Quantitative tablet pressing mold for medicine tablets

Abstract

The utility model discloses a quantitative tablet pressing mold for medicine tablets, and relates to the technical field of medicine treatment. The device comprises a frame, a bottom plate, a forming die, an enclosure frame and a top plate, the bottom plate is arranged above the inner bottom face of the frame, a threaded rod is connected to the center of the bottom plate in a penetrating mode in a threaded mode, and first tabletting rods distributed at equal intervals are further fixed to the portion, located on the outer side of the threaded rod, of the upper end of the bottom plate; a forming die is further arranged above the bottom plate, forming holes corresponding to the first tabletting rods in number are formed in the forming die, and a vibration motor is fixed to the face, close to the inner wall of the frame, of the forming die. The upper end of the forming die is sleeved with an enclosure frame, and a second tabletting rod symmetrical to the first tabletting rod is fixed to the bottom face of the top plate. Through the arrangement of the top plate, the tablet pressing rod I, the tablet pressing rod II, the bottom plate, the screw rod, the forming die, the vibration motor and the enclosure frame, the problems that quantitative tablet pressing with consistent gram weight cannot be ensured, a batch tablet pressing function is lacked, and formed tablets cannot be completely taken out conveniently are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medicine processing, in particular to a quantitative tablet pressing die for medicine tablets. Background Art

[0002] Tablet compression is divided into granulation tableting and direct tableting. Granulation tableting refers to the process of pressing the drug powder and suitable excipients into granules through a granulation process (wet or dry method) and then pressing them into tablets. Direct powder tableting refers to the process of mixing drug powder with suitable excipients and directly pressing them into tablets without a granulation process. Its advantages are time saving, simple process, and suitable for drugs that are unstable to moisture and heat. However, as far as direct powder tableting is concerned, there are still the following disadvantages in actual operation:

[0003] The main disadvantage of direct tableting of powders is the poor fluidity of the powders, which can easily lead to inconsistent weights during batching, resulting in large differences in tablet weights, poor content uniformity, and even easy tablet breakage. It is difficult to ensure the consistency of the weight of each tablet, and it is impossible to achieve quantitative and accurate tableting operations.

[0004] Secondly, it takes a lot of powder to make tablets. If you only press one tablet at a time, it will waste time. Therefore, a batch tableting mold is needed.

[0005] Finally, when the powder is compressed into tablets, it becomes so compact that most of the tablet will remain in the mold, making it difficult to remove it without damaging it. Utility Model Content

[0006] The utility model aims to provide a quantitative tablet pressing mold for pharmaceutical tablets. By arranging a top plate, a tablet pressing rod 1, a tablet pressing rod 2, a bottom plate, a screw, a forming mold, a vibration motor, and a protective frame, the utility model solves the problems of being unable to ensure consistent quantitative tablet pressing weight, lacking a batch tablet pressing function, and being inconvenient to take out the formed tablets completely.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a quantitative tablet pressing mold for pharmaceutical tablets, comprising a frame, a bottom plate, a forming mold, a protective frame and a top plate, wherein a bottom plate is arranged above the inner bottom surface of the frame, a screw rod is connected with a through-thread at the center of the bottom plate, and a tablet pressing rod 1 distributed at equal intervals is fixed at the upper end of the bottom plate located outside the screw rod;

[0009] A forming mold is also arranged above the bottom plate, and forming holes corresponding to the number of the tablet pressing rods are arranged in the forming mold, and a vibration motor is fixed on one side of the forming mold close to the inner wall of the frame;

[0010] The upper end of the molding die is sleeved with a protective frame, and the end of the protective frame away from the vibration motor is penetrated and fixed with a medicine storage groove;

[0011] A top plate is also arranged above the enclosure frame, and a second tablet pressing rod symmetrical to the first tablet pressing rod is fixed on the bottom surface of the top plate.

[0012] Furthermore, symmetrically distributed brackets are fixed to the bottom of the base plate, and the bottom of the brackets is fixed to the inner bottom surface of the frame.

[0013] Furthermore, two groups of limiting rods are symmetrically fixed to the upper end of the bottom plate and are distributed on an outer side of the tablet pressing rod, and the upper ends of the limiting rods are fixed to the inner top surface of the frame.

[0014] Furthermore, symmetrical sets are fixed on both sides of the forming mold adjacent to the vibration motor, the interior of the top plate is provided with limiting holes equal to the number of limiting rods, the forming mold is sleeved on the outer periphery of the limiting rod through the set, and the top plate is sleeved on the outer periphery of the limiting rod through the limiting holes; the bottom surface of the protective frame contacts the set.

[0015] Furthermore, a hand wheel is fixed to the bottom end of the screw, and the top of the screw is rotatably connected to the center of the bottom surface of the forming mold.

[0016] Furthermore, a hydraulic cylinder is fixed to the top surface of the frame, and a hydraulic rod at the telescopic end of the hydraulic cylinder passes downward through the top of the frame and extends above the top plate. Support rods are fixed to the bottom of the outer periphery of the hydraulic rod in a circular array, and the bottoms of all the support rods are fixed to the upper end surface of the top plate.

[0017] Furthermore, a ring strip is fixed to the top surface of the first tablet pressing rod and the bottom surface of the second tablet pressing rod, and the cross section of the ring strip is a right triangle.

[0018] The utility model has the following beneficial effects:

[0019] The utility model solves the problem of quantitative tableting that cannot ensure consistent gram weight by arranging a top plate, a tablet pressing rod one, a tablet pressing rod two, a bottom plate, a screw, a forming die, a vibration motor, and a protective frame. First, if it is necessary to ensure that the gram weight of the formed tablets is consistent, the amount of ingredients before tableting needs to be consistent. Therefore, the height position of the forming die is controlled by the screw, and then the depth of the tablet pressing rod one extending into the forming hole in the forming die is controlled, and then the size of the volume of the forming hole is controlled. Subsequently, powder medicines can be added to the forming holes, and the protective frame is used for protection to prevent the powder from spilling. The vibration of the vibration motor is used to vibrate the powder medicines evenly, and the excess air is discharged to make it more compact, until no more can be added. At this time, the gram weight of the powder added in all the forming holes is consistent and evenly distributed. At this time, the tablet pressing rod two is pressed down to enter the forming holes to press the powder into tablets, and there will be no problems such as large tablet weight difference, poor content uniformity, and even easy cracking.

[0020] The utility model solves the problem of lack of batch tablet pressing function by arranging a tablet pressing rod 1, a tablet pressing rod 2, a bottom plate and a forming die; a plurality of matching tablet pressing rods 1, a tablet pressing rod 2 and forming holes are arranged, and tablet pressing operation is performed in the forming holes in the forming die, thereby realizing batch tablet pressing operation, and the forming die and other structures of corresponding specifications can be customized according to actual needs.

[0021] The utility model solves the problem of inconvenience in taking out the formed tablets completely by arranging a tablet pressing rod, a bottom plate, a screw rod and a forming die; after the tablet pressing is completed, it is only necessary to rotate the screw rod in the bottom plate to lower the forming die until the tablets on the tablet pressing rod are exposed, so that the tablets can be conveniently and completely taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0023] Figure 1 A three-dimensional diagram of a quantitative tableting die for a pharmaceutical tablet;

[0024] Figure 2 A structural diagram of the base plate and its related components;

[0025] Figure 3 It is the structural diagram of the forming mold and the enclosure frame;

[0026] Figure 4 This is a disassembled diagram of the forming mold and the enclosure frame;

[0027] Figure 5 This is the connection diagram between the hydraulic cylinder and the top plate;

[0028] Figure 6 It is a cross-sectional view of a tablet pressing rod 1.

[0029] Reference numerals:

[0030] 1. Frame; 2. Bottom plate; 201. Bracket; 202. Screw rod; 2021. Hand wheel; 203. Limit rod; 204. Tablet pressing rod 1; 2041. Ring strip; 3. Forming die; 301. Vibration motor; 302. Kit; 303. Forming hole; 4. Enclosure frame; 401. Medicine storage tank; 5. Top plate; 501. Tablet pressing rod 2; 502. Limit hole; 6. Hydraulic cylinder; 601. Hydraulic rod; 6011. Support rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] See also Figure 1-6As shown, the utility model is a quantitative tabletting mold for pharmaceutical tablets, comprising a frame 1, a bottom plate 2, a forming mold 3, a protective frame 4 and a top plate 5. The bottom plate 2 is arranged above the inner bottom surface of the frame 1, a screw rod 202 is threadedly connected to the center of the bottom plate 2, and a tabletting rod 204 distributed at equal intervals is fixed to the upper end of the bottom plate 2 located outside the screw rod 202;

[0033] The frame 1 is used as the main carrier to install various components, and the bottom plate 2 and the tablet pressing rod 204 thereon are used to press the tablets, and the height of the forming die 3 is adjusted by rotating the screw thread of the screw rod 202;

[0034] A forming mold 3 is also provided above the bottom plate 2, and forming holes 303 corresponding to the number of the tablet pressing rods 204 are provided in the forming mold 3, and a vibration motor 301 is fixed on one side of the forming mold 3 close to the inner wall of the frame 1;

[0035] The upper end of the molding die 3 is sleeved with a protective frame 4, and a medicine storage tank 401 is fixed through one end of the protective frame 4 away from the vibration motor 301;

[0036] The forming die 3 is used as the main place for tableting. The powder is added into the forming hole 303. When adding, the enclosure frame 4 is directly set on the forming die 3 to enclose the upper end of the forming die 3. Then, the powder medicine is poured into the forming die 3. At this time, the vibration motor 301 works to vibrate the powder entering the forming hole 303. Then, the remaining powder on the upper end surface of the forming die 3 is added into the forming hole 303 again, and vibrated again until the forming hole 303 is covered with powder and no more powder can be added. Then, the excess powder can be swept into the medicine storage tank 401 for temporary storage for the next batch of tableting.

[0037] A top plate 5 is also provided above the enclosure frame 4, and a second tablet pressing rod 501 symmetrical to the first tablet pressing rod 204 is fixed to the bottom surface of the top plate 5; after the powder is filled, the top plate 5 and the second tablet pressing rod 501 are controlled to descend until the second tablet pressing rod 501 extends into the forming hole 303 and presses the powder in the forming hole 303 into tablets.

[0038] The bottom of the bottom plate 2 is also fixed with symmetrically distributed brackets 201 , and the bottom of the brackets 201 is fixed to the inner bottom surface of the frame 1 ; the bottom plate 2 is fixed to the inner bottom surface of the frame 1 through the brackets 201 .

[0039] Two sets of limit rods 203 are symmetrically fixed to the upper end of the bottom plate 2 and are distributed outside the tablet pressing rod 1 204, and the upper ends of the limit rods 203 are fixed to the inner top surface of the frame 1;

[0040] Symmetrical sets 302 are fixed on both sides adjacent to the forming mold 3 and the vibration motor 301. The top plate 5 is provided with limiting holes 502 equal to the number of limiting rods 203. The forming mold 3 is sleeved on the outer periphery of the limiting rod 203 through the sets 302, and the top plate 5 is sleeved on the outer periphery of the limiting rod 203 through the limiting holes 502. The bottom surface of the enclosure 4 contacts the sets 302. After the enclosure 4 is sleeved on the forming mold 3, it will be supported by the sets 302 to prevent it from falling, and the upper end of the enclosure 4 is higher than the upper end of the forming mold 3.

[0041] By setting the limiting rod 203, during the lifting and lowering process of the top plate 5 and the forming mold 3, vertical lifting and lowering will be guaranteed without deviation, thereby preventing the pressing rod 1 204 and the pressing rod 2 501 from accurately entering the forming hole 303 during tableting.

[0042] A handwheel 2021 is fixed to the bottom end of the screw 202, and the top of the screw 202 is rotatably connected to the center of the bottom surface of the molding die 3; by rotating the screw 202 with the handwheel 2021, the screw 202 will rise and fall in the bottom plate 2, and the molding die 3 will be restricted by the limit rod 203 and cannot rotate, and will rise and fall in conjunction with the rotation of the screw 202.

[0043] A hydraulic cylinder 6 is fixed to the top surface of the frame 1, and a hydraulic rod 601 at the telescopic end of the hydraulic cylinder 6 passes through the top of the frame 1 downward and extends above the top plate 5. Support rods 6011 are fixed to the bottom of the outer periphery of the hydraulic rod 601 in a circular array, and the bottoms of all support rods 6011 are fixed to the upper end surface of the top plate 5;

[0044] The hydraulic cylinder 6 works to drive the hydraulic rod 601 to rise and fall, and the hydraulic rod 601 is fixed to the top plate 5 through the support rod 6011 to share the force, so that the downward pressure distribution is more uniform, thereby more stably driving the top plate 5 to rise and fall, and then the tablet pressing rod 501 is lowered for tablet pressing.

[0045] The top surface of the tablet pressing rod 204 and the bottom surface of the tablet pressing rod 2 501 are both fixed with a ring strip 2041, and the cross section of the ring strip 2041 is a right triangle; the setting of the ring strip 2041 can make the upper and lower ends of the pressed tablets form a chamfer effect, which is more beautiful.

[0046] The specific working principle of the utility model is as follows: first, according to the actual tablet dosage size required, the required gram weight is determined, and then the required mass of the corresponding powder is determined. The screw 202 in the bottom plate 2 is rotated first, and the screw 202 will rise and fall in the bottom plate 2, while the forming mold 3 will be restricted by the limit rod 203 and cannot rotate, so it will be lifted and lowered under the rotation of the screw 202, and the lifting height of the forming mold 3 is controlled, thereby controlling the depth of the tablet pressing rod 204 extending into the forming hole 303. The remaining space in the forming hole 303 is the amount of powder required to be filled. Subsequently, the enclosure frame 4 is directly mounted on the forming mold 3 to enclose the upper end of the forming mold 3. After the enclosure frame 4 is mounted on the forming mold 3, it will be supported by the kit 302 to prevent it from falling, and make the upper end of the enclosure frame 4 higher than the upper end of the forming mold 3. Subsequently, the powder medicine is poured in The upper end surface of the forming die 3 is on the inner side of the enclosure frame 4. At this time, the vibration motor 301 works to compact the powder entering the forming hole 303. Then, the remaining powder on the upper end surface of the forming die 3 is added into the forming hole 303 again and compacted again until the forming hole 303 is covered with powder and no more powder can be added. At this time, the compacted powder is all the components of the tablets required for subsequent compression. Then, the excess powder can be swept into the medicine storage tank 401 for temporary storage for the next batch of tablet compression. Then, the hydraulic cylinder 6 works to drive the hydraulic rod 601 to rise and fall. The hydraulic rod 601 is fixed to the top plate 5 by the support rod 6011, stably driving the top plate 5 to rise and fall, thereby causing the tablet pressing rod 2 501 to descend until the tablet pressing rod 2 501 enters the forming hole 303, presses the powder in the forming hole 303 into tablets, and completes the tablet compression operation.

[0047] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A quantitative tableting die for pharmaceutical tablets, comprising a frame (1), a bottom plate (2), a forming die (3), a protective frame (4) and a top plate (5), characterized in that: A bottom plate (2) is arranged above the inner bottom surface of the frame (1), a screw rod (202) is threadedly connected through the center of the bottom plate (2), and tablet pressing rods (204) distributed at equal intervals are fixed to the upper end of the bottom plate (2) outside the screw rod (202); A forming die (3) is also provided above the bottom plate (2), and forming holes (303) corresponding in number to the number of the tablet pressing rods (204) are provided in the forming die (3), and a vibration motor (301) is fixed on one side of the forming die (3) close to the inner wall of the frame (1); The upper end of the molding die (3) is sleeved with a protective frame (4), and an end of the protective frame (4) away from the vibration motor (301) is penetrated and fixed with a medicine storage groove (401); A top plate (5) is also provided above the enclosure frame (4), and a second tablet pressing rod (501) symmetrical to the first tablet pressing rod (204) is fixed to the bottom surface of the top plate (5).

2. The quantitative tableting mold for pharmaceutical tablets according to claim 1, characterized in that: The bottom of the base plate (2) is also fixed with symmetrically distributed brackets (201), and the bottom of the brackets (201) is fixed to the inner bottom surface of the frame (1).

3. The quantitative tableting mold for pharmaceutical tablets according to claim 1, characterized in that: Two groups of limiting rods (203) are symmetrically fixed to the upper end of the bottom plate (2) and are distributed outside the first pressing rod (204), and the upper ends of the limiting rods (203) are fixed to the inner top surface of the frame (1).

4. The quantitative tableting mold for pharmaceutical tablets according to claim 3, characterized in that: Symmetrical sets (302) are fixed on both sides of the forming mold (3) adjacent to the vibration motor (301); the top plate (5) is provided with a number of limiting holes (502) equal to the number of limiting rods (203); the forming mold (3) is sleeved on the outer periphery of the limiting rod (203) through the sets (302); and the top plate (5) is sleeved on the outer periphery of the limiting rod (203) through the limiting holes (502); and the bottom surface of the enclosure frame (4) contacts the sets (302).

5. The quantitative tableting mold for pharmaceutical tablets according to claim 1, characterized in that: A hand wheel (2021) is fixed to the bottom end of the screw rod (202), and the top of the screw rod (202) is rotatably connected to the center of the bottom surface of the forming mold (3).

6. The quantitative tableting mold for pharmaceutical tablets according to claim 1, characterized in that: A hydraulic cylinder (6) is fixed to the top surface of the frame (1), and a hydraulic rod (601) at the telescopic end of the hydraulic cylinder (6) passes downward through the top of the frame (1) and extends above the top plate (5). Support rods (6011) are fixed to the bottom of the outer periphery of the hydraulic rod (601) in a circular array, and the bottoms of all the support rods (6011) are fixed to the upper end surface of the top plate (5).

7. The quantitative tableting mold for pharmaceutical tablets according to claim 1, characterized in that: A ring strip (2041) is fixed to the top surface of the first tablet pressing rod (204) and the bottom surface of the second tablet pressing rod (501), and the cross section of the ring strip (2041) is a right triangle.

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