Powder injection production screening device

Abstract

The utility model relates to a powder injection production screening device which comprises a barrel body and a barrel cover, a feeding port is formed in the top of the barrel cover, a discharging port is formed in the lower portion of the side wall of the barrel body, a fixing ring is fixedly arranged in the barrel body, a filter plate capable of moving up and down is coaxially arranged below the fixing ring, and a plurality of filter holes are formed in the filter plate. A tension spring is fixedly arranged between the fixed ring and the filter plate, a material distributing cone is rotatably arranged in the center of the filter plate, a center driving rod is fixedly arranged at the bottom of the material distributing cone, and a driving assembly used for driving the filter plate to move up and down is installed on the center driving rod. The powder injection raw materials are prevented from being accumulated on the filter plate, when the distribution cone rotates, the center driving rod is driven to rotate synchronously, the center driving rod enables the filter plate to shake up and down through the driving assembly, and the filter plate is effectively prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder injection field especially a powder injection production screening device. BACKGROUND

[0002] Powder injection, as a kind of dosage form, is divided into sterile powder and freeze-dried powder according to preparation principle.For example, penicillin, cephalosporin and other powder injections are usually sterile and packaged separately;while other antibiotics, such as quinolones for injection, are freeze-dried powder, and the two have differences in appearance, the sterile packaged powder is in powder form, while the freeze-dried powder is usually in block form, and both require sterile workshop preparation.Powder injection workshop needs to screen raw materials during production, but the filter plate of the existing powder injection screening device is easy to block, which needs to be improved. SUMMARY

[0003] The utility model aims at providing a powder injection production screening device to solve the problem of easy clogging of the screen of the existing powder injection production screening device.

[0004] In order to solve the above problems, the utility model provides a powder injection production screening device, which comprises a cylinder and a cylinder cover, the top of the cylinder cover is provided with a feeding port, the side wall of the cylinder is provided with a discharging port below, a fixed ring is fixedly arranged in the cylinder, a filter plate movable up and down is arranged coaxially below the fixed ring, a plurality of filter holes are formed in the filter plate, a tension spring is fixedly arranged between the fixed ring and the filter plate, a distribution cone is rotatably arranged at the center of the filter plate, a center driving rod is fixedly arranged at the bottom of the distribution cone, and a driving assembly for driving the filter plate to move up and down is installed on the center driving rod.

[0005] The powder injection production screening device provided by the utility model also has the following technical features:

[0006] Further, the top end of the distribution cone corresponds to the feeding port up and down.

[0007] Further, the pore size of the filter hole is 1-2mm.

[0008] Further, the driving assembly comprises a driving block fixedly connected with the center driving rod coaxially, a driving cylinder sleeved on the center driving rod and a plurality of linkage rods fixedly arranged on the outer wall of the driving cylinder in the circumferential direction, a plurality of first ratchet teeth are arranged on the bottom end surface of the driving block in the circumferential direction, and a plurality of second ratchet teeth are arranged on the top end surface of the driving cylinder in the circumferential direction.

[0009] Further, a motor is fixedly arranged at the bottom of the cylinder for driving the center driving rod to rotate.

[0010] Further, the linkage rod is in the shape of "L".

[0011] Further, the discharge port is detachably provided with a blocking plate.

[0012] The utility model discloses have the following beneficial effects: through the rotating the material cone can even spread the material, avoid the powder injection raw materials to accumulate on the filter plate, when the material cone rotates, drive the central drive rod synchronous rotation, the central drive rod passes through the drive assembly makes the filter plate shakes up and down, effectively avoid the filter plate is blocked. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic diagram of powder injection production screening device;

[0014] Figure 2 It is the half cut structure schematic diagram of powder injection production screening device;

[0015] Figure 3 It is Figure 2 The local structure amplification schematic diagram of A in middle. DETAILED DESCRIPTION

[0016] The utility model discloses will be described in the following in detail with reference to the drawings and combining the embodiment. It is to be explained that in the case of not conflicting, the embodiment in the utility model and the feature in the embodiment in the embodiment can be combined mutually.

[0017] As Figures 1 to 3 The embodiment of powder injection production screening device of the utility model discloses, including cylinder 10 and cylinder cover 11, the top of cylinder cover 11 is equipped with feed inlet 110, the lower side wall of cylinder 10 is equipped with discharge port 100, the inside fixed of cylinder 10 is equipped with fixed ring 101, the coaxial line below fixed ring 101 is provided with the filter plate 2 that can move up and down, is equipped with a plurality of filter holes 20 on filter plate 2, is fixed between fixed ring 101 and filter plate 2 and is equipped with tension spring 3, the center of filter plate 2 can be rotatably equipped with material cone 4, the bottom of material cone 4 is fixedly equipped with central drive rod 5, and central drive rod 5 is installed with the drive assembly 6 for driving filter plate 2 to move up and down, specifically, through the rotating material cone can even spread the material, avoid the powder injection raw materials to accumulate on filter plate 2, when material cone 4 rotates, drive central drive rod 5 synchronous rotation, and central drive rod 5 passes through drive assembly 6 and makes filter plate 2 shakes up and down, effectively avoid filter plate 2 is blocked.

[0018] In one embodiment of the application, the top end of the material cone 4 corresponds to the feed inlet 110 up and down.

[0019] In one embodiment of the application, the pore size of the filter hole 20 is 1-2mm.

[0020] In an embodiment of the present application, the driving assembly 6 comprises a driving block 61 fixedly connected coaxially with the central driving rod 5, a driving cylinder 62 sleeved on the central driving rod 5, and a plurality of linkage rods 63 fixed circumferentially on the outer wall of the driving cylinder 62, the bottom end surface of the driving block 61 is provided circumferentially with a plurality of first ratchet teeth 610, and the top end surface of the driving cylinder 62 is provided circumferentially with a plurality of second ratchet teeth 620 arranged in a staggered manner with the first ratchet teeth 610, specifically, when the central driving rod rotates, the central driving rod drives the distributing cone to rotate, so as to uniformly spread the powder injection raw materials entering the cylinder body 10, at the same time, the central driving rod drives the driving block to rotate synchronously, so that the first ratchet teeth 610 slide on the second ratchet teeth 620, and the driving cylinder 62 moves up and down intermittently, the driving cylinder 62 drives the filter plate 2 to move up and down through the linkage rods 63, so as to effectively avoid the filter plate 2 from being blocked.

[0021] In an embodiment of the present application, the bottom of the cylinder body 10 is fixedly provided with a motor 7 for driving the central driving rod to rotate.

[0022] In an embodiment of the present application, the linkage rods 63 are in the shape of "L".

[0023] In an embodiment of the present application, the discharge port 100 is detachably provided with a blocking plate 8.

[0024] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sieving device for powder injection production, characterized in that, The device includes a cylinder and a cylinder cover. The top of the cylinder cover has a feed inlet, and the bottom of the side wall of the cylinder has a discharge outlet. A fixing ring is fixed inside the cylinder. A filter plate that can move up and down is coaxially arranged below the fixing ring. The filter plate has multiple filter holes. A tension spring is fixed between the fixing ring and the filter plate. A material distribution cone is rotatably provided at the center of the filter plate. A central drive rod is fixed at the bottom of the material distribution cone. A drive assembly for driving the filter plate to move up and down is installed on the central drive rod.

2. The powder injection production screening device according to claim 1, characterized in that: The top of the material distribution cone corresponds vertically to the feed inlet.

3. The powder injection production screening device according to claim 1, characterized in that: The pore size of the filter is 1-2 mm.

4. The powder injection production screening device according to claim 1, characterized in that: The drive assembly includes a drive block fixedly connected coaxially to the central drive rod, a drive cylinder sleeved on the central drive rod, and multiple linkage rods circumferentially fixed to the outer wall of the drive cylinder. The bottom end face of the drive block is circumferentially provided with multiple first ratchet teeth, and the top end face of the drive cylinder is circumferentially provided with multiple second ratchet teeth that are misaligned with the first ratchet teeth.

5. The powder injection production screening device according to claim 1, characterized in that: The bottom of the cylinder is fixed with a motor for driving the central drive rod to rotate.

6. A powder injection production screening device according to claim 4, characterized in that: The linkage rod is L-shaped.

7. A powder injection production screening device according to claim 1, characterized in that: A sealing plate can be detachably installed at the discharge port.

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