CN209454238U - A kind of powder tablet press machine - Google Patents

Abstract

The utility model discloses a powder tablet press machine, which comprises a frame, a controller, a stamping mechanism, a feeding device and a tablet collecting device; the feeding device includes a hopper, and the hopper is fixed on the frame; Static pressure weighing sensor and solenoid valve; the stamping mechanism includes an upper punch, a turntable, a middle die hole and a lower punch, and a plurality of middle die holes are arranged at equal intervals on the turntable, and the upper punch is arranged directly above the middle die hole, The lower punch is set directly below the middle die hole; a speed sensor is installed on the turntable; a feeding pipe and a scraper are arranged on one side of the turntable and above the middle die hole; the tablet collection device includes a discharge chute, a collection box and a powder collection device; the collecting box is provided with a horizontal screen, and the screen is connected with a vibrating motor to drive the screen to vibrate horizontally. The utility model can improve the compressibility of the powder and the quality of the tablet by adjusting the feeding speed and the punching force, has high automation, simple structure, convenient use and high processing efficiency.

Description

A powder tablet press machine

technical field

The utility model relates to the technical field of tablet pressing equipment, in particular to a powder tablet pressing machine.

Background technique

Rotary tablet press is widely used in the pharmaceutical, food and chemical industries because of its high output, stable quality, and suitable for large-scale production. It is the main equipment for tablet production. During the operation of the rotary tablet press, since the actual punching force cannot be known, when the equipment continues to press tablets under severe sticking conditions, the upper punch and the lower punch will be severely worn, which will affect the service life of the equipment; In addition, because the particles of different powder materials are not uniform, and there are differences in density and properties between different raw materials, using the same feeding speed and punching force will easily cause the compressed tablets to fail to meet the requirements, the tablet compactness is poor, and the tablet is easy to loose ; In addition, because the feeding device is arranged on the top of the tablet press and is made of opaque materials, it is impossible to judge the amount of remaining powder in the hopper, and it is impossible to ensure timely feeding to ensure continuous production.

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a powder tablet press machine with simple structure, convenient operation and high processing efficiency.

The technical solution adopted by the utility model is: a powder tablet press machine, including a frame, a controller arranged in the frame, a stamping mechanism arranged above the controller, a feeding device arranged above the stamping mechanism and a The tablet collecting device on one side of the stamping mechanism, the feeding device includes a hopper; the hopper is fixed on the frame by a support frame; the outlet of the hopper communicates with the feed pipe of the stamping mechanism; the hopper discharges The mouth is provided with a static pressure weighing sensor and a solenoid valve; the static pressure weighing sensor is electrically connected to the sound and light alarm and the controller; the electromagnetic valve is electrically connected to the controller;

The stamping mechanism includes an upper punch, a turntable, a middle die hole and a lower punch; the turntable is provided with a plurality of middle die holes at equal intervals, the upper punch is arranged directly above the middle die hole, and the lower punch is arranged on the directly below the middle die hole; the upper punch, the turntable and the lower punch are all connected to the driving device, and the driving device is electrically connected to the controller; the upper punch and the lower punch reciprocate along the direction perpendicular to the turntable; A speed sensor is installed on the turntable, and the speed sensor is electrically connected to the controller; a feed pipe and a scraper are arranged on one side of the turntable and above the die hole.

Further, the tablet collecting device includes a discharge chute, a collection box and a powder collecting device; the discharge chute is placed obliquely, and its inclination angle can be adjusted; the discharge chute is connected with a scraper and a collection box, and pressed The formed tablet is scraped into the discharge chute by the scraper, and enters the collection box along the discharge chute under the action of gravity; the collection box is provided with a horizontal screen, and the edge of the screen and the inner wall of the collection box are provided. There is a gap; the screen is connected to a vibration motor, and the vibration motor is fixed on the outer wall of the collection box to drive the screen to vibrate horizontally; the bottom of the collection box is provided with a powder outlet.

Further, the bottom of the upper punch is provided with a height sensor and a pressure sensor, the height sensor can detect the filling height of the powder in the middle die hole, and the pressure sensor can measure the punching force between the upper punch and the lower punch. Detection: the pressure sensor is electrically connected to the pressure sensor overload protection device, and the pressure sensor overload protection device is electrically connected to the controller.

Further, the frame is provided with a dust cover; the dust cover is snap-fit connected with the frame; the dust cover is made of transparent material.

Further, a vibrator is provided on the discharge chute; the vibrator is electrically connected to the controller.

The beneficial effects of the utility model are: the discharge port of the hopper is connected with the feed pipe of the stamping mechanism, and a static pressure weighing sensor and a solenoid valve are arranged at the discharge port to more accurately measure the amount of powder in the hopper and control the The powder feeding speed ensures uniform feeding and solves the problem of uneven thickness of the pressed tablets; a pressure sensor is set to detect the pressure intensity of the upper punch and the lower punch during work to prevent the tablet from being affected by excessive punching range quality, it is also convenient for the operator to judge whether there is sticking phenomenon and the degree of sticking in time, and prolong the service life of the equipment; set up a screen to sieve the powder and press the tablet to improve the quality of the tablet, the powder can be recycled, saving Cost; the solenoid valve and each sensor are controlled by the controller, which can improve the compressibility of the powder and the quality of the tablet by adjusting the feeding speed and punching force. It has a high degree of automation, simple structure, convenient use and high processing efficiency. .

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Rack, 2. Hopper, 3. Support frame, 4. Static pressure weighing sensor, 5. Upper punch, 6. Turntable, 7. Middle die hole, 8. Lower punch, 9. Control Device, 10, feet, 11, scraper, 12, discharge chute, 13, collection box, 14, screen, 15, vibrating motor, 16, powder outlet.

Detailed ways

In order to understand the technical solution of the utility model more clearly, the utility model will be further described below in conjunction with the accompanying drawings.

A kind of powder tablet press machine as shown in Figure 1, comprises frame 1, is arranged on the controller 9 in frame 1, is arranged on the stamping mechanism above controller 9, is arranged on the feeding device and the setting above the stamping mechanism The tablet collecting device on one side of the punching mechanism, the feeding device includes a hopper 2; the hopper 2 is fixed on the frame 1 by a support frame 3; the outlet of the hopper 2 communicates with the feeding pipe of the punching mechanism ; The discharge port of the hopper 2 is provided with a static pressure load cell 4 and a solenoid valve; When the powder content in the hopper is lower than the set value, the sound and light alarm is activated to remind the operator to replenish the powder in time. When the powder content in the hopper 2 is determined to be lower than the threshold value, the data is transmitted to the controller 9, and the controller 9 Control the tablet press to stop working; the solenoid valve is electrically connected to the controller 9, and the controller 9 controls the opening of the solenoid valve to further adjust the falling speed of the powder to ensure uniform feeding.

The stamping mechanism includes an upper punch 5, a turntable 6, a middle die hole 7 and a lower punch 8; the turntable 6 is provided with a plurality of middle die holes 7 at equal intervals, and the upper punch 5 is arranged in the middle die hole 7 Directly above, the lower punch 8 is arranged directly below the middle die hole 7; the external dimensions of the upper punch 5 and the lower punch 8 are all matched with the external dimensions of the middle die hole 7; the upper punch 5, the turntable 6 and the lower punch 8 are all connected to the driving device, the driving device is electrically connected to the controller 9, and is driven uniformly by the driving device to ensure the synchronization of the movement of each component and improve the quality of the finished tablet tablet; the upper punch 5 and the lower punch The punch 8 reciprocates along the direction perpendicular to the turntable 6; the bottom of the upper punch 5 is provided with a height sensor and a pressure sensor, the height sensor can detect the filling height of the powder in the middle mold hole 7, and the pressure sensor can The punching force between the upper punch 5 and the lower punch 8 is detected; the pressure sensor is electrically connected to the pressure sensor overload protection device, and the pressure sensor overload protection device is electrically connected to the controller 9; the turntable 6 is equipped with a speed sensor, The speed sensor is electrically connected to the controller 9; a feed pipe and a scraper 11 are arranged on one side of the turntable 6 and above the middle die hole 7.

Preferably, the tablet collecting device includes a discharge chute 12, a collection box 13 and a powder collecting device 17; the discharge trough 12 is placed obliquely, and its inclination angle can be adjusted; the discharge chute 12 is connected with the scraper 11, The collection boxes 13 are connected, and the compressed tablets are scraped into the discharge chute 12 by the scraper 11, and enter the collection box 13 along the discharge chute 12 under the action of gravity; The device is electrically connected with the controller 9; the collection box 13 is provided with a screen 14 in a horizontal direction, and a gap is provided between the edge of the screen 14 and the inner wall of the collection box 13; the screen 14 is connected to a vibration motor 15, and the vibration The motor 15 is fixed on the outer wall of the collection box 13 for driving the screen 14 to vibrate horizontally; the bottom of the collection box 13 is provided with a powder outlet 16 .

Preferably, the frame 1 is provided with a dust cover; the dust cover is snap-fit connected with the frame 1; the dust cover is made of a transparent material; the bottom of the frame 1 is provided with four The feet 10 are used to fix the frame 1 on the ground by using the feet 10 .

Working principle: when in use, turn on the power to start the controller 9, then put the powder into the hopper 2, the controller 9 controls the opening of the solenoid valve, after the solenoid valve is opened, the powder will pass through the punching mechanism from the outlet of the hopper 2 The feed pipe enters the middle die hole 7 at a constant speed; in the initial state, the top of the lower punch 8 is flush with the bottom of the middle die hole 7, and when the powder falls to a certain height, the feed pipe continues to feed the lower die after the turntable 6 rotates. One feeding; the upper punch 5 moves downward through the driving device and enters the middle die hole 7 to squeeze the powder into tablets. After the pressing is completed, the upper punch 5 rises away from the middle die hole 7 under the action of the driving device And return to the original position, at the same time the lower punch 8 rises under the action of the driving device until its top is flush with the top of the middle die hole 7, so that the pressed tablet is ejected out of the middle die hole 7; when the driving device drives the turntable 6 to rotate The tablet will enter the discharge trough 12 under the action of the scraper 11, and enter the collection box 13 along the discharge trough 12 under the action of gravity, and then separate the powder from the tablet through vibratory screening, recover the powder raw material, and improve the tablet quality. The quality of the finished product.

The outlet of the hopper of the utility model communicates with the feed pipe of the stamping mechanism, and a static pressure weighing sensor and a solenoid valve are arranged at the outlet to more accurately measure the amount of powder in the hopper and control the feeding speed of the powder. , to ensure uniform feeding, and solve the problem of uneven thickness of the pressed tablets; set the pressure sensor to detect the pressure intensity of the upper punch and the lower punch when they are working, so as to prevent the impact of the tablet quality due to excessive punching range, and also facilitate The operator judges whether there is sticking phenomenon and the degree of sticking in time to prolong the service life of the equipment; set up a screen to screen the powder and press the tablet to improve the quality of the tablet, and the powder can be recycled to save costs; the solenoid valve and Each sensor is controlled by the controller, which can improve the compressibility of the powder and the quality of the tablet by adjusting the feeding speed and punching force. It has a high degree of automation, simple structure, convenient use and high processing efficiency.

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

Claims (5)

1. a kind of powder tablet press machine, including rack (1), the controller (9) being set in rack (1) are arranged on controller (9) The punching mechanism of side is arranged in the feeding device above punching mechanism and the tablet collection device of punching mechanism side is arranged in, It is characterized by: the feeding device includes hopper (2)；The hopper (2) is fixed on rack (1) using support frame (3)；Institute The feed pipe for stating hopper (2) discharge port and punching mechanism is interconnected；Hopper (2) discharge outlet is equipped with static pressure weighing and sensing Device (4) and solenoid valve；Static pressure weighing sensor (4) the electrical connection combined aural and visual alarm and controller (9)；The solenoid valve and control Device (9) electrical connection processed；

The punching mechanism includes upper punch (5), turntable (6), middle die hole (7) and low punch (8)；First-class of the turntable (6) Multiple middle die holes (7) are equipped with every ground, right above middle die hole (7), low punch (8) is arranged in middle die hole (7) for upper punch (5) setting Underface；The upper punch (5), turntable (6) and low punch (8) are all connected with driving device, and driving device is electrically connected with controller (9) It connects；The upper punch (5) and low punch (8) are along the direction reciprocating motion perpendicular to turntable (6)；It is equipped on the turntable (6) Velocity sensor, velocity sensor are electrically connected with controller (9)；Turntable (6) side and the setting above middle die hole (7) There are feed pipe and scraper plate (11).

2. powder tablet press machine according to claim 1, it is characterised in that: the tablet collection device includes blow tank (12), collecting box (13) and powder collection device (17)；Blow tank (12) slant setting, tilt adjustable section；It is described go out Hopper (12) is connected with scraper plate (11), collecting box (13), and the tablet of compression moulding is scraped through scraper plate (11) into blow tank (12), Enter collecting box (13) along blow tank (12) under the effect of gravity；The sieve of horizontal direction is equipped in the collecting box (13) (14), gap is equipped between the edge of sieve (14) and the inner wall of collecting box (13)；Sieve (14) connecting vibration motor (15), Vibrating motor (15) is fixed on collecting box (13) outer wall, for driving sieve (14) horizontal vibration；Collecting box (13) bottom It is arranged powder outlet (16).

3. powder tablet press machine according to claim 1, it is characterised in that: the bottom of the upper punch (5) is provided with height Sensor and pressure sensor, height sensor can the interior powder packed height of centering die hole (7) detected, pressure sensor energy Stamping press between upper punch (5) and low punch (8) is detected；The pressure sensor electrical connection pressure sensor overload Protective device, pressure sensor overload protection device are electrically connected controller (9).

4. powder tablet press machine according to claim 1, it is characterised in that: be provided with dust cover on the rack (1)；It is described Dust cover is that buckle-type is connect with rack (1)；The dust cover is made of transparent material.

5. powder tablet press machine according to claim 2, it is characterised in that: be provided with vibrator on the blow tank (12)； The vibrator is electrically connected with controller (9).