A dancer assembly and cut compensation device for tobacco equipment foil

Abstract

A tension roller assembly for tobacco equipment aluminum foil cutting device, comprising a tension roller power part, an eccentric shaft coupling and a tension roller, two ends of the eccentric shaft coupling are connected with the tension roller power part and the tension roller respectively, the tension roller power part drives the eccentric shaft coupling to rotate around a predetermined axis, and an axis of the tension roller is parallel to the predetermined axis; when the eccentric shaft coupling is driven to rotate, the eccentric shaft coupling itself rotates around the predetermined axis, and since the axis of the tension roller is parallel to but not coincident with the predetermined axis, the tension roller revolves around the predetermined axis.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tobacco, in particular to a slack-tight roller assembly and a cutting compensation device for aluminum foil of a tobacco equipment. BACKGROUND

[0002] In the aluminum foil packaging of the tobacco industry, the most commonly used is the cutting and wrapping method by on-site conveying of the reel aluminum foil, which has the advantage of stable aluminum foil conveying and suction, avoiding various problems of poor suction of pre-cut aluminum foil. However, with the rise of fancy cigarettes, various sizes of aluminum foil specifications are emerging, and the changes in aluminum foil material, thickness, and width have caused new instability in aluminum foil cutting and conveying.

[0003] Since the aluminum foil is conveyed downstream by the embossing roller clamped and rotated, in order to keep the aluminum foil always tight during conveying, the diameter of the embossing roller is designed to be slightly smaller than that of the cutting suction roller during design of the equipment, so the linear speed of the embossing roller is smaller than that of the suction roller, which can ensure the tightness of the aluminum foil. However, when the paper is too thin and narrow, the tight aluminum foil will be torn after cutting by the point cutter due to tension. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present application is to provide a slack-tight roller assembly and a cutting compensation device for aluminum foil of a tobacco equipment.

[0005] The present application provides a slack-tight roller assembly for an aluminum foil cutting device of a tobacco equipment, which comprises a slack-tight roller power part, an eccentric shaft coupling, and a slack-tight roller. The two ends of the eccentric shaft coupling are connected to the slack-tight roller power part and the slack-tight roller, respectively. The slack-tight roller power part drives the eccentric shaft coupling to rotate around a predetermined axis. The axis of the slack-tight roller is parallel to the predetermined axis.

[0006] Preferably, the eccentric shaft coupling is provided with a mounting hole at one end connected to the slack-tight roller power part, and the axis of the mounting hole is parallel to the axis of the slack-tight roller.

[0007] A cutting compensation device for aluminum foil of a tobacco equipment, comprising the above-mentioned slack-tight roller assembly, an embossing roller assembly, and a cutting roller assembly. The embossing roller assembly comprises an embossing roller group and an embossing roller group power part for driving the embossing roller group to rotate. The embossing roller group is used for embossing the aluminum foil entering the embossing roller group. The cutting roller assembly comprises a cutting roller for cutting the aluminum foil wound on the cutting roller. The slack-tight roller is located between the embossing roller group and the cutting roller, and the roller end face of the slack-tight roller abuts against the aluminum foil for guiding the aluminum foil to turn.

[0008] Preferably, the power unit of the embossing roller assembly includes an embossing drive motor, and the power unit of the tension roller assembly includes a tension roller drive shaft connected to the eccentric coupling and a first transmission mechanism connecting the tension roller drive shaft and the output shaft of the drive motor.

[0009] Preferably, the cutting compensation device further includes a transmission roller assembly, which includes a transmission roller and a transmission roller power unit. The transmission roller is installed between the tension roller group and the embossing roller group. The transmission roller power unit includes a second transmission mechanism, which is a driven gear disposed on the transmission roller and a driving gear disposed on the power unit of the embossing roller group.

[0010] Preferably, the tension roller power unit includes a tension roller drive shaft and a third transmission mechanism connecting the tension roller drive shaft and the transmission roller.

[0011] Preferably, the first or third transmission mechanism is a pulley set.

[0012] As described above, the tension roller assembly of the present invention has the following beneficial effects: when the eccentric coupling is driven to rotate, the eccentric coupling itself rotates around a predetermined axis. Since the axis of the tension roller is parallel to and does not coincide with the predetermined axis, the tension roller revolves around the predetermined axis. The aluminum foil cutting device of the tobacco equipment equipped with the tension roller assembly, as the tension roller rotates, first gradually tensions the aluminum foil from a relaxed state to the tightest state, and then gradually relaxes it from the tightest state (the relaxation and tension mentioned here refer to small adjustments without affecting the normal cutting of the aluminum foil, not complete relaxation). When the aluminum foil switches from the tightest state to the relaxed state, the aluminum foil is cut, so that the aluminum foil is not torn by tension after cutting, which greatly improves the cutting and conveying stability of the aluminum foil. Attached Figure Description

[0013] Figure 1 This is a simplified flowchart of the aluminum foil cutting process for a cutting compensation device for tobacco equipment according to the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of a cutting compensation device for aluminum foil in tobacco equipment according to the present invention.

[0015] Figure 3 This is another structural schematic diagram of a cutting compensation device for aluminum foil in tobacco equipment according to the present invention.

[0016] Figure 4 This is another structural schematic diagram of a cutting compensation device for aluminum foil in tobacco equipment according to the present invention.

[0017] Figure 5 This is a schematic diagram of the tension roller connection eccentric coupling of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 100. Tension roller assembly; 110. Tension roller power unit; 111. Drive pulley; 112. Driven pulley; 113. Drive belt; 120. Eccentric coupling; 121. Mounting hole; 130. Tension roller; 200. Embossing roller assembly; 220. First printing roller; 221. Second printing roller; 230. Printing driven gear; 300. Cutting roller assembly; 310. Suction roller; 320. Cutting roller; 400. Drive roller assembly; 410. Drive roller; 420. Drive roller power unit; 421. Drive gear; 422. Driven gear; 500. Aluminum foil. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0021] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0022] like Figure 5 As shown, an embodiment of a tension roller assembly 100 is used in a tobacco equipment aluminum foil cutting device. It includes a tension roller power unit 110, an eccentric coupling 120, and a tension roller 130. The two ends of the eccentric coupling 120 are respectively connected to the tension roller power unit 110 and the tension roller 130. The tension roller power unit 110 drives the eccentric coupling to rotate around a predetermined axis. The axis of the tension roller 130 is parallel to the predetermined axis.

[0023] The tension roller power unit 110 can be an independent drive motor or a transmission mechanism installed after the aluminum foil cutting device of the tobacco equipment and connected to some power components of the aluminum foil cutting device. When the eccentric coupling 120 is driven to rotate, the eccentric coupling 120 itself rotates around the predetermined axis L1. Since the axis L2 of the tension roller 130 is parallel to and does not coincide with the predetermined axis L1, the tension roller 130 revolves around the predetermined axis L1.

[0024] Of course, in order to facilitate installation, the eccentric shaft coupling used to connect one end of the power part of the tensioning roller is provided with a mounting hole 121, the axis of the mounting hole 121 is parallel to the axis of the tensioning roller. The axis of the mounting hole can be used as the predetermined axis.

[0025] As shown in Figures 1-5 When the tensioning roller assembly is installed in the aluminum foil cutting device of the tobacco equipment, the working condition can be described by an embodiment of the cutting compensation device for the aluminum foil of the tobacco equipment according to the present application. Specifically, the cutting compensation device comprises the tensioning roller assembly 100, an embossing roller assembly 200 and a cutting roller assembly 300. The embossing roller assembly 200 comprises an embossing roller set and an embossing roller set power part for driving the rotation of the embossing roller set, and the embossing roller set is used for embossing the aluminum foil 500 entering the embossing roller set. The cutting roller assembly 300 comprises a cutting roller 320 for cutting the aluminum foil 500 wound on the cutting roller 320. The tensioning roller 130 is located between the embossing roller and the cutting roller 320, and the roller end face of the tensioning roller 130 abuts against the aluminum foil 500 for guiding the turning of the aluminum foil 500.

[0026] In normal operation, after the aluminum foil 500 is embossed by the embossing roller set, it is guided by the tensioning roller 130 to enter the cutting roller 320 for cutting the aluminum foil 500. It should be noted that when the tensioning roller 130 rotates, a small amplitude of swing is realized due to the action of the eccentric shaft coupling 120, which drives the tensioning and relaxation of the aluminum foil 500. Specifically, with the rotation of the tensioning roller 130, the aluminum foil 500 is first gradually tensioned from the relaxed state to the most taut state, and then gradually relaxed from the most taut state. Of course, the relaxation and tensioning referred to here refer to small amplitude adjustment without affecting the normal cutting of the aluminum foil 500, and not complete relaxation. When the aluminum foil 500 is tensioned to the most taut state and switched to the relaxed state, the aluminum foil 500 is cut, so that the aluminum foil 500 can not be torn by tension after cutting, greatly improving the cutting and conveying stability of the aluminum foil 500.

[0027] In this embodiment, the embossing roller set comprises a first embossing roller 220 and a second embossing roller 221, the embossing roller set power part comprises an embossing driving motor (not shown in the figure), an embossing driving gear 421 connected with the first embossing roller 220 and an embossing driven gear 230 connected with the second embossing roller 221, and the output shaft of the embossing driving motor is connected with the first embossing roller 220. After the embossing driving motor is started, the first embossing roller 220 rotates, the embossing driving gear 421 meshes with the embossing driven gear 230, and the second embossing roller 221 is driven to rotate.

[0028] In the embodiment, the cutting compensation device further comprises a transmission roller assembly 400, which comprises a transmission roller 410 and a transmission roller power unit 420. The transmission roller 410 is arranged between the tensioning roller group 130 and the embossing roller group. The transmission roller power unit 420 comprises a second transmission mechanism, which comprises a driven gear 422 arranged on the transmission roller 410 and a driving gear 421 arranged on the embossing roller group power unit and engaged with the driven gear 422. The driving gear 421 is the embossing roller driving gear 421. The transmission roller 410 guides the aluminum foil 500 conveyed by the embossing roller group to the tensioning roller 130, and also functions as a certain buffer to avoid the small amplitude swing of the tensioning roller 130 directly affecting the normal work of the embossing roller group.

[0029] Preferably, the tensioning roller power unit 110 comprises a tensioning roller driving shaft (not shown in the figure) connected with the eccentric shaft coupling and a third transmission mechanism connected with the transmission roller 410. The third transmission mechanism is a pulley set, which comprises a driving pulley 111 arranged on the transmission roller 410, a driven pulley 112 arranged on the tensioning roller driving shaft, and a transmission belt 113. The start of the embossing driving motor simultaneously starts the embossing roller group, the transmission roller assembly 400 and the tensioning roller assembly, which embosses, guides and then cuts the aluminum foil 500. The tensioning roller group power unit, the transmission roller assembly power unit and the embossing roller group power unit are compact in structure, realizing the synchronous work of embossing, guiding, tensioning and relaxing. Of course, in the case where the transmission roller assembly 400 is not installed, the first transmission mechanism can be used to connect the swing driving shaft and the transmission roller 410. The first transmission mechanism can also be a pulley set, which will not be described here.

[0030] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A dancer assembly, comprising: The utility model provides a tobacco equipment aluminum foil cutting device, including tensioning roller power part (110), eccentric shaft coupling (120) and tensioning roller (130), both ends of eccentric shaft coupling (120) are connected tensioning roller power part (110) and tensioning roller (130) respectively, tensioning roller power part (110) drives eccentric shaft coupling revolves around predetermined axis, the axis of tensioning roller (130) is parallel with predetermined axis, the roller end face of tensioning roller (130) is against aluminum foil (500), when tensioning roller (130) rotates, slightly adjusts to aluminum foil (500), makes aluminum foil (500) between the slack state and the most tight state periodically switch, wherein, when aluminum foil (500) is tensioned to the most tight state and switches to the slack state, cuts aluminum foil (500), can not be torn by tension after cutting aluminum foil (500).

2. A dancer assembly as set forth in claim 1 wherein, The eccentric shaft coupling (120) is provided with a mounting hole (121) at one end for connecting the tensioning roller power part (110), and the axis of the mounting hole (121) is parallel to the axis of the tensioning roller (130).

3. A cutting compensation device for tobacco equipment aluminum foil paper, characterized by, The cutting compensation device further comprises an embossing roller assembly (200) and a cutting roller assembly (300), the embossing roller assembly (200) comprises an embossing roller group and an embossing roller group power part for driving the rotation of the embossing roller group, and the embossing roller group is used for embossing the aluminum foil (500) entering the embossing roller group; the cutting roller assembly (300) comprises a cutting roller (320) for cutting the aluminum foil (500) wound on the cutting roller (320); the tensioning roller (130) is located between the embossing roller group and the cutting roller (320), and the roller surface of the tensioning roller (130) abuts against the aluminum foil (500) for guiding the turning of the aluminum foil (500).

4. The cutting compensation device for tobacco equipment aluminum foil paper according to claim 3, characterized in that, The embossing roller group power part comprises an embossing drive motor, the tensioning roller power part (110) comprises a tensioning roller drive shaft connected with the eccentric shaft coupling (120), and a first transmission mechanism connecting the tensioning roller drive shaft and an output shaft of the embossing drive motor.

5. A cutting compensation device for tobacco equipment aluminum foil paper according to claim 4, characterized in that, The first transmission mechanism is a belt pulley set.

6. The cutting compensation device for tobacco equipment aluminum foil paper according to claim 3, characterized in that, Further comprising a transmission roller assembly (400), the transmission roller assembly (400) comprises a transmission roller (410) and a transmission roller power part (420), the transmission roller (410) is arranged between the tensioning roller (130) and the embossing roller group, and the transmission roller power part (420) comprises a second transmission mechanism, the second transmission mechanism is a driven gear (422) arranged on the transmission roller (410) and a driving gear (421) arranged on the embossing roller group power part.

7. A cutting compensation device for tobacco equipment aluminum foil paper according to claim 6, characterized in that, The tensioning roller power part (110) comprises a tensioning roller drive shaft and a third transmission mechanism connecting the tensioning roller drive shaft and the transmission roller (410).

8. A cutting compensation device for tobacco equipment aluminum foil paper according to claim 7, characterized in that, The third transmission mechanism is a belt pulley set.

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