Locking structure for tobacco cutter fan-shaped body, fan-shaped body assembly and tobacco cutter

Abstract

The utility model relates to the technical field of tobacco cutters, in particular to a locking structure for a tobacco cutter fan-shaped body, a fan-shaped body assembly and a tobacco cutter, which comprises a transmission shaft, a ratchet mechanism, a deflector rod and a reset spring, the ratchet mechanism is assembled on the transmission shaft, the reset spring is assembled in the ratchet mechanism, and the deflector rod penetrates out of the transmission shaft and the reset spring and is positioned in the ratchet mechanism. The ratchet mechanism comprises a first one-way fluted disc, a second one-way fluted disc and a cover plate structure, the first one-way fluted disc is fixedly assembled on the transmission shaft, the second one-way fluted disc is rotationally assembled on the transmission shaft, the reset spring is located between the cover plate structure and the second one-way fluted disc and arranged on the transmission shaft in a sleeving mode, and the cover plate structure is detachably installed on the transmission shaft. The device is used for installing and limiting the reset spring. The utility model discloses a reset spring, and aims to enable the reset spring to be convenient to mount and dismount through an improved gasket when the reset spring is mounted, and failure and other faults are not easy to occur in a long-term use process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tobacco cutter technical field especially relates to a tobacco cutter fan -shaped body locking structure, fan -shaped body subassembly and tobacco cutter. BACKGROUND

[0002] The sd5 tobacco cutter or the rc4 tobacco cutter is one of the key equipment on the tobacco making line, and its main function is to cut tobacco leaves into leaf tobacco meeting process requirements. Taking the sd5 tobacco cutter as an example, the sd5 tobacco cutter is composed of a feeding system, a copper chain, a knife door system, a knife sharpener, a knife roll, a vibrating conveyor and a knife feeding mechanism. The knife feeding mechanism is composed of a rotary joint, an air bag, a lever, a fan-shaped body assembly (including a feeding swing arm, a one-way bearing, a ratchet mechanism, a worm and worm gear, a knife feeding sleeve and a feeding screw), a feeding rod, a rotating body and a return spring. At the same time, the tobacco cutter also adopts a split type knife feeding piston design, and its principle is to realize the work of the knife feeding system through the cooperation of the piston and the air cylinder.

[0003] In the existing sd5 tobacco cutter fan-shaped body assembly, when the lever controls the disengagement and engagement of the ratchet mechanism, the lever needs to move in the ratchet mechanism, and the return spring installed in the ratchet mechanism is matched to realize the automatic engagement of the disengaged ratchet mechanism. The existing return spring is installed by cooperating with a washer and a snap spring. However, due to the small space gap between the washer and the ratchet mechanism, on the one hand, the snap spring is prone to failure during long-term operation, and on the other hand, it is not convenient to install and requires two people or both hands to operate, which is not convenient. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims to provide a tobacco cutter fan-shaped body locking structure, fan-shaped body subassembly and tobacco cutter, which can improve the installation and disassembly of the return spring through the improved washer, and is not prone to failure during long-term use.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A tobacco cutter fan-shaped body locking structure, comprising a transmission shaft, a ratchet mechanism, a lever and a return spring, the ratchet mechanism is assembled on the transmission shaft, the return spring is assembled in the ratchet mechanism, the lever passes through the transmission shaft and the return spring and is located in the ratchet mechanism, the ratchet mechanism comprises a first one-way tooth disc, a second one-way tooth disc and a cover plate structure, the first one-way tooth disc is fixedly assembled on the transmission shaft, the second one-way tooth disc is rotatably assembled on the transmission shaft, the return spring is located between the cover plate structure and the second one-way tooth disc and is sleeved on the transmission shaft, and the cover plate structure is detachably installed on the transmission shaft and is used for installing and limiting the return spring.

[0007] According to the above technical means, by installing the detachable cover plate structure on the transmission shaft, it is convenient to install and detach, and it is not easy to fail during long-term use.

[0008] Further, the cover plate structure comprises a cover plate body and a locking piece, the cover plate body is slidingly installed on the transmission shaft, the locking piece is assembled on the cover plate body, a clamping groove is formed on the transmission shaft, and the locking piece can be clamped in the clamping groove for detachable installation of the cover plate body.

[0009] According to the above technical means, by the cooperation of the locking piece and the clamping groove, the cover plate structure can be stably installed on the transmission shaft, so that the return spring is stably installed.

[0010] Further, the locking piece comprises a rotating shaft and a locking block, the rotating shaft is fixedly installed on the cover plate body, and the locking block is tightly fitted on the rotating shaft.

[0011] According to the above technical means, by the tight cooperation of the rotating shaft and the locking block, the locking and unlocking of the cover plate body can be realized by controlling the locking block, and the installation and disassembly are relatively simple.

[0012] Further, the locking piece comprises a first locking piece and a second locking piece, the first locking piece and the second locking piece are arranged on the same side of the cover plate body, and are used for detachable locking of the cover plate body in cooperation with the clamping groove.

[0013] According to the above technical means, by arranging two locking pieces, the locking effect can be improved, which is simple and practical.

[0014] Further, the first locking piece and the second locking piece are the same in structure.

[0015] Further, the first locking piece comprises a rotating shaft and a locking block, the rotating shaft is installed on the cover plate body and penetrates out of the cover plate body, and the locking block is tightly fitted on the rotating shaft.

[0016] According to the above technical means, by arranging the two locking pieces in the same structure, on the one hand, it is convenient to install, and on the other hand, the locking effect can be improved, and the failure of the locking block caused by the failure of one of them can be avoided.

[0017] Further, the locking block is arc-shaped.

[0018] According to the above technical means, by arranging the locking block in an arc shape, it is convenient to lock.

[0019] The application also discloses a fan-shaped body assembly comprising the locking structure for the fan-shaped body of the tobacco cutter.

[0020] According to the above technical means, by adopting the sector assembly with the above locking structure, the disassembly and subsequent maintenance of the sector assembly are facilitated.

[0021] The application further discloses a shredding machine comprising a shredding machine body and the sector assembly.

[0022] According to the above technical means, by adopting the shredding machine with the sector assembly, the operation convenience and efficiency of the shredding machine can be effectively improved, and the shredding machine is especially suitable for an sd5 shredding machine or an rc4 shredding machine.

[0023] The application adopting the above scheme has the following beneficial effects:

[0024] 1. In the application, the locking of the gasket on the transmission shaft is realized by the original snap spring, and the locking member is additionally arranged on the gasket, so that the gasket can be locked by controlling the state of the locking member when the gasket is installed on the transmission shaft. The gasket provided with the locking member is convenient to install and disassemble, and is not prone to failure in a long-term use process.

[0025] 2. In the application, the locking member is arranged as a rotating shaft and a locking block, and is installed in a tight fit manner, so that the locking and unlocking of the cover body can be realized by controlling the locking block, and the installation and disassembly are relatively simple and have high practicability.

[0026] 3. In the application, the locking member is arranged as two and has the same structure, which facilitates installation, improves the locking effect, and avoids the failure of the locking block due to the problem of one of the locking members. DETAILED DESCRIPTION

[0027] The application can be further illustrated by the non-limiting embodiments shown in the drawings.

[0028] Figure 1 is a structural schematic view of a transmission mechanism of a shredding machine in the embodiment of the application;

[0029] Figure 2 is a sectional structural schematic view of a locking structure for a sector of a shredding machine in the embodiment of the application;

[0030] Figure 3 is one of structural schematic views of a locking structure for a sector of a shredding machine in the embodiment of the application;

[0031] Figure 4 is the second of structural schematic views of a locking structure for a sector of a shredding machine in the embodiment of the application;

[0032] Figure 5 is the third of structural schematic views of a locking structure for a sector of a shredding machine in the embodiment of the application;

[0033] Main symbol element description,

[0034] 100, drive shaft; 110, clamping groove; 200, lever; 210, first spring; 300, ratchet mechanism; 310, first one-way tooth disc; 320, second one-way tooth disc; 330, fixed plate; 340, reset spring; 400, cover plate structure; 410, cover plate body; 420, locking piece; 421, locking block; 422, rotating shaft; 423, notch. DETAILED DESCRIPTION

[0035] The advantages and effects of the present application can be understood by those skilled in the art from the disclosure of the specification. It should be noted that the drawings provided in the following examples are only used for illustrative purposes, and the drawings are only schematic drawings and not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted.

[0036] In the drawings of the embodiments of the present application, the same or similar reference numerals correspond to the same or similar components. In the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, they are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, the terms used to describe the positional relationship in the drawings are only used for illustrative purposes, and should not be construed as limiting the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances, and in the description of the present application, the terms "first", "second" and the like are only used for differentiation, and should not be understood as indicating or implying relative importance.

[0037] It should be noted that the drawings provided in the following examples only illustrate the basic concept of the present application in a schematic manner, and the drawings only show the components related to the present application, not the number, shape and size of the components during actual implementation. The actual implementation of each component may be arbitrarily changed in shape, number and proportion, and the layout pattern of the components may be more complex.

[0038] As Figures 1-5As shown, the embodiment of the present application discloses a locking structure for a fan-shaped body of a tobacco cutter, which comprises a transmission shaft 100, a ratchet mechanism 300, a push rod 200 and a return spring 340. The ratchet mechanism 300 is assembled on the transmission shaft 100, the return spring 340 is assembled in the ratchet mechanism 300, and the push rod 200 passes through the transmission shaft 100 and the return spring 340 and is located in the ratchet mechanism 300.

[0039] The ratchet mechanism 300 comprises a first one-way tooth disc 310, a second one-way tooth disc 320 and a cover plate structure 400. The first one-way tooth disc 310 is fixedly assembled on the transmission shaft 100, the second one-way tooth disc 320 is rotatably assembled on the transmission shaft 100, and the return spring 340 is located between the cover plate structure 400 and the second one-way tooth disc 320 and is sleeved on the transmission shaft 100. The cover plate structure 400 is detachably mounted on the transmission shaft 100 and is used for mounting and limiting the return spring 340. By mounting the detachable cover plate structure 400 on the transmission shaft 100, the mounting and dismounting are facilitated, and failure and other faults are not prone to occur in a long-term use process.

[0040] In the embodiment, when the blade of the tobacco cutter needs to be replaced, the first one-way tooth disc 310 and the second one-way tooth disc 320 in the ratchet mechanism 300 are caused to disengage from each other by controlling the movement of the push rod 200, so that the ratchet mechanism 300 stops working and the replacement of the blade can be performed. When being reset, the first one-way tooth disc 310 and the second one-way tooth disc 320 are re-engaged under the action of the return spring 340 by reverse movement of the push rod 200, so that the first one-way tooth disc 310 and the second one-way tooth disc 320 can work again. When the first one-way tooth disc 310 and the second one-way tooth disc 320 disengage from each other, the return spring 340 is pressed by the cover plate structure 400, so that the return spring 340 can provide a force for restoring deformation when the first one-way tooth disc 310 and the second one-way tooth disc 320 are re-engaged.

[0041] In the embodiment, the ratchet mechanism 300 further comprises a fixed plate 330, the fixed plate 330 is fixedly connected with the back surface of the second one-way tooth disc 320 through bolts, the push rod 200 passes through the transmission shaft 100 and corresponds to the fixed plate 330, when the push rod 200 contacts the fixed plate 330 and continuously pushes the fixed plate 330, the second one-way tooth disc 320 can be driven to disengage from the first one-way tooth disc 310 through the fixed plate 330. In order to avoid hard contact between the push rod 200 and the fixed plate 330, a first spring 210 is sleeved on the end of the push rod 200.

[0042] In some embodiments, as Figures 2-5As shown, the cover plate structure 400 comprises a cover plate body 410 and a locking member 420. The cover plate body 410 is slidingly installed on the transmission shaft 100, and the return spring 340 is located between the cover plate body 410 and the second one-way tooth disc 320. The locking member 420 is assembled on the cover plate body 410. The transmission shaft 100 is provided with a clamping groove 110, and the locking member 420 can be clamped in the clamping groove 110, so as to detachably install the cover plate body 410, thereby stably installing the return spring 340.

[0043] In one exemplary embodiment, as shown in Figure 3 The locking member 420 comprises a rotating shaft 422 and a locking block 421. The rotating shaft 422 is fixedly installed on the cover plate body 410, and the locking block 421 is tightly or interference fitted on the rotating shaft 422. When not in use, the locking block 421 can be relatively stable with the rotating shaft 422. When in use, the locking block 421 can be rotated by force to be stably clamped in the clamping groove 110, thereby fixing the position of the cover plate body 410 and limiting the position of the return spring 340.

[0044] In this embodiment, the locking block 421 is arc-shaped, which is beneficial to the rotation of the locking block 421 and the connection with the clamping groove 110. The locking block 421 is provided with a through hole, and the rotating shaft 422 passes through the through hole. When the locking block 421 is tightly or interference fitted with the rotating shaft 422, a bushing or the like can be installed between the locking block 421 and the rotating shaft 422, so as to have greater friction and stability between the locking block 421 and the rotating shaft 422.

[0045] In another exemplary embodiment, as shown in Figures 4-5 The locking member 420 comprises a first locking member 430 and a second locking member 440. The first locking member 430 and the second locking member 440 are arranged on the left and right sides of the cover plate body 410, and are used to detachably lock the cover plate body 410 in cooperation with the clamping groove 110, so as to improve the locking effect and reduce the possibility of failure.

[0046] In some embodiments, the first locking member 430 and the second locking member 440 are the same in structure. Hereinafter, the first locking member 430 will be taken as an example for description. As shown, the first locking member 430 comprises a rotating shaft 422 and a locking block 421. The rotating shaft 422 is installed on the cover plate body 410 and passes through the cover plate body 410. The locking block 421 is tightly fitted on the rotating shaft 422, and is used to realize locking and unlocking of the locking block 421 in the clamping groove 110, so as to avoid failure of the locking block 421 due to problems of the locking block 421.

[0047] In some embodiments, the locking block 421 has a through hole, the rotating shaft 422 passes through the through hole and the cover plate body 410, the through hole is a stepped hole, so that the rotating shaft 422 is flush with the outer surface of the locking block 421 in the through hole, so that the structure is more compact and the occupied space is reduced. In order to reduce the improvement of the transmission shaft 100, thereby saving the process, the locking block 421 has a notch 423 at one end of the through hole, so that the locking block 421 of the first locking piece 430 and the locking block 421 of the second locking piece 440 can partially overlap, so that the two locking blocks 421 can be clamped into the original clamping groove 110 of the clamping spring, without widening the clamping groove 110.

[0048] In the embodiment, when the reset spring 340 is installed, the cover plate body 410 is sleeved on the transmission shaft 100, the inner side of the cover plate body 410 abuts against the reset spring 340, then the locking block 421 of the first locking piece 420 is manually or by wrench rotated, so that the locking block 421 is clamped on one side of the clamping groove 110, then the locking block 421 of the second locking piece 420 is manually or by wrench rotated, so that the locking block 421 is clamped on the other side of the clamping groove 110, thereby the position of the cover plate body 410 is relatively fixed; when unlocking is needed, the locking block 421 is reversely rotated to reset, which is simple and practical.

[0049] The application also discloses a fan-shaped body assembly comprising the locking structure for the fan-shaped body of the tobacco cutter in the above embodiment, and the fan-shaped body assembly adopting the locking structure is convenient to disassemble and maintain.

[0050] The application also discloses a tobacco cutter comprising a cutter main body and the fan-shaped body assembly in the above embodiment, and the fan-shaped body assembly is adopted in the sd5 tobacco cutter or the rc4 tobacco cutter, so that the operation convenience and efficiency of the tobacco cutter can be effectively improved.

[0051] The above embodiments are only used to illustrate the technical scheme of the application and are not limited, although the application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical scheme of the application can be modified or replaced equivalently without departing from the purpose and scope of the technical scheme of the application, and all should be covered in the scope of the claims of the application. The technical, shape and structure parts not described in detail in the application are known technologies.

Claims

1. A locking structure for a tobacco cutter sector, comprising a transmission shaft (100), a ratchet mechanism (300), a lever (200) and a return spring (340), the ratchet mechanism (300) is assembled on the transmission shaft (100), the return spring (340) is assembled in the ratchet mechanism (300), the lever (200) passes through the transmission shaft (100) and the return spring (340) and is located in the ratchet mechanism (300), characterized in that: The ratchet mechanism (300) comprises a first one-way tooth disc (310), a second one-way tooth disc (320) and a cover plate structure (400), the first one-way tooth disc (310) is fixedly assembled on the transmission shaft (100), the second one-way tooth disc (320) is rotatably assembled on the transmission shaft (100), the reset spring (340) is located between the cover plate structure (400) and the second one-way tooth disc (320) and is sleeved on the transmission shaft (100), and the cover plate structure (400) is detachably mounted on the transmission shaft (100) and used for mounting and limiting the reset spring (340). ​ 2. The locking structure for a shredder fan according to claim 1, characterized in that: The cover plate structure (400) comprises a cover plate body (410) and a locking piece (420), the cover plate body (410) is slidably mounted on the transmission shaft (100), the locking piece (420) is assembled on the cover plate body (410), the transmission shaft (100) is provided with a clamping groove (110), and the locking piece (420) is clamped in the clamping groove (110) and used for detachably mounting the cover plate body (410).

3. The locking structure for a shredder fan according to claim 2, wherein: The locking piece (420) comprises a rotating shaft (422) and a locking block (421), the rotating shaft (422) is fixedly mounted on the cover plate body (410), and the locking block (421) is tightly mounted on the rotating shaft (422).

4. The locking structure for a shredder fan according to claim 2, wherein: The locking piece (420) comprises a first locking piece (430) and a second locking piece (440), the first locking piece (430) and the second locking piece (440) are arranged on the same side of the cover plate body (410) and are used for detachably locking the cover plate body (410) in cooperation with the clamping groove (110).

5. The locking structure for a shredder fan according to claim 4, wherein: The first locking piece (430) and the second locking piece (440) are the same in structure.

6. The locking structure for a shredder fan according to claim 5, wherein: The first locking piece (430) comprises a rotating shaft (422) and a locking block (421), the rotating shaft (422) is mounted on the cover plate body (410) and penetrates through the cover plate body (410), and the locking block (421) is tightly mounted on the rotating shaft (422).

7. The locking structure for a shredder fan according to claim 3 or 6, wherein: The locking block (421) is in an arc shape.

8. A sector assembly, characterized by The locking structure comprises the fan-shaped body of the cutter according to any one of claims 1-7.

9. A tobacco shredder characterized by, The fan-shaped body assembly comprises the cutter body and the fan-shaped body according to claim 8.

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