Pressing mechanism and tobacco cutter

Abstract

The utility model relates to a hold-down mechanism and a tobacco cutter, and the hold-down mechanism comprises a rod body which is a long member; the boss is arranged on the periphery of the rod body in a protruding mode, the boss and the rod body are of an integrally-formed structure, and the circumferential section of the periphery of the boss is polygonal; the hand wheel is arranged on the rod body in a sleeving manner and can axially abut against one side of the boss; and the locking piece is arranged on the rod body, and the locking piece is matched with the boss to lock the hand wheel. According to the pressing mechanism provided by the embodiment of the invention, the boss is integrally formed on the rod body, the locking piece and the boss are matched to lock and press the hand wheel, the circumferential section of the periphery of the boss is polygonal, screwing can be conveniently conducted through tools such as a wrench through the boss, and therefore when the rod body is fastened or unscrewed, the hand wheel can be conveniently screwed through the boss. When the screw is screwed, the screw can be screwed by means of a tool, and then the hand wheel is used for procedure screwing, so that large stress is generated on the integrally-formed boss, the large stress is prevented from being generated on the hand wheel, and the stability of connection between the hand wheel and the rod body is effectively improved.

Description

Technical Field

[0001] This application relates to the field of auxiliary connector technology, and in particular to a clamping mechanism and a shredder. Background Technology

[0002] In the tobacco processing workshop of a cigarette factory, a shredder is used to shred tobacco leaves or stems. The shredder consists of a machine body and a head frame. The head frame can swing open. During operation, the head frame must be locked to the machine body. This locking is achieved through a handwheel-type clamping mechanism, which includes a locking rod and a handwheel. The handwheel is secured to the locking rod with a nut. By turning the handwheel, the locking rod passes through the head frame and screws into a threaded hole in the machine body, thus locking the head frame. To unlock, the handwheel is used. Simply unscrew the locking rod from the machine body. However, in actual operation, it has been found that due to the tightness requirements of the machine head frame, the clamping mechanism must apply a sufficiently high clamping force to the machine head frame. The force applied when turning the handwheel is usually higher than the torque of 85 N·m. On the one hand, it is more difficult for the operator to turn it. On the other hand, when a high torque is applied to the handwheel, the handwheel will also apply a high reverse force to the nut that is fastened to the locking rod. This can easily cause stripping between the nut and the locking rod, affecting the stability of the handwheel. Utility Model Content

[0003] The purpose of this application is to provide a clamping mechanism and a shredder, which provides a more stable clamping mechanism when locking the head frame of the shredder, thereby effectively solving the shortcomings of the prior art.

[0004] Therefore, this application provides a clamping mechanism, including:

[0005] The rod is a long, elongated component;

[0006] A boss protrudes from the outer periphery of the rod and is integrally formed with the rod. The outer circumferential cross-section of the boss is polygonal.

[0007] The handwheel is fitted onto the rod and can axially abut against one side of the boss;

[0008] A locking element is provided on the rod body, and the locking element and the boss cooperate to lock the handwheel.

[0009] In some possible implementations, the outer circumferential cross-section of the boss is hexagonal.

[0010] In some possible implementations, the rod body includes a first section and a second section, both of which are elongated components. A boss is located between the first and second sections, and a handwheel and a locking element are both fitted onto the first section.

[0011] In some possible implementations, both the first segment and the second segment are elongated cylindrical rods, and the first segment and the second segment are coaxially arranged.

[0012] In some possible implementations, the locking element includes a nut that is threaded into a first section to lock the handwheel.

[0013] In some possible implementations, both the lever and the handwheel are provided with keyways so as to restrict the relative circumferential movement of the handwheel and the lever by means of keys.

[0014] In some possible implementations, the handwheel includes an inner sleeve and an outer wheel body, both of which are annular. The diameter of the outer wheel body is larger than that of the inner sleeve. A connecting rib is provided between the inner sleeve and the outer wheel body to connect them. The inner sleeve is fitted onto the rod body and can axially abut against the boss.

[0015] In some possible implementations, the inner sleeve and the outer wheel are coaxially arranged, and there are multiple connecting ribs, which are evenly distributed in the circumferential direction relative to the axis of the inner sleeve.

[0016] In some possible implementations, a connecting plate is also included, and the number of connecting plates is two. When the two connecting plates are aligned, they can form a mounting hole through which the rod passes.

[0017] On the other hand, this application embodiment also provides a shredder, including the above-mentioned pressing mechanism, wherein the rod is mounted on the shredder via two connecting plates.

[0018] According to the clamping mechanism provided in the embodiments of this application, a boss is integrally formed on the rod body. The locking member and the boss cooperate to lock and clamp the handwheel. Moreover, the outer circumferential cross section of the boss is polygonal, which facilitates tightening with tools such as wrenches. Therefore, when tightening or loosening the rod body, tools can be used to tighten it first, and then the handwheel can be used for tightening. This makes the greater stress occur on the integrally formed boss, and avoids the occurrence of greater stress on the handwheel, effectively improving the stability of the connection between the handwheel and the rod body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the clamping mechanism provided in the embodiments of this application;

[0020] Figure 2 An exploded view of the clamping mechanism provided in the embodiments of this application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] like Figures 1-2 As shown in the illustration, this application provides a clamping mechanism applied to a shredder. In the tobacco processing workshop of a cigarette factory, a shredder is used to cut tobacco leaves or stems into leaf or stem shreds. The shredder includes a machine body and a head frame, with the head frame hinged to the machine body. By swinging the head frame, the head frame can be opened to the machine body or closed. When the head frame is closed to the machine body, the head frame and the machine body are locked together by a clamping mechanism. The clamping mechanism includes a locking rod and a handwheel. The handwheel is mounted on the locking rod via a nut. The locking rod passes through the head frame and is threaded into the machine body, thereby locking the head frame. In actual operation... In this situation, to ensure sufficient locking strength of the machine head frame, the locking rod must generate a sufficiently large axial locking strength on the machine head frame and the machine body. When tightening, the torque applied to the handwheel is usually greater than 85 N·m, which is laborious. Moreover, due to the large force on the handwheel, the handwheel will also exert circumferential and axial reaction forces on the nut that is fastening the handwheel. This can easily cause the nut and the locking rod to loosen or even cause the mating threads between the nut and the locking rod to strip, affecting the stability of the handwheel on the locking rod. The clamping mechanism provided in this application aims to improve the overall structural strength, avoid the above defects, and improve the connection stability between the handwheel and the locking rod.

[0023] The clamping mechanism includes a rod 100 and a handwheel 200. The rod 100 is an elongated component with a certain length. A boss 11 is provided on the rod 100, protruding from the outer periphery of the rod 100. The boss 11 and the rod 100 are integrally formed. The outer circumferential cross-section of the boss 11 is polygonal. The handwheel 200 can be fitted onto the rod 100 and is movably fitted onto the rod 100. After being mounted, one side of the handwheel 200 can axially abut against one side of the boss 11. It also includes a locking member 300, which is mounted on the rod body 100. The locking member 300 and the boss 11 cooperate to lock the handwheel 200. The locking member 300 can abut against one side of the handwheel 200, so that the other side of the handwheel 200 abuts against the boss 11. The locking member 300 and the boss 11 cooperate to clamp the handwheel 200, realizing the installation connection between the handwheel 200 and the rod body 100.

[0024] In this embodiment, since the boss 11 and the rod 100 are integrally formed, and the outer circumferential surface of the boss 11 is polygonal, it is convenient to screw the boss 11 with tools such as a wrench, and then screw the rod 100. Therefore, when locking the head frame of the shredder through the rod 100 and the handwheel 200, the handwheel 200 can be screwed first, and in the final tightening stage, a large tightening force is applied to the rod 100 through the cooperation of the wrench and the boss 11. Similarly, when it is necessary to open the head frame of the shredder, the rod 100 is screwed first through the cooperation of the wrench and the boss 11 to loosen the rod 100, and then the handwheel 200 is screwed. In this way, large stress is avoided at the handwheel 200. The large stress occurs at the integrally formed boss 11, which can prevent the handwheel 200 and the rod 100 from loosening, and effectively improve the connection strength between the handwheel 200 and the rod 100.

[0025] Preferably, the outer circumferential cross-section of the boss 11 is hexagonal, which makes it easier for the wrench to engage with the boss 11 at multiple angles, making the tightening operation more convenient.

[0026] In one embodiment, the rod 100 includes a first section 101 and a second section 102. Both the first section 101 and the second section 102 are elongated components with a certain length. The length direction of the first section 101 is parallel to the length direction of the second section 102. The boss 11 is located between the first section 101 and the second section 102, that is, the boss 11 is set at the connection between the first section 101 and the second section 102. The handwheel 200 and the locking member 300 are both sleeved on the first section 101. During installation, the handwheel 200 is first sleeved on the first section 101 and abuts against one side of the boss 11. Then, the locking member 300 is sleeved on the first section 101 to press the handwheel 200 against the boss 11, thereby realizing the installation of the handwheel 200.

[0027] More preferably, both the first section 101 and the second section 102 are long round rods, and the first section 101 and the second section 102 are coaxially arranged. The locking member 300 includes a nut, which is threadedly engaged with the first section 101. The nut can be screwed onto the first section 101, and by screwing the nut, the handwheel 200 is pressed tightly against the boss 11. The nut and the boss 11 cooperate to clamp the handwheel 200, thereby realizing the installation of the handwheel 200, which is more convenient.

[0028] More preferably, keyways are provided on both the handwheel 200 and the lever 100 so as to restrict the relative circumferential movement of the handwheel 200 and the lever 100 by means of keys.

[0029] In one example, the handwheel 200 includes an inner sleeve 201 and an outer wheel body 202, both of which are annular. The diameter of the outer wheel body 202 is larger than that of the inner sleeve 201. The outer wheel body 202 is larger than that of the inner sleeve 201. On the projection of the inner sleeve 201 along its axial direction, the outline of the outer wheel body 202 fits over the outline of the inner sleeve 201. A connecting rib 203 is provided between the inner sleeve 201 and the outer wheel body 202 to connect them to each other. One side of the connecting rib 203 is connected to the outer periphery of the inner sleeve 201, and the other side of the connecting rib 203 is connected to the inner periphery of the outer wheel body 202, thereby connecting the inner sleeve 201 and the outer wheel body 202. The inner sleeve 201 can fit on the rod 100 and can axially abut against the boss 11.

[0030] More preferably, the inner sleeve 201 and the outer wheel 202 are coaxially arranged, and there are multiple connecting ribs 203. The connecting ribs 203 are elongated components. One end of the connecting rib 203 is connected to the outer periphery of the inner sleeve 201, and the other end of the connecting rib 203 is connected to the inner periphery of the outer wheel. The multiple connecting ribs 203 are arranged in a circumferential array relative to the axis of the inner sleeve 201 and are evenly distributed. The multiple connecting ribs 203 can play a role in assisting the operator to hold the wheel, providing more points of force, and improving the flexibility of rotating the handwheel 200.

[0031] In one example, the inner sleeve 201 is fitted onto the first section 101 and abuts against one side of the boss 11. The nut is screwed onto the end of the first section 101 and abuts against the inner sleeve 201, thereby realizing the installation of the handwheel 200. A washer 301 can also be provided, which is fitted onto the first section 101 and located between the nut and the inner sleeve 201, making it easier to tighten the nut. In this embodiment, a keyway is provided on the inner wall of the inner sleeve 201. The keyway runs parallel to the axial direction of the inner sleeve 201 and passes through both ends of the axial direction of the inner wall of the inner sleeve 201. A keyway is recessed on the outer periphery of the first section 101. By providing a keyway, the circumferential rotation of the inner sleeve 201 relative to the first section 101 can be restricted, thereby further avoiding the application of a reaction force to the nut when tightening the handwheel 200, preventing stripping between the nut and the first section 101, and making the connection between the handwheel 200 and the first section 101 more stable.

[0032] More preferably, it also includes a connecting plate 400, and there are two connecting plates 400. When the two connecting plates 400 are aligned, they can form a mounting hole 401 through which the rod 100 passes, so as to facilitate the installation of the rod 100 on the shredder.

[0033] This application embodiment also provides a shredder, including the above-mentioned clamping mechanism. The rod 100 is installed on the shredder through two connecting plates 400. At that time, the rod 100 is rotatably installed on the head frame of the shredder through the two mounting plates. Tightening the rod 100 allows the rod 100 to be threaded into the body of the shredder, thereby achieving the fastening of the head frame to the body.

[0034] Both connecting plates 400 are semi-circular plates with notches on their edges. When aligned, they form a circular plate structure. The notches create a coaxial mounting hole 401 in the center of the circular plate structure. The diameter of the mounting hole 401 is slightly larger than the diameter of the rod 100, allowing the rod 100 to rotate circumferentially within the mounting hole 401. In one example, the diameter of the second section 102 is larger than the diameter of the first section 101. The end of the second section 102 has a protruding trapezoidal thread with an outer diameter larger than the diameter of the mounting hole 401. The diameter of the second section 102 is smaller than the diameter of the mounting hole 401. Thus, the second section 102 can be rotatably mounted on the machine head frame using the two mounting plates. The mounting plates are located in the area of ​​the second section 102 where the trapezoidal thread is not present. This prevents the rod 100 from falling off when it is detached from the machine body during screwing, making it more convenient to use.

[0035] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0036] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0037] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. 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 application.

Claims

1. A clamping mechanism, characterized in that, include: The rod is a long, elongated component; A boss protrudes from the outer periphery of the rod and is integrally formed with the rod. The outer circumferential cross-section of the boss is polygonal. The handwheel is fitted onto the rod and can axially abut against one side of the boss; A locking element is provided on the rod body, and the locking element and the boss cooperate to lock the handwheel.

2. The clamping mechanism according to claim 1, characterized in that: The outer circumferential cross-section of the boss is hexagonal.

3. The clamping mechanism according to claim 1, characterized in that: The rod body includes a first section and a second section, both of which are elongated components. The boss is located between the first section and the second section, and the handwheel and locking device are both sleeved on the first section.

4. A clamping mechanism according to claim 3, characterized in that: Both the first section and the second section are long cylindrical rods, and the first section and the second section are coaxially arranged.

5. A clamping mechanism according to claim 4, characterized in that: The locking element includes a nut, which is threaded into a first section to lock the handwheel.

6. A clamping mechanism according to claim 1, characterized in that: Both the lever and the handwheel are provided with keyways so as to restrict the relative circumferential movement of the handwheel and the lever by means of keys.

7. A clamping mechanism according to claim 1, characterized in that: The handwheel includes an inner sleeve and an outer wheel body. Both the outer wheel body and the inner sleeve are annular. The diameter of the outer wheel body is larger than that of the inner sleeve. A connecting rib is provided between the inner sleeve and the outer wheel body to connect the inner sleeve and the outer wheel body. The inner sleeve is fitted onto the rod body and can axially abut against the boss.

8. A clamping mechanism according to claim 7, characterized in that: The inner sleeve and the outer wheel are coaxially arranged, and there are multiple connecting ribs, which are evenly distributed in the circumferential direction relative to the axis of the inner sleeve.

9. A clamping mechanism according to claim 1, characterized in that: It also includes two connecting plates, which, when aligned, form mounting holes through which the rod passes.

10. A shredder, comprising a pressing mechanism as described in any one of claims 1-9, characterized in that: The rod is mounted on the shredder via two connecting plates.

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