Device for fixing formed base

Abstract

The utility model relates to a device for fixing a forming base, and belongs to the field of explosive pressing forming. The die comprises a base (1), a cushion block (2), a fixing pin (3), a forming base (4) and a die barrel (5), a cylindrical bottom is arranged at the lower end of the base (1), a hollow cylindrical rod is arranged on the cylindrical bottom, the forming base (4) is of a variable-diameter hollow cylinder structure, the diameter of the upper end and the diameter of the lower end of the forming base (4) are smaller than that of a middle-section cylinder, and an annular groove is formed in the lower-end cylinder of the forming base (4). A hollow cylindrical rod body of the base (1) is sleeved with the lower portion of the forming base (4), annular grooves are formed in the upper end and the lower end of the outer side wall of a middle column body of the forming base (4), O-shaped sealing rings are arranged in the annular grooves, and the situation that due to the fact that the O-shaped sealing rings make contact with the inner side wall of the die barrel (5), the whole set of die is scrapped after the forming base moves due to damage of the O-shaped sealing rings is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medicine compression molding, specifically relates to a device for fixing molding base. BACKGROUND

[0002] In the actual medicine compression work of a certain type of medicine compression mold, the relative displacement of the molding base and the mold cylinder is mainly relied on the friction force provided by the O-shaped sealing ring on the molding base due to the adoption of vacuum extraction technology. The friction force provided by the O-shaped sealing ring is often insufficient after the wear or damage of the O-shaped sealing ring in the production process, which leads to the relative displacement of the molding base and the mold cylinder, thereby causing the mold to be unable to be removed and resulting in the scrapping of the entire tooling. CONTENT OF THE UTILITY MODEL

[0003] (I) Technical problem to be solved

[0004] The technical problem to be solved by the utility model is how to provide a device for fixing a molding base to solve the problem of displacement of the molding base in the vacuum extraction medicine compression process.

[0005] (II) Technical scheme

[0006] In order to solve the above technical problem, the utility model provides a device for fixing a molding base, which comprises: a base 1, a cushion block 2, a fixing pin 3, a molding base 4, and a mold cylinder 5.

[0007] The base 1 is arranged at the bottom, the lower end of the base 1 is provided with a cylindrical bottom, the cylindrical bottom is provided with a hollow cylindrical rod, the molding base 4 is arranged as a variable-diameter hollow cylindrical structure, the diameters of the upper and lower ends of the molding base 4 are smaller than the diameter of the middle cylindrical body, an annular groove is formed in the lower end cylindrical body of the molding base 4, and the molding base 4 is sleeved on the hollow cylindrical rod body of the base 1.

[0008] The cushion block 2 is arranged above the cylindrical bottom of the base 1, the cushion block 2 is arranged as two symmetrical semicircular ring cylindrical bodies, the hollow cylindrical rod on the base 1 is covered by the cushion block 2, a through hole is formed in the hollow cylindrical rod body on the base 1 at a position corresponding to one of the semicircular ring cylindrical bodies of the cushion block 2, the fixing pin 3 is arranged in the through hole, the fixing pin 3 is horizontally inserted from the outside of the cushion block 2 and penetrates through the base 1, and the end portion of the fixing pin 3 is arranged in the annular groove in the lower end cylindrical body of the molding base 4.

[0009] The mold cylinder 5 is sleeved outside the molding base 4 and is arranged at the bottom of the cushion block 2.

[0010] The outer sidewall of the middle cylindrical body of the molding base 4 is provided with annular grooves at the upper and lower ends, O-shaped sealing rings are arranged in the annular grooves, and the O-shaped sealing rings are in contact with the inner sidewall of the mold cylinder 5.

[0011] The diameter of the through hole formed in the base 1 at the position corresponding to the cushion block 2 is 11 mm.

[0012] The annular groove on the shaped base 4 is 11mm wide and 4mm deep.

[0013] The fixing pin 3 is a long cylindrical metal rod, which passes through the cushion block 2 and the base 1 and clamps the annular groove of the shaped base 4.

[0014] The fixing pin 3 is 10mm in diameter and 80mm in length.

[0015] (Three) beneficial effects

[0016] The device for fixing the shaped base avoids the displacement of the shaped base caused by the damage of the O-shaped sealing ring, which leads to the scrapping of the whole mold. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the mold cylinder of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation of the utility model is described in further detail below in combination with the drawings and examples.

[0020] The device for fixing the shaped base comprises a base 1, a cushion block 2, a fixing pin 3, a shaped base 4 and a mold cylinder 5.

[0021] The base 1 is arranged at the bottom and is installed on the working surface of an oil press to prevent the device from falling. The lower end of the base 1 is a cylindrical bottom, and a hollow cylindrical rod is arranged on the cylindrical bottom. The shaped base 4 is a variable-diameter hollow cylindrical structure, the diameters of the upper and lower ends of which are smaller than that of the middle section. An annular groove is arranged on the lower end of the shaped base 4, and the shaped base 4 is sleeved on the hollow cylindrical rod of the base 1.

[0022] The cushion block 2 is arranged above the cylindrical bottom of the base 1. The cushion block 2 is two tile-shaped metal blocks, which wrap the hollow cylindrical rod of the base 1. A through hole is arranged on the hollow cylindrical rod of the base 1 at a position corresponding to one half of the annular cylinder of the cushion block 2, and the fixing pin 3 is arranged in the through hole. The fixing pin 3 is inserted horizontally from the outside of the cushion block 2, passes through the base 1 and is arranged in the annular groove on the lower end of the shaped base 4.

[0023] The mold cylinder 5 is sleeved outside the shaped base 4 and is arranged at the bottom of the cushion block 2.

[0024] The outer lateral wall of the middle section cylinder of the shaped base 4 is provided with an annular groove at the upper end and the lower end, and an O-shaped sealing ring is arranged in the annular groove and is in contact with the inner lateral wall of the mold cylinder 5 through the O-shaped sealing ring.

[0025] The diameter of the through hole provided at the corresponding position of the base 1 and the cushion block 2 is 11 mm.

[0026] The annular groove on the shaped base 4 is 11 mm wide and 4 mm deep.

[0027] The fixing pin 3 is a long cylindrical metal rod, which passes through the cushion block 2 and the base 1 and clamps the annular groove of the shaped base 4.

[0028] The fixing pin 3 is 10 mm in diameter and 80 mm in length.

[0029] The shaped base 4 is seated on the base 1, the O-shaped sealing ring is embedded in the sealing groove of the shaped base 4, the cushion block 2 is erected on the base 1, then the mold cylinder 5 is sleeved on the shaped base 4, the fixing pin 3 passes through the cushion block and the base and clamps the annular groove of the shaped base 4, which is 11 mm wide and 4 mm deep, so as to prevent the shaped base 4 from being "sucked" into the mold cylinder 5 due to the negative pressure generated by the vacuumizing device and from being displaced.

[0030] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and deformations can be made without departing from the technical principle of the present application, and these improvements and deformations should also be regarded as the protection range of the present application.

Claims

1. A device for fixing a molded base, characterized in that, include: Base (1), pad (2), fixing pin (3), forming base (4), mold cylinder (5); The base (1) is set at the bottom, the lower end of the base (1) is set as a cylindrical bottom, and a hollow cylindrical rod is provided on the cylindrical bottom. The forming base (4) is set as a variable diameter hollow column structure, the diameter of its upper and lower ends is smaller than the diameter of the middle column. An annular groove is opened on the lower end column of the forming base (4). The forming base (4) is sleeved on the hollow cylindrical rod of the base (1) below. The pad (2) is set above the cylindrical bottom of the base (1). The pad (2) is set as two symmetrical semi-circular cylinders. The hollow cylindrical rod on the base (1) is covered by the pad (2). A through hole is opened on the hollow cylindrical rod on the base (1) at the position corresponding to one of the semi-circular cylinders of the pad (2). A fixing pin (3) is provided in the through hole. The fixing pin (3) is inserted horizontally from the outside of the pad (2), passes through the base (1), and its end is placed in the annular groove on the lower end of the cylindrical part of the molded base (4). The mold cylinder (5) is fitted over the outside of the molding base (4), and its bottom is placed on the pad (2).

2. The device for fixing the molded base as described in claim 1, characterized in that, The upper and lower ends of the outer side wall of the middle section of the molding base (4) are provided with annular grooves, and O-rings are provided in the annular grooves. The O-rings contact the inner side wall of the mold cylinder (5).

3. The device for fixing the molded base as described in claim 1, characterized in that, The diameter of the through hole opened at the corresponding position of the base (1) and the pad (2) is set to 11mm.

4. The device for fixing the molded base as described in claim 1, characterized in that, The annular groove on the molding base (4) is 11 mm wide and 4 mm deep.

5. The device for fixing the molded base as described in claim 1, characterized in that, The fixing pin (3) is set as a long cylindrical metal rod that passes through the pad (2) and the base (1) and locks the annular groove of the forming base (4).

6. The device for fixing a molded base as described in claim 1, characterized in that, The fixing pin (3) is set to have a diameter of 10mm and a length of 80mm.

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