A servo-driven, pressure-free, dual-airbox paper feeding mechanism

Abstract

This utility model discloses a servo-driven, pressure-free, dual-airbox paper feeding mechanism, including a paper feeding unit housing. Several transmission rollers are evenly distributed along the front-to-back direction inside the housing. Each transmission roller has a transmission wheel mounted on it. The transmission rollers are driven to rotate by a servo motor. A movable seat that can move back and forth is horizontally placed between the side plates. A liftable mounting frame is mounted on the top of the movable seat. The transmission wheel is composed of two semi-circular wheel blocks, which are detachably mounted on the transmission rollers. This utility model uses two wheel blocks assembled into a transmission wheel, with the wheel blocks detachably connected to the transmission rollers. Thus, when the transmission wheel shows signs of wear or aging, the damaged transmission wheel can be directly disassembled without disassembling the machine frame. The entire process is convenient, quick, and labor-saving, greatly facilitating the disassembly and assembly of the transmission wheel.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a servo-driven pressure-free leading edge double-windbox paper feeding mechanism. Background Technology

[0002] A printing press is a cardboard box processing equipment. Its front end has a paper feeding section, through which stacks of cardboard boxes are sequentially transported to subsequent equipment for processing. Currently, the paper feeding section typically houses a drive shaft with several drive wheels evenly distributed on it. In actual production, as working time increases, these drive wheels inevitably experience wear and aging, requiring disassembly and replacement. Because the drive wheels are located inside the machine housing, each disassembly requires opening the housing, removing the entire drive roller, and finally removing the drive wheels. This operation is extremely inconvenient and greatly hinders the replacement of the drive wheels. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a servo-driven pressure-free leading edge dual-windbox paper feeding mechanism, thereby effectively solving the shortcomings of the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a servo-driven pressure-free leading edge dual-box paper feeding mechanism, including a paper feeding section housing. Several transmission rollers are evenly distributed along the front-rear direction inside the paper feeding section housing. Transmission wheels are provided on the transmission rollers. The transmission rollers are driven to rotate by a servo motor. The top of the paper feeding section housing has mounting notches at the positions corresponding to each of the transmission wheels. The upper ends of the transmission wheels extend out from the mounting notches. The paper feeding section housing has connecting plates on both sides of its front end. The connecting plates have detachable side plates. A movable seat that can move back and forth is horizontally placed between the side plates. A liftable placement frame is provided on the top of the movable seat. The placement frame has a placement edge on the side facing the paper feeding section housing. The carton is placed between the placement edge and the table surface of the paper feeding section housing.

[0005] The drive wheel is assembled from two semi-circular wheel blocks, which are detachably mounted on the drive roller.

[0006] Furthermore, the transmission roller is provided with a rectangular mounting block at the position corresponding to each of the transmission wheels. The wheel block is provided with a groove in the middle of one end of its plane. The grooves of the two wheel blocks cooperate with each other to clamp at the mounting block. The wheel blocks are clamped on the mounting block by quick-release pins.

[0007] Furthermore, the quick-release pin includes a pin rod and a rod head disposed on the top of the pin rod. The pin rod has symmetrical positioning protrusions on both sides of its lower end, and a retaining spring is sleeved on the upper end of the pin rod. The wheel block has a vertical first slot at the top of its arc-shaped surface. The pin rod is inserted into the first slot. The top of the wheel block has a countersunk hole at the position corresponding to the first slot. The diameter of the countersunk hole is larger than the diameter of the first slot. The rod head and the retaining spring are located in the countersunk hole. The first slot also has a first sliding groove adapted to the positioning protrusion. The mounting block has a second slot at the position corresponding to the first slot. The lower part of the pin rod is inserted into the second slot. The second slot also has a second sliding groove adapted to the positioning protrusion. The bottom of the second slot has an arc-shaped groove horizontally placed at the position corresponding to the second sliding grooves on both sides. The arc-shaped grooves on both sides face opposite directions and are adapted to the size of the positioning protrusion.

[0008] Furthermore, a transverse groove is provided at the top of the rod head.

[0009] Furthermore, baffles are provided on the transmission roller at positions corresponding to both sides of the mounting block.

[0010] Furthermore, the front end of the connecting plate is provided with a first wing plate, and the rear end of the side plate is provided with a second wing plate. The two wing plates overlap each other and are fixed together by screws.

[0011] Furthermore, the side plates are provided with a transmission rack on opposite sides, with the toothed end of the transmission rack facing downwards and a linear guide rail provided at the upper end of the transmission rack. The two ends of the movable seat are slidably mounted on the linear guide rail, and a shaft is horizontally placed at the bottom of the movable seat. The shaft is driven to rotate by a motor, and gears are provided at both ends of the shaft. The gears mesh with the teeth of the transmission rack.

[0012] Furthermore, a screw jack is provided on the top of the movable seat, and the placement frame is installed on the top of the screw jack to lift the screw. The worm gear of the screw jack is controlled to rotate by a drive motor.

[0013] The above-mentioned technical solution of this utility model has the following beneficial effects: This utility model assembles a transmission wheel by assembling two wheel blocks, and the wheel blocks are detachably connected to the transmission roller. In this way, when the transmission wheel is worn or aged, the damaged transmission wheel can be directly disassembled without disassembling the frame. The whole process is convenient and quick, saving time and effort, and bringing great convenience to the disassembly and assembly of the transmission wheel. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0015] Figure 2This is a three-dimensional structural diagram of the transmission wheel in an embodiment of the present invention;

[0016] Figure 3 This is an exploded structural diagram of the transmission wheel in an embodiment of the present invention;

[0017] Figure 4 This is a three-dimensional structural diagram of the quick-installation pin in an embodiment of the present utility model;

[0018] Figure 5 This is a cross-sectional structural diagram of the wheel block in an embodiment of the present invention;

[0019] Figure 6 This is a cross-sectional structural diagram of the mounting block in an embodiment of the present invention. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figure 1-6 As shown in the figure, the servo pressure-free front edge dual-box paper feeding mechanism described in this embodiment includes a paper feeding unit housing 1. Several transmission rollers 8 are evenly distributed in the front-back direction inside the paper feeding unit housing 1. Transmission wheels 2 are provided on the transmission rollers 8. The transmission rollers 8 are driven to rotate by a servo motor. The top of the paper feeding unit housing 1 is provided with mounting notches at the positions corresponding to each transmission wheel 2. The upper end of the transmission wheel 2 extends out at the mounting notch. The paper feeding unit housing 1 is provided with connecting plates 3 on both sides of its front end. The connecting plates 3 are provided with detachable side plates 4. A movable seat 5 that can move back and forth is placed horizontally between the side plates 4. A liftable placement rack 6 is provided on the top of the movable seat 5. The placement rack 6 is provided with a placement edge 7 on the side facing the paper feeding unit housing 1. The carton is placed between the placement edge 7 and the table surface of the paper feeding unit housing 1.

[0023] The transmission wheel 2 is assembled from two semi-circular wheel blocks 9, which are detachably mounted on the transmission roller 8.

[0024] The transmission roller 8 is provided with a rectangular mounting block 10 at the position corresponding to each transmission wheel 2. The wheel block 9 is provided with a groove 9a at the middle of one end of its plane. The grooves 9a of the two wheel blocks 9 cooperate with each other to clamp at the mounting block 10. The wheel blocks 9 are clamped on the mounting block 10 by quick-release pins.

[0025] The quick-release pin includes a pin 11 and a rod head 12 located at the top of the pin 11. The pin 11 has symmetrically arranged positioning protrusions 14 on both sides of its lower end. A retaining spring 13 is fitted onto the upper end of the pin 11. The wheel block 9 has a vertical first slot 15 at the top of its arc-shaped surface. The pin 11 is inserted into the first slot 15. A countersunk hole 16 is provided at the top of the wheel block 9 corresponding to the position of the first slot 15. The diameter of the countersunk hole 16 is larger than the diameter of the first slot 15. The rod head 12 and the retaining spring 13 are located within the countersunk hole 16. Inside, the first slot 15 is also provided with a first sliding groove 17 that matches the positioning protrusion 14. The mounting block 10 is provided with a second slot 18 at the position corresponding to the first slot 15. The lower part of the pin 11 is inserted into the second slot 18. The second slot 18 is also provided with a second sliding groove 19 that matches the positioning protrusion 14. The bottom of the second slot 18 is provided with an arc-shaped slot 20 at the position corresponding to the second sliding grooves 19 on both sides. The arc-shaped slots 20 on both sides face opposite directions and are adapted to the size of the positioning protrusion 14.

[0026] The top of the rod head 12 is provided with a horizontal groove 21. The arrangement of the horizontal groove 21 makes it convenient to use tools such as screwdrivers to tighten the quick-release pin.

[0027] A sealing cap 23 is also provided on the wheel block 9 at the position corresponding to the countersunk hole 16, and the sealing cap 23 is located inside the countersunk hole 16.

[0028] The drive roller 8 is provided with baffles 22 on both sides of the mounting block 10, which restrict the two wheel blocks 9 at the mounting block 10.

[0029] The front end of the connecting plate 3 is provided with a first wing plate 24, and the rear end of the side plate 4 is provided with a second wing plate 25. The two wing plates overlap each other and are fixed together by screws 26.

[0030] The side plate 4 has a transmission rack 27 on one of its opposite sides. The toothed end of the transmission rack 27 is arranged downwards. The upper end of the transmission rack 27 is provided with a linear guide rail 28. The two ends of the movable seat 5 are slidably mounted on the linear guide rail 28. The bottom of the movable seat 5 is horizontally provided with a shaft. The shaft is driven to rotate by a motor 29. The two ends of the shaft are provided with gears, which mesh with the teeth of the transmission rack 27.

[0031] A screw jack 30 is installed on the top of the movable seat 5. The placement frame 6 is installed on the top of the screw jack 30 to lift the screw. The worm gear of the screw jack 30 is controlled to rotate by the drive motor 31.

[0032] The utility model patent with patent number CN201820406357.3, entitled "A suction and paper feeding mechanism for a carton gluing machine", discloses a paper feeding mechanism, which discloses the specific structure of the movable seat 5 and the placement rack 6, which will not be described in detail here.

[0033] In this invention, when installing the transmission wheel 2, the groove 9a of a wheel block 9 is aligned with the mounting block 10 for insertion. The first slot 15 on the wheel block 9 corresponds to the second slot 18 on the mounting block 10. Then, the pin 11 is inserted along the two slots. The positioning protrusion 14 at the end of the pin 11 enters the second slide groove 19 along the first slide groove 17, and the lower end of the pin 11 enters the second slot 18. At this time, the rod head 12 enters the countersunk hole 16 and the rod head 12 compresses the retaining spring 13. Then, the pin 11 is rotated using a tool, so that the positioning protrusion 14 at the lower end of the pin 11 enters the horizontally placed arc-shaped groove 20 along the second slide groove 19. At this time, the positioning protrusion 14 restricts the movement of the pin 11. Within the arc-shaped groove 20, the spring force of the clamping spring 13 after compression causes the positioning protrusion 14 to be firmly locked within the arc-shaped groove 20. Finally, the sealing cap 23 is inserted into the countersunk hole 16, thus completing the installation of the wheel block 9. The two wheel blocks 9 are joined together to form the transmission wheel 2. When any wheel block 9 is damaged, simply rotate the corresponding wheel block 9 to the installation notch of the paper feeding section housing 1, then remove the sealing cap 23, and then rotate the pin 11 so that the two positioning protrusions 14 rotate along the arc-shaped groove 20 into the second sliding groove 19. The positioning protrusions 14 can then slide out along the two sliding grooves, thereby removing the entire quick-release pin. At this time, the wheel block 9 can be removed and replaced. The whole process is convenient and quick.

[0034] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A servo-driven, pressure-free, dual-airbox paper feeding mechanism, comprising a paper feeding section housing, wherein a plurality of transmission rollers are evenly distributed along the front-rear direction inside the paper feeding section housing, and transmission wheels are mounted on the transmission rollers. The transmission rollers are driven to rotate by a servo motor. The top of the paper feeding section housing has mounting notches at positions corresponding to each of the transmission wheels, and the upper ends of the transmission wheels protrude from the mounting notches. The mechanism is characterized in that: The paper feeding unit housing has connecting plates on both sides of its front end, and detachable side plates on the connecting plates. A movable seat that can move back and forth is placed horizontally between the side plates. A liftable placement rack is provided on the top of the movable seat. The placement rack has a placement edge on the side facing the paper feeding unit housing. The carton is placed between the placement edge and the table surface of the paper feeding unit housing. The drive wheel is assembled from two semi-circular wheel blocks, which are detachably mounted on the drive roller.

2. The servo-driven pressure-free leading-edge dual-windbox paper feeding mechanism according to claim 1, characterized in that: The transmission roller is provided with a rectangular mounting block at the position corresponding to each of the transmission wheels. The wheel block is provided with a groove in the middle of one end of its plane. The grooves of the two wheel blocks cooperate with each other to clamp the mounting block. The wheel blocks are clamped on the mounting block by quick-release pins.

3. The servo-driven pressure-free leading-edge dual-airbox paper feeding mechanism according to claim 2, characterized in that: The quick-release pin includes a pin rod and a rod head disposed on the top of the pin rod. The pin rod has symmetrical positioning protrusions on both sides of its lower end. A retaining spring is sleeved on the upper end of the pin rod. The wheel block has a vertical first slot at the top of its arc-shaped surface. The pin rod is inserted into the first slot. The top of the wheel block has a countersunk hole at the position corresponding to the first slot. The diameter of the countersunk hole is larger than the diameter of the first slot. The rod head and retaining spring are located in the countersunk hole. The first slot also has a first sliding groove adapted to the positioning protrusion. The mounting block has a second slot at the position corresponding to the first slot. The lower part of the pin rod is inserted into the second slot. The second slot also has a second sliding groove adapted to the positioning protrusion. The bottom of the second slot has an arc-shaped groove horizontally placed at the position corresponding to the second sliding groove on both sides. The arc-shaped grooves on both sides face opposite directions and are adapted to the size of the positioning protrusion.

4. The servo-driven pressure-free leading-edge dual-airbox paper feeding mechanism according to claim 3, characterized in that: The top of the rod head is provided with a horizontal groove.

5. A servo-driven pressure-free leading-edge dual-airbox paper feeding mechanism according to claim 4, characterized in that: The drive roller is provided with baffles at positions corresponding to both sides of the mounting block.

6. The servo-driven pressure-free leading-edge dual-airbox paper feeding mechanism according to claim 1, characterized in that: The front end of the connecting plate is provided with a first wing plate, and the rear end of the side plate is provided with a second wing plate. The two wing plates overlap each other and are fixed together by screws.

7. A servo-driven, pressure-free, dual-windbox paper feeding mechanism according to claim 6, characterized in that: The side plates are provided with a transmission rack on opposite sides, with the toothed end of the transmission rack facing downwards. A linear guide rail is provided at the upper end of the transmission rack. The two ends of the movable seat are slidably mounted on the linear guide rail. A shaft is horizontally placed at the bottom of the movable seat. The shaft is driven to rotate by a motor. Gears are provided at both ends of the shaft, and the gears mesh with the teeth of the transmission rack.

8. A servo-driven pressure-free leading-edge dual-airbox paper feeding mechanism according to claim 7, characterized in that: A screw jack is installed on the top of the movable seat, and the placement frame is installed on the top of the screw jack to lift the screw. The worm gear of the screw jack is controlled to rotate by a drive motor.

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