Combined cutter for removing bullet flash

Abstract

This utility model discloses a combined tool for removing burrs from propellant charges, comprising a blade head, a handle, and a blade block. The handle and blade head are axially connected, and the blade block is mounted on the blade head and has a double-edged structure. This utility model removes burrs from propellant charges by scraping. The scraping process ensures stable tool posture and good cut quality. Compared with manual operation, the chamfered edge of the deburred propellant charge is uniform in circumference and size, resulting in a perfect chamfer. It enables isolated operation of personnel and propellant, ensuring operator safety and improving efficiency. It can be widely applied to the deburring of propellant charges for various pyrotechnic devices.

Description

Technical Field

[0001] This utility model relates to the field of pyrotechnics manufacturing equipment technology, specifically to a combined cutting tool for removing flash from propellant charges. Background Technology

[0002] In the production of pyrotechnic products, the freshly pressed propellant charges need to undergo a deflashing process. Removing excess burrs and chamfering prevents damage during transport. However, this deflashing process was previously done manually by factory operators. Because manual handling of the propellant charges lacks stability and precise control over force and direction, the burrs are removed unevenly. Furthermore, this is a process requiring extreme caution from workers, further contributing to inefficiency. Therefore, manual deflashing has the following drawbacks:

[0003] 1. Safety cannot be guaranteed: When removing the burrs from the medicine column, the operator needs to hold the knife in one hand and the medicine column in the other, and use both hands to remove the burrs. During the removal process, the knife may generate sparks that could cause combustion and explosion.

[0004] 2. Affects product appearance quality: During operation, the hand needs to adjust the tool posture and cutting force in real time, which is not easy to control, resulting in uneven chamfer size and affecting the product appearance quality;

[0005] 3. Prolonged exposure to strong light and acetone odor can negatively impact health: Because the acetone cartridge is jet black, it requires strong background light to operate clearly, which can easily cause eye fatigue over time. Furthermore, the cartridge contains volatile chemicals; close contact with these chemicals can lead to inhalation of these volatile components, posing a health risk to the operator.

[0006] 4. Low production efficiency. Utility Model Content

[0007] The purpose of this utility model is to provide a combined tool for removing flash from medicine cartridges, so as to solve the technical problems of safety issues, low efficiency and inability to guarantee appearance quality in the existing flash removal technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] The present invention provides a combined tool for removing flash from medicine cartridges, comprising a blade head, a handle, and a blade block. The handle is axially connected to the blade head, and the blade block is mounted on the blade head. The blade block has a double-edged structure.

[0010] Furthermore, the blade body is designed with two locking elongated adjustment holes, which can lock the blade or adjust its position radially.

[0011] Furthermore, the tool holder is composed of a rotating shaft and a linkage shaft.

[0012] Furthermore, the cutter head includes a follower cutter holder and a fixed cutter holder, which are detachably connected. The fixed cutter holder has a through hole in the middle, and the follower cutter holder and the fixed cutter holder have small holes. A cutter block is installed on the follower cutter holder.

[0013] Furthermore, a rotating shaft is installed within the through hole, and the cutting blocks are mounted in a swept-back manner on the follower tool holder. The cutting blocks employ a double-block scraping method, with the blocks mounted on the movable tool holder in a circumferentially symmetrical arrangement. Each cutting block is radially adjustable to meet the deflashing requirements of different sized propellant charges.

[0014] Furthermore, the follower tool holder is connected to the fixed tool holder via bolts installed on the small hole and an elastic reset mechanism. The protrusions on the fixed tool holder and the recesses on the follower tool holder constitute a positioning structure.

[0015] Furthermore, the positioning structure has a clearance fit to ensure accurate centering of the follower tool holder and the fixed tool holder.

[0016] Furthermore, the bolts include several bolts of equal height, and the elastic reset mechanism is a spring.

[0017] Furthermore, the bolt consists of four bolts of equal height, which pass through the through hole of the fixed tool holder and are tightened with the follower tool holder. An elastic reset mechanism is installed between the follower tool holder and the fixed tool holder. Under the constraint of the four bolts of equal height, the follower tool holder can move bidirectionally along the axial direction with the fixed tool holder. The elastic reset mechanism is used to press the follower tool holder to ensure that the tool block and the medicament stick together during the scraping process.

[0018] Furthermore, the cutting block is made of cemented carbide. It has a quenching hardness of HRC80, resulting in a long service life; the cutting body is precision ground, the scraping edge maintains a sharp edge, and the surface roughness is Ra0.8.

[0019] Based on the above technical solution, the embodiments of this utility model can produce at least the following technical effects:

[0020] (1) The combined tool for removing flash from medicine columns provided by this utility model removes flash from medicine columns by scraping. The medicine column powder is compacted. The tool posture is stable during the scraping process, and the fracture quality is good. Compared with manual operation, the chamfer of the medicine column after removing flash is uniform and consistent in size, and the chamfer is perfect.

[0021] (2) The combined cutting tool for removing flash from medicine columns provided by this utility model adopts a follower head structure, which can automatically adjust and compensate for the positioning of the follower head according to the size change of the medicine column during the flash removal process, thereby reducing the fluctuation of the chamfer size of the medicine column and improving product quality.

[0022] (3) The combined cutting tool for removing flash from medicine columns provided by this utility model adopts double-blade scraping. The blades are installed on the movable blade holder and are arranged in a circumferentially symmetrical manner. Each blade is radially adjustable to meet the flash removal requirements of medicine columns of different specifications.

[0023] (4) The combined cutting tool for removing flash from medicated powder provided by this utility model adopts a swept-back installation position for the cutting tool, which increases the restoring force of the cutting tool when rotating during the scraping and chamfering operation, and enhances the stability and adaptive tracking ability of the cutting tool during cutting. The cutting tool is made of cemented carbide material, which has a long service life.

[0024] (5) The combined cutting tool for removing the flash of the explosive charge provided by this utility model realizes the isolation between the operator and the explosive charge, ensuring the safety of the operator, improving efficiency, and can be widely used in the removal of flash from various types of pyrotechnic products. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0027] Figure 2 This is an exploded view of the structure of an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the scraping direction of an embodiment of the present invention (the dotted line in the diagram represents the medicine column);

[0029] Figure 4 This is a drawing of the cutter outline of an embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the blade block in an embodiment of this utility model;

[0031] In the figure: 1. Cutting head 11. Fixed cutting head 12. Follower cutting head 13. Elastic reset mechanism 14. Bolt 15. Positioning structure 2. Cutting handle 21. Rotating shaft 22. Linkage shaft 3. Cutting block. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Example

[0035] like Figure 1-5 As shown, this utility model provides a combined tool for removing flash from medicine cartridges, including a blade head 1, a handle 2, and a blade block 3. The handle 2 is axially connected to the blade head 1, and the blade block 3 is mounted on the blade head 1. The blade block 3 has a double-edged structure.

[0036] In this embodiment, the tool holder 2 is composed of a rotating shaft 21 and a linkage shaft 22.

[0037] In this embodiment, the cutter head 1 includes a follower cutter holder 12 and a fixed cutter holder 11. The follower cutter holder 12 and the fixed cutter holder 11 are detachably connected. The fixed cutter holder 11 has a through hole in the middle. The follower cutter holder 12 and the fixed cutter holder 11 have small holes. The cutter block 3 is installed on the follower cutter holder 12.

[0038] In this embodiment, a rotating shaft 21 is installed inside the through hole, and the tool block 3 is mounted on the follower tool holder 12 in a swept-back manner.

[0039] In this embodiment, the follower tool holder 12 is connected to the fixed tool holder 11 through a bolt 14 installed on a small hole and an elastic reset mechanism 13. The protrusion on the fixed tool holder 11 and the recess on the follower tool holder 12 constitute a positioning structure 15.

[0040] In this embodiment, the bolt 14 includes four bolts of equal height, and the elastic reset mechanism 13 is a spring.

[0041] In this embodiment, the blade block 3 is made of cemented carbide material.

[0042] After applying the combined cutting tool for removing flash from medicinal cartridges, simply place the cartridge in the flash removal working position. The motor drives the rotating shaft to rotate, and then the entire cutting head moves down to the cutting position. The two cutting edges of each cutting block contact the inner and outer flash of the annular cartridge to perform a chamfering operation by scraping and cutting. The combined cutting tool has a centering and stabilizing effect under the action of the double cutting blocks and double edges. Under the action of the spring, the weight of the cutting head, radial clearance, and rotation, the cutting edge and the cartridge adaptively track, achieving flexible compensation.

[0043] The structures, functions, and connection forms disclosed herein can be implemented in other ways. For example, the embodiments described above are merely illustrative; multiple components may be combined or integrated into another component. Furthermore, the functional components in the various embodiments herein may be integrated into one functional component, or each functional component may exist physically separately, or two or more functional components may be integrated into one functional component.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A combined cutting tool for removing flash from medicinal cartridges, characterized in that, It includes a cutting head (1), a cutting handle (2) and a cutting block (3). The cutting handle (2) is axially connected to the cutting head (1). The cutting block (3) is mounted on the cutting head (1) and has a double-edged structure.

2. The combined cutting tool for removing flash from propellant charges according to claim 1, characterized in that, The tool holder (2) is composed of a rotating shaft (21) and a linkage shaft (22).

3. The combined cutting tool for removing flash from medicinal cartridges according to claim 1, characterized in that, The cutter head (1) includes a follower cutter holder (12) and a fixed cutter holder (11). The follower cutter holder (12) and the fixed cutter holder (11) are detachably connected. The fixed cutter holder (11) has a through hole in the middle. The follower cutter holder (12) and the fixed cutter holder (11) have small holes. The follower cutter holder (12) is equipped with a cutter block (3).

4. The combined cutting tool for removing flash from medicinal cartridges according to claim 3, characterized in that, A rotating shaft (21) is installed inside the through hole, and the cutting block (3) is mounted on the follower cutting block (12) in a swept-back manner.

5. The combined cutting tool for removing flash from propellant charges according to claim 3, characterized in that, The follower tool holder (12) is connected to the fixed tool holder (11) by a bolt (14) installed on the small hole and an elastic reset mechanism (13). The protrusion on the fixed tool holder (11) and the recess on the follower tool holder (12) constitute a positioning structure (15).

6. The combined cutting tool for removing flash from propellant charges according to claim 5, characterized in that, The bolt (14) includes several bolts of equal height, and the elastic reset mechanism (13) is a spring.

7. The combined cutting tool for removing flash from propellant charges according to claim 1, characterized in that, The blade block (3) is made of cemented carbide material.

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