Line pressing device for corrugated carton printing grooving machine

Abstract

The invention relates to the technical field of corrugated carton processing, in particular to a line pressing device for a corrugated carton printing grooving machine, which comprises a roller shaft, the roller shaft is composed of a roller body and positioning grooves formed in the surface of the roller body in a circumferential array, a cooling mechanism is arranged in the roller body, and the cooling mechanism comprises mounting grooves formed in two ends of the roller body. And the spiral vent groove is formed in the roller body, a spiral oil pipe is fixedly mounted on the inner wall of the spiral vent groove, the two ends of the spiral vent groove and the two ends of the spiral oil pipe extend into the mounting groove, and the inner wall of the mounting groove is rotationally connected with a rotating disc through a bearing. According to the line pressing device for the corrugated carton printing grooving machine, gas-oil double-medium cooling (spiral vent groove high-pressure airflow and spiral oil pipe heat conduction oil circulation) is adopted, and contact heat conduction of the roller body and the line pressing convex disc is matched, so that the working temperature of the roller body and the line pressing convex disc is stable; and the problems of indentation deformation and surface carbonization of the paperboard caused by high temperature are effectively solved.

Description

Technical Field

[0001] This application relates to the field of corrugated cardboard box processing technology, and in particular to a creasing device for a corrugated cardboard box printing and slotting machine. Background Technology

[0002] As a core piece of packaging machinery, the integration level of printing and slotting machines directly affects production efficiency and product quality. With the surge in demand for corrugated boxes from the logistics industry, modern printing and slotting machines have evolved into composite processing systems integrating printing, slotting, crease pressing, corner cutting, and edge trimming. The quality stability of the crease pressing process directly determines the box forming accuracy, while heat accumulation in high-speed continuous production modes has become a key bottleneck restricting equipment performance improvement.

[0003] Currently, the industry generally faces the problem of insufficient heat dissipation performance of the pressing cams on the pressing equipment under high-speed friction conditions. This causes the temperature to rise sharply to dangerous levels after continuous operation, which seriously affects the service life of the equipment. In addition, the carbonization of the cardboard caused by high temperature results in a product bursting defect rate that exceeds the industry's allowable standard, affecting the finished product quality pass rate.

[0004] Therefore, this application provides a creasing device for a corrugated cardboard box printing slotting machine. Summary of the Invention

[0005] The purpose of this application is to solve at least one technical problem raised in the background art.

[0006] This application provides a creasing device for a corrugated carton printing slotting machine, including a roller shaft, the roller shaft being composed of a roller body and positioning grooves arranged in a circumferential array on the surface of the roller body.

[0007] The roller body is equipped with a cooling mechanism, which includes mounting grooves at both ends of the roller body and a spiral ventilation groove inside the roller body. A spiral oil pipe is fixedly installed on the inner wall of the spiral ventilation groove. Both ends of the spiral ventilation groove and the spiral oil pipe extend into the interior of the mounting groove. A rotating disk is rotatably connected to the inner wall of the mounting groove through a bearing. An air inlet pipe and an oil inlet pipe are fixedly installed on the surface of the rotating disk. One end of the oil inlet pipe is rotatably connected to one end of the spiral oil pipe through a rotary joint.

[0008] A modular pressure cam is mounted on the surface of the roller. The modular pressure cam includes two separate metal bases. Ceramic inserts are welded to the surface of the metal bases with high-temperature solder. Positioning pins and positioning holes are respectively provided on the opposite surfaces of the two metal bases. Two threaded holes are symmetrically opened on the surface of one metal base, and bolt holes are opened on the surface of the other metal base. Countersunk holes are opened on the inner walls of the bolt holes, and fixing bolts are provided on the inner walls of the bolt holes. Positioning blocks that are adapted to the positioning grooves on the roller surface are symmetrically fixed on the inner ring surfaces of the two metal bases. Threaded locking holes are opened on the surfaces of the two metal bases. Locking bolts are threadedly connected to the inner walls of the threaded locking holes, and one end of the threaded locking hole passes through the positioning block.

[0009] By adopting the above technical solution, using two metal bases and ceramic inserts welded to the metal bases in conjunction with fixing bolts, the modular creasing cam can be easily installed on the roller body. The spiral ventilation grooves and spiral oil pipes on the roller body are switched in conjunction with the temperature control valve, and the roller body can be cooled by compressed air or cooling oil. Furthermore, the modular creasing cam is in contact with the roller body, which can dissipate heat from the modular creasing cam, effectively reducing the heat on the modular creasing cam.

[0010] Preferably, a water-cooling mechanism is provided above the modular pressure plate. The water-cooling mechanism includes a mounting plate, two guide holes symmetrically opened on the surface of the mounting plate, guide rods that are slidably fitted on the inner walls of the two guide holes, guide blocks that are slidably fitted on the surfaces of the two guide rods, and a rotatable wheel connected to the opposite surfaces of the two guide blocks. Both ends of the guide rods are provided with external threads, and both ends of the guide rods are threaded with nuts. A protective cover is fixedly installed on the surface of the guide block, a water supply pipe is fixedly installed on the inner wall of the protective cover, and multiple atomizing nozzles are fixedly installed at equal intervals on the surface of the water supply pipe.

[0011] By adopting the above technical solution, cold water can be sprayed onto the surface of the bob wheel through the cooperation of the water supply pipe and the atomizing nozzle. When the modular crimping cam rotates, the friction between the modular crimping cam and the bob wheel can be used to drive the bob wheel to rotate. After the bob wheel rotates, the cold water sprayed by the atomizing nozzle can come into contact with the modular crimping cam, thereby further dissipating heat from the modular crimping cam.

[0012] Preferably, the surface of the guide rod is fitted with a compression spring that can drive the burr wheel to contact the ceramic insert.

[0013] By adopting the above technical solution, the elastic force of the compression spring can be used to drive the bobbin to always contact the modular crimping cam, and the compression amount of the compression spring can be adjusted by rotating the nut on the mounting plate.

[0014] Preferably, the protective cover is equipped with a wiping mechanism, which includes a rotating shaft fixedly installed on the inner wall of the protective cover, a wiping blade rotatably fitted on the surface of the rotating shaft, and a torsion spring between the rotating shaft and the wiping blade to drive the wiping blade to contact the brush wheel.

[0015] By adopting the above technical solution, the water scraper contacts the brush wheel, thereby squeezing excess water on the brush wheel into the protective cover, preventing excessive water on the brush wheel from dripping onto the modular pressure plate.

[0016] Preferably, the inner wall of the protective cover is fixedly equipped with a bottom rubber baffle and a side rubber baffle. One end of the bottom rubber baffle and the side rubber baffle are in contact with the axial surface and the two end faces of the brush, respectively. The surface of the protective cover is connected to a drain pipe, which is connected to an external dust collection system through a flexible hose.

[0017] By adopting the above technical solution, the water scraped off by the scraper can be quickly discharged using the drain pipe, and the bottom rubber baffle and side rubber baffle can intercept water from flowing out from the gap between the protective cover and the brush wheel.

[0018] Preferably, the surface of the brush wheel is provided with a circular clearance groove for the ceramic insert to pass through, and the bottom rubber baffle and the squeegee are respectively provided with a squeegee protrusion and a rubber baffle protrusion that contact the circular clearance groove at one end.

[0019] By adopting the above technical solution, the circular clearance groove is perfectly adapted to the ceramic inlay, thereby enabling the ceramic inlay to dissipate heat. The water scraping protrusion can scrape the water out of the circular clearance groove, and the rubber water-blocking protrusion can prevent water from flowing out of the circular clearance groove.

[0020] Preferably, the upper end of the mounting plate is provided with a positioning mechanism, which includes an upper positioning clamping plate, a guide post fixedly installed on the lower surface of the upper positioning clamping plate by bolts, a base plate fixedly installed on the lower end of the guide post, a lower positioning clamping plate slidably fitted on the surface of the guide post, a connecting plate fixedly installed on one side of the base plate, a cam rotatably connected to one end of the connecting plate, and a rotating rod fixedly installed on one end of the cam, with the lower end of the rotating rod fixedly connected to the upper surface of the mounting plate.

[0021] Preferably, a return spring is sleeved on the surface of the guide post, and the two ends of the return spring abut against the opposite surfaces of the upper positioning plate and the lower positioning plate, respectively.

[0022] By adopting the above technical solution, the reset spring can drive the lower positioning clamp away from the upper positioning clamp in the initial state. When the rotating rod is pulled, the maximum point of the cam will push the lower positioning clamp to rise, thereby driving the upper positioning clamp closer to the lower positioning clamp.

[0023] Preferably, a rectangular guide rail is clamped between the upper positioning clamp and the lower positioning clamp.

[0024] Preferably, a locking block is fixedly installed on the lower surface of the base plate, and positioning bolt holes are opened on the surfaces of the rotating rod and the locking block, with positioning bolts threaded into the inner walls of the positioning bolt holes.

[0025] By adopting the above technical solution, the upper positioning clamp and the lower positioning clamp can slide along the rectangular guide rail, thereby adjusting the position of the water cooling mechanism so that the bobbin on it is aligned with the modular pressure plate. After the lower positioning clamp and the upper positioning clamp are clamped by pulling the rotating rod, the positioning bolt is screwed into the bolt hole on the locking block, thereby fixing the rotating rod. At the same time as the rotating rod rotates, it can drive the bobbin to contact the modular pressure plate, which facilitates the locking of the water cooling mechanism and the positioning of the bobbin.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The creasing device for the corrugated carton printing slotting machine described in this application adopts air-oil dual-medium cooling (high-pressure airflow in a spiral ventilation groove + heat-conducting oil circulation in a spiral oil pipe), combined with heat conduction through contact between the roller and the creasing cam, so that the working temperature of the roller and the creasing cam is stable, effectively solving the problems of cardboard creasing deformation and surface carbonization caused by high temperature.

[0027] 2. The creasing device for the corrugated carton printing slotting machine described in this application uses a compression spring to press a ceramic insert against a nappe. The friction causes cold water to be evenly coated, which helps to cool the modular creasing convex plate. After a small amount of water adheres to the ceramic insert, it can instantly increase the moisture content of the fibers at the creasing point, enhance the flexibility of the fibers, and evenly distribute the stress when the creasing is bent, reducing the rate of bursting. The scraper removes water accumulated on the nappe. In conjunction with the bottom rubber baffle, the side rubber baffle, and the drain pipe, wastewater can be recycled, preventing water droplets from contaminating the cardboard.

[0028] 3. The creasing device for the corrugated carton printing slotting machine described in this application can be used to drive the lower positioning clamp and the upper positioning clamp to clamp the rectangular guide rail by pulling the rotating rod. Then, the positioning bolt is screwed into the bolt hole on the locking block to fix the rotating rod. At the same time as the rotating rod rotates, it can drive the bob wheel to contact the modular creasing cam, which facilitates the locking of the water cooling mechanism and the contact between the bob wheel and the creasing cam. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the roller shaft according to an embodiment of this application; Figure 2 This is a schematic cross-sectional view of the cooling mechanism according to an embodiment of this application; Figure 3 This is a schematic diagram of the overall structure of the pressure plate cam according to an embodiment of this application; Figure 4 This is a schematic diagram of the exploded structure of the pressure plate cam according to an embodiment of this application; Figure 5 This is a schematic diagram of the overall structure of the water-cooled cooling mechanism according to an embodiment of this application; Figure 6 This is a side sectional view of the water-cooled cooling mechanism according to an embodiment of this application; Figure 7 This is a schematic diagram of the overall structure of the wiper mechanism according to an embodiment of this application; Figure 8 This is a three-dimensional first-view structural diagram of the positioning mechanism according to an embodiment of this application; Figure 9 This is a three-dimensional second-view structural diagram of the positioning mechanism according to an embodiment of this application; Figure 10 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 100, roller shaft; 101, roller body; 102, positioning groove; 200. Cooling mechanism; 201. Spiral vent groove; 202. Spiral oil pipe; 203. Rotary disc; 204. Air inlet pipe; 205. Oil inlet pipe; 300. Pressure plate; 301. Metal base; 302. Ceramic insert; 303. Locating pin; 304. Locating hole; 305. Threaded hole; 306. Fixing bolt; 307. Locating block; 308. Locking bolt; 400. Water-cooled cooling mechanism; 401. Mounting plate; 402. Guide rod; 403. Guide block; 404. Compression spring; 405. Pulley; 406. Nut; 407. Protective cover; 408. Water supply pipe; 409. Atomizing nozzle; 500. Wiper mechanism; 501. Wiper blade; 502. Bottom rubber baffle; 503. Side rubber baffle; 504. Drain pipe; 505. Wiper protrusion; 506. Rubber baffle protrusion; 600. Positioning mechanism; 601. Upper positioning clamp; 602. Guide column; 603. Base plate; 604. Lower positioning clamp; 605. Connecting plate; 606. Cam; 607. Rotating rod; 608. Return spring; 609. Rectangular guide rail; 610. Locking block; 611. Positioning bolt. Detailed Implementation

[0031] The following combination Figures 1 to 10 This application will be described in further detail below.

[0032] Example 1 Please refer to the following carefully. Figure 1-2A creasing device for a corrugated carton printing and slotting machine, comprising a roller 100, wherein the roller 100 has positioning grooves 102 arranged in a circumferential array on the surface of the roller body 101.

[0033] A cooling mechanism 200 is provided inside the roller body 101. The cooling mechanism 200 includes mounting grooves at both ends of the roller body 101 and a spiral ventilation groove 201 inside the roller body 101. A spiral oil pipe 202 is fixedly installed on the inner wall of the spiral ventilation groove 201. Both ends of the spiral ventilation groove 201 and the spiral oil pipe 202 extend into the interior of the mounting groove. A rotating disk 203 is rotatably connected to the inner wall of the mounting groove through a bearing. An air inlet pipe 204 and an oil inlet pipe 205 are fixedly installed on the surface of the rotating disk 203. One end of the oil inlet pipe 205 is rotatably connected to one end of the spiral oil pipe 202 through a rotary joint.

[0034] Specifically, the spiral ventilation groove 201 and the spiral oil pipe 202 are switched in conjunction with a temperature control valve. Compressed air is injected into the spiral ventilation groove 201 through the air inlet pipe 204, forming a high-speed airflow that carries away the internal heat of the roller body 101. Alternatively, heat transfer oil is pumped into the spiral oil pipe 202 through the oil inlet pipe 205, and heat exchange is achieved on the roller body 101 through oil circulation. The rotating disk 203 is connected to the mounting groove by a bearing to ensure that the air inlet pipe 204 and the oil inlet pipe 205 can still stably transport the medium when the roller body 101 rotates at high speed. The rotary joint avoids pipe entanglement.

[0035] Please refer to this carefully. Figure 1 as well as Figure 3-4 A modular pressure cam 300 is mounted on the surface of the roller 100. The modular pressure cam 300 includes two separate metal bases 301. Ceramic inserts 302 are welded to the surface of the metal bases 301 by high-temperature solder. Positioning pins 303 and positioning holes 304 are respectively provided on the opposite surfaces of the two metal bases 301. Two threaded holes 305 are symmetrically opened on the surface of one metal base 301. Bolt holes are opened on the surface of the other metal base 301. Countersunk holes are opened on the inner wall of the bolt holes. Fixing bolts 306 are provided on the inner wall of the bolt holes. Positioning blocks 307 that are adapted to the positioning grooves 102 on the surface of the roller 101 are symmetrically fixed on the inner ring surfaces of the two metal bases 301. Threaded locking holes are opened on the surface of the two metal bases 301. Locking bolts 308 are threadedly connected to the inner wall of the threaded locking holes. One end of the threaded locking hole passes through the positioning block 307.

[0036] Specifically, the two metal bases 301 are precisely aligned by positioning pins 303 and positioning holes 304, and the ceramic inserts 302 fixed by high-temperature solder provide ultra-high wear resistance.

[0037] The working principle of this embodiment is as follows: the fixing bolt 306 passes through the countersunk hole and is threadedly connected to the threaded hole 305 to complete the axial pre-tightening. The positioning grooves 102 of the circumferential array on the surface of the roller body 101 and the positioning blocks 307 of the crease cam 300 form a radial constraint, reducing the circumferential angle error when the crease cam 300 is installed. The locking bolt 308 radially presses the roller body 101 to ensure the stability of the two metal bases 301. Loosening the fixing bolt 306 allows the removal of a single metal base 301, which facilitates the installation of the metal base 301. The use of air-oil dual-medium cooling, combined with the heat conduction of the contact between the roller body 101 and the crease cam 300, stabilizes the working temperature of the roller body 101 and the crease cam 300, effectively solving the problems of cardboard indentation deformation and surface carbonization caused by high temperature.

[0038] Example 2 Compared with Embodiment 1, another implementation of this application is as follows: Please refer to this carefully. Figure 5-7 A water-cooling mechanism 400 is provided above the modular pressure plate 300. The water-cooling mechanism 400 includes a mounting plate 401, two guide holes symmetrically opened on the surface of the mounting plate 401, guide rods 402 that are slidably fitted on the inner walls of the two guide holes, guide blocks 403 that are slidably fitted on the surfaces of the two guide rods 402, and a ferrule 405 that is rotatably connected to the opposite surfaces of the two guide blocks 403. Both ends of the guide rods 402 are provided with external threads, and both ends of the guide rods 402 are threadedly connected with nuts 406. A protective cover 407 is fixedly installed on the surface of the guide blocks 403 by bolts. A water supply pipe 408 is fixedly installed on the inner wall of the protective cover 407. Multiple atomizing nozzles 409 are fixedly installed at equal intervals on the surface of the water supply pipe 408. A compression spring 404 that can drive the ferrule 405 to contact the ceramic insert 302 is sleeved on the surface of the guide rods 402.

[0039] Specifically, the guide rod 402 passes through the guide hole of the mounting plate 401 and is fixed at both ends by nuts 406 to form an adjustable support frame. The guide block 403 slides along the guide rod 402, and the compression spring 404 provides constant pressure thrust to ensure that the bob wheel 405 always fits against the pressure plate 300. The water supply pipe 408 is connected to an external circulating water source, and the atomizing nozzle 409 sprays water mist with a diameter ≤50μm to cover the area of ​​the bob wheel 405. The preload of the compression spring 404 can be adjusted by rotating the nut 406.

[0040] The working principle of this embodiment is as follows: When the creasing cam 300 rotates, the friction between the creasing cam 300 and the brush wheel 405 causes it to rotate, and water mist is evenly coated on the creasing cam 300, thereby further dissipating heat from the creasing cam 300. In addition, after a small amount of water adheres to the ceramic insert 302, it can instantly increase the moisture content of the fiber at the indentation, enhance the fiber flexibility, and make the stress evenly distributed when the indentation is bent, thus reducing the rate of thread breakage.

[0041] Example 3 Compared with Embodiment 2, another implementation of this application is as follows: Please refer to this carefully. Figure 6-7 The protective cover 407 is equipped with a wiping mechanism 500. The wiping mechanism 500 includes a rotating shaft fixedly installed on the inner wall of the protective cover 407, a wiping blade 501 rotatably fitted on the surface of the rotating shaft, and a torsion spring between the rotating shaft and the wiping blade 501 that can drive the wiping blade 501 to contact the brush wheel 405.

[0042] Specifically, a torsion spring is installed on the rotating shaft to drive the wiper blade 501 to adhere to the surface of the brush wheel 405 with constant pressure. The polyurethane wiper protrusion 505 removes excess water remaining on the brush wheel 405, preventing excessive water on the brush wheel 405 from dripping onto the modular pressure plate 300.

[0043] The inner wall of the protective cover 407 is fixedly installed with a bottom rubber baffle 502 and a side rubber baffle 503. One end of the bottom rubber baffle 502 and the side rubber baffle 503 are in contact with the axial surface and the two end faces of the brush wheel 405, respectively. The surface of the protective cover 407 is connected to a drain pipe 504, which is connected to an external dust collection system through a hose.

[0044] Specifically, the bottom rubber baffle 502 and the side rubber baffle 503 are made of fluororubber and press the axial surface and two end faces of the brush wheel 405 respectively to form a water barrier. The scraped wastewater is discharged through the sewage pipe 504 and is pumped out in real time by the negative pressure dust collection system to realize wastewater recycling.

[0045] The surface of the brush wheel 405 is provided with a circular clearance groove for the ceramic insert 302 to pass through. The bottom rubber baffle 502 and the wiper blade 501 are respectively provided with a wiper protrusion 505 and a rubber baffle protrusion 506 that are in contact with the circular clearance groove.

[0046] Specifically, the gap between the circular clearance groove and the ceramic insert 302 is controlled at 0.5mm to ensure that both the ceramic insert 302 and the metal base 301 can contact the brush wheel 405 when rotating. The water scraper protrusion 505 can scrape the water out of the circular clearance groove, and the rubber water-blocking protrusion 506 can prevent water from flowing out of the circular clearance groove.

[0047] The working principle of this embodiment is as follows: the squeegee 501 can remove water accumulated on the brush wheel 405, and together with the bottom rubber baffle 502, the side rubber baffle 503 and the drain pipe 504, wastewater can be recycled and water droplets can be prevented from contaminating the cardboard.

[0048] Example 4 Compared with Embodiment 2, another implementation of this application is as follows: Please refer to this carefully. Figure 8-10The upper end of the mounting plate 401 is provided with a positioning mechanism 600. The positioning mechanism 600 includes an upper positioning clamping plate 601, a guide post 602 fixedly installed on the lower surface of the upper positioning clamping plate 601 by bolts, a base plate 603 fixedly installed on the lower end of the guide post 602, a lower positioning clamping plate 604 slidably fitted on the surface of the guide post 602, a connecting plate 605 fixedly installed on one side of the base plate 603, a cam 606 rotatably connected to one end of the connecting plate 605, and a rotating rod 607 fixedly installed on one end of the cam 606, with the lower end of the rotating rod 607 fixedly connected to the upper surface of the mounting plate 401.

[0049] A return spring 608 is fitted on the surface of the guide post 602, and the two ends of the return spring 608 abut against the opposite surfaces of the upper positioning clamp 601 and the lower positioning clamp 604, respectively.

[0050] Specifically, in the initial state, the return spring 608 can drive the lower positioning clamp 604 away from the upper positioning clamp 601. When the rotating rod 607 is pulled, it drives the cam 606 to rotate. At this time, the maximum point of the cam 606 will push the lower positioning clamp 604 to rise, thereby driving the upper positioning clamp 601 to approach the lower positioning clamp 604.

[0051] A rectangular guide rail 609 is clamped between the upper positioning clamp 601 and the lower positioning clamp 604. A locking block 610 is fixedly installed on the lower surface of the base plate 603. Positioning bolt holes are opened on the surfaces of the rotating rod 607 and the locking block 610. Positioning bolts 611 are threadedly connected to the inner wall of the positioning bolt holes.

[0052] Specifically, the upper positioning clamp 601 and the lower positioning clamp 604 can slide along the rectangular guide rail 609, thereby adjusting the position of the water cooling mechanism 400 so that the bob 405 on it is aligned with the modular pressure plate 300. After the positioning bolt 611 is screwed into the positioning bolt hole, the rotating rod 607 can be fixed.

[0053] The working principle of this embodiment is as follows: pulling the rotating rod 607 can drive the lower positioning clamp 604 and the upper positioning clamp 601 to clamp the rectangular guide rail 609. Then, the positioning bolt 611 is screwed into the bolt hole on the locking block 610, thereby fixing the rotating rod 607. At the same time as the rotating rod 607 rotates, it can drive the bob wheel 405 to contact the modular pressure plate 300, which facilitates the locking of the water cooling mechanism 400 and the contact between the bob wheel 405 and the pressure plate 300.

[0054] Working principle: Connect to an external air / oil source; The positioning block 307 is embedded in the positioning groove 102 of the roller body 101, and aligned with the circumferential angle; Two metal bases 301 are engaged with positioning holes 304 via positioning pins 303; The fixing bolt 306 passes through the countersunk hole and is screwed into the threaded hole 305 to apply axial preload; Tighten locking bolt 308 to radially compress roller 101 to complete circumferential fixation; Water supply pipe 408 is connected to a circulating water source; Sliding alignment: Push the mounting plate 401 to slide along the rectangular guide rail 609 so that the center of the fuzzy roller 405 is aligned with the ceramic insert 302; Quick locking operation: Press down the rotating rod 607 with one hand to drive the cam 606 to rotate to the maximum lift point, and the cam 606 profile lifts the lower positioning clamp 604 to move upward; Clamping guide rail: Cam 606 lifts the lower positioning clamping plate 604, generating clamping force to lock the rectangular guide rail 609; Bolt reinforcement: The positioning bolt 611 is screwed into the positioning threaded hole of the locking block 610 and the rotating rod 607; Rotate nut 406 to adjust the pressure of compression spring 404, so that the bobbin 405 fits against the crimping cam 300; The 504 drain pipe connects to the negative pressure dust collection system; Cooling phase: When the roller 101 rotates, the heat transfer oil / compressed air circulates in the spiral channel. The temperature control valve (not shown) automatically switches the medium according to the roller temperature: heat transfer oil circulation is activated when the temperature is >80℃, and compressed air is switched to heat dissipation when the temperature is ≤80℃. The 405 friction wheel is used to press the 300 thread-pressing cam and is coated with water mist to aid in cooling. The squeegee 501 removes water from the surface of the brush wheel 405, and the wastewater is recycled through the drain pipe 504. When a small amount of water adheres to the ceramic inlay 302, it can instantly increase the moisture content of the fibers at the indentation site, enhance the flexibility of the fibers, and evenly distribute the stress when the indentation is bent, thus reducing the rate of thread breakage.

[0055] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A creasing device for a corrugated cardboard box printing and slotting machine, characterized in that, include: The roller (100) is composed of a roller body (101) and positioning grooves (102) arranged in a circumferential array on the surface of the roller body (101); A cooling mechanism (200) is provided inside the roller body (101). The cooling mechanism (200) includes mounting grooves at both ends of the roller body (101) and a spiral ventilation groove (201) inside the roller body (101). A spiral oil pipe (202) is fixedly installed on the inner wall of the spiral ventilation groove (201). Both ends of the spiral ventilation groove (201) and the spiral oil pipe (202) extend into the interior of the mounting groove. A rotating disk (203) is rotatably connected to the inner wall of the mounting groove through a bearing. An air inlet pipe (204) and an oil inlet pipe (205) are fixedly installed on the surface of the rotating disk (203). One end of the oil inlet pipe (205) is rotatably connected to one end of the spiral oil pipe (202) through a rotary joint. A modular pressure punch (300) is mounted on the surface of the roller (100). The modular pressure punch (300) includes two separate metal bases (301). Ceramic inserts (302) are welded to the surface of the metal bases (301) with high-temperature solder. Positioning pins (303) and positioning holes (304) are respectively provided on the opposite surfaces of the two metal bases (301). Two threaded holes (305) are symmetrically opened on the surface of one of the metal bases (301), and the other metal base ( Bolt holes are provided on the surface of the two metal bases (301), and countersunk holes are provided on the inner wall of the bolt holes. Fixing bolts (306) are provided on the inner wall of the bolt holes. Positioning blocks (307) that are compatible with the positioning grooves (102) on the surface of the roller body (101) are symmetrically fixed on the inner ring surfaces of the two metal bases (301). Threaded locking holes are provided on the surface of the two metal bases (301), and locking bolts (308) are threadedly connected to the inner wall of the threaded locking holes. One end of the threaded locking hole passes through the positioning block (307).

2. The creasing device for a corrugated cardboard box printing slotting machine according to claim 1, characterized in that, A water-cooling mechanism (400) is provided above the modular pressure plate (300). The water-cooling mechanism (400) includes a mounting plate (401) with two guide holes symmetrically opened on the surface of the mounting plate (401). Guide rods (402) are slidably fitted on the inner walls of the two guide holes respectively. Guide blocks (403) are slidably fitted on the surfaces of the two guide rods (402). A bobbin (405) is rotatably connected to the opposite surfaces of the two guide blocks (403). Both ends of the guide rods (402) are provided with external threads. Both ends of the guide rods (402) are threaded with nuts (406). A protective cover (407) is fixedly installed on the surface of the guide block (403). A water supply pipe (408) is fixedly installed on the inner wall of the protective cover (407). Multiple atomizing nozzles (409) are fixedly installed at equal intervals on the surface of the water supply pipe (408).

3. The creasing device for a corrugated cardboard box printing slotting machine according to claim 2, characterized in that, The surface of the guide rod (402) is fitted with a compression spring (404) that can drive the bob wheel (405) to contact the ceramic insert (302).

4. The creasing device for a corrugated cardboard box printing slotting machine according to claim 2, characterized in that, The protective cover (407) is equipped with a wiping mechanism (500). The wiping mechanism (500) includes a rotating shaft fixedly installed on the inner wall of the protective cover (407), a wiping blade (501) rotatably fitted on the surface of the rotating shaft, and a torsion spring between the rotating shaft and the wiping blade (501) that can drive the wiping blade (501) to contact the brush wheel (405).

5. The creasing device for a corrugated cardboard box printing slotting machine according to claim 4, characterized in that, The inner wall of the protective cover (407) is fixedly installed with a bottom rubber baffle (502) and a side rubber baffle (503). One end of the bottom rubber baffle (502) and the side rubber baffle (503) are in contact with the axial surface and the two end faces of the brush wheel (405), respectively. The surface of the protective cover (407) is connected to a drain pipe (504), which is connected to an external dust collection system through a hose.

6. The creasing device for a corrugated cardboard box printing slotting machine according to claim 5, characterized in that, The surface of the brush wheel (405) is provided with a circular clearance groove for the ceramic insert (302) to pass through. The bottom rubber baffle (502) and the squeegee (501) are respectively provided with a squeegee protrusion (505) and a rubber baffle protrusion (506) that are in contact with the circular clearance groove.

7. The creasing device for a corrugated cardboard box printing slotting machine according to claim 2, characterized in that, The upper end of the mounting plate (401) is provided with a positioning mechanism (600). The positioning mechanism (600) includes an upper positioning clamping plate (601), a guide post (602) fixedly installed on the lower surface of the upper positioning clamping plate (601) by bolts, a base plate (603) fixedly installed on the lower end of the guide post (602), a lower positioning clamping plate (604) slidably fitted on the surface of the guide post (602), a connecting plate (605) fixedly installed on one side of the base plate (603), a cam (606) rotatably connected to one end of the connecting plate (605), and a rotating rod (607) fixedly installed on one end of the cam (606). The lower end of the rotating rod (607) is fixedly connected to the upper surface of the mounting plate (401).

8. The creasing device for a corrugated cardboard box printing slotting machine according to claim 7, characterized in that, A return spring (608) is sleeved on the surface of the guide post (602), and the two ends of the return spring (608) abut against the opposite surfaces of the upper positioning clamp (601) and the lower positioning clamp (604), respectively.

9. The creasing device for a corrugated cardboard box printing slotting machine according to claim 8, characterized in that, A rectangular guide rail (609) is held between the upper positioning clamp (601) and the lower positioning clamp (604).

10. The creasing device for a corrugated cardboard box printing slotting machine according to claim 7, characterized in that, A locking block (610) is fixedly installed on the lower surface of the base plate (603). The surfaces of the rotating rod (607) and the locking block (610) are provided with positioning bolt holes, and positioning bolts (611) are threadedly connected to the inner walls of the positioning bolt holes.

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