Feida conveying device of paper mounting machine

Abstract

The invention relates to a paper mounting machine feeder conveying device which comprises a machine body frame, a feeder head and a cardan shaft mechanism, the cardan shaft mechanism comprises a connecting sleeve, a connecting rod, a first universal coupling and a second universal coupling, the first universal coupling comprises a connecting shaft, a connecting shaft sleeve and a cross shaft, an oil inlet sleeve is rotationally connected to the outer side of the connecting shaft, and an oil outlet sleeve is rotationally connected to the outer side of the connecting shaft; an annular groove is formed in the outer side wall of the connecting shaft, a first oil channel is formed in the middle of the connecting shaft, a connecting oil channel communicating with the annular groove and the first oil channel is formed in the connecting shaft, a second oil channel is formed in the middle of the cross shaft in a penetrating mode, and a third oil channel is formed in the middle of the connecting rod. The first oil duct is connected with the second oil duct through a hose, the second oil duct is connected with the third oil duct through a hose, a plurality of lubricating oil holes penetrating out of the side wall of the connecting rod are formed in the connecting rod, and the lubricating oil holes are communicated with the third oil duct. According to the lubricating device, the purpose of continuously, stably and precisely lubricating a high-friction area under the dynamic working condition that the connecting rod continuously stretches out, draws back and rotates is achieved.

Description

Technical Field

[0001] This invention relates to the field of feeder paper feeding technology, and in particular to a feeder conveying device for a paper mounting machine. Background Technology

[0002] Feeder conveyors are widely used in paper mounting equipment, primarily for separating stacked sheets of paper one by one and steadily transporting them to the next process. The feeder head, as the core component performing the paper suction and feeding actions, typically transmits power through a universal joint mechanism and reciprocates within the machine frame to adapt to different paper stack heights and feeding rhythms.

[0003] In existing technologies, universal joint mechanisms often employ a telescopic structure to accommodate the movement of the feeder head. For example, a novel feeder conveying device with application number CN202211001069.7 includes a universal joint mechanism comprising a connecting sleeve, a connecting rod, and a universal coupling. One end of the connecting rod slides within the connecting sleeve, while the other end is connected to a power source via the universal coupling. The other end of the connecting sleeve is connected to the feeder head via another universal coupling. This structure maintains continuous power transmission during the feeder head's back-and-forth movement, exhibiting good synchronization and transmission stability.

[0004] However, in actual operation, the feeder head needs to be frequently and rapidly adjusted forward and backward, causing the connecting rod to continuously slide axially within the connecting sleeve, accompanied by rotational motion, creating a complex friction condition. This continuous relative motion makes the prismatic mating surfaces between the connecting rod and the connecting sleeve extremely prone to severe wear due to insufficient lubrication, leading to the following problems: 1. Increased frictional resistance leads to decreased power transmission efficiency and increased motor load; 2. As the clearance between parts gradually widens, it causes transmission vibration and increased noise, affecting paper feeding accuracy; 3. Localized overheating accelerates material fatigue and shortens the service life of components; Currently, conventional lubrication methods mostly involve periodically adding grease manually or pre-applying lubricating oil during assembly. However, these methods have significant drawbacks: 1. Manual lubrication has a long cycle and is not timely, making it difficult to guarantee the lubrication needs during continuous operation; 2. Uneven distribution of grease, failing to effectively cover high-speed sliding areas; 3. It lacks the ability to continuously supply oil to dynamic moving parts, and cannot meet the long-term stable operation requirements of automated and high-precision equipment.

[0005] Although some equipment attempts to use centralized lubrication systems, their oil supply paths are mostly fixed and cannot adapt to the constantly changing relative positions between the connecting rod and the connecting sleeve, resulting in oil circuit breakage, leakage, or inaccurate delivery to the friction interface.

[0006] Therefore, achieving continuous, stable, and precise lubrication of the sliding mating surfaces between the connecting sleeve and the connecting rod under continuous operation of the feeder head has become a pressing technical challenge in this field. Current technologies lack an effective solution that can simultaneously meet the dual requirements of dynamic motion and reliable lubrication, severely limiting the operational stability and service life of the feeder conveyor. Summary of the Invention

[0007] This invention proposes a feeder conveyor device for a paper mounting machine, which can effectively lubricate the connecting rod between the connecting sleeve and the connecting rod, thus solving the aforementioned problems existing in the prior art.

[0008] The technical solution of this invention is implemented as follows: A feeder conveying device for a paper mounting machine includes a machine frame and a feeder head that is movably arranged back and forth within the machine frame. A universal joint mechanism connected to the feeder head is provided on one side of the machine frame. A power input mechanism for driving the universal joint mechanism to rotate is also provided on the machine frame. The universal joint mechanism includes a connecting sleeve, a connecting rod, a first universal coupling, and a second universal coupling. One end of the connecting rod slides within the connecting sleeve, and the other end is connected to the power input mechanism via the first universal coupling. The other end of the connecting sleeve is connected to the feeder head via the second universal coupling. The first universal coupling includes a connecting shaft connected to the power input mechanism, a connecting sleeve fixedly sleeved on the connecting rod, and a cross shaft located between the connecting shaft and the connecting sleeve. The connecting shaft and the connecting sleeve... One end of the cross shaft is integrally formed with a universal joint fork. The upper and lower sides of the cross shaft are rotatably connected to the universal joint fork of the connecting shaft. The left and right sides of the cross shaft are rotatably connected to the universal joint fork of the connecting shaft sleeve. An oil inlet sleeve is rotatably connected to the outside of the connecting shaft. An oil inlet nozzle is connected to the oil inlet sleeve. An annular groove communicating with the oil inlet nozzle is provided on the outer wall of the connecting shaft. A first oil passage is opened in the middle of the connecting shaft, penetrating to the end facing the cross shaft. A connecting oil passage connecting the annular groove and the first oil passage is opened inside the connecting shaft. A second oil passage is opened through the middle of the cross shaft. A third oil passage is opened in the middle of the connecting rod. The first oil passage and the second oil passage, as well as the second oil passage and the third oil passage, are connected by flexible hoses. Several lubricating oil holes are opened on the connecting rod, penetrating to the outside of its side wall. The lubricating oil holes are connected to the third oil passage.

[0009] Preferably, the third oil passage extends axially from one end of the connecting rod toward the cross shaft to the middle of the connecting rod. The connecting rod has a radially arranged branched oil passage connected to the inner end of the third oil passage. The connecting rod has an equally distributed oil passage at both ends of the branched oil passage. The middle of the equally distributed oil passage is connected to the branched oil passage. Several annular connecting oil passages connect the two equally distributed oil passages. Multiple lubricating oil holes are distributed on each annular connecting oil passage.

[0010] Preferably, the connecting rod is prismatic, and the connecting sleeve has a prismatic fitting cavity penetrating one end therethrough. One end of the connecting rod slides and fits into the prismatic fitting cavity, and the lubricating oil holes on each of the annular connecting oil passages are distributed on each side of the connecting rod.

[0011] Preferably, a bearing seat is fixedly connected to the body frame, two guide rods are fixedly connected to the bearing seat, a sliding plate is provided on the guide rod, a guide sleeve that slides on the guide rod is fixedly connected to the sliding plate, and a bevel gear connecting plate is fixedly connected to the sliding plate. The power input mechanism includes a first bevel gear, a second bevel gear, a transmission prism, a third bevel gear, and a fourth bevel gear. The end of the transmission prism is rotatably connected to the bearing seat. The first bevel gear is rotatably connected to the body frame. The second bevel gear is fixedly connected to one end of the transmission prism and meshes with the first bevel gear. The third bevel gear is rotatably connected to the sliding plate and slides on the transmission prism. The fourth bevel gear is rotatably connected to the bevel gear connecting plate and fixedly connected to the connecting shaft. The third bevel gear meshes with the fourth bevel gear. The oil inlet sleeve is fixed to the bevel gear connecting plate. The body frame is provided with a feeder motor and a transmission mechanism for driving the first bevel gear to rotate.

[0012] Preferably, an outer convex ring is integrally formed on the outer side wall of the connecting shaft, the annular groove is formed on the outer convex ring, the oil inlet sleeve includes an assembly ring opening for the outer convex ring to rotate and engage, and a limiting plate is fixedly connected to the oil inlet sleeve for limiting the outer convex ring within the assembly ring opening.

[0013] Preferably, the fourth bevel tooth has a tooth lubrication channel that extends through it toward one end of the connecting shaft, the connecting shaft has a secondary connecting oil channel that leads to the first oil channel and then to the tooth lubrication channel, and the fourth bevel tooth has a plurality of tooth lubrication oil holes that extend from the tooth lubrication channel to the tooth groove.

[0014] Preferably, an oil seal is provided between the connecting shaft and the fourth bevel tooth, and sealing rings are provided on both sides of the annular groove between the oil inlet sleeve and the connecting shaft.

[0015] Preferably, the inner sidewall of the guide sleeve is provided with an inner ring oil groove, and a connecting pipe is connected between the guide sleeves on the two guide rods. The connecting pipe connects the inner ring oil grooves in the two guide sleeves, and a second oil inlet is connected to one of the guide sleeves leading to the inner ring oil groove.

[0016] Preferably, a lubricating sponge sleeve is fixedly connected to the fourth bevel tooth and slidably sleeved on the transmission rib, and a secondary connecting pipe extending above the lubricating sponge sleeve is connected to the connecting pipe, and a nozzle facing the lubricating sponge sleeve is connected to the secondary connecting pipe.

[0017] Preferably, the transmission mechanism includes a bevel gear synchronous pulley, a motor synchronous pulley, and a synchronous belt. The bevel gear synchronous pulley is fixedly connected to the first bevel gear. The feeder motor is fixedly mounted on the machine frame. The motor synchronous pulley is fixed on the output shaft of the feeder motor. The synchronous belt is fitted onto the bevel gear synchronous pulley and the motor synchronous pulley.

[0018] In summary, the beneficial effects of the present invention are as follows: 1. This invention features an oil inlet sleeve rotatably mounted on the outside of the connecting shaft of the first universal joint, with an oil inlet nozzle on the sleeve. The sleeve does not rotate with the connecting shaft. Inside the connecting shaft, an annular groove, connecting oil passage, and a first oil passage are designed. These, along with the second oil passage of the cross shaft and the third oil passage of the connecting rod, are connected via a flexible hose, creating a multi-stage oil circuit. Ultimately, lubricating oil is delivered through lubrication holes to the sliding mating surface between the connecting rod and the connecting sleeve. This structure achieves continuous, stable, and precise lubrication of high-friction areas under dynamic conditions of continuous back-and-forth movement of the feeder head and continuous extension, contraction, and rotation of the connecting rod. This effectively avoids wear, jamming, and transmission failure caused by insufficient lubrication, significantly improving the operational stability and service life of the universal joint mechanism. Simultaneously, the flexible hose connection adapts to the multi-directional swing of the cross shaft between the universal joint forks, ensuring uninterrupted and leak-free oil circuitry during complex movements, solving the technical challenge of traditional fixed oil circuits being unable to adapt to dynamic connections.

[0019] 2. By incorporating a third oil passage extending axially from the end of the connecting rod, and connecting a branched oil passage and a uniformly distributed oil passage at the end, and then distributing the lubricating oil evenly to the lubricating oil holes on all sides of the connecting rod circumferentially through multiple annular connecting oil passages, efficient and zonal control of the lubricating oil is achieved. Since the central region of the connecting rod is the part that experiences the most frequent sliding contact and the greatest stress with the connecting sleeve, this oil circuit design prioritizes lubrication supply to the central region, allowing lubricating oil to overflow preferentially from the central lubricating oil holes, forming an effective oil film. This significantly improves the lubrication effect in key friction areas, reduces localized dry friction and heat accumulation, and further extends the service life of the connecting rod and the connecting sleeve.

[0020] 3. The connecting rod adopts a prismatic structure that slides into the prismatic cavity of the connecting sleeve, enabling both torque transmission and axial sliding. Furthermore, multiple lubrication holes are evenly distributed on all sides of the connecting rod and connected to annular oil passages, ensuring adequate lubrication for all surfaces of the connecting rod.

[0021] 4. A tooth lubrication channel and tooth lubrication oil hole are set inside the fourth bevel gear, and it is connected to the first oil passage of the connecting shaft through the secondary connecting oil passage, realizing integrated lubrication in the power transmission path. While the lubricating oil is delivered to the connecting rod, it can be diverted to the tooth groove area of ​​the fourth bevel gear, automatically lubricating the meshing surfaces of the third and fourth bevel gears, reducing gear wear and noise, and improving transmission efficiency. This design requires no additional lubrication device, utilizing the main lubrication system to achieve multi-point oil supply, with a clever structure and low maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the first structure of the present invention; Figure 2 This is a schematic diagram of the second structure of the present invention; Figure 3 This is a schematic diagram of the third structure of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the bearing seat, guide rod, sliding plate, guide sleeve, universal joint mechanism, etc. in this invention; Figure 5 for Figure 4 A schematic diagram of the structure when observed from another angle; Figure 6 This is a schematic diagram of the universal joint mechanism in this invention after the sleeve has been removed; Figure 7 for Figure 6 A schematic diagram of the structure when observed from another angle; Figure 8 This is a schematic diagram of the sleeve structure in this invention; Figure 9 This is a schematic diagram of the universal joint mechanism in this invention; Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure along the AA direction; Figure 11 for Figure 10A partially enlarged schematic diagram of the section near the first universal joint; Figure 12 This is a schematic diagram of the connecting rod in this invention; Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure along the BB direction; Figure 14 This is an exploded structural diagram of the first universal coupling and the oil inlet sleeve in this invention; Figure 15 This is a schematic diagram of the structure of the fourth bevel tooth in this invention; Figure 16 This is a front view of the fourth bevel tooth in this invention; Figure 17 for Figure 16 Schematic diagram of the cross-sectional structure along the CC direction; Figure 18 This is a top view of the shaft seat, guide rod, sliding plate, and guide sleeve in this invention; Figure 19 for Figure 18 Schematic diagram of the cross-sectional structure along the DD direction.

[0024] In the diagram: 10. Body frame; 11. Feeder head; 2. Sleeve; 21. Prismatic mating cavity; 3. Connecting rod; 31. Third oil passage; 32. Lubricating oil hole; 33. Branched oil passage; 34. Evenly distributed oil passage; 35. Annular connecting oil passage; 4. First universal coupling; 41. Connecting shaft; 411. Outer convex ring; 412. Annular groove; 413. First oil passage; 414. Connecting oil passage; 415. Secondary connecting oil passage; 42. Coupling sleeve; 43. Cross shaft; 431. Second oil passage; 44. Universal joint fork; 45. Hose; 5. Second universal coupling; 6. Oil inlet sleeve; 61. Oil inlet nozzle; 62. Assembly ring; 63. Limiting plate; 71. Shaft seat; 72. Guide rod; 73. Sliding plate; 74. Guide sleeve; 741. Inner ring oil groove; 75. Bevel gear connecting plate; 76. First bevel gear; 77. Second bevel gear; 78. Transmission rib; 79. Third bevel gear; 80. Fourth bevel gear; 801. Gear lubrication channel; 802. Gear lubrication oil hole; 81. Connecting pipe; 82. Secondary connecting pipe; 83. Nozzle; 84. Second oil inlet; 85. Lubricating sponge sleeve; 86. Feeder motor; 87. Bevel gear synchronous pulley; 88. Motor synchronous pulley; 89. Synchronous belt; 90. Oil seal; 91. Sealing ring; 92. Support frame; 93. Lubricating oil control center. Detailed Implementation

[0025] The following is a combination of the embodiments of the present invention Figure 1-19The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: like Figures 1 to 19 As shown, this invention discloses a feeder conveyor device for a paper mounting machine, such as... Figures 1 to 3 As shown, the device includes a machine frame 10 and a feeder head 11 that is movably arranged back and forth within the machine frame 10. A universal joint mechanism connected to the feeder head 11 is provided on one side of the machine frame 10. The machine frame 10 also has a power input mechanism for driving the universal joint mechanism to rotate. The feeder head 11 itself is a prior art device used for separating and conveying paper, and the movement of the feeder head 11 is also described in prior art, such as... Figure 4 and Figure 5 As shown, the universal joint mechanism includes a connecting sleeve 2, a connecting rod 3, a first universal coupling 4, and a second universal coupling 5. The connecting rod 3 is prismatic, with one end slidingly fitted inside the connecting sleeve 2, allowing it to transmit torque while freely extending and retracting axially. The other end of the connecting rod 3 is connected to the power input mechanism via the first universal coupling 4, while the other end of the connecting sleeve 2 is connected to the feeder head 11 via the second universal coupling 5, ensuring stable transmission during the back-and-forth movement of the feeder head 11.

[0027] The first universal coupling 4 is the core component of the lubrication system of this invention, such as... Figure 6 , Figure 7 , Figure 10 , Figure 11 as well as Figure 14As shown, it specifically includes a connecting shaft 41 connected to the power input mechanism, a connecting sleeve 42 fixedly sleeved on the connecting rod 3, and a cross shaft 43 located between the connecting shaft 41 and the connecting sleeve 42. A universal joint fork 44 is integrally formed on the opposite end of the connecting shaft 41 and the connecting sleeve 42. The upper and lower sides of the cross shaft 43 are rotatably connected to the universal joint fork 44 of the connecting shaft 41, and the left and right sides of the cross shaft 43 are rotatably connected to the universal joint fork 44 of the connecting sleeve 42, forming a typical cross shaft 43 type universal joint structure, which can adapt to multi-angle swing. An oil inlet sleeve 62 is rotatably connected to the outside of the connecting shaft 41. The oil inlet sleeve 62 does not rotate with the connecting shaft 41, and an oil inlet nozzle 61 is connected to the oil inlet sleeve 62 for connecting to an external lubricating oil source. An integrally formed outer protruding ring 411 is provided on the outer side wall of the connecting shaft 41. An annular groove 412 is provided on the outer protruding ring 411. The annular groove 412 is connected to the oil inlet 61 to form the initial collection area of ​​lubricating oil. A first oil passage 413 is provided in the middle of the connecting shaft 41, extending through it toward the end of the cross shaft 43. A connecting oil passage 414 is provided inside the connecting shaft 41, connecting the annular groove 412 and the first oil passage 413. A second oil passage 431 is provided in the middle of the cross shaft 43, and a third oil passage 31 is provided in the middle of the connecting rod 3. The first oil passage 413 and the second oil passage 431, as well as the second oil passage 431 and the third oil passage 31, are connected by pressure-resistant hoses 45. The hoses 45 are made of flexible materials, such as polyurethane (PU) or PTFE composite hoses. The connecting rod 3 has several lubricating oil holes 32 extending through its sidewall. The lubricating oil holes 32 are connected to the third oil passage 31, thereby delivering lubricating oil through the lubricating oil holes 32 to the sliding mating surface between the connecting rod 3 and the connecting sleeve 2.

[0028] Further, such as Figure 13 As shown, the third oil passage 31 extends axially from one end of the connecting rod 3 toward the cross shaft 43 to the middle of the connecting rod 3. At the end of the third oil passage 31 of the connecting rod 3, there is a radially arranged branched oil passage 33. The connecting rod 3 has a uniformly distributed oil passage 34 at both ends of the branched oil passage 33. The middle of the uniformly distributed oil passage 34 is connected to the branched oil passage 33. There are several annular connecting oil passages 35 between the two uniformly distributed oil passages 34. On each annular connecting oil passage 35, there are several lubricating oil holes 32 that penetrate the side wall of the connecting rod 3. The lubricating oil flows out through these holes and directly lubricates the sliding mating surface between the connecting rod 3 and the connecting sleeve 2. Since the middle area of ​​the connecting rod 3 is the part that rubs most frequently with the connecting sleeve 2, the oil circuit design prioritizes lubrication in the middle to achieve efficient and uniform distribution of lubricating oil. It should also be noted that in order to open the annular connecting oil passage 35, the evenly distributed oil passage 34, and the branched oil passage 33, the connecting rod 3 can be manufactured separately and then welded together. This is a well-known technique to those skilled in the art.

[0029] Since the connecting rod 3 is prismatic, a prismatic fitting cavity 21 is formed on the connecting sleeve 2, penetrating one end of the connecting rod 3. One end of the connecting rod 3 slides into the prismatic fitting cavity 21. The prismatic structure of the connecting rod 3 and the prismatic fitting cavity 21 of the connecting sleeve 2 can slide together, which can transmit torque and realize axial sliding. On this basis, multiple lubrication holes 32 are evenly distributed on each side of the connecting rod 3 and are connected to the annular connecting oil passage 35 to ensure that each edge is adequately lubricated. This effectively prevents edge wear, loose fit and transmission vibration caused by uneven lubrication, and improves the accuracy and stability of power transmission.

[0030] like Figures 1 to 5 As shown, two bearing seats 71 are fixedly connected to the frame 10, and two guide rods 72 are fixedly connected between the two bearing seats 71. A sliding plate 73 is provided on the guide rod 72, and a guide sleeve 74, which slides on the guide rod 72, is fixedly connected to the sliding plate 73. The guide sleeve 74 ensures smooth movement of the sliding plate 73. A bevel gear connecting plate 75 is fixedly connected to the sliding plate 73. The power input mechanism includes a first bevel gear 76, a second bevel gear 77, a transmission prism 78, a third bevel gear 79, and a fourth bevel gear 80. The transmission prism 78 is prismatic. Its two ends are rotatably connected to the bearing 71. The first bevel tooth 76 is rotatably connected to the body frame 10. The second bevel tooth 77 is fixedly connected to one end of the transmission rib 78 and meshes with the first bevel tooth 76. The third bevel tooth 79 is rotatably connected to the sliding plate 73 and slides on the transmission rib 78, and can move back and forth with the sliding plate 73. The fourth bevel tooth 80 is rotatably connected to the bevel tooth connecting plate 75 and fixedly connected to the connecting shaft 41. The third bevel tooth 79 and the fourth bevel tooth 80 mesh to transmit power to the universal joint mechanism. The oil inlet sleeve 62 is fixed on the bevel tooth connecting plate 75 to ensure that the oil inlet sleeve 62 does not rotate with the connecting shaft 41, but moves synchronously with the bevel tooth connecting plate 75. In addition, the body frame 10 is provided with a feeder motor 86 and a transmission mechanism for driving the first bevel tooth 76 to rotate. The transmission mechanism specifically includes a bevel gear synchronous pulley 87, a motor synchronous pulley 88, and a synchronous belt 89. The bevel gear synchronous pulley 87 is fixedly connected to the first bevel gear 76, the feeder motor 86 is fixedly mounted on the body frame 10, the motor synchronous pulley 88 is fixed on the output shaft of the feeder motor 86, and the synchronous belt 89 is fitted on the bevel gear synchronous pulley 87 and the motor synchronous pulley 88 to form a complete power transmission chain.

[0031] like Figure 14 As shown, the oil inlet sleeve 62 includes an assembly ring opening 62 for the outer convex ring 411 to rotate and engage. The outer convex ring 411 of the connecting shaft 41 is embedded in the assembly ring opening 62 of the oil inlet sleeve 62. A limiting plate 63 is fixedly connected to the oil inlet sleeve 62 to limit the outer convex ring 411 within the assembly ring opening 62 and prevent it from axially dislodging.

[0032] like Figure 11 , Figures 15 to 17 As shown, a tooth lubrication channel 801 is formed within the fourth bevel gear 80, extending through it towards the connecting shaft 41. A secondary connecting oil passage 415, connecting the first oil passage 413 to the tooth lubrication channel 801, is formed within the connecting shaft 41. Several tooth lubrication oil holes 80 are formed within the fourth bevel gear 80, leading from the tooth lubrication channel 801 to the tooth groove. This structure allows a small amount of lubricating oil to be diverted to the fourth bevel gear 80, flowing from the tooth lubrication channel 801 through the tooth lubrication oil holes 80 to the tooth groove. The lubricating oil then lubricates the meshing surfaces of the third bevel gear 79 and the fourth bevel gear 80, achieving automatic lubrication of the gear transmission.

[0033] like Figure 11 As shown, in order to prevent lubricating oil leakage, an oil seal 90 is provided between the connecting shaft 41 and the fourth bevel tooth 80, and sealing rings 91 are provided on both sides of the annular groove 412 between the oil inlet sleeve 62 and the connecting shaft 41. The setting of the oil seal 90 and the sealing rings 91 are common knowledge to those skilled in the art, so they will not be described in detail here.

[0034] like Figure 5 , Figure 18 as well as Figure 19 As shown, an inner annular oil groove 741 is formed on the inner side wall of the guide sleeve 74, and a connecting pipe 81 is connected between the guide sleeves 74 on the two guide rods 72. The connecting pipe 81 connects the inner annular oil grooves 741 in the two guide sleeves 74, so that lubricating oil can simultaneously lubricate the sliding surfaces of the guide rods 72 and the guide sleeves 74 on both sides. One of the guide sleeves 74 is connected to a second oil inlet 84 leading to the inner annular oil groove 741 for introducing lubricating oil. This structure is used to introduce lubricating oil when the sliding plate 73 needs to move frequently. When the sliding plate 73 does not need to move, it is not necessary to introduce lubricating oil.

[0035] Additionally, a lubricating sponge sleeve 85 is fixedly connected to the fourth bevel tooth 80 and slidably sleeved on the transmission prism 78. A secondary connecting pipe 82 extending above the lubricating sponge sleeve 85 is connected to the connecting pipe 81, and a nozzle 83 facing the lubricating sponge sleeve 85 is connected to the secondary connecting pipe 82. Some lubricating oil is sprayed from the nozzle 83 through the secondary connecting pipe 82 and absorbed by the lubricating sponge sleeve 85. As the sliding plate 73 moves, the lubricating sponge sleeve continuously wipes the surface of the transmission prism 78, providing it with long-term lubrication and ensuring the smooth sliding of the third bevel tooth 79 on the prism.

[0036] like Figure 1As shown, a support frame 92 is provided on the upper side of the machine frame 10. A lubricating oil control center 93 is integrated on the support frame 92. This center includes a pump body and a control valve body, both of which are combinations of existing technologies. It is mainly used to control the timing and flow rate of lubricating oil delivery. The lubricating oil control center 93 can be connected to the oil inlet 61 and the second oil inlet 84 via a spiral retractable hose 45, accommodating the movement of the sliding plate 73. The system automatically supplies oil to each lubrication point according to preset time or operating parameters, achieving intelligent and centralized lubrication management of the entire system.

[0037] Furthermore, to prevent lubricating oil from dripping and contaminating the paper or the equipment environment, an oil collection tray can be added below the drive rod and guide rod. The oil collection tray is fixedly installed on the machine frame directly below the drive rod and guide rod, and is securely connected by bolts or other fasteners. The height of the oil collection tray should be adjusted appropriately to ensure that it can effectively receive dripping lubricating oil without affecting the normal operation of moving parts such as the sliding plate and feeder head.

[0038] It should also be noted that the terms used in this invention, such as "front," "rear," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeder conveying device for a paper mounting machine, comprising a machine frame and a feeder head movably disposed within the machine frame, wherein a universal joint mechanism connected to the feeder head is provided on one side of the machine frame, and a power input mechanism for driving the universal joint mechanism to rotate is also provided on the machine frame, the universal joint mechanism comprising a connecting sleeve, a connecting rod, a first universal coupling, and a second universal coupling, one end of the connecting rod slidingly engaging within the connecting sleeve, and the other end being connected to the power input mechanism via the first universal coupling, and the other end of the connecting sleeve being connected to the feeder head via the second universal coupling, characterized in that: The first universal coupling includes a connecting shaft connected to a power input mechanism, a coupling sleeve fixedly sleeved on a connecting rod, and a cross shaft located between the connecting shaft and the coupling sleeve. A universal joint fork is integrally formed on the opposite end of the connecting shaft and the coupling sleeve. The upper and lower sides of the cross shaft are rotatably connected to the universal joint fork of the connecting shaft, and the left and right sides of the cross shaft are rotatably connected to the universal joint fork of the coupling sleeve. An oil inlet sleeve is rotatably connected to the outer side of the connecting shaft, and an oil inlet nozzle is connected to the oil inlet sleeve. The wall is provided with an annular groove that communicates with the oil inlet. The middle of the connecting shaft is provided with a first oil passage that extends through it toward one end of the cross shaft. The inside of the connecting shaft is provided with a connecting oil passage that connects the annular groove and the first oil passage. The middle of the cross shaft is provided with a second oil passage. The middle of the connecting rod is provided with a third oil passage. The first oil passage and the second oil passage, as well as the second oil passage and the third oil passage, are connected by flexible hoses. The connecting rod is provided with several lubricating oil holes that extend through its side wall and are connected to the third oil passage.

2. The feeder conveyor device for a paper mounting machine according to claim 1, characterized in that: The third oil passage extends axially from one end of the connecting rod toward the cross shaft to the middle of the connecting rod. The connecting rod has a radially branched oil passage connected to the inner end of the third oil passage. The connecting rod has an equally distributed oil passage at both ends of the branched oil passage. The middle of the equally distributed oil passage is connected to the branched oil passage. Several annular connecting oil passages connect the two equally distributed oil passages. Multiple lubricating oil holes are distributed on each annular connecting oil passage.

3. The feeder conveyor device for a paper mounting machine according to claim 2, characterized in that: The connecting rod is prismatic in shape, and the connecting sleeve has a prismatic fitting cavity that penetrates one end of it. One end of the connecting rod slides and fits into the prismatic fitting cavity. The lubricating oil holes on each of the annular connecting oil passages are distributed on each side of the connecting rod.

4. The feeder conveyor device for a paper mounting machine according to claim 1, characterized in that: A bearing seat is fixedly connected to the machine frame. Two guide rods are fixedly connected to the bearing seat. A sliding plate is provided on the guide rod. A guide sleeve that slides on the guide rod is fixedly connected to the sliding plate. A bevel gear connecting plate is fixedly connected to the sliding plate. The power input mechanism includes a first bevel gear, a second bevel gear, a transmission prism, a third bevel gear, and a fourth bevel gear. The end of the transmission prism is rotatably connected to the bearing seat. The first bevel gear is rotatably connected to the machine frame. The second bevel gear is fixedly connected to one end of the transmission prism and meshes with the first bevel gear. The third bevel gear is rotatably connected to the sliding plate and slides on the transmission prism. The fourth bevel gear is rotatably connected to the bevel gear connecting plate and fixedly connected to the connecting shaft. The third bevel gear meshes with the fourth bevel gear. The oil inlet sleeve is fixed to the bevel gear connecting plate. A feeder motor and a transmission mechanism for driving the first bevel gear to rotate are provided on the machine frame.

5. The feeder conveyor device for a paper mounting machine according to claim 4, characterized in that: An outer convex ring is integrally formed on the outer side wall of the connecting shaft, and an annular groove is formed on the outer convex ring. The oil inlet sleeve includes an assembly ring opening for the outer convex ring to rotate and engage. A limiting plate for limiting the outer convex ring within the assembly ring opening is fixedly connected to the oil inlet sleeve.

6. The feeder conveyor device for a paper mounting machine according to claim 4, characterized in that: The fourth bevel tooth has a tooth lubrication channel that extends through it toward one end of the connecting shaft. The connecting shaft has a secondary connecting oil channel that leads from the first oil channel to the tooth lubrication channel. The fourth bevel tooth has several tooth lubrication oil holes that extend from the tooth lubrication channel to the tooth groove.

7. A feeder conveyor device for a paper mounting machine according to claim 6, characterized in that: An oil seal is provided between the connecting shaft and the fourth bevel tooth, and sealing rings are provided on both sides of the annular groove between the oil inlet sleeve and the connecting shaft.

8. The feeder conveyor device for a paper mounting machine according to claim 4, characterized in that: The inner wall of the guide sleeve is provided with an inner ring oil groove, and a connecting pipe is connected between the guide sleeves on the two guide rods. The connecting pipe connects the inner ring oil grooves in the two guide sleeves, and a second oil inlet is connected to one of the guide sleeves leading to the inner ring oil groove.

9. A feeder conveyor device for a paper mounting machine according to claim 8, characterized in that: A lubricating sponge sleeve is fixedly connected to the fourth bevel tooth and slidably sleeved on the transmission rib. A secondary connecting pipe extending above the lubricating sponge sleeve is connected to the connecting pipe, and a nozzle facing the lubricating sponge sleeve is connected to the secondary connecting pipe.

10. A feeder conveyor device for a paper mounting machine according to claim 4, characterized in that: The transmission mechanism includes a bevel tooth synchronous pulley, a motor synchronous pulley, and a synchronous belt. The bevel tooth synchronous pulley is fixedly connected to the first bevel tooth. The feeder motor is fixedly mounted on the machine frame. The motor synchronous pulley is fixed on the output shaft of the feeder motor. The synchronous belt is fitted onto both the bevel tooth synchronous pulley and the motor synchronous pulley.

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