed to one end of the upper side plate away from the mounting bracket, and the two clamping arms are connected to two clamping blocks of the air gripper and can move toward or away from each other under the drive of the air gripper.

[0015] Furthermore, a clearance opening is formed on the upper side plate, the release agent nozzle is directly opposite to the lower side of the clearance opening, and the lifting cylinder is located in the clearance opening.

[0016] Furthermore, the release agent spray heads are provided with two or more, the release agent spray heads are all fixed on the same spray head mounting seat, and the release agent spray heads are arranged in sequence along a direction perpendicular to the movement direction of the powder adding box.

[0017] Furthermore, the mounting bracket is provided with a waist-shaped hole, the powder adding box is provided with a threaded hole aligned with the waist-shaped hole, and a screw is penetrated through both the waist-shaped hole and the threaded hole.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. In the powder feeding device of the utility model, the driving mechanism drives the powder adding box to move to the molding device of the press to add powder to the press, and the powder adding box is provided with a mold release agent nozzle, and the mold release agent is sprayed into the molding device through the mold release agent nozzle to facilitate the demolding of the molded blank; wherein, the mold release agent nozzle can be driven to move vertically through the lifting mechanism, and the height of the mold release agent nozzle can be adjusted to adapt to different production conditions, so that the mold release agent spraying effect is good and the applicability is good;

[0020] 2. A lower side plate is arranged under the mounting bracket, and the lower side plate is connected to a scraper, so that the scraper is driven to reciprocate during the movement of the powder box to scrape off the leaked powder on the powder box movement track, thereby ensuring the hygiene of the powder box movement track and the stability of the powder box during movement;

[0021] 3. The scraper includes a front end plate and wool felt. The front end plate supports the wool felt, and the wool felt has a better cleaning effect when cleaning the powder on the track;

[0022] 4. A clearance gap is set on the lower side plate to avoid interference between the release agent nozzle and the lower side plate during vertical movement, making the overall structure more reasonable;

[0023] 5. A clearance gap is provided on the lower side plate to avoid interference between the release agent nozzle and the lower side plate during vertical movement, making the overall structure more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main structure of a powder feeding device according to an embodiment of the utility model.

[0025] Figure 2 It is a schematic diagram of the top view of the powder feeding device of one embodiment of the utility model.

[0026] Figure 3 It is a three-dimensional structural schematic diagram of a powder feeding device according to an embodiment of the utility model.

[0027] In the figure:

[0028] 1000, powder feeding device; 100, powder adding box; 110, slider; 200, release agent nozzle; 300, mounting bracket; 310, waist-shaped hole; 400, lifting mechanism; 410, lifting cylinder; 420, nozzle mounting seat; 500, lower side plate; 510, avoidance gap; 600, scraper; 610, front end plate; 620, wool felt; 700, upper side plate; 710, make way opening; 800, clamping assembly; 810, air claw; 820, clamping arm. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings.

[0030] This embodiment discloses a powder feeding device 1000, referring to Figures 1 to 3 The powder feeding device 1000 includes a powder adding box 100, a mold release agent nozzle 200 and a driving mechanism. The driving mechanism is connected to the powder adding box 100 and drives the powder adding box 100 to move linearly; the mold release agent nozzle 200 is disposed on the powder adding box 100 and is disposed downward.

[0031] In this embodiment, the powder adding box 100 is used to store the weighed powder. The powder adding box 100 is driven by a driving mechanism to move on the powder press, so as to move the powder adding box 100 to the molding device (mold) of the powder press to add powder to the molding device to form a blank. When the powder adding box 100 moves, the mold release agent spray head 200 is driven to move, and the mold release agent spray head 200 is connected to the mold release agent storage container. Before the powder adding box 100 adds powder to the molding device, the mold release agent spray head 200 sprays the mold release agent into the mold of the molding device to facilitate the subsequent demolding of the blank after molding.

[0032] The powder press is provided with a slide rail, and a slider 110 cooperating with the slide rail is provided at the bottom of the powder box 100. The driving member can be a motor screw assembly, and the motor drives the screw to rotate so as to drive the screw nut to drive the powder box 100 to move linearly; the driving member can also be a linear driving member such as a cylinder or an oil cylinder.

[0033] A mounting bracket 300 is connected to the front side of the powder box 100, and a lifting mechanism 400 is arranged on the mounting bracket 300. The driving end of the lifting mechanism 400 is connected to the release agent nozzle 200 and can drive the release agent nozzle 200 to move vertically, so that the height of the release agent nozzle 200 can be adjusted to adapt to different production conditions, so that the release agent spraying effect is good and the applicability is good.

[0034] Specifically, the mounting bracket 300 is provided with a waist-shaped hole 310, and the powder box 100 is provided with a threaded hole aligned with the waist-shaped hole 310. A screw is penetrated in both the waist-shaped hole 310 and the threaded hole, so as to fix the mounting bracket 300 to the powder box 100. At the same time, when fixing the mounting bracket 300, the mounting bracket 300 can be moved up and down to correspond to the position of the powder box 100, so that different positions of the waist-shaped hole 310 are aligned with the threaded hole, so that the mounting bracket 300 is set at different heights on the powder box 100, thereby improving the height adjustment range of the release agent nozzle 200.

[0035] In this embodiment, the lifting mechanism 400 includes a lifting cylinder 410 , the end of the piston rod of the lifting cylinder 410 is connected to a nozzle mounting seat 420 , and the release agent nozzle 200 is fixed to the nozzle mounting seat 420 .

[0036] There are two or more release agent spray heads 200, all of which are fixed on the same spray head mounting seat 420, and the release agent spray heads 200 are arranged in sequence along a direction perpendicular to the movement direction of the powder adding box 100. Thus, the release agent spray heads 200 can spray the release agent in a larger range.

[0037] In this embodiment, two release agent nozzles 200 are specifically provided. In addition, in other embodiments, the release agent nozzles 200 may also be provided in other numbers.

[0038] A lower side plate 500 is provided at the lower side of the mounting bracket 300, and the lower side plate 500 is connected to the side of the mounting bracket 300 away from the powder adding box 100. A scraper 600 is provided at one end of the lower side plate 500 away from the powder adding box 100, and the lower end of the scraper 600 is flush with the track below the powder adding box 100. Therefore, the scraper 600 is driven to reciprocate during the movement of the powder adding box 100, and the powder leaked on the movement track of the powder adding box 100 is scraped off, thereby ensuring the hygiene of the movement track of the powder adding box 100 and the stability of the powder adding box 100 during movement.

[0039] The scraper 600 includes a front end plate 610 and a wool felt 620. The front end plate 610 is vertically arranged at the front end of the lower side plate 500 and is perpendicular to the lower side plate 500. The wool felt 620 is fixed to the side of the front end plate 610 away from the lower side plate 500. The wool felt 620 is supported by the front end plate 610, so that the scraper 600 has rigidity. The wool felt 620 can absorb the spilled powder, and the cleaning effect is better when cleaning the powder on the track.

[0040] The lower side plate 500 is provided with a clearance notch 510. The mold release agent nozzle 200 is directly opposite to the clearance notch 510 and can pass through the clearance notch 510. Thus, the lower side plate 500 can be arranged directly below the mounting bracket 300. The lower side plate 500 will not interfere with the mold release agent nozzle 200 when the mold release agent nozzle 200 slides vertically, and the overall structure is more reasonable.

[0041] An upper side plate 700 is provided on the upper side of the mounting bracket 300 away from the powder adding box 100. The upper side plate 700 is located on the upper side of the mounting bracket 300. A clamping assembly 800 for clamping the molding blank is connected to the side of the upper side plate 700 away from the mounting bracket 300. After the powder is pressed into the blank, the blank is ejected from the mold by the molding device. The blank can be taken away from the molding device by the clamping assembly 800, which is convenient for continuous production.

[0042] Specifically, the material clamping assembly 800 includes an air gripper 810 and two clamping arms 820. The air gripper 810 has two clamping blocks arranged opposite to each other, and the air gripper 810 is fixed to one end of the upper side plate 700 away from the mounting bracket 300. The two clamping arms 820 are connected to the two clamping blocks of the air gripper 810 and can move toward or away from each other under the drive of the air gripper 810, so that the two clamping arms 820 clamp or release the blank under the drive of the air gripper 810.

[0043] A clearance opening 710 is formed on the upper side plate 700, and the release agent nozzle 200 is directly below the clearance opening 710. The lifting cylinder 410 is located in the clearance opening 710, thereby making the installation structure of the powder feeding device 1000 more compact and occupying less space, and at the same time facilitating the connection of the lifting cylinder 410 and the release agent nozzle 200.

[0044] The implementation principle of a powder feeding device 1000 of this embodiment is:

[0045] When the powder feeding device 1000 is used to feed powder, the weighed powder is placed in the powder box 100, and the driving part drives the powder box 100 and the mold release agent nozzle 200 to move to the molding device. After the mold release agent is sprayed into the mold by the mold release agent nozzle 200, the powder in the powder box 100 is added to the mold and pressed by the mold. After the blank is formed, it is ejected from the mold, and the air gripper 810 drives the two clamping arms 820 to clamp the blank, and the driving part drives the powder box 100 to leave the mold, so that the air gripper 810 takes the blank away.

[0046] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A powder feeding device, characterized in that: The powder feeding device (1000) comprises a powder adding box (100), a mold release agent nozzle (200) and a driving mechanism, wherein the driving mechanism is connected to the powder adding box (100) and drives the powder adding box (100) to move linearly; the mold release agent nozzle (200) is arranged on the powder adding box (100) and is arranged facing downward; The front side of the powder adding box (100) is connected to a mounting bracket (300), and a lifting mechanism (400) is arranged on the mounting bracket (300). The driving end of the lifting mechanism (400) is connected to the release agent spray head (200) and can drive the release agent spray head (200) to move vertically.

2. A powder feeding device according to claim 1, characterized in that: The lifting mechanism (400) comprises a lifting cylinder (410), the piston rod end of the lifting cylinder (410) is connected to a nozzle mounting seat (420), and the release agent nozzle (200) is fixed to the nozzle mounting seat (420).

3. A powder feeding device as claimed in claim 2, characterized in that: A lower side plate (500) is arranged at the lower side of the mounting bracket (300), and the lower side plate (500) is connected to a side of the mounting bracket (300) away from the powder adding box (100). A scraper (600) is arranged at one end of the lower side plate (500) away from the powder adding box (100), and the lower end of the scraper (600) is flush with the track below the powder adding box (100).

4. A powder feeding device as claimed in claim 3, characterized in that: The scraper (600) comprises a front end plate (610) and a wool felt (620); the front end plate (610) is arranged at the front end of the lower side plate (500) in a vertical direction perpendicular to the lower side plate (500); and the wool felt (620) is fixed to a side of the front end plate (610) away from the lower side plate (500).

5. A powder feeding device as claimed in claim 3, characterized in that: The lower side plate (500) is provided with a avoidance notch (510), and the demoulding agent spray head (200) is directly opposite to the avoidance notch (510) and can pass through the avoidance notch (510).

6. A powder feeding device as claimed in claim 3, characterized in that: An upper side plate (700) is provided on the upper side of the mounting bracket (300) away from the powder adding box (100), and the upper side plate (700) is located on the upper side of the mounting bracket (300). A clamping component (800) for clamping a molding blank is connected to the side of the upper side plate (700) away from the mounting bracket (300).

7. A powder feeding device according to claim 6, characterized in that: The material clamping assembly (800) includes an air gripper (810) and two clamping arms (820), wherein the air gripper (810) is fixed to one end of the upper side plate (700) away from the mounting bracket (300), and the two clamping arms (820) are connected to two clamping blocks of the air gripper (810) and can move toward or away from each other under the drive of the air gripper (810).

8. A powder feeding device as claimed in claim 6, characterized in that: A clearance opening (710) is formed on the upper side plate (700), the demoulding agent nozzle (200) is directly opposite to the lower side of the clearance opening (710), and the lifting cylinder (410) is located in the clearance opening (710).

9. A powder feeding device as claimed in claim 2, characterized in that: The mold release agent spray heads (200) are provided with two or more, and the mold release agent spray heads (200) are all fixed on the same spray head mounting seat (420). The mold release agent spray heads (200) are arranged in sequence along a direction perpendicular to the movement direction of the powder adding box (100).

10. A powder feeding device according to claim 1, characterized in that: The mounting bracket (300) is provided with a waist-shaped hole (310), the powder adding box (100) is provided with a threaded hole aligned with the waist-shaped hole (310), and a screw is inserted into both the waist-shaped hole (310) and the threaded hole.

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