A paper machine ropeless approach device
By designing limiting devices and adjustment mechanisms on the paper machine, the problem of paper deviation during cordless paper feeding was solved, achieving precise paper positioning and efficient paper delivery, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGKOU YULONG PAPER CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-26
Smart Images

Figure CN224412192U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of papermaking technology, and in particular to a cordless paper feeding device for a papermaking machine. Background Technology
[0002] Cordless paper feeding equipment is a key piece of equipment in papermaking for transferring wet paper sheets between different processes. Its core feature is that it does not rely on traditional paper feeding ropes. It is mainly used in the transfer of wet paper sheets between the forming section and the pressing section, and between the pressing section and the drying section of the papermaking machine.
[0003] When a paper feeder is installed on a paper machine during paper production, the air pump's jet nozzle is first installed at the inlet of the nozzle frame. When paper feeding is needed, the self-locking motor is started to rotate the nozzle frame to a certain angle, which will blow the paper in production to a certain height and guide it to the conveyor belt. At this time, the servo motor is started to drive one of the sprockets to rotate, which, under the transmission of the chain, can drive the other sprocket to rotate, thereby driving the shaft and the conveyor belt to rotate, guiding the paper that falls on the conveyor belt to the next processing stage. Because in the cordless paper feeding stage of traditional paper machines, the paper is easily affected by the airflow when it is sprayed from the nozzle frame to the conveyor belt, resulting in inaccurate paper positioning, which in turn affects the smooth progress of subsequent processing steps, reducing production efficiency and product quality. Utility Model Content
[0004] The technical problem this invention aims to solve is that in the cordless paper feeding stage of traditional papermaking machines, the paper is easily deflected by the airflow when it is sprayed from the nozzle frame onto the conveyor belt, resulting in inaccurate paper positioning, which in turn affects the smooth progress of subsequent processing steps, reducing production efficiency and product quality.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a cordless paper feeding device for a paper making machine, including a paper feeding frame and two sprockets. A nozzle frame is installed through one side of the paper feeding frame, and a self-locking motor is fixedly installed on one side of the paper feeding frame. The output end of the self-locking motor is fixedly installed on one side of the nozzle frame via a coupling. Round shafts are symmetrically installed through the inner wall of the paper feeding frame, and a conveyor belt is fitted onto the outer surface of the round shafts. A servo motor is fixedly installed on one side of the paper feeding frame, and the output end of the servo motor is fixedly connected to one side of one of the sprockets via a coupling through one side of the paper feeding frame. The other sprocket is fixedly installed on one side of one of the round shafts. Chains are fitted onto the outer surfaces of both sprockets. A limiting device is provided on one side of the paper feeding frame. The limiting device covers the top of the nozzle frame by installing a limiting cover at one end of the nozzle frame. In this way, after the nozzle frame blows the paper to a certain height, it will be limited and blocked by the limiting cover, and the paper will be guided to the conveyor belt, achieving the effect of preventing deviation and positioning.
[0006] The effect achieved by the above components is as follows: When the paper feeder is installed on the paper machine during the paper production process, the limiting device is first installed on the paper feeder, and its position is adjusted and fixed to limit the upper part of the nozzle frame, so that it is not easy to deviate when feeding the paper, which facilitates the smooth progress of subsequent processing steps, improves production efficiency and product quality. During the paper feeding operation, the air pump's air jet pipe is first installed at the inlet of the nozzle frame. When paper feeding is required, the self-locking motor can be started to drive the nozzle frame to rotate to a certain angle, which will blow the paper in production to a certain height and guide it to the conveyor belt. At this time, the servo motor is started to drive one of the sprockets to rotate, which, under the transmission of the chain, can drive the other sprocket to rotate, thereby driving the round shaft and the conveyor belt to rotate, guiding the paper falling on the conveyor belt to the next processing stage.
[0007] Preferably, the limiting device includes a limiting cover and two slide rails, wherein an adjustment mechanism is provided between one side of the limiting cover and the two slide rails; and a portable mechanism, wherein the portable mechanism is provided between the slide rail and one side of the paper feeder, for quickly installing and fixing the slide rail on the paper feeder, facilitating replacement and maintenance.
[0008] The effect achieved by the above components is as follows: By setting a limiting device, when the paper feeder is installed on the paper machine, the slide rail and the limiting cover can be fixedly installed on the paper feeder through the portable mechanism. Then, according to the actual use, the limiting cover can be slid to a certain position on the slide rail through the adjustment mechanism and fixed in place, so that the limiting cover can limit and block the top of the nozzle frame, thereby preventing deviation during the paper feeding process, ensuring accurate paper feeding positioning, facilitating subsequent processing, and improving production efficiency and product quality.
[0009] Preferably, the adjusting mechanism includes a bolt, and both ends of the limiting cover are provided with sliding grooves, wherein the slide rail is slidably installed in the inner wall of the sliding groove, a second threaded hole is provided on one side of the inner wall of the sliding groove, and a plurality of first threaded holes are provided on one side of the slide rail, wherein one end of the bolt is helically inserted into the inner wall of the second threaded hole and the first threaded hole.
[0010] The effect achieved by the above components is as follows: After the slide rail is fixed on the paper feeder by the adjustment mechanism, the limiting cover can be manually slid to a certain position on the slide rail through the slide groove according to the installation environment of the paper feeder. Then, the adjusting limiting cover is fixed on the slide rail by inserting the screw into the second threaded hole and the corresponding first threaded hole. This makes the limiting cover more flexible and practical during installation and use, and helps to improve the stability of the paper feeder operation and the overall applicability of the equipment.
[0011] Preferably, a connecting rope is fixedly installed on one side of the bolt, and one end of the connecting rope is fixedly installed on one side of the limiting cover.
[0012] The effect achieved by the above components is that by setting a connecting rope, the bolt can be limited to one side of the limiting cover, so that it is not easy to lose it after it is taken out during adjustment.
[0013] Preferably, guide plates are fixedly installed on both sides of one end of the protective cover, and the guide plates are located on the side of the limiting cover near the nozzle frame.
[0014] The effect achieved by the above-mentioned components is that by setting the guide plate, the protective area on both sides of the limiting cover near the nozzle frame can be extended, thereby improving the protective effect.
[0015] Preferably, the casual clothing mechanism includes a circular block, one side of which is fixedly mounted on one side of a paper feeder, and slots are provided on both sides of the paper feeder, wherein one end of a slide rail is inserted into the inner wall of the slot; an elastic rotating rod, one end of which is rotatably mounted on one side of the slide rail, and the inner wall of the other end is fitted onto the outer surface of the circular block; and a torsion spring, the inner wall of which is fitted onto the outer surface of one end of the elastic rotating rod, and both ends are fixedly mounted on one side of the slide rail and one side of the elastic rotating rod, respectively.
[0016] The effect achieved by the above components is as follows: By setting up a convenient mechanism, when using the paper feeder, the elastic rotating rod can be rotated to a certain angle to cause the torsion spring to deform. Then, one end of the slide rail can be inserted into the slot. At this time, the elastic rotating rod is released so that it rotates towards the round block under the reset action of the torsion spring. Then, one end of the elastic rotating rod is forcefully fitted onto the outer surface of the round block to fix the slide rail on the paper feeder and fix its limiting cover on the paper feeder for limiting and positioning. Similarly, it can also be quickly disassembled for easy replacement and maintenance.
[0017] Preferably, an anti-slip block is fixedly installed on the inner wall of one end of the elastic rotating rod, and the anti-slip block is made of rubber.
[0018] The effect achieved by the above components is that by setting anti-slip blocks, the contact friction of the inner wall of one end of the elastic rotating rod can be increased, making it more secure and stable when it is fixed on the round block.
[0019] Preferably, one end of the slide rail has a trapezoidal longitudinal section, and the trapezoidal end of the slide rail is located at the end away from the limiting cover.
[0020] The effect achieved by the above components is that by setting one end of the slide rail in a trapezoidal shape, the area of one end can be reduced, making it easy to quickly align with the slot and insert it for convenient installation.
[0021] The beneficial effects of this utility model are:
[0022] By setting a limiting device, when the paper feeder is installed on the paper machine, the slide rail and the limiting cover can be fixedly installed on the paper feeder using a portable mechanism. Then, according to the actual use, the limiting cover can be slid to a certain position on the slide rail using an adjustment mechanism and fixed in place. This allows the limiting cover to limit and block the top of the nozzle frame, thereby preventing deviation during the paper feeding process, ensuring accurate paper feeding positioning, facilitating subsequent processing, and improving production efficiency and product quality. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] Figure 2 This is a three-dimensional structural diagram of the paper feeder of this utility model;
[0026] Figure 3 This is a three-dimensional structural diagram of the nozzle bracket of this utility model;
[0027] Figure 4 This is a three-dimensional structural diagram of the limiting cover of this utility model;
[0028] Figure 5 for Figure 4 A three-dimensional schematic diagram of a partial structure at the middle slide rail;
[0029] Figure 6 for Figure 4 A three-dimensional schematic diagram of the partial structure at the flexible rotating rod.
[0030] Legend: 1. Paper feeder; 2. Limiting device; 3. Nozzle frame; 4. Self-locking motor; 5. Round shaft; 6. Conveyor belt; 7. Sprocket; 8. Servo motor; 9. Chain; 21. Limiting cover; 22. Slide rail; 23. Adjustment mechanism; 231. Slide groove; 232. First threaded hole; 233. Second threaded hole; 234. Bolt; 235. Connecting rope; 24. Handling mechanism; 241. Slot; 242. Round block; 243. Elastic rotating rod; 244. Torsion spring; 245. Anti-slip block; 25. Guide plate. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Figure 1-6 The paper-feeding device shown includes a paper feeder 1 and two sprockets 7. A nozzle frame 3 is installed through one side of the paper feeder 1, and a self-locking motor 4 (model NEMA) is fixedly installed on one side of the paper feeder 1. 17) The output end of the self-locking motor 4 is fixedly installed on one side of the nozzle frame 3 by means of a coupling. The inner wall of the paper feeder 1 is symmetrically installed with round shafts 5. The outer surface of the round shafts 5 is fitted with a conveyor belt 6. A servo motor 8 is fixedly installed on one side of the paper feeder 1. The output end of the servo motor 8 passes through one side of the paper feeder 1 and is fixedly connected to one side of one of the sprockets 7 by means of a coupling. The other sprocket 7 is fixedly installed on one side of one of the round shafts 5. The outer surface of both sprockets 7 is fitted with chains 9. A limit device 2 is provided on one side of the paper feeder 1. The limit device 2 covers the top of the nozzle frame 3 by installing a limit cover 21 at one end of the nozzle frame 3. In this way, after the nozzle frame 3 blows the paper up to a certain height, it will be limited and blocked by the limit cover 21, and the paper will be guided to the conveyor belt 6 to achieve the effect of anti-deviation positioning. When the paper feeder 1 is installed on the paper machine during the paper production process, the limiting device 2 is first installed on the paper feeder 1, and its position is adjusted and fixed. The upper part of the nozzle frame 3 is limited so that it is not easy to deviate when feeding the paper, which facilitates the smooth progress of subsequent processing steps, improves production efficiency and product quality. During the paper feeding operation, the air pump's jet pipe is first installed at the inlet of the nozzle frame 3. When paper feeding is required, the self-locking motor 4 can be started to drive the nozzle frame 3 to rotate to a certain angle, which will blow the paper in production to a certain height and guide it to the conveyor belt 6. At this time, the servo motor 8 is started to drive one of the sprockets 7 to rotate, which, under the transmission of the chain 9, can drive the other sprocket 7 to rotate, thereby driving the round shaft 5 and the conveyor belt 6 to rotate, guiding the paper falling on the conveyor belt to the next processing stage.
[0034] Figure 1-6The limiting device 2 shown includes a limiting cover 21 and two slide rails 22, wherein an adjustment mechanism 23 is provided between one side of the limiting cover 21 and the two slide rails 22; and a portable mechanism 24, which is located between one side of the slide rail 22 and the paper feeder 1, for quickly installing and fixing the slide rail 22 onto the paper feeder 1, facilitating replacement and maintenance. By setting the limiting device 2, when the paper feeder 1 is installed on the paper machine, the slide rail 22 and the limiting cover 21 can be fixedly installed on the paper feeder 1 via the portable mechanism 24. Then, according to the actual usage, the limiting cover 21 can be slid on the slide rail 22 to a certain position via the adjustment mechanism 23 and fixed in place, so that the limiting cover 21 can limit and block the top of the nozzle frame 3, thereby preventing deviation during paper feeding, ensuring accurate paper feeding positioning, facilitating subsequent processing, and improving production efficiency and product quality.
[0035] Figure 1-6 The mechanism 23 shown includes bolts 234. Both ends of the limiting cover 21 have grooves 231. A slide rail 22 is slidably installed in the inner wall of the groove 231. A second threaded hole 233 is provided on one side of the inner wall of the groove 231, and several first threaded holes 232 are provided on one side of the slide rail 22. One end of the bolt 234 is screwed into the inner wall of the first and second threaded holes 232 and 233. By setting the adjustment mechanism 23, after the slide rail 22 is fixed to the paper feeder 1 via the portable mechanism 24, the limiting cover 21 can be manually slid along the slide rail 22 through the grooves 231 to a certain position according to the installation environment of the paper feeder 1. Then, the bolt 234 is screwed into the second threaded hole 233 and the corresponding first threaded hole 232, fixing the adjusted limiting cover 21 onto the slide rail 22. This makes the limiting cover 21 more flexible and practical during installation and use, helping to improve the stability of the paper feeding operation and the overall applicability of the equipment. A connecting rope 235 is fixedly installed on one side of the bolt 234, and one end of the connecting rope 235 is fixedly installed on one side of the limiting cover 21. By setting the connecting rope 235, the bolt 234 can be limited to one side of the limiting cover 21, so that it is not easy to lose it after being removed during adjustment. Guide plates 25 are fixedly installed on both sides of one end of the limiting cover 21, and the guide plates 25 are set on the side of the limiting cover 21 near the nozzle frame 3. By setting the guide plates 25, the protective area on both sides of the limiting cover 21 near the nozzle frame 3 can be extended, improving the protective effect.
[0036] Figure 1-6The casual clothing mechanism 24 shown includes a circular block 242, one side of which is fixedly mounted on one side of the paper feeder 1. The paper feeder 1 has slots 241 on both sides, one end of the slide rail 22 is inserted into the inner wall of the slot 241; an elastic rotating rod 243, one end of which is rotatably mounted on one side of the slide rail 22, and the inner wall of one end is sleeved on the outer surface of the circular block 242; and a torsion spring 244, the inner wall of which is sleeved on the outer surface of one end of the elastic rotating rod 243, and both ends are fixedly mounted on one side of the slide rail 22 and one side of the elastic rotating rod 243, respectively. By setting up the portable mechanism 24, when using the paper feeder 1, the elastic rotating rod 243 can be rotated to a certain angle to cause the torsion spring 244 to deform. Then, one end of the slide rail 22 is inserted into the slot 241. At this time, the elastic rotating rod 243 is released so that it rotates towards the round block 242 under the reset action of the torsion spring 244. Then, one end of the elastic rotating rod 243 is forcefully sleeved on the outer surface of the round block 242, so that the slide rail 22 can be fixedly installed on the paper feeder 1, and its limiting cover 21 is fixed on the paper feeder 1 to limit and position the paper feeder. Similarly, it can also be quickly disassembled for easy replacement and maintenance.
[0037] Figure 1-6 An anti-slip block 245, made of rubber, is fixedly installed on the inner wall of one end of the elastic rotating rod 243. By setting the anti-slip block 245, the contact friction of the inner wall of one end of the elastic rotating rod 243 can be increased, making it more secure and stable when fixed onto the circular block 242. One end of the slide rail 22 has a trapezoidal longitudinal section, and this trapezoidal end is located away from the limiting cover 21. By setting one end of the slide rail 22 in a trapezoidal shape, the area of one end can be reduced, allowing it to be quickly aligned with the slot 241 and inserted for convenient installation.
[0038] Working principle: When the paper feeder 1 is installed on the paper machine during the papermaking process, first rotate the elastic rotating rod 243 to a certain angle, causing the torsion spring 244 to deform. Then, insert one end of the slide rail 22 into the slot 241. At this time, release the elastic rotating rod 243 so that it rotates towards the round block 242 under the reset action of the torsion spring 244. Then, forcefully fit one end of the elastic rotating rod 243 onto the outer surface of the round block 242 to fix the slide rail 22 on the paper feeder 1, thus fixing the limiting cover 21 on the paper feeder 1. Then, according to the installation environment of the paper feeder 1, manually slide the limiting cover 21 on the slide rail 22 through the slide groove 231 to a certain position. Then, screw the bolt 234 into the second threaded hole 233 and the corresponding first threaded hole 232 to adjust the limiting cover 21. The positioning cover 21 is fixed at the corresponding position on the slide rail 22. During the paper feeding operation, the air pump's jet pipe is first installed at the inlet of the nozzle frame 3. When paper feeding is required, the self-locking motor 4 can be started to drive the nozzle frame 3 to rotate to a certain angle, which will blow the paper in production to a certain height. At this time, the positioning cover 21 can limit and block the upper part of the nozzle frame 3 to prevent deviation during the paper feeding process, ensure accurate paper feeding positioning, facilitate subsequent processing, and improve production efficiency and product quality. The positioning cover 21 will guide the paper to the conveyor belt 6. At this time, the servo motor 8 is started to drive one of the sprockets 7 to rotate, which, under the transmission of the chain 9, can drive the other sprocket 7 to rotate, thereby driving the round shaft 5 and the conveyor belt 6 to rotate, guiding the paper falling on the conveyor belt to the next processing stage.
[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A cordless paper feeding device for a papermaking machine, comprising a paper feeding frame (1) and two sprockets (7), characterized in that: A nozzle frame (3) is installed through one side of the paper feeder (1). A self-locking motor (4) is fixedly installed on one side of the paper feeder (1). The output end of the self-locking motor (4) is fixedly installed on one side of the nozzle frame (3) by means of a coupling. A round shaft (5) is symmetrically installed through the inner wall of the paper feeder (1). A conveyor belt (6) is fitted on the outer surface of the round shaft (5). A servo motor (8) is fixedly installed on one side of the paper feeder (1). The output end of the servo motor (8) is fixedly connected to one side of one of the sprockets (7) through a coupling on one side of the paper feeder (1). The other sprocket (7) is fixedly installed on one side of one of the round shafts (5). A chain (9) is fitted on the outer surface of both sprockets (7). A limit device (2) is provided on one side of the paper feeder (1). The limit device (2) is installed at one end of the nozzle frame (3) by a limit cover (21).
2. The cordless paper feeding device for a papermaking machine according to claim 1, characterized in that: The limiting device (2) includes a limiting cover (21) and two slide rails (22), wherein an adjustment mechanism (23) is provided between one side of the limiting cover (21) and the two slide rails (22). The portable mechanism (24) is located between the slide rail (22) and the paper feeder (1) on one side, and is used to quickly install and fix the slide rail (22) on the paper feeder (1) for easy replacement and maintenance.
3. The cordless paper feeding device for a papermaking machine according to claim 2, characterized in that: The adjustment mechanism (23) includes a bolt (234). Both ends of the limiting cover (21) are provided with sliding grooves (231). The slide rail (22) is slidably installed in the inner wall of the sliding groove (231). A second threaded hole (233) is provided on one side of the inner wall of the sliding groove (231). A plurality of first threaded holes (232) are provided on one side of the slide rail (22). One end of the bolt (234) is spirally inserted into the inner wall of the first threaded hole (232) and the second threaded hole (233).
4. The cordless paper feeding device for a papermaking machine according to claim 3, characterized in that: A connecting rope (235) is fixedly installed on one side of the bolt (234), and one end of the connecting rope (235) is fixedly installed on one side of the limiting cover (21).
5. A cordless paper feeding device for a papermaking machine according to claim 2, characterized in that: Both sides of one end of the limiting cover (21) are fixedly installed with guide plates (25), and the guide plates (25) are set on the side of the limiting cover (21) near the nozzle frame (3).
6. The cordless paper feeding device for a papermaking machine according to claim 2, characterized in that: The casual clothing mechanism (24) includes a round block (242), one side of which is fixedly installed on one side of the paper feeder (1). The paper feeder (1) has slots (241) on both sides, and one end of the slide rail (22) is inserted into the inner wall of the slot (241). The elastic rotating rod (243) has one end rotatably mounted on one side of the slide rail (22), and the inner wall of the other end is sleeved on the outer surface of the round block (242); A torsion spring (244) is fitted on the outer surface of one end of an elastic rotating rod (243), and both ends are fixedly installed on one side of the slide rail (22) and one side of the elastic rotating rod (243), respectively.
7. A cordless paper feeding device for a papermaking machine according to claim 6, characterized in that: An anti-slip block (245) is fixedly installed on the inner wall of one end of the elastic rotating rod (243), and the anti-slip block (245) is made of rubber.
8. A cordless paper feeding device for a papermaking machine according to claim 2, characterized in that: The longitudinal section of one end of the slide rail (22) is trapezoidal, and the trapezoidal end of the slide rail (22) is located at the end away from the limiting cover (21).