Air suction chamber and cigarette connecting device

Abstract

The utility model relates to an air suction chamber and a cigarette tipping device, and the air suction chamber comprises an air chamber body which is provided with a mounting surface perpendicular to a first direction; the cover plate is rotatably connected with the air chamber body; the first guide wheel and the second guide wheel are arranged at intervals in the second direction and are arranged on the mounting surface; the first locking device is located between the first guide wheel and the second guide wheel in the second direction and provided with a first body perpendicular to the first direction and a second body perpendicular to the third direction, and the first body is connected with the mounting face; the second locking device is matched with the first locking device, is arranged on one side, close to the air chamber body, of the cover plate and is configured to limit relative displacement of the cover plate and the air chamber body when the cover plate covers the air chamber body; the cut tobacco suction belt is configured to be installed between the first guide wheel and the second guide wheel in the second direction; the first locking device is provided with a fool-proof piece connected with the second body, and the extending direction of the fool-proof piece is not parallel to the plane where the first body is located so as to limit contact between the cut tobacco suction belt and the second body.

Description

Technical Field

[0001] The present disclosure relates to the field of tobacco machinery and equipment, and in particular to an air suction chamber and a cigarette receiving and loading device. Background Art

[0002] The feeder and strip forming machine of the cigarette making unit is composed of a feeder system, a stem separation system, a suction and forming system, and a cigarette weight control system. The air chamber body is an important part of the suction and forming system. The air chamber cover and the air chamber body are combined to form a negative pressure suction chamber. The cover is connected to the air chamber body with a long hinge and can be opened and closed. When closed during operation, it is locked by a lock hook and a pin shaft to form a negative pressure chamber. The negative pressure is provided by a high-pressure fan.

[0003] A suction forming groove is installed at the bottom of the suction chamber. The suction belt is installed at the central symmetrical position of the suction forming groove around each guide wheel and is tensioned by the cylinder and the suction belt tensioning wheel. The suction belt driving wheel drives the suction belt to operate. The mesh holes on the suction belt absorb the tobacco and transport it forward. Under the action of the suction forming groove, a tobacco bundle of a certain width is formed and transported to the leveler device for trimming and shaping, and then sent to the cigarette forming system for rolling.

[0004] Research has found that the position of the lock hook of the air chamber cover in the relevant technology is close to the running path of the suction belt. In the process of tightening and stretching the suction belt and inserting it into the tail guide wheel, the suction belt is easily mistakenly passed around the upper part of the lock hook and is not easy to find, causing the suction belt to interfere with the lock hook, resulting in damage to the suction belt, many empty cigarettes and other problems. The damage of the suction belt also poses a quality risk of tobacco impurities. Utility Model Content

[0005] In view of this, an embodiment of the present disclosure provides a suction chamber and a cigarette receiving device to reduce the risk of interference between the suction belt and the locking hook.

[0006] In one aspect of the present disclosure, there is provided an air suction chamber, comprising:

[0007] The air chamber body has a mounting surface perpendicular to the first direction;

[0008] A cover plate rotatably connected to the air chamber body;

[0009] A first guide wheel and a second guide wheel are arranged at intervals along the second direction, and the first guide wheel and the second guide wheel are arranged on the mounting surface;

[0010] A first locking device is located between the first guide wheel and the second guide wheel along the second direction, and has a first main body perpendicular to the first direction and a second main body perpendicular to the third direction, and the first main body is connected to the mounting surface;

[0011] A second locking device matched with the first locking device is arranged on a side of the cover plate close to the air chamber body and is configured to limit the relative displacement between the cover plate and the air chamber body when the cover plate covers the air chamber body;

[0012] A suction belt is configured to be installed between the first guide wheel and the second guide wheel along the second direction;

[0013] The first locking device has a foolproof part connected to the second body, and the extension direction of the foolproof part is not parallel to the plane where the first body is located, so as to limit the contact between the suction ribbon and the second body;

[0014] The first direction is perpendicular to the second direction and the third direction.

[0015] In some embodiments, the foolproof member extends along the first direction away from the first body.

[0016] In some embodiments, the angle between the extension direction of the anti-foolproof component and the third direction is 10° to 20°.

[0017] In some embodiments, the angle between the extension direction of the anti-foolproof component and the third direction is 15°.

[0018] In some embodiments, the height of the end of the foolproof member along the third direction is greater than or equal to the height of the suction ribbon along the third direction when the suction ribbon is tensioned.

[0019] In some embodiments, the connection point between the foolproof member and the second body is located on a side away from the installation surface relative to the first guide wheel and the second guide wheel along the first direction, and the suction wire is inclined toward a side close to the first body relative to the second direction when contacting the foolproof member during the installation process;

[0020] The outer peripheral edge of the second body on a side away from the first body is inclined toward a side close to the first body relative to the second direction.

[0021] In some embodiments, the outer peripheral edge of the second body on a side away from the first body is in an arc shape.

[0022] In some embodiments, the second locking device includes a stopper configured to abut against the foolproof member when the cover plate covers the air chamber body;

[0023] The end of the anti-mistake piece is provided with an inclined surface which cooperates with the stopper.

[0024] In some embodiments, the foolproof component, the first body and the second body are integrally formed.

[0025] In another aspect of the present disclosure, a cigarette receiving and loading device is provided, comprising a suction chamber as in any of the above embodiments.

[0026] Therefore, according to the embodiment of the present disclosure, by providing an anti-fouling piece on the second body that is not parallel to the first body, the contact between the suction belt and the second body can be limited, thereby reducing the risk of the suction belt being wrapped around the second body and unable to be reset during installation, and guiding the taut suction belt to move downward and fall into the correct installation position below, thereby improving the operating reliability of the air chamber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0028] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0029] Figure 1 It is a structural schematic diagram of some embodiments of the suction chamber in the related art;

[0030] Figure 2 It is a schematic structural diagram of some embodiments of the interference between the suction belt of the suction chamber and the first locking device in the related art;

[0031] Figure 3 It is a structural schematic diagram of the cooperation between the first locking device and the suction belt according to some embodiments of the suction chamber disclosed in the present invention;

[0032] Figure 4 is a side view of some embodiments of the suction chamber according to the present disclosure.

[0033] In the figure:

[0034] 1. air chamber body; 11. mounting surface; 2. cover plate; 31. first guide wheel; 32. second guide wheel; 4. first locking device; 41. first main body; 42. second main body; 421. outer peripheral edge; 422. locking groove; 43. foolproof part; 431. inclined surface; 5. second locking device; 51. stopper; 6. suction ribbon;

[0035] A, first direction; B, second direction; C, third direction

[0036] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0038] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0040] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0041] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0042] Figure 1 is a schematic diagram of the structure of some embodiments of the suction chamber in the related art, Figure 2 The present invention is a schematic diagram of the structure of some embodiments of the interference between the suction belt of the suction chamber and the first locking device in the related art. The position of the lock hook of the air chamber cover plate in the related art is close to the running path of the suction belt. In the process of tightening and stretching the suction belt and inserting it into the tail guide wheel, the suction belt is easy to Figure 2As shown, the wire is mistakenly threaded around the upper part of the lock hook and is not easy to find, causing the suction wire to interfere with the lock hook, resulting in problems such as damaged suction wire and many empty cigarettes. The damaged suction wire also poses a quality risk of tobacco impurities.

[0043] In the related technology, this problem is improved by strengthening the training of operators on operation details or having dedicated personnel to check the installation status before and after the shift. However, there are still defects such as human negligence causing incorrect threading of the suction ribbon or resulting in reduced production efficiency.

[0044] In view of this, in one aspect of an embodiment of the present disclosure, a wind chamber body is provided, which can reduce the risk of interference between the suction belt in the wind chamber body and the first locking device.

[0045] Figure 3 is a schematic diagram of the structure of the first locking device and the suction belt according to some embodiments of the suction chamber of the present disclosure, with reference to Figure 3 In some embodiments, the suction chamber includes an air chamber body 1, a cover plate 2, a first guide wheel 31, a second guide wheel 32, a first locking device 4, a second locking device 5 and a suction belt 6.

[0046] The air chamber body 1 has a mounting surface 11 perpendicular to the first direction A, on which a suction wire pulley, a guide wheel, a suction wire driving wheel, a guide wheel, a tensioning wheel, etc. for suction wire forming can be arranged. The suction wire 6 is installed around each guide wheel at a central symmetrical position of the suction wire forming groove and is tensioned by a cylinder and a suction wire tensioning wheel.

[0047] The cover plate 2 is rotatably connected to the air chamber body 1, and is combined with the air chamber body 1 to form a negative pressure suction chamber. The cover plate 2 and the air chamber body 1 can be connected by a long hinge, and the cover plate 2 rotates relative to the air chamber body 1 around an axis parallel to the second direction B.

[0048] The first guide wheel 31 and the second guide wheel 32 are arranged at intervals along the second direction B. The first guide wheel 31 and the second guide wheel 32 are arranged on the installation surface 11. The first guide wheel 31 and the second guide wheel 32 are the last two guide wheels that need to be wound in the installation path of the suction belt 6.

[0049] The first locking device 4 is located between the first guide wheel 31 and the second guide wheel 32 along the second direction B, and has a first body 41 perpendicular to the first direction A and a second body 42 perpendicular to the third direction C. The first body 41 is connected to the mounting surface 11. The first direction A is perpendicular to the second direction B and the third direction C.

[0050] The first body 41 and the second body 42 include but are not limited to flat plate structures. The first body 41 is attached to the mounting surface 11 , and the second body 42 may be provided with a locking groove 422 that cooperates with the second locking device 5 .

[0051] The second locking device 5 is disposed on a side of the cover plate 2 close to the air chamber body 1, and cooperates with the second body 42 of the first locking device 4, and is configured to limit the relative displacement of the cover plate 2 and the air chamber body 1 when the cover plate 2 covers the air chamber body 1. The second locking device 5 includes but is not limited to a pin shaft, which extends into the locking groove 422 when the cover plate 2 covers the air chamber body 1.

[0052] The cover plate 2 is rotated to close the air chamber body 1 and is locked by the first locking device 4 and the second locking device 5 so that a negative pressure environment is formed in the air suction chamber, and the negative pressure is provided by the high-pressure fan.

[0053] The suction belt 6 is a key part for tobacco forming. At the same time, the nylon-made suction belt 6 is also a consumable part. It needs to be replaced every 6 hours of continuous production to ensure a good tobacco conveying state. When replacing, remove the blade locking screw, swing the blade open, and the operator holds both ends of the suction belt 6 with both hands, and passes through the suction belt pulley, guide wheel, suction belt drive wheel, guide wheel, tension wheel, and first guide wheel 31 in turn. Finally, use both hands to tighten and open the suction belt 6, put it into the second guide wheel 32, and then reset the blade and lock the screw to complete the installation of the suction belt 6. The suction belt 6 is configured to be installed between the first guide wheel 31 and the second guide wheel 32 along the second direction B.

[0054] The first locking device 4 has a foolproof part 43 connected to the second body 42, and the extension direction of the foolproof part 43 is not parallel to the plane where the first body 41 is located, so as to limit the suction ribbon 6 from contacting the second body 42. The foolproof part 43 can be inclined close to the plane where the second body 42 is located, and can also be inclined in a direction away from the first locking device 4.

[0055] During the installation process of tightening and stretching the suction belt 6 and inserting it into the second guide wheel 32, it is easy to wrap around along the third direction C to the plane above the second main body 42 of the first locking device 4. The anti-mistake piece 43 is set at an angle to the second main body 42, which can limit the movement of the suction belt 6 in the direction close to the first main body 41, thereby reducing the risk of the suction belt 6 contacting the plane where the second main body 42 is located and being hooked on the second main body 42.

[0056] In this embodiment, by providing an anti-mock piece 43 on the second body 42 that is not parallel to the first body 41, the contact between the suction belt 6 and the second body 42 can be limited, thereby reducing the risk of the suction belt 6 being unable to be reset after being wrapped around the second body 42 during installation, and guiding the taut suction belt 6 to move downward and fall into the correct installation position below, thereby improving the operating reliability of the air chamber body.

[0057] refer to Figure 3In some embodiments, the foolproof member 43 extends in the first direction A away from the first body 41. In this embodiment, by setting the foolproof member 43 to extend in the first direction A away from the first body 41, the suction wire 6 can be further restricted from approaching the second body 42, reducing the risk of interference between the suction wire 6 and the first locking device 4, and improving the quality of suction wire forming.

[0058] Figure 4 is a side view of some embodiments of the suction chamber according to the present disclosure, Figure 4 The dotted line portion in the figure is the cover plate 2 when the suction chamber is in the open state. Figure 4 The solid line part in the figure is the air chamber body 1 and the cover plate 2 when the air suction chamber is in the closed state. Figure 3 and Figure 4 In some embodiments, the angle between the extension direction of the anti-foolproofing member 43 and the third direction C is 10° to 20°.

[0059] In this embodiment, when the angle between the anti-foolproof component 43 and the third direction C is larger, the risk of the suction belt 6 contacting the second main body 42 can be limited to a greater extent. However, when the angle of the anti-foolproof component 43 is too large, it is easy to contact the cover plate 2 when the cover plate 2 and the air chamber body 1 are covered. Therefore, the angle between the extension direction of the anti-foolproof component 43 and the third direction C is set to 10°~20°, which can not only achieve a better limiting effect on the suction belt 6, but also avoid interference with the cover plate 2, so that the suction chamber has good operability and reliability.

[0060] refer to Figure 3 and Figure 4 In some embodiments, the angle between the extension direction of the foolproof member 43 and the third direction C is 15°. In this embodiment, the angle between the extension direction of the foolproof member 43 and the third direction C is preferably 10° to 20°.

[0061] In some embodiments, the height of the end of the anti-foolproofing member 43 along the third direction C is greater than or equal to the height of the suction ribbon 6 when it is stretched along the third direction C. In this embodiment, the height of the end of the anti-foolproofing member 43 in the third direction C is greater than or equal to the height of the suction ribbon 6 when it is stretched, so as to prevent the suction ribbon from passing over the anti-foolproofing member 43 and entering the area above the second body 42.

[0062] refer to Figure 3 and Figure 4 In some embodiments, the connection point between the anti-foolproofing member 43 and the second body 42 is located on the side away from the mounting surface 11 relative to the first guide wheel 31 and the second guide wheel 32 along the first direction A, and the suction belt 6 is inclined toward the side close to the first body 41 relative to the second direction B when it contacts the anti-foolproofing member 43 during the installation process.

[0063] The outer peripheral edge 421 of the second body 42 away from the first body 41 is inclined toward the side close to the first body 41 relative to the second direction B. The angle at which the outer peripheral edge 421 is inclined toward the side close to the first body 41 relative to the second direction B can be determined by the posture of the suction belt 6 when the suction belt 6 contacts the anti-foolproof component 43.

[0064] In this embodiment, by making the angle formed by the outer edge 421 and the second direction B greater than the angle formed by the suction belt 6 and the second direction B, it can prevent the suction belt 6 from being intercepted by the edge of the second main body 42 when the suction belt 6 falls along the anti-foolproof member 43, so that the suction belt 6 can smoothly return to the working position between the first guide wheel 31 and the second guide wheel 32.

[0065] refer to Figure 4 In some embodiments, the outer peripheral edge 421 of the second body 42 away from the first body 41 is in an arc shape. In this embodiment, by setting the outer peripheral edge 421 to a smoothly transitioned arc shape, a certain margin can be made between the outer peripheral edge 421 and the trajectory of the suction ribbon 6 falling along the outer periphery of the anti-fool component 43, so as to prevent the suction ribbon 6 from being blocked from falling back to the correct installation position.

[0066] refer to Figure 4 In some embodiments, the second locking device 5 includes a stopper 51, which is configured to abut against the foolproof member 43 when the cover plate 2 covers the air chamber body 1. The end of the foolproof member 43 is provided with a slope 431 that cooperates with the stopper 51.

[0067] In this embodiment, by processing the inclined surface 431 at the end of the anti-foolproof member 43, it can be avoided that the anti-foolproof member 4 and the peripheral stopper 51 collide or interfere when the cover plate 2 is closed, thereby preventing damage to the equipment.

[0068] refer to Figure 3 and Figure 4 In some embodiments, the foolproof part 43, the first body 41 and the second body 42 are integrally formed. In this embodiment, the foolproof part 43, the first body 41 and the second body 42 are integrally formed, which is convenient for processing and installation, and helps to improve the reliability of the limit of the foolproof part 43.

[0069] In another aspect of the present disclosure, a cigarette receiving and loading device is provided, comprising a suction chamber as in any of the above-mentioned embodiments. In this embodiment, the suction chamber of the cigarette receiving and loading device can prevent the suction belt 6 from being incorrectly wound and interfering with the first locking device during installation by providing an anti-foolproof member, thereby improving production efficiency, enhancing the quality of cigarette products, and extending the service life of equipment parts.

[0070] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0071] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A suction chamber, characterized in that: include: The air chamber body (1) has a mounting surface (11) perpendicular to the first direction (A); A cover plate (2) rotatably connected to the air chamber body (1); A first guide wheel (31) and a second guide wheel (32) are arranged at intervals along the second direction (B), wherein the first guide wheel (31) and the second guide wheel (32) are arranged on the mounting surface (11); a first locking device (4), located between the first guide wheel (31) and the second guide wheel (32) along the second direction (B), comprising a first body (41) perpendicular to the first direction (A) and a second body (42) perpendicular to the third direction (C), the first body (41) being connected to the mounting surface (11); a second locking device (5) cooperating with the first locking device (4), arranged on a side of the cover plate (2) close to the air chamber body (1), and configured to limit the relative displacement between the cover plate (2) and the air chamber body (1) when the cover plate (2) covers the air chamber body (1); A suction belt (6) is configured to be installed between the first guide wheel (31) and the second guide wheel (32) along the second direction (B); The first locking device (4) has an anti-foolproofing piece (43) connected to the second body (42), and the extension direction of the anti-foolproofing piece (43) is not parallel to the plane where the first body (41) is located, so as to limit the contact between the suction ribbon (6) and the second body (42); The first direction (A) is perpendicular to the second direction (B) and the third direction (C).

2. The suction chamber according to claim 1, characterized in that: The foolproof component (43) extends along the first direction (A) in a direction away from the first body (41).

3. The suction chamber according to claim 2, characterized in that: The angle between the extending direction of the foolproof component (43) and the third direction (C) is 10° to 20°.

4. The suction chamber according to claim 3, characterized in that: The angle between the extending direction of the foolproof component (43) and the third direction (C) is 15°.

5. The suction chamber according to claim 1, characterized in that: The height of the end of the foolproof part (43) along the third direction (C) is greater than or equal to the height of the suction belt (6) along the third direction (C) when the suction belt (6) is tensioned.

6. The suction chamber according to claim 2, characterized in that: The connection point between the foolproof part (43) and the second body (42) is located on a side away from the installation surface (11) relative to the first guide wheel (31) and the second guide wheel (32) along the first direction (A), and the suction belt (6) is inclined toward a side close to the first body (41) relative to the second direction (B) when contacting the foolproof part (43) during the installation process; Wherein, the outer peripheral edge (421) of the second body (42) on the side away from the first body (41) is inclined toward the side close to the first body (41) relative to the second direction (B).

7. The suction chamber according to claim 6, characterized in that: An outer peripheral edge (421) of the second body (42) on a side away from the first body (41) is in an arc shape.

8. The suction chamber according to claim 1, characterized in that: The second locking device (5) comprises a stopper (51), and the stopper (51) is configured to abut against the foolproof part (43) when the cover plate (2) covers the air chamber body (1); Wherein, the end of the fool-proof part (43) is provided with an inclined surface (431) that cooperates with the stopper (51).

9. The suction chamber according to claim 1, characterized in that: The foolproof component (43), the first main body (41) and the second main body (42) are integrally formed.

10. A cigarette receiving and loading device, characterized in that: It comprises a suction chamber as described in any one of claims 1 to 9.

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