A carton conveyor roller device and packaging machine

Abstract

This utility model discloses a carton conveying pressure roller device and packaging machine, including a frame, a pressure roller mechanism, and an elastic pressure mechanism. The pressure roller mechanism includes a pressure roller shaft mounted on the frame and multiple pressure roller assemblies mounted on the pressure roller shaft. The elastic pressure mechanism includes a rocker arm located at the end of the pressure roller shaft, a spring cover plate mounted on the frame, and a spring located between the rocker arm and the spring cover plate. The contact end between the spring cover plate and the spring is detachable. This utility model has a simple and compact structure. The spring can be replaced simply by disassembling the contact end between the spring cover plate and the spring, making operation convenient, time-saving, and labor-saving, and effectively reducing maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machine technology, specifically relating to a carton conveying pressure roller device and a packaging machine. Background Technology

[0002] Currently, the main function of a carton packaging machine is to package cigarette packs from upstream into carton paper and then transport them to the next process. The carton conveying section is a crucial part of the packaging machine; among which, the carton paper pressure roller conveying device is one of the core components. Its working process is as follows: the stable conveying of the carton paper relies primarily on the cooperation between the pressure roller and the conveying roller below. The pressure roller applies necessary elastic pressure to the carton paper below through its spring mechanism, ensuring reliable friction between the carton paper and the conveying roller. Subsequently, through the continuous rotation of the conveying roller, the pressed carton paper is driven forward and precisely conveyed and unfolded.

[0003] However, in actual production, sometimes the carton conveyor becomes skewed. Reduced pressure in the spring mechanism is the main cause of this skew. The most direct solution for maintenance personnel is to replace the compression spring in the spring mechanism. However, replacing the compression spring requires disassembling many parts, and the pressure of the three sets of conveyor rollers needs to be adjusted later, which is time-consuming and labor-intensive, making maintenance work very difficult. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a carton conveying pressure roller device and packaging machine. The structure is simple and compact. The pressure spring can be replaced by simply disassembling the pressure spring cover plate and the contact end of the pressure spring. The operation is convenient, time-saving and labor-saving, and can effectively reduce maintenance costs.

[0005] This utility model provides the following technical solution: In a first aspect, a carton conveying pressure roller device is provided, including a frame, a pressure roller mechanism and an elastic pressure application mechanism; The pressure roller mechanism includes a pressure roller shaft disposed on the frame and a plurality of pressure roller assemblies mounted on the pressure roller shaft; The elastic pressure mechanism includes a rocker arm located at the end of the pressure roller shaft, a pressure spring cover plate mounted on the frame, and a pressure spring located between the rocker arm and the pressure spring cover plate. The contact end between the pressure spring cover plate and the pressure spring is a detachable structure.

[0006] Furthermore, the pressure roller assembly includes a pressure roller frame and a pressure roller, one end of which is fixedly connected to the pressure roller shaft, and the other end is rotatably connected to the pressure roller.

[0007] Furthermore, the ends of the pressure roller frame are provided with a pair of first ear plates, and the two ends of the pressure roller are rotatably connected to the first ear plates through a first rotating shaft.

[0008] Furthermore, the compression spring cover includes a mounting block, a fixing block, and a movable block. The mounting block is connected to the frame, the fixing block is connected to the mounting block, and the movable block is connected to the fixing block by screws.

[0009] Furthermore, the fixed block is provided with a first screw hole, and the movable block is provided with a second screw hole corresponding to the position of the first screw hole. The screw is installed in the second screw hole and the first screw hole, and the axis of the screw is perpendicular to the axis of the compression spring.

[0010] Furthermore, the mounting block is provided with bolt holes, and the mounting block is fixedly connected to the frame by fastening bolts fitted into the bolt holes.

[0011] Furthermore, the fixed block and the movable block are provided with a first compression spring groove on the side facing the compression spring, and the rocker arm is provided with a second compression spring groove corresponding to the position of the first compression spring groove.

[0012] Furthermore, the elastic pressure mechanism also includes a cam, and the end of the rocker arm is provided with a rocker arm roller, which rotates in cooperation with the cam.

[0013] Furthermore, the end of the rocker arm roller is provided with two symmetrically arranged second ear plates, the rocker arm roller is located between the two second ear plates, and is rotatably connected to the second ear plates through a second rotating shaft.

[0014] In a second aspect, a packaging machine is provided, comprising the carton conveying pressure roller device as described in any one of the first aspects.

[0015] Compared with the prior art, the beneficial effects of this utility model are: (1) The elastic pressure mechanism of this utility model includes a rocker arm at the end of the pressure roller shaft, a pressure spring cover plate installed on the frame, and a pressure spring between the rocker arm and the pressure spring cover plate. The pressure spring cover plate limits the top of the pressure spring, so that the pressure spring acts on the rocker arm, thereby controlling the pressure roller shaft and making the pressure roller assembly apply pressure to the strip box paper, ensuring that a reliable friction force is formed between the strip box paper and the conveying roller. The structure is simple, compact, and easy to operate. (2) In this utility model, the contact end between the pressure spring cover plate and the pressure spring is a detachable structure. When the paper conveying of the strip box is skewed and the pressure spring needs to be replaced, the pressure spring can be replaced simply by disassembling the contact end between the pressure spring cover plate and the pressure spring. The operation is convenient, time-saving and labor-saving, and can effectively reduce maintenance costs. No modification to the original equipment is required, making it suitable for promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the strip box conveying pressure roller device in this utility model embodiment; Figure 2This is a front structural diagram of the compression spring cover plate in an embodiment of this utility model; Figure 3 This is a schematic diagram of the back structure of the compression spring cover plate in an embodiment of this utility model; Figure 4 This is an exploded view of the front structure of the compression spring cover plate in an embodiment of this utility model; Figure 5 This is an exploded view of the back of the compression spring cover plate in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure when disassembling the compression spring in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the compression spring during the press-fitting process in an embodiment of this utility model; The markings in the diagram are as follows: 1. Frame; 2. Pressure roller shaft; 3. Pressure roller frame; 4. Rocker arm; 5. Compression spring; 6. Compression spring cover plate; 7. Cam; 8. Pressure roller; 9. First rotating shaft; 10. Rocker arm roller; 11. Second rotating shaft; 12. Second compression spring groove; 13. Fastening bolt; 14. Flat tool; 61. Bolt hole; 62. Mounting block; 63. Fixing block; 64. Moving block; 65. Screw; 66. First compression spring groove; 67. First screw hole; 68. Second screw hole. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0018] It should be noted that in the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "inner", "outer", 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 utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] Example 1

[0021] like Figure 1 As shown, this embodiment provides a carton conveying pressure roller device, including a frame 1, a pressure roller mechanism and an elastic pressure mechanism.

[0022] like Figure 1 As shown, the pressure roller mechanism includes a pressure roller shaft 2 mounted on the frame 1 and multiple pressure roller assemblies mounted on the pressure roller shaft 2. Each pressure roller assembly includes a pressure roller frame 3 and pressure rollers 8. One end of the pressure roller frame 3 is fixedly connected to the pressure roller shaft 2, and the other end is rotatably connected to the pressure rollers 8. Specifically, the ends of the pressure roller frame 3 are provided with paired first ear plates, and both ends of the pressure rollers 8 are rotatably connected to the first ear plates via first rotating shafts 9. When the pressure roller shaft 2 rotates, it can drive the pressure roller frame 3 and the pressure rollers 8 at its ends to press down or lift up. When the pressure rollers 8 press down, pressure is applied to the carton paper under the pressure rollers 8, generating reliable friction between the carton paper and the conveying rollers below, thus achieving smooth and precise conveying of the carton paper.

[0023] like Figure 1 As shown, the elastic pressure mechanism includes a rocker arm 4 located at the end of the pressure roller shaft 2, a spring cover plate 6 mounted on the frame 1, and a spring 5 located between the rocker arm 4 and the spring cover plate 6. The contact end between the spring cover plate 6 and the spring 5 is detachable. The spring cover plate 6 is fixed to the frame 1. The spring 5 applies elastic pressure to the rocker arm 4, which in turn causes the pressure roller 8 to exert elastic pressure on the paper below through the pressure roller shaft 2 and the pressure roller frame 3. When the paper is conveyed skewed and the spring 5 needs to be replaced, the spring 5 can be replaced by disassembling the contact end between the spring cover plate 6 and the spring 5, which is convenient and quick.

[0024] like Figures 2-5 As shown, the compression spring cover 6 includes a mounting block 62, a fixing block 63, and a movable block 64. The mounting block 62 is connected to the frame 1, the fixing block 63 is connected to the mounting block 62, and the movable block 64 is connected to the fixing block 63 by screws 65. Specifically, the mounting block 62 has bolt holes 61, and the mounting block 62 is fixedly connected to the frame 1 by fastening bolts 13 fitted into the bolt holes 61, thus realizing the installation of the entire compression spring cover 6. The fixing block 63 has a first screw hole 67, and the movable block 64 has a second screw hole 68 corresponding to the position of the first screw hole 67. The screws 65 are installed in the second screw hole 68 and the first screw hole 67. The movable block 64 can be disassembled and installed by removing and installing the screws 65, which facilitates the replacement of the compression spring 5. Furthermore, the axis of the screws 65 is perpendicular to the axis of the compression spring 5. This design facilitates the removal and installation of the screws 65 and does not interfere with the removal, installation, and operation of the compression spring 5. In this embodiment, the compression spring cover plate 6 is made of 45# steel and is heat-treated by quenching to improve its hardness. The number of fastening bolts 13 and screws 65 are both two, which makes the structural strength of the compression spring cover plate 6 higher.

[0025] like Figures 2-5As shown, the fixed block 63 and the movable block 64 have a first spring groove 66 on the side facing the compression spring 5, and the rocker arm 4 has a second spring groove 12 corresponding to the position of the first spring groove 66. In this embodiment, the fixed block 63 and the movable block 64 each have half of the first spring groove. When the fixed block 63 and the movable block 64 are spliced ​​together, the two halves of the first spring groove are spliced ​​together to form a complete first spring groove 66. The upper and lower ends of the compression spring 5 are respectively engaged in the first spring groove 66 and the second spring groove 12, which can prevent the compression spring 5 from disengaging during operation.

[0026] like Figure 1 As shown, the elastic pressure mechanism also includes a cam 7. The end of the rocker arm 4 is provided with a rocker arm roller 10. Specifically, the end of the rocker arm roller 10 is provided with two symmetrically arranged second ear plates. The rocker arm roller 10 is located between the two second ear plates and is rotatably connected to the second ear plates through a second rotating shaft 11. The rocker arm roller 10 and the cam 7 cooperate to roll. By rotating the cam 7, the height of one end of the rocker arm roller 10 of the rocker arm 4 can be adjusted, thereby adjusting the rotation position of the pressure roller shaft 2 connected to the other end of the rocker arm 4 and the elastic pressure of the pressure spring 5, thereby realizing the elastic pressure of the pressure roller 8 on the lower strip of paper.

[0027] The working principle of the carton conveying pressure roller device in this embodiment is as follows: like Figure 1 As shown, the rotation angle of the rocker arm 4 connected to the pressure roller shaft 2 and the elastic pressure of the pressure spring 5 on the rocker arm 4 are adjusted according to the thickness of the carton paper by rotating the cam 7. In turn, the pressure roller shaft 2 and the pressure roller frame 3 realize the elastic pressure of the pressure roller 8 on the carton paper, ensuring that a reliable friction force is formed between the carton paper and the conveying roller below it. The structure is simple, compact and easy to operate.

[0028] When the paper carton feeder is misaligned and the pressure spring 5 needs to be replaced, such as... Figure 6 As shown, first remove screw 65 to disassemble the movable block 64. At this time, the compression spring 5 can be disengaged from between the rocker arm 4 and the compression spring cover plate 6. During installation, as shown... Figure 7 As shown, first, the compression spring 5 is installed into the second compression spring groove 12. Then, a flat tool 14, such as a steel ruler, is used to press down on the first compression spring groove 66 of the fixing block 63, compressing the compression spring 5. Guided by the flat tool 14, the compression spring 5 is pushed inward into the first compression spring groove 66 of the fixing block 63. Then, the flat tool 14 is pulled out. At this point, the compression spring 5 remains compressed under the constraint of half of the first compression spring groove 66 of the fixing block 63. Finally, the movable block 64 is promptly installed into place using screws 65 to prevent the compression spring 5 from coming out. The replacement of the compression spring 5 is convenient, time-saving, and labor-saving, effectively reducing maintenance costs. It does not require modification of the original equipment and is suitable for widespread application.

[0029] Example 2

[0030] This embodiment provides a packaging machine equipped with the carton conveying pressure roller device described in Embodiment 1.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A carton conveying pressure roller device, characterized in that, Includes the frame, pressure roller mechanism, and elastic pressure application mechanism; The pressure roller mechanism includes a pressure roller shaft disposed on the frame and a plurality of pressure roller assemblies mounted on the pressure roller shaft; The elastic pressure mechanism includes a rocker arm located at the end of the pressure roller shaft, a pressure spring cover plate mounted on the frame, and a pressure spring located between the rocker arm and the pressure spring cover plate. The contact end between the pressure spring cover plate and the pressure spring is a detachable structure.

2. The carton conveying pressure roller device according to claim 1, characterized in that, The pressure roller assembly includes a pressure roller frame and a pressure roller. One end of the pressure roller frame is fixedly connected to the pressure roller shaft, and the other end is rotatably connected to the pressure roller.

3. The carton conveying pressure roller device according to claim 2, characterized in that, The ends of the pressure roller frame are provided with a pair of first ear plates, and the two ends of the pressure roller are rotatably connected to the first ear plates through a first rotating shaft.

4. The carton conveying pressure roller device according to claim 1, characterized in that, The compression spring cover includes a mounting block, a fixing block, and a movable block. The mounting block is connected to the frame, the fixing block is connected to the mounting block, and the movable block is connected to the fixing block by screws.

5. The carton conveying pressure roller device according to claim 4, characterized in that, The fixed block is provided with a first screw hole, and the movable block is provided with a second screw hole corresponding to the position of the first screw hole. The screw is installed in the second screw hole and the first screw hole, and the axis of the screw is perpendicular to the axis of the compression spring.

6. The carton conveying pressure roller device according to claim 4, characterized in that, The mounting block is provided with bolt holes, and the mounting block is fixedly connected to the frame by fastening bolts assembled in the bolt holes.

7. The carton conveying pressure roller device according to claim 4, characterized in that, The fixed block and the movable block have a first compression spring groove on the side facing the compression spring, and the rocker arm has a second compression spring groove corresponding to the position of the first compression spring groove.

8. The carton conveying pressure roller device according to claim 1, characterized in that, The elastic pressure mechanism also includes a cam, and the end of the rocker arm is provided with a rocker arm roller, which rotates in cooperation with the cam.

9. The carton conveying pressure roller device according to claim 8, characterized in that, The rocker arm roller has two symmetrically arranged second ear plates at its end. The rocker arm roller is located between the two second ear plates and is rotatably connected to the second ear plates through a second rotating shaft.

10. A packaging machine, characterized in that, Includes the carton conveying pressure roller device as described in any one of claims 1 to 9.

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