JPH04116757U - Simple KBr tablet press - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a simple KBr tablet forming machine that can easily separate upper and lower dies and molds after forming KBr tablets. [Structure] A KBr tablet forming machine consisting of a lower die with a protrusion on the top, an upper die with a protrusion on the bottom, and a mold with holes for fitting these protrusions.
Grooves are provided in these upper and lower dies, and a removal rod having a spring action is provided between the die and the mold.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is based on potassium bromide ( KBr) A simple KBr tablet press for forming tablets.

0002

[Conventional technology]

In chemical analysis using an infrared spectrophotometer, wavelength selection is performed using a monochromator, etc. The beam passes through the sample container and is detected by a detector to perform quantitative analysis of sample components. especially When analyzing a solid sample using infrared rays, use a solid sample with excellent infrared transmittance. A homogeneous mixture with KBr is pressurized to form a tablet, which is then used as a sample container for analysis. There are many. Conventionally, when molding this KBr tablet, a preform as shown in Fig. 19 was used. This is done by step 20. That is, the lower die 3 with the formwork 2 placed on the stand 21 of the press 20 The upper die 5 is installed on the press bar 22, and the solid sample placed in the formwork 2 is placed on the press bar 22. The mixture of the material and KBr is pressurized by the handle 23 and molded. These upper and lower da As shown in FIG. 18, the chairs 3 and 5 and the formwork 2 have protrusions 5 on the upper and lower dies 5 and 3. a and 3a and when these protrusions are fitted into the holes 2a of the formwork 2, the relationship between the sample and KBr The structure is such that a gap is formed to create a pressure-molded product.

0003

[Problem that the idea aims to solve]

The solid sample and KBr are separated by the upper and lower dies 5 and 3 and the mold 2 as described above. When molding mixed tablets, the tablets are molded in the mold 2 because they are pressed with a considerable amount of force. The tablet tightly sticks to the surrounding mold 2 and the die surface and becomes difficult to separate. Furthermore, Samples and KBr powder may enter the gaps between the upper and lower dies 5 and 3 and the formwork 2. It acts like an adhesive and separates these dies 3 and 5 from the formwork 2 after molding. The problem is that it is quite troublesome. Conventionally, when separating the die and formwork, a wedge was used. The tablets were separated by prying them with a shaped die, but incorrect operation could damage the tablets. There was also the problem of doing so. This idea was made in view of these issues, The purpose is to easily separate the upper and lower dies and molds after forming the tablet. To provide a simple KBr tablet forming machine that can be used to form tablets without damaging them.

0004

[Means to solve the problem]

That is, in order to solve the above-mentioned problems, this invention uses a lower die with a protrusion on the upper part. A hole is drilled between the die and the upper die with a protrusion at the bottom to fit the protrusion into. In a simple KBr tablet forming machine adapted to form KBr tablets, the lower die A groove is provided on the upper surface and the lower surface of the upper die, and the groove has a spring action. It is characterized by the attachment of a bar.

[0005]

[Effect]

In the simple KBr tablet forming machine according to this invention using the above means, the sample and KBr are Put the mixture into the hole of the mold, fit the protrusion of the upper die and press it with a press to form a KBr tablet. When the press force is removed after forming, the upper die and the formwork, and the lower die and the formwork are separated. Since the urging force of the spring of the removal rod acts between them, they are difficult to stick to each other and are easy to remove. It will be easier to remove. In addition, if the removal rod cannot be removed with just the urging force of the spring, this If you apply force to the removal rod, it will come off easily.

[0006]

【Example】

Hereinafter, specific embodiments of this invention will be described with reference to the drawings.

[0007] Figure 1 is an overall plan view of a simple KBr tablet forming machine 1 according to this invention, and Figure 2 is a lower die. A vertical cross-sectional view of the part where the protrusion 3a of the base 3 is fitted into the hole 2a of the formwork 2, and FIG. FIG. 4 is a plan view of the base 3, and FIG. 4 is a longitudinal sectional view thereof. That is, on the surface of the lower die 3, Two grooves 3b and 3c are cut into the grooves 3b and 3c of the lower die 3. A removal rod 4 for removing the formwork is fitted and the formwork is placed on top. As described below, the removal The push rod 4 has a spring action.

[0008] In Figure 5, two grooves 3b and 3c are provided in the lower die 3, and a removal rod 4 is fitted into the formwork 2. Further, grooves 5b and 5c are provided on the lower surface of the upper die to connect the upper die to the upper die. 6 is a plan view when the removal rod 4 is placed between the groove and the groove, and FIG. 6 is a view taken along arrow A-A in FIG. FIG. As shown in these figures, the two removal rods 4, 4 are crossed in a cross shape. It will be convenient to remove it if it is placed in this state. Also, as shown in Figure 6 The sea urchin removal rods 4, 4 are formed into a slightly arched shape to act as a spring.

[0009] The simple KBr tablet forming machine according to this invention has the above-mentioned configuration, and the sample and Put the mixture with KBr into the hole 2a of the mold 2, fit the protrusion 5a of the upper die 5, and press Press to form KBr tablets. After molding, when the press force is removed, the upper die Between the die 5 and the formwork 2, and between the lower die 3 and the formwork 2, the springs of the removal rods 4, 4 are biased. Due to the force acting on them, they are less likely to stick to each other and are easier to remove. Furthermore, the above The two removal rods 4 are located between the upper die 5 and the formwork 2, and between the lower die 3 and the formwork 2. It may be fitted parallel to the top and bottom of the. In addition, the removal rod 4 cannot be removed with just the urging force as a spring. If not, they can be easily removed by applying force to these removal rods 4.

0010 Figures 7 to 12 show press forming using the simple KBr tablet forming machine according to this invention. This is another embodiment in which the upper and lower dies and the formwork are removed. And Figure 7 shows the KBr tablet. 8 is a plan view of the agent forming device portion, and FIG. 8 is a sectional view taken along the line BB in FIG. 7. This deformation In the embodiment, the presser metal fitting 7 is installed on the press base, while the presser metal fitting 7 shown in FIGS. A locking fitting 8 is pivotally mounted to the press bar 22 so as to be freely rotatable. In this example In this case, as shown in Figs. 9 and 10, the presser metal fittings 7 are initially placed slightly apart on the press table. After forming the KBr tablet, it is placed close to the lower die 3 as shown in Figures 7 and 8. 11, press the lower die 3 and the formwork 2, and press the press bar 22 as shown in FIG. The claws 8a and 8b of the locking metal fitting 8 pivotally connected to the press bar are locked to the lower surface of the upper die 5. -22 up. In this way, the lower die 3 and the formwork 2 are held together by the press plate 7. The upper die 5 is held by the locking fitting 8 of the press bar 22 and lifted upward. It can be removed easily. Note that the locking fitting 7 has a mold as shown in FIG. It may also be locked in a groove 2b provided in the frame 2.

[0011] Figures 13 to 17 show further modified examples of the simple KBr tablet press according to this invention. This is an example. FIG. 13 is a plan view of the upper die 5 seen from above, and FIG. 14 is a longitudinal cross-sectional view. However, in a modified embodiment in this case, two or more pieces are provided in the upper die 5 and the lower die 3. Drill upper holes 51 and 52 and 31 and 32, and make these hole diameters and distances the same. Two or more rods 11 and 12 are erected to fit into these holes separately. A removal tool 10 is provided. According to this embodiment, the lower side of the lower die 3 When the two rods 11 and 12 are inserted into the holes 31 and 32, only the lower die 3 will come off, and the next When the upper die 5 is inserted into the holes 51 and 52 from above, the upper die 5 and the formwork 2 are removed. In this case, a stand 15 may be placed as shown in FIG.

0012 In this modified embodiment, holes 51, 31, etc. are bored in the upper and lower dies 5, 3. The rod 11, etc. is inserted into the hole, but a hollow part 16a is provided as shown in Fig. 16. Install the stand 16 and insert the rods 11 and 12 into the holes 31 and 32 drilled in the lower die 3 in advance. After fitting the KBr tablet and molding it, remove the stand 16 and use these rods 18 etc. to form the mold 2. You can also try to poke it. In this case, as shown in Fig. 17, the rod 18 is used to connect the formwork 2 and the lower The chair 3 may be set upright and pushed against the press bar 22 with the cylindrical extractor 17.

[0013]

[Effect of the idea]

The simple KBr tablet forming machine according to this invention has the configuration described in detail above. After molding KBr tablets, it is extremely easy to remove the upper and lower dies and molds. Become. In addition, the KBr tablet forming machine according to this invention damages the formed tablets when removed. There will be no more damage.

[0014]

[Brief explanation of drawings]

FIG. 1 is an overall plan view of a simple KBr tablet forming machine according to this invention.

FIG. 2 is a vertical cross-sectional view of the part where the formwork is placed on the lower die.

FIG. 3 is a plan view of the lower die.

FIG. 4 is a vertical cross-sectional view of the lower die.

[Fig. 5] Two grooves are provided in the lower die to fit the removal rod and the formwork is placed thereon, and a groove is also provided on the lower surface of the upper die, and the removal rod is inserted between the top of the formwork and the grooves. FIG.

6 is a sectional view taken along the line AA in FIG. 5. FIG.

FIG. 7 is a plan view of a modified embodiment of the simple KBr tablet press according to the invention.

8 is a sectional view taken along the line BB in FIG. 7. FIG.

FIG. 9 is a plan view of a modified embodiment of the simple KBr tablet forming machine according to the present invention, with the presser metal fittings slightly separated.

FIG. 10 is a plan view of a modified embodiment of the simple KBr tablet forming machine according to the invention, and is a longitudinal cross-sectional view with the presser metal fittings slightly separated.

FIG. 11 is a longitudinal cross-sectional view of a modified embodiment of the simple KBr tablet forming machine according to the present invention, with a locking fitting attached to the press bar.

FIG. 12 is a longitudinal cross-sectional view of a modified embodiment of the simple KBr tablet forming machine according to the invention, with a locking fitting attached to the press bar, and a groove provided in the upper die.

FIG. 13 is a plan view of yet another modified embodiment of the simple KBr tablet press according to the invention.

FIG. 14 is a longitudinal cross-sectional view of yet another modified embodiment of the simple KBr tablet forming machine according to the invention.

FIG. 15 is a longitudinal cross-sectional view of yet another modified embodiment of the simple KBr tablet forming machine according to the present invention, showing a state in which dies and the like are separated using a table.

FIG. 16 is a longitudinal cross-sectional view of yet another modified embodiment of the simple KBr tablet forming machine according to this invention, in which an upper die and a mold are placed on a stand provided with a hollow part to form KBr tablets. FIG.

FIG. 17 is a longitudinal cross-sectional view of yet another modified embodiment of the simple KBr tablet press according to this invention, in which a cylinder is erected with two rods inserted into the holes of the lower die and attached to the press bar from above. It is an example figure in the case of pressing with a shape extractor.

FIG. 18 is a vertical cross-sectional view of a state in which conventional upper and lower dies and a mold for molding KBr tablets are assembled.

FIG. 19 is a schematic side view of a press for forming KBr tablets.

[Explanation of symbols]

2 Formwork 2a Formwork hole 2b Groove
3 Lower die 3a Projection 3b, 3c Groove 4 Removal rod 5 Upper die 5a Projection 5b, 5c Groove 7 Holding metal fitting 8 Locking metal fitting

Claims (1)

[Scope of utility model registration request] [Claim 1] A simple KBr tablet formed by forming a hole into which the protrusion is inserted between a lower die having a protrusion on the upper part and an upper die having a protrusion on the lower part. A simple KBr tablet press, characterized in that grooves are provided on the upper surface of the lower die and on the lower surface of the upper die, and a removal rod having a spring action is attached to the grooves.