A corrugated cardboard box grooving and hole-opening device

Abstract

This application discloses a corrugated cardboard box grooving and punching device, including a chassis, a conveying device, a punching device, and a lifting device. The lifting device includes a tilting arm and a tilting control assembly. The tilting arm is hinged to the chassis via a pivot shaft, and the punching device is mounted on its free end. The tilting control assembly is driven by a motor and is horizontally mounted in the chassis. It controls the free end of the tilting arm to approach or move away from the conveyor belt, and keeps its position fixed when it approaches the conveyor belt. Simultaneously, it controls the punching device to punch holes in the corrugated cardboard boxes on the conveyor belt. When a corrugated cardboard box is conveyed to the punching station, the tilting control assembly drives the tilting arm to approach and fix it. After the punching device completes the punching, the tilting arm rotates in the opposite direction to move away, avoiding interference and achieving continuous and stable punching operation on the corrugated cardboard boxes.

Description

Technical Field

[0001] This invention relates to the field of corrugated cardboard box processing technology, and specifically to a corrugated cardboard box grooving and hole-opening device. Background Technology

[0002] Corrugated cardboard is die-cut, creasing, and stapling or gluing to make corrugated boxes. Corrugated boxes are one of the most widely used packaging products, and their usage has always been the highest among all packaging products, including calcium-plastic corrugated boxes. For more than half a century, corrugated boxes have gradually replaced wooden boxes and other transport packaging containers due to their superior performance and good processing performance, becoming the mainstay of transport packaging. In addition to protecting goods and facilitating warehousing and transportation, they also beautify and promote goods, and are green and environmentally friendly products, which are beneficial to environmental protection and loading and unloading transportation.

[0003] In the prior art, patent publication number CN202310903397 discloses a corrugated cardboard box grooving and hole-opening device, which achieves the hole-opening action through mechanical transmission, but has the following shortcomings:

[0004] Firstly, the positioning accuracy of traditional transmission structures (such as gear or chain transmission) is limited, making it difficult to meet the requirements of high-precision hole opening, resulting in a large deviation in the hole opening position.

[0005] Secondly, replacing the drilling tool requires disassembling multiple parts with tools, which is cumbersome and time-consuming, reducing the maintenance efficiency of the equipment. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] This application provides a corrugated carton grooving and punching device, including a chassis, a conveying device, a punching device, and a lifting device. The lifting device includes a tilting arm and a tilting control assembly. The connecting end of the tilting arm is hinged in the chassis via a pivot, and the free end is fitted with the punching device. The tilting control assembly is driven by a motor and is mounted horizontally in the chassis. It is used to control the free end of the tilting arm to approach or move away from the conveying device, and while keeping the tilting arm stationary when the free end of the tilting arm approaches the conveying device, it controls the punching device to punch holes in the corrugated carton on the conveying device.

[0008] The flip control assembly includes a pair of slides, a pair of slide plates, a pair of crossbars, and a pair of lead screws. The slides are horizontally opened on the inner wall of the chassis, and the bottom of the slides has a through groove. The slide plates are slidably installed in the slides. The lead screws are rotatably installed on the outer wall of the chassis and connected to the motor drive. They are equipped with screw sleeves, which pass through the through grooves and are fixed to the slide plates. The pair of crossbars are fixed between the pair of slide plates. The middle part of the flip arm slides between the pair of crossbars in a V-shape.

[0009] The motor is a dual-shaft motor, with the two output shafts connected to the lead screws via bevel gear sets.

[0010] The punching device includes a baffle, a mounting groove, a sliding plate, a reset component, and a punching knife. The baffle is fixed to the free end face of the flipping arm and extends downward. The mounting groove is located at the bottom of the free end of the flipping arm. The sliding plate is floatingly mounted in the mounting groove through the reset component. Its lower end extends out of the mounting groove and is detachably connected to the punching knife. When the crossbar moves forward, it pushes the sliding plate to bring the punching knife close to the baffle, so as to punch a hole in the corrugated cardboard box.

[0011] The opening device also includes a pair of side slots and a pair of auxiliary push blocks. The pair of side slots are symmetrically opened on both sides of the free end of the tilting arm and are connected to the mounting slot. The pair of auxiliary push blocks are symmetrically fixed on the top of both sides of the baffle and are slidably installed in the corresponding side slots. When the slide moves toward the conveying device, it contacts the auxiliary push blocks, and at the same time, the crossbar at the bottom contacts the baffle.

[0012] The reset component includes a sliding hole, a fixed rod, and a reset spring. The sliding hole extends along the axis of the mounting groove and is opened on the baffle. The fixed rod passes through the sliding hole and is fixed at both ends to the ends of the mounting groove. The reset spring is sleeved on the fixed rod, and its two ends abut against the end of the mounting groove near the conveying device and the end of the baffle facing the conveying device, respectively.

[0013] The hole-opening device also includes a notch, a pair of slots, a support plate, a pair of slots, a pair of locking elements, and a pair of unlocking elements. The notch is opened at the bottom of the baffle, and slots are symmetrically arranged on both sides. The hole-opening knife is fixed on the support plate. Slots are opened on both sides of the support plate. The locking elements are floatingly inserted into the side of the baffle and are used to enter the slots and engage with the slots. The unlocking elements are floatingly installed on the outer wall of the baffle and are used to release the locking elements from the slots.

[0014] The locking mechanism includes a frame, a floating block, an insert block, and a floating spring. The frame is fixed on the outer wall of the baffle, with its left and right sides open and its inner cavity connected to the slot. The floating block is floatingly installed in the frame by the floating spring, and its inner end is fixed with an insert block for engaging with the slot. The unlocking mechanism is driven by the left and right side walls of the floating block. When the unlocking mechanism descends, it controls the floating block to move away from the slot.

[0015] The unlocking component includes a fixed plate, a pre-tension spring, an unlocking frame, an unlocking groove, and an unlocking ridge. The fixed plate is fixed to the side wall of the baffle. The unlocking frame includes a top plate and a pair of side plates that are fixed to each other. The pre-tension spring is located between the bottom surface of the top plate and the top surface of the locking component. The unlocking groove is opened on the side wall of the locking component and is set in a shape that is larger at the top and smaller at the bottom. The unlocking ridge is fixed on the side plate and is used to cooperate with the unlocking groove to control the locking component to disengage from the groove when the side plate descends.

[0016] The unlocking mechanism also includes a lever, which is fixed between the bottom of a pair of side plates.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. High-precision positioning: Through the screw drive and V-shaped tilting arm structure, the tilting angle of the tilting arm can be precisely controlled to ensure the positioning accuracy of the hole opening device, thus solving the problem of positioning deviation in the existing technology.

[0019] 2. Automatic reset and lateral limit: The cooperation of the reset spring and the fixing rod enables the sliding plate to be accurately reset, and the design of the auxiliary push block and the side groove prevents the sliding plate from deflecting, thus improving the stability of the hole opening process.

[0020] 3. Quick tool change: The mechanical linkage structure of the locking and unlocking parts allows for quick tool change without tools, significantly improving equipment maintenance efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of the corrugated cardboard box grooving and perforation equipment in the embodiments of this application;

[0022] Figure 2 This is a perspective view of the corrugated cardboard box grooving and hole-opening device in an embodiment of this application (without the flipping arm and part of the flipping control components).

[0023] Figure 3 In the embodiments of this application, the flipping arm and the arm not in Figure 2 The image shows another part of the flip control component in a 3D view.

[0024] Figure 4 This is a perspective view of the flipping arm and the opening device in the embodiment of this application (cut longitudinally from the middle).

[0025] Figure 5 This is a perspective view of the horizontal plate and adjacent structures in the embodiment of this application (divided horizontally from the middle);

[0026] Figure 6 for Figure 5 A magnified view of the structure at point A in the middle;

[0027] Figure 7 This is a perspective view of the locking and unlocking components in the embodiment of this application.

[0028] Figure Labels

[0029] 1-Chassis, 2-Transmission device, 3-Opening device, 31-Baffle, 32-Mounting slot, 33-Sliding plate, 34-Reset component, 341-Sliding hole, 342-Fixing rod, 343-Reset spring, 35-Opening knife, 36-Side groove, 37-Auxiliary push block, 38-Notch, 39-Slot, 310-Bearing plate, 311-Card slot, 4-Tilting arm, 5-Tilting control component, 51-Slide groove, 52-Slide plate, 53-Crossbar, 54-Lead screw, 55-Screw sleeve, 6-Locking component, 61-Frame, 62-Floating block, 63-Insertion block, 64-Floating spring, 7-Unlocking component, 71-Fixing plate, 72-Preload spring, 73-Unlocking frame, 731-Top plate, 732-Side plate, 74-Unlocking groove, 75-Unlocking ridge, 76-Pull rod. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] The corrugated cardboard box grooving and perforation equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0033] Example 1:

[0034] This application provides a corrugated carton grooving and perforation device, including a housing 1, a conveying device 2, a perforation device 3, and a lifting device. The lifting device includes a tilting arm 4 and a tilting control component 5. The connecting end of the tilting arm 4 is hinged in the housing 1 via a rotating shaft, and the free end is installed with the perforation device 3. The tilting control component 5 is driven by a motor and is installed horizontally in the housing 1. It is used to control the free end of the tilting arm 4 to approach or move away from the conveying device 2, and while keeping the tilting arm 4 stationary when it approaches the conveying device 2, it controls the perforation device 3 to perform a perforation operation on the corrugated carton on the conveying device 2.

[0035] like Figures 1 to 7 As shown, due to the above structure, when the corrugated carton is conveyed to the opening station (corresponding to the machine box 1) by the conveyor device 2, the motor of the flip control component 5 is started, driving the flip arm 4 to rotate around the shaft, so that the free end of the flip arm 4 flips towards the conveyor device 2 to approach the corrugated carton; when the free end of the flip arm 4 moves to the preset opening position, the flip control component 5 continues to drive and keeps the position of the flip arm 4 fixed. At this time, the flip control component 5 drives the opening device 3 to start, and performs a precise opening action on the corrugated carton that is stationary or being conveyed at a constant speed on the conveyor device 2; after the opening is completed, the flip control component 5 drives the motor again, so that the free end of the flip arm 4 rotates in the opposite direction around the shaft to move away from the conveyor device 2 (conveyor belt), avoiding interference with the next corrugated carton, thereby realizing continuous and stable opening operation of the corrugated carton.

[0036] Example 2:

[0037] The difference from Embodiment 1 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the flipping control component 5 includes a pair of slide grooves 51, a pair of slide plates 52, a pair of crossbars 53, and a pair of lead screws 54. The slide grooves 51 are horizontally opened on the inner wall of the housing 1, and a through groove is opened at the bottom of the groove. The slide plates 52 are slidably installed in the slide grooves 51. The lead screws 54 are rotatably installed on the outer wall of the housing 1 and are connected to the motor drive. They are equipped with screw sleeves 55. The screw sleeves 55 pass through the through grooves and are fixedly connected to the slide plates 52. The pair of crossbars 53 are fixed between the pair of slide plates 52. The middle part of the flipping arm 4 slides between the pair of crossbars 53 in a V shape.

[0038] In this embodiment of the application, the motor is a dual-shaft motor, and the two output shafts are respectively connected to each lead screw 54 through a bevel gear set.

[0039] like Figures 1 to 4As shown, due to the aforementioned structure, when the tilting arm 4 needs to be driven to move, the dual-axis motor starts, and its two output shafts drive the lead screws 54 on both sides to rotate synchronously through bevel gear sets. When the lead screws 54 rotate, the screw sleeve 55 moves horizontally along the axis of the lead screw 54. Since the screw sleeve 55 passes through the through slot of the slide groove 51 and is fixedly connected to the slide plate 52, and the slide plate 52 is slidably installed in the slide groove 51, the screw sleeve 55 drives the slide plate 52 to slide horizontally along the slide groove 51. When the slide plate 52 moves, the crossbar 53 fixed between the pair of slide plates 52 moves synchronously. Since the tilting arm 4 is V-shaped and its middle part slides through the pair of crossbars 53, the horizontal movement of the crossbar 53 will affect the tilting arm 4. The middle part generates a thrust or pull force, forcing the tilting arm 4 to rotate around the pivot, thereby realizing the action of the free end of the tilting arm 4 approaching or moving away from the conveying device 2; when the free end of the tilting arm 4 approaches the conveying device 2, its front half is parallel to the slide 51, one crossbar 53 is located at the bottom of the front end of the slide plate 52, and another crossbar 53 is located at the top of the rear end of the slide plate 52. When the slide plate 52 continues to slide forward, the front half of the tilting arm 4 passes between the two crossbars 53. The crossbar 53 located below the front end then drives the opening device 3 to move. Through the high-precision characteristics of the screw 54 transmission, the tilting angle of the tilting arm 4 can be accurately controlled to ensure the positioning accuracy of the opening device 3.

[0040] Example 3:

[0041] The difference from Embodiment 2 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the opening device 3 includes a baffle 31, a mounting groove 32, a sliding plate 33, a reset member 34, and an opening knife 35. The baffle 31 is fixed on the free end face of the flipping arm 4 and extends downward. The mounting groove 32 is located at the bottom of the free end of the flipping arm 4. The sliding plate 33 is floatingly mounted in the mounting groove 32 through the reset member 34. Its lower end extends out of the mounting groove 32 and is detachably connected to the opening knife 35. When the crossbar 53 moves forward, it pushes the sliding plate 33 to bring the opening knife 35 close to the baffle 31, so as to open the corrugated cardboard box.

[0042] like Figures 4 to 5As shown, due to the above structure, when the crossbar 53 of the flipping control component 5 moves forward, the crossbar 53 contacts the sliding plate 33 of the hole-opening device 3 and pushes the sliding plate 33 to move along the mounting groove 32 towards the conveying device 2. At this time, the reset member 34 is compressed and stores elastic potential energy. During the horizontal movement of the sliding plate 33 towards the conveying device 2, the hole-opening knife 35 at its lower end moves and approaches the baffle 31. When the hole-opening knife 35 contacts the corrugated cardboard box on the conveying device 2, under the continuous pushing force of the crossbar 53, the hole-opening knife 35 cooperates with the baffle 31 to cut grooves and open holes in the corrugated cardboard box. After the hole is opened, the crossbar 53 moves backward under the drive of the flipping control component 5, the sliding plate 33 loses external pushing force, the reset member 34 releases elastic potential energy, pushes the sliding plate 33 to reset upward along the mounting groove 32, and drives the hole-opening knife 35 away from the corrugated cardboard box, realizing the automatic completion and reset of the hole-opening action. At the same time, the detachable hole-opening knife 35 is easy to replace according to different hole-opening requirements.

[0043] Example 4:

[0044] The difference from Embodiment 3 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the opening device 3 also includes a pair of side grooves 36 and a pair of auxiliary push blocks 37. The pair of side grooves 36 are symmetrically opened on both sides of the free end of the flipping arm 4 and are connected to the mounting groove 32. The pair of auxiliary push blocks 37 are symmetrically fixed on the top of both sides of the baffle 31 and are slidably installed in the corresponding side grooves 36. When the slide plate 52 moves toward the conveying device 2, it contacts the auxiliary push blocks 37, and at the same time, the crossbar 53 at the bottom contacts the baffle 31.

[0045] like Figures 3 to 5 As shown, due to the above structure, when the sliding plate 33 moves towards the conveying device 2 under the push of the crossbar 53, the sliding plate 33 contacts the auxiliary push block 37 in the side groove 36 and drives the auxiliary push block 37 to move down synchronously along the side groove 36. The auxiliary push block 37 forms a lateral limit on the sliding plate 33, preventing the sliding plate 33 from tilting during the movement. At the same time, the crossbar 53 at the bottom contacts the baffle 31 and applies a supporting force to the baffle 31, so that the baffle 31 and the sliding plate 33 form a relatively stable clamping structure. Under the synergistic effect of the two, the positional accuracy of the punch 35 is higher when it approaches the corrugated cardboard box, and the force is more balanced during the punching process, effectively avoiding punching deformation or positional deviation caused by unilateral force, and improving the stability of punching quality.

[0046] Example 5:

[0047] The difference from Embodiment 4 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the reset member 34 includes a sliding hole 341, a fixing rod 342, and a reset spring 343. The sliding hole 341 extends along the axis of the mounting groove 32 and is opened on the baffle 31. The fixing rod 342 passes through the sliding hole 341 and is fixedly connected to the ends of the mounting groove 32 at both ends. The reset spring 343 is sleeved on the fixing rod 342, and its two ends respectively abut against the end of the mounting groove 32 near the conveying device 2 and the end of the baffle 31 facing the conveying device 2.

[0048] like Figure 4 As shown, due to the above structure, when the sliding plate 33 is pushed towards the conveying device 2 by the crossbar 53, the sliding plate 33 compresses the return spring 343 along the axial direction of the fixed rod 342. The fixed rod 342 passes through the sliding hole 341 on the baffle 31, providing precise guidance for the movement direction of the sliding plate 33 and preventing the sliding plate 33 from shifting laterally during the compression of the spring. After the hole is opened, the crossbar 53 retracts, and the return spring 343 extends under its own elastic restoring force, pushing the sliding plate 33 to move in the opposite direction along the fixed rod 342 to reset. The cooperation between the fixed rod 342 and the sliding hole 341 ensures the stability of the reset path, avoids deformation or displacement of the reset component 34 due to long-term use, extends the service life of the device, and ensures the consistency of the reset position after each hole opening.

[0049] Example 6:

[0050] The difference from Embodiment 5 is that, in this embodiment, in addition to the structural features of the aforementioned embodiments, the opening device 3 also includes a notch 38, a pair of slots 39, a support plate 310, a pair of slots 311, a pair of locking members 6, and a pair of unlocking members 7. The notch 38 is opened at the bottom of the baffle 31, and the slots 39 are symmetrically arranged on both sides. The opening knife 35 is fixed on the support plate 310. The slots 311 are opened on both sides of the support plate 310. The locking members 6 are floatingly inserted into the side of the baffle 31 and are used to penetrate the slots 39 and engage with the slots 311. The unlocking members 7 are floatingly installed on the outer wall of the baffle 31 and are used to release the locking members 6 from the engaging state of the slots 311.

[0051] In this embodiment of the application, the locking component 6 includes a frame shell 61, a floating block 62, an insert block 63, and a floating spring 64. The frame shell 61 is fixed on the outer side wall of the baffle 31, with its left and right sides through and its inner cavity connected to the slot 39. The floating block 62 is floatingly installed in the frame shell 61 by the floating spring 64, and its inner end is fixed with an insert block 63 for engaging with the slot 311. The unlocking component 7 is in transmission cooperation with the left and right side walls of the floating block 62. When the unlocking component 7 descends, it controls the floating block 62 to move away from the slot 311.

[0052] like Figures 4 to 7As shown, due to the above structure, when the hole-making tool 35 needs to be installed, the support plate 310, on which the hole-making tool 35 is fixed, is inserted into the notch 38 of the baffle 31. The slots 311 on both sides of the support plate 310 are aligned with the slots 39 of the baffle 31. At this time, the floating block 62 of the locking component 6 moves inward under the elastic force of the floating spring 64, driving the insert block 63 to pass through the slot 39 and be engaged in the slot 311, thus fixing the support plate 310 to the baffle 31. When the hole-making tool 35 needs to be replaced, the unlocking component 7 is operated to cooperate with the side wall of the floating block 62, pushing the floating block 62 to move outward against the elastic force of the floating spring 64. The insert block 63 disengages from the slot 311 and the slot 39 along with the floating block 62, and the support plate 310 can be removed from the notch 38. Through the cooperation of the locking component 6 and the unlocking component 7, the hole-making tool 35 can be quickly disassembled and installed, and replacement can be completed without tools, improving the maintenance efficiency of the equipment.

[0053] The bottom of the insert 63 is inclined, and the top of the two side walls of the support plate 310 also has a corresponding slope, so that when the two sides of the support plate 310 are inserted into the corresponding slots 39 and rise in the notch 38, the insert 63 is pushed away from the slot 39. When the slot 311 corresponds to the insert 63, the insert 63 is inserted into the slot 311 under the elastic force of the floating spring 64, which makes it convenient for the two sides of the support plate 310 to be inserted into the slots 39.

[0054] Example 7:

[0055] The difference from Embodiment 6 is that, in this embodiment, in addition to including the structural features of the aforementioned embodiments, the unlocking component 7 includes a fixing plate 71, a pre-tension spring 72, an unlocking frame 73, an unlocking groove 74, and an unlocking ridge 75. The fixing plate 71 is fixedly mounted on the side wall of the baffle 31. The unlocking frame 73 includes a top plate 731 and a pair of side plates 732 that are fixedly connected to each other. The pre-tension spring 72 is disposed between the bottom surface of the top plate 731 and the top surface of the locking component 6. The unlocking groove 74 is opened on the side wall of the locking component 6 and is arranged in a manner that is larger at the top and smaller at the bottom. The unlocking ridge 75 is fixedly mounted on the side plate 732 and is used to cooperate with the unlocking groove 74 to control the locking component 6 to disengage from the slot 311 when the side plate 732 descends.

[0056] In this embodiment of the application, the unlocking member 7 further includes a pull rod 76, which is fixed between the bottoms of a pair of side plates 732.

[0057] like Figures 5 to 7As shown, due to the aforementioned structure, when the locking mechanism 6 needs to be unlocked, pulling down the lever 76 causes the side plate 732 and top plate 731 of the unlocking frame 73 to descend synchronously, compressing the pre-tension spring 72. During the descent of the side plate 732, the unlocking ridge 75 on it inserts into the unlocking groove 74 of the locking mechanism 6. Since the unlocking groove 74 has an inclined structure that is larger at the top and smaller at the bottom, the unlocking ridge 75 exerts a lateral pushing force on the floating block 62 when sliding along the unlocking groove 74, forcing the floating block 62 to overcome the elastic force of the floating spring 64 and move away from the locking mechanism. As the slot 311 moves, the insert block 63 disengages from the slot 311 along with the floating block 62, completing the unlocking process. After the pull rod 76 is released, the pre-tensioned spring 72 releases its elastic potential energy, pushing the unlocking frame 73 upward to reset. The unlocking ridge 75 disengages from the unlocking slot 74, and the floating block 62 resets under the action of the floating spring 64. The insert block 63 then re-engages into the slot 311 to achieve locking. This structure achieves rapid switching between unlocking and locking through mechanical linkage, making operation convenient and locking stable, further improving the efficiency and reliability of replacing the hole punch 35.

[0058] It should be noted that, in this document, 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 that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0059] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A corrugated cardboard box grooving and perforation device, comprising a chassis, a conveying device, a perforation device, and a lifting device, characterized in that, The lifting device includes a tilting arm and a tilting control assembly. The connecting end of the tilting arm is hinged in the machine housing via a rotating shaft, and the free end is equipped with an opening device. The tilting control assembly is driven by a motor and is installed in the machine housing in a horizontal direction. It is used to control the free end of the tilting arm to approach or move away from the conveying device. When the free end of the tilting arm approaches the conveying device, it keeps the tilting arm stationary while controlling the opening device to open a hole in the corrugated cardboard box on the conveying device. The flipping control assembly includes a pair of slides, a pair of slide plates, a pair of crossbars, and a pair of lead screws. The slides are horizontally opened on the inner wall of the chassis, and a through groove is opened at the bottom of the slides. The slide plates are slidably installed in the slides. The lead screws are rotatably installed on the outer wall of the chassis and are connected to the motor drive. The lead screws are equipped with screw sleeves. The screw sleeves pass through the through grooves and are fixedly connected to the slide plates. The pair of crossbars are fixed between the pair of slide plates. The middle part of the flipping arm slides through the pair of crossbars in a V shape. The opening device includes a baffle, a mounting groove, a sliding plate, a reset component, and an opening knife. The baffle is fixed to the free end face of the flipping arm and extends downward. The mounting groove is located at the bottom of the free end of the flipping arm. The sliding plate is floatingly mounted in the mounting groove through the reset component. Its lower end extends out of the mounting groove and is detachably connected to the opening knife. When the crossbar moves forward, it pushes the sliding plate to bring the opening knife close to the baffle, so as to open a hole in the corrugated cardboard box.

2. The corrugated cardboard box grooving and perforation equipment according to claim 1, characterized in that, The motor is a dual-shaft motor, with the two output shafts connected to the lead screws via bevel gear sets.

3. The corrugated cardboard box grooving and perforation equipment according to claim 1, characterized in that, The opening device also includes a pair of side slots and a pair of auxiliary push blocks. The pair of side slots are symmetrically opened on both sides of the free end of the tilting arm and are connected to the mounting slot. The pair of auxiliary push blocks are symmetrically fixed on the top of both sides of the baffle and are slidably installed in the corresponding side slots. When the slide moves toward the conveying device, it contacts the auxiliary push blocks, and at the same time, the crossbar at the bottom contacts the baffle.

4. The corrugated cardboard box grooving and perforation equipment according to claim 1, characterized in that, The reset component includes a sliding hole, a fixed rod, and a reset spring. The sliding hole extends along the axis of the mounting groove and is opened on the baffle. The fixed rod passes through the sliding hole and is fixed at both ends to the ends of the mounting groove. The reset spring is sleeved on the fixed rod, and its two ends respectively abut against the end of the mounting groove near the conveying device and the end of the baffle facing the conveying device.

5. The corrugated cardboard box grooving and perforation equipment according to claim 1, characterized in that, The hole-opening device also includes a notch, a pair of slots, a support plate, a pair of slots, a pair of locking components, and a pair of unlocking components. The notch is opened at the bottom of the baffle, and slots are symmetrically arranged on both sides. The hole-opening knife is fixed on the support plate. Slots are opened on both sides of the support plate. The locking components are floatingly inserted into the side of the baffle and are used to enter the slots and engage with the slots. The unlocking components are floatingly installed on the outer wall of the baffle and are used to release the locking components from the engaging state of the slots.

6. The corrugated cardboard box grooving and perforation equipment according to claim 5, characterized in that, The locking component includes a frame, a floating block, an insert block, and a floating spring. The frame is fixed on the outer wall of the baffle, with its left and right sides open and its inner cavity connected to the slot. The floating block is floatingly installed in the frame by the floating spring, and its inner end is fixed with an insert block for engaging with the slot. The unlocking component is driven by the left and right side walls of the floating block. When the unlocking component descends, it controls the floating block to move away from the slot.

7. The corrugated cardboard box grooving and perforation equipment according to claim 5, characterized in that, The unlocking component includes a fixed plate, a pre-tension spring, an unlocking frame, an unlocking groove, and an unlocking ridge. The fixed plate is fixed to the side wall of the baffle. The unlocking frame includes a top plate and a pair of side plates that are fixed to each other. The pre-tension spring is disposed between the bottom surface of the top plate and the top surface of the locking component. The unlocking groove is opened on the side wall of the locking component and is arranged with a larger top and a smaller bottom. The unlocking ridge is fixed to the side plate and is used to cooperate with the unlocking groove to control the locking component to disengage from the groove when the side plate descends.

8. The corrugated cardboard box grooving and perforation equipment according to claim 7, characterized in that, The unlocking mechanism also includes a pull rod fixed between the bottoms of the pair of side plates.

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