A stepwise conveying mechanism

Abstract

The utility model discloses a kind of step-by-step conveying mechanisms, it is related to printed matter quality detection technical field, including pedestal one, two guide rails respectively supporting the both ends of cigarette box body are installed on the pedestal one;Still including the mounting plate extending along the guide rail axis direction, the mounting plate upper surface has the push plate evenly spaced arrangement along its axis direction, and power assembly that can drive mounting plate upper, lower, front, rear movement is also installed on pedestal one.The utility model can make the cigarette box of sequentially pushing with fixed pitch to convey forward, so that subsequent detection equipment can effectively detect around cigarette box, so that the quality of cigarette box is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of printed matter quality inspection technology, and more specifically, to a stepping conveyor mechanism. Background Technology

[0002] A fully open cigarette pack consists of a box body and a lid. One side of the lid is rotatably connected to one side of the box body. Flipping the lid allows the box to be opened or closed, thus opening or closing the cigarette pack. The quality inspection of cigarette label printing involves the high standards required for cigarette label printing quality in the tobacco industry. As a key packaging element of tobacco products, cigarette labels not only need to meet aesthetic and clear visual requirements but also ensure accurate reproduction of patterns, text, and colors. With the continuous development of printing technology, traditional manual inspection methods are no longer sufficient to meet the demands of high precision and efficiency in large-scale production. Therefore, automated inspection devices based on image processing and computer vision technology have emerged. These devices capture cigarette label images in real time and perform intelligent analysis, enabling rapid detection of various defects in the printing process, such as color difference, registration error, and blurring, ensuring that the printing quality of each cigarette label meets industry standards.

[0003] With changing market demands and new designs, the printing quality of cigarette labels directly impacts consumers' brand awareness and product image. Existing fully open cigarette boxes often require internal and external inspections during production. To ensure inspection of all four sides of each box, a certain gap must be maintained between adjacent boxes during transport. However, on cigarette box inspection production lines, boxes are typically pushed forward sequentially initially. Therefore, to meet the subsequent external inspection requirements, a stepping conveyor mechanism that allows cigarette boxes to be transported at fixed intervals is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a stepping conveyor mechanism that enables sequentially pushed cigarette boxes to be conveyed forward at fixed intervals, allowing subsequent testing equipment to effectively inspect the four sides of the cigarette boxes, thereby ensuring the quality of the cigarette boxes.

[0005] To achieve the purpose of this utility model, the technical solution adopted is as follows: a stepping conveying mechanism, including a base, on which two guide rails are installed to support the two ends of the cigarette box body respectively; it also includes a mounting plate extending along the axis of the guide rails, the upper surface of the mounting plate having push plates evenly spaced along its axis, and a power component that can drive the mounting plate to move up and down, forward and backward is also installed on the base.

[0006] Furthermore, at least one of the guide rails is provided with rollers arranged sequentially along its axial direction to abut against the cigarette box body.

[0007] Furthermore, an installation strip extending along its axial direction is installed on the outer side of the guide rail. Multiple fixing seats are evenly spaced along its axial direction on the installation strip. An extension arm extending from the guide rail is installed on the fixing seat, and multiple rollers are installed at the extension ends of the multiple extension arms.

[0008] Furthermore, the fixed base is also equipped with a vertically upward extending screw, an extension arm is rotatably sleeved on the screw, and a nut is also installed on the screw to fasten the extension arm.

[0009] Furthermore, the rear ends of the plurality of extension arms are also hinged together with a fixing rod, and a tension spring inclined relative to the fixing rod is connected between the fixing rod and the fixing seat.

[0010] Furthermore, the power assembly is located below the track. The power assembly includes a Z-direction linear joint mounted on a base, and an X-direction linear joint is mounted on the Z-direction linear joint. A connecting plate is mounted on the X-direction linear joint, and the mounting plate is fixed to the upper end of the connecting plate.

[0011] Furthermore, the base also supports a swingable connecting rod and a drive structure for driving the connecting rod to swing, and a connecting rod 2 is hinged between the extension end of the connecting rod and the connecting plate.

[0012] Furthermore, the drive structure includes a drive motor mounted on a base and a rotating shaft rotatably supported on the base. The output shaft of the drive motor is connected to the rotating shaft, and a cam is mounted on the rotating shaft. A cam bearing follower that contacts the wheel surface of the cam is also mounted on the connecting rod.

[0013] Furthermore, the drive structure also includes a swingable tripod on the base, and one corner of the tripod slides up and down while swinging on the connecting plate.

[0014] Furthermore, the drive structure also includes a swing arm 1 that can swing on the base 1, and a cam 2 is also installed on the rotating shaft. One end of the swing arm 1 can swing on the cam 2 and move up and down at the same time. The other end of the swing arm 1 is hinged to the tripod through the connecting rod 3, and the hinge point between the connecting rod 3 and the tripod and the connection point between the connecting rod 2 and the connecting plate are respectively located on both sides of the swing point of the tripod. The convex surface of the cam 1 corresponds to the convex surface of the cam 2 or the concave surface of the cam 2.

[0015] The beneficial effects of this utility model are: In this invention, the guide rail on the base allows cigarette boxes conveyed by the previous conveying mechanism to advance sequentially. Push plates, evenly spaced along the axis of the mounting plate, are installed on the mounting plate. When the mounting plate moves upward, the push plates on the mounting plate insert between two adjacent cigarette boxes being pushed sequentially on the guide rail, and move forward in coordination with the mounting plate, thus pushing the cigarette boxes on the guide rail forward. Simultaneously, when the mounting plate moves downward, the push plates pushing the cigarette boxes retract from between two adjacent cigarette boxes, and move backward, so that the push plates on the mounting plate align with the gap between the next cigarette box and its adjacent cigarette box. Thus, after the mounting plate moves upward again, the push plates on the mounting plate insert between the next cigarette box and its adjacent cigarette box. This process repeats, allowing the cigarette boxes to advance sequentially on the guide rail at fixed intervals. This facilitates effective inspection of the cigarette boxes by subsequent testing equipment, ensuring the quality of the cigarette boxes. Attached Figure Description

[0016] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0017] Figure 1 This is a structural diagram of the stepping conveyor mechanism provided by this utility model; Figure 2 This is a structural diagram of the power assembly of the stepper conveyor mechanism; Figure 3 yes Figure 1 A magnified view of part A in the middle.

[0018] The attached diagram shows the markings and corresponding component names: 100. Base 1; 101. Guide rail; 102. Mounting strip; 103. Fixed seat; 104. Extension arm 1; 105. Screw; 106. Nut; 107. Roller; 108. Tension spring; 109. Drive motor 1; 110. Rotary shaft; 111. Cam 1; 112. Cam 2; 113. Link 1; 114. Cam bearing follower; 115. Link 2; 116. X-direction linear pair; 117. Z-direction linear pair 1; 118. Connecting plate; 119. Mounting plate; 120. Push plate; 121. Tripod; 122. Swing arm 1; 123. Link 3. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0020] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a stepping conveying mechanism, including a base 100, a worktable on the base 100, and two guide rails 101 mounted on the worktable of the base 100. The axial direction of the two guide rails 101 is consistent with the conveying direction of the cigarette box. The two guide rails 101 are arranged at intervals along the width direction of the base 100, and there is a hollow shape between the two guide rails 101. When the cigarette box is placed, the two guide rails 101 support the two ends of the cigarette box body respectively.

[0022] To prevent the cigarette box from shifting in the width direction of the base 100 when the two guide rails 101 support both ends of the cigarette box, L-shaped strips are used for the guide rails 101. The horizontal parts of both guide rails 101 extend towards the middle of the base 100. When the cigarette box moves along the two guide rails 101, the horizontal parts of the two guide rails 101 support both ends of the cigarette box, while the vertical parts of the two guide rails 101 restrict the sides of the cigarette box. This prevents the cigarette box from shifting in the width direction of the base 100 when placed on the two guide rails 101. To ensure that the cigarette box can move along the two guide rails 101, rollers 107 are evenly spaced along their axial direction on the outer side of one of the guide rails 101. The axis of the rollers 107 is aligned with the vertical direction, and the distance between two adjacent rollers 107 is no greater than the width of the cigarette box. After the rollers 107 are installed, their surfaces abut against the cigarette box. By having the roller 107 abut against the surface of the cigarette box, the cigarette box, after being conveyed by the conveying device and entering the two guide rails 101 together, can smoothly move along the guide rails 101.

[0023] In this invention, when the roller 107 on the outer side of one of the guide rails 101 cannot allow the cigarette box to move smoothly along the guide rail 101, rollers 107 can be installed on the outer sides of both guide rails 101. Furthermore, to ensure the cigarette box can move smoothly along the guide rail 101, the rollers 107 can be arranged to cover the entire axis of the guide rail 101 during installation.

[0024] In this utility model, although the two guide rails 101 are fixedly installed and the rollers 107 have no power source, after the cigarette box enters the two guide rails 101, even though there is no power source on the guide rails 101 to drive the cigarette box forward, the input ends of the two guide rails 101 will be connected to the front conveying device, which has a power source. Therefore, after the cigarette box enters the two guide rails 101, it will also move forward on the guide rails 101 due to the push of the cigarette box sent out by the previous conveying device.

[0025] To achieve the step-by-step pushing of the cigarette box, this utility model also includes a mounting plate 119. The length direction of the mounting plate 119 is consistent with the length direction of the guide rail 101. In order for the mounting plate 119 to push the cigarette box during its forward movement, a plurality of push plates 120 are installed on the upper surface of the mounting plate 119, which are evenly spaced along its axial direction. In order for the push plates 120 on the mounting plate 119 to push the next cigarette box after pushing the previous one, the mounting plate 119 in this utility model can move forward, backward, up, and down on the base 100. The base 100 is also equipped with a power component that can drive the mounting plate 119 to move up, down, forward, and backward. Through the drive of the power component, the mounting plate 119 in this utility model can move in the axial direction of the guide rail 101 and in the height direction of the base 100.

[0026] In order to ensure that the cigarette box that has moved forward on the guide rail 101 after being pushed forward by the push plate 120 on the mounting plate 119 can smoothly enter the subsequent conveying equipment, the mounting plate 119 should be arranged such that when the mounting plate 119 moves forward, the push plate 120 on the mounting plate 119 near the output end of the guide rail 101 extends beyond the output end of the guide rail 101.

[0027] In this utility model, when the mounting plate 119 needs to move the cigarette boxes on the guide rail 101 forward, the mounting plate 119 rises, and the first push plate 120 on the mounting plate 119 near the input end of the guide rail 101 is inserted between the first and second cigarette boxes; the mounting plate 119 moves forward, and at the same time the mounting plate 119 moves forward, the push plate 120 pushes the first cigarette box on the guide rail 101 forward; when the push plate 120 pushes the cigarette box forward along the guide rail 101 to a fixed distance, the mounting plate 119 falls, and the first push plate 120 on the mounting plate 119 near the input end of the guide rail 101 exits between the first and second cigarette boxes; the mounting plate 119 retracts, and when the mounting plate 119 retracts to its original position, the mounting plate 119 rises, and the first push plate 120 on the mounting plate 119 near the input end of the guide rail 101 is inserted between the second and third cigarette boxes; the mounting plate 119 moves forward, and this process is repeated, so that the cigarette boxes on the guide rail move forward sequentially at a fixed distance.

[0028] In this invention, since the mounting plate 119 needs to move not only up and down but also back and forth, it can be directly installed under the worktable of the machine base 100 or directly between the two guide rails 101. When the mounting plate 119 is installed under the worktable of the machine base 100, to prevent displacement along the width direction of the machine base 100 during the displacement of the mounting plate 119 along the axial direction of the guide rails 101, two sets of limiting blocks can be installed on the lower surface of the worktable of the machine base 100. The two sets of limiting blocks are respectively arranged on both sides of the mounting plate 119, and multiple limiting blocks in each set are spaced apart along the length direction of the mounting plate 119. When the mounting plate 119 is installed between the two guide rails 101, the inner side of the horizontal part of the guide rail 101 can restrict the two sides of the mounting plate 119 to prevent displacement in the width direction of the machine base 100.

[0029] To facilitate the installation of the roller 107, an installation strip 102 can be installed on the outside of the guide rail 101. The installation strip 102 is fixed to the base 100, and the axial direction of the installation strip 102 is consistent with the axial direction of the base 100. Multiple fixing seats 103 are fixedly installed on the upper surface of the installation strip 102. The multiple fixing seats 103 are evenly spaced along the axial direction of the installation strip 102, and the distance between two adjacent fixing seats 103 is the same as the distance between two adjacent cigarette boxes pushed by the stepping push structure. The spacing is equal, and each fixed seat 103 is equipped with an extension arm 104 extending inside the guide rail 101. Multiple rollers 107 are respectively installed at the extension ends of multiple extension arms 104. The rollers 107 can rotate on the extension arms 104, and the central axis of the rollers 107 is consistent with the vertical direction. There is a certain gap between the lower surface of the rollers 107 and the vertical part of the guide rail 101. When the cigarette box moves forward along the guide rail 101, one end of the cigarette box contacts the wheel surface of the rollers 107.

[0030] In this invention, to facilitate the adjustment of the position of the roller 107, a vertically extending screw 105 can be fixed on the upper surface of the fixed base 103, and a through hole matching the diameter of the screw 105 can be opened at the rear end of the extension arm 104. During installation, the rear end of the extension arm 104 is inserted into the screw 105. As the extension arm 104 swings, the displacement of the roller 107 in the width direction and the length direction of the base 100 changes, the distance between the roller 107 and the cigarette box is adjusted when the cigarette box moves along the guide rail 101, thereby facilitating the subsequent adjustment of the production line to detect cigarette boxes of different sizes. To ensure that the extension arm 104 remains fixed after adjustment on the screw 105, a nut 106 is also tightened on the screw 105. When the nut 106 is tightened on the screw 105, it clamps the rear end of the extension arm between the nut 106 and the fixed seat 103, preventing the extension arm 104 from swinging on the fixed seat 103, thus keeping the position of the roller 107 on the extension arm 104 fixed. When it is necessary to adjust the position of the roller 107, the nut 106 is loosened, and then the extension arm 104 is rotated to a fixed angle. As the extension arm 104 rotates, it drives the roller 107 to move synchronously, thus adjusting the position of the roller 107. After the roller 107 moves to the fixed position, the nut 106 is tightened again.

[0031] Since the wheel surface of roller 107 needs to abut against the cigarette box that is moving along guide rail 101, and the end face of the cigarette box mates with the vertical part of guide rail 101 during the movement of the cigarette box along guide rail 101, in order to enable the two guide rails 101 to meet the needs of conveying cigarette boxes of different sizes, the installation position of the two guide rails 101 on the machine base 100 can be adjusted along the width direction of the machine base 100 as required. The adjustment method is to directly loosen the bolts fixing the guide rail 101, and then fix it directly on the machine base 100 with bolts after the position of the guide rail 101 is adjusted. After the two guide rails 101 are adjusted, the position of roller 107 is adjusted to ensure that the wheel surface of roller 107 abuts against the side of the cigarette box conveyed along guide rail 101.

[0032] Since there are multiple rollers 107 evenly spaced along the axis of the guide rail 101, in order to adjust multiple rollers 107 at one time and to keep the positions of multiple rollers 107 consistent during the adjustment process, a fixed rod can be installed at the rear end of multiple extension arms 104. The rear end of the extension arm 104 can rotate on the fixed rod, so that when one extension arm swings, the extension arm 104 will drive the fixed rod to move synchronously. When the fixed rod moves, it will drive the other extension arms 104 to swing synchronously, so that the positions of the rollers 107 located on the multiple extension arms 104 change synchronously, and the multiple rollers 107 can be adjusted synchronously. To ensure greater stability of the multiple rollers 107 after adjustment and the extension arms 104 after fixing, a tension spring 108 can be connected to the fixing rod, with the other end of the tension spring 108 connected to the fixing base 103. The tension spring 108 itself applies a tension force to the fixing rod, which is transmitted to each extension arm 104 through the fixing rod, causing a traction force on the rear end of each extension arm 104, thus making the extension arms more stable after being locked with bolts. To ensure that the fixing rod is subjected to forces along the axis and width of the machine base 100 when the tension spring 108 pulls on it, the two ends of the tension spring 108 should not be on the same width of the machine base 100 during installation, so that the tension spring 108 is arranged at an angle on the machine base 100; preferably, after installation, the axis of the tension spring 108 forms a V-shape with the axis of the extension arm 104.

[0033] To drive the mounting plate 119 to move back and forth and up and down, a power assembly can be installed below the worktable of the base 100. Specifically, the power assembly includes two Z-direction extending rails fixedly mounted on the lower surface of the worktable on the base 100 or on the main structure of the base 100. Each Z-direction extending rail has a Z-direction sliding slider mounted on it. The Z-direction extending rails and the Z-direction sliding sliders together form a Z-direction linear pair 117. Multiple sliders in the Z-direction linear pair 117 are mounted on a base plate. Two X-direction extending rails are fixedly mounted on the base plate. Each track is equipped with a slider that slides in the X direction. The X-direction extended track and the slider that slides in the X direction together form an X-direction linear pair 116. Multiple sliders in the X-direction linear pair 116 are equipped with a connecting plate 118. A mounting plate 119 is fixed to the upper end of the connecting plate 118. Meanwhile, a swingable connecting rod 113 is mounted on the base 100 through a bearing seat. The base 100 is also equipped with a drive structure for driving the connecting rod 113 to swing. The end of the connecting rod 113 away from the drive structure is also hinged to a connecting rod 2 115. The extended end of the connecting rod 2 115 is hinged to the connecting plate 118. During the swinging process of the drive structure, the extension end of the drive rod 113 undergoes displacement in the X-axis and Z-axis directions. Therefore, when the drive rod 113 swings, it will cause the connecting rod 2 115 to swing on the connecting plate 118, thereby causing the connecting plate 118 to move in the Z-axis direction. During the displacement of the connecting plate 118 in the Z-axis direction, the Z-axis linear pair 117 guides the movement of the connecting plate 118.

[0034] In this invention, to drive the swing of the connecting rod 113, the drive structure includes a drive motor 109 mounted on a base 100. The installation height of the drive motor 109 is lower than the installation height of the connecting plate 118. A rotatable shaft 110 is also rotatably supported on the base 100 via a bearing seat. A drive sprocket is mounted at the output end of the drive motor 109, and a driven sprocket is mounted on the shaft 110. A chain is wound around both the drive sprocket and the driven sprocket, so that when the drive motor 109 rotates, it can drive the shaft 110 to rotate synchronously via the chain. Meanwhile, a cam 111 is also installed on the rotating shaft 110. When the connecting rod 113 is installed, one end of the connecting rod 113 is rotatably installed on the machine base 100 through the bearing seat, and the other end of the connecting rod 113 is rotatably connected to the connecting plate 118 through the connecting rod 2 115. The height of the end of the connecting rod 113 away from the connecting plate 118 is lower than the height of the end of the connecting rod 113 connected to the connecting rod 2 115. A rotatable cam bearing follower 114 is also installed in the middle of the connecting rod 113. The wheel surface of the cam bearing follower 114 is in contact with the wheel surface of the cam 111. By cooperating with the cam 111 and the cam bearing follower 114, the drive motor 109 drives the rotating shaft 110 to rotate. The cam rotates synchronously with the rotating shaft 110. When the cam 111 rotates, the wheel surface of the cam 111 pushes the cam bearing follower 114 to move up and down, causing the connecting rod 113 to swing on the machine base 100. During the swinging process, the extension end of the connecting rod 113 drives the connecting plate 118 to move in the Z-axis direction through the connecting rod 2 115.

[0035] To drive the connecting plate 118 to move in the X-axis direction, the drive structure also includes a tripod 121 disposed below the connecting plate 118. The first corner of the tripod 121 is rotatably mounted on the base 100 via a bearing seat, allowing the tripod 121 to swing on the base 100. At the same time, a wheel is installed at the second corner of the tripod 121, and a groove extending vertically is provided on the connecting plate 118. The width of the groove is adapted to the diameter of the wheel, and the wheel is installed in the groove, so that the second corner of the tripod 121 can move up and down on the connecting plate 118 and swing relative to the connecting plate 118. The drive structure also includes a swing arm 122 that can swing on the base 100. One end of the swing arm 122 faces the rotating shaft 110, and the other end faces the tripod 121. When swinging, one end of the swing arm 122 moves upward, and the other end moves downward. Simultaneously, a cam 112 is mounted on the rotating shaft 110. When the rotating shaft 110 rotates, the cam 112 rotates synchronously. The cam 112 has a guide groove on its side, and the trajectory of the guide groove is cam-shaped. The shorter section of the guide groove from the central axis of the rotating shaft 110 is the concave section of the guide groove, which is the concave surface of the second cam 112. The longer section of the guide groove from the central axis of the rotating shaft 110 is the convex section of the guide groove, which is the convex surface of the second cam 112. A rotatable wheel is installed at one end of the swing arm 122 near the second cam 112. The wheel is inserted into the guide groove of the second cam 112. The other end of the swing arm 122 is hinged to the connecting rod 3 123. The extension end of the connecting rod 3 123 is rotatably connected to the third corner point of the tripod 121.

[0036] In this utility model, when the tripod 121 is installed, the hypotenuse of the tripod 121 is located on the side of the tripod 121 away from the pivot 110. At this time, when the tripod 121 swings at the output end of the guide rail 101, the second corner point of the tripod 121 moves downward and forward, and the third corner point of the tripod 121 moves downward and backward. Since the second corner point of the tripod 121 can slide up and down relative to the connecting plate 118, the second corner point of the tripod 121 only drives the connecting plate 118 to move forward when the tripod 121 swings at the output end of the guide rail 101. Since the third corner point of the tripod 121 is hinged to the swing arm 122 through the connecting rod 123, the third corner point of the tripod 121 only drives the end of the swing arm 122 near the tripod 121 to swing downward, and the end of the swing arm 122 near the pivot 110 to swing upward. Since the connecting plate 118 needs to continue driving the mounting plate 119 forward after driving it upward, when the hypotenuse of the tripod 121 is located on the side of the tripod 121 away from the rotating shaft 110, and the end of the first swing arm 122 near the rotating shaft 110 is below the rotating shaft 110, the second cam 112 rotates. When the end of the first swing arm 122 near the rotating shaft 110 corresponds to the concave section of the guide groove, it rises; when the end of the first swing arm 122 near the rotating shaft 110 corresponds to the convex section of the guide groove, it falls. Therefore, at this time, the convex surface on the first cam 111 corresponds to the concave section of the guide groove, that is, the first cam 111... The convex surface on cam 11 corresponds to the concave surface of cam 112. When the hypotenuse of tripod 121 is located on the side of tripod 121 away from the pivot 110, and the end of swing arm 122 near the pivot 110 is above the pivot 110, cam 112 rotates. When the end of swing arm 122 near the pivot 110 corresponds to the protruding section of the guide groove, it rises. When the end of swing arm 122 near the pivot 110 corresponds to the concave section of the guide groove, it falls. Therefore, at this time, the convex surface on cam 111 corresponds to the protruding section of the guide groove, that is, the convex surface on cam 111 corresponds to the convex surface of cam 112.

[0037] In this utility model, when the tripod 121 is installed, its hypotenuse can be positioned on the side facing the pivot 110. In this case, when the tripod 121 swings at the output end of the guide rail 101, the second corner point of the tripod 121 moves upward and forward, and the third corner point moves upward and backward. Since the second corner point of the tripod 121 can slide up and down relative to the connecting plate 118, the second corner point of the tripod 121 only drives the connecting plate 118 to move forward when the tripod 121 swings at the output end of the guide rail 101. Since the third corner point of the tripod 121 is hinged to the swing arm 122 via the connecting rod 123, the third corner point of the tripod 121 only drives the end of the swing arm 122 near the tripod 121 to swing upward, and the end of the swing arm 122 near the pivot 110 to swing downward. Since the connecting plate 118 needs to continue driving the mounting plate 119 forward after driving it upward, when the hypotenuse of the tripod 121 is located on the side of the tripod 121 facing the rotating shaft 110, and the end of the first swing arm 122 near the rotating shaft 110 is below the rotating shaft 110, the second cam 112 rotates. When the end of the first swing arm 122 near the rotating shaft 110 corresponds to the protruding section of the guide groove, it descends; when the end of the first swing arm 122 near the rotating shaft 110 corresponds to the concave section of the guide groove, it rises. Therefore, at this time, the convex surface on the first cam 111 corresponds to the protruding section of the guide groove, that is, the first cam 111... The convex surface on 11 corresponds to the convex surface of cam 112. When the hypotenuse of tripod 121 is located on the side of tripod 121 facing the pivot 110, and the end of swing arm 122 near the pivot 110 is above the pivot 110, cam 112 rotates. When the end of swing arm 122 near the pivot 110 corresponds to the concave section of the guide groove, it descends. When the end of swing arm 122 near the pivot 110 corresponds to the convex section of the guide groove, it rises. Therefore, at this time, the convex surface on cam 111 corresponds to the convex section of the guide groove, that is, the convex surface on cam 111 corresponds to the convex surface of cam 112.

[0038] That is, in this utility model, if the mounting plate 119 can move forward after rising, the convex surface of cam 111 can be selected to correspond to the convex surface of cam 112, or the convex surface of cam 111 can be selected to correspond to the concave surface of cam 112, depending on the orientation of the tripod 121 during installation and the installation position of the swing arm 122.

[0039] In this utility model, since the cigarette boxes entering the guide rail 101 are pushed forward sequentially, there is no gap between two adjacent cigarette boxes. Therefore, in order to accommodate the insertion of the first push plate 120 at the input end of the mounting plate 119 between two adjacent cigarette boxes, the base 100 also needs to be equipped with a preliminary pushing structure that can press against the cigarette box and push it to move back and forth. When the first push plate 120 at the input end of the mounting plate 119 needs to be inserted between two adjacent cigarette boxes, the preliminary pushing structure presses against the cigarette box and pushes it forward, so that the pressed cigarette box maintains a certain distance from the cigarette box behind it. After the preliminary pushing structure pushes the cigarette box forward, the preliminary pushing structure releases the pressure on the cigarette box and retreats to its original position. To ensure that the initial pushing structure can align with the next cigarette box to be pushed after it loosens its grip on the cigarette box and retracts to its original position, a vertically movable blocking structure can be provided on the initial pushing structure. This blocking structure extends between the two guide rails 101 when the mounting plate 119 moves upward, positioning itself between the cigarette box being pushed forward by the push plate 120 and the cigarette box being pushed forward by the initial pushing structure. Simultaneously, as the initial pushing structure loosens its grip on the cigarette box and retracts to its original position, it moves backward, allowing the blocking structure to push the cigarette boxes sequentially pushed forward on the guide rails 101 backward, ensuring that the initial pushing structure aligns with the next cigarette box to be pushed after it loosens its grip on the cigarette box and retracts to its original position. Furthermore, to prevent the blocking structure from obstructing the cigarette box and affecting the pushing of the cigarette box by the push plate on the mounting plate 119, the blocking structure retracts between the two guide rails 101 when the mounting plate 119 lowers the push plate 120. Since the initial push structure and the box-blocking structure are both designed to cooperate with the operation of the stepping conveyor mechanism, rather than to convey cigarette boxes at fixed intervals, the initial push structure and the box-blocking structure will not be described in detail here.

[0040] In this utility model, when cigarette boxes entering the guide rail 101 need to be conveyed at fixed intervals, after a certain gap exists between the cigarette boxes pushed forward by the initial pushing structure and the next cigarette box, the drive motor 109 drives the rotating shaft 110 to rotate. The cam 111 and cam 112 on the rotating shaft 110 rotate synchronously. Through the cooperation between the convex surface of cam 111 and the wheel surface of the cam bearing follower 114, the convex surface of cam 111 pushes the cam bearing follower 114 to move upward, thereby causing the connecting rod 113 to swing upward. At the same time as the connecting rod 113 swings upward, the connecting plate 118 moves upward along the Z-direction linear joint 117 through the connecting rod 115. At the same time as the connecting plate 118 moves upward, it drives the mounting plate 119 and the push plate 120 to move upward synchronously, so that the mounting plate 119 moves upward. The first push plate 120 at the input end of 119 is inserted between the cigarette box pushed forward by the initial pushing structure and the next cigarette box. Since the convex surface of cam 111 corresponds to the concave surface on cam 212, at the moment the mounting plate 119 moves upward, cam 212 drives the swing arm 122 to swing upward, causing the end of the swing arm 122 connected to the connecting rod 3123 to swing downward. The connecting rod 3123 drives the tripod 121 to swing the output end of the guide rail 101. The second corner point on the tripod 121 drives the connecting plate 118 to move forward along the X-direction linear joint 116. At the same time as the connecting plate 118 moves forward, it drives the mounting plate 119 and the push plate 120 to move forward synchronously, so that the first push plate 120 at the input end of the mounting plate 119 pushes the cigarette box pushed forward by the initial pushing structure to move forward.

[0041] After the mounting plate 119 advances to a fixed distance, cam 111 rotates until its concave surface engages with the wheel surface of the cam bearing follower 114, and cam 111 loses its upward pushing force on the cam bearing follower 114. At the same time, since the concave surface of cam 111 corresponds to the convex surface on cam 112, cam 112 causes the swing arm 122 to swing downward, causing the end of the swing arm 122 connected to the connecting rod 123 to swing upward. The connecting rod 123 causes the tripod 121 to swing toward the side of the rotating shaft 110. The second corner point on the tripod 121 causes the connecting plate 118 to move backward along the X-direction linear pair 116, and causes the connecting plate 118 to move downward along the Z-direction linear pair 117. During the downward movement of the connecting plate 118 along the Z-direction linear pair 117, the connecting rod 118 drives the connecting rod 113 to swing downward through the connecting rod 115. The first push plate 120 at the input end of the mounting plate 119 exits between the first and second cigarette boxes.

[0042] Repeat the above steps to convey the cigarette boxes on the guide rail 101 forward in sequence at fixed intervals.

[0043] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A stepping conveyor mechanism, characterized in that, The device includes a base (100) on which two guide rails (101) are mounted to support the two ends of the cigarette box body respectively; it also includes a mounting plate (119) extending along the axial direction of the guide rails (101), the upper surface of the mounting plate (119) having push plates (120) evenly spaced along its axial direction, and the base (100) is also equipped with a power component that can drive the mounting plate (119) to move up, down, forward and backward.

2. The stepping conveyor mechanism according to claim 1, characterized in that, One of the guide rails (101) has rollers (107) arranged sequentially along its axial direction on its outer side to abut against the cigarette box body.

3. The stepping conveyor mechanism according to claim 2, characterized in that, The guide rail (101) is provided with an installation strip (102) extending along its axis. Multiple fixing seats (103) are evenly spaced along its axis on the installation strip (102). Extension arms (104) extending from the guide rail (101) are provided on the fixing seats (103), and multiple rollers (107) are installed at the extension ends of the multiple extension arms (104).

4. The stepping conveyor mechanism according to claim 3, characterized in that, The fixed base (103) is also equipped with a vertically upward extending screw (105), an extension arm (104) is rotatably sleeved on the screw (105), and a nut (106) that can fasten the extension arm (104) is also installed on the screw (105).

5. The stepping conveyor mechanism according to claim 4, characterized in that, The rear ends of the plurality of extension arms (104) are also hinged together with a fixing rod, and a tension spring (108) inclined relative to the fixing rod is connected between the fixing rod and the fixing seat (103).

6. The stepping conveyor mechanism according to claim 1, characterized in that, The power assembly is located below the guide rail (101). The power assembly includes a Z-direction linear pair (117) mounted on the base (100), and an X-direction linear pair (116) is mounted on the Z-direction linear pair (117). A connecting plate (118) is mounted on the X-direction linear pair (116), and a mounting plate (119) is fixed to the upper end of the connecting plate (118).

7. The stepping conveyor mechanism according to claim 6, characterized in that, The base (100) also supports a swingable connecting rod (113) and a drive structure for driving the connecting rod (113) to swing. The extension end of the connecting rod (113) is hinged to the connecting plate (118) with a connecting rod (115).

8. The stepping conveyor mechanism according to claim 7, characterized in that, The drive structure includes a drive motor (109) mounted on a base (100) and a rotating shaft (110) rotatably supported on the base (100). The output shaft of the drive motor (109) is connected to the rotating shaft (110) in a transmission connection. A cam (111) is mounted on the rotating shaft (110), and a cam bearing follower (114) that contacts the wheel surface of the cam (111) is also mounted on the connecting rod (113).

9. The stepping conveyor mechanism according to claim 8, characterized in that, The drive structure also includes a tripod (121) that can swing on the base (100), and one corner of the tripod (121) slides up and down while swinging on the connecting plate (118).

10. The stepping conveyor mechanism according to claim 9, characterized in that, The drive structure also includes a swing arm (122) that can swing on the base (100), and a cam (112) is also installed on the rotating shaft (110). One end of the swing arm (122) can swing on the cam (112) and move up and down at the same time. The other end of the swing arm (122) is hinged to the tripod (121) through the connecting rod (123). The hinge point of the connecting rod (123) and the tripod (121) and the connection point of the connecting rod (115) and the connecting plate (118) are respectively located on both sides of the swing point of the tripod (121). The convex surface of the cam (111) corresponds to the convex surface of the cam (112) or the concave surface of the cam (112).

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