Cigarette making machine protective cover self-locking device
By installing a mechanical locking mechanism on the cigarette rolling machine, the problem of unstable support for the hopper cover was solved, achieving stable support and safe operation of the equipment, and reducing maintenance difficulty and spare parts costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHINA TOBACCO IND CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
AI Technical Summary
The hopper cover of the ZJ118 cigarette machine is unstable, which makes operation and maintenance inconvenient, poses a safety hazard, and has high spare parts costs.
A mechanical locking mechanism replaces the gas spring. Through the cooperation of the turntable and locking parts with the locking part, the lower guard plate of the hopper is self-locking, ensuring support effect and service life.
It improves the safety and efficiency of equipment operation and maintenance, reduces spare parts costs, and extends the service life of the equipment.
Smart Images
Figure CN224250682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette equipment technology, and in particular to a self-locking device for a cigarette machine protective cover. Background Technology
[0002] The ZJ118 is a domestically produced cigarette rolling machine independently developed by Changde Tobacco Machinery. During production and operation, it was found that the gas spring of the feed hopper cover frequently malfunctioned, failing to support the feed hopper cover. After replacement, the new gas springs only lasted a very short time, failing again in about a week. This posed safety hazards for operators and maintenance personnel, making operation and maintenance extremely inconvenient, reducing the effective operating rate of the equipment, and increasing spare parts costs. Utility Model Content
[0003] This application provides a self-locking device for the protective cover of a cigarette machine to solve the problem that the hopper cover of the existing ZJ118 cigarette machine is unstable, which poses a safety hazard to operators and maintenance workers, makes operation and maintenance extremely inconvenient, reduces the effective operating rate of the equipment, and increases the cost of spare parts.
[0004] The technical solution adopted in this application is as follows:
[0005] A self-locking device for a cigarette machine protective cover includes a protective cover body disposed at the front end of the cigarette machine. The protective cover body includes an upper hopper guard plate fixedly mounted on the cigarette machine and a lower hopper guard plate rotatably mounted on the cigarette machine. The rotation axis of the lower hopper guard plate is parallel to the length direction of the cigarette machine. Locking mechanisms are respectively provided between the two ends of the lower hopper guard plate and the cigarette machine. The locking mechanism includes a connecting rod, a fixed seat, and a turntable. The fixed seat is fixedly mounted on the outer shell of the cigarette machine. The connecting rod rotatably passes through the fixed seat. One end of the connecting rod is fixedly connected to the lower hopper guard plate, and the other end is fixedly connected to the turntable. A locking element is provided on the fixed seat, and a snap-fit part that cooperates with the locking element is provided on the turntable. When the turntable rotates at a preset angle, the snap-fit part can engage with the locking element.
[0006] By setting the above structure, the existing gas spring is replaced by mechanical locking. After the lower guard plate of the hopper rotates and rises, it is mechanically locked by the locking part and the locking part, which forms a stable support for the lower guard plate of the hopper. The support effect is good and the service life is long.
[0007] Furthermore, the axis of the turntable and the axis of the connecting rod are both collinear with the rotation axis of the lower guard plate of the hopper.
[0008] Furthermore, the turntable has an arc-shaped notch and an opening on its edge, the arc-shaped notch and the opening are connected, the intersection of the arc-shaped notch and the opening forms a front fork on the turntable, and the opening forms a rear fork on the turntable. The locking member (at its geometric center) is rotatably mounted on the fixed seat. When the hopper lower guard plate rotates to the first position, the locking member is movably located within the arc-shaped notch. When the hopper lower guard plate rotates to the second position, the locking member is located within the opening and abuts against the rear fork. When the hopper lower guard plate rotates to the third position, the locking member is located at the intersection of the arc-shaped notch and the opening and engages with the front fork.
[0009] Furthermore, the locking element is X-shaped. When the lower guard plate of the hopper rotates to the first position, the locking element does not contact the side wall of the arc-shaped notch. When the lower guard plate of the hopper rotates to the second position, the rear fork is located inside the latch at one end of the locking element and abuts against the inner side wall of the latch, or the rear fork is located outside one end of the locking element and abuts against the outer side wall of the latch. When the lower guard plate of the hopper rotates to the third position, the front fork is located inside the latch at one end of the locking element and engages with the inner side wall of the latch.
[0010] By setting the above structure, the lower hopper guard plate in the first position is in the closed state, the lower hopper guard plate in the second position is at the highest point of rotation and lifting, and the third position is the preset position of the lower hopper guard plate in the open state. Rotating the lower hopper guard plate, with the cooperation of the turntable and the locking mechanism, automatically completes the mechanical engagement of the turntable and the locking mechanism, that is, the lower hopper guard plate is self-locking. The structure is simple and the operation is convenient.
[0011] Furthermore, the fixed base is provided with a support lug, and a fixing component is provided between the fixed base and the cigarette machine housing. The fixing component includes a screw and a nut. The support lug is provided with a through hole for the screw to pass through. One end of the screw is fixedly connected to the cigarette machine housing, and the other end passes through the through hole and cooperates with the nut.
[0012] By setting up the above structure, the mounting base can be stably and reliably installed on the cigarette machine, and the mounting base is detachable, which facilitates later maintenance and replacement.
[0013] Furthermore, a handle is provided on the lower guard plate of the hopper.
[0014] The above structure makes it easy for staff to open or close the lower guard plate of the hopper.
[0015] Furthermore, both the upper and lower guard plates of the hopper are made of transparent material.
[0016] By setting up the above structure, staff can easily and intuitively observe the internal condition of the cigarette rolling machine.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The self-locking device for the protective cover of the cigarette machine in this application can be widely applied to cigarette enterprises nationwide, especially the ZJ118 model. After the protective cover of the hopper nozzle rod is raised, the locking mechanism locks the protective cover to prevent it from falling, eliminate safety accidents, improve the efficiency of operators in troubleshooting hopper malfunctions, reduce parts costs, and reduce maintenance intensity.
[0019] 2. By setting up a snap-fit part and a locking component, the lower guard plate of the hopper rotates and rises, and is mechanically engaged by the locking component and the snap-fit part, forming a stable support for the lower guard plate of the hopper. The support effect is good and the service life is long. Attached Figure Description
[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0021] Figure 1 This is a schematic diagram of the installation structure of a self-locking device for a cigarette machine protective cover according to this utility model on a cigarette machine;
[0022] Figure 2 This is a schematic diagram of the structure of the lower guard plate of the hopper in this utility model;
[0023] Figure 3 yes Figure 2 Enlarged structural diagram at point A;
[0024] Figure 4 This is a schematic diagram of the disassembled structure of the locking mechanism in this utility model;
[0025] Figure 5 yes Figure 2 Side view;
[0026] Figure 6 yes Figure 5 Enlarged structural diagram at point B;
[0027] Figure 7 This is a schematic diagram of the structure of the hopper lower guard plate in the second position in this utility model. Figure 1 ;
[0028] Figure 8 This is a schematic diagram of the structure of the hopper lower guard plate in the third position in this utility model;
[0029] Figure 9 This is a schematic diagram of the structure of the hopper lower guard plate in the second position in this utility model. Figure 2 .
[0030] In the above attached diagram: 1. Cigarette rolling machine; 2. Lower guard plate of hopper; 3. Mounting rod; 4. Handle; 5. Connecting rod; 6. Fixing base; 7. Support lug; 8. Fixing component; 9. Locking component; 10. Turntable; 11. Arc-shaped notch; 12. Opening; 13. Front fork; 14. Rear fork; 15. Clamp; 16. Upper guard plate of hopper. Detailed Implementation
[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable for those skilled in the art that some well-known mechanisms and their descriptions may be omitted in the figures.
[0032] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the figures are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In the description of this application, terms such as "first", "second", etc. are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figure 1-9 As shown, this application provides a self-locking device for a cigarette machine protective cover, including a protective cover body disposed at the front end of a cigarette machine 1. The protective cover body includes an upper hopper guard plate 16 fixedly mounted on the cigarette machine 1 and a lower hopper guard plate 2 rotatably mounted on the cigarette machine 1. In this embodiment, the upper hopper guard plate 16 is vertically arranged, and the lower hopper guard plate 2 is also vertically arranged when it is normally closed. The rotation axis of the lower hopper guard plate 2 is parallel to the length direction of the cigarette machine 1. The lower hopper guard plate 2 is located below the upper hopper guard plate 16, and a rotation gap is reserved between the two. Similarly, a rotation gap is also reserved between the lower hopper guard plate 2 and the worktable surface of the cigarette machine 1, so that the lower hopper guard plate 2 can rotate smoothly. In this embodiment, the lower hopper guard plate 2 has symmetrically opened connection ports at both ends of its top. An installation rod 3 is fixedly mounted on the cigarette machine 1, and the installation rod 3 is located inside the connection port. The lower hopper guard plate 2 is rotatably connected to the installation rod 3 through a pin.
[0034] Locking mechanisms are provided at both ends of the hopper lower guard plate 2 and the cigarette machine 1. The locking mechanisms include a connecting rod 5, a fixed seat 6, and a turntable 10. The fixed seat 6 is fixedly installed on the outer shell of the cigarette machine 1. The connecting rod 5 is rotatably inserted through the outer shell of the cigarette machine 1 and the fixed seat 6. One end of the connecting rod 5 is fixedly connected to the hopper lower guard plate 2, and the other end is fixedly connected to the turntable 10. In this embodiment, the fixed seat 6 is circular. The axis of the turntable 10, the axis of the connecting rod 5, and the axis of the fixed seat 6 are all collinear with the rotation axis of the hopper lower guard plate 2. The fixed seat 6 is provided with a locking element 9, and the turntable 10 is provided with a snap-fit part that cooperates with the locking element 9. When the turntable 10 rotates at a preset angle, the snap-fit part can engage with the locking element 9 to position the protective cover body and keep the hopper lower guard plate 2 in a preset position.
[0035] The turntable 10 has an arc-shaped notch 11 and an opening 12 on its edge, which are connected. The intersection of the arc-shaped notch 11 and the opening 12 forms a front fork 13 on the turntable 10, which is the aforementioned locking part. The opening 12 forms a rear fork 14 on the turntable 10. The locking member 9 is rotatably mounted on the fixed base 6 at its geometric center. When the hopper lower guard plate 2 rotates to the first position, the locking member 9 is movably located within the arc-shaped notch 11; when the hopper lower guard plate 2 rotates to the second position, the locking member 9 is located within the opening 12 and abuts against the rear fork 14; when the hopper lower guard plate 2 rotates to the third position, the locking member 9 is located at the intersection of the arc-shaped notch 11 and the opening 12 and engages with the front fork 13.
[0036] The locking element 9 is X-shaped, and the opposite ends of the locking element 9 form a latch 15. When the lower guard plate 2 of the hopper rotates to the first position, the locking element 9 does not contact the side wall of the arc-shaped notch 11. That is, at this time, the lower guard plate 2 of the hopper and the turntable 10 rotate, but the locking element 9 does not move, and the locking element 9 does not position the lower guard plate 2 of the hopper. When the lower guard plate 2 of the hopper rotates to the second position, the rear fork 14 is located in the latch 15 at the lower end of the locking element 9 and abuts against the inner side wall of the latch 15, or the rear fork 14 is located outside the lower end of the locking element 9 and abuts against the outer side wall of the latch 15. When the lower guard plate 2 of the hopper rotates to the third position, the front fork 13 is located in the latch 15 at the upper end of the locking element 9 and engages with the inner side wall of the latch 15. At this time, the front fork 13 and the locking element 9 form a ratchet and pawl mechanical engagement, and the rotation of the lower guard plate 2 of the hopper and the turntable 10 is limited in one direction.
[0037] In the above embodiments, such as Figure 6 As shown, the lower hopper guard plate 2 in the first position is in the closed state, that is, the lower hopper guard plate 2 is perpendicular to the cigarette machine 1. At this time, the X-shaped locking member 9 is located at the end of the arc-shaped notch 11 away from the opening 12. The locking member 9 does not contact the inner wall of the arc-shaped notch 11, that is, the lower hopper guard plate 2 and the turntable 10 can rotate freely. When the lower hopper guard plate 2 rotates and rises, as... Figure 7As shown, the turntable 10 rotates counterclockwise until the hopper lower guard plate 2 rotates to its highest position. In this embodiment, the hopper lower guard plate 2 rotates 150° when it reaches its highest position. At this point, the hopper lower guard plate 2 reaches the second position, and the rear fork 14 strikes the inner wall of the lower end of the locking member 9 and locks in place. Figure 7 As shown, if the rear fork 14 wants to continue rotating, it must push open the locking member 9. However, the rotation of the locking member 9 is blocked by the rear fork 14, so the turntable 10 and the lower hopper guard plate 2 cannot continue to rotate. These two factors affect each other, so the lower hopper guard plate 2 is stuck when it rises to this point. The lower hopper guard plate 2 rotates and descends, and the front fork 13 and the upper latch 15 of the locking member 9 block each other. Figure 8 As shown, at this time, the hopper lower guard plate 2 is in the third position. In this embodiment, the angle between the hopper lower guard plate 2 in the third position and the initial position is 120°. The turntable 10 and the hopper lower guard plate 2 are stuck here, that is, the state when the hopper lower guard plate 2 is fixed after being opened. The hopper lower guard plate 2 is pressed down under its own weight. The pressing down cannot release the mechanical engagement between the front fork 13 and the locking member 9. At this time, the operator can operate the equipment, and the maintenance worker can repair the equipment. When the operation or maintenance is completed, if you want to lower the hopper lower guard plate 2, lift the hopper lower guard plate 2 from the second position to the third position, as shown in Figure 9. At this time, the rear fork 14 hits the outer wall of the lower locking slot 15 until the upper locking slot 15 of the locking member 9 abuts against the inner wall of the opening 12. The angle of the locking member 9 is changed, and the hopper lower guard plate 2 is lowered again. The front fork 13 hits the outer wall of the upper locking slot 15 of the locking member 9, causing the locking member 9 to retract. The locking member 9 rotates one revolution and returns to the initial position.
[0038] It should be noted that a 120° tilt is the optimal position for opening the hopper lower guard plate 2, providing a good view for the operator and facilitating operation. In this embodiment, the third position is set as a 150° tilt for the hopper lower guard plate 2. Since the worktable of the cigarette machine 1 has a certain height, at this angle, when the hopper lower guard plate 2 is self-locked in the second position, the operator and maintenance worker are less likely to accidentally touch the hopper lower guard plate 2 in the one-way locked state during operation or maintenance, causing the hopper lower guard plate 2 to rotate and rise from the second position to the third position. This avoids the hopper lower guard plate 2 being released from its self-locking state during operation or maintenance. The structure is simple, the operation is convenient, and the practicality is strong.
[0039] A support lug 7 is fixedly provided on the mounting base 6. A fixing element 8 is provided between the mounting base 6 and the outer casing of the cigarette machine 1. The fixing element 8 includes a screw and a nut. A through hole is provided on the support lug 7 for the screw to pass through. One end of the screw is fixedly connected to the outer casing of the cigarette machine 1, and the other end passes through the through hole and engages with the nut to lock the mounting base 6 and the cigarette machine 1 in place. This structural design can stably and reliably install the mounting base 6 on the cigarette machine 1. At the same time, the mounting base 6 is detachable, which is convenient for future maintenance and replacement.
[0040] A handle 4 is provided on the lower guard plate 2 of the hopper to facilitate the opening or closing of the lower guard plate 2 by the staff.
[0041] The upper guard plate 16 and the lower guard plate 2 of the hopper are both made of transparent material, which makes it convenient for staff to observe the internal condition of the cigarette machine 1.
[0042] In the above embodiments, a limiting plate can be provided on the cigarette machine 1. The purpose of this plate is to limit the lower hopper guard plate 2 when it rotates and descends, so that when the lower hopper guard plate 2 abuts against the limiting plate, the lower hopper guard plate 2 is just in the first position. Alternatively, the lower hopper guard plate 2 and the limiting plate can be designed to magnetically engage, or a locking pin can be provided on the cigarette machine 1 to position the lower hopper guard plate 2 in the first position.
[0043] The self-locking device for the protective cover of the cigarette machine 1 provided in this application has a locking mechanism that activates after the lower guard plate 2 of the hopper is raised, keeping the lower guard plate 2 of the hopper in the second position. When the lower guard plate 2 of the hopper needs to be lowered, it is first raised, causing the lower guard plate 2 of the hopper to rotate from the second position to the third position, at which point the locking mechanism is unlocked, and the lower guard plate 2 of the hopper returns to its normal position.
[0044] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.
Claims
1. A self-locking device for a cigarette rolling machine protective cover, comprising a protective cover body disposed at the front end of the cigarette rolling machine, characterized in that, The protective cover body includes an upper hopper guard plate fixedly installed on the cigarette machine and a lower hopper guard plate rotatably installed on the cigarette machine. The rotation axis of the lower hopper guard plate is parallel to the length direction of the cigarette machine, and locking mechanisms are respectively provided between the two ends of the lower hopper guard plate and the cigarette machine. The locking mechanism includes a connecting rod, a fixed base, and a turntable. The fixed base is fixedly installed on the outer shell of the cigarette machine. The connecting rod rotatably passes through the fixed base. One end of the connecting rod is fixedly connected to the lower guard plate of the hopper, and the other end is fixedly connected to the turntable. The fixed base is provided with a locking element, and the turntable is provided with a locking part that cooperates with the locking element. When the turntable rotates at a preset angle, the locking part can engage with the locking element.
2. The self-locking device for a cigarette machine protective cover according to claim 1, characterized in that, The axis of the turntable and the axis of the connecting rod are both collinear with the rotation axis of the hopper lower guard plate.
3. The self-locking device for a cigarette machine protective cover according to claim 1, characterized in that, The turntable has an arc-shaped notch and an opening on its edge. The arc-shaped notch and the opening are connected. The intersection of the arc-shaped notch and the opening forms a front fork on the turntable, and the opening forms a rear fork on the turntable. The locking member is rotatably mounted on the fixed base. When the lower guard plate of the hopper rotates to the first position, the locking member is movably located within the arc-shaped notch; When the hopper lower guard plate rotates to the second position, the locking member is located inside the opening and abuts against the rear fork; When the hopper lower guard plate rotates to the third position, the locking member is located at the intersection of the arc-shaped notch and the opening and engages with the front fork.
4. The self-locking device for a cigarette machine protective cover according to claim 3, characterized in that, The locking element is X-shaped. When the lower guard plate of the hopper rotates to the first position, the locking element does not contact the side wall of the arc-shaped notch. When the lower guard plate of the hopper rotates to the second position, the rear fork is located inside the latch at one end of the locking element and abuts against the inner side wall of the latch, or the rear fork is located outside one end of the locking element and abuts against the outer side wall of the latch. When the lower guard plate of the hopper rotates to the third position, the front fork is located inside the latch at one end of the locking element and engages with the inner side wall of the latch.
5. The self-locking device for a cigarette machine protective cover according to claim 1, characterized in that, The fixed base is provided with a support lug, and a fixing component is provided between the fixed base and the cigarette machine housing. The fixing component includes a screw and a nut. The support lug is provided with a through hole for the screw to pass through. One end of the screw is fixedly connected to the cigarette machine housing, and the other end passes through the through hole and is engaged with the nut.
6. The self-locking device for a cigarette machine protective cover according to claim 1, characterized in that, The lower guard plate of the hopper is equipped with a handle.
7. The self-locking device for a cigarette machine protective cover according to claim 1, characterized in that, Both the upper and lower guard plates of the hopper are made of transparent material.