A high speed rotary pressure compensated tabletting device

Abstract

The utility model relates to tablet press technical field especially relates to a high -speed rotary pressure compensation tablet press device. High -speed rotary pressure compensation tablet press device includes feeding cylinder, and the upper and lower ends of feeding cylinder are opened with feeding port and discharge port respectively, and the upper portion of feeding cylinder is installed with screening structure, and screening structure includes upper cone cylinder and lower cone cylinder, and the lower cone cylinder end lateral wall fixed mounting has the multiple support poles of encircling distribution, and multiple support poles all are with the upper end fixed connection of feeding cylinder, and the upper cone cylinder is connected through the pin shaft rotation with lower cone cylinder, and the upper cone cylinder is installed with the threaded column of screw thread connection with lower cone cylinder, and the upper cone cylinder is connected with lower cone cylinder butt joint inner chamber and forms annular screen chamber, and the annular screen chamber is installed with conical magnetic block. The utility model discloses the principle of magnetic adsorption of conical magnetic block, can quickly adsorb the metal particle of adulteration in material, avoids the tablet of metal impurity mixing, prevents the metal from scratching the die or die hole in the tabletting process of tablet press, reduces the equipment loss.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, and in particular to a high-speed rotary pressure-compensated tablet press device. Background Technology

[0002] Rotary tablet press is one of the main types of tablet presses. Its working principle is as follows: multiple punches are installed in a circumferential shape on the working turntable. The tails of the upper and lower punches are controlled by fixed lifting guide rails. The working turntable is driven to rotate by the transmission equipment, so that the upper and lower punches rotate synchronously with it. At the same time, they are controlled by the guide rails to make axial lifting movements. Particles from the feeding device are continuously added to the punches. Pressure rollers are installed on the upper punch and below the lower punch. When the material rotates to the position of the pressure rollers, the material is continuously pressed into tablets and continuously ejected.

[0003] However, in actual production, the material may be mixed with metal particles (such as rust, metal shavings, etc.). If these metal impurities enter the tablet press with the material, they will scratch the die or die hole during the tableting process, which will not only affect the quality of the tablets, but also increase equipment wear and tear and shorten the service life of the tablet press.

[0004] Therefore, it is necessary to provide a new high-speed rotary pressure-compensated tablet press to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a new high-speed rotary pressure-compensated tablet press device.

[0006] The high-speed rotary pressure-compensated tableting device provided by this utility model includes: a feeding cylinder for feeding a rotary tableting machine, wherein the feeding cylinder has an inlet and an outlet at its upper and lower ends respectively; a screening structure is installed above the feeding cylinder; the screening structure includes an upper cone and a lower cone; multiple support rods are fixedly installed around the end side wall of the lower cone; the multiple support rods are fixedly connected to the upper end of the feeding cylinder; the upper cone and the lower cone are rotatably connected by a pin; and a threaded post is installed on the upper cone and threadedly connected to the lower cone; the inner cavity where the upper cone and the lower cone meet forms an annular sieve cavity; and a conical magnetic block is installed in the annular sieve cavity; the conical magnetic block is detachably connected to the lower cone; and a pushing structure is installed at the bottom of the feeding cylinder.

[0007] Preferably, the feeding structure includes a rotating shaft rotatably connected to the bottom of the feeding cylinder, a plurality of feeding rods arranged in a circular pattern are fixedly installed on the rotating shaft, and a drive motor for driving the rotating shaft to rotate is fixedly installed at the bottom of the feeding cylinder.

[0008] Preferably, the upward-facing portion of the push rod is triangularly arranged.

[0009] Preferably, the bottom of the feed cylinder is equipped with an installation structure, the installation structure including a support column fixed to the bottom of the feed cylinder, a connecting piece fixedly installed at the lower end of the support column, and a docking hole is provided on the connecting piece.

[0010] Preferably, an internally threaded cylinder is installed at the center of the lower conical cylinder, and multiple connecting rods are fixedly installed on the outer ring wall of the internally threaded cylinder, with the ends of the multiple connecting rods fixedly connected to the inner wall of the lower conical cylinder. An externally threaded rod fixed to the bottom of the conical magnetic block is threadedly connected to the internally threaded cylinder.

[0011] Preferably, the outer diameter of the internally threaded cylinder is smaller than the outer diameter of the bottom of the conical magnetic block.

[0012] Preferably, the inner cavity at the upper end of the upper cone is flared.

[0013] Preferably, an arc-shaped baffle fixed to the bottom of the feed cylinder is installed at the discharge port.

[0014] Compared with related technologies, the high-speed rotary pressure-compensating tablet press device provided by this utility model has the following beneficial effects:

[0015] This invention utilizes the magnetic adsorption principle of a conical magnetic block to quickly adsorb metal particles mixed in with the material, preventing metal impurities from entering the tablets and preventing metal from scratching the die or die hole during the tableting process, thus reducing equipment wear. At the same time, when the material falls onto the conical magnetic block, the conical structure allows the material to be dispersed more evenly as it slides down naturally, reducing clumping or agglomeration. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the high-speed rotary pressure-compensating tablet press provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shows the structure of the bottom of the feed cylinder;

[0018] Figure 3 for Figure 1 The diagram shows the structure of the pusher.

[0019] Figure 4 for Figure 1 The diagram shows the structure of the screening mechanism.

[0020] Figure 5 for Figure 4 A schematic diagram of a half-section of the screening structure shown;

[0021] Figure 6 for Figure 5 The diagram shows the structure at point A.

[0022] The diagram is labeled as follows: 1. Feed cylinder; 11. Feed inlet; 12. Discharge outlet; 13. Arc-shaped baffle; 2. Screening structure; 21. Upper cone cylinder; 211. Threaded column; 22. Lower cone cylinder; 221. Annular screen cavity; 23. Support rod; 24. Conical magnetic block; 3. Pushing structure; 31. Rotating shaft; 32. Pushing rod; 33. Drive motor; 4. Mounting structure; 41. Support column; 42. Connecting piece; 43. Butt joint hole; 5. Internal threaded cylinder; 51. Connecting rod; 52. External threaded rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 6 This utility model provides a high-speed rotary pressure-compensating tableting device, which includes: a feeding cylinder 1 for feeding a rotary tableting machine, with a feeding port 11 and a discharging port 12 at the upper and lower ends of the feeding cylinder 1, respectively; a screening structure 2 installed above the feeding cylinder 1, the screening structure 2 including an upper cone 21 and a lower cone 22, and multiple support rods 23 are fixedly installed around the end side wall of the lower cone 22, all of which are fixedly connected to the upper end of the feeding cylinder 1; the upper cone 21 and the lower cone 22 are rotatably connected by a pin shaft, and a threaded post 211 that is threadedly connected to the lower cone 22 is installed on the upper cone 21; the inner cavity where the upper cone 21 and the lower cone 22 meet forms an annular sieve cavity 221, and a conical magnetic block 24 is installed in the annular sieve cavity 221, which is detachably connected to the lower cone 22; and a pushing structure 3 is installed at the bottom of the feeding cylinder 1.

[0026] It should be noted that the device in this application is a feeding device in a rotary tablet press. The feeding cylinder 1 is an irregularly shaped cylinder. Part of its discharge port 12 fits against the turntable of the rotary tablet press and covers part of the die hole, while the other part is located on the outside, so it will not affect the normal operation of the tablet press. The material is fed into the die hole from above through the screening structure 2. The material is then pushed into the die hole from the discharge port 12 by the pushing structure 3. During the process of the material passing through the screening structure 2, the material passes through the upper conical cylinder 21 and is dispersed by the conical magnetic block 24. When the dispersed material passes through the conical magnetic block 24, the magnetic block 24 itself is magnetic and can attract any metals doped in the material. As material continuously enters, the metal adsorbed on the conical magnetic block 24 is pushed to its lower side until the material no longer comes into contact with the metal. After the metal is removed by the conical magnetic block 24, the material enters the feed cylinder 1 from the feed port 11 along the lower conical cylinder 22 and is pushed into the die hole of the rotary tablet press for tableting. This utility model utilizes the magnetic adsorption principle of the conical magnetic block 24 to quickly adsorb metal particles (such as rust, metal scraps, etc.) mixed in the material, avoids metal impurities from entering the tablets, prevents metal from scratching the die or die hole during the tableting process, and reduces equipment wear. At the same time, when the material falls onto the conical magnetic block 24, the conical structure makes the material disperse more evenly when it slides down naturally, reducing agglomeration or clumping.

[0027] Among them, the support rod 23 is used to connect and fix the screening structure 2 and the feed cylinder 1. The upper cone cylinder 21 can rotate, thereby opening the annular screen cavity 221 and exposing the conical magnetic block 24. The metal on the conical magnetic block 24 can be cleaned periodically. The threaded column 211 is used for connection and limiting between the upper cone cylinder 21 and the lower cone cylinder 22.

[0028] Preferably, an arc-shaped baffle 13 is installed at the discharge port 12 and fixed to the bottom of the feed cylinder 1; the arc-shaped baffle 13 fits against the rotary tablet press turntable and prevents material from falling through its gaps without affecting the rotation of the turntable.

[0029] The lower conical cylinder 22 has an internally threaded cylinder 5 installed at its center, and multiple connecting rods 51 are fixedly installed around its outer ring wall. The ends of the connecting rods 51 are fixedly connected to the inner wall of the lower conical cylinder 22. An externally threaded rod 52 fixed to the bottom of the conical magnetic block 24 is threadedly connected to the internally threaded cylinder 5. The multiple connecting rods 51 are used to fix the internally threaded cylinder 5 at the center of the lower conical cylinder 22. The externally threaded rod 52 can be screwed into the internally threaded cylinder 5. That is, by rotating the conical magnetic block 24, the connection or separation between the conical magnetic block 24 and the lower conical cylinder 22 can be realized, which facilitates the timed cleaning of the metal adsorbed on the conical magnetic block 24.

[0030] Preferably, the outer diameter of the internally threaded cylinder 5 is smaller than the bottom outer diameter of the conical magnetic block 24; the conical magnetic block 24 blocks the opening of the internally threaded cylinder 5 to prevent material from entering.

[0031] Preferably, the inner cavity at the upper end of the upper cone 21 is flared to facilitate material discharge.

[0032] In the embodiments of this utility model, please refer to Figure 1 and Figure 3 The feeding structure 3 includes a rotating shaft 31 rotatably connected to the bottom of the feeding cylinder 1. Multiple feeding rods 32 are fixedly installed on the rotating shaft 31 and arranged in a circular pattern. A drive motor 33 for driving the rotating shaft 31 to rotate is fixedly installed at the bottom of the feeding cylinder 1.

[0033] It should be noted that: the drive motor 33 drives the pusher rod 32 to rotate through the rotating shaft 31, pushing the material falling into the feed cylinder 1 to the discharge port 12 to fill the die hole of the rotary tablet press with material and assist in the filling of material. Under the continuous push of the pusher rod 32, the material will quickly fill the die hole of the rotary tablet press.

[0034] Furthermore, the upward-facing part of the push rod 32 is triangularly arranged, which facilitates the natural sliding of material when there is too much material inside the feed cylinder 1.

[0035] In the embodiments of this utility model, please refer to Figure 1 and Figure 2 The bottom of the feed cylinder 1 is equipped with an installation structure 4. The installation structure 4 includes a support column 41 fixed to the bottom of the feed cylinder 1. A connecting piece 42 is fixedly installed at the lower end of the support column 41, and a docking hole 43 is provided on the connecting piece 42.

[0036] It should be noted that the mating hole 43 on the connecting piece 42 is used to fix the feed cylinder 1 to the rotary tablet press by bolts, and the support column 41 is used to raise the installation position of the feed cylinder 1 so that its discharge port 12 can fit against the turntable.

[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0038] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-speed rotary pressure-compensated tableting device, comprising a feed cylinder (1) for feeding a rotary tableting machine, characterized in that: The feed cylinder (1) has an inlet (11) and an outlet (12) at its upper and lower ends, respectively. A screening structure (2) is installed above the feed cylinder (1). The screening structure (2) includes an upper cone (21) and a lower cone (22). Multiple support rods (23) are fixedly installed around the end side wall of the lower cone (22). The multiple support rods (23) are all fixedly connected to the upper end of the feed cylinder (1). The upper cone (21) and the lower cone (22) are connected together. 22) are rotatably connected by a pin shaft, and a threaded column (211) that is threaded to the lower cone (22) is installed on the upper cone (21). The inner cavity of the upper cone (21) and the lower cone (22) forms an annular screen cavity (221), and a conical magnetic block (24) is installed in the annular screen cavity (221). The conical magnetic block (24) is detachably connected to the lower cone (22). A pusher structure (3) is installed at the bottom of the feed cylinder (1).

2. The high-speed rotary pressure-compensating tablet press according to claim 1, characterized in that, The feeding structure (3) includes a rotating shaft (31) rotatably connected to the bottom of the feed cylinder (1), and a number of feeding rods (32) arranged in a ring are fixedly installed on the rotating shaft (31). A drive motor (33) for driving the rotating shaft (31) to rotate is fixedly installed at the bottom of the feed cylinder (1).

3. The high-speed rotary pressure-compensating tablet press according to claim 2, characterized in that, The upward-facing portion of the push rod (32) is arranged in a triangular shape.

4. The high-speed rotary pressure-compensating tablet press according to claim 3, characterized in that, The bottom of the feed cylinder (1) is equipped with an installation structure (4), which includes a support column (41) fixed to the bottom of the feed cylinder (1). A connecting piece (42) is fixedly installed at the lower end of the support column (41), and a docking hole (43) is provided on the connecting piece (42).

5. The high-speed rotary pressure-compensating tablet press according to claim 1, characterized in that, An internal threaded cylinder (5) is installed at the center of the inner cavity of the lower conical cylinder (22), and multiple connecting rods (51) are fixedly installed on the outer ring wall of the internal threaded cylinder (5). The ends of the multiple connecting rods (51) are fixedly connected to the inner wall of the lower conical cylinder (22), and an external threaded rod (52) fixed to the bottom of the conical magnetic block (24) is threadedly connected in the internal threaded cylinder (5).

6. The high-speed rotary pressure-compensating tablet press according to claim 5, characterized in that, The outer diameter of the internally threaded cylinder (5) is smaller than the bottom outer diameter of the conical magnetic block (24).

7. The high-speed rotary pressure-compensating tablet press according to claim 1, characterized in that, The upper end of the upper cone (21) has an flared inner cavity.

8. The high-speed rotary pressure-compensating tablet press according to claim 1, characterized in that, An arc-shaped baffle (13) fixed to the bottom of the feed cylinder (1) is installed at the discharge port (12).

Images