Tablet press with cleaning function

Abstract

The utility model discloses a rotary tablet press with a cleaning function, and relates to the technical field of tablet presses, the rotary tablet press comprises a frame and an extrusion device, and the extrusion device comprises an upper punch and a lower punch which are used for extruding tablets; a cleaning device is fixed on the inner side of the frame and arranged between the sheet discharging channel and the feeding device, the cleaning device comprises two cleaning wheel brushes, a powder shifting roller, a powder falling opening, a recycled powder outlet and a wheel brush motor, the cleaning wheel brushes are located between the upper punch and the lower punch, the number of the cleaning wheel brushes is two, and the cleaning wheel brushes are driven by the wheel brush motor. The rotating directions of the two cleaning wheel brushes are opposite, and the two cleaning wheel brushes rotate towards the center sides of the two cleaning wheel brushes; the two powder shifting rods are located between the two cleaning wheel brushes and abut against the cleaning wheel brushes on the two sides; a powder falling opening is formed between the powder shifting rods; the top of the recycled powder communicates with a powder falling opening, a bottom outlet of the recycled powder communicates with an exhaust fan, the upper punch and the lower punch are cleaned through the two cleaning wheel brushes rotating reversely, and powder accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tablet press technical field, specifically a tablet press with cleaning function. BACKGROUND

[0002] Tablet press, is the granule or powder material is placed in the die hole by punch press into tablet mechanical, can press into round tablet or special-shaped tablet of various types dry, wet powder granular material, rotary tablet press has the characteristics of fast speed, high yield, tablet quality, and is equipped with powder suction box in the machine, through the suction nozzle can suck the dust generated when the machine rotates, avoid sticking blockage, and can recycle raw materials for reuse.

[0003] However, the existing rotary tablet press still has the following shortcomings: in the process of using the tablet press, the powder is accumulated at the punch, which makes the punch impression blurred and produces burr and other problems, and the existing tablet press is difficult to clean itself, so the staff needs to use a brush to clean the multiple punches in turn, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tablet press with cleaning function to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A tablet press with cleaning function, including frame and extrusion device, the extrusion device includes upper punch and lower punch for extruding tablets, the frame is fixed with guide rail on the inside up and down side, two guide rails are provided with extrusion convex on the opposite side, the frame center is fixed with rotating motor, the rotating motor is used for driving the extrusion device to rotate, the extrusion device is fixed with flexible extrusion piece up and down, the hole carousel is fixedly connected below the rotating motor, still include feeding device and tablet outlet channel, the feeding device is fixed to the frame, and one end is located above the hole carousel for adding powder, the tablet outlet channel is fixed to the frame, and one end is located above the hole carousel, and the other end extends downward, the frame inboard is fixed with cleaning device, the cleaning device is arranged between the tablet outlet channel and feeding device, and the cleaning device includes cleaning wheel brush, powder shifter, powder drop, recycled powder outlet and wheel brush motor, the cleaning wheel brush is located between the upper punch and lower punch, the cleaning wheel brush has two, is driven through the wheel brush motor, and the rotating direction of two cleaning wheel brushes is opposite, and is rotated towards the center side of two cleaning wheel brushes, the powder shifter has two, and is located between two cleaning wheel brushes and the abutment of both sides cleaning wheel brush, the powder shifter is opened between the powder drop, the recycled powder top is communicated with the powder drop, and the bottom outlet is communicated with the exhaust fan.

[0007] As a further preference of the present invention, the extrusion device also includes a perforated turntable and a die, the perforated turntable is fixedly connected to the bottom of the rotating motor, and a plurality of dies are installed around the perforated turntable, and a hole is opened in the center of the die; there are multiple upper punches, which are fixed below the upper flexible extrusion sheet; there are multiple lower punches, which are fixed above the lower flexible extrusion sheet, and the opposite sides of the lower punches and the upper punches pass through the corresponding dies. During the rotation of the perforated turntable, the flexible extrusion sheet is extruded by the extrusion protrusion, driving the upper and lower punches to extrude in the die to achieve extrusion of the tablets.

[0008] As a further preference of the present invention, the tablet outlet channel includes a tablet outlet and a tablet drop rod, the tablet drop rod is located above the perforated turntable, and forms an acute angle with the tangent direction of the rotation of the perforated turntable and the direction of the tablet drop rod; the tablet outlet is tilted upward and downward along the edge, the top end of which is fixedly connected to the tablet drop rod, and the bottom end is detachably connected to a collecting box, and the tablets are guided into the tablet outlet by the tablet drop rod cooperating with the rotation of the perforated turntable.

[0009] As a further preferred embodiment of the present invention, the sheet outlet channel is connected to the frame via vertical bolts, and the distance between the sheet drop rod and the perforated turntable can be adjusted by adding or removing gaskets.

[0010] As a further preferred embodiment of the present invention, a baffle is fixed inside the frame, and the baffle is arranged around the perforated turntable to prevent the medicine powder from overflowing during the pressing process.

[0011] As a further preference of the present invention, the feeding device includes a feed port, a feed channel, and a powder outlet; the feed port is laterally connected to the feed channel, and the feed channel is connected to the powder outlet on the side away from the feed port, and the powder outlet is a rectangular frame with upper and lower openings, and its bottom end is slidably connected to the perforated turntable, which is used to introduce the medicinal powder into the inner die and improve the sinking speed through the upper and lower openings of the powder outlet.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By providing a cleaning device, after the tablet is discharged from the tablet discharge device, the upper and lower punches are cleaned with a cleaning wheel brush to avoid accumulation of powder;

[0013] 2. By setting two cleaning brushes to rotate in opposite directions, the cleaning effect is improved;

[0014] 3. By setting a powder paddle, the cleaning wheel brush is cleaned during its rotation, and the powder is recovered by the exhaust fan after cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0016] Figure 1 Schematic diagram of the structure of the tablet press with cleaning function in this embodiment.

[0017] Figure 2 The top view of the tablet press with cleaning function of this embodiment is removed from the frame.

[0018] Figure 3 Schematic diagram of the structure of the feeding device in the tablet press with cleaning function in this embodiment.

[0019] Figure 4 Schematic diagram of the structure of the discharge channel of the tablet press with cleaning function in this embodiment.

[0020] Figure 5 3D is a perspective view of a cleaning device in a tablet press with a cleaning function according to this embodiment.

[0021] Figure 6 Schematic diagram of the cleaning wheel brush in the tablet press with cleaning function according to this embodiment.

[0022] Figure 7 This is a three-dimensional diagram of the lower punch, die and upper punch in the tablet press with cleaning function in this embodiment.

[0023] Figure 8 Schematic diagram of the tablet pressing operation of the tablet press with cleaning function in this embodiment.

[0024] In the figure: 1. Extrusion device; 2. Frame; 3. Feeding device; 4. Guide rail; 5. Flexible extrusion sheet; 6. Cleaning device; 7. Tablet discharge channel; 8. Collecting box; 9. Baffle; 10. Rotating motor; 11. Turntable with holes; 12. Tablet; 101. Lower punch; 102. Die; 103. Upper punch; 301. Feed port; 302. Feed channel; 303. Powder discharge port; 401. Extrusion protrusion; 601. Cleaning wheel brush; 602. Powder paddle; 603. Powder drop port; 604. Powder recovery outlet; 605. Wheel brush motor; 701. Tablet discharge port; 702. Tablet drop rod; 703. Gasket. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See Figure 1-Figure 7As shown, a tablet press with a cleaning function includes a frame 2 and an extrusion device 1, wherein the extrusion device 1 includes an upper punch 103 and a lower punch 101 for extruding tablets 12; guide rails 4 are fixed on the upper and lower sides of the frame 2, and extrusion protrusions 401 are provided on opposite sides of the two guide rails 4; the extrusion device 1 also includes a perforated turntable 11 and a die 102, the perforated turntable 11 is fixedly connected to the bottom of the rotating motor 10, and a plurality of dies 102 are installed in a ring on the perforated turntable 11, and a hole is opened in the center of the die 102; there are multiple upper punches 103, which are fixed below the upper flexible extrusion sheet 5; there are multiple lower punches 101, which are fixed above the lower flexible extrusion sheet 5, and the opposite sides of the lower punch 101 and the upper punch 103 pass through the corresponding dies 102. During the rotation of the perforated turntable 11, the flexible extrusion sheet 5 is squeezed by the extrusion protrusion 401, driving the upper and lower punches 101 to extrude in the die 102 to achieve the extrusion of the tablet 12. A rotating motor 10 is fixed at the center of the frame 2 , and the rotating motor 10 is used to drive the extrusion device 1 to rotate. Flexible extrusion sheets 5 are fixed on the upper and lower parts of the extrusion device 1 , and the extrusion device 1 also includes a feeding device 3 and a sheet discharge channel 7 .

[0027] like Figure 1-Figure 3 The feeding device 3 is fixed to the frame 2, with one end positioned above the perforated turntable 11, and is used to add medicinal powder. Specifically, the feeding device 3 includes a feed port 301, a feed channel 302, and a powder outlet 303. The feed port 301 is laterally connected to the feed channel 302, and the feed channel 302 is connected to the powder outlet 303 on the side away from the feed port 301. The powder outlet 303 is a rectangular frame with upper and lower openings, and its bottom end is slidably connected to the perforated turntable 11. It is used to guide the medicinal powder into the inner die 102 and increase the sinking speed through the upper and lower openings of the powder outlet 303.

[0028] like Figure 1 、 2 and Figure 4 As shown, the sheet outlet channel 7 is fixed to the frame 2, one end of which is located above the perforated turntable 11, and the other end extends downward; specifically, the sheet outlet channel 7 includes a sheet outlet 701 and a sheet drop rod 702, the sheet drop rod 702 is located above the perforated turntable 11, and forms an acute angle with the tangent direction of the rotation of the perforated turntable 11 and the direction of the sheet drop rod 702; the sheet outlet 701 is tilted upward and downward along the edge, the top end of which is fixedly connected to the sheet drop rod 702, and the bottom end is detachably connected to the collecting box 8, and the tablets 12 are introduced into the sheet outlet 701 by the sheet drop rod 702 cooperating with the rotation of the perforated turntable 11.

[0029] like Figure 1 、 2As shown in FIG6 , in the embodiment of the present utility model, a cleaning device 6 is fixed on the inner side of the frame 2. The cleaning device 6 is arranged between the sheet outlet channel 7 and the feeding device 3. The cleaning device 6 includes a cleaning wheel brush 601, a powder material moving rod 602, a powder material drop port 603, a powder material recovery outlet 604 and a wheel brush motor 605. The cleaning wheel brush 601 is located between the upper punch 103 and the lower punch 101. There are two cleaning wheel brushes 601, which are driven by the wheel brush motor 605. Driven, and the two cleaning wheel brushes 601 rotate in opposite directions, rotating toward the center side of the two cleaning wheel brushes 601; there are two powder paddles 602, and they are located between the two cleaning wheel brushes 601 and abut against the cleaning wheel brushes 601 on both sides; a powder drop port 603 is opened between the powder paddles 602; the top of the recovered powder is connected to the powder drop port 603, and its bottom outlet is connected to the exhaust fan, and the exhaust fan cooperates with the filter to recover the powder, which is an existing technology and will not be repeated here.

[0030] Furthermore, in the embodiment of the present utility model, the lower punch 101 is at its highest position, higher than the perforated turntable 11 to achieve interference fit, thereby improving the cleaning effect.

[0031] like Figure 4 As shown, in an embodiment of the present invention, the sheet outlet channel 7 is connected to the frame 2 by vertical bolts, and the distance between the sheet drop rod 702 and the perforated turntable 11 can be adjusted by adding or removing gaskets 703, so that the sheet drop rod 702 is 2-3 mm higher than the perforated turntable.

[0032] like Figure 1 As shown, in the embodiment of the present invention, a baffle 9 is fixed inside the frame 2, and the baffle 9 is arranged around the perforated turntable 11 to prevent the powder from overflowing during the pressing process.

[0033] like Figure 1 、 2As shown in FIGS. 1-8, the working steps of the embodiment of the utility model are as follows: 1, adding medicine powder into the feeding port 301, entering the powder outlet 303 through the feeding channel 302, and then entering the die 102; 2, rotating the motor 10 to drive the rotating disc 11 with holes to rotate, under the extrusion of the extrusion protrusion 401 and the flexible extrusion sheet 5 made of rubber, the upper punch 103 is pressed down, and cooperates with the lower punch 101 to extrude the tablet 12; 3, continue to rotate, the upper punch 103 is driven to move up by the flexible extrusion sheet 5, the lower punch 101 is driven to move up by the extrusion protrusion 401 below, so that the tablet 12 extends out of the die 102; 4, the tablet 12 is rotated to the tablet falling rod 702, and under the guidance of the tablet falling rod 702, enters the collecting box 8 through the tablet outlet 701; 5, rotate to the cleaning wheel brush 601, under the rotation of the wheel brush motor 605, clean the upper punch 103 and the lower punch 101, clean, the cleaning wheel brush 601 continues to rotate, the powder pushing stick 602 is pushed, the cleaning wheel brush 601 is cleaned, and is recycled by the air extractor.

[0034] The above only is the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tablet press with a cleaning function, comprising a frame and an extrusion device, the extrusion device including an upper punch and a lower punch for extruding tablets; guide rails are fixed to the upper and lower sides of the frame, and extrusion protrusions are provided on opposite sides of the two guide rails; a rotary motor is fixed to the center of the frame, the rotary motor is used to drive the extrusion device to rotate, and flexible extrusion sheets are fixed to the upper and lower parts of the extrusion device; a perforated turntable is fixedly connected below the rotary motor, and is characterized in that: The device further comprises a feeding device and a tablet discharge channel. The feeding device is fixed to the frame, one end of which is located above the perforated turntable and is used to add powder. The tablet discharge channel is fixed to the frame, one end of which is located above the perforated turntable and the other end of which extends downward. A cleaning device is fixed on the inner side of the frame, and the cleaning device is arranged between the sheet discharge channel and the feeding device. The cleaning device includes a cleaning wheel brush, a powder paddle, a powder dropout, a recovered powder outlet and a wheel brush motor. The cleaning wheel brush is located between the upper punch and the lower punch. There are two cleaning wheel brushes, which are driven by the wheel brush motor, and the two cleaning wheel brushes rotate in opposite directions and rotate toward the center side of the two cleaning wheel brushes; there are two powder paddles, which are located between the two cleaning wheel brushes and abut against the cleaning wheel brushes on both sides; a powder dropout is opened between the powder paddles; the top of the recovered powder is connected to the powder dropout, and its bottom outlet is connected to the exhaust fan.

2. The tablet press with cleaning function according to claim 1, characterized in that: The extrusion device also includes a perforated turntable and a die. The perforated turntable is fixedly connected to the bottom of the rotating motor. A plurality of dies are installed around the perforated turntable, and a hole is opened in the center of the die. There are multiple upper punches, which are fixed under the upper flexible extrusion sheet; there are multiple lower punches, which are fixed above the lower flexible extrusion sheet, and the opposite sides of the lower punches and the upper punches pass through the corresponding dies.

3. The tablet press with cleaning function according to claim 1, characterized in that: The film outlet channel includes a film outlet and a film drop rod. The film drop rod is located above the perforated turntable and forms an acute angle with the tangent direction of the rotation of the perforated turntable and the direction of the film drop rod. The film outlet is tilted upward and downward along the edge, and its top end is fixedly connected to the film drop rod, and the bottom end is detachably connected to a collection box.

4. The tablet press with cleaning function according to claim 2, characterized in that: The sheet discharging channel is connected to the frame via vertical bolts, and the distance between the sheet dropping rod and the perforated turntable can be adjusted by adding or removing spacers.

5. The tablet press with cleaning function according to claim 2, characterized in that: A baffle is fixed inside the frame and is arranged around the perforated turntable.

6. The tablet press with cleaning function according to claim 1, characterized in that: The feeding device includes a feed port, a feed channel, and a powder outlet; the feed port is laterally connected to the feed channel, and the feed channel is connected to the powder outlet away from the feed port. The powder outlet is a rectangular frame with upper and lower openings, and its bottom end is slidably connected to the perforated turntable.

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