Disassembling and assembling tool for circular knife of wheel type compound machine

Abstract

The utility model relates to the technical field of cigarette production, in particular to a wheel type compound machine circular knife disassembling and assembling tool. The device comprises a dismounting part and a limiting part, the disassembly and assembly part comprises a ball screw, and a disassembly and assembly hole used for being matched with a circular knife bolt is formed in the end of the ball screw. The limiting piece comprises a ball nut seat and a pressing structure, and the ball nut seat is arranged on the ball screw in a sleeving mode. The pressing structure comprises a fixed part and a movable part, wherein the fixed part is connected with the end, close to the disassembly and assembly hole, of the ball nut seat, the movable part is connected with the fixed part through an elastic piece, the axial direction of the elastic piece is parallel to the axial direction of the ball screw, and the movable part comprises an abutting part used for abutting against the circular cutter head. According to the device, the characteristic that the ball screw pair converts rotary motion into linear motion is utilized, so that the circular cutter head is pressed while the circular cutter bolt is rotationally disassembled and assembled, an operator does not need to exert pressing force again, and single-person operation is simpler and more effective.

Description

TECHNICAL FIELD

[0001] The utility model relates to cigarette production technical field especially relates to a wheel type compound machine round knife dismounting frock. BACKGROUND

[0002] At present, the tobacco cigarette composite section adopts the six round knives in the actual production operation process, and the wear speed of the round knives is greatly accelerated due to the production of the electromagnetic heating product, the damaged round knives can reduce the quality and the aesthetic degree of the cigarette cut, and can also cause the deviation of the composite path of the short cigarette section in the equipment, finally lead to the frequent cigarette blocking and shutdown of the equipment, greatly reduce the production efficiency and the product quality. At the same time, the round knife replacement needs two people to cooperate to complete at present, and the time and the labor are consumed, the shutdown time and the manpower cost of single shift operation are improved.

[0003] The patent file with the publication number CN216577677U discloses such a cigarette making machine round knife dismounting tool, which comprises a dismounting rod and a handle rod, the handle rod is in a hollow pipe structure, the dismounting rod is sleeved in the handle rod, and the dismounting rod and the handle rod are rotationally connected, one end of the handle rod is provided with a clamping seat, a fixing hole is formed in the clamping seat, and the fixing hole is matched with a bolt fixing seat on the round knife disc; one end of the dismounting rod close to the clamping seat is provided with a dismounting hole, and the inner side wall of the dismounting hole is matched with the outer side wall of the bolt on the round knife disc; the handle rod is used for limiting the rotation of the round knife disc, so as to facilitate the dismounting rod to rotate the bolt on the round knife disc.

[0004] When a single person uses the prior art, the operator needs to control the handle rod to apply force to the round knife disc with one hand and control the dismounting rod to rotate with the other hand, the operation directions and operation forces of the two hands are different, and the operator may be distracted during the operation process and cannot apply force to both hands, thereby affecting the dismounting effect. For example, in terms of strength, the operator is prone to relax the pressure of the handle rod on the round knife disc, so that the round knife disc itself is easily rotated during the dismounting of the bolt, resulting in that the bolt cannot be dismounted; in terms of angle, the operator cannot accurately hold the handle rod to keep the handle rod and the round knife disc vertical due to factors such as hand fatigue, and if the handle rod and the round knife disc are not vertical, the rotation center axis of the dismounting rod will be offset when the dismounting rod rotates in the handle rod, resulting in that the rotation of the bolt is offset, thereby affecting the dismounting effect of the bolt. UTILITY MODEL CONTENTS

[0005] The utility model solves the above problems, and provides a wheel type compound machine round knife dismounting frock which is convenient for a single person to accurately and effectively dismount.

[0006] The technical scheme for solving the problem of the utility model discloses a wheel type composite machine round knife dismounting and mounting tool, which comprises a dismounting and mounting part for dismounting and mounting round knife bolts and a limiting part for fixing a round knife disc, which is sleeved on the dismounting and mounting part; the dismounting and mounting part comprises a ball screw, and the end of the ball screw is provided with a dismounting and mounting hole for cooperating with the round knife bolt; the limiting part comprises a ball nut seat and a pressing structure, the ball nut seat is sleeved on the ball screw, and a ball is arranged between the ball nut seat and the ball screw; the pressing structure comprises a fixed part connected with one end of the ball nut seat close to the dismounting and mounting hole and a movable part connected with the fixed part through an elastic part in parallel with the axial direction of the ball screw, and the movable part comprises an abutting part for abutting against the round knife disc.

[0007] As a preferred embodiment of the utility model, the abutting part is provided with a first magnetic attraction block for magnetic attraction connection with the round knife disc.

[0008] As a preferred embodiment of the utility model, the utility model further comprises a sleeve sleeved on the limiting part, the ball nut seat is slidably connected with the sleeve, and the ball screw is rotatably connected with the sleeve.

[0009] As a preferred embodiment of the utility model, the end of the sleeve close to the dismounting and mounting hole is provided with a second magnetic attraction block for magnetic attraction connection with the round knife disc.

[0010] As a preferred embodiment of the utility model, the dismounting and mounting part comprises two ball screws, the ends of the two ball screws without the dismounting and mounting hole are connected, and the thread directions of the two ball screws are opposite.

[0011] As a preferred embodiment of the utility model, the ball screw is provided with a handle, and the handle is perpendicular to the axial direction of the ball screw.

[0012] As a preferred embodiment of the utility model, the ball screw is provided with a hand drill joint, and the hand drill joint is parallel to the axial direction of the ball screw.

[0013] As a preferred embodiment of the utility model, the hand drill joint is detachably connected with the dismounting and mounting hole.

[0014] As a preferred embodiment of the utility model, the fixed part comprises an axial ring groove, the movable part comprises an insertion ring inserted into the axial ring groove, and the insertion ring and the groove bottom of the axial ring groove are connected through a plurality of elastic parts.

[0015] As a preferred embodiment of the utility model, the ball nut seat is provided with a lubricating liquid channel.

[0016] The utility model discloses the beneficial effect:

[0017] 1. In this application, the characteristics of ball screw pair are used to convert the rotary motion into linear motion, so as to press the circular cutter disc while disassembling the circular cutter bolt, without the need for the operator to exert the pressing force, and the single-person operation is more simple and effective.

[0018] 2. In some embodiments, the tool is preliminarily fixed on the circular cutter disc by magnetic attraction, which assists the operator to lift the tool and maintain the perpendicularity of the tool and the circular cutter disc, thereby ensuring the disassembly effect.

[0019] 3. In some embodiments, two ball screws with different thread directions are provided for disassembly and installation respectively, which improves the practicability of the tool. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of one embodiment of a round knife dismounting tool for a wheeled composite machine;

[0021] Figure 2 is a structural schematic view of another embodiment of a round knife dismounting tool for a wheeled composite machine;

[0022] Figure 3 is a structural schematic view of another embodiment of a round knife dismounting tool for a wheeled composite machine;

[0023] In the figure: circular cutter bolt 11, circular cutter disc 12, ball screw 21, dismounting hole 211, ball nut seat 22, pressing structure 3, fixed part 31, movable part 32, elastic member 33, sleeve 4. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present application, and the technical scheme of the present application is further described in combination with the drawings, but the present application is not limited to these embodiments.

[0025] A round knife dismounting tool for a wheeled composite machine is used to dismount and install the circular cutter disc structure on the wheeled composite machine. Such a circular cutter disc structure is consistent with the prior art, such as Figure 1As shown, the device includes a rotatable material shaft, a base, a circular blade, a cover plate and a limiting block are sequentially arranged on the material shaft, and the base, the circular blade, the cover plate and the limiting block are not relatively rotatable with the material shaft, the circular blade is tightly abutted between the base and the cover plate, and the end of the material shaft is threadedly connected with the circular blade bolt 11. Herein, the cover plate, the circular blade and the base are collectively referred to as a circular blade disc 12. Since the material shaft is rotatable, when the circular blade bolt 11 is rotated and disassembled, the material shaft is easily rotated together, which affects the disassembly of the circular blade bolt 11. Therefore, the application provides a disassembly tool, which includes a disassembly part for disassembling the circular blade bolt 11, and a limiting part for fixing the circular blade disc 12, which is sleeved on the disassembly part. The principle is that the limiting part fixes the circular blade disc 12, so that the material shaft is not rotated, and then the circular blade bolt 11 can be rotated and disassembled.

[0026] In the application, a ball screw pair structure is first adopted, as shown in Figure 1 As shown, the disassembly part includes a ball screw 21, and the limiting part includes a ball nut seat 22, the ball nut seat 22 is sleeved on the ball screw 21, and a ball is arranged between the ball nut seat 22 and the ball screw 21, and a returner and a sealing ring are further arranged at both ends of the ball circulation. In some embodiments, the ball nut seat 22 is provided with a lubricating liquid channel for introducing lubricating liquid to reduce the noise generated during use of the ball screw pair, and also reduce the wear of the ball during rolling, thereby prolonging the service life.

[0027] The above part is a conventional ball screw pair structure, when the ball screw 21 rotates, the ball nut seat 22 can move linearly thereon, therefore, in the application, the ball screw 21 is used for rotating disassembly, and a disassembly hole 211 for cooperating with the circular blade bolt 11 is arranged at the end of the ball screw 21. Meanwhile, the ball nut seat 22 is used for tightly abutting the circular blade disc 12, and a pressing structure 3 is further arranged, the pressing structure 3 includes a fixed part 31 connected with one end of the ball nut seat 22 close to the disassembly hole 211, and a movable part 32 connected with the fixed part 31 through an elastic member 33 parallel to the axial direction of the ball screw 21, the movable part 32 includes an abutting part for abutting with the circular blade disc 12. In some embodiments, in order to avoid the elastic member 33 swinging along the non-axial direction to ensure the accuracy of the moving direction of the movable part 32, the fixed part 31 includes an axial ring groove, the movable part 32 includes an insertion ring inserted into the axial ring groove, the insertion ring is connected with the groove bottom of the axial ring groove through a plurality of elastic members 33, and the axial ring groove limits the moving direction of the insertion ring.

[0028] When disassembling, as shown in Figure 1As shown, the disassembly hole 211 of the ball screw 21 is fitted onto the round cutter bolt 11. At this time, based on the elastic action of the elastic element 33, the abutting part can also abut against the round cutter disc 12. Here, the abutting part can abut against the cover plate and / or the round cutter blade in the round cutter disc 12, generally abutting against the cover plate. Then, the ball screw 21 is rotated counterclockwise, and at the same time, the ball nut seat 22 moves to the left, driving the fixed part 31 to move to the left, causing the elastic element 33 to be compressed. The elastic element 33 has a tendency to expand to the left, thereby applying force to the movable part 32, thus pressing the movable part 32 tightly onto the round cutter disc 12. Therefore, the more the ball screw 21 is rotated, the greater the distance the ball nut seat 22 moves to the left, the greater the degree of compression of the elastic element 33, and the tighter the movable part 32 presses against the round cutter disc 12, so that the round cutter disc 12 and the material shaft will not rotate, thus completing the disassembly of the round cutter bolt 11.

[0029] In some embodiments, the inner ring shape and size of the movable part 32 can be controlled to be consistent with the outer ring shape and size of the limiting block in the circular cutter head structure, and the outer ring of the limiting block is non-circular, thereby further restricting the rotation of the circular cutter head 12.

[0030] Since the circular cutter head structure is usually vertically arranged, during disassembly, it is inevitable to lift the tooling to maintain the horizontal central axis of the tooling coincident with the horizontal central axis of the circular cutter bolt 11. Therefore, in some embodiments, the abutment portion of the movable part 32 is provided with a first magnetic block for magnetic connection with the circular cutter head 12, so as to simply fix the entire tooling onto the circular cutter head 12 in the initial stage of disassembly, assisting the operator in lifting the tooling, maintaining the perpendicularity of the tooling to the circular cutter head structure, so that the central axis of subsequent rotational disassembly coincides with the central axis of the circular cutter bolt 11, ensuring the disassembly effect. At the same time, since the ball screw 21 needs to rotate and the ball nut seat 22 needs to move, it is difficult for the operator to lift the tooling. Therefore, in some embodiments, such as Figure 2 As shown, it also includes a sleeve 4 fitted outside the limiting member. The ball nut seat 22 is slidably connected to the sleeve 4, and the sliding direction is parallel to the axial direction of the ball screw 21. The ball screw 21 and the sleeve 4 are rotatably connected through a rotating bearing. During disassembly, the operator can simply lift the sleeve 4. In some embodiments, the end of the sleeve 4 near the disassembly hole 211 is provided with a second magnetic block for magnetically connecting with the circular cutter head 12, so as to keep the sleeve 4 fixed and prevent it from being rotated by the ball screw 21.

[0031] Furthermore, the method of controlling the rotation of the ball screw 21 is not limited; in some embodiments, such as... Figure 2 As shown, the ball screw 21 has a disassembly hole 211 at its left end and a handle at its right end. The handle is perpendicular to the axial direction of the ball screw 21, and the operator controls the rotation of the ball screw 21 through the handle. In other embodiments, such as Figure 1As shown, the ball screw 21 is equipped with a hand drill connector on the right end. The hand drill connector is parallel to the axial direction of the ball screw 21. When in use, the hand drill connector is inserted into the drill chuck of the hand drill and fixed.

[0032] For a ball screw assembly, the rotation direction of the ball screw 21 corresponds to the movement direction of the ball nut seat 22. For example, if the ball screw 21 rotates counterclockwise, the ball nut seat 22 moves to the left; therefore, when the ball screw 21 rotates clockwise, the ball nut seat 22 will only move to the right. Thus, when a ball screw assembly can be used for counterclockwise disassembly, it cannot be used for clockwise installation. Figure 1 , Figure 2 The tooling shown is for disassembly only or installation only. To improve the usability of the tooling, in some embodiments, such as Figure 3 As shown, the assembly / disassembly component includes two ball screws 21. The ends of the two ball screws 21 that are not provided with disassembly / assembly holes 211 are connected, and the thread directions of the two ball screws 21 are opposite. When disassembly is required, the disassembly hole 211 at the left end is used to engage with the round knife bolt 11, and the tooling rotates counterclockwise (counterclockwise when viewed from right to left). Figure 3 (This is manifested as outward rotation). The left ball nut seat 22 moves to the left and abuts against the left circular cutter disc 12, while the right ball nut seat 22 moves to the right, but without any effect. When installation is required, the right-end removal hole 211 is used to mate with the circular cutter bolt 11, and the fixture rotates clockwise (clockwise when viewed from left to right). Figure 3 (This is manifested as an outward rotation), the ball bearing nut seat 22 on the right moves to the right and abuts against the circular cutter head 12 on the right.

[0033] In some embodiments, when setting up two sets of ball screw pairs, a handle is vertically installed at the connection point of the two ball screws 21 to control the rotation of the tooling. In other embodiments, a drill connector is used, and the drill connector is detachably connected to the unused disassembly hole 211. For example, during disassembly, the left disassembly hole 211 is used to mate with the round cutter bolt 11, and the right disassembly hole 211 is used to connect the drill connector and then to the drill. This detachable connection method is not limited. Since the round cutter bolt 11 is mostly a hexagonal bolt and the disassembly hole 211 is an internal hexagonal hole, the drill connector can be set as a hexagonal rod. In some embodiments, the drill connector and the disassembly hole 211 can be further controlled to magnetically connect.

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A wheel type compound machine round knife dismounting tool, comprising a dismounting piece for dismounting a round knife bolt (11), and a limiting piece sleeved outside the dismounting piece for fixing a round knife disc (12), characterized in that: the dismounting piece comprises a ball screw (21), and an end of the ball screw (21) is provided with a dismounting hole (211) for cooperating with the round knife bolt (11); the limiting piece comprises a ball nut seat (22) and a pressing structure (3), the ball nut seat (22) is sleeved on the ball screw (21), and balls are arranged between the ball nut seat (22) and the ball screw (21); the pressing structure (3) comprises a fixed part (31) connected to one end of the ball nut seat (22) close to the dismounting hole (211), and a movable part (32) connected to the fixed part (31) through an elastic piece (33) parallel to the axial direction of the ball screw (21) in the axial direction, and the movable part (32) comprises an abutting part for abutting against the round knife disc (12); the abutting part is provided with a first magnetic attraction block for magnetic attraction connection with the round knife disc (12); a sleeve (4) sleeved outside the limiting piece is further included, the ball nut seat (22) is in sliding connection with the sleeve (4), and the ball screw (21) is in rotating connection with the sleeve (4); an end of the sleeve (4) close to the dismounting hole (211) is provided with a second magnetic attraction block for magnetic attraction connection with the round knife disc (12); the dismounting piece comprises two ball screws (21), the ends of the two ball screws (21) not provided with the dismounting hole (211) are connected, and the thread directions of the two ball screws (21) are opposite; the ball screw (21) is provided with a handle, and the handle is perpendicular to the axial direction of the ball screw (21); the ball screw (21) is provided with a hand electric drill joint, and the hand electric drill joint is parallel to the axial direction of the ball screw (21); the hand electric drill joint is detachably connected with the dismounting hole (211); the fixed part (31) comprises an axial ring groove, the movable part (32) comprises an insertion ring inserted into the axial ring groove, and the insertion ring and the groove bottom of the axial ring groove are connected through a plurality of elastic pieces (33); and the ball nut seat (22) is provided with a lubricating liquid channel. ​ ​ ​ 2. The round knife dismounting tool of the wheel type compound machine according to claim 1, characterized in that: ​ 3. The round knife dismounting tool of claim 1, wherein: ​ 4. The round knife dismounting tool of claim 3, wherein: ​ 5. The round knife dismounting tool of claim 1, wherein: ​ 6. The round knife dismounting tool of claim 1 or 5, wherein: ​ 7. The round knife dismounting tool of claim 1 or 5, wherein: ​ 8. The round knife dismounting tool of claim 7, wherein: ​ 9. The round knife dismounting tool of claim 1, wherein: ​ 10. The round knife dismounting tool of claim 1, wherein: ​

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