Carton inner liner folding installation

CN224928620UActive Publication Date: 2026-11-03GUANGDONG LANSHUO PRECISION TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202522626401.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-11
Publication Date
2026-11-03
Estimated Expiration
2035-12-11

AI Technical Summary

Technical Problem

Existing cardboard box liner installation equipment suffers from low automation, insufficient forming precision, unstable gluing effect, complex structure, poor adaptability, inability to achieve multi-station continuous operation, and limited production efficiency.

Method used

A paper box lining folding and installation device was designed, which includes a lining edge extrusion molding structure, a paper box pre-forming mechanism, a paper box extrusion mechanism, a lining corner glue application module, and a lining edge smoothing module. Through the coordinated work of these modules, automated folding, positioning, glue application, and smoothing are achieved, which can adapt to paper boxes of different specifications and support multi-station continuous operation.

Benefits of technology

It improves molding accuracy and consistency, enhances bonding strength and aesthetics, increases production efficiency and equipment adaptability, and enables continuous multi-station operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224928620U_ABST
    Figure CN224928620U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of paper box lining folding installation equipment, including frame and the paper box transmission plate in the middle of frame inside workbench, the paper box transmission plate is flush with frame inside workbench, the side of square frame table is also fixedly connected by bolt with the side of frame close to paper box transmission plate, the inside workbench of frame, paper box transmission plate and square frame table place same horizontal plane mainly for the platform of paper box processing support, two lining edge extrusion forming structures are equipped on the inside workbench of frame, the middle of two lining edge extrusion forming structures is also equipped with paper box preforming mechanism for preliminary folding paper box, the bottom of paper box transmission plate is equipped with paper box positioner structure for the preformed paper box is transported one by one.The paper box lining folding installation equipment, by setting lining edge extrusion forming structure, paper box preforming mechanism and paper box extrusion mechanism, the automatic folding and positioning of paper box lining are realized, and the forming precision and consistency are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of paper box processing technology, specifically to a paper box lining folding and installation device. Background Technology

[0002] Cardboard boxes, as a common packaging container, are widely used in the food, pharmaceutical, and cosmetic industries. To improve the structural strength and protective performance of cardboard boxes, an inner lining is usually installed inside to reinforce the box's strength and rigidity. Traditional lining installation relies heavily on manual folding and gluing, which suffers from low efficiency, poor consistency, and high labor intensity.

[0003] Publication number CN201910472361.9 discloses a paper box liner folding and installation device, including a frame, worktable panel, pushing mechanism, folding mechanism, unloading mechanism, and production line mechanism. The pushing mechanism pushes cardboard to the folding mechanism for liner forming, and the unloading mechanism transfers the formed liner into the paper box. While this device achieves a certain degree of automation, it still has some shortcomings, such as insufficient liner folding and positioning accuracy affecting finished product quality, lack of an integrated gluing and smoothing structure leading to unstable gluing results, complex equipment structure, inconvenient adjustment, poor adaptability, inability to achieve multi-station continuous operation, and limited production efficiency. Therefore, this paper proposes a highly integrated, easy-to-operate, high-precision liner folding and installation device suitable for various paper box specifications to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a paper box lining folding and installation device, which has the advantages of high automation, good forming accuracy, strong adaptability, and simple operation, and solves the problems of single function, low efficiency, and poor consistency of existing equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a paper box lining folding and installation device, including a frame and a paper box transfer plate in the middle of the workbench inside the frame. The paper box transfer plate is flush with the workbench inside the frame, and its side is integrally formed with the square frame platform. One side of the square frame platform is also fixedly connected to the side of the frame near the paper box transfer plate by bolts. The workbench inside the frame, the paper box transfer plate, and the square frame platform are on the same horizontal plane and are mainly used as a platform for conveying paper box processing support.

[0006] The frame has two edge extrusion molding structures on its internal worktable for folding the cardboard box edge lining;

[0007] The two liner extrusion molding structures are further provided with a paper box preforming mechanism for initially folding the paper box, and the bottom of the paper box transfer plate is provided with a paper box positioning structure for conveying the preformed paper boxes one by one.

[0008] The top of the workbench inside the frame is also provided with a paper box extrusion mechanism for extruding and deforming the paper box. A tray is provided between the end of the paper box extrusion mechanism and the top of the paper box preforming mechanism to support the cardboard that has not yet been processed into the inner lining. A corner of the workbench inside the frame is also provided with a corner glue applicator for applying glue to the pre-processed paper box inner lining. The top of the paper box transfer plate is also provided with two paper box mold modules for limiting the pre-processed paper boxes.

[0009] A lining scraping module is provided on the top of the square frame platform and on the side away from the frame, which is mainly used to press and adhere the lining of the cardboard box after gluing.

[0010] Furthermore, the square frame platform is provided with a material conveying mechanism for transporting finished paper boxes on the side away from the frame. The top of the paper box transfer plate is provided with two clearance holes, which facilitates the equipment to push the pre-formed paper boxes on the top of the paper box transfer plate from left to right to other processing steps.

[0011] Furthermore, the liner extrusion molding structure includes a second linear module, an adjustment knob, and two liner extrusion rollers. The second linear module is set in the middle of the top of the workbench inside the frame via an arched frame. The adjustment knob is set on both sides of the second linear module, and the two adjustment knobs are respectively connected to the transmission threaded rods at both ends of the second linear module. The adjustment function is achieved by rotating the adjustment knob to brake the rotation of the transmission threaded rods.

[0012] The two side liner extrusion rollers are each composed of a mounting frame, a propulsion cylinder, and an extrusion roller. The mounting frame is threadedly connected to the transmission threaded rod on the linear module two. The distance between the two side liner extrusion rollers is adjusted by rotating the adjustment knob. The propulsion cylinder is used to push the extrusion rollers to move laterally and horizontally to extrude the carton side liner.

[0013] Furthermore, the pre-forming mechanism for the paper box includes two support frames, a translation frame, a paper box forming roller frame, and a linear module four. The two support frames are arranged in a row, and the top is also provided with a linear module four for driving the translation frame to move horizontally. The paper box forming roller frame is a square frame, and rollers are respectively provided on the two shorter inner frames. One side of the outer frame of one side of the paper box forming roller frame is also connected to the translation frame for adjusting the position of the paper box forming roller frame.

[0014] Furthermore, the paper box adjustment structure includes two mounting brackets, two sets of actuating plates, a linear module three, a lifting frame, two fixed supports, and two cylinders three. The two fixed supports are fixedly installed at the bottom of the paper box transfer plate. The lifting frame is installed between the two fixed supports, and the connection between the lifting frame and the fixed supports is connected by a limiting kit. Two cylinders four are also provided between the top of the lifting frame and the paper box transfer plate. The output end of the cylinders four is connected to the top of the paper box transfer plate, and the bottom of the cylinders four is installed on the top of the lifting frame. The cylinders four are mainly used to lift the entire lifting frame up and down on the two fixed supports.

[0015] The linear module three is installed at the bottom of the lifting frame. Both mounting frames are movably installed at the bottom of the linear module three. The two cylinders three are respectively installed at the top of the two mounting frames. The two sets of actuating plates are respectively installed at the output ends of the two cylinders three through connecting parts, and are used to push the actuating plates to move up and down to push the paper box transfer plate to rise and fall and move to the next process.

[0016] Furthermore, the cylinder three includes a horizontal cylinder and a vertical cylinder, wherein the horizontal cylinder is used to push the actuating plate to move horizontally, while the vertical cylinder is used to push the actuating plate to move vertically. The top of the paper box transfer plate is also provided with a strip hole for the actuating plate to move the paper box.

[0017] Furthermore, the paper box extrusion mechanism includes a rotary motor, a square channel, a rack, a strip plate, a fixed plate, and an inner liner pressure head. A frame top plate is installed on the top of the frame. The square channel is vertically installed between the frame top plate and the top of the tray. The strip plate is movably installed on one side of the inner wall of the square channel via a slide groove and a slider, and its bottom extends through to the bottom of the square channel. The inner liner pressure head is fixedly connected to the end of the strip plate located at the bottom of the square channel. The fixed plate is fitted onto the outer wall of the square channel, and the top of the fixed plate is also fixedly connected to the bottom of the frame top plate. The rotary motor is fixedly installed on one side of the fixed plate, and the rotary motor passes through the fixed plate and the square channel and extends into the interior of the square channel.

[0018] Furthermore, the output end of the rotary motor is equipped with a gear that meshes with the rack to drive the lifting and lowering of the strip plate inside the square channel.

[0019] Furthermore, the corner glue application module includes a robotic arm and a glue applicator. The robotic arm is a two-section extension arm set inside the frame, and the glue applicator is suspended at the end of the robotic arm. The glue applicator's glue application tube is connected to an external storage tank for supplying glue.

[0020] Furthermore, the paper box mold module includes a mold frame, four cylinders, and corner clamps. The mold frame is installed on the top of the frame workbench, and the four cylinders are respectively installed at the top four corners of the mold frame. The output ends of the four cylinders are also provided with corner clamps, and the corner clamps face the paper box at a vertical angle to stabilize the mold frame.

[0021] Furthermore, the lining scraping module includes a linear module one, a cylinder one, and a scraper. The linear module one is located on the top of the square frame platform near the discharge conveying mechanism. The cylinder one is horizontally slidable on the side of the linear module one via a sliding plate. The scraper is installed at the output end of the cylinder one.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. This paper box liner folding and installation equipment, through the setting of a liner extrusion molding structure, a paper box pre-forming mechanism and a paper box extrusion mechanism, realizes the automatic folding and positioning of the paper box liner, thereby improving the molding accuracy and consistency.

[0024] 2. This cardboard box lining folding and installation equipment, through the cooperation of the lining corner glue application module and the lining edge smoothing module, realizes automatic glue application and smoothing of the inner lining corners, enhancing the bonding strength and aesthetics.

[0025] 3. The adoption of a cardboard box adjustment structure and cardboard box mold module enables continuous operation at multiple workstations, improving production efficiency and equipment adaptability. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the paper box lining folding and installation device of this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the cardboard box lining folding and installation equipment frame of this utility model;

[0028] Figure 3 This is a bottom view of the internal structure of the cardboard box lining folding and installation equipment frame of this utility model;

[0029] Figure 4 This is a partial structural schematic diagram of the paper box extrusion mechanism of the paper box lining folding and mounting device of this utility model;

[0030] Figure 5 This is a partially exploded view of the interior of the cardboard box lining folding and installation equipment frame of this utility model.

[0031] Figure 6 This is a schematic diagram of the paper box adjustment structure of the paper box lining folding and installation device of this utility model;

[0032] Figure 7This is a schematic diagram of the paper box adjustment structure of the paper box lining folding and installation device of this utility model from another perspective.

[0033] Figure 8 This is a schematic diagram of the paper box mold module of the paper box lining folding and installation equipment of this utility model;

[0034] Figure 9 This is a schematic diagram of the corner gluing module of the paper box lining folding and installation equipment of this utility model;

[0035] Figure 10 This utility model relates to a paper box lining folding and installation device. Figure 3 A magnified structural diagram of A in the middle;

[0036] Figure 11 This is a structural schematic diagram of the edge-scraping module of the paper box lining folding and installation equipment of this utility model.

[0037] In the diagram: 1. Frame; 100. Frame top plate; 2. Material conveying mechanism; 3. Square frame platform; 4. Liner smoothing module; 5. Liner corner gluing module; 6. Paper box mold module; 7. Paper box transfer plate; 8. Paper box extrusion mechanism; 81. Rotary motor; 82. Square channel; 83. Rack; 84. Strip plate; 85. Fixing plate; 86. Press head; 9. Liner extrusion forming structure; 91. Linear module two; 92. Adjustment knob; 93. Liner extrusion roller shaft; 10. Paper box pre-forming mechanism; 101. Support frame; 102. Translation frame; 103. Paper box forming roller shaft frame; 104. Linear module four; 11. Paper box positioning structure; 111. Mounting frame; 112. Actuating plate; 113. Linear module three; 114. Upgrading frame; 115. Fixed bracket; 116. Cylinder three; 12. Pallet. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Please see Figure 1-11This embodiment of a paper box lining folding and installation device includes a frame 1 and a paper box transfer plate 7 in the middle of the internal workbench of the frame 1. The paper box transfer plate 7 is flush with the internal workbench of the frame 1 and its side is integrally formed with the square frame platform 3. One side of the square frame platform 3 is also fixedly connected to the side of the frame 1 near the paper box transfer plate 7 by bolts. The internal workbench of the frame 1, the paper box transfer plate 7 and the square frame platform 3 are on the same horizontal plane, forming a reference platform for paper box conveying and processing. Two edge extrusion molding structures 9 are provided on the internal workbench of the frame 1 for folding paper box edge linings.

[0040] The two liner extrusion molding structures 9 are also provided with a paper box preforming mechanism 10 for initially folding the paper box in the middle, and a paper box adjustment structure 11 for conveying the preformed paper boxes one by one is provided at the bottom of the paper box transfer plate 7.

[0041] The top of the workbench inside the frame 1 is also equipped with a paper box extrusion mechanism 8 for extruding and deforming the paper box. A tray 12 is provided between the end of the paper box extrusion mechanism 8 and the top of the paper box preforming mechanism 10 for holding the cardboard that has not yet been processed into the inner lining. A corner of the workbench inside the frame 1 is also equipped with a corner glue applicator 5 for applying glue to the pre-processed paper box inner lining. The top of the paper box transfer plate 7 is also equipped with two paper box mold modules 6 for limiting the pre-processed paper boxes.

[0042] A lining scraping module 4 is provided on the top of the square frame platform 3 and on the side away from the frame 1, which is mainly used to press and stick the lining of the cardboard box after the glue is applied.

[0043] Among them, the square frame platform 3 is provided with a material discharge and transportation mechanism 2 for conveying finished paper boxes on the side away from the frame 1. The top of the paper box transfer plate 7 is provided with two clearance holes, which facilitates the equipment to push the pre-formed paper boxes on the top of the paper box transfer plate 7 from left to right to other processing steps.

[0044] It should be noted that the material discharge and conveying mechanism 2 is located on the side of the square frame platform 3 away from the frame 1. Its function is to automatically and continuously convey the finished cardboard boxes that have completed all processing steps out of the equipment, usually using belt conveyor or roller conveyor, to achieve connection with subsequent packaging or stacking processes.

[0045] In this embodiment, the lining extrusion molding structure 9 is set on the workbench of the frame 1. Its core function is to perform precise mechanical folding of the side lining of the carton. It includes a straight module 2 91, an adjustment knob 92, and two lining extrusion rollers 93. The straight module 2 91 is set in the middle of the top of the workbench inside the frame 1 through an arched frame. The adjustment knob 92 is set on both sides of the straight module 2 91, and the two adjustment knobs 92 are respectively connected to the transmission threaded rods at both ends of the straight module 2 91. By rotating the adjustment knob 92, the rotation of the transmission threaded rod is braked to achieve the adjustment function.

[0046] The two side liner pressing roller shafts 93 are respectively composed of a mounting frame, a push cylinder and a pressing roller shaft. The mounting frame is threadedly connected to the transmission threaded rod on the linear module 2 91. The distance between the two side liner pressing roller shafts 93 can be adjusted by rotating the adjustment knob 92, so as to adapt to paper boxes of different widths. During operation, the push cylinder pushes the pressing roller shaft to move horizontally. The rolling and pressure of the roller shaft flattens and folds the upright paper box side liner to a predetermined angle, so as to achieve rapid and regular forming of the side liner.

[0047] Specifically, the linear module 2 91 is fixed in the middle of the worktable by an arched frame. The adjusting knob 92 is connected to the transmission threaded rod, and the distance between the two side liner pressing roller shafts 93 can be adjusted by manual rotation to accommodate cartons of different widths. The side liner pressing roller shaft 93 consists of a mounting frame, a push cylinder, and a pressing roller shaft. During operation, the push cylinder pushes the pressing roller shaft to move horizontally laterally. The rolling and pressure of the roller shaft flattens and folds the upright carton side liner to a predetermined angle, achieving rapid and neat forming of the side liner.

[0048] In this embodiment, the pre-forming mechanism 10 is located between the two liner extrusion forming structures 9. Its function is to pre-shape the paper box before the liner is extruded, laying the foundation for subsequent precise folding. The pre-forming mechanism 10 includes two support frames 101, a translation frame 102, a paper box forming roller frame 103, and a linear module 104. The two support frames 101 are arranged in a row, and the top is also provided with a linear module 104 for driving the translation frame 102 to move horizontally. The paper box forming roller frame 103 is a square frame. At the same time, the two shorter inner frames are respectively provided with rollers, and one side of the outer frame of the paper box forming roller frame 103 is also connected to the translation frame 102 for adjusting the position of the paper box forming roller frame 103.

[0049] It should be noted that the rollers installed inside the paper box forming roller frame 103 apply a uniform force by rolling in contact with the side wall of the paper box when the mechanism is pressed down, thereby completing the initial erection or angle pre-folding of the four walls of the paper box.

[0050] Specifically, the linear module 104 drives the translation frame 102 to move horizontally, thereby adjusting the position of the paper box forming roller frame 103 so that it can be accurately aligned with the paper box.

[0051] In this embodiment, the carton adjustment structure 11 is located at the bottom of the carton transfer plate 7. This mechanism is key to achieving automated assembly line operation, responsible for the precise transfer of cartons between multiple processing stations. The carton adjustment structure 11 also includes two mounting brackets 111, two sets of actuating plates 112, a linear module 113, a lifting frame 114, two fixed supports 115, and two cylinders 116. The cylinders 114 drive the lifting frame 114 to rise and fall as a whole, thereby driving the entire adjustment mechanism to the appropriate height. The linear module 113 drives the mounting brackets 111 to move horizontally. The cylinders 116 are composite cylinders, with the transverse and longitudinal cylinders controlling the horizontal extension and retraction and vertical rise and fall of the actuating plates 112, respectively. The coordinated action of multiple cylinders allows the actuating plates 112 to extend from the slots in the carton transfer plate 7, lift and push the carton horizontally to one station, then lower and retract, completing one cycle and realizing intermittent step-by-step conveying of the carton.

[0052] The linear module 3 113 is installed at the bottom of the lifting frame 114. Both mounting frames 111 are movably set at the bottom of the linear module 3 113. Two cylinders 3 116 are respectively set at the top of the two mounting frames 111. Two sets of actuating plates 112 are respectively set at the output end of the two cylinders 3 116 through connecting parts. They are used to push the actuating plates 112 to move up and down to push the paper box transfer plate 7 to rise and fall and move to the next process.

[0053] Among them, cylinder 3 116 includes a horizontal cylinder and a vertical cylinder. The horizontal cylinder is used to push the actuating plate 112 to move horizontally, while the vertical cylinder is used to push the actuating plate 112 to move vertically. The top of the paper box transfer plate 7 is also provided with a strip hole for the actuating plate 112 to move the paper box.

[0054] In this embodiment, the paper box extrusion mechanism 8 is located at the top of the frame 1. Its function is to perform final overall compaction of the pre-formed paper box liner to ensure that the liner is tightly attached to the paper box wall. The paper box extrusion mechanism 8 also includes a rotary motor 81, a square channel 82, a rack 83, a strip plate 84, a fixing plate 85, and an inner pressing head 86. A frame top plate 100 is installed on the top of the frame 1. The square channel 82 is vertically installed between the frame top plate 100 and the top of the tray 12, providing a channel for the extrusion mechanism 8 to extrude the paper box. The strip plate 84 is movably installed on one side of the inner wall of the square channel 82 via a groove and a slider, forming a downward support rod, and its bottom extends through to the bottom of the square channel 82. The inner pressing head 86 is fixedly connected to the end of the strip plate 84 located at the bottom of the square channel 82, forming a rectangular shape that presses down precisely. The fixing plate 85 is fitted onto the outer wall of the square channel 82, and its top is also fixedly connected to the bottom of the frame top plate 100. The rotary motor 81 is fixedly installed on one side of the fixing plate 85, and it passes through the fixing plate 85 and the square channel 82, extending into the interior of the square channel 82.

[0055] The rotary motor 81 has a gear at its output end that meshes with a rack 83 to drive the lifting and lowering of the strip plate 84 inside the square channel 82.

[0056] Specifically, the gear at the output end of the rotary motor 81 meshes with the vertically arranged rack 83. When the motor rotates, the rotational motion is converted into linear lifting and lowering motion of the strip plate 84 within the square channel 82 through the gear and rack pair. The inner lining pressure head 86, which is fixedly connected to the end of the strip plate 84, moves synchronously, applying downward pressure to the cardboard box located on the tray 12 to complete the final shaping.

[0057] In this embodiment, the corner glue applicator module 5 includes a robotic arm and a glue applicator. The robotic arm is a two-section extension arm set inside the frame 1. The glue applicator is suspended at the end of the robotic arm, and the glue applicator's applicator tube is connected to an external storage tank for supplying glue.

[0058] It should be noted that the robotic arm and glue applicator are publicly known technologies. The robotic arm's flexibility drives the glue applicator to apply glue to the four corners of the inner lining of the cardboard box.

[0059] Specifically, the two-section extension robotic arm 53 gives the glue applicator 54 a large working range and multi-angle flexibility, enabling it to accurately reach all corners of the carton liner. Under the command of the control system, the glue applicator 54 performs dispensing or marking of glue to provide adhesive for the subsequent smoothing and pasting of the liner edges.

[0060] In this embodiment, the paper box mold module 6 includes a mold frame, four cylinders, and corner clamps. The mold frame is installed on the top of the workbench of the frame 1. The four cylinders are respectively installed at the top four corners of the mold frame. The output ends of the four cylinders are also provided with corner clamps, and the side of the corner clamps facing the paper box is at a vertical angle to stabilize the mold frame.

[0061] Specifically, four cylinders drive four corner clamps to move simultaneously from the four corners of the cardboard box. The corner clamps face the cardboard box at a vertical angle, which allows them to fit well against the corners of the cardboard box, achieving stable and damage-free clamping.

[0062] In this embodiment, the lining scraping module 4 includes a linear module 1, a cylinder 1, and a scraper. The linear module 1 is located on the top of the square frame platform 3 near the side of the discharge conveying mechanism 2. The cylinder 1 is horizontally slidable on the side of the linear module 1 via a sliding plate, and the scraper is installed at the output end of the cylinder 1.

[0063] Specifically, the linear module drives the cylinder and scraper on the slide plate to move horizontally. At the same time, the cylinder controls the raising and lowering of the scraper, so that it is pressed down when needed to apply a certain pressure to the lining edge, flattening and compacting the lining edge. When the scraper enters the inner lining of the cardboard box, it can cover the entire length of the lining edge of the cardboard box. The cylinder drives the scraper to raise and lower to completely adhere the glued inner lining of the cardboard box to the cardboard box.

[0064] The working principle of the above embodiments is as follows:

[0065] First, start the equipment, and then place the flat cardboard to be processed at the initial position of the carton transfer plate 7 by manual operation or feeding mechanism. The cylinder 116 of the carton adjustment structure 11 drives the actuating plate 112 to rise from the slot, lifting the cardboard. Then, the linear module 113 drives the actuating plate 112 to move horizontally, stepping and conveying the cardboard to the area below the carton preforming mechanism 10.

[0066] The linear module 104 of the pre-forming mechanism 10 adjusts the position of the forming roller frame 103 of the paper box to align it with the cardboard; then the mechanism presses down and uses the rollers in the roller frame to initially stand up or pre-fold the four sides of the cardboard to form a prototype paper box with a certain angle.

[0067] The cardboard box adjustment structure 11 actuates again, transferring the pre-formed cardboard box into the cardboard box mold module 6. The four cylinders of the mold module simultaneously drive the corner clamping blocks to clamp the cardboard box from the four corners, maintaining its stable posture.

[0068] The edge extrusion molding structure 9 starts working: According to the width of the carton, the distance between the two edge extrusion roller shafts 93 is adjusted by rotating the adjustment knob 92; then the push cylinder pushes the extrusion roller shaft to move horizontally inward, rolling and folding the edge linings that stand up on both sides of the carton to achieve the preset angle; the robotic arm of the edge glue applicator module 5 drives the glue applicator to move to the four corners of the carton, and accurately applies glue or coats glue at the contact points between the edge linings and the carton body;

[0069] The carton positioning structure 11 moves the carton to the workstation above the tray 12. The rotary motor 81 of the carton pressing mechanism 8 starts, driving the strip plate 84 and the inner liner pressing head 86 to press down through the gear rack pair, fully compacting the inner liner of the carton to ensure that it fits tightly against the carton wall;

[0070] The cardboard box is then transferred to the edge-smoothing module 4 on the square frame platform 3. A linear module 1 moves the scraper horizontally, while a cylinder 1 controls the scraper to press down, smoothing and compacting the glued edge lining to ensure a strong bond and a smooth surface. Finally, the finished cardboard box is pushed to the discharge conveyor 2 and automatically output by the conveyor belt, completing the entire inner lining folding and installation process.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper box lining folding and installation device, comprising a frame (1) and a paper box transfer plate (7) in the middle of the internal workbench of the frame (1), wherein the paper box transfer plate (7) is flush with the internal workbench of the frame (1) and its side is integrally formed with a square frame platform (3), and one side of the square frame platform (3) is also fixedly connected to the side of the frame (1) near the paper box transfer plate (7) by bolts, wherein the internal workbench of the frame (1), the paper box transfer plate (7) and the square frame platform (3) are on the same horizontal plane and are mainly used as a platform for conveying paper box processing support, characterized in that: The frame (1) has two edge extrusion molding structures (9) on its internal worktable, which are used for folding the edge lining of the cardboard box; The two liner extrusion molding structures (9) are provided with a paper box preforming mechanism (10) for initially folding the paper box, and the bottom of the paper box transfer plate (7) is provided with a paper box positioning structure (11) for conveying the preformed paper boxes one by one. The top of the workbench inside the frame (1) is also provided with a paper box extrusion mechanism (8) for extruding and deforming the paper box. A tray (12) is provided between the end of the paper box extrusion mechanism (8) and the top of the paper box preforming mechanism (10) for holding the cardboard that has not yet been processed into an inner liner. A corner of the workbench inside the frame (1) is also provided with a corner glue applicator (5) for applying glue to the pre-processed paper box inner liner. The top of the paper box transfer plate (7) is also provided with two paper box mold modules (6) for limiting the pre-processed paper boxes. A lining scraping module (4) is provided on the top of the square frame platform (3) and on the side away from the frame (1), which is mainly used to press and stick the lining of the cardboard box after gluing.

2. The paper box lining folding and installation device according to claim 1, characterized in that: The square frame platform (3) is provided with a material conveying mechanism (2) for conveying finished paper boxes on the side away from the frame (1). The top of the paper box transfer plate (7) is provided with two clearance holes, which facilitates the equipment to push the pre-formed paper boxes on the top of the paper box transfer plate (7) from left to right to other processing steps.

3. The paper box lining folding and installation device according to claim 1, characterized in that: The liner extrusion molding structure (9) includes a linear module two (91), an adjustment knob (92), and two liner extrusion rollers (93). The linear module two (91) is set in the middle of the top of the workbench inside the frame (1) through an arched frame. The adjustment knob (92) is set on both sides of the linear module two (91), and the two adjustment knobs (92) are respectively connected to the transmission threaded rods at both ends of the linear module two (91). The adjustment function is achieved by rotating the adjustment knob (92) to brake the rotation of the transmission threaded rods. The two side liner extrusion roller shafts (93) are respectively composed of a mounting frame, a push cylinder and an extrusion roller shaft. The mounting frame is threadedly connected to the transmission threaded rod on the linear module two (91). The distance between the two side liner extrusion roller shafts (93) can be adjusted by rotating the adjustment knob (92). The push cylinder is used to push the extrusion roller shaft to move laterally and horizontally to extrude the carton side liner.

4. The paper box liner folding and installation device according to claim 1, characterized in that: The pre-forming mechanism (10) includes two support frames (101), a translation frame (102), a paper box forming roller frame (103), and a linear module four (104). The two support frames (101) are arranged in a row, and the top is also provided with a linear module four (104) for driving the translation frame (102) to move horizontally. The paper box forming roller frame (103) is a square frame. At the same time, the two shorter inner frames are respectively provided with rollers, and one side of the outer frame of one paper box forming roller frame (103) is also connected to the translation frame (102) for adjusting the position of the paper box forming roller frame (103).

5. The paper box liner folding and installation device according to claim 1, characterized in that: The paper box adjustment structure (11) includes two mounting brackets (111), two sets of toggle plates (112), a linear module three (113), a lifting frame (114), two fixed brackets (115), and two cylinders three (116). The two fixed brackets (115) are fixedly installed at the bottom of the paper box transfer plate (7). The lifting frame (114) is installed between the two fixed brackets (115), and the connection between the lifting frame (114) and the fixed brackets (115) is connected by a limiting kit. The top of the lifting frame (114) and the paper box transfer plate (7) are also provided with two cylinders four. The output end of the cylinders four is connected to the top of the paper box transfer plate (7), and the bottom of the cylinders four is installed on the top of the lifting frame (114). The cylinders four are mainly used to lift the entire lifting frame (114) up and down on the two fixed brackets (115). The linear module three (113) is installed at the bottom of the lifting frame (114). The two mounting frames (111) are movably arranged at the bottom of the linear module three (113). The two cylinders three (116) are respectively arranged at the top of the two mounting frames (111). The two sets of actuating plates (112) are respectively arranged at the output end of the two cylinders three (116) through connecting parts, and are used to push the actuating plates (112) to move up and down to push the paper box transfer plate (7) to rise and fall and move to the next process.

6. The paper box liner folding and installation device according to claim 5, characterized in that: The cylinder three (116) includes a horizontal cylinder and a vertical cylinder. The horizontal cylinder is used to push the actuating plate (112) to move horizontally, while the vertical cylinder is used to push the actuating plate (112) to move vertically. The top of the paper box transfer plate (7) is also provided with a strip hole for the actuating plate (112) to move the paper box.

7. The paper box liner folding and installation device according to claim 1, characterized in that: The paper box pressing mechanism (8) includes a rotary motor (81), a square channel (82), a rack (83), a strip plate (84), a fixing plate (85), and an inner liner pressing head (86). A frame top plate (100) is installed on the top of the frame (1). The square channel (82) is vertically installed between the frame top plate (100) and the top of the tray (12). The strip plate (84) is movably installed on one side of the inner wall of the square channel (82) via a groove and a slider, and its bottom extends through to the bottom of the square channel (82). The inner liner pressing head (86) is located in the square channel (81). 82) The bottom strip plate (84) is fixedly connected to the end. The fixed plate (85) is fitted on the outer wall of the square channel (82). The top of the fixed plate (85) is also fixedly connected to the bottom of the frame top plate (100). The rotary motor (81) is fixedly installed on one side of the fixed plate (85). The rotary motor (81) passes through the fixed plate (85) and the square channel (82) and extends into the inside of the square channel (82). The output end of the rotary motor (81) is provided with a gear that meshes with the rack (83) to drive the lifting and lowering action of the strip plate (84) inside the square channel (82).

8. The paper box lining folding and installation device according to claim 1, characterized in that: The corner glue applicator module (5) includes a robotic arm and a glue applicator. The robotic arm is a two-section extension arm set inside the frame (1). The glue applicator is suspended at the end of the robotic arm, and the glue applicator's glue applicator tube is connected to an external storage tank for supplying glue.

9. A paper box liner folding and installation device according to claim 1, characterized in that: The paper box mold module (6) includes a mold frame, four cylinders and corner clamps. The mold frame is installed on the top of the workbench of the frame (1). The four cylinders are installed at the top four corners of the mold frame. The output end of the four cylinders is also provided with corner clamps. The corner clamps face the paper box at a vertical angle to stabilize the mold frame.

10. A paper box liner folding and installation device according to claim 2, characterized in that: The lining scraping module (4) includes a linear module, a cylinder, and a scraper. The linear module is located on the top of the square frame platform (3) near the material discharge and conveying mechanism (2). The cylinder is horizontally slidable on the side of the linear module, and the scraper is installed at the output end of the cylinder.

Citation Information

Patent Citations

  • A paper box liner folding and installation device

    CN110253935B