Oil splashing prevention paperboard oiling machine for paper packaging box processing

Abstract

The invention discloses an oil splashing prevention paperboard oiling machine for paper packaging box processing. The interior of the oiling roller body is divided into a plurality of independent third cavities through partition plates, the first cavity communicates with the third cavities through second oil passing holes in one-to-one correspondence, oil conveyed by the oil supply assembly can be accurately distributed to the third cavities through oil conveying pipes, the first cavities and the second oil passing holes, and segmented supply of the oil is achieved; in cooperation with a cut-off ring of an opening and closing mechanism, the cut-off ring can be driven to rotate through a driving assembly according to the actual oil passing requirement of a paperboard, the corresponding second oil passing hole is selectively blocked, oil supply of a specific area is closed, excessive oil is prevented from leaking out, oil waste is effectively reduced, and the paperboard processing scene with different widths and different area oil passing requirements is adapted; especially for the strip-shaped oil passing requirement, the lantern rings corresponding to the cut-off oil supply area can be directly taken down, the oil transfer path between the adjacent lantern rings is cut off structurally, oil transfer overflow is reduced, the precise oil supply effect is improved, and meanwhile oil waste is reduced.

Description

Technical Field

[0001] This invention specifically relates to an oiling machine for anti-splash cardboard used in the processing of paper packaging boxes. Background Technology

[0002] In the processing of paper packaging boxes, to improve the oil and water resistance and surface gloss of the cardboard, it is usually necessary to perform an oiling treatment, which is completed using a cardboard oiling machine. Existing cardboard oiling machines generally include a frame, a conveyor belt, and an oiling mechanism. The conveyor belt transports the cardboard, and the oiling rollers in the oiling mechanism contact the cardboard to perform the oiling operation.

[0003] However, existing oiling machines have many shortcomings in practical applications, making it difficult to meet the demands of high precision, low loss, and strong adaptability in paper packaging box processing. First, most existing oiling rollers are integral structures, and their outer oiling components cannot be disassembled or replaced. When local wear, aging, or blockage occurs, the entire oiling roller must be replaced, which not only increases equipment maintenance costs but also reduces production efficiency. Second, the internal oil flow structure of the oiling roller is poorly designed, mostly using a single cavity for liquid supply, which cannot achieve segmented and precise oil supply. When different widths and areas of cardboard need to be oiled, the oil is prone to overflow or uneven distribution, resulting in oil splashing, contaminating the equipment and cardboard, and affecting product processing quality. Furthermore, existing oiling machines lack effective oil interception control mechanisms, making it impossible to flexibly open or close the oil supply to specific areas according to the actual oiling needs of the cardboard. When a part of the cardboard does not need oiling, excess oil will continue to seep out, causing oil waste and further exacerbating the oil splashing problem. Summary of the Invention

[0004] In view of the defects of the prior art, the technical problem to be solved by the present invention is to provide an oil-splashing paperboard oiling machine for paper packaging box processing.

[0005] An oiling machine for anti-splatter cardboard in paper packaging box processing, comprising:

[0006] A frame on which a conveyor belt is mounted;

[0007] An oiling mechanism, which is mounted on a frame above a conveyor belt, includes an oiling roller rotatably mounted on the frame and an oiling assembly mounted on the frame for supplying oil to the oiling roller.

[0008] An oiling roller includes a roller body and several collars detachably sleeved on the outer periphery of the roller body and distributed along the axial direction of the roller body. Each collar is provided with a first oil passage hole and a water-permeable sponge. The roller body has a first cavity and a second cavity in sequence from the inside to the outside. The second cavity is provided with partitions evenly distributed along the axial direction of the roller body, which divide the second cavity into several third cavities. Several second oil passage holes are opened through the first cavity. The second oil passage holes are arranged one-to-one with the third cavities so that the first cavity and the third cavity are respectively connected to each other. Several third oil passage holes are opened through the third cavity facing the collars. One end of the first cavity is connected to an oil supply pipe. A rotary joint is connected to the oil supply pipe. The rotary joint is connected to an oil supply assembly.

[0009] The opening and closing mechanism includes several flow-blocking rings and a drive assembly for driving the flow-blocking rings to rotate. The flow-blocking rings correspond one-to-one with the third cavities arranged in an even or odd number along the axial direction of the roller body. Each flow-blocking ring is rotatably disposed in the corresponding third cavity. A fourth oil passage hole is opened through the flow-blocking ring. The fourth oil passage hole is connected between the third oil passage hole and the second oil passage hole. The drive assembly is connected to each flow-blocking ring and drives each flow-blocking ring to rotate and block the second oil passage hole accordingly.

[0010] A rotating mechanism, which is mounted on the frame and connected to the upper oil roller, drives the upper oil roller to rotate.

[0011] In one embodiment, the driving assembly includes electromagnets mounted on the frame and located at both ends of the roller body, and a first movable rod disposed within the roller body. A guide hole is provided through the partition plate along the axial direction of the roller body. The first movable rod is movably inserted into the guide hole. A connecting rod is provided on the first movable rod corresponding to a third cavity with a flow-blocking ring. A first guide shaft is provided on the connecting rod. A circumferential groove is recessed on the outer side of the flow-blocking ring. The first guide shaft is movably disposed within the groove. Magnets are provided at both ends of the first movable rod near the electromagnets. The electromagnets drive the first movable rod to reciprocate along the guide hole via the transmission magnets.

[0012] In one embodiment, the roller body has a flange extending radially along its periphery, and the inner side of the collar has a groove that mates with the flange. One end of the flange has a guide groove extending axially therein, and a second movable rod is movably disposed in the guide groove. A plurality of through holes communicating with the guide groove are opened through one side of the flange along its axial direction. A limit shaft is movably inserted into each through hole. A limit hole mates with the limit shaft is opened through the collar. A plurality of drive grooves are recessed along the axial direction on one side of the second movable rod. The drive grooves have inclined surfaces, and the inclined surfaces abut against one end of the limit shaft to drive the limit shaft to move axially along the through holes. The second movable rod and the flange are fixedly connected by bolts, and at this time the limit shaft is in the connected state of being inserted into the limit hole.

[0013] In one embodiment, mounting seats are symmetrically arranged on both sides of the conveyor belt on the frame. Each mounting seat has an open clamping groove. Connecting portions extend from both ends of the roller body. A connecting ring is rotatably mounted on the connecting portion via a bearing. The connecting ring is embedded in the clamping groove. A rotary cylinder is provided on the mounting seat. A clamping block is provided on the drive shaft of the rotary cylinder. The clamping block is driven by the rotary cylinder to clamp the connecting ring.

[0014] In one embodiment, the outer diameter of the connecting ring is smaller than the diameter of the roller body.

[0015] In one embodiment, the rotating mechanism includes a first motor, a main gear, and a transmission gear. The first motor is mounted on a mounting base, the main gear is mounted on the drive shaft of the first motor, and the transmission gear is co-centered on the connecting portion, meshing with the main gear.

[0016] In one embodiment, the oiling mechanism further includes a lifting assembly, which includes a second guide shaft and a screw respectively arranged vertically on the frame. The two ends of the screw are rotatably mounted on the frame via bearings. The mounting seat is sleeved on the second guide shaft via a linear bearing and is connected to the screw via a threaded connection.

[0017] In one embodiment, the lifting assembly further includes a second motor, which is fixedly mounted on the top of the frame. The output shaft of the second motor is connected to the top of the screw via a coupling, and is used to drive the screw to rotate around its own axis.

[0018] In one embodiment, a positioning pressure roller is provided on the frame above the conveyor belt. Several positioning pressure rollers are spaced apart along the conveyor belt conveying direction. Each positioning pressure roller is covered with an elastic rubber sleeve on its outer periphery. The positioning pressure roller is rotatably connected to the frame through a bracket.

[0019] In summary, the advantages of this invention over the prior art are:

[0020] The oil roller of this invention adopts a structure in which the roller body and the collar are detachably connected. The collars are distributed along the axial direction of the roller body. When a collar is worn, aged, or its first oil passage hole or water-permeable sponge is blocked, the corresponding collar can be disassembled and replaced individually without replacing the entire oil roller. This greatly reduces equipment maintenance costs, shortens maintenance time, and improves production continuity. With the cooperation structure of the roller body flange and the collar groove and the limiting shaft locking mechanism, the collar can be quickly disassembled and positioned, further improving the convenience of maintenance.

[0021] Furthermore, the roller body is divided into several independent third cavities by partitions. The first cavity and each third cavity are connected through corresponding second oil passage holes. The oil supplied by the oil supply component can be precisely distributed to each third cavity through the oil supply pipe, the first cavity, and the second oil passage holes, realizing segmented oil supply. With the intercepting ring of the opening and closing mechanism, the intercepting ring can be driven to rotate by the drive component according to the actual oiling needs of the cardboard, selectively blocking the corresponding second oil passage holes, thereby closing the oil supply in a specific area, avoiding excess oil seepage, effectively reducing oil waste, and adapting to cardboard processing scenarios with different widths and different areas of oiling needs. Especially for strip oiling needs, the corresponding collar corresponding to the cut-off oil supply area can be directly removed to structurally cut off the transmission path of oil between adjacent collars, reducing oil transmission and overflow, further improving the precise oil supply effect, and reducing oil waves.

[0022] Furthermore, the drive assembly uses an electromagnet and a magnet to drive the first movable rod to move back and forth. Through the cooperation of the connecting rod, guide shaft and the obstruction ring groove, the linear displacement is converted into the rotational motion of the obstruction ring, realizing the blocking and connection switching of the second oil passage. This structure does not require complex transmission components to be set outside the roller body. The overall structure is compact, the response speed is fast, and the action of each obstruction ring can be precisely controlled to ensure the accuracy of oil supply area control.

[0023] Furthermore, the mounting seats on both sides of the frame cooperate with the clamping grooves and connecting rings to quickly place the oiling roller. The rotating cylinder drives the clamping block to clamp the connecting ring, which can quickly complete the fixing and disassembly of the oiling roller, facilitating equipment maintenance. The outer diameter of the connecting ring is smaller than the diameter of the roller body, so the sleeve ring on the roller body can be directly removed axially after disassembly. For the strip oiling scenario of cardboard, the design of removing and cutting off the corresponding sleeve ring can effectively reduce the transmission and overflow of oil between the sleeve rings, avoid secondary oil splashing caused by oil residue and transmission between adjacent sleeve rings, ensure clear strip oiling boundary and no excess oil pollution, and further optimize the anti-oil splashing effect. Attached Figure Description

[0024] Figure 1 This is a perspective view of an oil-splatter-resistant cardboard oiling machine for processing paper packaging boxes, according to one embodiment of the present invention.

[0025] Figure 2 This is one of the cutaway views of an oil-splash-proof cardboard oiling machine for processing paper packaging boxes according to one embodiment of the present invention;

[0026] Figure 3 As one embodiment of the present invention Figure 2 Enlarged view of point A;

[0027] Figure 4 As one embodiment of the present invention Figure 2 Enlarged view of point B;

[0028] Figure 5 This is one of the exploded views of an oil-splash-proof cardboard oiling machine for processing paper packaging boxes according to one embodiment of the present invention;

[0029] Figure 6 This is a second cutaway view of an oil-splash-proof cardboard oiling machine for processing paper packaging boxes, according to one embodiment of the present invention.

[0030] Figure 7 This is the second exploded view of an oil-splashing cardboard oiling machine for processing paper packaging boxes, according to one embodiment of the present invention. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0032] like Figures 1 to 7 The present invention preferably provides an oiling machine for anti-splash cardboard in paper packaging box processing, comprising: a frame 1 with a conveyor belt 2 thereon; an oiling mechanism disposed on the frame 1 above the conveyor belt 2, comprising an oiling roller 4 rotatably disposed on the frame 1, and an oil supply assembly 5 disposed on the frame 1 for supplying oil to the oiling roller 4; the oiling roller 4 comprising a roller body 6, and a plurality of collars 7 detachably sleeved on the outer periphery of the roller body 6 and distributed along the axial direction of the roller body 6, wherein the collars 7 are respectively provided with first oil passage holes 8 and water-permeable sponges; the roller body 6 has a first cavity 9 and a second cavity 10 sequentially from the inside to the outside; the second cavity 10 is provided with partitions 11 evenly distributed along the axial direction of the roller body 6, and the partitions 11 divide the second cavity 10 into a plurality of third cavities 12; the first cavity 9 is provided with a plurality of second oil passage holes 13, and the second oil passage holes 13 and the third cavities 12 are respectively corresponding to each other, so that the first cavity 9 and the third cavity 12 are respectively provided with first oil passage holes 8 and third cavities 12. The third cavities 12 are interconnected. Each third cavity 12 has several third oil passage holes 91 that pass through it, corresponding to the collar 7. One end of each first cavity 9 is connected to an oil supply pipe 14, which is connected to a rotary joint. The rotary joint is connected to the oil supply assembly 5. The opening and closing mechanism includes several flow-blocking rings 15 and a drive assembly 16 for rotating the flow-blocking rings 15. The flow-blocking rings 15 are arranged in an even or odd number of positions axially with the third cavities 12 of the roller body 6. 2. Each flow-blocking ring 15 is rotatably disposed in the corresponding third cavity 12. A fourth oil passage hole 17 is provided through the flow-blocking ring 15. The fourth oil passage hole 17 is connected between the third oil passage hole 91 and the second oil passage hole 13. The driving assembly 16 is connected to each flow-blocking ring 15 to drive each flow-blocking ring 15 to rotate and block the second oil passage hole 13 accordingly. The rotating mechanism 18 is disposed on the frame 1 and connected to the upper oil roller 4 to drive the upper oil roller 4 to rotate.

[0033] The oil supply assembly is a relatively common existing technology, and its structure and principle will not be described in detail here. Its structure is equivalent to the oil supply assembly structure disclosed in Chinese patent CN222999041U.

[0034] Specifically, the frame serves as the installation foundation for the entire equipment, providing stable installation support for all components such as the transmission belt, oiling mechanism, opening and closing mechanism, rotating mechanism, and positioning pressure rollers, ensuring accurate assembly of each component and preventing deviation during operation. The transmission belt is mounted on the frame and is driven by an external power source (not shown) during operation. The anti-slip protrusions on its surface increase the friction between the belt and the cardboard, preventing slippage during cardboard conveying. The guide plates (not shown in the figure) at the feed end of the frame are symmetrically arranged on both sides of the transmission belt. The spacing can be adjusted according to the width of the cardboard to accurately guide the cardboard entering the equipment, ensuring that the cardboard is smoothly conveyed to the area below the oiling mechanism, providing a stable feeding guarantee for subsequent oiling operations.

[0035] The oiling mechanism is mounted on the frame and located above the drive belt. Its core function is to evenly apply oil to the surface of the cardboard. The basic structure includes an oil supply assembly and an oiling roller. Its working principle is as follows:

[0036] Oil supply assembly: The oil supply assembly is fixedly installed on the frame. Its core function is to store oil and stably deliver oil to the upper oil roller. During operation, the oil supply assembly pressurizes the oil through its own pump body (not shown) and delivers it to the rotary joint. The rotary joint then transmits the oil to the oil delivery pipe, providing stable power and flow for the oil supply to the upper oil roller. This ensures that the oil is continuously and evenly delivered to the inside of the upper oil roller, avoiding oil supply interruption or pressure fluctuation.

[0037] Oiling roller: The oiling roller is rotatably mounted on the frame. Its core function is to evenly transfer oil to the surface of the cardboard. The basic structure includes the roller body, collar, first cavity, second cavity, third cavity, second oil passage hole, and third oil passage hole. The specific working process is as follows: First, the oil supply pipe delivers oil to the first cavity of the oiling roller. Several second oil passage holes on the first cavity correspond one-to-one with the third cavity of the roller body. Oil flows from the first cavity into the corresponding third cavity through the second oil passage holes. The oil inside the third cavity flows through several through holes... The oil flows out through the third oil passage and enters the inner side of the collar. The collar is detachably fitted on the outer periphery of the roller. The oil finally seeps out through the first oil passage on the collar to the water-permeable sponge on the collar surface. The water-permeable sponge absorbs the oil and distributes it evenly on the outer periphery of the collar. When the paperboard is conveyed to the area below the collar by the transmission belt, the rotating oiling roller contacts the paperboard surface through the collar. The oil on the water-permeable sponge is evenly applied to the paperboard surface, completing the oiling operation. At the same time, the oiling roller rotates synchronously with the paperboard conveying direction to ensure a smooth oiling process and avoid scratching the paperboard surface.

[0038] Working principle of the opening and closing mechanism: The opening and closing mechanism is used to control the oil supply to a specific area, adapting to the oiling requirements of different cardboards. The core components include a flow-blocking ring and a drive assembly. The working principle is as follows:

[0039] Cut-off ring: The cut-off ring corresponds one-to-one with the third cavity arranged in even or odd numbers along the axial direction of the roller body, and is rotatably set inside the corresponding third cavity. A fourth oil passage hole is opened through the cut-off ring. Under normal oil supply conditions, the fourth oil passage hole is connected with the second and third oil passage holes, and the oil can flow smoothly from the first cavity through the second, fourth, and third oil passage holes into the sleeve ring. When it is necessary to shut off the oil supply in the corresponding area, the cut-off ring rotates, and its fourth oil passage hole is misaligned with the second oil passage hole. The ring body of the cut-off ring blocks the second oil passage hole, preventing the oil from flowing from the first cavity into the corresponding third cavity, thereby shutting off the oil supply in that area and avoiding excess oil seepage and oil splashing.

[0040] Drive component: The drive component is connected to each throttling ring. Its core function is to provide power for the rotation of the throttling ring. Through the transmission structure, it drives the throttling ring to rotate, thereby switching the oil supply on and off.

[0041] Working principle of the rotating mechanism: The rotating mechanism is set on the frame and connected to the upper oil roller. Its core function is to provide power for the rotation of the upper oil roller, drive the upper oil roller to rotate synchronously with the paperboard conveying rhythm, and ensure the smoothness of the oiling operation.

[0042] Furthermore, the drive assembly 16 includes electromagnets 19 disposed on the frame 1 and located at both ends of the roller body 6, and a first movable rod 20 disposed within the roller body 6. A guide hole 21 is provided through the partition plate 11 along the axial direction of the roller body 6. The first movable rod 20 is movably inserted into the guide hole 21. A connecting rod 22 is provided on the first movable rod 20 corresponding to the third cavity 12 with the flow-blocking ring 15. A first guide shaft 24 is provided on the connecting rod 22. A circumferential groove 23 is recessed on the outer side of the flow-blocking ring 15. The first guide shaft 24 is movably disposed within the groove 23. Magnets 99 are provided at both ends of the first movable rod 20 near the electromagnets 19. The electromagnets 19 drive the first movable rod 20 to move back and forth along the guide hole 21 via the transmission magnets 99.

[0043] Specifically, the drive assembly adopts a structure combining electromagnets and mechanical transmission to achieve precise rotation control of the intercepting ring. The specific working process is as follows: Electromagnets are fixedly mounted on the frame and located at both ends of the roller body. The two electromagnets are independently controlled and do not interfere with each other. The first movable rod is movably inserted into the guide hole of the partition plate and can move back and forth along the roller body axis. Its two ends are respectively provided with magnets adapted to the corresponding electromagnets. A connecting rod is provided on the first movable rod at the position of the third cavity with the intercepting ring. The guide shaft on the connecting rod is movably embedded in the inclined groove on the outside of the intercepting ring. During operation, by controlling the energization state of the electromagnets on both sides respectively, the corresponding electromagnets generate a magnetic field and The magnet at the end of the first movable rod is individually attracted or repelled. Relying on the differentiated attraction and repulsion actions of the electromagnets on both sides, the first movable rod is precisely driven to move back and forth along the axial direction of the guide hole (including the reset action after displacement, which is achieved through the attraction and repulsion action of the electromagnets on both sides). When the first movable rod moves, it drives the connecting rod to move synchronously. The guide shaft on the connecting rod slides in the inclined groove of the throttling ring. Since the inclined groove is set at an angle along the circumference of the throttling ring, the linear displacement of the guide shaft is converted into the rotational motion of the throttling ring, which in turn drives the fourth oil passage hole on the throttling ring to rotate, realizing the connection or blocking of the fourth oil passage hole with the second oil passage hole, and achieving the purpose of precise control of the oil supply area.

[0044] Furthermore, the roller body 6 has a flange 25 extending radially around its periphery, and the inner side of the collar 7 has a groove 26 that mates with the flange 25. One end of the flange 25 has a guide groove 27 extending axially therein, and a second movable rod 28 is movably disposed in the guide groove 27. A plurality of through holes 29 communicating with the guide groove 27 are opened through one side of the flange 25 along its axial direction. A limiting shaft 30 is movably inserted into each through hole 29. A limiting hole 31 mates with the limiting shaft 30 is opened through the collar 7. A plurality of driving grooves 32 are recessed along one side of the second movable rod 28 along its axial direction. The driving grooves 32 have inclined surfaces, and the inclined surfaces abut against one end of the limiting shaft 30 to drive the limiting shaft 30 to move axially along the through holes 29. The second movable rod 28 and the flange 25 are fixedly connected by bolts, and at this time the limiting shaft 30 is in the connected state of being inserted into the limiting hole 31.

[0045] Specifically, the above structure is used to achieve quick assembly and disassembly and secure positioning of the collar and the roller body. The specific working process is as follows: The flange on the periphery of the roller body cooperates with the groove on the inner side of the collar to achieve radial positioning of the collar and the roller body, preventing the collar from rotating around the roller body circumferentially; When it is necessary to install the collar, align the groove of the collar with the flange and insert it, and move the second movable rod linearly along the axial direction of the guide groove. The drive groove on the second movable rod abuts against one end of the limiting shaft through the inner inclined surface. Due to the guiding effect of the inclined surface, the axial linear displacement of the second movable rod is converted into the axial displacement of the limiting shaft along the through hole, so that one end of the limiting shaft is inserted into the limiting hole of the collar, realizing the axial locking of the collar and the roller body; When it is necessary to disassemble the collar, move the second movable rod linearly in the opposite direction along the axial direction of the guide groove. The inclined surface of the drive groove disengages from the limiting shaft. Under its own gravity or the action of the reset structure, the limiting shaft retracts along the through hole, disengages from the limiting hole of the collar, releases the lock on the collar, and the collar can be removed from the roller body. The operation is convenient and efficient.

[0046] It is worth noting that when it is necessary to disassemble and move the second movable rod, only the bolts connecting the second movable rod to the flange need to be removed. Conversely, when it is necessary to fix the second movable rod, the bolts need to be reinstalled to fix the second movable rod.

[0047] Furthermore, mounting seats 33 are symmetrically arranged on both sides of the conveyor belt 2 on the frame 1. The mounting seats 33 have clamping grooves 34 with an upper opening. Connecting parts 35 extend from both ends of the roller body 6. Connecting rings 36 are rotatably arranged on the connecting parts 35 through bearings. The connecting rings 36 are embedded in the clamping grooves 34. A rotary cylinder 37 is provided on the mounting seat 33. A clamping block 38 is provided on the drive shaft of the rotary cylinder 37. The clamping block 38 is driven by the rotary cylinder 37 to clamp the connecting ring 36.

[0048] Specifically, the above structure is used to achieve quick installation, disassembly, and secure fixing of the upper oil roller. The specific working process is as follows: The mounting seats on the frame are symmetrically arranged on both sides of the transmission belt. The clamping grooves on the mounting seats have an open structure at the top, which facilitates the quick insertion of the connecting rings at both ends of the upper oil roller. The connecting rings are rotatably mounted on the connecting part of the roller body through bearings, and can rotate freely relative to the connecting part, preventing the mounting seat components from rotating when the upper oil roller rotates. When the connecting ring is placed in the clamping groove, the rotary cylinder is activated, and its drive shaft drives the clamping block to rotate and press downward. The clamping block abuts against the top of the connecting ring, firmly clamping the connecting ring in the clamping groove, thus fixing the upper oil roller. When it is necessary to disassemble the upper oil roller, the rotary cylinder drives the clamping block to rotate in the opposite direction, releasing the clamping of the connecting ring, so that the upper oil roller can be removed from the mounting seat, which facilitates equipment maintenance and upper oil roller repair.

[0049] Furthermore, the outer diameter of the connecting ring 36 is smaller than the diameter of the roller body 6. This facilitates direct disassembly and removal or installation of the collar along the axial direction of the roller body.

[0050] Furthermore, the rotating mechanism 18 includes a first motor 39, a main gear 40, and a transmission gear 41. The first motor 39 is mounted on the mounting base 33, the main gear 40 is mounted on the drive shaft of the first motor 39, and the transmission gear 41 is co-centered on the connecting part 35, and the transmission gear 41 meshes with the main gear 40.

[0051] Specifically, the rotating mechanism uses gear transmission to provide stable rotational power for the oiling roller. The specific working process is as follows: The first motor is fixedly mounted on the mounting base. The drive shaft of the first motor is connected to the main gear. The connection part of the transmission gear and the roller body is fixedly connected at the same center, and the transmission gear and the main gear mesh with each other. When the first motor starts, its drive shaft drives the main gear to rotate. The main gear drives the transmission gear to rotate through meshing transmission. The transmission gear then drives the roller body (the connection part is fixedly connected to the roller body) to rotate around its own axis, realizing the rotation of the oiling roller. Gear transmission has the characteristics of high transmission efficiency, precise transmission ratio, and strong stability, which can ensure that the rotation speed of the oiling roller is uniform and precisely matched with the paperboard conveying speed, ensuring that the oil is evenly applied to the surface of the paperboard.

[0052] Furthermore, the oiling mechanism also includes a lifting assembly, which includes a second guide shaft 42 and a screw 43 respectively arranged vertically on the frame 1. The two ends of the screw 43 are rotatably mounted on the frame 1 through bearings. The mounting seat 33 is sleeved on the second guide shaft 42 through a linear bearing, and the mounting seat 33 is connected to the screw 43 through a threaded connection.

[0053] Specifically, the lifting assembly is used to adjust the distance between the upper oil roller and the transmission belt to adapt to the oiling requirements of paperboards of different thicknesses. The specific working process is as follows: The guide shaft and the screw are vertically mounted on the frame. The two ends of the screw are rotatably connected to the frame through bearings. The mounting seat is sleeved on the guide shaft through a linear bearing and can slide vertically along the guide shaft. At the same time, the mounting seat is threadedly engaged with the screw through a screw sleeve. When it is necessary to adjust the height of the upper oil roller, the screw is driven to rotate. The rotational motion of the screw is converted into the vertical displacement of the mounting seat through the threaded engagement. The mounting seat drives the upper oil roller to rise and fall synchronously, thereby adjusting the distance between the upper oil roller and the transmission belt. The guide shaft guides the lifting and lowering of the mounting seat, preventing the mounting seat from deviating during the lifting and lowering process, ensuring that the upper oil roller rises and falls smoothly and is adjusted accurately.

[0054] Furthermore, the lifting assembly also includes a second motor 44, which is fixedly mounted on the top of the frame 1. The output shaft of the second motor 44 is connected to the top of the screw 43 via a coupling, and is used to drive the screw 43 to rotate around its own axis.

[0055] Specifically, the second motor is fixedly mounted on the top of the frame, and its output shaft is connected to the top of the screw via a coupling. When the height of the upper oil roller needs to be adjusted, the second motor starts, and its output shaft drives the screw to rotate around its own axis. The screw, through its threaded engagement with the screw sleeve on the mounting base, drives the mounting base to rise and fall vertically along the guide shaft, thereby driving the upper oil roller to rise and fall. By controlling the forward and reverse rotation of the second motor, the mounting base can be raised or lowered, precisely adjusting the distance between the upper oil roller and the transmission belt to accommodate cardboard of different thicknesses. This eliminates the need for manual adjustment and improves operational convenience.

[0056] Furthermore, a positioning pressure roller 45 is provided on the frame 1 above the conveyor belt 2. Several positioning pressure rollers 45 are spaced apart along the conveying direction of the conveyor belt 2. Each positioning pressure roller 45 is covered with an elastic rubber sleeve on its outer periphery. The positioning pressure roller 45 is rotatably connected to the frame 1 through a bracket.

[0057] Specifically, several positioning pressure rollers are spaced apart along the conveyor belt direction to evenly press the cardboard throughout the entire conveying process, avoiding local areas without pressure that could cause the cardboard to warp. The elastic rubber sleeve on the outer periphery of the positioning pressure roller has a certain elastic deformation capacity, which can adapt to cardboard of different thicknesses, while buffering the pressing force to prevent the cardboard from being deformed or scratched.

[0058] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-splashing cardboard coating machine for processing paper packaging boxes, characterized in that, include: A frame (1) on which a conveyor belt (2) is mounted; The oiling mechanism is located on the frame (1) above the conveyor belt (2), and includes an oiling roller (4) rotatably mounted on the frame (1) and an oiling assembly (5) mounted on the frame (1) for supplying oil to the oiling roller (4). The oiling roller (4) includes a roller body (6) and several collars (7) detachably sleeved on the outer periphery of the roller body (6) and distributed along the axial direction of the roller body (6). The collars (7) are respectively provided with a first oil passage hole (8) and a water-permeable sponge. The roller body (6) has a first cavity (9) and a second cavity (10) from the inside to the outside. The second cavity (10) is provided with partitions (11) evenly distributed along the axial direction of the roller body (6). The partitions (11) divide the second cavity (10) into several third cavities (12). The first cavity (9) is provided with a plurality of second oil passage holes (13), and the second oil passage holes (13) are provided in a one-to-one correspondence with the third cavity (12) so that the first cavity (9) and the third cavity (12) are respectively connected to each other. The third cavity (12) is provided with a plurality of third oil passage holes (91) corresponding to the collar (7). One end of the first cavity (9) is connected to an oil supply pipe (14), and a rotary joint is connected to the oil supply pipe (14). The rotary joint is connected to the oil supply assembly (5). The opening and closing mechanism includes a plurality of flow-blocking rings (15) and a drive assembly (16) for driving the flow-blocking rings (15) to rotate. The flow-blocking rings (15) correspond one-to-one with the third cavities (12) arranged in an even or odd number of positions along the axial direction of the roller body (6). Each flow-blocking ring (15) is rotatably disposed in the corresponding third cavity (12). A fourth oil passage hole (17) is provided through the flow-blocking ring (15). The fourth oil passage hole (17) is connected between the third oil passage hole (91) and the second oil passage hole (13). The drive assembly (16) is connected to each flow-blocking ring (15) to drive each flow-blocking ring (15) to rotate and correspondingly block the second oil passage hole (13). A rotating mechanism (18) is mounted on the frame (1) and connected to the upper oil roller (4) to drive the upper oil roller (4) to rotate.

2. The oil-splashing cardboard oiling machine for processing paper packaging boxes according to claim 1, characterized in that: The drive assembly (16) includes an electromagnet (19) mounted on the frame (1) and located at both ends of the roller body (6), and a first movable rod (20) mounted inside the roller body (6). A guide hole (21) is provided through the partition plate (11) along the axial direction of the roller body (6). The first movable rod (20) is movably inserted into the guide hole (21). A connecting rod (22) is provided on the first movable rod (20) in the third cavity (12) with a flow-blocking ring (15). A first guide shaft (24) is provided on the connecting rod (22). A groove (23) is recessed along the circumference on the outer side of the flow-blocking ring (15). The first guide shaft (24) is movably mounted in the groove (23). Magnets (99) are provided at both ends of the first movable rod (20) near the electromagnet (19). The first movable rod (20) is driven to move back and forth along the guide hole (21) by the electromagnet (19) and the drive magnets (99).

3. The oiling machine for anti-splatter cardboard in paper packaging box processing according to claim 1, characterized in that: The roller body (6) has a flange (25) extending radially around its periphery. The inner side of the collar (7) has a groove (26) that mates with the flange (25). One end of the flange (25) has a guide groove (27) extending axially. A second movable rod (28) is movably disposed in the guide groove (27). A plurality of through holes (29) communicating with the guide groove (27) are opened axially on one side of the flange (25). A limit shaft (30) is movably inserted into each through hole (29). The collar (7) The upper part has a limiting hole (31) that cooperates with the limiting shaft (30). The second movable rod (28) has a plurality of driving grooves (32) recessed along its axial direction on one side. The driving grooves (32) have inclined surfaces, which abut against one end of the limiting shaft (30) to drive the limiting shaft (30) to move axially along the through hole (29). The second movable rod (28) and the flange (25) are fixedly connected by bolts, and at this time the limiting shaft (30) is in the connection state of being inserted into the limiting hole (31).

4. The oiling machine for anti-splatter cardboard in paper packaging box processing according to claim 1, characterized in that: The frame (1) is symmetrically provided with mounting seats (33) on both sides of the conveyor belt (2). The mounting seats (33) have clamping grooves (34) with an upper opening. The roller body (6) has connecting parts (35) extending from both ends. The connecting parts (35) are provided with connecting rings (36) rotatably mounted on the connecting parts (35) via bearings. The connecting rings (36) are embedded in the clamping grooves (34). The mounting seats (33) are provided with rotary cylinders (37). The drive shaft of the rotary cylinders (37) is provided with clamping blocks (38). The clamping blocks (38) are driven by the rotary cylinders (37) to clamp the connecting rings (36).

5. An oil-splashing cardboard oiling machine for processing paper packaging boxes according to claim 4, characterized in that: The outer diameter of the connecting ring (36) is smaller than the diameter of the roller body (6).

6. The oil-splashing cardboard coating machine for processing paper packaging boxes according to claim 4, characterized in that: The rotating mechanism (18) includes a first motor (39), a main gear (40) and a transmission gear (41). The first motor (39) is mounted on the mounting base (33). The main gear (40) is mounted on the drive shaft of the first motor (39). The transmission gear (41) is co-centered on the connecting part (35). The transmission gear (41) meshes with the main gear (40).

7. An oil-splashing cardboard oiling machine for processing paper packaging boxes according to claim 4, characterized in that: The oiling mechanism also includes a lifting assembly, which includes a second guide shaft (42) and a screw (43) respectively arranged vertically on the frame (1). The two ends of the screw (43) are rotatably mounted on the frame (1) through bearings. The mounting seat (33) is sleeved on the second guide shaft (42) through a linear bearing, and the mounting seat (33) is connected to the screw (43) through a threaded connection.

8. An oil-splashing cardboard oiling machine for processing paper packaging boxes according to claim 7, characterized in that: The lifting assembly also includes a second motor (44), which is fixedly mounted on the top of the frame (1). The output shaft of the second motor (44) is connected to the top of the screw (43) via a coupling, and is used to drive the screw (43) to rotate around its own axis.

9. An oil-splashing cardboard oiling machine for processing paper packaging boxes according to claim 1, characterized in that: Positioning rollers (45) are provided on the frame (1) above the conveyor belt (2). Several positioning rollers (45) are spaced apart along the conveying direction of the conveyor belt (2). Each positioning roller (45) is fitted with an elastic rubber sleeve on its outer circumference. The positioning rollers (45) are rotatably connected to the frame (1) through a bracket.

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