Glue supply device and cigarette making machine

Abstract

The invention discloses a glue supply device, comprising: a glue cylinder, the bottom of which is provided with a glue outlet, and the glue cylinder is internally provided with a glue extrusion plate in a sliding manner; the bracket is arranged on the rubber barrel; the inner ratchet wheel is rotationally arranged on the support, the inner ratchet wheel comprises a center hole, and ratchets are arranged in the circumferential direction of the center hole; the driving wheel is rotationally arranged on the support, the driving wheel is located in the center hole, a pawl is arranged on the driving wheel, and the pawl is used for being clamped with the ratchets; the driving mechanism is arranged on the support and connected with the driving wheel, and the driving mechanism is used for driving the driving wheel to rotate in the forward direction or the reverse direction at a set angle; the transmission mechanism is connected with the inner ratchet wheel and the glue extrusion plate, so that when the driving wheel rotates in the forward direction or the reverse direction at a set angle, the transmission mechanism can drive the glue extrusion plate to intermittently slide in the first direction; wherein the first direction is the axial direction of the rubber sleeve. The glue supply device can continuously and quantitatively supply glue at intervals. The invention further provides a cigarette making machine which comprises the glue supply device.

Description

Technical Field

[0001] The present invention relates to the field of cigarette production devices, and in particular to a glue supply device and a cigarette making machine. Background Art

[0002] A crucial step in the cigarette production process is tightly wrapping tobacco with cigarette paper. The two edges of the cigarette paper need to be butted together to form the final cylindrical shape. This joint requires glue, and cigarette rolling equipment is typically equipped with a corresponding glue supply device to manage this glue. During high-speed production, controlling the glue supply is a key concern. Excessive glue supply leads to waste and increased production costs, while insufficient glue supply compromises the adhesive quality of the cigarette paper. Therefore, ensuring consistent glue output for varying production needs is paramount for the glue supply device.

[0003] The current glue supply device of the cigarette making machine, such as the Chinese patent with patent number CN113738972A, discloses a glue supply device of the cigarette making machine and a cigarette making machine, the glue supply device includes a glue barrel, a docking part installed at the barrel mouth of the glue barrel, the docking part includes a first valve chamber connected to the inner cavity of the glue barrel, a first valve port connected to the first valve chamber, a first valve core movably arranged in the first valve chamber, and a first pressing component; and a mounting seat, including a docking chamber adapted to an end of the docking part away from the glue barrel, a second valve chamber connected to the docking chamber, a second valve port connected to the second valve chamber, a second valve core arranged in the second valve chamber, a second elastic component, a second pressing component connected to the side of the second valve core close to the docking chamber, and an outlet connected to the second valve chamber. When the operator installs the glue bucket on the mounting base, the outer end of the docking portion is inserted into the corresponding docking cavity. The first pressing member presses the second pressing member to open the first and second valve ports, allowing the glue bucket outlet to communicate with the second valve cavity of the mounting base. The glue in the glue bucket flows through the first and second valve cavities to the outlet of the mounting base. This glue supply device is difficult to achieve a satisfactory quantitative glue supply effect. Summary of the Invention

[0004] The present invention aims to solve the technical problem that the glue supply device of the current cigarette making machine is difficult to achieve satisfactory quantitative glue supply. The present invention provides a glue supply device that can continuously and quantitatively control the glue output to meet the quantitative glue supply requirements of the cigarette making machine.

[0005] To solve the above technical problems, an embodiment of the present invention discloses a glue supply device, comprising:

[0006] The rubber cylinder has a rubber outlet at its bottom and a glue extrusion plate slidingly arranged inside the rubber cylinder;

[0007] A bracket is provided on the rubber cylinder;

[0008] An inner ratchet is rotatably mounted on the bracket, the inner ratchet comprising a central hole and ratchet teeth arranged along the circumference of the central hole;

[0009] A driving wheel is rotatably mounted on the bracket and is located in the center hole. A pawl is provided on the driving wheel and is used to engage with the ratchet teeth.

[0010] A driving mechanism is provided on the bracket and connected to the driving wheel, and the driving mechanism is used to drive the driving wheel to rotate in a forward or reverse direction at a set angle;

[0011] A transmission mechanism is connected to the inner ratchet and the glue extrusion plate, respectively, so that when the driving wheel rotates in a forward or reverse direction at a set angle, the transmission mechanism can drive the glue extrusion plate to intermittently slide in the first direction;

[0012] The first direction is the axial direction of the rubber cylinder.

[0013] With this technical solution, the drive mechanism drives the drive wheel to rotate forward or reverse at a set angle. The internal ratchet and transmission mechanism drive the glue extrusion plate to move a specific distance, squeezing the glue out of the glue outlet, achieving a constant supply of glue. Furthermore, the drive wheel and the internal ratchet are connected by a pawl and ratchet teeth. When the drive wheel rotates in either the forward or reverse direction, the drive wheel and the internal ratchet disengage, allowing the glue extrusion plate to stop while the drive wheel rotates in that direction. This allows for a continuous, intermittent supply of glue.

[0014] As a specific embodiment, a first positioning pin hole is provided on the pawl, and a second positioning pin hole is provided on the driving wheel; when the pawl rotates until the first positioning pin coincides with the second positioning pin, the pawl is disengaged from the ratchet tooth.

[0015] As a specific implementation, it also includes:

[0016] A first rack is slidably connected to the bracket, a driving mechanism is connected to the first rack, and the driving mechanism is capable of driving the first rack to reciprocate between a first position and a second position along a first direction;

[0017] The first transmission gear is meshed with the first rack and is coaxially connected to the drive wheel so that when the first rack reciprocates between the first position and the second position along the first direction, it can drive the drive wheel to rotate in the forward or reverse direction by a set angle.

[0018] As a specific embodiment, the transmission mechanism includes:

[0019] The second rack is slidably connected to the bracket, and the second rack is connected to the glue extrusion plate;

[0020] A second transmission gear is coaxially connected to the inner ratchet, and the second transmission gear is meshed with the second rack;

[0021] The inner ratchet is configured such that, when the first rack moves from the first position to the second position, the driving wheel rotates forward by a set angle, and the pawl engages with the ratchet teeth to drive the inner ratchet to rotate, so that the glue squeezing plate moves in the first direction to squeeze the glue to the glue outlet; when the first rack moves from the second position to the first position, the driving wheel rotates backward by a set angle, the pawl disengages from the ratchet teeth, and the inner ratchet is disconnected from the driving wheel, so that the second rack and the glue squeezing plate remain stationary.

[0022] As a specific embodiment, the driving mechanism includes:

[0023] A driving disk is rotatably mounted on the bracket;

[0024] The transmission top block is arranged at intervals on the lower end surface of the driving disk along the circumferential direction of the driving disk; along the first direction, the first rack elastically abuts against the transmission top block, so that when the driving disk rotates, the transmission top block drives the first rack to move from the first position to the second position; or when the transmission top block is out of contact with the first rack, the first rack moves from the second position to the first position.

[0025] As a specific implementation, it also includes:

[0026] A guide rail is provided on the bracket, and the first rack is slidably connected to the guide rail;

[0027] An elastic member is arranged in the guide rail, one end of the elastic member is in contact with the first rack, and the elastic member is used to apply a force to the first rack along the first direction toward the driving disk so that when the transmission top block disengages from the first rack, the first rack moves from the second position to the first position along the first direction.

[0028] As a specific embodiment, it further includes a transmission push rod, wherein the lower end of the transmission push rod is adjustably connected to the end of the first rack along the first direction, and the upper end of the transmission push rod abuts against the transmission top block.

[0029] As a specific implementation, the transmission top block is detachably connected to the driving disc.

[0030] As a specific implementation, it also includes:

[0031] The trigger rods are arranged on the upper end surface of the driving disk at intervals along the circumferential direction;

[0032] The warning bell is arranged at the top end of the second rack, and the warning bell is configured so that when the glue extrusion plate moves to the bottom of the glue cylinder, the warning bell contacts the trigger rod.

[0033] As a specific implementation, it also includes:

[0034] A guide rod is connected to the glue extrusion plate, and in a first direction, the guide rod is slidably connected to the bracket;

[0035] The anti-rebound mechanism is provided on the bracket and includes:

[0036] a first rotating shaft rotatably connected to the bracket, the first rotating shaft comprising a first eccentric shaft segment, the axis of the first eccentric shaft segment being eccentrically arranged relative to the rotation axis of the first rotating shaft;

[0037] a first friction wheel rotatably disposed on the first eccentric shaft segment, the first friction wheel being configured to frictionally contact the guide rod when the glue extrusion plate moves downward in the first direction;

[0038] a first one-way bearing, used to connect the first friction wheel and the first eccentric shaft segment; the first one-way bearing is configured to only allow the first friction wheel to rotate in a positive direction relative to the first rotating shaft;

[0039] The first locking member is used to limit the rotation of the first rotating shaft.

[0040] As a specific implementation, it also includes:

[0041] A guide rod is connected to the glue extrusion plate, and in a first direction, the guide rod is slidably connected to the bracket;

[0042] The anti-drop mechanism is provided on the bracket and includes:

[0043] a second rotating shaft rotatably connected to the bracket, the second rotating shaft including a second eccentric shaft segment, the axis of the second eccentric shaft segment being eccentrically arranged relative to the rotation axis of the second rotating shaft;

[0044] a second friction wheel rotatably disposed on the second eccentric shaft segment, the second friction wheel being used for frictionally contacting the guide rod when the glue extrusion plate is located at the top of the glue cylinder;

[0045] a second one-way bearing, for connecting the second friction wheel and the second eccentric shaft segment; the second one-way bearing is configured to only allow the second friction wheel to rotate in a positive direction relative to the second rotating shaft;

[0046] The second locking member is used to limit the rotation of the second rotating shaft.

[0047] As a specific implementation, it also includes:

[0048] A transmission shaft, the upper end of which is in transmission connection with the driving mechanism so that the driving mechanism drives the transmission shaft to rotate;

[0049] A rotating roller is rotatably arranged on the outer side of the glue outlet and is transmission-connected to the lower end of the transmission shaft;

[0050] The cleaning plate is connected to the rotating roller, and the end surface of the cleaning plate is in contact with a part of the end surface of the glue outlet.

[0051] The embodiment of the present application also discloses a cigarette making machine, comprising the above-mentioned glue supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 Schematic diagram showing the structure of the glue supply device according to the embodiment of the present invention Figure 1 ;

[0053] Figure 2 A schematic diagram showing a partial internal structure of a glue supply device according to an embodiment of the present invention;

[0054] Figure 3 Schematic diagram showing the structure of the glue supply device according to the embodiment of the present invention Figure 2 ;

[0055] Figure 4 Show Figure 1 Enlarged view of point A in the middle;

[0056] Figure 5 Show Figure 4 Enlarged view of point C in the middle;

[0057] Figure 6 A schematic diagram showing the structure of the ratchet and the driving wheel;

[0058] Figure 7 An exploded view of the drive disc and transmission top block according to an embodiment of the present invention is shown;

[0059] Figure 8 A schematic structural diagram of the anti-rebound mechanism is shown;

[0060] Figure 9 A schematic diagram showing the state of the anti-rebound mechanism and the anti-drop mechanism when squeezing and supplying glue;

[0061] Figure 10 A schematic diagram showing the states of the anti-rebound mechanism and the anti-drop mechanism when adding glue;

[0062] Figure 11 Show Figure 3 Enlarged view of point B in the middle;

[0063] FIG12( a ) shows a schematic diagram of the positional relationship between the transmission push rod and the transmission push block in one embodiment of the present invention;

[0064] FIG12( b ) shows a schematic diagram of the positional relationship between the transmission ejector rod and the transmission ejector block in another embodiment of the present invention;

[0065] In the figure: 10-glue cylinder, 11-glue extrusion plate, 12-glue outlet, 13-first bracket, 131-first mounting groove, 1311-locking hole, 132-second mounting groove, 133-guide groove, 141-first guide rod, 142-second guide rod, 15-second bracket, 20-driving mechanism, 21-driving disk, 211-annular groove, 2111-first mounting hole, 22-transmission top block, 221-top block body, 222-mounting portion, 2221-second mounting hole, 223-arc groove, 23-connecting member, 24-touch rod, 25-driving portion, 30-transmission mechanism, 31-guide rail, 311-slide groove, 312-slider, 313-elastic member, 32-first rack, 33-first transmission gear, 34-drive Driving wheel, 3401-second positioning pin hole, 341-ratchet, 3411-hinge hole, 3412-first positioning pin hole, 342-spring clip, 35-second rack, 36-second transmission gear, 37-inner ratchet, 371-ratchet, 38-transmission push rod, 40-cleaning mechanism, 41-first transmission belt, 42-transmission shaft, 43-second transmission belt, 44-rotating roller, 45-cleaning plate, 50-warning bell, 60-anti-rebound mechanism, 61-first friction wheel, 62-first rotating shaft, 621-first eccentric shaft segment, 622-first knob, 63-first one-way bearing, 70-anti-drop mechanism, 71-second friction wheel, 72-second rotating shaft, 721-second eccentric shaft segment, 722-second knob, 73-second one-way bearing. DETAILED DESCRIPTION

[0066] The following is an explanation of the embodiments of the present invention by specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiment is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0067] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0068] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention 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. Therefore, they cannot be understood as limitations on the present invention.

[0069] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0070] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0071] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0072] The present application embodiment discloses a glue supply device, referring to Figures 1-6 The device includes a rubber cartridge 10 for containing glue. A glue outlet 12 is provided at the bottom of the rubber cartridge 10. A glue extrusion plate 11 is slidably disposed within the rubber cartridge 10. When the glue extrusion plate 11 moves downward in a first direction, it squeezes the glue within the rubber cartridge 10 toward the glue outlet 12. A bracket is disposed above the rubber cartridge 10. The bracket is provided with a drive mechanism 20, as well as an inner ratchet 37 and a drive wheel 34 that are rotatably disposed thereon. The inner ratchet 37 includes a central hole and ratchet teeth 371 disposed circumferentially therefrom. The drive wheel 34 is located within the central hole and is provided with a pawl 341 that engages with the ratchet teeth 371. The driving mechanism 20 is connected to the driving wheel 34 and is used to drive the driving wheel 34 to rotate in a forward or reverse direction at a set angle. The glue squeezing plate 11 is connected to the inner ratchet 37 through the transmission mechanism 30, so that when the driving wheel 34 rotates in a forward or reverse direction at a set angle, the transmission mechanism 30 can drive the glue squeezing plate 11 to intermittently slide along the first direction of the rubber cylinder 10, where the first direction is the axial direction of the rubber cylinder 10.

[0073] As described above, in the embodiment of the present application, the drive mechanism 20 drives the drive wheel 34 to rotate in the forward or reverse direction at a set angle. The internal ratchet 37, coupled with the transmission mechanism 30, drives the glue extrusion plate 11 to move a specific distance, thereby achieving a constant supply of glue. Furthermore, the drive wheel 34 is connected to the internal ratchet 37 via a pawl 341 and a ratchet tooth 371. When the drive wheel 34 rotates in either the forward or reverse direction, the drive wheel 34 and the internal ratchet 37 are disconnected, allowing the glue extrusion plate 11 to stop while the drive wheel 34 rotates in that direction. This allows for a continuous, intermittent supply of glue.

[0074] Reference Figure 5 and Figure 6 When the driving mechanism 20 drives the driving wheel 34 in the positive direction (such as Figure 6 When the pawl 341 is engaged with the ratchet 371, the driving wheel 34 drives the inner ratchet 37 to rotate in the positive direction. During the rotation process, the inner ratchet 37 can drive the glue extrusion plate 11 downward in the first direction (as shown in FIG. Figure 5 The glue is squeezed out from the glue outlet 12 to realize glue supply. When the driving mechanism 20 drives the driving wheel 34 in the reverse direction (as shown in FIG. Figure 6 As shown in the middle V direction), the pawl 341 is disengaged from the ratchet 371, and the driving wheel 34 cannot apply a rotational force to the inner ratchet 37. Therefore, the inner ratchet 37 and the glue extrusion plate 11 are both stationary. At this time, the glue will not be squeezed out from the glue outlet 12, thereby realizing an intermittent supply of glue.

[0075] In the embodiment of the present application, the drive mechanism 20 drives the drive wheel 34 to rotate alternately in the forward and reverse directions. That is, the drive mechanism 20 drives the drive wheel 34 to rotate once in the forward direction and once in the reverse direction, and the angle of each forward rotation of the drive wheel 34 is equal. Therefore, each time the drive wheel 34 rotates in the forward direction, the glue extrusion plate 11 moves downward by an equal distance, thereby ensuring that the glue supply amount is equal each time.

[0076] In a specific embodiment, the driving mechanism 20 is a motor (not shown in the figure), the output shaft of the motor is connected to the driving wheel 34, and the motor drives the driving wheel 34 to rotate forward or reverse at a set angle.

[0077] In another specific embodiment, referring to Figure 1 、 Figure 2 and Figure 4The bracket includes a first bracket 13 disposed above the glue cylinder 10 and a second bracket 15 disposed to one side of the first bracket 13. The drive mechanism 20 includes a drive unit 25 rotatably mounted on the first bracket 13 and a drive disc 21. The drive unit 25 is configured to drive the drive disc 21 to rotate about its axis. The drive disc 21 is located above the glue extrusion plate 11. A plurality of transmission top blocks 22 are spaced apart along the circumference of the drive disc 21 on its lower end surface. The bottom of the transmission top blocks 22 has an arc-shaped structure.

[0078] Reference Figures 4 to 6 The first rack 32, to which the second bracket 15 is slidably connected, abuts against the transmission top block 22 along the first direction. Specifically, a guide rail 31 extending along the first direction is provided on the second bracket 15. The guide rail 31 has a slide groove 311. A slider 312 is slidably provided in the slide groove 311. The first rack 32 is connected to the slider 312. That is, the first rack 32 is slidably connected to the guide rail 31 via the slider 312 and the slide groove 311. An elastic member 313 is also provided in the guide rail 31. The upper end of the elastic member 313 abuts against the slider 312. The elastic member 313 is used to apply a force upward in the first direction (i.e., toward the drive disk) to the first rack 32, so that when the transmission top block 22 disengages from the first rack 32, the first rack 32 moves upward along the first direction from the second position to the first position. Exemplarily, the elastic member 313 is a spring, and the top end of the elastic member 313 along the first direction abuts against the lower end surface of the slider 312 . The elastic member 313 applies elastic force to the slider 312 to reset the first rack 32 .

[0079] Continue to refer to Figures 4 to 6 The transmission mechanism 30 includes a second rack 35. The second bracket 15 is further provided with a guide slot 133. The second rack 35 is slidably connected to the guide slot 133. The lower end of the second rack 35 is connected to the glue extrusion plate 11. The second rack 35 is meshingly connected to a second transmission gear 36, which is coaxially connected to an inner ratchet 37. For example, the first transmission gear 33, the drive wheel 34, the second transmission gear 36, and the inner ratchet 37 are all rotatably mounted on the second bracket 15 via a bearing seat.

[0080] Specifically, during the process of extruding and supplying glue, if the top end of the first rack 32 is located between two adjacent transmission top blocks 22, when the driving disk 21 rotates, the arc surface of the lower end of the transmission top block 22 gradually approaches and contacts the top end of the first rack 32, and the first rack 32 is squeezed by the transmission top block 22 and gradually moves downward along the first direction (such as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 K direction) moves from the first position to the second position, driving the first transmission gear 33 and the driving wheel 34 along the positive direction (i.e. Figure 6At this time, the pawl 341 is engaged with the ratchet tooth 371, and the inner ratchet 37 and the second transmission gear 36 are driven by the driving wheel 34 to rotate in the positive direction. The second transmission gear 36 drives the second rack 35 to move a certain distance downward in the first direction (K direction) through engagement, thereby causing the glue squeezing plate 11 to move downward in the first direction to squeeze the glue in the rubber cylinder 10 out of the glue outlet 12, thereby completing the quantitative supply of glue.

[0081] As the driving disc 21 continues to rotate, the arc surface of the lower end of the transmission top block 22 gradually separates from the top end of the first rack 32, so that the top end of the first rack 32 is located in the space between adjacent transmission top blocks 22, and the downward squeezing force of the transmission top block 22 on the first rack 32 is lost. Under the action of the elastic force of the elastic member 313, the first rack 32 moves upward along the first direction (such as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 In the process, the first rack 32 drives the first transmission gear 33 and the driving wheel 34 to rotate in the opposite direction (such as Figure 6 When the angle is set (as shown in the V direction in the middle), the driving wheel 34 drives the pawl 341 to rotate in the reverse direction, and the pawl 341 slides relative to the ratchet teeth 371 and disengages from the ratchet teeth 371. Therefore, the inner ratchet 37 does not rotate with the driving wheel 34, and further, the second transmission gear 36 and the second rack 35 do not move with the first rack 32, so that the glue squeezing plate 11 is located at the position after the previous squeezing action, that is, at the starting position of the next squeezing action.

[0082] When the driving disc 21 continues to rotate, the above-mentioned action process will be repeated, and the glue can be continuously and quantitatively supplied in this reciprocating manner.

[0083] That is, because the arc-shaped structures of the transmission top blocks 22 are identical, the distances they drive the first rack 32 to move are identical. Therefore, rotation of the drive disc 21 can drive rotation of each transmission top block 22, thereby driving the first rack 32 to reciprocate between the first position and the second position in the first direction, thereby controlling the amount of glue squeezed by the glue squeezing plate 11. Furthermore, because the first rack 32 and the second rack 35 are connected by the pawl and ratchet structure of the internal ratchet 37 and the drive wheel 34, the reciprocating motion of the first rack 32 can drive the second rack 35 to intermittently move downward in the first direction, thereby meeting the requirement for continuous, intermittent, and quantitative supply of glue.

[0084] Further, refer to Figure 6, a hinge hole 3411 is provided on the pawl 341, and the pawl 341 is hinged to the driving wheel 34 through the hinge hole 3411. The driving wheel 34 is also provided with a spring 342, and the spring 342 is used to press the ratchet on the pawl 341 so that the pawl 341 is engaged with the ratchet 371. A first positioning pin hole 3412 is provided on the pawl 341, and a second positioning pin hole 3401 is provided on the driving wheel 34. When the pawl 341 rotates until the first positioning pin hole 3412 coincides with the second positioning pin hole 3401, the pawl 341 is disengaged from the ratchet 371. When the glue squeezing plate 11 moves to the bottom of the rubber cylinder 10, it is necessary to move the glue squeezing plate 11 to the top of the rubber cylinder 10 to leave space for adding glue to the rubber cylinder 10, overcome the elastic force of the spring 342, and move in the reverse direction (such as Figure 6 The pawl 341 is rotated (as shown in the V direction in the figure) to align the first positioning pin hole 3412 with the second positioning pin hole 3401, and a fixing pin (not shown in the figure) is inserted into the first positioning pin hole 3412 and the second positioning pin hole 3401 to fix the pawl 341 on the driving wheel 34 and disengage the ratchet 371. At this time, the second gear is disconnected from the first gear and moves upward in the first direction (as shown in the V direction in the figure). Figure 1 、 Figure 2 、 Figure 4 and Figure 5 By moving the second rack 35 in the middle (U direction), the glue extrusion plate 11 can be driven to move to the initial position.

[0085] Further, refer to Figure 5 The transmission mechanism 30 also includes a transmission push rod 38 connected to the slider 312, and the end of the transmission push rod 38 abuts against the transmission top block 22, that is, the transmission top block 22 pushes the first rack 32 to move along the first direction through the transmission push rod 38.

[0086] In actual application, when the first rack 32 is in the first position, the top end of the transmission top rod 38 may be in contact with the lower end surface of the driving disk 21 (as shown in FIG12(a)), or may be located between the lower end surface of the driving disk 21 and the bottom height of the transmission top block 22 (as shown in FIG12(b)). With respect to the situation shown in FIG12(b), in some specific embodiments, reference Figure 5 The slider 312 of the present application is provided with a threaded connection hole extending through the slider 312 in a first direction. The lower end of the transmission push rod 38 is threadedly connected to the connection hole. With this arrangement, the length of the transmission push rod 38 protruding from the slider 312 in the first direction can be adjusted by rotating the transmission push rod 38, thereby adjusting the amount of glue discharged from the rubber cartridge 10 in a single shot.

[0087] Specifically, increasing the length of the transmission push rod 38 protruding from the slider 312 increases the compression of the elastic member 313 when the first rack 32 is in the second position, thereby increasing the upward force exerted by the elastic member 313 on the slider 312. When the transmission push block 22 rotates to disengage from the transmission push rod 38, the transmission push rod 38, with its larger extension, moves upward a greater distance under the thrust of the elastic member 313, thereby increasing the travel of the first rack 32 between the first and second positions and the travel of the glue extrusion plate 11. This allows the glue extrusion plate 11 to squeeze more glue from the rubber cylinder 10, thereby increasing the single-shot glue output of the rubber cylinder 10. This design can meet varying glue quantity requirements in production, improving the applicability of the device.

[0088] Further, refer to Figure 7 The transmission top block 22 includes a top block body 221. The top block body 221 is an arc-shaped structure with an arc-shaped groove 223 at its bottom. The end of the transmission top rod 38 can extend into the arc-shaped groove 223 and slide against the arc-shaped groove 223. The end of the top block body 221 is provided with a mounting portion 222, which is used to connect with the drive disk 21. As a specific embodiment, the lower end surface of the drive disk 21 is provided with an annular groove 211, and first mounting holes 2111 are spaced apart along the groove wall of the annular groove 211 and pass through the groove walls on both sides. The mounting portion 222 of the top block body 221 is provided with a second mounting hole 2221. The first mounting hole 2111 and the second mounting hole 2221 are connected by a connecting member 23 to connect the transmission top block 22 to the drive disk 21. Exemplarily, the first mounting hole 2111 and the second mounting hole 2221 are threaded holes, and the connecting member 23 is a bolt. During installation, the mounting portion 222 can be inserted into the corresponding position of the mounting slot and then fixed by the connecting piece 23. Under the premise that the rotation speed of the driving portion 25 is constant, the corresponding number of transmission top blocks 22 can be selected and installed according to the glue discharge frequency required for production, thereby adjusting the frequency of glue extrusion by the glue extrusion plate 11.

[0089] Reference Figure 1 and Figure 3 The glue extrusion plate 11 is connected to a first guide rod 141 and a second guide rod 142. Along the first direction, the first guide rod 141 and the second guide rod 142 pass through the first bracket 13 and are slidably connected to the first bracket 13, providing guidance for the movement of the glue extrusion plate 11.

[0090] Further, refer to Figure 1 、 Figure 2 and Figure 4The vertical bars on both sides of the first bracket 13 are respectively provided with a first mounting slot 131 and a second mounting slot 132. The first mounting slot 131 houses an anti-rebound mechanism 60 located on one side of the first guide rod 141. The anti-rebound mechanism 60 is used to prevent the glue extrusion plate 11 from rebounding when the glue extrusion plate 11 is extruding glue. The second mounting slot 132 houses an anti-drop mechanism 70 located on one side of the second guide rod 142. The anti-drop mechanism 70 is used to secure the glue extrusion plate above the glue cylinder 10 to prevent it from falling when glue is added to the glue cylinder 10. The anti-rebound mechanism 60 and the anti-drop mechanism 70 have the same structure, and the following description uses the anti-rebound mechanism 60 as an example:

[0091] Reference Figure 8 、 Figure 9 and Figure 10 The anti-rebound mechanism 60 includes a first rotating shaft 62 and a first friction wheel 61. The first rotating shaft 62 is rotatably connected to the wall of the first mounting slot 131 at both ends. The first rotating shaft 62 is a multi-segment shaft, including two shaft segments at both ends and a first eccentric shaft segment 621 connected between the two shaft segments. The axis of the first eccentric shaft segment 621 is eccentrically arranged relative to the axis of the two shaft segments at both ends. The shaft segments at the two ends of the first rotating shaft 62 are coaxially arranged and rotatably connected to the wall of the first mounting slot 131. The first eccentric shaft segment 621 is located within the first mounting slot 131, and the first friction wheel 61 is coaxially rotatably mounted on the first eccentric shaft segment 621. Specifically, the distance between the axis of rotation at the connection between the first rotating shaft 62 and the first mounting groove 131 and the first guide rod 141 is greater than the radius of the first friction wheel 61. After the first rotating shaft 62 rotates a certain angle, it can rotate the first eccentric shaft segment 621 to a position close to the first guide rod 141, thereby causing the first friction wheel 61 to come into frictional contact with the first guide rod 141, or rotate the first eccentric shaft segment 621 to a position away from the first guide rod 141, thereby causing the first friction wheel 61 to disengage from the first guide rod 141. The first friction wheel 61 is connected to the first rotating shaft 62 through a first one-way bearing 63, so that the first friction wheel 61 can only rotate in a specific direction relative to the first rotating shaft 62. A first locking member is provided on the first mounting groove 131, and the first locking member is used to limit the rotation of the first rotating shaft 62. Specifically, referring to Figure 8 The first locking member includes a locking hole 1311 provided on the first mounting groove 131, and a limit screw (not shown in the figure) cooperating with the locking hole 1311. The locking hole 1311 passes through the wall of the first mounting groove 131 and leads to the first rotating shaft 62. When the first rotating shaft 62 rotates a certain angle, the first friction wheel 61 is adjusted to contact or separate from the first guide rod 141, and the limit screw is tightened to abut against the first rotating shaft 62 to limit the rotation of the first rotating shaft 62.

[0092] Reference Figure 9 and Figure 10The anti-drop mechanism 70 includes a second rotating shaft 72 and a second friction wheel 71. The second rotating shaft 72 is a multi-segment shaft, comprising two end segments and a second eccentric segment 721 connected between the two end segments. The axis of the second eccentric segment 721 is eccentric relative to the axis of the end segments of the second rotating shaft 72. The end segments of the second rotating shaft 72 are coaxially arranged and rotatably connected to the wall of the second mounting slot 132. The second eccentric segment 721 is located within the second mounting slot 132, and the second friction wheel 71 is coaxially rotatably mounted on the second eccentric segment 721. The distance between the axis at the junction of the second rotating shaft 72 and the second mounting slot 132 and the second guide rod 142 is greater than the radius of the second friction wheel 71. After rotating the second rotating shaft 72 a certain angle, the second eccentric shaft segment 721 can rotate close to the second guide rod 142, thereby causing the second friction wheel 71 to frictionally contact the second guide rod 142. Alternatively, the second eccentric shaft segment 721 can rotate away from the second guide rod 142, thereby separating the second friction wheel 71 from the second guide rod 142. The second friction wheel 71 and the second eccentric shaft segment 721 are connected via a second one-way bearing 73. A second locking member, similar in structure to the first locking member, is provided on the second mounting slot 132 to limit the rotation of the second rotating shaft 72.

[0093] In this embodiment, the first one-way bearing 63 and the second one-way bearing 73 are both configured to rotate only in the positive direction (eg Figure 9 and Figure 10 , that is, the first friction wheel 61 can only rotate in the positive direction relative to the first rotating shaft 62, and the second friction wheel 71 can only rotate in the positive direction relative to the second eccentric shaft segment.

[0094] For ease of operation, a first knob 622 is provided on the outer end surface of the first rotating shaft 62 , and / or a second knob 722 is provided on the outer end surface of the second rotating shaft 72 .

[0095] In one embodiment, the first friction wheel 61 is configured to frictionally contact the guide rod when the glue squeezing plate 11 moves downward in the first direction, at which point the second friction wheel 71 is separated from the second guide rod 142. The second friction wheel 71 is configured to frictionally contact the guide rod when the glue squeezing plate 11 is located at the top of the rubber cylinder 10, at which point the first friction wheel 61 is separated from the first guide rod 141.

[0096] Specifically, refer to Figure 9 , when squeezing the glue, along the positive direction (such as Figure 9The first knob 622 is rotated in the Z direction to bring the first friction wheel 61 into frictional contact with the first guide rod 141; the second knob 722 is rotated in the forward direction to cause the second friction wheel 71 to separate from the second guide rod 142. At this time, the glue extrusion plate 11 intermittently moves downward to squeeze glue, and the first friction wheel 61 can intermittently rotate in the forward direction along with the first guide rod 141. When the glue extrusion plate 11 stops moving, the glue may exert a rebound force F on the glue extrusion plate 11 in the first direction. H Since the first one-way bearing 63 can only allow the first friction wheel 61 to rotate in the positive direction relative to the first eccentric shaft segment 621, there is a downward resistance F in the first direction between the first friction wheel 61 and the first guide rod 141. K , which can prevent the glue extrusion plate 11 from rebounding.

[0097] Reference Figure 10 After the glue in the rubber cylinder 10 is used up, it is necessary to add glue to the rubber cylinder 10 and reset the glue extrusion plate 11 to the top of the rubber cylinder 10. At this time, in the reverse direction (such as Figure 10 The first knob 622 is rotated (as shown in the F direction) to separate the first friction wheel 61 from the first guide rod 141. The second knob 722 is rotated in the opposite direction to make the second friction wheel 71 frictionally contact the second guide rod 142. At this time, the glue extrusion plate 11 is affected by gravity, which is equivalent to applying a downward force F to the second guide rod 142. G Since the second friction wheel 71 is in friction contact with the second guide rod 142 and the second one-way bearing 73 can only rotate in the positive direction, it is equivalent to the second friction wheel 71 exerting a friction force F in the first direction upward on the second guide rod 142. U To resist F G , achieving the effect of preventing the glue extrusion plate 11 from falling.

[0098] That is, when the glue is squeezed and supplied, the anti-rebound mechanism 60 is in frictional contact with the first guide rod 141, thereby preventing the glue squeezing plate 11 from rebounding during the process of squeezing the glue. When the glue is added to the glue cylinder 10, the anti-drop mechanism 70 is in frictional contact with the second guide rod 142, thereby preventing the glue squeezing plate 11 from falling.

[0099] In another specific embodiment, the glue supply device of the embodiment of the present application may also only include the anti-drop mechanism 70.

[0100] Further, refer to Figure 1Trigger rods 24 are circumferentially spaced apart on the upper end surface of the drive disk 21. The positions of the trigger rods 24 correspond to those of the transmission top block 22. A warning bell 50 is provided at the top of the second rack 35. When the glue squeezing plate 11 moves to the bottom of the rubber cylinder 10, the remaining glue in the rubber cylinder 10 is insufficient. The second rack 35 moves downward in the first direction (direction K), driving the warning bell 50 to a position where it can contact the trigger rods 24. As the drive disk 21 drives the trigger rods 24 to rotate continuously, the trigger rods 24 continuously collide with the warning bell 50, sounding a warning, allowing workers to promptly detect insufficient glue and take timely measures to ensure normal production.

[0101] Further, refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 11 The glue supply device of the embodiment of the present application also includes a cleaning mechanism 40, which includes a cleaning plate 45 disposed at the glue outlet 12, a transmission shaft 42, and a rotating roller 44 for transmission-connecting the cleaning plate 45 to the drive unit 25. Specifically, the transmission shaft 42 is disposed on one side of the rubber cylinder 10 and extends along a first direction of the rubber cylinder 10. The upper and lower ends of the transmission shaft 42 are respectively provided with an upper pulley and a lower pulley. The rotating roller 44 is rotatably disposed outside the glue outlet 12. The cleaning plate 45 is disposed on the rotating roller 44 via a vertical connecting rod. The cleaning plate 45 is rotatably or detachably connected to the connecting rod so that the position of the cleaning plate 45 relative to the connecting rod can be adjusted. The upper pulley of the transmission shaft 42 is transmission-connected to the output end of the drive unit 25 via a first transmission belt 41, and the lower pulley of the transmission shaft 42 is transmission-connected to the rotating roller 44 via a second transmission belt 43. Thus, the driving unit 25 drives the driving disc 21 to rotate while simultaneously driving the transmission shaft 42 to rotate via the first transmission belt 41. The transmission shaft 42 drives the rotating roller 44 to rotate via the second transmission belt 43, thereby rotating the end surface of the cleaning plate 45 relative to the glue outlet 12 and cleaning it, thereby preventing the glue residue and solidification at the glue outlet 12 during the glue discharging process and ensuring smooth glue discharge from the glue outlet 12. When cleaning is no longer needed, the cleaning plate 45 is rotated 180 degrees relative to the connecting rod to disengage the cleaning plate 45 from the glue outlet 12.

[0102] Another embodiment of the present application further discloses a cigarette making machine, comprising the above-mentioned glue supply device.

[0103] Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by those skilled in the art that the above description is provided as a further detailed description of the present invention in conjunction with specific embodiments thereof, and that the specific implementation of the present invention is not limited to these descriptions. Those skilled in the art may make various changes in form and details, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A glue supply device, characterized in that: include: A glue cylinder, the bottom of which is provided with a glue outlet, and a glue extrusion plate is slidably provided inside the glue cylinder; A bracket, arranged on the rubber cylinder; an inner ratchet rotatably mounted on the bracket, the inner ratchet comprising a central hole and ratchet teeth arranged along the circumference of the central hole; a driving wheel rotatably mounted on the bracket and located in the central hole, the driving wheel being provided with a pawl for engaging with the ratchet; a driving mechanism, disposed on the bracket and connected to the driving wheel, the driving mechanism being used to drive the driving wheel to rotate in a forward or reverse direction at a set angle; a transmission mechanism connected to the inner ratchet and the glue extrusion plate, respectively, so that when the drive wheel rotates in the forward or reverse direction at the set angle, the transmission mechanism can drive the glue extrusion plate to intermittently slide in the first direction; Wherein, the first direction is the axial direction of the rubber cylinder.

2. The glue supply device according to claim 1, characterized in that: The pawl is provided with a first positioning pin hole, and the driving wheel is provided with a second positioning pin hole; when the pawl rotates until the first positioning pin and the second positioning pin coincide with each other, the pawl is disengaged from the ratchet.

3. The glue supply device according to claim 1, characterized in that: Also includes: a first rack slidably connected to the bracket, the driving mechanism being connected to the first rack, and the driving mechanism being capable of driving the first rack to reciprocate between a first position and a second position along the first direction; A first transmission gear is meshed with the first rack, and the first transmission gear is coaxially connected to the drive wheel so that when the first rack reciprocates between the first position and the second position along the first direction, it can drive the drive wheel to rotate in the forward or reverse direction by the set angle.

4. The glue supply device according to claim 3, characterized in that: The transmission mechanism comprises: a second rack, slidably connected to the bracket, and the second rack is connected to the glue extrusion plate; a second transmission gear, coaxially connected to the inner ratchet, and the second transmission gear is meshed with the second rack; The inner ratchet is configured such that, when the first rack moves from the first position to the second position, the drive wheel rotates forward by the set angle, the pawl engages with the ratchet teeth to drive the inner ratchet to rotate, and the glue extrusion plate moves along the first direction to squeeze the glue to the glue outlet; when the first rack moves from the second position to the first position, the drive wheel rotates backward by the set angle, the pawl disengages from the ratchet teeth, and the inner ratchet is disconnected from the drive wheel, so that the second rack and the glue extrusion plate remain stationary.

5. The glue supply device according to claim 4, characterized in that: The driving mechanism comprises: A driving disk is rotatably mounted on the bracket; The transmission top block is arranged at intervals on the lower end surface of the driving disk along the circumferential direction of the driving disk; along the first direction, the first rack is elastically abutted against the transmission top block, so that when the driving disk rotates, the transmission top block drives the first rack to move from the first position to the second position; or when the transmission top block is out of contact with the first rack, the first rack moves from the second position to the first position.

6. The glue supply device according to claim 5, characterized in that: Also includes: a guide rail, disposed on the bracket, wherein the first rack is slidably connected to the guide rail; An elastic member is disposed in the guide rail, one end of the elastic member abuts against the first rack, and the elastic member is used to apply a force to the first rack along the first direction toward the driving disk, so that when the transmission top block disengages from the first rack, the first rack moves from the second position to the first position along the first direction.

7. The glue supply device according to claim 5, characterized in that: It also includes a transmission push rod, wherein the lower end of the transmission push rod is adjustably connected to the end of the first rack along the first direction, and the upper end of the transmission push rod abuts against the transmission top block.

8. The glue supply device according to claim 5, characterized in that: The transmission top block is detachably connected to the driving disc.

9. The glue supply device according to claim 5, characterized in that: Also includes: A trigger rod is arranged on the upper end surface of the driving disk at intervals along the circumferential direction; A warning bell is provided at the top end of the second rack, and the warning bell is configured so that when the glue extrusion plate moves to the bottom of the glue cylinder, the warning bell contacts the trigger rod.

10. The glue supply device according to claim 1, wherein: Also includes: A guide rod connected to the glue extrusion plate, wherein the guide rod is slidably connected to the bracket in the first direction; An anti-rebound mechanism is provided on the bracket, and the anti-rebound mechanism includes: a first rotating shaft rotatably connected to the bracket, the first rotating shaft comprising a first eccentric shaft segment, the axis of the first eccentric shaft segment being eccentrically arranged relative to the rotation axis of the first rotating shaft; a first friction wheel rotatably disposed on the first eccentric shaft segment, the first friction wheel being configured to frictionally contact the guide rod when the glue extrusion plate moves downward along the first direction; a first one-way bearing, configured to connect the first friction wheel and the first eccentric shaft segment; the first one-way bearing is configured to only allow the first friction wheel to rotate in a positive direction relative to the first rotating shaft; The first locking member is used to limit the rotation of the first rotating shaft.

11. The glue supply device according to claim 1, characterized in that: Also includes: A guide rod connected to the glue extrusion plate, wherein the guide rod is slidably connected to the bracket in the first direction; An anti-drop mechanism is provided on the bracket, and the anti-drop mechanism includes: a second rotating shaft rotatably connected to the bracket, the second rotating shaft comprising a second eccentric shaft segment, the axis of the second eccentric shaft segment being eccentrically arranged relative to the rotation axis of the second rotating shaft; a second friction wheel rotatably disposed on the second eccentric shaft segment, the second friction wheel being configured to be in frictional contact with the guide rod when the glue extrusion plate is located at the top of the glue cylinder; a second one-way bearing, configured to connect the second friction wheel and the second eccentric shaft segment; the second one-way bearing is configured to only allow the second friction wheel to rotate in a positive direction relative to the second rotating shaft; The second locking member is used to limit the rotation of the second rotating shaft.

12. The glue supply device according to any one of claims 1 to 11, characterized in that: Also includes: a transmission shaft, the upper end of which is in transmission connection with the driving mechanism so that the driving mechanism drives the transmission shaft to rotate; A rotating roller is rotatably arranged on the outer side of the glue outlet, and the rotating roller is transmission-connected to the lower end of the transmission shaft; A cleaning plate is connected to the rotating roller, and an end surface of the cleaning plate is in contact with a portion of the end surface of the glue outlet.

13. A cigarette making machine, characterized in that: The glue supply device comprises the glue supply device according to any one of claims 1 to 12.

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