Lifting mechanism of cigarette carton collecting machine

Abstract

The utility model provides a lifting mechanism of a cigarette carton collecting machine, which comprises a bracket sliding block arranged on a rack, the bracket sliding block comprises a connecting rod penetrating through the rack, the first end of the connecting rod is provided with a limiting block, the second end of the connecting rod is provided with a sliding block, and the end part of the sliding block is provided with a downward inclined surface; a spring is further arranged between the machine frame and the sliding block. The cigarette lifting device has the advantages that a groove cam mechanism is removed, a spring is additionally arranged on each bracket sliding block, and the bracket sliding blocks are jacked open by the cigarettes in the process that the cigarettes are lifted by the lifting device; after the cigarette cartons are lifted in place, the bracket sliding block is reset and closed by means of elastic reset force of the spring, and the cigarette cartons stay on the surface of the bracket sliding block at the moment and wait for a collecting pushing handle. Opening and closing movement of the bracket sliding block is achieved in a non-active-force mode, the overall mechanical design structure is simple and reliable, and maintenance is not needed after long-term use.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco packaging, in particular to a lifting mechanism of a cigarette strip collecting machine. Background Art

[0002] The horizontal cigarette strip collecting machine is the frontier equipment of the cigarette packing and sealing machine. Its task is to transform the cigarette strips transported by the conveyor line from longitudinal operation to transverse operation, so that the cigarette strips enter the packing and sealing machine for box packaging. The lifting mechanism of the existing cigarette strip collecting machine includes a lifter, a bracket slider and a slot cam transmission unit. The rotation of the slot cam drives the connecting rod to make the bracket slider do uninterrupted opening and closing movements. When the cigarette strip is lifted by the lifter, the bracket slider is opened by the movement of the slot cam. After the cigarette strip is successfully lifted to the specified position, the bracket slider is closed by the movement of the slot cam. The cigarette strip stays on the top of the bracket slider, waiting for the horizontal collection pusher to transport the cigarette strip to the next process flow.

[0003] The existing lifting mechanism uses the method of rotating the groove cam to drive the connecting rod to realize the opening and closing action of the bracket slider. Its design principle determines the problems it will encounter during operation. First, the lifting mechanism adopts the method of oil pipe splash lubrication. The groove cam transmission unit is not designed in the gear box. It is exposed to the outside, with only a simple protective cover and an oil pan. When the groove cam rotates, the lubricating oil will be thrown out, causing the surrounding environment to be dirty and serious oil and dust accumulation. There is a certain probability that the oil will splash onto the cigarette strips, causing "oil stains" and affecting product quality. Second, the moving surface of the groove cam will wear after long-term operation, and its rollers will be damaged by long-term stress, causing the opening and closing action of the bracket slider to fail, which is very easy to cause cigarette strip indentation and lifting blockage, affecting the normal operation of the equipment and increasing the maintenance cost. Third, the existing lifting mechanism is provided with two groups of bracket sliders, each group has 8 blocks, a total of 16 bracket sliders, these 16 bracket sliders are uniformly controlled by a slot cam transmission unit and can be opened or closed at the same time (also opened and closed when there is no cigarette strip lifting), which will cause the equipment to have a lower operating efficiency, shorten the equipment life, and increase the operating noise. Utility Model Content

[0004] The utility model aims to provide a lifting mechanism for a cigarette collecting machine to solve the defects in the prior art.

[0005] The utility model provides a lifting mechanism of a cigarette collecting machine, comprising a bracket slider installed on a frame, the bracket slider comprising a connecting rod passing through the frame, a first end of the connecting rod is provided with a limit block, a second end is provided with a slider, the end of the slider is provided with an inclined surface facing downwards; a spring is also provided between the frame and the slider.

[0006] Preferably, a fixing block is provided at the second end of the connecting rod, and the sliding block is mounted on the fixing block.

[0007] Preferably, the frame comprises a first side surface and a second side surface which are arranged opposite to each other, the first side surface faces the limit block, and the second side surface faces the sliding block; and a plurality of buffer blocks are respectively arranged on the first side surface and the second side surface.

[0008] Preferably, a linear bearing is provided in the frame, and the connecting rod is slidably arranged in the linear bearing.

[0009] Preferably, a limit plate is also installed on the frame, and the limit plate is used to prevent the linear bearing from escaping from the frame.

[0010] Preferably, the angle between the inclined plane and the horizontal plane is 55°.

[0011] Preferably, the number of the racks is two, the two racks are arranged opposite to each other on the left and right, and a plurality of the bracket sliders are installed on each rack.

[0012] The utility model is beneficial in that the slot cam mechanism is removed and a spring is added to each bracket slider. When the cigarette carton is lifted by the lifter, the bracket slider is pushed open by the cigarette carton; when the cigarette carton is lifted into place, the bracket slider is reset and closed by the elastic reset force of the spring. At this time, the cigarette carton stays on the surface of the bracket slider, waiting for the collection pusher. The utility model realizes the opening and closing movement of the bracket slider in a non-active power mode. The overall mechanical design structure is simple and reliable, and no maintenance is required for long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the installation structure of the bracket slider and the rack;

[0014] Figure 2 It is a structural schematic diagram of the main part of the bracket slider;

[0015] Figure 3 yes Figure 1 Exploded diagram of

[0016] Figure 4 It is a schematic diagram of the installation of the bracket slider in the lifting mechanism;

[0017] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0018] Component number description:

[0019] 1 Rack

[0020] 11 First mounting hole

[0021] 12 Second mounting hole

[0022] 13 Third mounting hole

[0023] 14 Fourth mounting hole

[0024] 2 Bracket slide

[0025] 21 Fixed block

[0026] 22 Sliders

[0027] 221 bevel

[0028] 23 Limit block

[0029] 24 Connecting rod

[0030] 25 Spring

[0031] 26 Buffer block

[0032] 27 Limiting piece

[0033] 28 Linear bearings

[0034] 3 cigarettes DETAILED DESCRIPTION

[0035] The following is a further detailed description of the specific implementations of the present invention in conjunction with the accompanying drawings. These implementations are only used to illustrate the present invention, but not to limit the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "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 operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] 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 direct connection, or an indirect connection 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.

[0038] Figure 1 The figure shows the installation structure of the bracket slider and the rack. In the following description, Figure 1The drawings in the figure are used as a reference basis for directions, and the length direction of the rack 1 is defined as the front-to-back direction, the width direction of the rack 1 is defined as the left-to-right direction, and the height direction of the rack 1 is defined as the up-down direction.

[0039] like Figure 1 and Figure 2 As shown, the utility model provides a lifting mechanism for a cigarette collecting machine, which includes a lifter and a bracket slider 2 installed on a frame 1, the bracket slider 2 includes a connecting rod 24 that passes through the frame 1, a first end of the connecting rod 24 is provided with a limit block 23, a second end is provided with a slider 22, and an end of the slider 22 is provided with a downwardly facing inclined surface 221; a spring 25 is also provided between the frame 1 and the slider 22.

[0040] Combination Figure 4 It can be seen that in the lifting mechanism, there are two racks 1, which are arranged opposite to each other on the left and right sides, and a plurality of bracket sliders 2 are installed on each rack 1. Between the two racks 1 is a lifting channel for the cigarette strips 3.

[0041] The working principle of the utility model is as follows: when the lifter in the lifting mechanism drives the cigarette strip 3 to lift upward, the cigarette strip 3 contacts the inclined surface 221. At this time, the force driving the cigarette strip 3 to lift upward can be orthogonally decomposed into a vertical force and a horizontal force. The vertical force causes the cigarette strip 3 to continue to be lifted, and the horizontal force causes the spring 25 to compress. The slider 22 gradually approaches the frame 1, and the bracket slider 2 is pushed open by the cigarette strip 3. During the lifting process of the cigarette strip 3, the bracket slider 2 clamps the cigarette strip 3, while increasing the lifting stability of the cigarette strip 3, ensuring the reliability of the opening action of the bracket slider. When the cigarette strip 3 is lifted into place, the horizontal force applied to the spring 25 disappears, and the elastic reset force of the spring 25 pushes the slider 22 to move away from the frame 1. The slider 22 is reset, and the limit block 23 is used to prevent the connecting rod 24 from escaping from the frame 1. The cigarette strip 3 stays on the top of the slider 22 under the support of the sliders 22 on the left and right sides, waiting for the horizontal collection pusher to transport the cigarette strip 3 to the next process flow.

[0042] The utility model can ensure that the cigarette 3 can smoothly push the bracket slider 2 away and the cigarette 3 will not be crushed by selecting a spring 25 whose elastic force is smaller than the anti-extrusion capacity of the cigarette 3. Compared with the prior art, the bracket slider 2 in the utility model is only forced to move during the lifting process of the cigarette 3, and the bracket slider 2 remains stationary when no cigarette 3 is lifted. The overall mechanical design structure is simple and reliable, and no maintenance is required for long-term use.

[0043] like Figure 1-3As shown, in a specific embodiment of the utility model, each bracket slider 2 includes two connecting rods 24, the first ends of the two connecting rods 24 are connected to a limit block 23, and the second ends of the two connecting rods 24 are connected to a slider 22. This arrangement helps to improve the structural stability of the bracket slider 2. Preferably, a fixing block 21 is provided at the second end of the connecting rod 24, and the slider 22 is detachably mounted on the fixing block 21. The spring 25 is arranged between the frame 1 and the fixing block 21. This arrangement facilitates the disassembly and replacement of the slider 22, and improves the maintenance efficiency of the bracket slider 2. The slider 22 is made of lightweight, wear-resistant nylon material, and the angle between the inclined surface 221 and the horizontal plane is 55°.

[0044] Furthermore, the frame 1 is also provided with a first mounting hole 11 , a second mounting hole 12 , a third mounting hole 13 and a fourth mounting hole 14 .

[0045] The first mounting hole 11 is a blind hole, with an open end thereof facing the slider 22 , and a spring 25 is mounted therein.

[0046] The frame 1 includes a first side surface and a second side surface that are arranged opposite to each other, the first side surface faces the limit block 23, and the second side surface faces the slider 22; a plurality of second mounting holes 12 are respectively opened on the first side surface and the second side surface, and each second mounting hole 12 is a blind hole, in which a buffer block 26 is installed. The buffer block 26 is specifically made of rubber material, which can reduce the noise when the limit blocks 23 and the fixing blocks 21 at both ends of the connecting rod 24 collide with the frame 1, absorb vibration, prevent the bracket slider 2 from rebounding due to collision, and improve the service life of the bracket slider 2.

[0047] The third mounting hole 13 is a through hole, in which a linear bearing 28 is installed. The connecting rod 24 is slidably arranged in the linear bearing 28, which ensures the accuracy and sensitivity of the movement of the bracket slider 2. In order to prevent the linear bearing 28 from falling out of the third mounting hole 13, a step is provided at one end of the second mounting hole 12 close to the limit block 23, and a limit plate 27 is also provided on the second side of the frame 1. The linear bearing 28 is firmly limited between the step and the limit plate 27. The limit plate 27 is connected to the fourth mounting hole 14 by bolts. Figure 5 It can be seen that an arc-shaped recessed portion is respectively provided at both ends of the limiting piece 27 , which can avoid two adjacent connecting rods 24 in two adjacent bracket sliders 2 and limit the linear bearings 28 used to install the two connecting rods 24 .

[0048] 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 principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A lifting mechanism for a cigarette collecting machine, characterized in that: It comprises a bracket slider installed on a frame, the bracket slider comprises a connecting rod penetrating the frame, a limiting block is arranged at the first end of the connecting rod, a slider is arranged at the second end, and an inclined surface facing downward is arranged at the end of the slider; a spring is also arranged between the frame and the slider.

2. The lifting mechanism according to claim 1, characterized in that: A fixing block is provided at the second end of the connecting rod, and the sliding block is mounted on the fixing block.

3. The lifting mechanism according to claim 1, characterized in that: The frame comprises a first side surface and a second side surface which are arranged opposite to each other, wherein the first side surface faces the limit block and the second side surface faces the sliding block; and a plurality of buffer blocks are respectively arranged on the first side surface and the second side surface.

4. The lifting mechanism according to claim 1, characterized in that: A linear bearing is arranged in the frame, and the connecting rod is slidably arranged in the linear bearing.

5. The lifting mechanism according to claim 4, characterized in that: A limit plate is also installed on the frame, and the limit plate is used to prevent the linear bearing from escaping from the frame.

6. The lifting mechanism according to claim 1, characterized in that: The angle between the inclined plane and the horizontal plane is 55°.

7. The lifting mechanism according to claim 1, characterized in that: The number of the racks is two, the two racks are arranged opposite to each other on the left and right, and a plurality of the bracket sliders are installed on each rack.

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