Tobacco sheet splicing device

Abstract

The invention discloses a tobacco sheet splicing device which is characterized in that a rotary disc is mounted on a bottom plate, a first reel is rotatably mounted on the rotary disc to release old tobacco sheets, and a second reel is rotatably mounted on the rotary disc to release new tobacco sheets; the pre-tightening mechanism tensions the new tobacco leaf sheet, the shear mechanism shears the new tobacco leaf sheet, and the second reel rotates reversely to pull a paper head of the sheared new tobacco leaf sheet to the fixed beating plate mechanism; the fixed beating plate mechanism is installed on the bottom plate and used for fixing new tobacco sheets. The adhesive tape pasting mechanism rotates to paste one end of the adhesive tape to the paper head of the new tobacco leaf sheet; and the movable beating plate mechanism rotates to the fixed beating plate mechanism and is matched with the cutting mechanism to cut off the old tobacco leaf sheets, and the movable beating plate mechanism beats the paper heads of the cut old tobacco leaf sheets to the fixed beating plate mechanism so that the paper heads of the old tobacco leaf sheets can be bonded to the other end of the adhesive tape. According to the device, by means of a glue splicing mode, splicing of the tobacco sheets is achieved under the condition that equipment is not stopped, and the phenomena that the tobacco sheets are torn and bonded to the pressing rollers are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of tobacco leaf slice splicing, and in particular to a tobacco leaf slice splicing device. Background Art

[0002] In recent years, with the opening of the market, new tobacco products have experienced rapid development, the consumer base has continued to expand, and consumer habits are undergoing subtle changes. As a result, major tobacco industries have increased their research on new tobacco products to varying degrees, while also paying close attention to the operational stability of the cigarette equipment related to these products. The reliability of tobacco leaf splicing is a crucial factor affecting the operational stability of new tobacco rolling equipment.

[0003] Currently, there is no dedicated production equipment for electric heat-not-burn cigarettes in China. Most production equipment is repurposed from older forming equipment, resulting in outdated technology that cannot meet the needs of mass production. Tobacco sheeting is available in rolls, and like the rolling paper used in traditional cigarettes, this inevitably requires the integration of new and old rolls.

[0004] Current online tobacco sheet splicing technologies primarily utilize cached static splicing and high-speed glueless splicing. However, cached static splicing suffers from poor splicing reliability and a low success rate, making it impossible to guarantee continuous production. Furthermore, due to the lack of user-defined tobacco sheeting processes, the performance specifications of tobacco sheet reels are constantly evolving, with significant variations in performance indicators such as sheet strength and adhesion. High-speed glueless splicing cannot achieve specialized splicing requirements, potentially leading to sheet tearing and adhesion to the rollers. Summary of the Invention

[0005] The invention provides a tobacco leaf sheet splicing device to solve the technical problems of poor reliability and low splicing success rate of splicing devices in the prior art.

[0006] To achieve the above object, the technical solution provided by the present invention is as follows:

[0007] The present invention provides a tobacco leaf sheet splicing device, comprising a base plate, a rotary disk, a first reel, a second reel, a dynamic clapper mechanism, a cutting mechanism, a pre-tightening mechanism, a scissors mechanism, a fixed clapper mechanism and a gluing mechanism, wherein the rotary disk is mounted on the base plate, the first reel is rotatably mounted on the rotary disk to release old tobacco leaf sheets, and the second reel is rotatably mounted on the rotary disk to release new tobacco leaf sheets; the pre-tightening mechanism and the scissors mechanism are respectively mounted on the base plate, the pre-tightening mechanism tightens the new tobacco leaf sheets and the scissors mechanism cuts the new tobacco leaf sheets, and the second reel reverses to cut the new tobacco leaf sheets The paper head of the sheet is pulled to the fixed rapping plate mechanism; the fixed rapping plate mechanism is installed on the bottom plate to fix the new tobacco leaf sheet; the gluing mechanism is installed on the bottom plate, and the gluing mechanism rotates to stick one end of the tape to the paper head of the new tobacco leaf sheet; the dynamic rapping plate mechanism and the cutting mechanism are installed on the bottom plate, and the dynamic rapping plate mechanism rotates to the fixed rapping plate mechanism and cooperates with the cutting mechanism to cut off the old tobacco leaf sheet during the rotation process, and the dynamic rapping plate mechanism slaps the cut paper head of the old tobacco leaf sheet onto the fixed rapping plate mechanism to make the paper head of the old tobacco leaf sheet adhere to the other end of the tape.

[0008] Furthermore, the fixed clapper mechanism includes a first clapper and a first guide shaft, the first clapper is fixed to the base plate, the first guide shaft is fixed to the first clapper and is arranged along the length direction of the first clapper to guide the new tobacco leaf slices; a first adsorption hole is formed on the side of the first clapper facing the dynamic clapper mechanism to adsorb the new tobacco leaf slices; a through groove is also formed on the first clapper, and the through groove passes through the first clapper so that the glue sticking mechanism passes through the through groove to stick one end of the tape to the new tobacco leaf slices.

[0009] Furthermore, after cutting, the paper head of the new tobacco leaf sheet is located above the through slot so that the idle end of the tape is exposed from the through slot, and the dynamic clapping mechanism claps the paper head of the old tobacco leaf sheet to the idle end of the tape.

[0010] Furthermore, the fixed beater mechanism also includes a first drive unit, a pressure rod assembly and a first limiting member. The first drive unit is fixed on the first beater, and the output end of the first drive unit is connected to the pressure rod assembly to drive the pressure rod assembly to rotate so that the new tobacco leaf sheet is fixed between the first beater and the pressure rod assembly; the first limiting member is fixed on the first beater to limit the pressure rod assembly so that the pressure rod assembly covers part of the through groove.

[0011] Furthermore, the gluing mechanism includes a second driving unit, a first rotating unit and a gluing unit, the first rotating unit is installed on the base plate, the second driving unit drives the first rotating unit to rotate, the gluing unit is fixed on the first rotating unit, and the gluing unit rotates to stick one end of the tape to the new tobacco leaf sheet.

[0012] Furthermore, the first rotating unit includes a first rocker arm, a first rotating shaft and a first sleeve, the two ends of the first rotating shaft respectively fix the first rocker arm and the glue unit, and the output end of the second driving unit pushes the first rocker arm to swing so that the glue unit rotates; the first sleeve is mounted on the first rotating shaft and fixed to the base plate.

[0013] Furthermore, the scissor mechanism includes a mounting plate, a third drive unit, a support, a rotating shaft, and an upper scissor block and a lower scissor block. The mounting plate is fixed to the base plate, the third drive unit and the support are respectively mounted on the mounting plate, the upper scissor block is mounted on one end of the support, the rotating shaft is mounted on the other end of the support, and the lower scissor block is mounted on the rotating shaft; the output end of the third drive unit drives the rotating shaft to rotate so that the lower scissor block intersects with the upper scissor block to cut the new tobacco leaf slices.

[0014] Furthermore, the dynamic clapper mechanism includes a fourth driving unit, a second rotating unit and a dynamic clapper unit, the second rotating unit is installed on the base plate, the fourth driving unit drives the second rotating unit to rotate, the dynamic clapper unit is fixed on the second rotating unit, and the dynamic clapper unit absorbs the old tobacco leaf slices and cooperates with the cutting mechanism to cut off the old tobacco leaf slices.

[0015] Furthermore, the second rotating unit includes a second rocker arm, a second rotating shaft and a second sleeve. The two ends of the second rotating shaft are respectively fixed to the second rocker arm and the dynamic clapper unit. The output end of the fourth driving unit pushes the second rocker arm to swing so that the dynamic clapper unit rotates. The second sleeve is sleeved on the second rotating shaft and fixed to the base plate.

[0016] Furthermore, the dynamic clapper unit includes a second clapper and a first cutter, the second clapper is fixed on the second rotating unit, a knife groove is formed at the top of the second clapper, the first cutter is fixed in the knife groove and the top of the first cutter is higher than the knife groove; a second adsorption hole is formed on the side of the second clapper facing the fixed clapper mechanism to adsorb the old tobacco leaf slices.

[0017] Furthermore, the cutting mechanism includes a base, a fifth drive unit, a guide rail and a tool, the base is fixed on the bottom plate, the fifth drive unit and the guide rail are respectively fixed on the base, and the output end of the fifth drive unit is connected to the tool to push the tool to move along the guide rail.

[0018] Furthermore, the tobacco leaf sheet splicing device also includes a clamping mechanism, which includes a sixth drive unit, a fixed shaft, an eccentric shaft, a third rocker arm, a flange, a fixed block and a third sleeve. The fixed shaft is installed on the base plate, one end of the eccentric shaft is connected to the third rocker arm and installed on the flange, and the other end is installed on the fixed block. The third sleeve is sleeved on the eccentric shaft; the sixth drive unit is fixed on the base plate and its output end pushes the third rocker arm to swing so that the eccentric shaft rotates to control the distance between the third sleeve and the fixed shaft.

[0019] Furthermore, the tobacco leaf sheet splicing device also includes a paper guide roller mechanism, which includes a seventh drive unit and a paper guide roller. The seventh drive unit is fixed on the turntable, and the output end of the seventh drive unit pushes the paper guide roller to extend and tighten the old tobacco leaf sheet.

[0020] The tobacco leaf sheet splicing device provided by the present invention uses glue splicing to splice old and new tobacco leaf sheets without stopping the equipment. This prevents the tobacco leaf sheets from tearing or sticking to the pressing roller, and achieves a high splicing success rate. The device ensures splicing stability, has a compact structure, and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the structure of the tobacco leaf sheet splicing device in an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the central fixing plate mechanism;

[0025] Figure 4 for Figure 1Schematic diagram of the structure of the middle glue-applying mechanism;

[0026] Figure 5 for Figure 1 Schematic diagram of the structure of the scissor mechanism;

[0027] Figure 6 for Figure 1 Schematic diagram of the structure of the middle-moving clapper mechanism;

[0028] Figure 7 for Figure 1 Schematic diagram of the structure of the cutting mechanism;

[0029] Figure 8 for Figure 1 Schematic diagram of the structure of the clamping mechanism.

[0030] Reference numerals:

[0031] 1. Bottom plate; 2. Turntable; 3. First reel; 4. Second reel;

[0032] 100, dynamic clapper mechanism; 110, fourth drive unit; 121, second rocker; 122, second rotating shaft; 123, second sleeve; 131, second clapper; 132, first cutter;

[0033] 200, cutting mechanism; 210, base; 220, fifth drive unit; 230, guide rail; 240, cutter; 241, second cutter;

[0034] 300, pre-tightening mechanism;

[0035] 400, scissor mechanism; 410, mounting plate; 420, third drive unit; 430, support; 440, rotating shaft; 450, upper scissor block; 460, lower scissor block; 470, protective cover;

[0036] 500, fixed clapper mechanism; 510, first clapper; 511, first adsorption hole; 512, through slot; 520, first guide shaft; 530, first drive unit; 540, pressure rod assembly; 550, first position limiting member;

[0037] 600, glue-applying mechanism; 610, second drive unit; 621, first rocker; 622, first rotating shaft; 623, first sleeve; 630, glue-applying unit; 640, second stopper;

[0038] 700, clamping mechanism; 710, sixth drive unit; 720, fixed shaft; 730, eccentric shaft; 740, third rocker; 750, flange; 760, fixing block; 770, third sleeve;

[0039] 800. Paper guide roller mechanism. DETAILED DESCRIPTION

[0040] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0041] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 a limitation on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0044] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0045] like Figure 1 、 Figure 2As shown, an embodiment of the present application provides a tobacco leaf sheet splicing device, including a base plate 1, a turntable 2, a first reel 3, a second reel 4, a dynamic clapper mechanism 100, a cutting mechanism 200, a pre-tightening mechanism 300, a scissors mechanism 400, a fixed clapper mechanism 500 and a gluing mechanism 600. The turntable 2 is installed on the base plate 1, the first reel 3 is rotatably installed on the turntable 2 to release old tobacco leaf sheets, and the second reel 4 is rotatably installed on the turntable 2 to release new tobacco leaf sheets. The pre-tensioning mechanism 300 and the scissor mechanism 400 are respectively installed on the base plate 1. The pre-tensioning mechanism 300 tightens the new tobacco leaf slices and the scissor mechanism 400 cuts the new tobacco leaf slices. The second reel 4 reverses to pull the paper head of the cut new tobacco leaf slices to the fixed clapper mechanism 500; the fixed clapper mechanism 500 is installed on the base plate 1 for fixing the new tobacco leaf slices; the gluing mechanism 600 is installed on the base plate 1, and the gluing mechanism 600 rotates to stick one end of the tape to the paper head of the new tobacco leaf slices; the dynamic clapper mechanism 100 and the cutting mechanism 200 are installed on the base plate 1, and the dynamic clapper mechanism 100 rotates to the fixed clapper mechanism 500 and cooperates with the cutting mechanism 200 to cut off the old tobacco leaf slices during the rotation process. The dynamic clapper mechanism 100 slaps the paper head of the cut old tobacco leaf slices onto the fixed clapper mechanism 500 so that the paper head of the old tobacco leaf slices is bonded to the other end of the tape.

[0046] In the embodiment of the present application, the first reel 3 is equipped with old tobacco leaf sheets, and the second reel 4 is equipped with new tobacco leaf sheets. The first reel 3 and the second reel 4 are respectively installed on the rotary disc 2. The winding direction of the old tobacco leaf sheets and the new tobacco leaf sheets is as follows: Figure 2 .

[0047] Figure 2 The new tobacco leaf flakes are wound from the second reel 4 through the fixed plate mechanism 500 and then to the pre-tensioning mechanism 300. The new tobacco leaf flakes are in a tensioned state under the action of the pre-tensioning mechanism 300. The scissor mechanism 400 is located between the pre-tensioning mechanism 300 and the fixed plate mechanism 500, and it cuts the tensioned new tobacco leaf flakes. After cutting, the paper end of the new tobacco leaf flakes is pulled back to the predetermined position on the fixed plate mechanism 500 by the reverse action of the second reel 4 and fixed to the fixed plate mechanism 500 to prevent the new tobacco leaf flakes from slipping during splicing. The gluing mechanism 600 rotates to the fixed plate and adheres one end of the tape to the new tobacco leaf flakes.

[0048] The old tobacco leaf flakes are wound from the first reel 3 through the dynamic clapper mechanism 100 and then onto other rollers. When the old and new tobacco leaf flakes are joined, the first reel 3 brakes. The dynamic clapper mechanism 100 secures the old tobacco leaf flakes and rotates to clasp them onto the fixed clapper mechanism 500. As the dynamic clapper mechanism 100 rotates, it cooperates with the cutting mechanism 200 to shear the old tobacco leaf flakes. The dynamic clapper mechanism 100 continues to rotate, clapping the remaining paper of the old tobacco leaf flakes onto the fixed clapper mechanism 500, bonding the remaining paper of the old tobacco leaf flakes to the other end of the tape. The dynamic clapper mechanism 100 rotates back, completing the splicing of the old and new tobacco leaf flakes.

[0049] The tobacco leaf sheet splicing device provided in the embodiments of the present application uses glue splicing to splice old and new tobacco leaf sheets without stopping the equipment, preventing the tobacco leaf sheets from tearing or sticking to the pressing roller, and achieving a high splicing success rate. The tobacco leaf sheet splicing device ensures splicing stability, has a compact structure, and is easy to maintain.

[0050] In some embodiments, the fixed clapper mechanism 500 includes a first clapper 510 and a first guide shaft 520. The first clapper 510 is fixed on the base plate 1. The first guide shaft 520 is fixed on the first clapper 510 and is arranged along the length direction of the first clapper 510 to guide the new tobacco leaf slices. A first adsorption hole 511 is formed on the side of the first clapper 510 facing the dynamic clapper mechanism 100 to adsorb the new tobacco leaf slices. A through groove 512 is also formed on the first clapper 510. The through groove 512 passes through the first clapper 510 so that the glue sticking mechanism 600 passes through the through groove 512 to stick one end of the tape on the new tobacco leaf slices.

[0051] In the embodiment of the present application, the first clapper 510 and the first guide shaft 520 are arranged in the same direction, and the first guide shaft 520 guides the new tobacco leaf slices, that is, the new tobacco leaf slices are adsorbed on the side of the first clapper 510 facing the dynamic clapper mechanism 100 after passing through the first guide shaft 520. Figure 3 The first clapper 510 secures the new tobacco leaf sheet by applying negative pressure to it through the first suction holes 511 on its side. The through slot 512 extends perpendicular to the paper tape of the new tobacco leaf sheet. The position of the cut end of the new tobacco leaf sheet corresponds to the position of the through slot 512, that is, the end of the paper is located above the through slot 512. The adhesive mechanism 600 can pass through the through slot 512 and contact the new tobacco leaf sheet, thereby affixing one end of the adhesive tape to the new tobacco leaf sheet.

[0052] In addition, the fixed plate mechanism 500 also includes a limit block, which is fixed to the end of the first guide shaft 520 by a set screw to limit the new tobacco leaf slices to prevent them from sliding out of the fixed plate mechanism 500.

[0053] Furthermore, after being cut, the paper head of the new tobacco leaf sheet is located above the through slot 512 so that the idle end of the tape is exposed from the through slot 512, and the dynamic clapping mechanism 100 claps the paper head of the old tobacco leaf sheet to the idle end of the tape.

[0054] In the embodiment of the present application, the paper head of the new tobacco leaf sheet cannot completely cover the through groove 512, but should only cover part of the through groove 512, so that the idle end of the tape is exposed to the outside, making it easier for the dynamic clapping mechanism 100 to slap the paper head of the old tobacco leaf sheet onto the exposed tape.

[0055] Specifically, the fixed beater mechanism 500 also includes a first driving unit 530, a pressure rod assembly 540 and a first limiting member 550. The first driving unit 530 is fixed on the first beater 510. The output end of the first driving unit 530 is connected to the pressure rod assembly 540 to drive the pressure rod assembly 540 to rotate so that the new tobacco leaf slices are fixed between the first beater 510 and the pressure rod assembly 540; the first limiting member 550 is fixed on the first beater 510 to limit the pressure rod assembly 540 so that the pressure rod assembly 540 covers part of the through groove 512.

[0056] In the present application, refer to Figure 3 The first drive unit 530 can be a rotary cylinder assembly. The rotary cylinder assembly is connected to the first clapper 510 via screws and washers, and its output shaft is screwed to the pressure rod assembly 540. When the rotary cylinder assembly is ventilated, it drives the output shaft to rotate, thereby driving the pressure rod assembly 540 downward to secure the new tobacco leaf sheet. The pressure rod assembly 540 secures the new tobacco leaf sheet and the first clapper 510 adsorbs the new tobacco leaf sheet, securing the paper head of the new tobacco leaf sheet between the first clapper 510 and the pressure rod assembly 540. This facilitates the application of the adhesive tape to the paper head by the adhesive tape application mechanism 600.

[0057] In addition, a first stopper 550 is provided on the first clapper 510 to limit the position of the pressure rod assembly 540 so that the pressure rod assembly 540 presses the paper head of the new tobacco leaf sheet to avoid slipping when contacting the gluing mechanism 600. The first stopper 550 can be rod-shaped, block-shaped, or can be Figure 3 The hook shape in the middle can limit the downward movement of the pressure rod assembly 540. Through the limitation of the first limiting member 550, the pressure rod assembly 540 covers or blocks part of the through slot 512, but cannot cover or block it completely, so that the dynamic clapper mechanism 100 can slap the paper end of the old tobacco leaf sheet on the other end of the tape.

[0058] In some embodiments, the gluing mechanism 600 includes a second driving unit 610, a first rotating unit and a gluing unit 630. The first rotating unit is installed on the base plate 1. The second driving unit 610 drives the first rotating unit to rotate. The gluing unit 630 is fixed on the first rotating unit. The gluing unit 630 rotates to stick one end of the tape to the new tobacco leaf sheet.

[0059] In the embodiment of the present application, the second driving unit 610 can be a cylinder assembly, the output end of which can drive the first rotating unit to rotate, and the gluing unit 630 fixed to the first rotating unit rotates with it, so that the gluing unit 630 rotates to the through slot 512 of the first clapper 510 of the fixed clapper mechanism 500, and the gluing unit 630 passes through the through slot 512 and sticks the adhesive tape on it to the paper head of the cut new tobacco leaf sheet. Figure 4 The gluing unit 630 is flipped from the horizontal position to the upper left by the action of the cylinder, and one end of the tape is attached to the paper end of the new tobacco leaf sheet. The above structure is simple in design and stable and reliable.

[0060] As can be understood, the adhesive unit 630 is a suction block with suction holes for sucking the tape. A pipeline supplies negative pressure. When not sucking the tape, the pipeline switches to positive pressure to clean the suction holes. The positive and negative pressures in the pipeline are controlled by a single solenoid valve.

[0061] Furthermore, the first rotating unit includes a first rocker arm 621, a first rotating shaft 622440 and a first shaft sleeve 623. The two ends of the first rotating shaft 622440 respectively fix the first rocker arm 621 and the glue unit 630. The output end of the second driving unit 610 pushes the first rocker arm 621 to swing so that the glue unit 630 rotates; the first shaft sleeve 623 is sleeved on the first rotating shaft 622440 and fixed on the base plate 1.

[0062] In the embodiment of the present application, driven by the output end of the second drive unit 610, the first swing arm 621 drives the first gluing unit 630 to rotate, causing the gluing unit 630 to flip from a horizontal position to the upper left, attaching one end of the tape to the paper tip of the new tobacco leaf sheet. Furthermore, the gluing mechanism 600 also includes a second limiter 640, which is fixed to the base plate 1. The first swing arm 621 rotates to abut against the second limiter 640. In other words, the second limiter 640 limits the rotation angle of the first swing arm 621. When the gluing unit 630 moves into the through slot 512 and contacts the new tobacco leaf sheet to complete the gluing, the second limiter 640 restricts the gluing unit 630 from continuing to rotate.

[0063] In some embodiments, the scissor mechanism 400 includes a mounting plate 410, a third drive unit 420, a support 430, a rotating shaft 440, an upper scissor block 450, and a lower scissor block 460. The mounting plate 410 is fixed to the base plate 1, the third drive unit 420 and the support 430 are respectively mounted on the mounting plate 410, the upper scissor block 450 is mounted on one end of the support 430, the rotating shaft 440 is mounted on the other end of the support 430, and the lower scissor block 460 is mounted on the rotating shaft 440; the output end of the third drive unit 420 drives the rotating shaft 440 to rotate so that the lower scissor block 460 intersects with the upper scissor block 450 to cut the new tobacco leaf slices.

[0064] In an embodiment of the present application, the scissor mechanism 400 is arranged below the glue-applying mechanism 600, and is located between the pre-tightening mechanism 300 and the fixed plate mechanism 500. The third drive unit 420 can be a cylinder assembly, which is fixed to the mounting plate 410 by screws. One end of the support 430 is also fixed to the mounting plate 410. The upper scissor block 450 is fixed to the end of the support 430 away from the mounting plate 410, and can be connected by a screw and nut. The rotating shaft 440 is mounted on the support 430 by bearings, screws and washers. The rotating shaft 440 is closer to the mounting plate 410 than the upper scissor block 450. The lower scissor block 460 is mounted on the rotating shaft 440. The scissor mechanism 400 also includes a protective cover 470, which is arranged on the outside of the upper scissor block 450 and the lower scissor block 460 to protect them.

[0065] Reference Figure 5 After the scissor mechanism 400 detects the presence of a new tobacco leaf, the output of the third drive unit 420 rotates the shaft 440, causing the lower scissor block 460 mounted on the shaft 440 to rotate until it intersects with the upper scissor block 450, thereby shearing the new tobacco leaf. By controlling the rotation of the second reel 4 on the turntable 2, the cut end of the new tobacco leaf is pulled to the fixed plate mechanism 500 and fixed by suction to the first plate 510.

[0066] In an embodiment of the present application, before the scissor mechanism 400 cuts the new tobacco leaf slices, the pre-tensioning mechanism 300 receives the signal of loading the second reel 4, and extends the pre-tensioning mechanism 300 through cylinder control. It rotates and wraps around the new tobacco leaf slices, keeping the new tobacco leaf slices in a tensioned state so that the scissor mechanism 400 can cut them.

[0067] In some embodiments, the dynamic clapper mechanism 100 includes a fourth drive unit 110, a second rotating unit and a dynamic clapper unit. The second rotating unit is installed on the base plate 1. The fourth drive unit 110 drives the second rotating unit to rotate. The dynamic clapper unit is fixed on the second rotating unit. The dynamic clapper unit absorbs the old tobacco leaf slices and cooperates with the cutting mechanism 200 to cut off the old tobacco leaf slices.

[0068] In the embodiment of the present application, the fourth driving unit 110 can be a cylinder assembly, the output end of which drives the second rotating unit to rotate, and the dynamic clapper unit fixed to the second rotating unit rotates together, so that the dynamic clapper unit with the old tobacco leaf slices adsorbed thereon is close to the first clapper 510 of the fixed clapper mechanism 500. During the rotation of the dynamic clapper unit, it cooperates with the cutting mechanism 200 to cut the old tobacco leaf slices and claps the paper ends of the old tobacco leaf slices onto the first clapper 510 of the fixed clapper mechanism 500, referring to Figure 1 、 Figure 2 and Figure 6 .

[0069] In some embodiments, the second rotating unit includes a second rocker arm 121, a second rotating shaft 440122 and a second shaft sleeve 123. The two ends of the second rotating shaft 440122 are respectively fixed to the second rocker arm 121 and the dynamic clapper unit. The output end of the fourth driving unit 110 pushes the second rocker arm 121 to swing so that the dynamic clapper unit rotates. The second shaft sleeve 123 is sleeved on the second rotating shaft 440122 and fixed on the base plate 1.

[0070] Reference Figure 6 The second swing arm 121 and the dynamic clapper unit are respectively fixed to the ends of the second rotating shaft 440122. When the output end of the fourth driving unit 110 drives the second swing arm 121 to swing, the dynamic clapper unit rotates with it, so that the dynamic clapper unit claps the paper ends of the used tobacco leaves onto the first clapper 510 of the fixed clapper mechanism 500. The above structural design is simple, stable and reliable.

[0071] In some embodiments, the dynamic clapper unit includes a second clapper 131 and a first cutter 132. The second clapper 131 is fixed on the second rotating unit. A knife groove is formed at the top of the second clapper 131. The first cutter 132 is fixed in the knife groove and the top of the first cutter 132 is higher than the knife groove. A second adsorption hole is formed on the side of the second clapper 131 facing the fixed clapper mechanism 500 to adsorb old tobacco leaf slices.

[0072] In the present application, refer to Figure 6 The second clapper 131 is formed with a second suction hole, which is located on the side of the second clapper 131 facing the fixed clapper mechanism 500. That is, the old tobacco leaf slices are attracted to the side of the second clapper 131 facing the fixed clapper mechanism 500, so that the second clapper 131 can slap the old tobacco leaf slices onto the first clapper 510 of the fixed clapper mechanism 500. The second clapper 131 is fixed to the second rotating shaft 440122 and can rotate with the rotating shaft 440. A knife groove is provided at the top of the second clapper 131, and the first cutter 132 is installed in the knife groove with its top protruding from the knife groove. In this case, when the second clapper 131 contacts the cutting mechanism 200, the first cutter 132 intersects with the blade 240 of the cutting mechanism 200 to cut the old tobacco leaf slices.

[0073] Reference Figure 1 Figure 2 and Figure 6 The second suction hole on the second clapper 131 uses negative pressure to hold the old tobacco sheet in place. The second clapper 131 then slaps to the right. During its rotation, the first cutter 132 on the second clapper 131 cooperates with the cutting mechanism 200 to shear the old tobacco sheet. The second clapper 131 then continues to rotate and slaps onto the first clapper 510. Its slapping position is below the pressure bar assembly 540, where it does not interfere with the pressure bar assembly 540. The paper end of the old tobacco sheet adheres to the exposed tape in the through slot 512 on the first clapper 510, completing the splicing of the new and old tobacco sheets.

[0074] In some embodiments, the cutting mechanism 200 includes a base 210, a fifth drive unit 220, a guide rail 230 and a tool 240. The base 210 is fixed on the base plate 1, the fifth drive unit 220 and the guide rail 230 are respectively fixed on the base 210, and the output end of the fifth drive unit 220 is connected to the tool 240 to push the tool 240 to move along the guide rail 230.

[0075] Reference Figure 7 The fifth drive unit 220 can be a cylinder assembly mounted on the base 210. A guide rail 230 is also mounted on the base 210, along which the cutter 240 can move. The output end of the cylinder assembly propels the cutter 240 along the guide rail 230. Upon receiving the splicing signal, the cutting mechanism 200 extends the cylinder assembly, where it intersects with the edge of the first cutter 132 on the second clapper 131, severing the old tobacco leaf sheet. After the new and old tobacco leaf sheets are spliced, the cutter 240 of the cutting mechanism 200 retracts.

[0076] from Figure 7 As can be seen, the cutter 240 comprises a slider, a blade shaft mounted on the slider, and a second cutter 241 fixed to the blade shaft. The slider is propelled by the output end of the cylinder assembly to move along the guide rail 230, thereby driving the blade shaft and the second cutter 241 to intersect with the cutting edge of the first cutter 132 mounted on the second clapper 131 to cut the used tobacco leaves.

[0077] In some embodiments, the tobacco leaf sheet splicing device also includes a clamping mechanism 700, which includes a sixth drive unit 710, a fixed shaft 720, an eccentric shaft 730, a third rocker arm 740, a flange 750, a fixed block 760 and a third sleeve 770. The fixed shaft 720 is installed on the base plate 1, one end of the eccentric shaft 730 is connected to the third rocker arm 740 and installed on the flange 750, and the other end is installed on the fixed block 760, and the third sleeve 770 is sleeved on the eccentric shaft 730; the sixth drive unit 710 is fixed on the base plate 1 and its output end pushes the third rocker arm 740 to swing so that the eccentric shaft 730 rotates to control the distance between the third sleeve 770 and the fixed shaft 720.

[0078] Reference Figure 8 In this embodiment, one end of the fixed shaft 720 is screwed to the base plate 1, and the other end is fixed to the fixed block 760 via screws and washers. The eccentric shaft 730 is mounted on the flange 750 via a bearing and a retaining ring. The third rocker arm 740 is connected to the eccentric shaft 730 and secured with screws. The third sleeve 770 is mounted on the eccentric shaft 730, with its outer end fixed to the fixed block 760.

[0079] In this embodiment of the present application, the sixth drive unit 710 may be a cylinder assembly, whose output end drives the third rocker arm 740 to rotate, causing the eccentric shaft 730 to rotate with it. This changes the distance between the third sleeve 770 mounted on the eccentric shaft 730 and the fixed shaft 720, thereby clamping and loosening the old tobacco leaf sheet. The cylinder assembly controls the rotation of the eccentric shaft 730, clamping the old tobacco leaf sheet during splicing, preventing it from moving and ensuring the stability of the splice.

[0080] Furthermore, the tobacco leaf sheet splicing device also includes a paper guide roller mechanism 800, which includes a seventh drive unit and a paper guide roller. The seventh drive unit is fixed to the turntable 2, and the output end of the seventh drive unit pushes the paper guide roller to extend and tighten the old tobacco leaf sheet. In the embodiment of the present application, the paper guide roller is connected to the output end of the seventh drive unit. The seventh drive unit can be a cylinder assembly. Before the new and old tobacco leaf sheets are spliced ​​together, the output end of the cylinder assembly pushes the paper guide roller to extend, thereby putting the old tobacco leaf sheet in a tensioned state, making it easier for it to be fixed on the second clapper 131 of the dynamic clapper mechanism 100, and the position will not be offset.

[0081] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tobacco leaf sheet splicing device, characterized by: The utility model comprises a bottom plate, a rotating disk, a first reel, a second reel, a dynamic clapper mechanism, a cutting mechanism, a pre-tightening mechanism, a scissors mechanism, a fixed clapper mechanism and a gluing mechanism. The rotating disk is mounted on the bottom plate. The first reel is rotatably mounted on the rotating disk to release old tobacco leaf slices. The second reel is rotatably mounted on the rotating disk to release new tobacco leaf slices. The pre-tightening mechanism and the scissor mechanism are respectively installed on the bottom plate, the pre-tightening mechanism tightens the new tobacco leaf slices and the scissor mechanism cuts the new tobacco leaf slices, and the second reel reverses to pull the cut paper ends of the new tobacco leaf slices to the fixed plate mechanism; the fixed plate mechanism is installed on the bottom plate to fix the new tobacco leaf slices; the gluing mechanism is installed on the bottom plate, and the gluing mechanism rotates to stick one end of the tape to the paper ends of the new tobacco leaf slices; The dynamic clapper mechanism and the cutting mechanism are installed on the bottom plate. The dynamic clapper mechanism rotates to the fixed clapper mechanism and cooperates with the cutting mechanism to cut the old tobacco leaf slices during the rotation process. The dynamic clapper mechanism slaps the paper head of the cut old tobacco leaf slices onto the fixed clapper mechanism so that the paper head of the old tobacco leaf slices is bonded to the other end of the tape.

2. The tobacco leaf sheet splicing device according to claim 1, characterized in that: The fixed clapper mechanism includes a first clapper and a first guide shaft, the first clapper is fixed to the bottom plate, the first guide shaft is fixed to the first clapper and is arranged along the length direction of the first clapper to guide the new tobacco leaf slices; a first adsorption hole is formed on the side of the first clapper facing the dynamic clapper mechanism to adsorb the new tobacco leaf slices; a through groove is also formed on the first clapper, and the through groove passes through the first clapper so that the glue-applying mechanism passes through the through groove to stick one end of the tape to the new tobacco leaf slices.

3. The tobacco leaf sheet splicing device according to claim 2, characterized in that: After cutting, the paper head of the new tobacco leaf sheet is located above the through slot so that the idle end of the tape is exposed from the through slot, and the dynamic clapping mechanism claps the paper head of the old tobacco leaf sheet to the idle end of the tape.

4. The tobacco leaf sheet splicing device according to claim 2, characterized in that: The fixed beater mechanism also includes a first drive unit, a pressure rod assembly and a first limiting member. The first drive unit is fixed on the first beater, and the output end of the first drive unit is connected to the pressure rod assembly to drive the pressure rod assembly to rotate so that the new tobacco leaf sheet is fixed between the first beater and the pressure rod assembly; the first limiting member is fixed on the first beater to limit the pressure rod assembly so that the pressure rod assembly covers part of the through groove.

5. The tobacco leaf sheet splicing device according to any one of claims 1 to 4, characterized in that: The gluing mechanism includes a second driving unit, a first rotating unit and a gluing unit. The first rotating unit is installed on the base plate, the second driving unit drives the first rotating unit to rotate, and the gluing unit is fixed on the first rotating unit. The gluing unit rotates to stick one end of the tape on the new tobacco leaf sheet.

6. The tobacco leaf sheet splicing device according to claim 5, characterized in that: The first rotating unit includes a first rocker arm, a first rotating shaft and a first sleeve. The two ends of the first rotating shaft respectively fix the first rocker arm and the glue unit. The output end of the second driving unit pushes the first rocker arm to swing so that the glue unit rotates; the first sleeve is sleeved on the first rotating shaft and fixed to the base plate.

7. The tobacco leaf sheet splicing device according to any one of claims 1 to 4, characterized in that: The scissor mechanism includes a mounting plate, a third drive unit, a support, a rotating shaft, an upper scissor block, and a lower scissor block. The mounting plate is fixed to the base plate, the third drive unit and the support are respectively mounted on the mounting plate, the upper scissor block is mounted on one end of the support, the rotating shaft is mounted on the other end of the support, and the lower scissor block is mounted on the rotating shaft; the output end of the third drive unit drives the rotating shaft to rotate so that the lower scissor block intersects with the upper scissor block to cut the new tobacco leaf slices.

8. The tobacco leaf sheet splicing device according to any one of claims 1 to 4, characterized in that: The dynamic clapper mechanism includes a fourth driving unit, a second rotating unit and a dynamic clapper unit. The second rotating unit is installed on the base plate. The fourth driving unit drives the second rotating unit to rotate. The dynamic clapper unit is fixed on the second rotating unit. The dynamic clapper unit absorbs the old tobacco leaf slices and cooperates with the cutting mechanism to cut off the old tobacco leaf slices.

9. The tobacco leaf sheet splicing device according to claim 8, characterized in that: The second rotating unit includes a second rocker arm, a second rotating shaft and a second sleeve. The two ends of the second rotating shaft are respectively fixed to the second rocker arm and the dynamic clapper unit. The output end of the fourth driving unit pushes the second rocker arm to swing so that the dynamic clapper unit rotates. The second sleeve is sleeved on the second rotating shaft and fixed to the base plate.

10. The tobacco leaf sheet splicing device according to claim 8, characterized in that: The dynamic clapper unit includes a second clapper and a first cutter. The second clapper is fixed on the second rotating unit. A knife groove is formed on the top of the second clapper. The first cutter is fixed in the knife groove and the top of the first cutter is higher than the knife groove. A second adsorption hole is formed on the side of the second clapper facing the fixed clapper mechanism to adsorb the old tobacco leaf slices.

11. The tobacco leaf sheet splicing device according to any one of claims 1 to 4, characterized in that: The cutting mechanism includes a base, a fifth drive unit, a guide rail and a tool. The base is fixed on the bottom plate, the fifth drive unit and the guide rail are respectively fixed on the base, and the output end of the fifth drive unit is connected to the tool to push the tool to move along the guide rail.

12. The tobacco leaf sheet splicing device according to any one of claims 1 to 4, characterized in that: The tobacco leaf sheet splicing device also includes a clamping mechanism, which includes a sixth drive unit, a fixed shaft, an eccentric shaft, a third rocker arm, a flange, a fixed block and a third sleeve. The fixed shaft is installed on the base plate, one end of the eccentric shaft is connected to the third rocker arm and installed on the flange, and the other end is installed on the fixed block. The third sleeve is sleeved on the eccentric shaft; the sixth drive unit is fixed on the base plate and its output end pushes the third rocker arm to swing so that the eccentric shaft rotates to control the distance between the third sleeve and the fixed shaft.

13. The tobacco leaf sheet splicing device according to any one of claims 1 to 4, characterized in that: The tobacco leaf sheet splicing device also includes a paper guide roller mechanism, which includes a seventh drive unit and a paper guide roller. The seventh drive unit is fixed on the turntable, and the output end of the seventh drive unit pushes the paper guide roller to extend and tighten the old tobacco leaf sheet.

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