Packing machine spiral cigarette case closing device

Abstract

A spiral cigarette case closing device of a packaging machine comprises a case pre-closing station, an inlet of the case pre-closing station is connected with a spiral device, the spiral device comprises a leading-in blocking face, an edge pressing arc, a pressing curved face and a supporting bottom face, the pressing curved face is arranged in a surrounding area among the leading-in blocking face, the edge pressing arc and the supporting bottom face, and the pressing curved face is gradually compressed downwards in a curved face mode along the edge pressing arc. The pressing curved surface is used for extruding the long side of the lining paper of the cigarette case entering from the lining paper suction station, the leading-in blocking surface is the outlet end of the cigarette case material of the spiral device, and the pressing curved surface extrudes the long side of the lining paper of the cigarette case to enable the opening angle to be changed from an obtuse angle to an acute angle.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette box packaging, and in particular to a spiral cigarette box closer for a packaging machine. Background Art

[0002] In the process of packing boxes, the cigarette box is transported from the liner paper suction station to the pre-box closing station. After the box cover of the cigarette box is folded through the spiral groove formed by the guide rod A and the guide rod B, it is transported to the full box closing station to completely close the box cover. However, in the production of the equipment, it was found that there were such problems in the box closing, such as Figure 5 When the cigarette box is in the pre-closing station, the box cover is closed from 120° to 8°. Due to the rebound of the short side of the lining paper, the long side of the lining paper will press on the inner corner of the short side to cause interference, such as Figure 6 , Figure 7 ; After the cigarette box is closed, the short side of the lining paper will have the defect of warping; in view of the current problem of cigarette box warping and the problem of cigarette box not being closed properly, it is necessary to improve the cigarette box closing component;

[0003] Application publication number CN116062223A discloses an automatic box closing device and a box closing method thereof, which divides the turning operation of the upper cover into two steps of turning up and closing down, and presses the middle part and the outer edge of the box in three steps respectively, fundamentally improving the problem of excessive pressing force in the traditional box closing device in order to close the box in one step, which is conducive to reducing damage to the box and improving the smoothness of the connection during the closing process, thereby improving the packaging quality;

[0004] Application publication number CN219029856U discloses a self-carrying box closing device, which drives the conveying assembly, the box opening mechanism, and the page closing mechanism to work through the same driving main shaft, thereby improving the coordination performance of each mechanism, improving the accuracy and work efficiency of the box closing, and drives the side page closing mechanism, the tongue pressing mechanism, the tongue adjusting mechanism, and the tongue closing mechanism to work simultaneously through the same spline shaft and the first convex plate, so as to close the pages of the box accurately;

[0005] The above-mentioned prior art cannot overcome the above-mentioned technical defects, so technical improvements are needed to solve the above-mentioned difficulties. Summary of the invention

[0006] In view of this, facing the deficiencies of the prior art, an object of the present invention is to provide a spiral cigarette box closer for a packaging machine to solve the problems of cigarette box edge warping and cigarette box incomplete closing in the prior art.

[0007] In view of the existing side-opening packaging equipment, the small box lining paper warping and the cigarette box not closing properly often occur in production. Through the analysis of the running process and folding state of the small box, a guiding device designed according to the closing action is proposed;

[0008] This application is different from the original direct-shot mechanical guide rod structure, and innovatively adopts a nonlinear folding spiral structure. By reducing the running resistance of the small box, the short edge of the backing paper is prevented from rebounding and warping after folding, and the phenomenon of cigarettes flying out due to the jumping of the cigarette box, resulting in the cigarette box not being closed in place, is eliminated; the stability of the equipment operation is ensured, and the practical efficiency is improved.

[0009] The technical solution adopted by the present invention is to provide the following technical solutions to achieve the above-mentioned purpose and other related purposes:

[0010] A spiral cigarette box closer for a packaging machine comprises a pre-box closing station, an entrance of which is connected to a spiralizer, the spiralizer comprising an introduction baffle surface, a side pressing arc, a bending surface, and a supporting bottom surface, a bending surface is arranged in an enclosing area between the introduction baffle surface, the side pressing arc, and the supporting bottom surface, the bending surface is gradually compressed downward along the side pressing arc, the bending surface is used to extrude the long edge of the liner paper of the cigarette box entering from the liner paper suction station, the introduction baffle surface is the outlet end of the cigarette box material of the spiralizer, and the bending surface extrude the long edge of the liner paper of the cigarette box so that its opening angle changes from an obtuse angle to an acute angle.

[0011] A technical solution provided by this application also has the following technical features:

[0012] Preferably, the pre-box closing station is arranged between the full box closing station and the backing paper suction station.

[0013] Preferably, a full box closing rod is provided at the full box closing station, and a pre-box closing rod is provided at the pre-box closing station.

[0014] Preferably, the opening angle of the long side of the lining paper of the cigarette box after the curved surface is extruded is 15-50°.

[0015] Preferably, the opening angle of the long side of the lining paper of the cigarette box after the curved surface is pressed is 25°.

[0016] Preferably, the introduction stop surface is a triangular surface.

[0017] Preferably, the introduction stop surface is a plane.

[0018] Beneficial effects of the present invention: This application proposes a technical solution for a spiral cigarette box closer for a packaging machine, which aims to solve the problems of warping edges and inadequate closing of cigarette boxes during the packaging process;

[0019] The present invention uses a screw device to squeeze the long side of the backing paper to form a box closing action, and has the following characteristics:

[0020] 1. The present invention solves the problem of edge warping of cigarette boxes by squeezing the long edge of the lining paper, thereby reducing the problem of the short edge of the lining paper rebounding after folding and causing edge warping;

[0021] 2. The present invention improves the closing accuracy of the cigarette box by changing the opening angle of the backing paper, thereby eliminating the phenomenon of the cigarette box not being closed properly due to the vibration of the cigarette box;

[0022] 3. The present invention improves the stability of the production equipment. Compared with the original box closing action of the guide rods A and B, the box closing action is completed by using the spiral device to extrude the cigarette box along the movement of the station, which can adapt to the large-scale and high-flow rate production of cigarette boxes and improve the actual production efficiency. Compared with the guide rods A and B, the closing action is more reliable, and the extrusion area of ​​the curved surface extrusion is larger than that of the guide rods A and B, and the box closing action of the extrusion is reliable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a spiral cigarette box closer for a packaging machine of the present invention;

[0024] Figure 2 A three-dimensional diagram of a spiral cigarette box closer for a packaging machine of the present invention;

[0025] Figure 3 A three-dimensional diagram of a spiral device of a spiral cigarette box closing device of a packaging machine according to the present invention;

[0026] Figure 4 It is a process schematic diagram of a spiral cigarette box closing device for a packaging machine of the present invention;

[0027] Figure 5 It is a process schematic diagram of the prior art;

[0028] Figure 6 A three-dimensional diagram of a cigarette box closed in the prior art;

[0029] Figure 7 A three-dimensional diagram of a cigarette box closed in the prior art;

[0030] Figure 8 A three-dimensional diagram of a cigarette box closed in the prior art;

[0031] In the figure:

[0032] 1. Fully closed box station

[0033] 2. Pre-closing box station

[0034] 3. Spiralizer

[0035] 6. Suction paper station

[0036] 7. Cigarette Case

[0037] 71. Long edge of backing paper

[0038] 72. Short edge of backing paper

[0039] 73. Interference position

[0040] 11. Fully closed box lever

[0041] 21. Pre-closing lever

[0042] 31. Import stop surface

[0043] 32. Edge arc

[0044] 33. Pressed surface

[0045] 34. Support bottom surface

[0046] 51. Guide rod A

[0047] 52. Guide rod B. DETAILED DESCRIPTION

[0048] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0049] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0052] like Figure 1-3A spiral cigarette box closer for a packaging machine includes a pre-closing station 2. A spiralizer 3 is connected to the entrance of the pre-closing station 2. The spiralizer 3 includes an introduction blocking surface 31, a pressure edge arc 32, a bending surface 33, and a supporting bottom surface 34. The bending surface 33 is arranged in the surrounding area between the introduction blocking surface 31, the pressure edge arc 32, and the supporting bottom surface 34. The bending surface 33 is gradually compressed downward along the pressure edge arc 32. The bending surface 33 is used to squeeze the long edge of the liner paper of the cigarette box entering from the liner paper suction station 6. The introduction blocking surface 31 is the outlet end of the cigarette box material of the spiralizer 3. The bending surface 33 squeezes the long edge of the liner paper of the cigarette box so that its opening angle changes from an obtuse angle to an acute angle.

[0053] The implementation of this application has such characteristics, including the following key technical solution features:

[0054] The spiralizer includes an introduction baffle surface, a pressure arc, a bending surface, and a supporting bottom surface; wherein the introduction baffle surface is the outlet end of the spiralizer, and the bending surface is gradually compressed downward to squeeze the long edge of the lining paper of the cigarette box;

[0055] The curved surface structure formed by the spiral device is used to squeeze the long side of the liner paper of the cigarette box entering from the liner paper suction station, so that it changes from an obtuse angle to an acute angle;

[0056] Position setting: The pre-box closing station is set between the full box closing station and the lining paper suction station. The full box closing station is provided with a full box closing rod, and the pre-box closing station is provided with a pre-box closing rod;

[0057] The overall structure of the device is simple and novel, the operation is simple, and the practicability is high. In actual application, it can completely solve the problem of edge warping of the cigarette box 7, and can also avoid the risk of equipment damage caused by the cigarette box 7 not being closed properly, effectively improving the production efficiency and the quality level of the product, and has great promotion potential in factories.

[0058] Specifically, Figure 1-4 , the pre-box closing station 2 is arranged between the full box closing station 1 and the lining paper sucking station 6; the full box closing station 1 is provided with a full box closing rod 11, and the pre-box closing station 2 is provided with a pre-box closing rod 21; the opening angle of the long side of the lining paper of the cigarette box after being squeezed by the curved surface 33 is 15-50°; the opening angle of the long side of the lining paper of the cigarette box after being squeezed by the curved surface 33 is 25°; the introduction blocking surface 31 is a triangular surface; the introduction blocking surface 31 is a plane; the upper end surface of the introduction blocking surface 31 is parallel to the supporting bottom surface 34, and a mounting hole is arranged on the upper end surface of the introduction blocking surface 31;

[0059] The technical solution of the spiral cigarette box 7 closing device of the packaging machine of the present application effectively solves the problem of the edge warping of the cigarette box 7 during the packaging process through the innovative design of the nonlinear folding spiral structure, and improves the stability of the equipment and the packaging quality;

[0060] like Figure 5For the original process flow, such as Figure 6 , Figure 7 For the original production equipment, the original guide rods A51 and B52 are replaced with a screw device 3, and the cigarette box 7 is closed from 170° to 25° in a screw closing manner. During this process, the long edge 71 of the liner paper presses the folded short edge 72 of the liner paper in advance to prevent the edge warping caused by the rebound of the short edge 72 of the liner paper;

[0061] The guide rods A51 and B52 of the original design are changed into spiral box closers. When the cigarette box 7 is closed from 170° to 25° by the spiral box closer, the short side 72 of the lining paper folded in advance by the long side 71 of the lining paper is effectively pressed down, thus solving the problem of edge warping caused by the rebound of the short side 72 of the lining paper and the problem of the cigarette box 7 not being closed properly.

[0062] The cigarette box 7 is transported from the liner paper suction station 6 to the pre-box closing station 2. The cover of the cigarette box 7 is closed from 170° when it is opened to 120° when it is pre-closed through the spiral groove formed by the guide rod A51 and the guide rod B52. The cover is then closed to 8° by the pre-box closing rod 21, and the cover is completely closed at the full box closing station 1. In the pre-box closing station 2, the cover is closed from 120° to 8°. Because the closing angle is too large, the short side 72 of the liner paper will rebound, and the long side 71 of the liner paper will be pressed on the inner corner of the short side, such as Figure 8 Interference occurs, see interference position 73, the cigarette box 7 will have a warping defect on the short side 72 of the liner after the box is closed; the guide rods A51 and B52 in the original design are now changed to a spiral box closing device, such as Figure 1-3 , the cigarette box 7 is closed from 170° to 25° in a spiral box closing manner. During this process, the long side 71 of the lining paper presses the folded short side 72 of the lining paper in advance. When the box lid reaches the pre-closing station 2, it is closed from 25° to 8°. In this way, the rebound of the short side 72 of the lining paper caused by the closing angle is avoided, and the warping phenomenon caused by the rebound of the short side 72 of the lining paper is fundamentally and thoroughly solved;

[0063] like Figure 6 , 7 As shown in FIG. 8 , there may be a phenomenon in which cigarettes jump out of the cigarette box 7 or the cigarette box 7 is affected in closing, and the cigarette box 7 cannot be completely closed, resulting in a blockage between the cigarette box 7 and the fixed pressure strip, which is very likely to cause damage to the mold box and the mold box conveyor belt of the equipment.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A spiral cigarette box closer for a packaging machine, comprising a pre-closing station (2), characterized in that: The entrance of the pre-box closing station (2) is connected with a spiral device (3), the spiral device (3) comprises an introduction stop surface (31), a side pressing arc (32), a bending surface (33), and a supporting bottom surface (34). The bending surface (33) is arranged in the surrounding area between the introduction stop surface (31), the side pressing arc (32), and the supporting bottom surface (34). The bending surface (33) is gradually compressed downward along the side pressing arc (32). The bending surface (33) is used to press the long side of the lining paper of the cigarette box entering from the lining paper suction station (6). The introduction stop surface (31) is the outlet end of the cigarette box material of the spiral device (3), and the bending surface (33) is used to press the long side of the lining paper of the cigarette box so that the angle with the opening angle changes from an obtuse angle to an acute angle.

2. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: The pre-box closing station (2) is arranged between the full box closing station (1) and the lining paper suction station (6).

3. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: A full box closing rod (11) is provided at the full box closing station (1), and a pre-box closing rod (21) is provided at the pre-box closing station (2).

4. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: After being pressed by the curved surface (33), the opening angle of the long side of the lining paper of the cigarette box is 15-50°.

5. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: After being pressed by the curved surface (33), the opening angle of the long side of the lining paper of the cigarette box is 25°.

6. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: The introduction stop surface (31) is a triangular surface.

7. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: The introduction stop surface (31) is a plane.

8. A spiral cigarette box closer for a packaging machine as claimed in claim 1, characterized in that: The upper end surface of the introduction stop surface (31) is parallel to the support bottom surface (34), and a mounting hole is arranged on the upper end surface of the introduction stop surface (31).

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