Packaging machine frame paper transverse conveying belt damage prevention structure

Abstract

The utility model discloses a packaging machine frame paper transverse conveying belt damage prevention structure which is installed on a frame paper conveying mechanism and a cigarette packet guide rail propelling mechanism on an FX2 packaging machine and comprises a frame paper transverse conveying belt, a cigarette packet longitudinal conveying guide rail and a frame paper transverse conveying bottom plate. By controlling the size of the gap from the frame paper transverse conveying bottom plate to the tobacco bale longitudinal conveying guide rail and matching with the design of the middle bottom plate, the conveying belt located at the tobacco bale guide rail propeller can be supported by the extension section of the frame paper transverse conveying bottom plate when drooping, so that the conveying belt is prevented from drooping into the first gap; therefore, the conveying belt is prevented from being extruded and torn by the frame paper pushing head. Deformation of the conveying belt when the frame paper is blocked is reduced, interference between the frame paper pushing head and the conveying belt is avoided, and the service life of the conveying belt is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the field of local functional structures of cigarette packing machines, in particular to a damage prevention structure for a transverse conveying belt of a frame paper of a packing machine. Background Art

[0002] In a traditional cigarette packing machine, one of the process steps is to pack the cigarettes in the pack together with the cigarette pack. Before that, a piece of hard cardboard needs to be placed on top of the cigarette pack as an inner lining to support the overall frame of the cigarette pack, which is also called frame paper. In this process step, a single cigarette pack transported longitudinally needs to be paired with a single frame paper transported transversely, so that it can be packaged and formed synchronously with the packaging paper at the next workstation; specifically, the frame paper transverse conveying system is a system in which the cut frame paper is conveyed by an accelerating roller to accelerate and separate the connected frame paper, and the fully formed frame paper is conveyed by two sets of conveying rollers and sent to the transverse conveying track, and the frame paper transverse output device connects the frame paper device and the cigarette guide track of the flip-top packaging machine, and the cut frame paper is sent to the cigarette guide track by the transverse conveyor belt.

[0003] The current problem is that the conventional frame paper transverse conveyor toothed belt bottom plate is easy to damage the transverse conveyor belt when the frame paper is blocked. Through the analysis of the causes of damage and breakage of the frame paper transverse conveyor belt of the existing packaging machine, it is found that: when the frame paper is blocked, the conveyor belt is affected by gravity, and a certain downward deformation occurs due to sagging. The sagging part interferes with the frame paper pusher that carries the cigarette pack into the folding turret, resulting in the conveyor belt being squeezed and pulled under the displacement of the pusher, causing damage to the conveyor belt. However, at this time, the tension of the conveyor belt checked by the tension tester also meets the standard, and this fault cannot be eliminated by adjusting the tension, resulting in a short service life of the conveyor belt, frequent replacement, high cost, and equipment downtime due to replacement, which affects production tasks. Summary of the invention

[0004] In order to solve the above-mentioned deficiencies in the prior art, the inventor has solved the above-mentioned problems through research and development, design and improvement, and provided a structural improvement that will not cause interference contact between the conveyor belt and the frame paper pusher, reducing the deformation of the conveyor belt when the frame paper is blocked, avoiding interference between the frame paper pusher and the conveyor belt, and greatly extending the service life of the conveyor belt. It also has the combined functions of double frame paper and double cigarette packs, which can improve efficiency while ensuring the positioning accuracy of the frame paper, significantly improve the operating stability of the equipment, and greatly reduce the number of downtimes and maintenance costs.

[0005] Specifically, the utility model is implemented as follows: a packaging machine frame paper transverse conveyor belt damage prevention structure, installed on the FX2 packaging machine frame paper conveying mechanism and cigarette package guide rail propulsion mechanism, including:

[0006] The frame paper transverse conveyor belt is a toothed belt structure, which is mounted on the two sets of conveyor rollers of the frame paper conveying mechanism on the FX2 packaging machine. The conveyor rollers provide power to drive the transverse conveyor belt to rotate. The outer belt is equipped with convex frame paper stoppers at equal intervals. The frame paper stoppers can push the frame paper to be transported transversely along the frame paper transverse conveying bottom plate.

[0007] The cigarette pack longitudinal conveying guide rail includes an upper rail surface and a lower guide groove, which is installed below the frame paper transverse conveying belt and is used to convey the cigarette pack forward between the upper rail surface and the lower guide groove and can pass under the frame paper. The upper surface of the upper rail surface is used to dock with the frame paper passing transversely. The front end of the upper rail surface can combine the frame paper and the cigarette pack to form an upper and lower overlapping placement structure.

[0008] The frame paper transverse conveying bottom plate is an integrally formed structure, installed below the frame paper conveying mechanism, provided with a groove for transverse conveying of the frame paper, and provided with an extension section extending to the upper rail surface at the end of the groove; the end of the extension section extends to one side of the upper rail surface and has a first gap, the width of the gap is adapted to the width of the frame paper pushing head, so that the frame paper pushing head can just pass through the first gap.

[0009] Furthermore, the cigarette pack longitudinal conveying guide rails are installed in two groups side by side, a middle bottom plate is installed between the two groups of upper rail surfaces, the middle bottom plate and the surface of the upper rail surface are in the same horizontal plane, and a second gap is provided between the two groups of upper rail surfaces and the middle bottom plate for the frame paper push head to pass through.

[0010] Furthermore, it also includes a frame paper limiting mechanism installed on the end of the conveying roller, which is used to control the conveying of the frame paper and locate its position; it includes: a cam connecting rod, the rotating shaft of which is installed on the end of the conveying roller and eccentrically connected, and the small end is hingedly installed on the middle section of the limiting lever, so that the cam connecting rod can drive the limiting lever to move up and down with the rotation of the conveying roller; a limiting lever, one end of which is hingedly installed on the conveying roller mounting frame, and the other end extends horizontally to the top of the middle bottom plate and forms a downwardly bent blocking hook at the end; the size design of the cam connecting rod and the limiting lever makes them adapt to the rhythm of frame paper conveying, so that when the blocking hook is lifted, a piece of frame paper can just pass through the middle bottom plate, and when the blocking hook is lowered, the next piece of frame paper is conveyed into place and blocked in place by the blocking hook.

[0011] Furthermore, an avoidance groove is provided on the central bottom plate, the width of the avoidance groove is adapted to the hook length of the stop hook, and the avoidance groove is used for the stop hook of the limit lever to be placed in the avoidance groove when it moves downward, thereby limiting the displacement of the frame paper.

[0012] Furthermore, the edges of the central bottom plate and the two sets of upper rail surfaces close to the direction of incoming frame paper are provided with downwardly inclined chamfers.

[0013] The working principle of the utility model is introduced as follows: The utility model is a damage prevention structure for the transverse conveyor belt of frame paper of a packaging machine, which is used to protect the transverse conveyor belt of frame paper. When frame paper is blocked, the conveyor belt at the cigarette pack guide rail pusher sags and is supported by the extension section of the frame paper transverse conveying bottom plate, thereby preventing the conveyor belt from sagging into the first gap, thereby avoiding the conveyor belt from being squeezed and torn by the frame paper pusher. That is, the structural design of the conveying bottom plate makes the first gap small enough to allow only the frame paper pusher to pass through, and the sagging conveyor belt is supported by the bottom plate, thereby preventing it from sagging excessively; secondly, the design of the middle bottom plate can also provide support for the conveyor belt at the other end, and the design of the middle bottom plate, in conjunction with two sets of cigarette pack longitudinal conveying guide rails, realizes the structure of matching frame paper for two cigarette packs at the same time, and can provide the installation of two sets of frame paper pushers and guide rails, thereby improving production efficiency. In conjunction with the design of the upper limit lever, the use of a blocking hook can be realized to realize one set of guide rails. The frame paper on the upper side is limited, and the limit lever rotates synchronously with the frame paper transverse conveyor belt, and can contact the limit when rising, allowing a piece of frame paper to pass through and enter the outer cigarette pack longitudinal conveying guide rail to take position, and then immediately descend to block the frame paper conveying channel, so that the second piece of frame paper is accurately stopped at the position of another set of cigarette pack longitudinal conveying guide rails, and then synchronously pushed forward by the frame paper pushing head to form an accurate upper and lower stacking with the cigarette packs between the upper rail surface and the lower guide groove; due to the sophisticated and accurate limit design, the probability of blockage caused by misalignment of the frame paper is reduced.

[0014] Beneficial technical effects of the utility model:

[0015] (1) The structural design of the utility model enables the frame paper transverse conveying bottom plate to support the conveyor belt when the frame paper is blocked, thereby preventing the conveyor belt from being damaged by being squeezed and torn by the frame paper pusher due to excessive sagging, thereby greatly improving the service life of the conveyor belt, reducing maintenance costs, saving manpower, and ensuring production efficiency.

[0016] (2) The design of the center bottom plate realizes the installation of the longitudinal conveying guide rails for the double groups of cigarette packs, and cooperates with the limit lever and the cam connecting rod to realize the synchronous positioning of the double frame paper and the synchronous combination of the double cigarette packs. While improving production efficiency, it realizes the support of both ends of the lower conveyor belt to the greatest extent, further improving the anti-damage effect of the conveyor belt and greatly reducing the probability of conveyor belt damage.

[0017] (3) With the help of the limit lever and the cam connecting rod, the line can accurately control the positioning of the frame paper, thereby improving the conveying accuracy of the frame paper, reducing the probability of blockage, and reducing the number of shutdowns for maintenance, thereby improving the overall production continuity and stability and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural stereoscopic schematic diagram of a damage prevention structure of a transverse conveyor belt of a packaging machine frame paper according to the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of a frame paper transverse conveying bottom plate of a frame paper transverse conveying belt damage prevention structure of a packaging machine according to the utility model;

[0020] Figure 3 It is a schematic diagram of the working state of a damage prevention structure of a transverse conveyor belt of a packaging machine frame paper according to the utility model;

[0021] Figure 4 It is a structural schematic diagram of a frame paper transverse conveying bottom plate and a middle bottom plate of a damage prevention structure of a frame paper transverse conveying belt of a packaging machine according to the utility model;

[0022] Figure 5 It is a schematic diagram of the process when the limit lever rises during the conveying process of the frame paper;

[0023] Figure 6 It is a schematic diagram of the process when the limit lever falls during the conveying process of the frame paper;

[0024] Figure 7 It is a schematic diagram of the operating principle of a cam connecting rod member of a damage prevention structure for a transverse conveyor belt of a packaging machine frame paper according to the utility model;

[0025] Figure 8 It is a partial structural stereogram of a damage prevention structure of a transverse conveyor belt of a packaging machine frame paper according to the utility model;

[0026] Among them: 1-frame paper transverse conveyor belt, 11-conveyor roller, 12-frame paper block, 2-cigarette pack longitudinal conveying guide rail, 21-frame paper pusher, 3-frame paper, 4-cigarette pack, 5-frame paper transverse conveying bottom plate, 51-extension section, 52-first gap, 53-upper rail surface, 54-middle bottom plate, 55-second gap, 56-avoidance slot, 57-guide angle, 61-cam connecting rod, 62-limiting lever, 63-conveyor roller mounting frame, 64-hook. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] Embodiment 1: A packaging machine frame paper transverse conveyor belt damage prevention structure, installed at the frame paper 3 conveying mechanism and cigarette pack 4 guide rail pushing mechanism of the FX2 packaging machine, comprising:

[0029] The frame paper transverse conveyor belt 1 is a toothed belt structure, which is mounted on two sets of conveying rollers 11 of the frame paper 3 conveying mechanism on the packaging machine. The conveying rollers 11 provide power to drive the transverse conveyor belt to rotate. The outer belt is provided with convex frame paper stoppers 12 at equal intervals. The frame paper stoppers 12 can push the frame paper 3 to be conveyed transversely along the frame paper transverse conveying bottom plate 5.

[0030] The cigarette pack longitudinal conveying guide rail 2 includes an upper rail surface 53 and a lower guide groove, which is installed below the frame paper transverse conveying belt 1 and is used to convey the cigarette pack 4 forward between the upper rail surface 53 and the lower guide groove, and can pass under the frame paper 3. The upper surface of the upper rail surface 53 is used to dock with the frame paper 3 passing transversely, and the frame paper 3 and the cigarette pack 4 can be combined at the front end of the upper rail surface 53 to form an upper and lower overlapping placement structure;

[0031] The frame paper transverse conveying bottom plate 5 is an integrally formed structure, installed below the frame paper 3 conveying mechanism, and is provided with a groove for providing the frame paper 3 for transverse conveying, and an extension section 51 extending to the upper rail surface 53 is provided at the end of the groove; the end of the extension section 51 extends to one side of the upper rail surface 53 and has a first gap 52, the width of the gap is adapted to the width of the frame paper pushing head 21, so that the frame paper pushing head 21 can just pass through the first gap 52.

[0032] In actual use, the frame paper transverse conveyor belt 1 is a toothed belt structure that runs in an annular manner. It is installed between two groups of conveying rollers 11 of the frame paper 3 conveying mechanism on the packaging machine. One of the conveying rollers 11 is used as an active roller to provide power for rotation. The inner ring of the conveyor belt is a toothed structure, which is adapted to be connected with the gear installed on the conveying roller 11, so that the rotation of the conveying roller 11 can drive the frame paper transverse conveyor belt 1 to operate through the gear. A number of equidistantly arranged frame paper pushers 21 are laterally installed on the outer side of the frame paper transverse conveyor belt 1. The frame paper pushers 21 are used to pass through the groove on the frame paper transverse conveying bottom plate 5 when in the lower layer, and push the frame paper 3 entering the frame paper transverse conveying bottom plate 5 to be transported below the frame paper transverse conveyor belt 1 along the length direction of the frame paper transverse conveying bottom plate 5 until the end of the frame paper transverse conveying bottom plate 5 and enter the upper rail surface 53 of the cigarette pack longitudinal conveying guide rail 2. On the other hand, the packaging of the loaded cigarettes The cigarette pack 4 enters the longitudinal conveying guide rail 2 for conveying the cigarette pack, and is conveyed forward along the lower guide groove between the lower guide groove and the upper rail surface 53. The mechanism for pushing its movement is not described in this embodiment, and finally forms an upper and lower stacking structure with the frame paper 3 above the end of the upper rail surface 53. The frame paper 3 and the cigarette pack 4 are pushed synchronously by the reciprocating motion of the frame paper pusher 21 in the gap, and the two are conveyed forward synchronously, and enter the next workstation as a whole in an upper and lower stacking manner; in this process, due to the design of the extension section 51 at the end of the frame paper transverse conveying bottom plate 5, the first gap 52 between the extension section 51 and the upper rail surface 53 is small enough to allow only the frame paper pusher 21 to pass through. Such a structure allows the conveyor belt to be supported by the bottom plate when it is drooping, thereby preventing it from sagging excessively; the groove on the bottom plate is used to guide the frame paper stopper 12 during operation. If necessary, a wider groove can be designed to guide the frame paper 3 during transportation.

[0033] Embodiment 2: Based on Embodiment 1, the cigarette pack longitudinal conveying guide rails 2 can be installed in two groups side by side, and a middle bottom plate 54 is installed between the two groups of upper rail surfaces 53. The middle bottom plate 54 and the surface of the upper rail surface 53 are at the same horizontal plane, and a second gap 55 for the frame paper pusher 21 to pass through is provided between the two groups of upper rail surfaces 53 and the middle bottom plate 54. The design of the middle bottom plate 54 can also provide support for the conveyor belt at the other end, and the design of the middle bottom plate 54, in conjunction with the two sets of transversely arranged cigarette pack longitudinal conveying guide rails 2, realizes the structure of matching the frame paper 3 for two cigarette packs 4 at the same time, and can provide for the installation of two sets of frame paper pushers 21 and guide rails, thereby improving production efficiency.

[0034] Preferably, a frame paper 3 limiting mechanism installed on the end of the conveying roller 11 is used to control the conveying of the frame paper 3 and locate its position; it includes: a cam connecting rod 61, the rotating shaft of which is installed on the end of the conveying roller 11 at a large end and eccentrically connected, and the small end is hingedly installed on the middle section of the limiting lever 62, so that the cam connecting rod 61 can drive the limiting lever 62 to move up and down with the rotation of the conveying roller 11; a limiting lever 62, one end of which is hingedly installed on the conveying roller mounting frame 63, and the other end extends laterally to the top of the middle bottom plate 54 and forms a downwardly bent blocking hook 64 at the end; the size design of the cam connecting rod 61 and the limiting lever 62 is adapted to the rhythm of the conveying of the frame paper 3, so that when the blocking hook 64 is lifted, a piece of frame paper 3 can just pass through the middle bottom plate 54, and when the blocking hook 64 is lowered, the next piece of frame paper 3 is conveyed into place and blocked in place by the blocking hook 64. In combination with the design of the upper limit lever 62, the stop hook 64 can be used to limit the frame paper 3 on one of the guide rails. The limit lever 62 rotates synchronously with the frame paper transverse conveyor belt 1, and can contact the limit when rising, allowing a piece of frame paper 3 to pass through and enter the outer cigarette pack longitudinal conveying guide 2 to take position, and then immediately descend to block the conveying channel of the frame paper 3, so that the second piece of frame paper 3 stops accurately at the position of another set of cigarette pack longitudinal conveying guide rails 2, and is then pushed forward by the frame paper push head 21 to form a precise upper and lower stack with the cigarette pack 4 between the upper rail surface 53 and the lower guide groove; due to the sophisticated and accurate limit design, the probability of blockage caused by misalignment of the frame paper 3 is reduced.

[0035] Preferably, an avoidance slot 56 is provided on the middle bottom plate 54, and the width of the avoidance slot 56 is adapted to the hook length of the blocking hook 64. The avoidance slot 56 is used for the blocking hook 64 of the limit lever 62 to be inserted into the avoidance slot 56 when it moves downward, thereby limiting the displacement of the frame paper 3.

[0036] Preferably, the edges of the middle bottom plate 54 and the two sets of upper rail surfaces 53 close to the feeding direction of the frame paper 3 are provided with downwardly inclined chamfers 57. The purpose of the chamfers 57 is to prevent the frame paper 3 from being stuck by the edges when passing through the first and second gaps 55, and to smoothly transition to the middle bottom plate 54 or the upper rail surface 53 at the other end.

[0037] Preferably, a cover plate is installed above the plane where the upper rail surface 53 and the middle bottom plate 54 are located, and there is a gap between the cover plate, the middle bottom plate 54 and the upper rail surface 53 for the frame paper 3 to pass through, which can be used for dust prevention and form a guide plate for the movement of the frame paper 3 to prevent it from tilting and dislocating.

[0038] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A packaging machine frame paper transverse conveyor belt damage prevention structure, installed on the frame paper (3) conveying mechanism and cigarette pack (4) guide rail propulsion mechanism of the FX2 packaging machine, characterized in that include: The frame paper transverse conveyor belt (1) is a toothed belt structure, which is mounted on two groups of conveying rollers (11) of the frame paper (3) conveying mechanism on the FX2 packaging machine. The conveying rollers (11) provide power to drive the transverse conveyor belt to rotate. Outwardly protruding frame paper stoppers (12) are installed at equal intervals on the outer belt. The frame paper stoppers (12) can push the frame paper (3) to be conveyed transversely along the frame paper transverse conveying bottom plate (5). A cigarette pack longitudinal conveying guide rail (2) comprising an upper rail surface (53) and a lower guide groove, installed below the frame paper transverse conveying belt (1), used to convey the cigarette pack (4) forward between the upper rail surface (53) and the lower guide groove, and capable of passing under the frame paper (3); the upper surface of the upper rail surface (53) is used to dock with the frame paper (3) passing transversely, and the frame paper (3) and the cigarette pack (4) can be combined at the front end of the upper rail surface (53) to form an upper and lower overlapping placement structure; The frame paper transverse conveying bottom plate (5) is an integrally formed structure, installed below the frame paper (3) conveying mechanism, and is provided with a groove for transversely conveying the frame paper (3), and an extension section (51) extending to the upper rail surface (53) is provided at the end of the groove; the end of the extension section (51) extends to one side of the upper rail surface (53) and has a first gap (52), the width of the gap being adapted to the width of the frame paper pushing head (21), so that the frame paper pushing head (21) can just pass through the first gap (52).

2. The anti-damage structure of the transverse conveyor belt of the packaging machine frame paper according to claim 1 is characterized in that: The cigarette pack longitudinal conveying guide rail (2) is composed of two groups installed side by side, a middle bottom plate (54) is installed between the two groups of upper rail surfaces (53), the middle bottom plate (54) and the surface of the upper rail surface (53) are in the same horizontal plane, and a second gap (55) for the frame paper pusher (21) to pass through is arranged between the two groups of upper rail surfaces (53) and the middle bottom plate (54).

3. The anti-damage structure of the transverse conveyor belt of the packaging machine frame paper according to claim 2 is characterized in that: It also includes a frame paper (3) limiting mechanism installed on the end of the conveying roller (11), which is used to control the conveying of the frame paper (3) and locate its position; it includes: The cam connecting rod (61) has a rotating shaft at a large end eccentrically connected to the end of the conveying roller (11), and a small end hingedly installed on the middle section of the limit lever (62), so that the cam connecting rod (61) can drive the limit lever (62) to move up and down as the conveying roller (11) rotates; A limit lever (62) having one end hingedly mounted on a conveying roller mounting frame (63) and the other end extending transversely to above the middle bottom plate (54) and forming a downwardly bent stop hook (64) at the end; The size design of the cam connecting rod (61) and the limit lever (62) is adapted to the rhythm of the frame paper (3) conveying, so that when the stop hook (64) is lifted, a piece of frame paper (3) can just pass through the middle bottom plate (54), and when the stop hook (64) is lowered, the next piece of frame paper (3) is conveyed into position and blocked in place by the stop hook (64).

4. The anti-damage structure of the transverse conveyor belt of the packaging machine frame paper according to claim 3 is characterized in that: The middle bottom plate (54) is provided with an avoidance slot (56), the width of which matches the hook length of the stop hook (64), and the avoidance slot (56) is used for the stop hook (64) of the limit lever (62) to be placed in the avoidance slot (56) when it moves downward, thereby limiting the displacement of the frame paper (3).

5. The anti-damage structure of the transverse conveyor belt of the packaging machine frame paper according to claim 3 is characterized in that: The edges of the middle bottom plate (54) and the two sets of upper rail surfaces (53) close to the feeding direction of the frame paper (3) are provided with downwardly inclined chamfers (57).

Images