Automatic powder tabletting mechanism

Abstract

The utility model discloses an automatic powder tabletting mechanism, which comprises a mold component, a pressing component, a feeding component and a discharging component, and is characterized in that the mold component is used for bearing materials and pressing and forming and at least comprises a plurality of tabletting molds which are annularly arranged at intervals; the tabletting assembly is used for driving the tabletting dies to rotate to enable the tabletting dies to receive materials in sequence, and tabletting the tabletting dies after receiving the materials in sequence; and the discharging assembly is used for discharging the tabletting mold. According to the utility model, when the discharging assembly sequentially puts sample powder into the mold assembly, the tabletting assembly compresses and forms the sample powder in the tabletting mold, and then manual demolding is carried out, so that a sample piece can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of powder tabletting, in particular to an automatic powder tabletting mechanism. Background Art

[0002] Powder tabletting is to make a sample into powder with a certain fineness, and then under specific conditions, press and form it to obtain a sample tablet with a certain strength and a smooth analysis surface without obvious cracks and other defects. In the existing tabletting process, mainly artificial workers add samples into a specific mold, and then use an artificial tabletting machine to complete the preparation of the sample tablet.

[0003] The existing artificial tabletting molds are complex, with high manufacturing and processing costs, and most of the tabletting processes are manual operations, which are cumbersome and have a large labor intensity. Content of the Utility Model

[0004] In view of the above problems, the present invention provides an automatic powder tabletting mechanism with higher automation and simpler operation.

[0005] The specific technical solutions are as follows:

[0006] An automatic powder tabletting mechanism, comprising:

[0007] A mold assembly for carrying materials and being pressed into shape, at least including a plurality of tabletting molds arranged at intervals in the circumferential direction;

[0008] A tabletting assembly for driving the tabletting molds to rotate so that the tabletting molds are sequentially fed with materials, and sequentially tabletting the tabletting molds after receiving materials; and

[0009] A feeding assembly for feeding materials into the tabletting molds.

[0010] Further, the tabletting mold includes a forming ring and a tabletting bottom mold, and the forming ring is detachably installed on the tabletting bottom mold.

[0011] Further, the tabletting mold further includes a positioning ring, the forming ring is buckled on the tabletting bottom mold through the positioning ring, and the positioning ring is detachably installed on the tabletting bottom mold.

[0012] Further, the positioning ring is detachably installed on the tabletting bottom mold by screws.

[0013] Further, the tabletting assembly includes a rotatable mold turntable, an upper punch, and a driving cylinder. A plurality of mold support holes are arranged at intervals in the circumferential direction on the mold turntable. The tabletting molds can be respectively and correspondingly inserted into the mold support holes. The upper punch is located above the mold turntable, and the driving cylinder is located below the mold turntable. The piston head of the driving cylinder can pass through the mold support hole and make the upper punch penetrate into the forming ring.

[0014] Further, the tablet pressing assembly further includes a limiting collar and a compression spring. The limiting collar is sleeved on the upper punch head and can slide reciprocally along the upper punch head. The two ends of the compression spring are respectively installed on the machine frame and the limiting collar.

[0015] Further, the feeding assembly at least includes a feeding hopper for containing materials, and the bottom of the feeding hopper is provided with a feeding port.

[0016] Further, the feeding assembly further includes a feeding screw installed in the feeding hopper.

[0017] Further, the feeding screw is located at the center line of the feeding hopper.

[0018] The beneficial effects of the above solution are as follows:

[0019] The automatic tablet press provided by the present utility model can realize automatic feeding, automatic tablet pressing, and automatic demolding, thus greatly reducing the labor intensity. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the tablet pressing structure provided in the embodiment of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of the tablet pressing assembly provided in the embodiment of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the feeding assembly provided in the embodiment of the present utility model.

[0023] In the drawings: 10, tablet pressing die; 11, forming ring; 12, tablet pressing bottom die; 13, positioning ring; 20, die turntable; 21, die supporting hole; 30, upper punch head; 40, driving cylinder; 50, limiting collar; 60, compression spring; 70, feeding hopper. Detailed Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0026] Next, the present utility model will be further described in conjunction with specific embodiments, but it is not a limitation of the present utility model.

[0027] Such as Figures 1 to 3As shown in the figure, the tablet pressing structure provided in the embodiment of the present utility model includes a die assembly, a tablet pressing assembly, and a feeding assembly; the die assembly is used to carry materials and be pressed into shape, and at least includes a plurality of tablet pressing dies 10 arranged at intervals in the circumferential direction; the tablet pressing assembly is used to drive the tablet pressing die 10 to rotate so that the tablet pressing die 10 receives materials in sequence, and sequentially presses the tablet pressing die 10 after receiving materials; the feeding assembly is used to feed the tablet pressing die 10.

[0028] In the present utility model, when the feeding assembly sequentially puts sample powder into the die assembly, the tablet pressing assembly then compresses and forms the sample powder in the tablet pressing die 10, and then manually demolds it to obtain a specimen sheet.

[0029] As a specific example, such as Figure 1 , Figure 3 As shown in the figure, the tablet pressing die 10 in the present utility model includes a forming ring 11 and a tablet pressing bottom die 12, and the forming ring 11 is detachably installed on the tablet pressing bottom die 12; the above-mentioned forming ring 11 can be made of a metal material, and it has a ring-shaped hollow structure. There is a sample cavity inside the ring-shaped forming ring 11. When the feeding assembly puts sample powder into the sample cavity and then compacts, forms, and demolds it, a specimen sheet can be obtained. Considering possible damage to components during the tablet pressing process, for the convenience of replacement and improvement of turnover rate, the above-mentioned tablet pressing die 10 may further include a positioning ring 13. The forming ring 11 can first be buckled to the tablet pressing bottom die 12 through the positioning ring 13, and then the positioning ring 13 is installed on the tablet pressing bottom die 12 by using screws to fix the forming ring 11. Under the above structure, each component can be replaced in time according to the damage situation.

[0030] As a specific example, such as Figure 1 , Figure 2As shown in the figure, the tablet pressing assembly of the present utility model includes a die turntable 20, an upper punch 30, and a driving cylinder 40. The above-mentioned die turntable 20 is rotatably installed on the frame, and a plurality of die support holes 21 are arranged at intervals along the circumferential direction on the die turntable 20. The tablet pressing dies 10 can be respectively and correspondingly inserted into the die support holes 21. The upper punch 30 is located above the die turntable 20, and the driving cylinder 40 is located below the die turntable 20. Under the above structure, when the sample powder is placed in the forming ring 11 of the tablet pressing die 10, the die turntable 20 rotates so that the tablet pressing die 10 containing the sample powder is located below the upper punch 30. Subsequently, the piston head of the driving cylinder 40 moves upward and penetrates into the die support hole 21 to support the tablet pressing die 10 and jack up the tablet pressing die 10. The upper punch 30 moves downward relatively and penetrates into the forming ring 11 in the tablet pressing die 10 to compact the sample powder. After holding the pressure for a period of time, the driving cylinder 40 moves downward to reset, and the tablet pressing die 10 is released on the die turntable 20. Subsequently, the die turntable 20 rotates, and after the operator takes out the tablet pressing die 10, the specimen piece is taken out. Under the above structure, in order to accurately release the tablet pressing die 10 and avoid accidental dropping of the tablet pressing die 10, the above-mentioned tablet pressing assembly may further include a limit collar 50 and a compression spring 60. The limit collar 50 is sleeved on the upper punch 30, and the limit collar 50 can slide reciprocally along the upper punch 30. The two ends of the compression spring 60 are correspondingly installed on the frame and the limit collar 50. Under the above structure, when the tablet pressing die 10 is located below the upper punch 30, the limit collar 50 is slightly higher than the tablet pressing die 10. When the driving cylinder 40 supports the tablet pressing die 10 and jacks it up, the positioning ring 13 quickly extends into the limit collar 50. Subsequently, as the tablet pressing die 10 continues to move upward, the limit collar 50 compresses the compression spring 60. After the upper punch 30 moves downward relatively and penetrates into the forming ring 11, the driving cylinder 40 stops operating. When the pressure holding is completed, the driving cylinder 40 moves downward, and the limit collar 50 gradually resets under the action of the compression spring 60. The positioning ring 13 finally exits from the limit collar 50, and the tablet pressing die 10 is released into the die support hole 21, thereby accurately releasing the tablet pressing die 10 by means of the limit collar 50.

[0031] As a specific example, as Figure 1 shown in the figure, the feeding assembly of the present utility model includes a feeding hopper 70. The feeding hopper 70 contains the sample powder, and its bottom has a feeding port, so that the sample powder is discharged through the feeding port. Further, in order to prevent the sample powder from caking and causing inability to feed, a feeding screw may be further provided in the feeding hopper 70. The feeding screw is vertically installed on the center line of the feeding hopper 70, so as to feed the material evenly by means of the feeding screw.

[0032] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model accordingly. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the content of the specification of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automatic powder tablet pressing mechanism, characterized in that, Including: A mold assembly for carrying materials and being pressed into shape, at least including a plurality of tablet pressing molds arranged at circumferential intervals; A tablet pressing assembly for driving the rotation of the tablet pressing molds to enable the tablet pressing molds to receive materials in sequence, and sequentially pressing the tablet pressing molds after receiving materials; and A material feeding assembly for feeding materials to the tablet pressing molds.

2. The automatic powder tablet pressing mechanism according to claim 1, characterized in that The tablet pressing mold includes a forming ring and a tablet pressing bottom mold, and the forming ring is detachably mounted on the tablet pressing bottom mold.

3. The automatic powder tablet pressing mechanism according to claim 2, wherein The tablet pressing mold further includes a positioning ring, the forming ring is buckled on the tablet pressing bottom mold through the positioning ring, and the positioning ring is detachably mounted on the tablet pressing bottom mold.

4. The automatic powder tablet pressing mechanism according to claim 3, characterized in that, The positioning ring is detachably mounted on the tablet pressing bottom mold by screws.

5. The automatic powder tablet pressing mechanism according to any one of claims 2-4, characterized in that, The tablet pressing assembly includes a rotatable mold turntable, an upper punch, and a driving cylinder. A plurality of mold support holes are arranged at circumferential intervals on the mold turntable. The tablet pressing molds can be respectively and correspondingly inserted into the mold support holes. The upper punch is located above the mold turntable, and the driving cylinder is located below the mold turntable. The piston head of the driving cylinder can pass through the mold support hole and enable the upper punch to penetrate into the forming ring.

6. The automatic powder tablet pressing mechanism according to claim 5, characterized in that, The tablet pressing assembly further includes a limiting collar and a compression spring. The limiting collar is sleeved on the upper punch, and the limiting collar can reciprocally slide along the upper punch. Two ends of the compression spring are correspondingly mounted on the machine frame and the limiting collar.

7. The automatic powder tablet pressing mechanism according to claim 1, characterized in that, The material feeding assembly at least includes a feeding hopper for containing materials, and the bottom of the feeding hopper has a feeding port.

8. The automatic powder tablet pressing mechanism according to claim 7, wherein, The material feeding assembly further includes a feeding screw installed in the feeding hopper.

9. The automatic powder tablet pressing mechanism according to claim 8, characterized in that, The feeding screw is located at the center line of the feeding hopper.

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