Cigarette conveying, turning and separating device with double suction claws

Abstract

The invention relates to the technical field of cigarette production, in particular to a double-suction-claw cigarette conveying, turning and separating device which comprises a driving mechanism, a supporting seat, a cam and a wheel body, the cam and the wheel body are coaxially arranged on the supporting seat in a sleeving mode, the driving mechanism drives the wheel body to rotate, and multiple sets of rotating assemblies are arranged on the wheel body at intervals in the circumferential direction. The rotating assembly comprises two rack shafts, two gear shafts and two suction claws, the two rack shafts are movably inserted into the wheel body in the axial direction of the wheel body and are spaced in the radial direction and the circumferential direction of the wheel body, and the two gear shafts are rotatably inserted into the wheel body in the radial direction of the wheel body, are spaced in the axial direction of the wheel body and are located between the two rack shafts; the two gear shafts are meshed with the two rack shafts respectively, the two suction claws are connected with the two gear shafts respectively and located on the peripheral face of the wheel body, and the cam is provided with two annular working faces which are in contact fit with the two rack shafts respectively and drive the two rack shafts to reciprocate in the same direction in the axial direction of the wheel body when the wheel body rotates. Cigarettes can be rotated, turned around and separated in the cigarette conveying process.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette production, and in particular to a double-suction-claw cigarette conveying, turning and separating device. Background Art

[0002] The typical structure of a traditional filter cigarette is a single-length cigarette rod and a single-length filter wrapped with single-width tipping paper. The typical production process of traditional filter cigarettes is to cut the double-length cigarette rod in the middle, separate it for a distance, put a double-length filter segment in the middle, and bring the cigarette rod and filter segment together in the middle; then, stick double-width tipping paper in the center on the outside of the filter, and twist and wrap the tipping paper around the filter and the outside of the cigarette rod to form a double-length filter cigarette; finally, cut the filter cigarette in the middle to form two single-length filter cigarettes.

[0003] Due to the emergence of new tobacco products, the structures of many new cigarettes are different from traditional filter cigarettes. The tobacco rod segments of new cigarettes are composed of multiple tobacco segments to form a composite tobacco rod segment, which is finally wrapped with the filter segment through corking paper to form a new cigarette. During the production process, the composite tobacco rod segments of new cigarettes have to go through multiple cutting, multiple separations, multiple twisting and twisting, and rotation and turning actions, which is completely different from the production process of transmission filter cigarettes, so the required equipment is also completely different.

[0004] The typical new cigarette structure has a main structure of a composite section and a filter section wrapped by corking paper. Among them, the composite section is composed of multiple component sections wrapped by cigarette paper according to product requirements. The typical structure of the composite section is usually a ternary structure, containing three components, namely, a tobacco section, a hollow section, and a cooling section. According to the structure of the ternary new cigarette, it must go through four cutting, three separations, two twisting and one turning processes during the production process, and finally form two new cigarettes with complete composite structures at the same time. In this production process, between the two twisting processes, the composite tobacco rod must undergo a rotational turning and separation action, and these process processes must be carried out on the same drum surface. Therefore, the drum not only needs to have the function of conveying cigarettes, but also must have the functions of rotating and turning cigarettes and separating them.

[0005] However, there is no drum wheel with the above functions in the production equipment of traditional cigarettes. Therefore, a new drum wheel is urgently needed to meet the special process of new cigarettes. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a double-suction claw cigarette conveying, turning and separating device, which can realize the rotational turning and separation of cigarettes during the process of conveying cigarettes.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a double-suction-claw cigarette conveying, turning and separating device, comprising a driving mechanism, a support seat, and a cam and a wheel body coaxially sleeved on the support seat, wherein the cam is fixed to the support seat, and the wheel body is driven by the driving mechanism to rotate relative to the support seat, and a plurality of rotating components arranged at intervals along the circumferential direction are arranged on the wheel body, and the rotating components comprise two rack shafts, two gear shafts and two suction claws for adsorbing cigarettes, and the two rack shafts are movably inserted into the wheel body along the axial direction of the wheel body from the end surface of one end of the wheel body close to the cam, and the two rack shafts are spaced at intervals along the radial direction and the circumferential direction of the wheel body. The two gear shafts are rotatably inserted into the wheel body along the radial direction of the wheel body from the outer circumference of the wheel body, the two gear shafts are spaced apart along the axial direction of the wheel body and are located between the two rack shafts, the two gear shafts are respectively meshed with the two rack shafts through gear teeth, the two suction claws are respectively connected to the two gear shafts and are located on the outer circumference of the wheel body, and two annular working surfaces are provided on the end face of the cam close to the wheel body, the two annular working surfaces are respectively in contact with and cooperate with the two rack shafts and respectively drive the two rack shafts to reciprocate in the same direction along the axial direction of the wheel body when the wheel body rotates.

[0009] Preferably, a spring is provided between the rack shaft and the wheel body, and the spring elastically presses between the wheel body and the rack shaft to keep the rack shaft in contact with the annular working surface of the cam.

[0010] Preferably, a roller is provided on one end of the rack shaft close to the cam, and the rack shaft is in rolling contact with the annular working surface of the cam through the roller.

[0011] Preferably, the driving mechanism comprises a driving shaft and a driving member, wherein the driving shaft is rotatably disposed in the supporting seat and connected to the wheel body, and the driving member is connected to the driving shaft and drives the driving shaft to rotate.

[0012] Preferably, the suction claw comprises a proximal portion and a distal portion, the proximal portion is connected to the gear shaft, and the distal portion is connected to the proximal portion, and the proximal portion and the distal portion are respectively used to absorb a cigarette.

[0013] Preferably, the suction claw is provided with a suction groove for accommodating cigarettes, and the groove wall of the suction groove is provided with a negative pressure hole for adsorbing cigarettes.

[0014] Compared with the prior art, the present invention has significant improvements:

[0015] The double suction claw cigarette conveying, turning and separating device of the present invention, when the wheel body is driven to rotate by the driving mechanism, each group of rotating components and the cigarettes adsorbed on the suction claws of the rotating components rotate synchronously therewith, so as to realize cigarette conveying. At the same time, when the wheel body rotates, the two rack shafts of each group of rotating components are driven to run along the two annular working surfaces of the cam respectively, so that the two rack shafts move in the same direction along the axial direction of the wheel body, thereby driving the two gear shafts meshing with the two rack shafts respectively between the two rack shafts to rotate in the opposite direction, so that the two suction claws rotate in the opposite direction, and the cigarettes adsorbed on the two suction claws can be rotated and separated. Therefore, the double suction claw cigarette conveying, turning and separating device of the present invention can synchronously rotate the cigarettes symmetrically during the process of conveying cigarettes, so as to realize the rotational turning and separation of the cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the right side appearance of the double-suction claw cigarette conveying, turning and separating device according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the left side appearance of the double-suction claw cigarette conveying, turning and separating device according to an embodiment of the present invention.

[0018] Figure 3 Figure 2 Schematic cross-sectional view along AA direction.

[0019] Figure 4 It is a schematic diagram of the front appearance of the double-suction claw cigarette conveying, turning and separating device according to an embodiment of the present invention.

[0020] Figure 5 Figure 4 Schematic cross-sectional view along the BB direction.

[0021] Figure 6 It is a schematic diagram of the split parts of the suction claws in the double-suction claw cigarette conveying, turning and separating device in an embodiment of the present invention.

[0022] The reference numerals are described as follows:

[0023] 1 Support seat

[0024] 2 Cam

[0025] 2a, 2b Annular working surface

[0026] 3 Wheels

[0027] 4a, 4b Rack shaft

[0028] 5a, 5b gear shaft

[0029] 6a, 6b Suction claws

[0030] 61 Proximal part

[0031] 62 Distal end

[0032] 63 Pins

[0033] 64a, 64b adsorption tank

[0034] 65a, 65b Negative pressure hole

[0035] 7a, 7b Spring

[0036] 8a, 8b Rollers

[0037] 9 Drive shaft

[0038] 10 Drive element

[0039] 11 End cap DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0044] like Figures 1 to 6 As shown, an embodiment of the double-suction claw cigarette conveying, turning and separating device of the present invention.

[0045] See also Figures 1 to 5The double-claw cigarette conveying, turning and separating device of this embodiment comprises a driving mechanism, a support seat 1, a cam 2 and a wheel body 3. The support seat 1 is fixedly arranged, the cam 2 and the wheel body 3 are coaxially sleeved on the support seat 1 and arranged opposite to each other along the axial direction, the cam 2 is fixed to the support seat 1, and the wheel body 3 is driven by the driving mechanism to rotate relative to the support seat 1. The support seat 1 is preferably a bearing seat, and the wheel body 3 is rotatably sleeved and supported on the outer peripheral surface of the support seat 1 through a bearing, and the driving mechanism is connected to the wheel body 3 and drives the wheel body 3 to rotate.

[0046] The wheel body 3 is provided with a plurality of rotating components spaced apart along the circumference, each rotating component has the same structure, and all rotating components are spaced apart along the circumference of the wheel body 3. Preferably, all rotating components are spaced apart evenly along the circumference of the wheel body 3.

[0047] The rotating assembly includes two rack shafts, two gear shafts and two suction claws.

[0048] Among them, the two rack shafts are respectively a rack shaft 4a and a rack shaft 4b. The two rack shafts 4a and 4b are both inserted into the wheel body 3 along the axial direction of the wheel body 3 from the end face of the wheel body 3 close to the cam 2, and the two rack shafts 4a and 4b can both move in the wheel body 3 along the axial direction of the wheel body 3. The two rack shafts 4a and 4b are arranged at intervals along the radial direction of the wheel body 3. At the same time, the two rack shafts 4a and 4b are arranged at intervals along the circumferential direction of the wheel body 3.

[0049] The two gear shafts are respectively a gear shaft 5a and a gear shaft 5b. Both gear shafts 5a and 5b are inserted into the wheel body 3 from the outer peripheral surface of the wheel body 3 along the radial direction of the wheel body 3. Moreover, both gear shafts 5a and 5b can rotate in the wheel body 3. The two gear shafts 5a and 5b are arranged at intervals along the axial direction of the wheel body 3. Moreover, the two gear shafts 5a and 5b are located between the two rack shafts 4a and 4b. The two gear shafts 5a and 5b are respectively meshed with the two rack shafts 4a and 4b through gear teeth. One gear shaft 5a is meshed with one rack shaft 4a through gear teeth to form a gear pair. The other gear shaft 5b is meshed with the other rack shaft 4b through gear teeth to form another gear pair. The two gear pairs do not interfere with each other. Since the two rack shafts 4a, 4b are respectively meshed with the two gear shafts 5a, 5b through gear teeth on opposite sides of the two gear shafts 5a, 5b, when the two rack shafts 4a, 4b make linear motion in the same direction, they will drive the two gear shafts 5a, 5b to rotate in opposite directions.

[0050] The two suction claws are suction claw 6a and suction claw 6b, and both suction claws 6a and 6b are used to suck cigarettes. The two suction claws 6a and 6b are respectively connected to the two gear shafts 5a and 5b and are located on the outer peripheral surface of the wheel body 3, that is, one suction claw 6a is connected to one gear shaft 5a, and the other suction claw 6b is connected to the other gear shaft 5b. Both suction claws 6a and 6b are located on the outer peripheral surface of the wheel body 3. The two gear shafts 5a and 5b rotate in the opposite direction to drive the two suction claws 6a and 6b to rotate in the opposite direction, so that the cigarettes sucked on the two suction claws 6a and 6b can be rotated and separated.

[0051] Two annular working surfaces are provided on the end surface of the cam 2 close to the wheel body 3, namely, the annular working surface 2a and the annular working surface 2b. The two annular working surfaces 2a and 2b are respectively in contact with the two rack shafts 4a and 4b. The two annular working surfaces 2a and 2b are curved surfaces that gradually change along the axial direction of the cam 2. As the driving surface of the cam 2, they provide axial movement strokes for the two rack shafts 4a and 4b. Preferably, springs are provided between the two rack shafts 4a and 4b and the wheel body 3, namely, spring 7a and spring 7b. The spring 7a elastically presses between the wheel body 3 and the rack shaft 4a, so that the rack shaft 4a keeps in contact with the annular working surface 2a of the cam 2. The spring 7b elastically presses between the wheel body 3 and the rack shaft 4b, so that the rack shaft 4b keeps in contact with the annular working surface 2b of the cam 2. Preferably, rollers are provided on the ends of the two rack shafts 4a and 4b near the cam 2, which are rollers 8a and 8b respectively. The rack shaft 4a rolls with the annular working surface 2a of the cam 2 through the roller 8a, and the rack shaft 4b rolls with the annular working surface 2b of the cam 2 through the roller 8b. When the wheel body 3 rotates, the two rack shafts 4a and 4b rotate synchronously therewith and run along the two annular working surfaces 2a and 2b respectively. The two annular working surfaces 2a and 2b respectively drive the two rack shafts 4a and 4b to reciprocate in the same direction along the axial direction of the wheel body 3, thereby driving the two gear shafts 5a and 5b to rotate in opposite directions. The angle of reverse rotation of the two gear shafts 5a, 5b is determined by the axial movement stroke provided by the two annular working surfaces 2a, 2b for the two rack shafts 4a, 4b and the transmission ratio between the rack shafts 4a, 4b and the gear shafts 5a, 5b, and can be designed according to actual needs. During one rotation of the wheel body 3, the two gear shafts 5a, 5b should be able to reversely rotate 180° in a mutually separated posture to achieve the rotation and U-turn of the cigarette adsorbed on the two suction claws 6a, 6b.

[0052] Therefore, in the double suction claw cigarette conveying, turning and separating device of this embodiment, when the wheel body 3 is driven to rotate by the driving mechanism, each group of rotating components and the cigarettes adsorbed on the suction claws 6a, 6b of the rotating components rotate synchronously therewith, thereby realizing cigarette conveying. At the same time, when the wheel body 3 rotates, the two rack shafts 4a, 4b of each group of rotating components are driven to run along the two annular working surfaces 2a, 2b of the cam 2 respectively, so that the two rack shafts 4a, 4b move in the same direction along the axial direction of the wheel body 3, thereby driving the two gear shafts 5a, 5b that are respectively meshed with the two rack shafts 4a, 4b between the two rack shafts 4a, 4b to rotate in the opposite direction, so that the two suction claws 6a, 6b rotate in the opposite direction, thereby realizing the rotation, turning and separation of the cigarettes adsorbed on the two suction claws 6a, 6b. Figure 1 As shown, before the wheel body 3 rotates, the two suction claws 6a and 6b of the rotating assembly are symmetrical and close to each other; Figure 2 As shown, after the wheel body 3 rotates to transport the cigarette, the two suction claws 6a, 6b of the rotating assembly realize rotational U-turn and separation. Therefore, the double suction claw cigarette transporting, U-turning and separating device of this embodiment can synchronously rotate the cigarette symmetrically during the process of transporting the cigarette, realizing rotational U-turn and separation of the cigarette.

[0053] In this embodiment, the two rack shafts 4a, 4b of each rotating component are distributed in two circles, inner and outer, on the end surface of the wheel body 3 near the cam 2. Each rack shaft 4a, 4b is respectively accommodated in an axial through hole on the wheel body 3, which penetrates the wheel body 3 axially along the wheel body 3. The springs 7a, 7b elastically pressing between the wheel body 3 and the rack shafts 4a, 4b are also accommodated in the corresponding axial through holes. The two gear shafts 5a, 5b and two suction claws 6a, 6b of each rotating component are distributed in two rows symmetrically arranged along the axial direction of the wheel body 3 on the outer peripheral surface of the wheel body 3, each row forming a circle around the wheel body 3. Each gear shaft 5a, 5b is respectively accommodated in a radial through hole on the wheel body 3, which penetrates the wheel body 3 radially along the wheel body 3. The axial through hole and radial through hole where the meshing rack shaft and gear shaft are located are connected to each other at the intersection, so that the gear teeth of the rack shaft and gear shaft can mesh with each other.

[0054] See also Figure 5 In this embodiment, preferably, the driving mechanism includes a driving shaft 9 and a driving member 10. The driving shaft 9 is rotatably provided in the support seat 1 and connected to the wheel body 3. The driving member 10 is connected to the driving shaft 9 and drives the driving shaft 9 to rotate. The support seat 1 is preferably a bearing seat that penetrates the interior along the axial direction. The driving shaft 9 is rotatably provided and supported on the inner circumference of the support seat 1 through a bearing. The driving member 10 is connected to one end of the driving shaft 9 on the side close to the cam 2, and the other end of the driving shaft 9 is connected to the wheel body 3 through an end cover 11, so that the driving shaft 9 can be driven to rotate by the driving member 10, and the wheel body 3 can be driven to rotate. The driving member 10 is preferably a motor.

[0055] See also Figure 6 In this embodiment, preferably, the suction claws 6a and 6b are composite suction claws, and the suction claws 6a and 6b include a proximal portion 61 and a distal portion 62. The proximal portion 61 is connected and fixed to the gear shafts 5a and 5b, and the distal portion 62 is connected and fixed to the proximal portion 61 through a pin 63. The proximal portion 61 and the distal portion 62 are respectively used to absorb a cigarette, so that one suction claw 6a and 6b can absorb two cigarettes. Therefore, the double-suction-claw cigarette conveying, turning and separating device of this embodiment can rotate and turn four relatively arranged cigarettes and separate them by distance while conveying them through a set of rotating components, thereby saving more space in the structure, reducing the wear of related moving parts, and greatly improving work efficiency.

[0056] Preferably, the suction claws 6a and 6b are provided with a suction groove for accommodating cigarettes, and the groove wall of the suction groove is provided with negative pressure holes for adsorbing cigarettes. In this embodiment, the proximal end 61 of the suction claws 6a and 6b is provided with a suction groove 64a, and the groove wall of the suction groove 64a is provided with a plurality of negative pressure holes 65a. The suction groove 64a can form negative pressure to adsorb a cigarette through the negative pressure holes 65a; the distal end 62 of the suction claws 6a and 6b is provided with a suction groove 64b, and the groove wall of the suction groove 64b is provided with a plurality of negative pressure holes 65b. The suction groove 64b can form negative pressure to adsorb a cigarette through the negative pressure holes 65b. The two suction grooves 64a and 64b are arranged in parallel. Figure 1 As shown, when the two suction claws 6a and 6b of the rotating assembly are close to each other side by side, the suction grooves 64a on the two suction claws 6a and 6b are butted along the axial direction of the wheel body 3, and the suction grooves 64b on the two suction claws 6a and 6b are butted along the axial direction of the wheel body 3. Preferably, the negative pressure holes 65a and 65b are connected to the internal channel of the wheel body 3 through the negative pressure channel.

[0057] 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 double-claw cigarette conveying, turning and separating device, characterized in that: The invention comprises a driving mechanism, a support seat (1), and a cam (2) and a wheel body (3) coaxially sleeved on the support seat (1); the cam (2) is fixed to the support seat (1); the wheel body (3) is driven by the driving mechanism to rotate relative to the support seat (1); a plurality of rotating components arranged at intervals along the circumferential direction are provided on the wheel body (3); the rotating components comprise two rack shafts (4a, 4b), two gear shafts (5a, 5b) and two suction claws (6a, 6b) for adsorbing cigarettes; the two rack shafts (4a, 4b) are movably inserted into the wheel body (3) along the axial direction of the wheel body (3) from one end surface of the wheel body (3) close to the cam (2); the two rack shafts (4a, 4b) are arranged at intervals along the radial direction and circumferential direction of the wheel body (3); the two gear shafts (5a, 5b) are arranged at intervals from the end surface of the wheel body (3) The outer peripheral surface is rotatably inserted into the wheel body (3) along the radial direction of the wheel body (3); the two gear shafts (5a, 5b) are arranged at intervals along the axial direction of the wheel body (3) and are located between the two rack shafts (4a, 4b); the two gear shafts (5a, 5b) are respectively meshed with the two rack shafts (4a, 4b) through gear teeth; the two suction claws (6a, 6b) are respectively connected to the two gear shafts (5a, 5b) and are located on the outer peripheral surface of the wheel body (3); two annular working surfaces (2a, 2b) are provided on an end surface of the cam (2) close to the wheel body (3); the two annular working surfaces (2a, 2b) are respectively in contact with and matched with the two rack shafts (4a, 4b) and respectively drive the two rack shafts (4a, 4b) to reciprocate in the same direction along the axial direction of the wheel body (3) when the wheel body (3) rotates.

2. The double-claw cigarette conveying, turning and separating device according to claim 1 is characterized in that: A spring (7a, 7b) is provided between the rack shaft (4a, 4b) and the wheel body (3), and the spring (7a, 7b) elastically presses between the wheel body (3) and the rack shaft (4a, 4b) to keep the rack shaft (4a, 4b) in contact with the annular working surface (2a, 2b) of the cam (2).

3. The double-claw cigarette conveying, turning and separating device according to claim 1 is characterized in that: A roller (8a, 8b) is provided on one end of the rack shaft (4a, 4b) close to the cam (2), and the rack shaft (4a, 4b) is in rolling contact with the annular working surface (2a, 2b) of the cam (2) through the roller (8a, 8b).

4. The double-claw cigarette conveying, turning and separating device according to claim 1 is characterized in that: The driving mechanism comprises a driving shaft (9) and a driving member (10); the driving shaft (9) is rotatably inserted into the supporting seat (1) and connected to the wheel body (3); the driving member (10) is connected to the driving shaft (9) and drives the driving shaft (9) to rotate.

5. The double-claw cigarette conveying, turning and separating device according to claim 1 is characterized in that: The suction claws (6a, 6b) include a proximal portion (61) and a distal portion (62); the proximal portion (61) is connected to the gear shaft (5a, 5b); the distal portion (62) is connected to the proximal portion (61); the proximal portion (61) and the distal portion (62) are respectively used to suck one of the cigarettes.

6. The double-claw cigarette conveying, turning and separating device according to claim 1 is characterized in that: The suction claws (6a, 6b) are provided with adsorption grooves (64a, 64b) for accommodating the cigarettes, and the groove walls of the adsorption grooves (64a, 64b) are provided with negative pressure holes (65a, 65b) for adsorbing the cigarettes.

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