Continuous gear adjusting mechanism for paper width adjustment

Abstract

The utility model belongs to the technical field of paper cutter machining, and particularly relates to a continuous gear adjusting mechanism for paper width adjustment. The paper cutting machine comprises a paper cutting machine body, transmission boxes are fixedly installed on the two sides of the paper cutting machine body, the bottoms of the transmission boxes are in transmission connection with cutters, motors are fixedly installed in the transmission boxes, the driving ends of the motors are fixedly connected with main driving wheels, the main driving wheels are in transmission connection with auxiliary driving wheels through gears, and the auxiliary driving wheels are in transmission connection with the paper cutting machine body. The auxiliary driving wheel is in transmission connection with the guide roller through a belt, the main driving wheel is in transmission connection with a gear mechanism through a belt, and an adjusting assembly is connected to the outer portion of the gear mechanism in an attached mode. The four gear discs with different tooth number ratios are fixedly connected together, and the adjusting assemblies are connected to the two sides of each gear disc in an attached mode, so that the positions of the gear discs are convenient to adjust, change of the tooth number ratios is achieved, adaptability and efficiency are greatly improved, and working efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper cutter processing, and relates to a gear adjusting mechanism for continuously adjusting the width of paper Background Art

[0002] A paper cutter is a traditional product used to process the paper cutting requirements in the later stage of printing. With the development of technology, the paper cutter has experienced the development from mechanical type to tape control type, and then to microcomputer program control, color display, full-image operation guidance visualization processing and computer-aided cutting and other stages. This has shortened the production preparation time, improved the cutting accuracy, reduced the labor intensity, and made the operation safer. Previously, when cutting a cylindrical roll of printing paper, electronic components were used to control the cutting time interval of the cutter, such as intervals of 1 second, 2 seconds, 3 seconds, etc. The cutter cuts once, and such fixed adjustment time results in only a few specifications for the cutting length of the paper. If it is necessary to adjust the cutting length of paper with multiple specifications, it is relatively difficult. Now, a gear mechanism is used to connect the cutter, and the gear mechanism drives the cutter to rise and fall. By adjusting the tooth number ratio of different gears, the cutting of different paper lengths can be achieved, and both the adaptability and efficiency have been greatly improved. However, the existing paper cutter needs to replace different single gear discs to achieve the change of the tooth number ratio, and the working efficiency is relatively low. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the above problems and provide a gear adjusting mechanism for continuously adjusting the width of paper.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A gear adjusting mechanism for continuously adjusting the width of paper includes a paper cutter main body. Transmission boxes are fixedly installed on both sides of the paper cutter main body. A cutter is driven and connected at the bottom of the transmission box. A motor is fixedly installed inside the transmission box, and a main driving wheel is fixedly connected to the driving end of the motor. The main driving wheel is connected to a secondary driving wheel through gears. The secondary driving wheel is connected to a guide roller through a belt. The main driving wheel is connected to a gear mechanism through a belt. An adjusting component is attached and connected to the outside of the gear mechanism. A tensioning device is arranged below the belt and inside the transmission box.

[0006] In the above gear adjusting mechanism for continuously adjusting the width of paper, the gear mechanism is composed of a first gear disc, a second gear disc, a third gear disc, a fourth gear disc and a transmission shaft. One side of the first gear disc is fixedly connected to the second gear disc.

[0007] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, a third gear disc is fixedly connected to the other side of the second gear disc, and a fourth gear disc is fixedly connected to the other side of the third gear disc. Among them, the first gear disc, the second gear disc, the third gear disc and the fourth gear disc are arranged and connected in a frustum shape structure.

[0008] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, tooth-shaped key grooves are provided at the central positions inside the first gear disc, the second gear disc, the third gear disc and the fourth gear disc. The transmission shaft is placed in the key groove in an embedded manner and is engaged and connected.

[0009] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, the adjusting assembly is composed of a pressing plate, a lead screw, an adjusting nut and four sliding rods. One ends of the four sliding rods are fixedly connected to the inner wall of the transmission box and are arranged in a square shape on the outside of the gear mechanism.

[0010] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, the four corners of the pressing plate are respectively sleeved on the sliding rods and are slidably connected. A first support spring is sleeved on the sliding rods, and the two sides of the pressing plate are both connected with lead screws through threaded transmission.

[0011] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, one end of the lead screw is movably connected to the inner wall of the transmission box, and the other end of the lead screw passes through the pressing plate and is screwed with an adjusting nut through a thread.

[0012] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, a support bearing is fixedly installed at the central position of the pressing plate. Among them, a tooth-shaped key groove is correspondingly arranged on the inner ring of the bearing. One end of the transmission shaft is placed on the inner ring of the bearing and is rotatably connected. A second support spring is sleeved on the other end of the transmission shaft.

[0013] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, the tensioning device is composed of an air pump, a guide wheel, a moving plate and a fixed strip. Among them, the fixed strip is correspondingly installed on the inner wall of the transmission box, and a chute is arranged below the fixed strip.

[0014] In the above-mentioned gear adjusting mechanism for continuously adjusting the width of paper, both sides of the moving plate are placed in an embedded manner below the fixed strip and are slidably connected. One end of the moving plate is movably connected with a guide wheel through a pin shaft, and the other end of the moving plate is fixedly connected to the telescopic pump rod end of the air pump. The air pump is fixedly installed on the bottom inner wall of the transmission box.

[0015] Compared with the existing technology, the advantages of the present utility model are as follows:

[0016] In this utility model, a cutting knife is drivingly connected to the bottom of a transmission box. Inside the transmission box, a main driving wheel is drivingly connected by a motor. The main driving wheel is drivingly connected to a secondary driving wheel through a gear, and at the same time, the secondary driving wheel is drivingly connected to a guide roller through a belt, so as to drive the guide roller to rotate and further drive the paper to move on the processing table. At the same time, the main driving wheel is drivingly connected to a gear mechanism through a belt. Four gear discs with different gear ratios, namely a first gear disc, a second gear disc, a third gear disc, and a fourth gear disc, are fixedly connected together, which facilitates the belt to be quickly sleeved on the gear disc and rotatably connected. Inside the four gear discs, tooth-shaped key grooves are provided, and a transmission shaft is embedded in the gear disc. At the same time, one end of the transmission shaft is drivingly connected to the cutting knife, so that the rotation of the gear disc can further drive the cutting knife to move up and down. At the four corners of the outer wall of the gear disc, slide bars are fixedly installed, and a pressing plate is slidably connected to the slide bars. On both sides of the pressing plate, lead screws are drivingly connected through threads, and adjusting nuts are screwed on the lead screws, so that the pressing plate can be tightly connected by using the adjusting nuts, and the position of the pressing plate can be adjusted to further push the gear disc to move. At the center of the pressing plate, a bearing is fixedly installed, and a tooth-shaped key groove is provided on the inner ring of the bearing, so that the other end of the transmission shaft can be placed without affecting rotation, which is convenient for adjusting the position of the gear disc, realizing the change of the gear ratio, and the operation is more convenient.

[0017] Other advantages, objectives, and features of this utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of this utility model. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of this utility model.

[0019] Figure 2 is the internal view of the transmission box of this utility model.

[0020] Figure 3 is the partial enlarged schematic diagram of the transmission box of this utility model.

[0021] Figure 4 is the connection schematic diagram of the gear mechanism and the adjustment component of this utility model.

[0022] Figure 5 is the connection schematic diagram of the lead screw and the pressing plate of this utility model.

[0023] Figure 6 is the front view of the pressing plate of this utility model.

[0024] In the figure: 1. Paper cutter main body; 2. Transmission box; 21. Cutter; 3. Main drive wheel; 31. Sub-drive wheel; 4. Belt; 5. Guide roller; 6. Gear mechanism; 61. First gear disc; 62. Second gear disc; 63. Third gear disc; 64. Fourth gear disc; 65. Transmission shaft; 605. Second support spring; 66. Keyway; 7. Adjusting assembly; 71. Pressure plate; 72. Screw rod; 73. Adjusting nut; 74. Slide bar; 704. First support spring; 75. Bearing; 8. Tensioning device; 81. Air pump; 82. Guide wheel; 83. Moving plate; 84. Fixed strip. Detailed implementation mode

[0025] The present utility model will be further described below with reference to the accompanying drawings.

[0026] As Figure 1-6 shown, a gear adjusting mechanism for continuously adjusting the width of paper includes a paper cutter main body 1. Transmission boxes 2 are fixedly installed on both sides of the paper cutter main body 1. A cutter 21 is drivingly connected to the bottom of the transmission box 2. A motor is fixedly installed inside the transmission box 2, and a main drive wheel 3 is fixedly connected to the driving end of the motor. The main drive wheel 3 is drivingly connected to a sub-drive wheel 31 through gears. The sub-drive wheel 31 is drivingly connected to a guide roller 5 through a belt 4. The main drive wheel 3 is drivingly connected to a gear mechanism 6 through a belt 4. An adjusting assembly 7 is adhesively connected to the outside of the gear mechanism 6. A tensioning device 8 is arranged below the belt 4 and inside the transmission box 2.

[0027] In this embodiment, by fixedly installing transmission boxes 2 on both sides of the paper cutter main body 1, it is convenient for the transmission boxes 2 to provide stable support and can control and connect the overall device. Among them, a cutter 21 is drivingly connected to the bottom of the transmission box 2, which is convenient for the cutter 21 to perform the slitting operation on the paper on the processing table. At the same time, a main drive wheel 3 is drivingly connected inside the transmission box 2 through a motor, and a sub-drive wheel 31 is drivingly connected to the main drive wheel 3 through gears. The sub-drive wheel 31 is drivingly connected to a guide roller 5 through a belt 4, which is convenient for driving the guide roller 5 on the processing table to rotate. At the same time, the main drive wheel 3 is drivingly connected to a gear mechanism 6 through a belt 4, so that the main drive wheel 3 can be used to drive the gear mechanism 6 to rotate, further realizing the slitting work of the cutter 21. At the same time, an adjusting assembly 7 is adhesively connected to the outside of the gear mechanism 6, which is convenient for the operator to adjust the gear ratio for use, and the operation is more convenient.

[0028] Combined with Figure 4 shown, the gear mechanism 6 is composed of a first gear disc 61, a second gear disc 62, a third gear disc 63, a fourth gear disc 64 and a transmission shaft 65. One side of the first gear disc 61 is fixedly connected to the second gear disc 62.

[0029] In this embodiment, by fixedly connecting a second gear disk 62 to one side of the first gear disk 61, the second gear disk 62 can be stably connected to the first gear disk 61.

[0030] Combined with Figure 4 As shown, a third gear disk 63 is fixedly connected to the other side of the second gear disk 62, and a fourth gear disk 64 is fixedly connected to the other side of the third gear disk 63. Among them, the first gear disk 61, the second gear disk 62, the third gear disk 63, and the fourth gear disk 64 are connected in a frustum-shaped structure.

[0031] In this embodiment, by stably connecting the first gear disk 61, the second gear disk 62, the third gear disk 63, and the fourth gear disk 64 and connecting them in a frustum-shaped structure, it is convenient to realize the adjustment and transformation of the tooth number ratio on the gear disks.

[0032] Combined with Figure 3 、 Figure 4 As shown, tooth-shaped key grooves 66 are provided at the central positions inside the first gear disk 61, the second gear disk 62, the third gear disk 63, and the fourth gear disk 64. The transmission shaft 65 is placed in the key groove 66 in an embedded manner and is engaged and connected.

[0033] In this embodiment, by providing tooth-shaped key grooves 66 at the central positions inside the four gear disks, and at the same time placing the transmission shaft 65 in the key groove 66 in an embedded manner and engaging and connecting them, the gear disks can be used to drive the transmission shaft 65 to rotate.

[0034] Combined with Figure 1 、 Figure 2 As shown, the adjusting assembly 7 is composed of a pressing plate 71, a lead screw 72, an adjusting nut 73, and four sliding rods 74. One ends of the four sliding rods 74 are fixedly connected to the inner wall of the transmission box 2 and are arranged in a square shape on the outside of the gear mechanism 6.

[0035] In this embodiment, by respectively and correspondingly installing one ends of the four sliding rods 74 on the inner wall of the transmission box 2, it is convenient to maintain the installation stability of the sliding rods 74. At the same time, installing them on the outside of the gear mechanism 6 does not affect the normal rotation of the gear mechanism 6.

[0036] Combined with Figure 4 、 Figure 5 As shown, the four corners of the pressing plate 71 are respectively sleeved on the sliding rods 74 and are slidably connected. A first support spring 704 is sleeved on the sliding rods 74, and lead screws 72 are threadedly connected to both sides of the pressing plate 71.

[0037] In this embodiment, by sleeving the four corners of the pressing plate 71 on the sliding rod 74, the pressing plate 71 can be moved on the sliding rod 74. At the same time, a first support spring 704 is sleeved on the sliding rod 74, which facilitates providing a stable support force for the pressing plate 71.

[0038] Combined with Figure 2 , Figure 3 and Figure 5 As shown, one end of the lead screw 72 is movably connected to the inner wall of the transmission box 2. The other end of the lead screw 72 passes through the pressing plate 71 and is threadedly connected with an adjusting nut 73.

[0039] In this embodiment, by movably installing one end of the lead screw 72 on the inner wall of the transmission box 2, the lead screw 72 can rotate on the inner wall of the transmission box 2. At the same time, the other end of the lead screw 72 passes through the pressing plate 71 and is threadedly connected with an adjusting nut 73, so that the position of the adjusting nut 73 can be adjusted by screwing.

[0040] Combined with Figure 2 , Figure 4 and Figure 6 As shown, a support bearing 75 is fixedly installed at the center position of the pressing plate 71. A toothed keyway 66 is correspondingly arranged on the inner ring of the bearing 75. One end of the transmission shaft 65 is placed on the inner ring of the bearing 75 and is rotatably connected, and a second support spring 605 is sleeved on the other end of the transmission shaft 65.

[0041] In this embodiment, by fixedly installing a bearing 75 at the center position of the pressing plate 71 and correspondingly arranging a toothed keyway 66 at the center position inside the bearing 75, and at the same time placing one end of the transmission shaft 65 inside the bearing 75, the normal rotation of the transmission shaft 65 is not affected. At the same time, a second support spring 605 is sleeved on the transmission shaft 65, so that the gear disk can be stably supported.

[0042] Combined with Figure 2 , Figure 3 As shown, the tensioning device 8 is composed of an air pump 81, a guide wheel 82, a moving plate 83 and a fixing strip 84. The fixing strip 84 is correspondingly installed on the inner wall of the transmission box 2, and a chute is arranged below the fixing strip 84.

[0043] In this embodiment, by fixedly installing the fixing strip 84 on the inner wall of the transmission box 2, it is convenient to stably support the fixing strip 84. At the same time, a chute with a gap structure is arranged below the fixing strip 84, which is convenient for sliding and placing the moving plate 83.

[0044] Combined with Figure 2 , Figure 3As shown, both sides of the moving plate 83 are embedded and placed below the fixed bar 84 and are slidably connected. One end of the moving plate 83 is movably connected with a guide wheel 82 through a pin shaft, and the other end of the moving plate 83 is fixedly connected to the telescopic pump rod end of the air pump 81. The air pump 81 is fixedly installed on the bottom inner wall of the transmission box 2.

[0045] In this embodiment, by movably connecting a guide wheel 82 to one end of the moving plate 83 and fixedly connecting the other end of the moving plate 83 to the air pump 81, the telescopic movement of the air pump 81 can be utilized to further drive the moving plate 83 to move up and down, so as to adjust the tightness of the belt 4.

[0046] The working principle of the present utility model is:

[0047] When the present utility model is in use, one end of the transmission shaft 65 is drivingly connected to the cutting knife 21. At the same time, the first gear disk 61, the second gear disk 62, the third gear disk 63 and the fourth gear disk 64 in the gear mechanism 6 are sleeved on the transmission shaft 65 and are in an embedded engagement connection. Four sliding rods 74 are fixedly installed on the outer wall of the gear disk, and a first support spring 704 is sleeved on the sliding rods 74. A pressing plate 71 is slidably sleeved on the sliding rods 74. Both sides of the pressing plate 71 are threadedly drivingly connected with lead screws 72, and an adjusting nut 73 is screwed on the lead screws 72. Thus, the rotation of the adjusting nut 73 can be utilized to further press the pressing plate 71 to move. A bearing 75 is fixedly installed at the central position inside the pressing plate 71, and a toothed keyway 66 is correspondingly arranged on the inner ring of the bearing 75. Then, the other end of the transmission shaft 65 can be placed in the bearing 75 without affecting the normal rotation of the transmission shaft 65. At this time, the main driving wheel 3 is drivingly connected to the gear disk through the belt 4, so as to further drive the transmission shaft 65 to rotate, facilitate driving the cutting knife 21 to work, and at the same time, the position of the gear disk is further adjusted by adjusting the pressing plate 71, so as to realize the change of the gear ratio and improve the working efficiency.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model.

[0049] Although this text uses terms such as 1. Paper cutter body; 2. Transmission box; 21. Cutter; 3. Main drive wheel; 31. Auxiliary drive wheel; 4. Belt; 5. Guide roller; 6. Gear mechanism; 61. First gear disk; 62. Second gear disk; 63. Third gear disk; 64. Fourth gear disk; 65. Transmission shaft; 605. Second support spring; 66. Keyway; 7. Adjustment assembly; 71. Pressure plate; 72. Lead screw; 73. Adjusting nut; 74. Slide bar; 704. First support spring; 75. Bearing; 8. Tensioning device; 81. Air pump; 82. Guide wheel; 83. Moving plate; 84. Fixed strip more frequently, it does not exclude the possibility of using other terms. The use of these terms is only for the convenience of describing and explaining the essence of the present utility model, and interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A gear adjusting mechanism for continuously adjusting the width of paper, comprising a paper cutter main body (1), wherein transmission boxes (2) are fixedly installed on both sides of the paper cutter main body (1), and a cutting knife (21) is in transmission connection with the bottom of the transmission box (2), characterized in that, A motor is fixedly installed inside the transmission case (2), and a main driving wheel (3) is fixedly connected to the driving end of the motor. The main driving wheel (3) is connected to a secondary driving wheel (31) through gear transmission. The secondary driving wheel (31) is connected to a guide roller (5) through a belt (4). The main driving wheel (3) is connected to a gear mechanism (6) through a belt (4). An adjusting assembly (7) is attached to the outside of the gear mechanism (6). A tensioning device (8) is arranged below the belt (4) and inside the transmission case (2).

2. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 1, characterized in that, The gear mechanism (6) is composed of a first gear disk (61), a second gear disk (62), a third gear disk (63), a fourth gear disk (64) and a transmission shaft (65). One side of the first gear disk (61) is fixedly connected to the second gear disk (62).

3. The gear adjustment mechanism for continuously adjusting the width of a paper sheet according to claim 2, characterized in that, The other side of the second gear disk (62) is fixedly connected to the third gear disk (63). The other side of the third gear disk (63) is fixedly connected to the fourth gear disk (64). The first gear disk (61), the second gear disk (62), the third gear disk (63) and the fourth gear disk (64) are arranged and connected in a frustum-shaped structure.

4. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 3, characterized in that, Toothed keyways (66) are arranged at the central positions inside the first gear disk (61), the second gear disk (62), the third gear disk (63) and the fourth gear disk (64). The transmission shaft (65) is placed in the keyway (66) in an embedded manner and is engaged.

5. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 4, characterized in that, The adjusting assembly (7) is composed of a pressing plate (71), a lead screw (72), an adjusting nut (73) and four sliding rods (74). One ends of the four sliding rods (74) are fixedly connected to the inner wall of the transmission case (2) and are arranged in a square shape on the outside of the gear mechanism (6).

6. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 5, characterized in that, The four corners of the pressing plate (71) are respectively sleeved on the sliding rods (74) and are slidably connected. A first support spring (704) is sleeved on the sliding rods (74). The two sides of the pressing plate (71) are both connected to the lead screw (72) through screw threads.

7. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 6, characterized in that, One end of the lead screw (72) is movably connected to the inner wall of the transmission case (2). The other end of the lead screw (72) passes through the pressing plate (71) and is screwed to the adjusting nut (73) through screw threads.

8. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 7, characterized in that, A support bearing (75) is fixedly installed at the central position of the pressing plate (71). Toothed keyways (66) are correspondingly arranged on the inner ring of the bearing (75). One end of the transmission shaft (65) is placed on the inner ring of the bearing (75) and is rotatably connected. A second support spring (605) is sleeved on the other end of the transmission shaft (65).

9. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 8, characterized in that, The tensioning device (8) is composed of an air pump (81), a guide wheel (82), a moving plate (83) and a fixing strip (84). The fixing strip (84) is correspondingly installed on the inner wall of the transmission case (2), and a chute is arranged below the fixing strip (84).

10. The gear adjusting mechanism for continuously adjusting the width of a paper sheet according to claim 9, characterized in that, Both sides of the movable plate (83) are embedded and placed under the fixed strip (84) and are slidably connected. One end of the movable plate (83) is movably connected with a guide wheel (82) through a pin shaft, and the other end of the movable plate (83) is fixedly connected to the telescopic pump rod end of an air pump (81). The air pump (81) is fixedly installed on the bottom inner wall of the transmission box (2).

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