A cigarette packet turning device

Abstract

This invention provides a cigarette pack turning device, comprising: a turning mechanism having an inlet and an outlet; an inlet trough with its outlet end connected to the inlet; an inlet pushing mechanism for pushing cigarette packs output from the inlet trough into the turning mechanism; an outlet trough with its inlet end connected to the outlet; an outlet pushing mechanism for pushing cigarette packs on the outlet trough to its outlet end; a first detection unit electrically connected to a control system, which sends a signal to stop a first drive mechanism when a cigarette pack in the inlet trough becomes blocked; and a second detection unit electrically connected to the control system, which sends a signal to stop a second drive mechanism when a cigarette pack in the outlet trough becomes blocked. This invention can control the inlet pushing mechanism and the outlet pushing mechanism to stop operating when the inlet or outlet trough becomes blocked, thereby preventing damage to the cigarette packs and the device due to excessive compression.

Description

Technical Field

[0001] This invention relates to the field of tobacco pack processing equipment technology, and in particular to a tobacco pack flipping device. Background Technology

[0002] As a relatively new product in recent years, medium-length cigarettes have gained popularity among consumers and the market due to their unique cigarette appearance and packaging. Unlike the conventional flat packaging, medium-length cigarettes are mostly packaged vertically. To meet the packaging requirements of medium-length cigarette carton packaging machines, a cigarette pack flipping device is typically installed between the cigarette pack container and the YB65 carton packaging machine to flip the flat cigarette packs output from the container into vertical packs. The cigarette pack flipping device includes a feeding chute, a flipping mechanism, and a discharging chute arranged sequentially along the cigarette pack conveying direction. The feeding chute is located between the feeding inlet of the cigarette pack container and the flipping mechanism, while the discharging chute is located between the discharging inlet of the flipping mechanism and the YB65 carton packaging machine. The feeding pushing mechanism pushes the flat cigarette packs on the feeding chute into the flipping mechanism, and the discharging pushing mechanism pushes the vertical cigarette packs output from the flipping mechanism into the YB65 carton packaging machine.

[0003] In current cigarette pack turning devices, the feed chute and discharge chute may become clogged. If the feed pushing mechanism and discharge pushing mechanism continue to push the cigarette pack at this time, the cigarette pack may be crushed and deformed, or the pusher head may be broken. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problem that when the feed chute and discharge chute become blocked, the continued operation of the feeding and discharging mechanisms leads to damage to the cigarette packs and the device. This invention provides a cigarette pack turning device that can control the feeding and discharging mechanisms to stop operating when the feed chute or discharge chute becomes blocked, thereby preventing damage to the cigarette packs and the device.

[0005] To make the technical solution and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below.

[0006] An embodiment of the present invention provides a cigarette pack flipping device, comprising:

[0007] The flipping mechanism is equipped with a feed inlet and a discharge outlet. The flipping mechanism is used to flip the cigarette pack.

[0008] The feed chute has its outlet end connected to the feed inlet.

[0009] The feeding and pushing mechanism is used to push the cigarette packs output from the feeding trough into the turning mechanism;

[0010] The discharge chute has its inlet end connected to its outlet.

[0011] The discharge pushing mechanism is used to push the cigarette packs on the discharge trough to the discharge end of the discharge trough;

[0012] The first drive mechanism is used to drive the feeding and pushing mechanism.

[0013] The second drive mechanism is used to drive the material feeding mechanism; the control system is electrically connected to the first drive mechanism and the second drive mechanism.

[0014] The first detection unit is located on the feeding and pushing mechanism. The first detection unit is electrically connected to the control system. When the cigarette pack on the feeding trough is blocked, the first detection unit sends a signal to the control system to stop the first drive mechanism from running.

[0015] The second detection unit is located on the material feeding mechanism and is electrically connected to the control system. When the cigarette packs on the material feeding trough become blocked, the second detection unit sends a signal to the control system to stop the second drive mechanism from running.

[0016] According to another specific embodiment of the present invention, the feeding and pushing mechanism includes:

[0017] The push rod has a feeding push head at its first end and a groove on its push rod.

[0018] The transmission component is connected to the first drive mechanism. The first drive mechanism can drive the transmission component to reciprocate along the first direction. The transmission component is provided with a channel extending along the first direction. The middle part and the second end of the push rod are inserted into the channel. The side wall of the channel is provided with a through hole. The through hole and the groove are positioned corresponding to each other, and the through hole and the groove form a first receiving cavity.

[0019] The first steel ball is disposed in the first receiving cavity, and the first steel ball is in contact with the bottom surface of the groove, the depth of the groove being less than the radius of the first steel ball;

[0020] An elastic sheet covers the end of the through hole and is in contact with the first steel ball. When the first steel ball moves out of the groove, the elastic sheet can apply an elastic force to the first steel ball.

[0021] According to another specific embodiment of the present invention, the transmission component includes a body and a cover plate. The body is provided with a through groove, the cover plate covers the through groove, and the cover plate is connected to the body by bolts. The cover plate and the through groove form a channel, a through hole is provided on the cover plate, and an elastic sheet is connected to the cover plate by bolts.

[0022] According to another specific embodiment of the present invention, the inner wall of the groove is a sphere with the same radius as the first steel ball. The sum of the length of the through hole and the depth of the groove is equal to the diameter of the first steel ball. The ratio of the maximum depth of the groove to the radius of the first steel ball is 1:3.

[0023] According to another specific embodiment of the present invention, the feeding and pushing mechanism further includes a guiding mechanism, which includes:

[0024] A connecting plate is connected to the main body. The connecting plate is provided with a pin extending along a third direction, which is perpendicular to the first direction.

[0025] The bearing is fitted onto the pin.

[0026] The guide rail has a guide groove extending in a first direction. The bearing is located in the guide groove, and the outer circumferential surface of the bearing is in contact with the side wall of the guide groove. When the first drive mechanism drives the transmission component to reciprocate in the first direction, the bearing can move with the transmission component in the guide groove.

[0027] According to another specific embodiment of the present invention, the first detection unit is a proximity switch. The first detection unit is located on the outside of the elastic sheet, and the detection end of the first detection unit faces the outer surface of the elastic sheet. When the first steel ball is ejected from the first receiving cavity, the first steel ball squeezes the elastic sheet and bends it outward. The first detection unit can detect that the distance between it and the outer surface of the elastic sheet has decreased, and sends a detection signal to the control system. After receiving the detection signal, the control system controls the first driving mechanism to stop running.

[0028] According to another specific embodiment of the present invention, the material feeding mechanism includes:

[0029] The discharge pusher can slide back and forth in the second direction within the discharge chute;

[0030] The connecting rod, the first end of which is hinged to the discharge pusher;

[0031] An eccentric disc is formed, with the second end of the connecting rod hinged to the eccentric disc. Multiple first grooves are provided on the lower end surface of the eccentric disc.

[0032] The connecting seat is located below the eccentric plate. The upper surface of the connecting seat is provided with multiple second grooves, and each first groove corresponds to the position of each second groove. Each first groove and its corresponding second groove form a second receiving cavity.

[0033] Multiple second steel balls are respectively located in each second receiving cavity, and the connecting seat can drive the eccentric disk to rotate through the second steel balls;

[0034] Both the connecting seat and the eccentric disk are sleeved on the output shaft of the second drive mechanism. The connecting seat is fixedly connected to the output shaft. The eccentric disk can rotate and slide relative to the output shaft. The hinge axis of the second end of the connecting rod that is hinged to the eccentric disk is spaced a certain distance from the axis of the output shaft. When the rotation of the eccentric disk is blocked, the connecting seat can rotate relative to the eccentric disk, causing the second steel ball to dislodge from the second receiving cavity, thereby stopping the output of power to the eccentric disk.

[0035] According to another specific embodiment of the present invention, the sum of the depth of the first groove and the depth of the second groove is equal to the diameter of the second steel ball, and the ratio of the depth of the first groove to the depth of the second groove is 5:1.

[0036] According to another specific embodiment of the present invention, the diameter of the eccentric disk is larger than the diameter of the connecting seat. The second detection unit is a proximity switch. The second detection unit is located below the eccentric disk, and the detection end of the second detection unit faces the lower surface of the eccentric disk. When the second steel ball is ejected from the second receiving cavity, the second steel ball squeezes the eccentric disk away from the connecting seat. The second detection unit can detect the increase in the distance between the eccentric disk and the connecting seat and send a detection signal to the control system. The control system can control the second drive mechanism to stop running after receiving the detection signal.

[0037] According to another specific embodiment of the present invention, a spring sheet is further included. The spring sheet is disposed at the end of the output shaft, the lower surface of the spring sheet is in contact with the upper surface of the eccentric disk, and the spring sheet is capable of applying a downward elastic force to the upper surface of the eccentric disk.

[0038] According to another specific embodiment of the present invention, a cooling mechanism is further included, which is provided with an air blowing port for blowing air into the feed trough to reduce the temperature of the tobacco packs on the feed trough.

[0039] According to another specific embodiment of the present invention, the length of the feed trough is less than or equal to 420 mm, and the length of the discharge trough is less than or equal to 360 mm.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The embodiments of the present invention, by setting a first detection unit and a second detection unit, can send a signal to the control system when the feed trough or the discharge trough is blocked, so that the control system can control the feed pushing mechanism and the discharge pushing mechanism to stop operating, thereby avoiding damage to the cigarette pack and the device due to excessive compression. Attached Figure Description

[0042] Figure 1 This is a top view of a cigarette pack flipping device according to an embodiment of the present invention;

[0043] Figure 2 A cross-sectional view of a feeding and pushing mechanism according to an embodiment of the present invention is shown;

[0044] Figure 3 A perspective view of a feeding and pushing mechanism provided in an embodiment of the present invention is shown;

[0045] Figure 4 A perspective view of a feeding and pushing mechanism provided in another embodiment of the present invention is shown;

[0046] Figure 5A cross-sectional view of a material feeding mechanism according to an embodiment of the present invention is shown;

[0047] Figure 6 A perspective view of a material feeding mechanism provided in an embodiment of the present invention is shown.

[0048] Figure label:

[0049] 1. Cigarette packaging container; 2. Tilting mechanism; 21. Inlet; 22. Outlet; 3. Feed trough; 4. Outlet trough; 5. Feeding pushing mechanism; 51. Push rod; 52. Feeding push head; 53. Groove; 54. Transmission component; 55. Channel; 56. Through hole; 57. First receiving cavity; 58. First steel ball; 59. Elastic sheet; 60. Body; 61. Cover plate; 62. Guide mechanism; 63. Connecting plate; 64. Pin; 6 5. Bearing, 66. Guide rail, 67. Guide groove, 68. First detection unit, 7. Discharge pushing mechanism, 71. Discharge pusher, 72. Connecting rod, 73. Eccentric disc, 74. First groove, 75. Connecting seat, 76. Second groove, 77. Second receiving cavity, 78. Second steel ball, 79. Second detection unit, 80. Hinge axis, 81. Spring plate, 82. Output shaft, 83. Motor, 84. Bracket, 10. Cigarette pack. Detailed Implementation

[0050] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0051] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0053] In the description of this embodiment, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0054] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0055] To make the technical solution and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below. It should be noted that the "upper" position in this embodiment refers to... Figure 5 and Figure 6 The direction pointed to by the middle arrow T, in this embodiment, is the "down" direction, which is the direction opposite to... Figure 5 and Figure 6 The direction indicated by the middle arrow T is opposite to the direction indicated by the arrow.

[0056] refer to Figure 1 The present invention provides a cigarette pack flipping device, comprising:

[0057] The flipping mechanism 2 is provided with a feed inlet 21 and a discharge outlet 22. The flipping mechanism 2 is used to flip the cigarette pack 10.

[0058] Feed trough 3, the feed end of feed trough 3 is connected to the outlet of cigarette packaging container 1, and the discharge end of feed trough 3 is connected to feed inlet 21.

[0059] The feeding and pushing mechanism 5 is used to push the cigarette pack 10 output from the feeding trough 3 into the flipping mechanism 2;

[0060] The discharge chute 4 has its inlet end connected to the discharge port 22, and its outlet end connected to the inlet of the YB65 carton packaging machine.

[0061] The discharge pushing mechanism 7 is used to push the cigarette pack 10 on the discharge trough 4 to the discharge end of the discharge trough 4;

[0062] The first drive mechanism is used to drive the feeding and pushing mechanism 5 to operate;

[0063] The second drive mechanism is used to drive the material feeding mechanism 7 to operate;

[0064] The control system is electrically connected to the first drive mechanism and the second drive mechanism;

[0065] The first detection unit 68 is located on the feeding and pushing mechanism 5. The first detection unit 68 is electrically connected to the control system. When the cigarette pack 10 on the feeding trough 3 is blocked, the first detection unit 68 sends a signal to the control system to stop the first drive mechanism from running.

[0066] The second detection unit 79 is located on the discharge pushing mechanism 7. The second detection unit 79 is electrically connected to the control system. When the cigarette pack 10 on the discharge trough 4 is blocked, the second detection unit 79 sends a signal to the control system to stop the second drive mechanism from running.

[0067] The embodiments of the present invention, by setting a first detection unit 68 and a second detection unit 79, can send a signal to the control system when the feed trough 3 or the discharge trough 4 is blocked, so that the control system controls the feed pushing mechanism 5 and the discharge pushing mechanism 7 to stop operating, thereby avoiding damage to the cigarette pack 10 and the device due to excessive compression.

[0068] According to another specific embodiment of the present invention, reference is made to... Figures 2 to 4 The feeding and pushing mechanism 5 includes:

[0069] The push rod 51 has a feeding push head 52 at its first end. The feeding push head 52 can push the cigarette pack 10 output from the feeding trough 3 along a first direction (e.g., Figures 1 to 4 The push rod 51 (in the X direction shown) is pushed into the flipping mechanism 2, and a groove 53 is provided on the push rod 51;

[0070] The transmission component 54 is connected to the first drive mechanism. The first drive mechanism can drive the transmission component 54 to reciprocate along the first direction. The transmission component 54 is provided with a channel 55 extending along the first direction. The middle part and the second end of the push rod 51 are inserted into the channel 55. The side wall of the channel 55 is provided with a through hole 56. The through hole 56 corresponds to the groove 53, and the through hole 56 and the groove 53 form a first receiving cavity 57.

[0071] The first steel ball 58 is disposed in the first receiving cavity 57, so that the push rod 51 and the transmission component 54 are connected through the first steel ball 58, and the first steel ball 58 is in contact with the bottom surface of the groove 53, the depth of the groove 53 is less than the radius of the first steel ball 58.

[0072] An elastic sheet 59 covers the end of the through hole 56 and is in contact with the first steel ball 58. When the first steel ball 58 moves out of the groove 53, the elastic sheet 59 can apply an elastic force to the first steel ball 58. In this embodiment, the elastic coefficient of the elastic sheet 59 is not limited, and the user can select elastic sheets 59 with different elastic coefficients as needed.

[0073] Using the above technical solution, by inserting the push rod 51 into the channel 55 on the transmission component 54, the groove 53 on the push rod 51 and the through hole 56 on the transmission component 54 form a first receiving cavity 57. The first steel ball 58 is placed into the first receiving cavity 57, so that the push rod 51 and the transmission component 54 are connected through the first steel ball 58. An elastic sheet 59 is covered at the end of the through hole 56. The elastic sheet 59 is used to prevent the first steel ball 58 from falling out of the groove 53 when the push rod 51 pushes the package normally. When the push rod 51 pushes the cigarette pack 10 normally, the transmission component 5... 4. Power is transmitted to the push rod 51 via the first steel ball 58, so that the push rod 51 and the transmission component 54 operate synchronously. When the feed chute 3 becomes blocked, the push rod 51 experiences resistance greater than a critical value. At this time, the transmission component 54 and the push rod 51 move relative to each other, and the pressure on the first steel ball 58 from the groove 53 increases, thereby overcoming the elastic force of the elastic plate 59 and dislodging from the groove 53. This disconnects the connection between the push rod 51 and the transmission component 54, stopping the output of power to the push rod 51 to prevent the feed push head 52 from breaking and to prevent the cigarette pack 10 from being damaged. The critical value is related to the elastic coefficient of the elastic plate 59, and the user can select elastic plates 59 with different elastic coefficients according to their needs.

[0074] Furthermore, both the push rod 51 and the channel 55 have rectangular cross-sections, which can prevent the push rod 51 from rotating within the channel 55, ensuring that the groove 53 and the through hole 56 are strictly aligned and do not shift. The push rod 51 and the channel 55 are fitted with a clearance, so that when the first steel ball 58 is dislodged from the groove 53 of the push rod 51, the push rod 51 can slide within the channel 55 to cut off the power output from the transmission component 54 to the push rod 51, thereby preventing the feed push head 52 from being broken and the cigarette pack 10 from being crushed.

[0075] According to another specific embodiment of the present invention, the transmission component 54 includes a body 60 and a cover plate 61. The body 60 is provided with a through groove, and the cover plate 61 covers the through groove, forming a channel 55. During the processing, the through groove can be machined on the body 60 first, and then the cover plate 61 can be placed on the through groove to form the channel 55, which improves processing efficiency and facilitates installation. Specifically, the cover plate 61 is connected to the body 60 by bolts. When maintaining and replacing the push rod 51, the cover plate 61 can be removed first, and then the push rod 51 in the through groove can be taken out, reducing the difficulty of maintenance.

[0076] Furthermore, a through hole 56 is provided on the cover plate 61, and the elastic piece 59 is connected to the cover plate 61 by bolts. Specifically, the elastic piece 59 is provided with an installation port, and the cover plate 61 is provided with a threaded hole. The bolt shank passes through the installation port and is threadedly connected to the cover plate 61, and the head of the bolt presses the elastic piece 59 tightly onto the cover plate 61.

[0077] According to another specific embodiment of the present invention, the inner wall of the groove 53 is spherical, and the radius of the sphere is the same as the radius of the first steel ball 58. The sum of the length of the through hole 56 and the depth of the groove 53 is equal to the diameter of the first steel ball 58. When the first steel ball 58 is placed in the groove 53, the surface of the first steel ball 58 can fit against the inner wall of the groove 53, thereby preventing the first steel ball 58 from shaking in the first receiving cavity 57 when the pusher normally pushes the cigarette pack 10. When the resistance experienced by the push rod 51 is greater than a critical value, the pressure of the inner wall of the groove 53 on the first steel ball 58 is in a third direction (e.g., Figures 2 to 4 The component of the force in the Z direction (as shown) is greater than the elastic force exerted by the elastic sheet 59 on the first steel ball 58, allowing the first steel ball 58 to move away from the groove 53 in a third direction. At this time, the inner wall of the groove 53 can guide the first steel ball 58. For example, the ratio of the maximum depth of the groove 53 to the radius of the first steel ball 58 can be 1:3.

[0078] According to another specific embodiment of the present invention, the feeding and pushing mechanism 5 further includes a guiding mechanism 62, such as... Figure 4 As shown, the guide mechanism 62 includes:

[0079] A connecting plate 63 is connected to the main body 60. The connecting plate 63 is provided with a pin 64 extending along a third direction, which is perpendicular to the first direction.

[0080] Bearing 65 is sleeved on pin 64, and the outer circumferential surface of bearing 65 can rotate around the axis of pin 64;

[0081] A guide rail 66 has a guide groove 67 extending along a first direction. A bearing 65 is disposed within the guide groove 67, and the outer peripheral surface of the bearing 65 contacts the side wall of the guide groove 67. The side wall of the guide groove 67 can restrict the movement of the bearing 65 in the vertical and third directions. When the first drive mechanism drives the transmission component 54 to reciprocate along the first direction, the bearing 65 can move with the transmission component 54 within the guide groove 67.

[0082] According to another specific embodiment of the present invention, the first detection unit 68 is a proximity switch. The first detection unit 68 is disposed on the outside of the elastic sheet 59, and the detection end of the first detection unit 68 faces the outer surface of the elastic sheet 59. When the first steel ball 58 is ejected from the first receiving cavity 57, the first steel ball 58 squeezes the elastic sheet 59 and bends it outward. The first detection unit 68 can detect that the distance between it and the outer surface of the elastic sheet 59 has decreased, and sends a detection signal to the control system. After receiving the detection signal, the control system controls the first driving mechanism to stop running.

[0083] According to another specific embodiment of the present invention, reference is made to... Figure 5 and Figure 6 The material feeding mechanism 7 includes:

[0084] The discharge pusher 71 can move along the second direction (e.g., within the discharge trough 4) Figure 1 and Figure 6 (As shown in the Y direction) slides back and forth;

[0085] Connecting rod 72, the first end of which is hinged to the discharge pusher 71;

[0086] The second end of the connecting rod 72 is hinged to the eccentric disk 73, and a plurality of first grooves 74 are provided on the lower end surface of the eccentric disk 73.

[0087] The connecting seat 75 is located below the eccentric plate 73. The upper surface of the connecting seat 75 is provided with a plurality of second grooves 76, and each first groove 74 corresponds to the position of each second groove 76. Each first groove 74 and its corresponding second groove 76 form a second receiving cavity 77.

[0088] Multiple second steel balls 78 are respectively disposed in each second receiving cavity 77, and the connecting seat 75 can drive the eccentric disk 73 to rotate through the second steel balls 78;

[0089] Specifically, the second drive mechanism is motor 83, wherein the feeding motor is used to control the operation of the feeding and pushing mechanism 5, the tilting motor is used to control the operation of the tilting mechanism 2, and motor 83 is used to control the operation of the discharging and pushing mechanism. The motor 83 has an output shaft 82. The connecting seat 75 and the eccentric disk 73 are both sleeved on the output shaft 82 of the second drive mechanism. The connecting seat 75 is fixedly connected to the output shaft 82. The eccentric disk 73 can rotate and slide relative to the output shaft 82. The first grooves 74 are evenly distributed around the bottom of the eccentric disk 73 along the circumference of the output shaft 82. The hinge axis 80 of the second end of the connecting rod 72 is hinged to the eccentric disk 73 and is spaced a certain distance from the axis of the output shaft 82. When the cigarette pack 10 in the discharge trough 4 is blocked, the rotation of the eccentric disk 73 is blocked. At this time, the connecting seat 75 can continue to rotate under the drive of the output shaft 82. This will cause the connecting seat 75 to rotate relative to the eccentric disk 73, so that the first grooves 74 and the second grooves 76 are misaligned. Then the second steel ball 78 is dislodged from the second receiving cavity 77 to stop the power output to the eccentric disk 73.

[0090] By employing the above technical solution, a second steel ball 78 is placed between the eccentric disk 73 and the connecting seat 75. When the cigarette pack 10 in the discharge trough 4 is blocked, the rotation of the eccentric disk 73 is obstructed. At this time, the second steel ball 78 is subjected to the shearing force of the connecting seat 75 and the eccentric disk 73, rotates in the second receiving cavity 77, and comes out of the second receiving cavity 77, thereby disconnecting the connection between the eccentric disk 73 and the connecting seat 75. This cuts off the power supplied from the connecting seat 75 to the eccentric disk 73, stops the movement of the discharge pusher 71, avoids squeezing and deforming the cigarette pack 10 in the discharge trough 4, and prevents damage to the discharge pushing mechanism 7.

[0091] According to another specific embodiment of the present invention, the sum of the depth of the first groove 74 and the depth of the second groove 76 is equal to the diameter of the second steel ball 78, and the ratio of the depth of the first groove 74 to the depth of the second groove 76 is 5:1. For example, the diameter of the steel ball 9 can be 6 mm.

[0092] According to another specific embodiment of the present invention, the diameter of the eccentric disk 73 is larger than the diameter of the connecting seat 75, and the edge of the eccentric disk 73 protrudes beyond the circumferential surface of the connecting seat 75. Along the axial direction of the output shaft 82, the projection of the second end of the connecting rod 72 at the hinge position of the eccentric disk 73 falls outside the connecting seat 75, which facilitates hinged connection of the second end of the connecting rod 72 to the hinge position on the eccentric disk 73.

[0093] Specifically, the second detection unit 79 is a proximity switch, which can be fixed to the housing of the motor 83 via the bracket 84. The second detection unit 79 is located below the eccentric disk 73, with its detection end facing the lower surface of the eccentric disk 73. When the second steel ball 78 is ejected from the second receiving cavity 77, it presses the eccentric disk 73 away from the connecting seat 75, causing a change in the voltage level of the second detection unit 79. The second detection unit 79 can detect an increase in the distance between its detection end and the eccentric disk 73, indicating an increase in the distance between the connecting seat 75 and the eccentric disk 73. At this time, it sends a detection signal to the control system, which can then control the motor 83 to stop running upon receiving the detection signal.

[0094] For example, the detection distance of the second detection unit 79 is 1mm. In this embodiment, the diameter of the second steel ball 78 is 6mm, the depth of the first groove 74 is 5mm, and the depth of the second groove 76 is 1mm. When the rotation of the eccentric disk 73 is blocked, the second steel ball 78 is dislodged from the second groove 76, causing the eccentric disk 73 to move away from the connecting seat 75 along the axial direction of the output shaft 82. The distance between the eccentric disk 73 and the detection end of the second detection unit 79 also increases by 1mm. At this time, the second detection unit 79 sends a detection signal.

[0095] According to another specific embodiment of the present invention, a spring plate 81 is further included. The spring plate 81 is disposed at the end of the output shaft 82. The lower surface of the spring plate 81 contacts the upper surface of the eccentric disk 73, and the spring plate 81 can apply a downward elastic force to the upper surface of the eccentric disk 73, so that the eccentric disk 73 can press against the connecting seat 75, preventing the eccentric disk 73 from separating from the connecting seat 75 during normal operation. When the rotation of the eccentric disk 73 is blocked, the second steel ball 78 is dislodged from the second receiving cavity 77, so that the force on the lower surface of the eccentric disk 73 overcomes the pressure of the spring plate 81 on the upper surface of the eccentric disk 73, thereby generating an upward movement.

[0096] According to another specific embodiment of the present invention, a cooling mechanism is also included, which can use gas or coolant to cool the tobacco packs 10 on the feed trough 3. In this embodiment, the cooling mechanism uses gas for cooling, and the cooling mechanism is provided with an air blowing port for blowing air into the feed trough 3 to lower the temperature of the tobacco packs 10 on the feed trough 3, thereby reducing the adhesion between the tobacco packs 10.

[0097] In practical applications, the feeding trough 3 and the discharging trough 4 often experience situations where there are too many or too few cigarette packs, which can cause equipment downtime or blockages, affecting work efficiency. The inventors discovered that the main reason for this is that the cigarette packs 10 may deform during transport, resulting in a certain amount of compression. When the lengths of the feeding trough 3 and the discharging trough 4 are too long, the number of cigarette packs 10 placed inside them is too large, leading to excessive total compression and thus the phenomenon of too many or too few packs. Based on this, this embodiment sets the length of the feeding trough 3 to be less than or equal to 420 mm, and the length of the discharging trough 4 to be less than or equal to 360 mm. The inventors found that limiting the lengths of the feeding trough 3 and the discharging trough 4 to these ranges significantly reduces or even eliminates the phenomenon of too many or too few packs, effectively preventing anomalies. For example, the length of the feeding trough 3 can be 380-420 mm, and the length of the discharging trough 4 can be 320-360 mm.

[0098] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A cigarette pack flipping device, characterized in that, include: A flipping mechanism is provided with a feed inlet and a discharge outlet, and the flipping mechanism is used to flip the cigarette pack; The feed trough, wherein the discharge end of the feed trough is connected to the feed inlet; The feeding and pushing mechanism is used to push the cigarette packs output from the feeding trough into the flipping mechanism; A discharge chute, wherein the inlet end of the discharge chute is connected to the outlet; The discharge pushing mechanism is used to push the cigarette packs on the discharge trough to the discharge end of the discharge trough; The first driving mechanism is used to drive the feeding and pushing mechanism to operate; The second drive mechanism is used to drive the material discharging and pushing mechanism to operate; The control system is electrically connected to the first drive mechanism and the second drive mechanism; The first detection unit is disposed on the feeding and pushing mechanism. The first detection unit is electrically connected to the control system. When the cigarette pack on the feeding trough is blocked, the first detection unit sends a signal to the control system to stop the first driving mechanism from running. The second detection unit is located on the material feeding mechanism and is electrically connected to the control system. When the cigarette pack on the material feeding trough becomes blocked, the second detection unit sends a signal to the control system to stop the second drive mechanism from running. The material feeding mechanism includes: A discharge pusher, which is capable of reciprocating within the discharge trough along a second direction; A connecting rod, the first end of which is hinged to the discharge pusher; An eccentric disk, the second end of the connecting rod is hinged to the eccentric disk, and a plurality of first grooves are provided on the lower end surface of the eccentric disk; A connecting seat is provided below the eccentric disk. The upper surface of the connecting seat is provided with a plurality of second grooves, and each first groove corresponds to the position of each second groove. Each first groove and its corresponding second groove form a second receiving cavity. Multiple second steel balls are respectively disposed in each of the second receiving cavities, and the connecting seat can drive the eccentric disk to rotate through the second steel balls; Both the connecting seat and the eccentric disk are sleeved on the output shaft of the second drive mechanism. The connecting seat is fixedly connected to the output shaft. The eccentric disk can rotate and slide relative to the output shaft. The hinge axis of the second end of the connecting rod that is hinged to the eccentric disk is spaced a certain distance from the axis of the output shaft. When the rotation of the eccentric disk is blocked, the connecting seat can rotate relative to the eccentric disk, causing the second steel ball to dislodge from the second receiving cavity, thereby stopping the output of power to the eccentric disk.

2. The cigarette pack flipping device as described in claim 1, characterized in that, The feeding and pushing mechanism includes: A push rod, the first end of which is provided with a feeding push head, and the push rod is provided with a groove; A transmission component is connected to the first driving mechanism. The first driving mechanism can drive the transmission component to reciprocate along a first direction. The transmission component is provided with a channel extending along the first direction. The middle part and the second end of the push rod are inserted into the channel. The side wall of the channel is provided with a through hole. The through hole corresponds to the position of the groove, and the through hole and the groove form a first receiving cavity. A first steel ball is disposed in the first receiving cavity, and the first steel ball is in contact with the bottom surface of the groove, the depth of the groove being less than the radius of the first steel ball; An elastic sheet covers the end of the through hole and is in contact with the first steel ball. When the first steel ball moves out of the groove, the elastic sheet can apply an elastic force to the first steel ball.

3. The cigarette pack flipping device as described in claim 2, characterized in that, The transmission component includes a body and a cover plate. The body has a through groove, the cover plate covers the through groove, and the cover plate is connected to the body by bolts. The cover plate and the through groove form the channel. The through hole is provided on the cover plate, and the elastic sheet is connected to the cover plate by bolts.

4. The cigarette pack flipping device as described in claim 3, characterized in that, The inner wall of the groove is spherical, and the radius of the sphere is the same as the radius of the first steel ball. The sum of the length of the through hole and the depth of the groove is equal to the diameter of the first steel ball. The ratio of the maximum depth of the groove to the radius of the first steel ball is 1:

3.

5. The cigarette pack flipping device as described in claim 3, characterized in that, The feeding and pushing mechanism further includes a guiding mechanism, which includes: A connecting plate is connected to the main body, and the connecting plate is provided with a pin extending along a third direction, which is perpendicular to the first direction; The bearing is fitted onto the pin. The guide rail has a guide groove extending in a first direction. The bearing is disposed in the guide groove, and the outer peripheral surface of the bearing is in contact with the side wall of the guide groove. When the first drive mechanism drives the transmission component to reciprocate in the first direction, the bearing can move with the transmission component in the guide groove.

6. The cigarette pack flipping device as described in claim 5, characterized in that, The first detection unit is a proximity switch. The first detection unit is located on the outside of the elastic sheet, and the detection end of the first detection unit faces the outer surface of the elastic sheet. When the first steel ball is released from the first receiving cavity, the first steel ball squeezes the elastic sheet and bends it outward. The first detection unit can detect that the distance between it and the outer surface of the elastic sheet has decreased, and sends a detection signal to the control system. After receiving the detection signal, the control system controls the first drive mechanism to stop running.

7. The cigarette pack flipping device as described in claim 1, characterized in that, The sum of the depth of the first groove and the depth of the second groove is equal to the diameter of the second steel ball, and the ratio of the depth of the first groove to the depth of the second groove is 5:

1.

8. The cigarette pack flipping device as described in claim 1, characterized in that, The diameter of the eccentric disk is larger than the diameter of the connecting seat. The second detection unit is a proximity switch. The second detection unit is located below the eccentric disk, with the detection end of the second detection unit facing the lower surface of the eccentric disk. When the second steel ball is ejected from the second receiving cavity, the second steel ball presses the eccentric disk away from the connecting seat. The second detection unit can detect the increase in the distance between the eccentric disk and the connecting seat and send a detection signal to the control system. The control system can control the second drive mechanism to stop running after receiving the detection signal.

9. The cigarette pack flipping device as described in claim 1, characterized in that, It also includes a spring plate, which is disposed at the end of the output shaft. The lower surface of the spring plate is in contact with the upper surface of the eccentric disk, and the spring plate can apply a downward elastic force to the upper surface of the eccentric disk.

10. The cigarette pack turning device according to any one of claims 1 to 9, characterized in that, It also includes a cooling mechanism with an air blowing port for blowing air into the feed trough to reduce the temperature of the tobacco packs on the feed trough.

11. The cigarette pack turning device according to any one of claims 1 to 9, characterized in that, The length of the feed trough is less than or equal to 420 mm, and the length of the discharge trough is less than or equal to 360 mm.

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