Folding forming mechanism, control method and paper wrapper

Abstract

The application discloses a folding forming mechanism, a control method and a paper wrapper. The folding forming mechanism comprises a driving component; the folding component comprises a rotating shaft assembly, a front folding plate and a rear folding plate, the front folding plate and the rear folding plate are oppositely arranged on the rotating shaft assembly, and the driving component is used for driving the rotating shaft assembly to rotate so as to drive the front folding plate and the rear folding plate to synchronously rotate around the axis of the rotating shaft assembly; and the control device is configured to be capable of setting a plurality of position points according to the conveying path of the packaging box, and calculating the speed curve of servo motion according to different position points, so that the driving component is controlled to act respectively to sequentially fold the side hinges of the front and rear sides of the packaging box. The control device drives the driving component to drive the folding component to make variable speed motion with the main machine, the parameters of the speed curve are adjusted according to different box types, and the front folding plate and the rear folding plate are used to achieve the folding effect of the front and rear folding plates of different box types.

Description

Technical Field

[0001] This application relates to the field of packaging technology, and in particular to a folding forming mechanism, control method, and paper wrapping machine. Background Technology

[0002] In related technologies, to achieve cardboard packaging, paper packaging machines complete the cardboard packaging of materials through several processes, including cardboard feeding, cardboard transportation, material conveying, cardboard folding after combining materials and cardboard, and cardboard box pressing.

[0003] In the cardboard folding process, the following steps are performed in sequence: side forming, tongue flap application, top hinge tapping, side hinge folding, side lower hinge, and side upper hinge. The mechanism used for side hinge folding is called the folding mechanism. The folding mechanism in the relevant technology is limited by its structure and is difficult to adapt to the folding speed under high-speed operation of the equipment. Its working efficiency is low, its stability is poor, and it cannot meet the requirements of high-speed paper packaging machines. Summary of the Invention

[0004] The purpose of this application is to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a folding and forming mechanism that enables simultaneous folding of both sides without stopping the machine during linear transport of a linear paper packaging machine, thereby improving stability and work efficiency.

[0005] This application also proposes a control method for the above-mentioned folding forming mechanism.

[0006] This application also proposes a paper packaging machine that includes the above-mentioned folding and forming mechanism.

[0007] The folding forming mechanism according to the first aspect of this application includes:

[0008] Drive components;

[0009] A folding component includes a pivot assembly, a front folding plate, and a rear folding plate. The front folding plate and the rear folding plate are disposed opposite to each other on the pivot assembly. The driving component is used to drive the pivot assembly to rotate so that the front folding plate and the rear folding plate rotate synchronously around the axis of the pivot assembly.

[0010] The control device is configured to set multiple position points according to the conveying path of the packaging box, and calculate the speed curve of the servo motion according to different position points, thereby controlling the drive component to operate to fold the side hinges on the front and rear sides of the packaging box in sequence.

[0011] The folding forming mechanism according to the first aspect of this application has at least the following beneficial effects: the control device drives the driving component to move the folding component to follow the host machine in a variable speed motion, and adjusts the parameters of the speed curve according to different box types, thereby using the front folding plate and the rear folding plate to achieve the effect of folding the front and rear folds of different box types.

[0012] According to the folding forming mechanism of the first aspect embodiment of this application, at least one of the front folding plate or the rear folding plate includes a fixed end and a folding end. The fixed end is fixedly connected to the rotating shaft assembly. With the fixed end as the base point, the rotating shaft assembly is used to drive the folding end to swing so as to perform a folding action. An arc-shaped surface for transition is provided between the fixed end and the folding end. The arc-shaped surface is recessed inward and used to guide the passing side hinge to the folding end.

[0013] According to the first aspect embodiment of this application, the folding forming mechanism includes a lead screw adjustment mechanism, and at least two folding components are disposed opposite to each other on the lead screw adjustment mechanism. The lead screw adjustment mechanism is used to adjust the position of the folding components so that the two folding components are relatively close to or far apart along the width direction of the packaging box.

[0014] According to the folding forming mechanism of the first aspect embodiment of this application, the screw adjustment mechanism includes a guide rod, a sliding sleeve, an adjusting screw, a first shaft assembly, two threaded sleeves, and a position indicator. The sliding sleeve is connected to the folding component and slidably disposed on the guide rod. The guide rod is used to support and guide the folding component. The adjusting screw is disposed on the first shaft assembly and parallel to the extension direction of the guide rod. The position indicator is disposed on the first shaft assembly and is used to display the distance between the two folding components. Each threaded sleeve is slidably disposed on the adjusting screw and connected to each of the folding components respectively. Each threaded sleeve is respectively configured with a positive thread and a negative thread. The adjusting screw is provided with corresponding positive and negative threads so that the adjusting screw can simultaneously drive the two folding components to move in a direction that is relatively close or relatively far apart.

[0015] According to the folding forming mechanism of the first aspect embodiment of this application, the driving component includes a driving member, a first reducer, a second reducer, a telescopic coupling, a first rotating shaft, a second rotating shaft, a first transmission member, and a second transmission member. The first rotating shaft is disposed at the output end of the first reducer, and the second rotating shaft is disposed at the output end of the second reducer. The driving member is connected to the first reducer, and the first reducer and the second reducer are connected through the telescopic coupling so that the first rotating shaft and the second rotating shaft rotate in opposite directions. The first rotating shaft is connected to one of the rotating shaft assemblies through the first transmission member, and the second rotating shaft is connected to the other rotating shaft assembly through the second transmission member.

[0016] According to the folding forming mechanism of the first aspect embodiment of this application, the folding component includes a fixing ring, a transmission sleeve, a lower seat plate and an upper cover plate. The transmission sleeve is disposed on the rotating shaft assembly, the fixing ring is disposed on the rotating shaft assembly and is used to limit the axial position of the transmission sleeve, the lower seat plate is mounted on the transmission sleeve, and the upper cover plate is disposed on the lower seat plate by means of thread pre-tightening and is used to press the front folding plate and the rear folding plate.

[0017] According to the folding forming mechanism of the first aspect embodiment of this application, the folding component includes a base slider, a second bearing assembly, a spacer assembly, and a stop. The rotating shaft assembly includes a rotating shaft body, a first bearing, and a second bearing. The first bearing and the second bearing are spaced apart within the base slider. The spacer assembly is disposed between the first bearing and the second bearing. The second bearing assembly is disposed on the base slider. One end of the rotating shaft body passes through the second bearing assembly, and the other end of the rotating shaft body passes through the first bearing and the second bearing. The stop is disposed near the other end of the rotating shaft body and is used for axial limiting.

[0018] The control method for the folding forming mechanism according to the second aspect of this application includes the following steps:

[0019] The location points include the origin point, the front hinge entry point, the front hinge folding synchronization point, the rear hinge entry point, and the rear hinge folding synchronization point, which are set sequentially along the conveying path. The front hinge entry point is the point where the curved surface just contacts the front hinge, the front hinge folding synchronization point is the point where the folding is completed and synchronized with the conveying speed of the packaging box, the rear hinge entry point is the point where the curved surface just contacts the rear hinge, and the rear hinge folding synchronization point is the point where the folding is completed and synchronized with the conveying speed of the packaging box.

[0020] The control device calculates the servo motion speed curve based on the five input position point parameters, thereby obtaining a method for controlling the action of the drive component.

[0021] According to the control method for the folding forming mechanism described in the second aspect of this application, the control method further includes a trial run and debugging method before use, comprising the following steps:

[0022] The conveying path is divided into five segments based on two adjacent locations: the front hinge quick entry segment, the front hinge synchronization segment, the front hinge arrival segment, the rear hinge synchronization segment, and the rear hinge arrival segment.

[0023] By using the main unit to jog, the packaging box is transported to the starting point of a certain path and the packaging box is moved along that path;

[0024] The control method for each path segment is determined by jogging the drive component, and the relevant parameters are recorded.

[0025] Adjust the control method for this path based on the above parameters and run a trial run to determine whether the fold position is reasonable.

[0026] If it is not reasonable, repeat the above steps to continue debugging;

[0027] If the above steps are correct, continue with the next path segment until all five path segments have been adjusted.

[0028] A paper packaging machine according to a third aspect of this application includes a folding and forming mechanism as described in a first aspect of this application.

[0029] It is easy to understand that the control method of the folding forming mechanism in the second aspect embodiment of this application and the paper wrapping machine in the third aspect embodiment of this application both have the same technical effects as the folding forming mechanism in the first aspect embodiment, and therefore will not be described again.

[0030] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0031] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0033] Figure 2 This is a cross-sectional view of the folding component in an embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the lead screw adjustment mechanism in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the driving component in an embodiment of this application;

[0036] Figure 5 This is an unfolded view of the packaging box in an embodiment of this application.

[0037] Figure label:

[0038] 100. Drive component; 110. Drive element; 120. First reducer; 130. Second reducer; 140. Coupling; 150. First shaft; 160. Second shaft;

[0039] 200. Folding component; 211. Rotating shaft body; 212. First bearing; 213. Second bearing; 220. Front folding plate; 221. Fixed end; 222. Folding end; 223. Arc-shaped surface; 230. Rear folding plate; 240. Fixing ring; 250. Transmission sleeve; 260. Lower seat plate; 270. Upper cover plate; 280. Base slider; 290. Second shaft seat assembly; 2010. Spacer assembly; 2011. Stop;

[0040] 300, Screw adjustment mechanism; 310, Guide rod; 320, Sliding sleeve; 330, Adjusting screw; 340, First shaft seat assembly; 350, Screw sleeve; 360, Position indicator. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] In the description of this application, "several" means one or more, "more than" means at least two, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0044] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this application after considering the specific content of the technical solution.

[0045] Reference Figures 1 to 5 The folding forming mechanism of the first aspect of this application includes a driving component 100, a folding component 200, and a control device.

[0046] The folding component 200 includes a rotating shaft assembly, a front folding plate 220, and a rear folding plate 230. The front folding plate 220 and the rear folding plate 230 are arranged opposite to each other on the rotating shaft assembly. The driving component 100 drives the rotating shaft assembly to rotate, thereby causing the front folding plate 220 and the rear folding plate 230 to rotate synchronously around the axis of the rotating shaft assembly. The control device is configured to set multiple position points according to the conveying path of the packaging box, and calculate the speed curve of the servo motion according to different position points, thereby controlling the driving component to act separately to fold the side hinges of the front and rear sides of the packaging box sequentially. It can be understood that the control device drives the driving component 100 to drive the folding component 200 to follow the host machine in variable speed motion, adjusting the parameters of the variable speed motion according to different box types, thereby using the front folding plate 220 and the rear folding plate 230 to achieve the effect of folding the front and rear hinges of different box types.

[0047] In some embodiments, the control device includes a motion controller and a servo driver. The motion controller drives the folding servo motor to follow the host machine in variable speed motion through the servo driver. This speed curve can be adjusted by parameters. The parameters can be adjusted according to different box types to make the folding servo motor follow the host machine in different variable speed motion, thereby achieving the effect of folding the front and rear flaps of different box types.

[0048] In some embodiments of this application, at least one of the front folding plate 220 or the rear folding plate 230 includes a fixed end 221 and a folding end 222. The fixed end 221 is fixedly connected to the rotating shaft assembly. With the fixed end 221 as the base point, the rotating shaft assembly is used to drive the folding end 222 to swing, thereby performing a folding action. An arc-shaped surface 223 is provided between the fixed end 221 and the folding end 222 for transition. The arc-shaped surface 223 is recessed inward and used to guide the passing side hinge to the folding end 222. It can be understood that the front folding plate 220 or the rear folding plate 230 quickly moves from the origin point to the point where the rear folding is about to be performed, and then smoothly transitions to the starting point of the rear folding synchronization. Finally, the folding action is performed by rotation. Throughout the process, the arc-shaped surface 223 plays a transitional guiding role, which improves the positional accuracy and precision of the folding action, thereby facilitating the speed increase of the drive component 100 and the main unit and improving processing efficiency.

[0049] In some embodiments, the front folding plate 220 and the rear folding plate 230 have the same structure and use the same operating principle to act on the front and rear hinges of the packaging box to perform folding.

[0050] In some embodiments, the front folding plate 220 and the rear folding plate 230 are mounted on the lower base plate 260 by pressing. When adjusting the front and rear positions of the folds, the locking screws of the upper cover plate 270 need to be loosened, the front folding plate 220 or the rear folding plate 230 needs to be manually moved to align with the folding position, and then the locking screws of the upper cover plate 270 need to be tightened.

[0051] In some embodiments of this application, the folding mechanism includes a screw adjusting mechanism 300. At least two folding components 200 are disposed on the screw adjusting mechanism 300 and are positioned opposite each other. The screw adjusting mechanism 300 is used to adjust the position of the folding components 200 so that the two folding components 200 are relatively close or far apart along the width direction of the packaging box. It is understood that folding mechanisms in related technologies are difficult to adjust the fold width, have low working efficiency and poor stability, and cannot meet the requirements of high-speed paper packaging machines. However, in this application, the screw adjusting mechanism 300 is used to efficiently and accurately adjust the relative positional relationship between the two folding components 200, thereby achieving the effect of properly folding the front and rear flaps of different box types.

[0052] In some embodiments, the drive component 100 is respectively disposed on each folding component 200, and the lead screw adjustment mechanism 300 is mounted on the packaging machine and used to support the folding component 200 and the drive component 100.

[0053] In some embodiments of this application, the lead screw adjustment mechanism 300 includes a guide rod 310, a sliding sleeve 320, an adjusting lead screw 330, a first bearing assembly 340, two threaded sleeves 350, and a position indicator 360. The guide rod 310 is used to support and guide the folding component 200. The adjusting lead screw 330 is disposed on the first bearing assembly 340 and parallel to the extending direction of the guide rod 310. The position indicator 360 is disposed on the first bearing assembly 340 and is used to display the distance between the two folding components 200. Each threaded sleeve 350 is slidably disposed on the adjusting lead screw 330 and connected to each folding component 200 respectively. Each threaded sleeve 350 is respectively configured with a positive thread and a negative thread. The adjusting lead screw 330 is provided with corresponding positive and negative threads so that the adjusting lead screw 330 can simultaneously drive the two folding components 200 to move in a direction that is relatively close or relatively far apart. Understandably, the guide rod 310 is fixedly installed inside the side plates of the paper packaging machine by screws to support the slider assembly; the copper sleeve is installed on both sides of the base slider 280 by bearing adhesive to support the slider assembly; the adjusting screw 330 is installed inside the bearing seat to adjust the left and right width of the slider assembly; the adjusting screw 330 has steps on both sides to hold the bearing seat on both sides and prevent movement along the central axis of the bearing seat; the bearing seat is fixedly installed on the outside of the side plates of the paper packaging machine by screws to support the rotation of the adjusting screw 330; the screw sleeve 350 is fixedly installed on one side of the base slider 280 by screws, with the left and right base slider 280 screw sleeves 350 having left and right threads respectively, and the installation side facing outwards; the position indicator 360 is fixedly installed on the outside of one side plate of the paper packaging machine by a fixing plate and screws, allowing the operator to intuitively adjust the width of the distance between the two slider assemblies.

[0054] In some embodiments, the adjusting screw 330 has positive and negative threads on both sides; when it is necessary to adjust the width of the distance between the two slider assemblies, a wrench is used to turn the adjusting screw 330 on one side, thereby driving the positive and negative threaded sleeves 350 on both sides to move inward or outward along the central axis of the adjusting screw 330, thereby driving the two slider assemblies to adjust the width.

[0055] In some embodiments of this application, the drive component 100 includes a drive member 110, a first reducer 120, a second reducer 130, a coupling 140, a first rotating shaft 150, a second rotating shaft 160, a first transmission member, and a second transmission member. The first rotating shaft 150 is disposed at the output end of the first reducer 120, and the second rotating shaft 160 is disposed at the output end of the second reducer 130. The drive member 110 is connected to the first reducer 120, and the first reducer 120 and the second reducer 130 are connected through the coupling 140 so that the first rotating shaft 150 and the second rotating shaft 160 rotate in opposite directions. The first rotating shaft 150 is connected to one of the rotating shaft assemblies through the first transmission member, and the second rotating shaft 160 is connected to the other rotating shaft assembly through the second transmission member. Understandably, when the motor rotates, one side of the reducer rotates, which drives the other side of the reducer to rotate through the telescopic universal coupling 140. The output shafts of the two reducers are in opposite directions, thus driving the connected rotating shaft to rotate in opposite directions. The normal direction of the rotating shaft rotation is along the material output direction of the paper packaging machine, thereby driving the transmission sleeve 250 to rotate, which in turn drives the front folding plate 220 and the rear folding plate 230 to rotate. When the box passes by, the front folding plate 220 rotates from the outer side of the front side of the box to the inner side, thereby performing a folding action on the front side hinge, and then rotates along the normal direction of rotation to move out of the outer side of the box; the rear folding plate 230 rotates from the outer side of the rear side of the box to the inner side, thereby performing a folding action on the rear side hinge, and then rotates along the normal direction of rotation to move out of the outer side of the box.

[0056] In some embodiments, a connecting flange is fixedly installed under the base slider 280 by screws, for connecting the motor drive assembly and the slider assemblies on both sides; a reducer is fixedly installed under the connecting flange by screws, for reducing the motor speed and increasing torque; the reducer is connected to the shaft via a keyway, for transmitting torque to the shaft; the motor is fixedly installed on one side of the reducer by screws, for driving the motor drive assembly; a shaft head is fixedly installed under the shaft by a threaded fit, and a screw is locked on the shaft head, for the sensor to sense the origin of the shaft rotation; a photoelectric bracket is fixedly installed under the reducer by screws, for mounting the sensor; a telescopic universal coupling 140 is fixedly installed on the output shafts of the reducers on both sides via a keyway and locking screws, for synchronous transmission connection of the reducers on both sides; the telescopic universal coupling 140 is two-sectioned and can extend and retract axially along the spline of the central rod, thereby adapting to the adjustment of the slider assembly width.

[0057] In some embodiments of this application, the folding component 200 includes a retaining ring 240, a transmission sleeve 250, a lower seat plate 260, and an upper cover plate 270. The transmission sleeve 250 is disposed on the rotating shaft assembly, the retaining ring 240 is disposed on the rotating shaft assembly and is used to limit the axial position of the transmission sleeve 250, the lower seat plate 260 is mounted on the transmission sleeve 250, and the upper cover plate 270 is disposed on the lower seat plate 260 by means of threaded pre-tightening and is used to press the front folding plate 220 and the rear folding plate 230. In some embodiments of this application, the folding component 200 includes a base slider 280, a second bearing assembly 290, a spacer assembly 2010, and a stop 2011. The rotating shaft assembly includes a rotating shaft body 211, a first bearing 212, and a second bearing 213. The first bearing 212 and the second bearing 213 are spaced apart within the base slider 280. The spacer assembly 2010 is disposed between the first bearing 212 and the second bearing 213. The second bearing assembly 290 is disposed on the base slider 280. One end of the rotating shaft body 211 passes through the second bearing assembly 290, and the other end of the rotating shaft body 211 passes through the first bearing 212 and the second bearing 213. The stop 2011 is disposed near the other end of the rotating shaft body 211 and is used for axial limiting.

[0058] Understandably, the rotating shaft body 211 is locked in the base slider 280 by the first bearing 212 and the second bearing 213 and the round nut, and can rotate around the central axis of the first bearing 212 and the second bearing 213; the upper cover plate 270 is fixedly installed on the lower seat plate 260 by screws, and is used to press the front folding plate 220 and the rear folding plate 230; the front folding plate 220 and the rear folding plate 230 are placed on the lower seat plate 260 in sequence, and the front folding plate 220 and the rear folding plate 230 of the left and right slider assemblies are installed symmetrically on the left and right; the front folding plate 220 and the rear folding plate 230 are also fixed in the lower seat plate 260. The sum of the thicknesses is slightly greater than the clamping allowance of the upper cover plate 270 and the lower seat plate 260, and can be used for clamping; the front folding plate 220 is used to fold the front side hinge of the carton, and the rear folding plate 230 is used to fold the rear side hinge of the carton; the lower seat plate 260 is fixedly installed on the transmission sleeve 250 by screws; the transmission sleeve 250 is installed on the rotating shaft through a flat keyway, and the rotating shaft has a long keyway, so the transmission sleeve 250 can be adjusted up and down a certain distance along the central axis of the rotating shaft, and then fixedly installed on the rotating shaft by screws installed through the side threaded holes; the fixing ring 240 passes through... The bearing is fixedly mounted on the rotating shaft by screws, with its mounting position abutting against the lower plane of the transmission sleeve 250 to assist in supporting the transmission sleeve 250; the bearing pressure plate is fixedly mounted on the bearing seat by screws to assist in fixing the bearing; the bearing is installed in the bearing hole above the bearing seat to support the rotation of the rotating shaft; the bearing seat is fixedly mounted on the base slider 280 by screws through the long through hole to install the first bearing; the first bearing 212 and the second bearing 213 are installed in the base slider 280 to support the rotation of the rotating shaft; the inner spacer is installed below the rotating shaft, with its mounting position relative to the first bearing. Between the first bearing 212 and the second bearing 213, the outer spacer is installed in the base slider 280, and the installation position is between the first bearing 212 and the second bearing 213 to separate the first bearing 212 and the second bearing 213; the round nut, together with the small spacer and the stop washer, is fixedly installed under the rotating shaft by threaded engagement to restrict the rotating shaft from moving upward along the central axis of the first bearing 212 and the second bearing 213; the base slider 280 is installed on the lead screw adjustment mechanism 300 through the sliding sleeve 320 and the screw sleeve 350.

[0059] Reference Figures 1 to 5 The control method for the folding forming mechanism according to the second aspect of this application can be the control method for the folding forming mechanism according to the first aspect of this application. The control method for the folding forming mechanism includes the following steps:

[0060] The location points include the origin point, the front hinge entry point, the front hinge folding synchronization point, the rear hinge entry point, and the rear hinge folding synchronization point, which are set sequentially along the conveying path; the front hinge entry point refers to the point where the arc surface 223 just contacts the front hinge, the front hinge folding synchronization point refers to the point where the folding is completed and synchronized with the conveying speed of the packaging box, the rear hinge entry point refers to the point where the arc surface 223 just contacts the rear hinge, and the rear hinge folding synchronization point refers to the point where the folding is completed and synchronized with the conveying speed of the packaging box;

[0061] The control device calculates the servo motion speed curve based on the five input position point parameters, thereby obtaining a method for controlling the action of the drive component.

[0062] Understandably, this application uses rotating front folding plate 220 and rear folding plate 230 for folding. The front folding plate 220 and rear folding plate 230 need to be as close as possible to the side hinges for folding. To achieve this close contact, the motor needs to rotate at a certain speed, allowing the front folding plate 220 and rear folding plate 230 to perform the folding action smoothly. This application uses a five-point position parameter input scheme to fit the motion curve, thereby achieving the motor motion curve for different materials corresponding to the carton.

[0063] In some embodiments of this application, the control method further includes a trial run and debugging method before use, comprising the following steps:

[0064] The conveying path is divided into five segments based on two adjacent locations: the front hinge quick entry segment, the front hinge synchronization segment, the front hinge arrival segment, the rear hinge synchronization segment, and the rear hinge arrival segment.

[0065] By using the main unit to jog, the packaging box is transported to the starting point of a certain path and the packaging box is moved along that path;

[0066] The control method for each path segment is determined by the jog control drive component 100, and the relevant parameters are recorded.

[0067] Adjust the control method for this path based on the above parameters and run a trial run to determine whether the fold position is reasonable.

[0068] If it is not reasonable, repeat the above steps to continue debugging;

[0069] If the above steps are correct, continue with the next path segment until all five path segments have been adjusted.

[0070] It should be noted that the control device utilizes the PLC's internal calculations. The five position points are manually input by technicians during debugging and are saved in the PLC. The PLC then calculates the servo's motion / speed curve. During debugging, technicians manually obtain the position parameters (which are the position parameters returned by the servo motor and can be obtained from the PLC) and input them into the PLC. The PLC has pre-designed motion equations for the five positions. By simply inputting the position parameters for the corresponding positions, the speed curve of the servo that satisfies the motion can be calculated, thus achieving precise page turning.

[0071] In some embodiments, "fast back-fold entry" refers to the folding servo rapidly moving from its origin to the point where a back fold is about to occur. "Back-fold synchronization segment" refers to the folding servo smoothly transitioning from the fast segment to the starting point of the back-fold synchronization. "Back-fold completion" refers to the folding servo moving to the ending point of the back-fold synchronization at the same speed as the host servo. "Forward fold synchronization" refers to the folding servo smoothly transitioning from the back-fold synchronization segment to the starting point of the forward fold synchronization. "Forward fold completion" refers to the folding servo moving to the ending point of the forward fold synchronization at the same speed as the host servo.

[0072] Understandably, the debugging process is as follows: Technicians place a cardboard box inside the front folding plate 220 and the rear folding plate 230, adjusting them to maintain a certain distance from the side hinges; technicians remove the cardboard box and operate the entire paper wrapping machine to retract, causing the front folding plate 220 and the rear folding plate 230 to return; technicians place the cardboard box on the front conveyor belt and jog the equipment to sequentially meet the requirements of the original supplementary reference regarding the rear folding quick cut, rear folding synchronization segment, and rear folding positioning. The front fold synchronization and front fold positioning describe the carton position. Simultaneously, the front fold plate 220 and the rear fold plate 230 are adjusted sequentially by jogging the folding forming mechanism motor to ensure they meet the side hinge requirements. The parameters are then input into the main control board. The positions of the front fold plate 220 and the rear fold plate 230 can be adjusted as needed. After the five position parameters are input, the main control board can calculate the motion curve of the folding forming mechanism motor. Technicians can repeat the above steps to debug until the motion curve of the folding forming mechanism is correct.

[0073] Reference Figures 1 to 5 The paper packaging machine of the third aspect of this application includes the folding and forming mechanism of the first aspect of this application. Through the motor-driven return folding device, it can simultaneously complete the side folding action of the front and rear sides of the paper packaging machine in the high-speed working state, and includes a folding width adjustment function to improve stability and work efficiency.

[0074] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A folding forming mechanism, characterized in that, include: Drive components; A folding component includes a pivot assembly, a front folding plate, and a rear folding plate. The front folding plate and the rear folding plate are disposed opposite to each other on the pivot assembly. The driving component is used to drive the pivot assembly to rotate so that the front folding plate and the rear folding plate rotate synchronously around the axis of the pivot assembly. The control device is configured to set multiple position points according to the conveying path of the packaging box, and calculate the speed curve of the servo motion according to different position points, thereby controlling the drive component to move to fold the side hinges on the front and rear sides of the packaging box in sequence. Both the front folding plate and the rear folding plate include a fixed end and a folding end. The fixed end is fixedly connected to the pivot assembly. With the fixed end as the base point, the pivot assembly is used to drive the folding end to swing, thereby performing a folding action. An arc-shaped surface is provided between the fixed end and the folding end for transition. The arc-shaped surface is recessed inward and used to guide the passing side hinge to the folding end.

2. The folding forming mechanism according to claim 1, characterized in that: The folding forming mechanism includes a lead screw adjustment mechanism. At least two folding components are provided and are arranged opposite to each other on the lead screw adjustment mechanism. The lead screw adjustment mechanism is used to adjust the position of the folding components so that the two folding components are relatively close to or far apart along the width direction of the packaging box.

3. The folding forming mechanism according to claim 2, characterized in that: The lead screw adjustment mechanism includes a guide rod, a sliding sleeve, an adjusting lead screw, a first bearing assembly, two threaded sleeves, and a position indicator. The sliding sleeve is connected to the folding component and slidably mounted on the guide rod. The guide rod supports and guides the folding component. The adjusting lead screw is mounted on the first bearing assembly and parallel to the extension direction of the guide rod. The position indicator is mounted on the first bearing assembly and displays the distance between the two folding components. Each threaded sleeve is slidably mounted on the adjusting lead screw and connected to each folding component. Each threaded sleeve is configured with a positive thread and a negative thread. The adjusting lead screw has corresponding positive and negative threads so that the adjusting lead screw can simultaneously drive the two folding components to move in directions that are relatively close or relatively far apart.

4. The folding forming mechanism according to claim 2, characterized in that: The driving component includes a driving member, a first reducer, a second reducer, a telescopic coupling, a first rotating shaft, a second rotating shaft, a first transmission member, and a second transmission member. The first rotating shaft is located at the output end of the first reducer, and the second rotating shaft is located at the output end of the second reducer. The driving member is connected to the first reducer, and the first reducer and the second reducer are connected through the telescopic coupling so that the first rotating shaft and the second rotating shaft rotate in opposite directions. The first rotating shaft is connected to one of the rotating shaft assemblies through the first transmission member, and the second rotating shaft is connected to the other rotating shaft assembly through the second transmission member.

5. The folding forming mechanism according to claim 1, characterized in that: The folding component includes a retaining ring, a transmission sleeve, a lower seat plate, and an upper cover plate. The transmission sleeve is disposed on the rotating shaft assembly, the retaining ring is disposed on the rotating shaft assembly and is used to limit the axial position of the transmission sleeve, the lower seat plate is mounted on the transmission sleeve, and the upper cover plate is disposed on the lower seat plate by means of threaded pre-tightening and is used to press the front folding plate and the rear folding plate together.

6. The folding forming mechanism according to claim 5, characterized in that: The folding component includes a base slider, a second bearing assembly, a spacer assembly, and a stop. The rotating shaft assembly includes a rotating shaft body, a first bearing, and a second bearing. The first bearing and the second bearing are spaced apart within the base slider. The spacer assembly is disposed between the first bearing and the second bearing. The second bearing assembly is disposed on the base slider. One end of the rotating shaft body passes through the second bearing assembly, and the other end of the rotating shaft body passes through the first bearing and the second bearing. The stop is disposed near the other end of the rotating shaft body and is used for axial limiting.

7. A control method for the folding forming mechanism as described in claim 1, characterized in that, Includes the following steps: The location points include the origin point, the front hinge entry point, the front hinge folding synchronization point, the rear hinge entry point, and the rear hinge folding synchronization point, which are set sequentially along the conveying path. The front hinge entry point refers to the point where the curved surface just touches the front hinge; the front hinge folding synchronization point refers to the point where the folding is completed and synchronized with the speed of the packaging box conveyor; the rear hinge entry point refers to the point where the curved surface just touches the rear hinge; the rear hinge folding synchronization point refers to the point where the folding is completed and synchronized with the speed of the packaging box conveyor. The control device calculates the servo motion speed curve based on the five input position point parameters, thereby obtaining a method for controlling the action of the drive component.

8. The control method for the folding forming mechanism according to claim 7, characterized in that: The control method also includes a trial run and debugging method before use, comprising the following steps: The conveying path is divided into five segments based on two adjacent locations: the front hinge quick entry segment, the front hinge synchronization segment, the front hinge arrival segment, the rear hinge synchronization segment, and the rear hinge arrival segment. By using the main unit to jog, the packaging box is transported to the starting point of a certain path and the packaging box is moved along that path; The control method for each path segment is determined by jogging the drive component, and the relevant parameters are recorded. Adjust the control method for this path based on the above parameters and run a trial run to determine whether the fold position is reasonable. If it is not reasonable, repeat the above steps to continue debugging; If the above steps are correct, continue with the next path segment until all five path segments have been adjusted.

9. A paper wrapping machine, characterized in that, include: The folding forming mechanism as described in any one of claims 1 to 6.

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