A printer or copier drum surface waxing device

Abstract

The utility model provides a printer or copying machine drum surface waxing device, including base, support component, paraffin wax lubricating component, scraper, lubricating roller and drive assembly, support component sets up on the base, can rotate and install drum core on support component, lubricating roller rotates and sets up on support component, lubricating roller and drum core parallelly arranged and side surface contact cooperation, paraffin wax lubricating component and scraper all set up on support component, paraffin wax lubricating component and lubricating roller contact, drive assembly sets up on support component and is connected with lubricating roller and drum core drive, is used for driving lubricating roller and paraffin wax lubricating component relative rotation, and drive the side surface of drum core in turn with lubricating roller and scraper contact. The utility model can realize the effect that drum surface is waxed fast and evenly, avoids scraper to overturn, prolongs the service life of drum core.

Description

Technical Field

[0001] This utility model relates to the field of printing consumables technology, and in particular to a device for waxing the drum surface of a printer or copier. Background Technology

[0002] The drum assembly / OPC (Organic Photoconductor) drum is a core component of copiers and printers. Its main function is to uniformly charge the surface of the photosensitive drum with a negative charge via the main charging roller. The laser beam, after passing through a lens and a mirror, is projected onto the surface of the photosensitive drum, neutralizing the charge in bright areas and thus forming an invisible electrostatic latent image on the surface of the photosensitive drum. During development, toner is attracted to the surface of the photosensitive drum by the potential difference between the surface potential of the photosensitive drum and the developing bias voltage (when positive), turning the electrostatic latent image into a visible image (commonly known as the imaging process). Then, the transfer roller, carrying a positive charge, attracts the toner from the photosensitive drum to the paper to form text or images. After the transfer, most of the toner is transferred to the printing paper, but a small amount of toner remains on the drum. At this point, a scraper removes the remaining toner from the drum, which is then sent to the waste toner container by a cleaning belt, thus cleaning the drum surface and preparing it for the next operation.

[0003] However, during this imaging process, before the print command reaches the drum assembly (i.e., before the toner is adsorbed onto the drum surface to form an image), the OPC drum surface will have at least 6-9 rotations of friction with the scraper. In the first 2-3 rotations, because the OPC drum surface has "talcum powder" acting as a lubricant, the friction between the scraper's working edge and the drum surface will be relatively smooth. After 2-3 rotations, the talcum powder on the OPC drum surface will be cleaned and recycled to the waste toner container by the scraper. At this point, the OPC drum surface will no longer have talcum powder. Therefore, after 4-6 rotations, the scraper's cutting edge and the drum surface will experience dry friction. Under these conditions, the OPC drum surface is prone to wear. On medium- and high-speed printers / copiers (speed ≥ 45 pages / minute), the scraper is very likely to tip over, resulting in a short lifespan for the drum assembly and the OPC drum, or even rendering it unusable.

[0004] Utility model patent CN212083906U discloses an automatic toner recycling device. It uses a puller and scraper installed in front of the waste toner bin to close and open the bin, preventing waste toner splashing during idle periods. When not in use, the scraper hangs down naturally, closing the waste toner bin opening. During operation, the interaction between rollers, a full gear, and a third gear senses the paper below and is driven by it, which in turn pulls the rope to lift the scraper and scrape off the waste toner from the photosensitive drum. While this achieves fully automatic operation without manual intervention and is simple and convenient to use, friction between the scraper and the drum surface after the old toner is scraped off before new toner is adsorbed can easily lead to drum surface wear and scraper tipping over, affecting the lifespan of the photosensitive drum. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a printer or copier drum waxing device that achieves rapid and uniform waxing of the drum surface, avoids scraper tipping, and extends the service life of the drum core.

[0006] To achieve the above objectives, this utility model provides a printer or copier drum waxing device, including a base, a support assembly, a paraffin lubrication assembly, a scraper, a lubrication roller, and a drive assembly. The support assembly is disposed on the base, and a drum core is rotatably mounted on the support assembly. The lubrication roller is rotatably disposed on the support assembly, and the lubrication roller is parallel to the drum core and makes side contact with it. The paraffin lubrication assembly and the scraper are both disposed on the support assembly, and the paraffin lubrication assembly is in contact with the lubrication roller. The drive assembly is disposed on the support assembly and is driven to rotate relative to the lubrication roller and the drum core, and to drive the side of the drum core to contact the lubrication roller and the scraper in sequence.

[0007] In this invention, a paraffin lubrication assembly is used to provide paraffin. A drive assembly is provided to drive the paraffin lubrication assembly to rotate relative to the lubrication roller, so that the paraffin is adhered to the lubrication roller. Since the drum core can contact the lubrication roller and the scraper in turn, the paraffin adhering on the lubrication roller can be attached to the surface of the drum core. The scraper crushes the paraffin lubricating powder on the surface of the drum core into a lubricating film and adheres tightly to the surface of the drum core, so that the drum core can be provided with a continuous lubrication effect during operation, reducing wear on the surface of the drum core and preventing the scraper from tipping over.

[0008] Optionally, the support assembly includes a first support and a second support spaced apart on the base. The first support includes a first base, and the second support includes a second base. The drive assembly is disposed on the second base. Both the first base and the drive assembly are provided with first positioning bearings that respectively mate with both ends of the drum core. Both the first base and the second base are provided with a first pin hole and a second pin hole. The first pin hole is used to engage with a first pin to fix the paraffin lubrication assembly, and the second pin hole is used to engage with a second pin to fix the scraper.

[0009] In this utility model, the paraffin lubrication component and scraper are installed and fixed by setting a first bracket and a second bracket, and the drum core is rotatably installed onto the first base and the second base by setting a first positioning bearing.

[0010] Optionally, the base is provided with two sets of sliding grooves spaced apart, the two sets of sliding grooves extending along the length direction of the base, and the first bracket and the second bracket are detachably installed on the two sets of sliding grooves in a one-to-one correspondence.

[0011] In this invention, the first bracket and the second bracket are detachably installed on two sets of slide grooves, and the distance between the first bracket and the second bracket is changed by adjusting the position of the first bracket and the second bracket on the corresponding slide grooves to adapt to the working needs of drum cores of different sizes and lengths.

[0012] Optionally, the drive assembly includes a protective cover, a drive shaft, a drive rocker arm, and a drive handle. The drive shaft passes through the protective cover, and its outer end is fixedly connected to one end of the drive rocker arm. The drive handle is connected to the other end of the drive rocker arm. A first gear is fixedly sleeved on the inner end of the drive shaft. A bushing is installed on the second seat. The lubrication roller is rotatably connected to the bushing. A second gear and a third gear are respectively sleeved on the drum core and the end of the lubrication roller near the second seat. A gear positioning pin is provided on the second seat. A transmission gear is rotatably mounted on the gear positioning pin and is limited and fixed by a snap ring. The first gear meshes with the second gear and the transmission gear, and the transmission gear also meshes with the third gear.

[0013] In this invention, the drive handle is rotated to drive the drive rocker arm to rotate, which in turn drives the drive shaft to rotate. The first gear, which is fixedly sleeved on the drive shaft, can rotate synchronously. By setting a bushing at the connection between the lubrication roller and the second seat, the rotation of the lubrication roller is made smoother. Since the first gear meshes with the second gear and the transmission gear, and the transmission gear meshes with the third gear, the rotation of the first gear can drive the drum core and the lubrication roller to rotate synchronously. The lubrication roller can roll the adhering paraffin lubricating powder onto the drum core.

[0014] Optionally, a second positioning bearing and a third positioning bearing are also fixedly installed inside the protective cover. The second positioning bearing is rotatably sleeved on the drive shaft, and a positioning pin is axially inserted on the second gear. The third positioning bearing is rotatably sleeved on the positioning pin.

[0015] In this invention, the rotation of the drive shaft is made smoother by setting a second positioning bearing, the drum core can be positioned by setting a positioning pin, and the rotation of the drum core is made smoother by setting a third positioning bearing.

[0016] Optionally, at least two sets of first guide holes are spaced apart circumferentially on the second base, and at least two second guide holes are correspondingly provided on the cover. Guide shafts are inserted into both the first guide holes and the corresponding second guide holes. The cover can move on the second base along the direction of the guide shafts so that the first gear meshes with the second gear and the third gear.

[0017] In this invention, the same guide shaft is inserted into the first guide hole and the second guide hole simultaneously to achieve positioning and engagement between the second guide hole and the first guide hole, thereby achieving positioning of the protective cover and the second base. At the same time, the guide shaft also serves to guide the protective cover, allowing it to move along the guide shaft on the second base, thereby achieving meshing or disengagement of the first gear, the second gear, and the transmission gear.

[0018] Optionally, the second base has at least two first locking holes, and the protective cover has at least two second locking holes corresponding to the at least two first locking holes. Locking pins can be inserted into the corresponding first locking holes and second locking holes.

[0019] In this invention, when the protective cover moves along the guide shaft until the first gear meshes with the second gear and the transmission gear, the protective cover can be locked and fixed on the second base by inserting a locking pin into the first locking hole and the corresponding second locking hole, thus preventing the protective cover from moving along the direction of the guide shaft.

[0020] Optionally, the paraffin lubrication assembly includes a lubrication seat, a paraffin strip, a lubrication support, a spring, and two thrust claws. The lubrication seat is detachably connected to the support assembly. The two thrust claws are rotatably disposed on opposite sides of the interior of the lubrication seat. The spring is located between the two thrust claws and is in a compressed state. The lubrication support is located in the lubrication seat outside the spring and is rotatably connected to the two thrust claws. The paraffin strip is disposed on the lubrication support and extends outward from the lubrication seat, abutting against the side of the lubrication roller. The extension of the spring can drive the two thrust claws to push the lubrication support outward, so that the paraffin strip is always abutting against the side of the lubrication roller.

[0021] In this invention, since the spring is in a compressed state, it tends to recover its elastic deformation and push the two thrust claws to rotate outward. Since the lubrication support is connected to the two thrust claws and the paraffin strip is installed on the lubrication support, the paraffin strip can be pressed against the side of the lubrication roller. When the paraffin strip is worn and consumed, under the pushing action of the spring, the paraffin strip can continue to press against the side of the lubrication roller outward to ensure that the lubrication roller is always provided with paraffin lubrication.

[0022] Beneficial effects:

[0023] In this invention, the paraffin lubrication assembly adheres paraffin to the lubrication roller in rolling contact with it. The paraffin lubricating powder on the lubrication roller is then rolled onto the drum core in rolling contact with it. A scraper rolls the paraffin lubricating powder on the surface of the drum core into a thin lubricating film. Due to the strong adsorption of paraffin, it adheres tightly to the surface of the drum core and is not easily detached. This ensures that the paraffin-formed lubricating film provides continuous lubrication to the drum core during operation, reducing wear on the roller core surface and preventing the scraper from tipping over. Furthermore, compared to the traditional method of manually applying talcum powder, the rolled paraffin lubricating film not only ensures uniformity but also increases efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a first axonometric view of the drumhead waxing device disclosed in this utility model;

[0026] Figure 2 This is a second axonometric view of the drumhead waxing device disclosed in this utility model;

[0027] Figure 3 This is an exploded view of the drumhead waxing device disclosed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the first support disclosed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the second support disclosed in this utility model;

[0030] Figure 6 This is an exploded view of the second support disclosed in this utility model;

[0031] Figure 7 This is an exploded view of a portion of the drive assembly and drum core disclosed in this utility model;

[0032] Figure 8 This is a schematic diagram of the meshing structure of the drive assembly disclosed in this utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the paraffin lubrication component disclosed in this utility model;

[0034] Figure 10 This is an exploded view of the paraffin lubrication component disclosed in this utility model;

[0035] Figure 11 This is a schematic diagram of the first installation state of the drum core disclosed in this utility model;

[0036] Figure 12 This is a schematic diagram of the second installation state of the drum core disclosed in this utility model;

[0037] Figure 13 This is a schematic diagram of the third installation state of the drum core disclosed in this utility model.

[0038] Figure label:

[0039] 1. Base; 11. Slide groove; 2. Bracket assembly; 21. First bracket; 211. First seat; 22. Second bracket; 221. Second seat; 23. First positioning bearing; 241. First pin hole; 242. Second pin hole; 251. First pin; 252. Second pin; 261. Gear positioning pin; 262. Transmission gear; 263. Snap ring; 271. First guide hole; 272. First locking hole; 28. Guide shaft; 3. Paraffin lubrication assembly; 31. Lubrication seat 32. Paraffin wax strip; 33. Lubrication support; 34. Spring; 35. Thrust claw; 4. Scraper; 5. Lubrication roller; 51. Bushing; 52. Third gear; 6. Drive assembly; 61. Protective cover; 611. Second guide hole; 612. Second locking hole; 62. Drive shaft; 63. Drive rocker arm; 64. Drive handle; 65. First gear; 66. Second positioning bearing; 67. Third positioning bearing; 68. Locking pin; 7. Drum core; 71. Second gear; 72. Positioning pin.

[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0043] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] See Figures 1 to 3 A printer or copier drum waxing device according to an embodiment of the present invention includes a base 1, a support assembly 2, a paraffin lubrication assembly 3, a scraper 4, a lubrication roller 5, and a drive assembly 6. The support assembly 2 is disposed on the base 1, and a drum core 7 is rotatably mounted on the support assembly 2. The lubrication roller 5 is rotatably disposed on the support assembly 2, and the lubrication roller 5 and the drum core 7 are arranged parallel to each other and in side contact. The paraffin lubrication assembly 3 and the scraper 4 are both disposed on the support assembly 2, and the paraffin lubrication assembly 3 is in contact with the lubrication roller 5. The drive assembly 6 is disposed on the support assembly 2 and is drivenly connected to the lubrication roller 5 and the drum core 7, for driving the lubrication roller 5 to rotate relative to the paraffin lubrication assembly 3, and for driving the side of the drum core 7 to contact the lubrication roller 5 and the scraper 4 in sequence.

[0045] In this invention, the paraffin lubrication component 3 is used to provide paraffin lubricating powder. By setting the drive component 6 to drive the paraffin lubrication component 3 to rotate relative to the lubrication roller 5, the paraffin lubricating powder is adhered to the lubrication roller 5. Since the drum core 7 can contact the lubrication roller 5 and the scraper 4 in turn, the paraffin lubricating powder adhered to the lubrication roller 5 can be attached to the surface of the drum core 7. The scraper 4 rolls the paraffin lubricating powder on the surface of the drum core 7 into a lubricating film and adheres tightly to the surface of the drum core 7, so that the drum core 7 can be provided with a continuous lubrication effect when it is running, reducing the wear on the surface of the drum core 7 and preventing the scraper 4 from tipping over.

[0046] See Figures 3 to 5In some embodiments of this utility model, the bracket assembly 2 includes a first bracket 21 and a second bracket 22 spaced apart on the base 1. The first bracket 21 includes a first seat 211, and the second bracket 22 includes a second seat 221. The drive assembly 6 is disposed on the second seat 221. Both the first seat 211 and the drive assembly 6 are provided with first positioning bearings 23 that respectively mate with both ends of the drum core 7. Both the first seat 211 and the second seat 221 are provided with a first pin hole 241 and a second pin hole 242. The first pin hole 241 is used to cooperate with a first pin 251 to fix the paraffin lubrication assembly 3, and the second pin hole 242 is used to cooperate with a second pin 252 to fix the scraper 4.

[0047] In this utility model, the paraffin lubrication component 3 and the scraper 4 are installed and fixed by setting the first bracket 21 and the second bracket 22, and the drum core 7 is rotatably installed on the first seat 211 and the second seat 221 by setting the first positioning bearing 23.

[0048] See Figure 3 In some embodiments of this utility model, two sets of sliding grooves 11 are spaced apart on the base 1. The two sets of sliding grooves 11 extend along the length direction of the base 1. The first bracket 21 and the second bracket 22 are detachably installed on the two sets of sliding grooves 11 in a one-to-one correspondence.

[0049] In this utility model, the first bracket 21 and the second bracket 22 are detachably installed on two sets of slide grooves 11, and the positions of the first bracket 21 and the second bracket 22 on the corresponding slide grooves 11 are adjusted to change the distance between the first bracket 21 and the second bracket 22, so as to adapt to the working needs of drum cores 7 of different sizes and lengths.

[0050] See Figure 8In some embodiments of this utility model, the drive assembly 6 includes a protective cover 61, a drive shaft 62, a drive rocker arm 63, and a drive handle 64. The drive shaft 62 passes through the protective cover 61, and the outer end of the drive shaft 62 is fixedly connected to one end of the drive rocker arm 63. The drive handle 64 is connected to the other end of the drive rocker arm 63. A first gear 65 is fixedly sleeved on the inner end of the drive shaft 62. A bushing 51 is installed on the second seat 221. The lubrication roller 5 is rotatably connected to the bushing 51. A second gear 71 and a third gear 52 are respectively sleeved on the ends of the drum core 7 and the lubrication roller 5 near the second seat 221. A gear positioning pin 261 is provided on the second seat 221. A transmission gear 262 is rotatably mounted on the gear positioning pin 261 and limited and fixed by a snap ring 263. The first gear 65 meshes with the second gear 71 and the transmission gear 262 respectively. The transmission gear 262 also meshes with the third gear 52.

[0051] In this utility model, by rotating the drive handle 64, the drive rocker arm 63 is driven to rotate, which in turn drives the drive shaft 62 to rotate. The first gear 65, which is fixedly sleeved on the drive shaft 62, can rotate synchronously. By setting a bushing 51 at the connection between the lubrication roller 5 and the second seat 221, the rotation of the lubrication roller 5 is made smoother. Since the first gear 65 meshes with the second gear 71 and the transmission gear 262, and the transmission gear 262 meshes with the third gear 52, the rotation of the first gear 65 can drive the drum core 7 and the lubrication roller 5 to rotate synchronously. The lubrication roller 5 can roll and adhere the adhering paraffin lubricating powder to the drum core 7.

[0052] See Figure 7 In some embodiments of this utility model, a second positioning bearing 66 and a third positioning bearing 67 are fixedly installed inside the protective cover 61. The second positioning bearing 66 is rotatably sleeved on the drive shaft 62. A positioning pin 72 is axially inserted on the second gear 71. The third positioning bearing 67 is rotatably sleeved on the positioning pin 72.

[0053] In this invention, the rotation of the drive shaft 62 is made smoother by setting the second positioning bearing 66, the drum core 7 can be positioned by setting the positioning pin 72, and the rotation of the drum core 7 is made smoother by setting the third positioning bearing 67.

[0054] See Figure 6In some embodiments of this utility model, at least two sets of first guide holes 271 are provided on the second seat 221 at circumferential intervals, and at least two second guide holes 611 are provided on the protective cover 61. Guide shafts 28 are passed through the first guide holes 271 and the corresponding second guide holes 611. The protective cover 61 can move on the second seat 221 along the direction of the guide shafts 28 so that the first gear 65 meshes with the second gear 71 and the third gear 52.

[0055] In this utility model, the same guide shaft 28 is simultaneously inserted into the first guide hole 271 and the second guide hole 611 to achieve positioning and engagement between the second guide hole 611 and the first guide hole 271, thereby achieving positioning of the protective cover 61 and the second seat 221. At the same time, the guide shaft 28 also serves to guide the protective cover 61, allowing the protective cover 61 to move along the guide shaft 28 on the second seat 221, so as to achieve meshing or disengagement of the first gear 65 with the second gear 71 and the transmission gear 262.

[0056] See Figure 6 In some embodiments of this utility model, the second base 221 is provided with at least two first locking holes 272, and the protective cover 61 is provided with at least two second locking holes 612 corresponding to the at least two first locking holes 272. Locking pins 68 can be inserted into the corresponding first locking holes 272 and second locking holes 612.

[0057] In this utility model, when the protective cover 61 moves along the guide shaft 28 to the point where the first gear 65 meshes with the second gear 71 and the transmission gear 262, the protective cover 61 can be locked and fixed on the second base 221 by inserting the locking pin 68 into the first locking hole 272 and the corresponding second locking hole 612, thus preventing the protective cover 61 from moving along the direction of the guide shaft 28.

[0058] See Figure 9 and Figure 10 In some embodiments of this utility model, the paraffin lubrication assembly 3 includes a lubrication seat 31, a paraffin strip 32, a lubrication support 33, a spring 34, and two thrust claws 35. The lubrication seat 31 is detachably connected to the bracket assembly 2. The two thrust claws 35 are rotatably disposed on both sides inside the lubrication seat 31. The spring 34 is disposed between the two thrust claws 35 and is in a compressed state. The lubrication support 33 is disposed inside the lubrication seat 31 outside the spring 34 and is rotatably connected to the two thrust claws 35. The paraffin strip 32 is disposed on the lubrication support 33 and extends out of the lubrication seat 31 and abuts against the side of the lubrication roller 5. The extension of the spring 34 can drive the two thrust claws 35 to push the lubrication support 33 outward so that the paraffin strip 32 is always abutting against the side of the lubrication roller 5.

[0059] In this invention, since the spring 34 is in a compressed state, the spring 34 has a tendency to recover its elastic deformation and push the two thrust claws 35 to rotate outward. Since the lubrication support 33 is connected to the two thrust claws 35 and the paraffin strip 32 is installed on the lubrication support 33, the paraffin strip 32 can be pressed against the side of the lubrication roller 5. When the paraffin strip 32 is worn and consumed, under the pushing action of the spring 34, the paraffin strip 32 can continue to press against the side of the lubrication roller 5 to ensure that the lubrication roller 5 is always provided with paraffin lubrication.

[0060] In use, this invention first adjusts the positions of the first bracket 21 and the second bracket 22 within the slide groove 11 according to the length of the drum core 7, so that the distance between the first bracket 21 and the second bracket 22 meets the requirements. The paraffin lubrication assembly 3 is fixed by inserting the first pin 251 through the hole in the lubrication seat 31 and into the first pin hole 241 of the first seat 211 and the second seat 221. The scraper 4 is fixed by inserting the second pin 252 through the hole in the scraper 4 and into the second pin hole 242 of the first seat 211 and the second seat 221. The lubrication roller 5 is inserted into the bushing 51, allowing the lubrication roller 5 to rotate on the first seat 211 and the second seat 221, while the side of the lubrication roller 5 can contact the paraffin strip 32. Figures 11 to 13 As shown, one end of the drum core 7 is inserted into the first positioning bearing 23 of the first seat 211, and the other end of the roller core is placed into the second seat 221. The drive assembly 6 is moved along the guide shaft 28 toward the drum core 7, so that the first gear 65 meshes with the transmission gear 262 and the second gear 71. The drive assembly 6 is then locked and fixed on the second seat 221 by the locking pin 68. Since the surface of the drum core 7 is in contact with the lubrication roller 5 and the scraper 4, when the drive rocker arm 63 is rotated counterclockwise to drive the drive handle 64 to rotate, the rotation of the drive shaft 62 drives the first gear 65 to rotate, which in turn drives the drive gear and the second gear 71 to rotate. The third gear 52 is driven to rotate by the drive gear. Therefore, the lubrication roller 5 and the drum core 7 can rotate, and the paraffin lubricating powder of the paraffin strip 32 can adhere to the lubrication roller 5 and adhere to the surface of the drum core 7. The scraper 4 rolls the paraffin lubricating powder on the surface of the drum core 7 into a lubricating film and adheres tightly to the surface of the drum core 7, so that the drum core 7 can be provided with a continuous lubrication effect when it is running. This avoids the scraper 4 scraping off the waste powder on the surface of the drum core 7, and prevents the scraper 4 from overturning and extends the service life of the drum core 7.

[0061] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A device for waxing the drum surface of a printer or copier, characterized in that, The assembly includes a base (1), a support assembly (2), a paraffin lubrication assembly (3), a scraper (4), a lubrication roller (5), and a drive assembly (6). The support assembly (2) is mounted on the base (1), and a drum core (7) is rotatably mounted on the support assembly (2). The lubrication roller (5) is rotatably mounted on the support assembly (2), and the lubrication roller (5) and the drum core (7) are arranged parallel to each other and in side contact. The paraffin lubrication assembly (3) and the scraper (4) are both mounted on the support assembly (2), and the paraffin lubrication assembly (3) is in contact with the lubrication roller (5). The drive assembly (6) is mounted on the support assembly (2) and is connected to the lubrication roller (5) and the drum core (7) for driving the lubrication roller (5) to rotate relative to the paraffin lubrication assembly (3) and driving the side of the drum core (7) to contact the lubrication roller (5) and the scraper (4) in sequence.

2. The printer or copier drum waxing device according to claim 1, characterized in that, The bracket assembly (2) includes a first bracket (21) and a second bracket (22) spaced apart on the base (1). The first bracket (21) includes a first seat (211), and the second bracket (22) includes a second seat (221). The drive assembly (6) is disposed on the second seat (221). The first seat (211) and the drive assembly (6) are each provided with a first positioning bearing (23) that is respectively connected to both ends of the drum core (7). The first seat (211) and the second seat (221) are each provided with a first pin hole (241) and a second pin hole (242). The first pin hole (241) is used to cooperate with the first pin (251) to fix the paraffin lubrication assembly (3), and the second pin hole (242) is used to cooperate with the second pin (252) to fix the scraper (4).

3. A printer or copier drum waxing device according to claim 2, characterized in that, The base (1) is provided with two sets of sliding grooves (11) spaced apart. The two sets of sliding grooves (11) extend along the length direction of the base (1). The first bracket (21) and the second bracket (22) are detachably installed on the two sets of sliding grooves (11) in a one-to-one correspondence.

4. A printer or copier drum waxing device according to claim 2, characterized in that, The drive assembly (6) includes a protective cover (61), a drive shaft (62), a drive rocker arm (63), and a drive handle (64). The drive shaft (62) passes through the protective cover (61). The outer end of the drive shaft (62) is fixedly connected to one end of the drive rocker arm (63). The drive handle (64) is connected to the other end of the drive rocker arm (63). A first gear (65) is fixedly sleeved on the inner end of the drive shaft (62). A bushing (51) is installed on the second seat (221). The lubrication roller (5) rotates with the bushing (51). The drum core (7) and the lubrication roller (5) are connected, and the ends of the drum core (7) and the lubrication roller (5) near the second seat (221) are respectively fitted with a second gear (71) and a third gear (52). The second seat (221) is provided with a gear positioning pin (261), and a transmission gear (262) is rotatably provided on the gear positioning pin (261) and limited and fixed by a snap ring (263). The first gear (65) meshes with the second gear (71) and the transmission gear (262) respectively, and the transmission gear (262) also meshes with the third gear (52).

5. A printer or copier drum waxing device according to claim 4, characterized in that, The protective cover (61) is also fixedly provided with a second positioning bearing (66) and a third positioning bearing (67). The second positioning bearing (66) is rotatably sleeved on the drive shaft (62). The second gear (71) is axially provided with a positioning pin (72). The third positioning bearing (67) is rotatably sleeved on the positioning pin (72).

6. A printer or copier drum waxing device according to claim 4, characterized in that, The second base (221) has at least two sets of first guide holes (271) spaced apart along the circumference, and the protective cover (61) has at least two corresponding second guide holes (611). Guide shafts (28) are inserted into the first guide holes (271) and the corresponding second guide holes (611). The protective cover (61) can move on the second base (221) along the direction of the guide shafts (28) so that the first gear (65) meshes with the second gear (71) and the third gear (52).

7. A printer or copier drum waxing device according to claim 4, characterized in that, The second base (221) has at least two first locking holes (272), and the cover (61) has at least two second locking holes (612) corresponding to the at least two first locking holes (272). Locking pins (68) can be inserted into the corresponding first locking holes (272) and second locking holes (612).

8. A printer or copier drum waxing device according to any one of claims 1 to 7, characterized in that, The paraffin lubrication assembly (3) includes a lubrication seat (31), a paraffin strip (32), a lubrication support (33), a spring (34), and two thrust claws (35). The lubrication seat (31) is detachably connected to the support assembly (2). The two thrust claws (35) are rotatably disposed on both sides inside the lubrication seat (31). The spring (34) is disposed between the two thrust claws (35) and is in a compressed state. The lubrication support (33) is disposed on the... The spring (34) is located inside the lubrication seat (31) on the outside and is driven to rotate by the two thrust claws (35). The paraffin strip (32) is provided on the lubrication support (33) and extends out of the lubrication seat (31) and abuts against the side of the lubrication roller (5). The extension of the spring (34) can drive the two thrust claws (35) to push the lubrication support (33) outward so that the paraffin strip (32) is always abutted against the side of the lubrication roller (5).

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