Medicine pressing device

Abstract

The utility model relates to the technical field of gunpowder production equipment, in particular to a gunpowder pressing device which comprises a die sleeve, an upper punch and a lower punch are arranged in the die sleeve in a lifting mode, a pressing cavity used for containing and pressing gunpowder grains is formed between the upper punch and the lower punch, the lower punch penetrates out of the die sleeve downwards, limiting pieces extending downwards are arranged on the two sides of the die sleeve, and the limiting pieces are arranged on the die sleeve. The downward extending length of the limiting piece is smaller than the length of the lower punch penetrating out of the die sleeve downwards, and the limiting piece is used for limiting the lower punch to be stressed to continue to rise to press the gunpowder grain when the lower punch rises till the lower end face of the lower punch is flush with the lower end face of the limiting piece. The device has the advantages that during pressing, the driving mechanism drives the lower punch to move upwards so as to press gunpowder grains, when the lower punch ascends to a preset position, the lower end face of the limiting piece abuts against the driving end of the driving mechanism or abuts against the lower punch so as to limit the limiting piece to continue to move upwards, and therefore the situation that the running distance of the lower punch is too large, and the gunpowder grains are pressed is avoided. Therefore, the density of the grain is too large, and safety accidents are avoided.

Description

Technical Field

[0001] This utility model relates to the field of gunpowder production equipment technology, and in particular to a gunpowder pressing device. Background Technology

[0002] Pyrotechnic agents are chemical agents that produce sound, light, and smoke effects when burned, and are widely used in fireworks, signal flares, and other fields.

[0003] In existing technology, the propellant column forming mold of gunpowder usually uses a hydraulic press to drive the downward movement of the punch to compress the loose powder, thereby forming the loose powder into gunpowder columns. Specifically, during the pressing process, the hydraulic press drive structure is usually controlled to drive the downward movement of the punch upward to press the loose powder. When the loose powder is compressed to the specified pressure, the hydraulic press needs to be stopped. At this time, the powder is in place. If the hydraulic press continues to move after reaching the specified pressure, it will cause the downward movement distance to be too large, resulting in excessive density of the propellant column, which may lead to a safety accident. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model proposes a drug pressing device.

[0005] This utility model is achieved through the following technical solution.

[0006] A gunpowder pressing device includes a mold sleeve, within which an upper punch and a lower punch are vertically movably disposed, and a pressing chamber for accommodating and pressing a gunpowder column is formed between the upper punch and the lower punch. The lower punch extends downward through the mold sleeve for being pushed upward by a drive mechanism to press the gunpowder column. Downwardly extending limiting members are provided on both sides of the mold sleeve, and the downward extension length of the limiting members is less than the downward extension length of the lower punch through the mold sleeve. The limiting members are used to restrict the lower punch from continuing to rise and press the gunpowder column after it rises to a point where its lower end face is flush with the lower end face of the limiting member.

[0007] As a further improvement of this utility model, it also includes a car model, which is used to connect to an external slide rail, and the mold sleeve and the limiting member are both disposed on the car model.

[0008] As a further improvement of this utility model, a fixing seat is provided on the lower side of the car model, and an installation cavity for accommodating and installing the mold sleeve is formed between the fixing seat and the car model.

[0009] As a further improvement of this utility model, the side wall of the mold sleeve is provided with a fixing boss, and the inner wall of the fixing seat and the upper opening therein are provided with a fixing step. The fixing step and the lower end face of the car model cooperate to form a slot. The slot is used to fix the fixing boss to restrict the upward or downward punch from driving the mold sleeve to move during the lifting process.

[0010] As a further improvement of this utility model, the lower punch includes a pressing part located inside the mold sleeve and a driving part extending downward through the mold sleeve, wherein the diameter of the driving part is smaller than that of the pressing part.

[0011] As a further improvement of this utility model, the driving part passes downward through the fixed seat, and the inner diameter of the channel through which the driving part passes through the fixed seat is adapted to the outer diameter of the driving part.

[0012] As a further improvement of this utility model, a washer is provided between the fixing seat and the mold sleeve.

[0013] As a further improvement of this utility model, the model car has countersunk holes on both sides, and the limiting member is detachably disposed in the countersunk hole. The limiting member includes a limiting end located in the countersunk hole and a top end disposed below the limiting end and extending downward through the countersunk hole.

[0014] The beneficial effects of this utility model are as follows: In this utility model, a limiting component is provided. During the pressing process, the driving mechanism drives the lower punch to move upward, thereby pressing the gunpowder column. When the lower punch rises to the predetermined position, the lower end face of the limiting component abuts against the driving end of the driving mechanism, or against the lower punch, to limit the limiting component from continuing to move upward, thereby preventing the lower punch from traveling too far, resulting in excessive gunpowder column density, and thus avoiding safety accidents. Attached Figure Description

[0015] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model patent;

[0017] Figure 2 This is a schematic diagram of the structure during the pressing process of an embodiment of this utility model patent;

[0018] Figure 3 This is a schematic diagram of the structure during mold removal in an embodiment of this utility model patent.

[0019] The following are the numbering symbols in the diagram: 1. Mold sleeve; 2. Upper punch; 3. Lower punch; 4. Pressing chamber; 5. Limiting component; 6. Car mold; 7. Fixing seat; 8. Fixing boss; 9. Washer; 10. Upper slider; 11. Lower slider. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0022] refer to Figures 1 to 3 The present utility model embodiment discloses that:

[0023] A gunpowder pressing device includes a mold sleeve 1. An upper punch 2 and a lower punch 3 are vertically and elliptically disposed within the mold sleeve 1. A pressing chamber 4 for accommodating and pressing a gunpowder pellet is formed between the upper punch 2 and the lower punch 3. The lower punch 3 extends downward through the mold sleeve 1 to be pushed upward by a drive mechanism (hydraulic press) to press the gunpowder pellet. The upper punch 2 can slide upward and disengage from the mold sleeve 1. Downwardly extending limiting members 5 are provided on both sides of the mold sleeve 1, and the downward extension length of the limiting members 5 is less than the downward extension length of the lower punch 3 through the mold sleeve 1. The limiting members 5 are used to limit... The lower punch 3 rises until its lower end face is flush with the lower end face of the limiting member 5, then continues to rise under pressure to press the gunpowder column. During pressing, the driving mechanism drives the lower punch 3 to move upward, thereby pressing the gunpowder column. When the lower punch 3 rises to the predetermined position, its lower end face is flush with the lower end face of the limiting member 5. The lower end face of the limiting member 5 abuts against the driving end of the driving mechanism or against the structure of the lower punch 3, thereby limiting the limiting member 5 to continue moving upward, thus preventing the lower punch 3 from traveling too far, resulting in excessive gunpowder column density, and thus avoiding safety accidents.

[0024] It also includes a vehicle model 6, which is used to connect to an external slide rail. The mold sleeve 1 and the limiting member 5 are both disposed on the vehicle model 6. Specifically, the vehicle model 6 is installed on the external slide rail and driven by a drive device. During the production process, after the powdered medicine is added to the medicine pressing device, the drive device drives the medicine pressing device of this application to the delivery drive mechanism (hydraulic press), thereby improving the medicine pressing efficiency.

[0025] Specifically, in this application, a fixing seat 7 is provided on the lower side of the car model 6, and an installation chamber for accommodating and installing the mold sleeve 1 is formed between the fixing seat 7 and the car model 6, that is, the mold sleeve 1 is installed between the car model 6 and the fixing seat 7; as shown in the figure, the fixing seat 7 is installed on the car model 6 by bolts, and the mold sleeve 1 is fixed in the car model 6 by the fixing seat 7. When it is necessary to replace or maintain the mold sleeve 1, the mold sleeve 1 can be removed by disassembling the fixing seat 7. The structure is simple and the disassembly and assembly are convenient.

[0026] Specifically, the mold sleeve 1 has a fixed boss 8 on its side wall, and the fixed seat 7 has a fixed step on its upper opening. The fixed step and the lower end face of the vehicle mold 6 cooperate to form a groove. The groove is used to fix the fixed boss 8 to restrict the upper punch 2 or the lower punch 3 from moving the mold sleeve 1 during the lifting and lowering process. During installation, the mold sleeve 1 is first installed on the fixed seat 7. At this time, the fixed boss 8 is just in contact with the fixed step. Then, the fixed seat 7 is installed on the lower side of the vehicle mold 6, so that the mold sleeve 1 is inserted into the vehicle mold 6 from bottom to top. At this time, the fixed step and the lower end face of the vehicle mold 6 cooperate to form a groove. The groove fixes the fixed boss 8 to restrict the upper punch 2 or the lower punch 3 from moving the mold sleeve 1 during the lifting and lowering process, thereby improving the stability of this pressing device.

[0027] Since this application requires controlling the upward movement of the lower punch 3, and the lower end of the lower punch 3 passes downward through the mold sleeve 1, it is necessary to prevent the lower punch 3 from falling out of the mold sleeve 1 during the conveying process. Based on this, the lower punch 3 includes a pressing part located inside the mold sleeve 1 and a driving part passing downward through the mold sleeve 1. The diameter of the driving part is smaller than that of the pressing part. The driving part passes downward through the fixed seat 7, and the inner diameter of the channel through which the driving part passes in the fixed seat 7 is adapted to the outer diameter of the driving part, so that the diameter of the pressing part is larger than the inner diameter of the channel through which the driving part passes in the fixed seat 7, thereby preventing the lower punch 3 from falling out of the mold sleeve 1.

[0028] A washer 9 is provided between the fixed seat 7 and the mold sleeve 1. The washer 9 is a copper washer 9, which is placed on the fixed seat 7. When assembling the lower punch 3 and the mold sleeve 1, it plays a buffering role to prevent the lower end face of the pressing part of the fixed seat 7 and the lower punch 3 from directly colliding with the fixed seat 7.

[0029] The model car 6 has recessed holes on both sides. The limiting member 5 is detachably installed in the recessed hole. The limiting member 5 includes a limiting end located in the recessed hole and a top end located below the limiting end and extending downward through the recessed hole.

[0030] Working principle:

[0031] 1. Pressing the medicine: Control the movement of the model 6 so that the model 6 drives the pressing device to the working plane of the hydraulic press. At this time, control the upper punch 2 to move upward and disengage from the mold sleeve 1, pour in the weighed powdered medicine, and then put the upper punch 2 back. At this time, control the upper slide block 10 of the hydraulic press to overlap with the upper surface of the pressing device, and control the lower slide block 11 of the hydraulic press to start working, pushing the lower punch 3 to move upward so that the pressing part of the lower punch 3 cooperates with the upper punch 2 to press the powdered medicine. When the specified pressure is reached, the hydraulic press stops working. At this time, the medicine is pressed in place, and the lower slide block 11 of the hydraulic press drives the lower punch 3 to move upward to the predetermined position (the upper end surface of the lower slide block 11 of the hydraulic press and the lower end surface of the limiting part 5 do not contact each other, and the distance is 0.1mm).

[0032] 2. Protection: If the hydraulic press continues to drive the lower punch 3 upward after reaching the specified pressure, after moving 0.1mm, the limiting member 5 will be under force (at this time, the lower end face of the limiting member 5 abuts against the upper end face of the lower slide block 11 of the hydraulic press, and the upper end face of the limiting member 5 abuts against the lower end face of the upper slide block 10 of the hydraulic press). At this time, the lower slide block 11 of the hydraulic press can no longer move upward, and the hydraulic press stops working, thus restricting the lower punch 3 from continuing to move upward. This can prevent the lower punch 3 from running too far, resulting in excessive density of the medicament and avoiding safety accidents.

[0033] 3. Demolding: The upper slide 10 of the hydraulic press moves upward and no longer coincides with the upper surface of the pressing device. The hydraulic press continues to work, pushing the lower punch 3 to continue moving upward. At this time, the limiting member 5 also moves upward with the lower punch 3. The movement continues until the medicine column is separated from the mold sleeve 1, and demolding stops. Then, the upper punch 2 is removed, and the medicine column can be taken out.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gunpowder pressing device, comprising a mold sleeve (1), wherein an upper punch (2) and a lower punch (3) are vertically and vertically disposed within the mold sleeve (1), and a pressing chamber (4) for accommodating and pressing a gunpowder column is formed between the upper punch (2) and the lower punch (3), characterized in that: The lower punch (3) extends downward through the mold sleeve (1) to be pushed upward by the drive mechanism to suppress the gunpowder column. The mold sleeve (1) is provided with downwardly extending limiting members (5) on both sides, and the downward extension length of the limiting member (5) is less than the length of the lower punch (3) extending downward through the mold sleeve (1). The limiting member (5) is used to restrict the lower punch (3) from continuing to rise and suppress the gunpowder column after it rises to the point where the lower end face of the lower punch (3) is flush with the lower end face of the limiting member (5).

2. The drug-pressing device according to claim 1, characterized in that: It also includes a car model (6), which is used to connect to an external slide rail. The mold sleeve (1) and the limiting member (5) are both disposed on the car model (6).

3. The drug-pressing device according to claim 2, characterized in that: A fixing seat (7) is provided on the lower side of the car model (6), and an installation cavity for accommodating the mold sleeve (1) is formed between the fixing seat (7) and the car model (6).

4. The drug-pressing device according to claim 3, characterized in that: The mold sleeve (1) has a fixed boss (8) on its side wall. The fixed seat (7) has a fixed step on its inner wall and at its upper opening. The fixed step and the lower end face of the car model (6) cooperate to form a slot. The slot is used to fix the fixed boss (8) to restrict the upper punch (2) or lower punch (3) from driving the mold sleeve (1) to move during the lifting process.

5. A drug-pressing device according to claim 4, characterized in that: The lower punch (3) includes a pressing part located inside the mold sleeve (1) and a driving part extending downward through the mold sleeve (1), wherein the diameter of the driving part is smaller than that of the pressing part.

6. A drug-pressing device according to claim 5, characterized in that: The drive unit passes downward through the fixed seat (7), and the inner diameter of the channel through which the drive unit passes in the fixed seat (7) is adapted to the outer diameter of the drive unit.

7. A drug-pressing device according to claim 6, characterized in that: A washer (9) is provided between the fixed seat (7) and the mold (1).

8. A drug-pressing device according to claim 2, characterized in that: The model car (6) has recessed holes on both sides. The limiting member (5) is detachably installed in the recessed hole. The limiting member (5) includes a limiting end located in the recessed hole and an abutting end located below the limiting end and extending downward through the recessed hole.

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