Clean production equipment for coated white board

Abstract

The utility model relates to clean production equipment for coated white board paper, and aims to solve the technical problems that the production efficiency is influenced due to the fact that a machine needs to be paused when a coating roller is manually cleaned at present, and abrasion is possibly accelerated and even the surface is damaged due to the fact that a fixed scraper knife is in contact with a high-speed rotating roller surface for a long time. The supporting shaft penetrates through the side wall of the supporting frame and is rotationally connected with the supporting frame through a bearing seat, a rotating disc is fixedly connected to the outer end of the supporting shaft, an extrusion groove is formed in the side wall of the rotating disc, an extrusion block is slidably connected to the inner side of the extrusion groove, and a stirring frame is fixedly connected to the outer side wall of the extrusion block; the two ends of the fixing rod penetrate through the sliding blocks on the two sides respectively and are fixedly connected with the sliding blocks, the end, facing the rotary disc, of the fixing rod is fixedly connected with a cam, and the bottom of the fixing rod is fixedly connected with a scraper knife. The service life and the production efficiency of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of coated whiteboard paper production technology, specifically a clean production equipment for coated whiteboard paper. Background Technology

[0002] Coated white cardboard is a processed paperboard made by coating a base paperboard with white paint and then finishing it. It is mainly used for making packaging boxes after single-sided color printing and is an important material for sales packaging. Because of its thickness, it has a certain degree of cushioning, thus providing some protection for product packaging.

[0003] In the production process, the coating roller, as a core component, directly affects the uniformity of the coating and the quality of the product due to its surface cleanliness. In traditional coating processes, uncured paint easily remains on the surface of the coating roller. If not cleaned in time, the residue will gradually accumulate and form clumps, leading to defects such as streaks and bubbles in subsequent coating processes. Existing cleaning methods mainly rely on manual cleaning or using a fixed scraper to scrape the surface of the rotating coating roller. Manual cleaning requires stopping the machine, thus affecting production efficiency. Some coating rollers rotate at high speeds during production, and prolonged contact between the fixed scraper and the high-speed rotating roller surface may accelerate wear or even damage the surface. The scraped-off cured paint residue needs to be cleaned manually, which not only increases labor intensity but may also cause secondary adhesion of residue to the roller surface if not cleaned in time. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a cleaning production equipment for coating whiteboard paper. This solves the technical problems of the current manual cleaning of coating rollers requiring machine pausing, which affects production efficiency, and the fixed scraper being in contact with the high-speed rotating roller surface for a long time, which may accelerate wear or even damage the surface. The scraped residue may also re-adhere to the roller surface due to untimely cleaning.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A cleaning production device for coating whiteboard paper is designed, including a support shaft and a fixed rod. The support shaft passes through the side wall of a support frame and is rotatably connected to the support frame via a bearing seat. A turntable is fixedly connected to the outer end of the support shaft. An extrusion groove is formed on the side wall of the turntable. An extrusion block is slidably connected to the inner side of the extrusion groove. A toggle frame is fixedly connected to the outer side wall of the extrusion block. Both ends of the fixed rod pass through sliders on both sides and are fixedly connected to the sliders. A cam is fixedly connected to the end of the fixed rod facing the turntable. A scraper is fixedly connected to the bottom of the fixed rod. Two side frames are fixedly connected to the side wall of the support frame below the scraper. A collection trough is fixedly connected to the top of the side frames. A transmission rod is rotatably connected to the inner side of the collection trough. An auger is fixedly connected to the outer wall of the transmission rod. The end of the transmission rod near the toggle frame passes through the side wall of the collection trough and is rotatably connected to the collection trough via a bearing seat. The support shaft and the transmission rod are connected by a transmission belt.

[0006] Preferably, an exhaust pipe is fixedly connected to the outer wall of the collection tank and communicates with the exhaust pipe. An exhaust frame is fixedly connected to one end of the exhaust pipe. A connecting rod is rotatably connected to the air outlet of the exhaust frame through a bearing seat. A driven gear and a fan blade are fixedly connected to both ends of the connecting rod, respectively.

[0007] Preferably, an intermediate gear is rotatably connected to the side surface of the side frame facing the driven gear, and the intermediate gear meshes with the driven gear. A driving gear is fixedly sleeved on the outer surface of the support shaft, and the driving gear meshes with the intermediate gear.

[0008] Preferably, one end of the slider is located inside the groove opened on the side wall of the support frame and is slidably connected to the groove. A protrusion is fixedly connected to the side wall of the support frame directly below the slider, and a screw is threaded through the bottom of the protrusion and threadedly connected to the screw.

[0009] Preferably, a coating roller body is fixedly connected to the outer surface of the support shaft, and the end of the support shaft away from the turntable is fixedly connected to the tail end of the drive shaft of the servo motor. The servo motor is fixedly connected to the outer side wall of the support frame.

[0010] Preferably, a compression spring is fixedly connected between the extrusion block and the inner top end of the extrusion groove, and a return spring is fixedly connected between the slider and the inner top end of the groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model sets a cam at one end of a fixed rod and a turntable at one end of a support shaft. When the coating roller body rotates too fast, the extrusion block will move the actuating frame outwards from the turntable. Then, during the rotation, it will push the cam, causing the fixed rod to move the scraper upwards and detach from the surface of the coating roller, achieving dynamic contact. At low speeds, the scraper adheres to the roller surface to clean residual coating, and at high speeds, it is lifted away to reduce wear, thereby improving service life and production efficiency.

[0013] 2. This utility model collects solid particle residue by setting a collection groove below the shovel. The support shaft can drive the rotating rod to rotate together during rotation. During the rotation of the transmission rod, the collected residue is discharged in time through the auger, avoiding accumulation and overflow. It is convenient, quick and convenient and improves the cleaning efficiency. Attached Figure Description

[0014] Figure 1 This is an overall view of the present invention;

[0015] Figure 2 This is a partial structural schematic diagram of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the exhaust frame of this utility model;

[0018] Figure 5 This is a cross-sectional schematic diagram of the toggle mechanism of this utility model;

[0019] Figure 6 This is a partial enlarged view of point A of this utility model;

[0020] In the diagram: 1. Support frame; 2. Coating roller body; 201. Support shaft; 202. Drive gear; 203. Turntable; 3. Extrusion groove; 301. Extrusion block; 302. Actuating frame; 303. Extrusion spring; 4. Cam; 5. Fixing rod; 501. Shovel; 6. Side frame; 7. Collection groove; 8. Transmission rod; 801. Transmission belt; 802. Screw; 9. Exhaust pipe; 10. Exhaust frame; 11. Connecting rod; 111. Driven gear; 112. Fan blade; 12. Intermediate gear; 13. Slide groove; 131. Return spring; 14. Slider; 15. Protrusion; 16. Screw; 17. Servo motor. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Example 1: A clean production equipment for coating whiteboard paper, see [link to example]. Figures 1 to 6The system includes a support shaft 201 and a fixing rod 5. A coating roller body 2 is fixedly connected to the outer surface of the support shaft 201. The end of the support shaft 201 away from the turntable 203 is fixedly connected to the tail end of the drive shaft of a servo motor 17. The servo motor 17 drives the support shaft 201 to rotate, thereby driving the coating roller body 2 to rotate. The servo motor 17 is fixedly connected to the outer wall of the support frame 1. The support shaft 201 passes through the side wall of the support frame 1 and is rotatably connected to the support frame 1 through a bearing seat. The outer surface of the support shaft 201 is fixedly connected to the inner ring of its bearing seat, and the outer ring of the bearing seat is fixedly connected to the inner wall of the support frame 1, thus ensuring that it can rotate without detaching from the support frame 1. A turntable 203 is fixedly connected to the outer end of the support shaft 201. An extrusion groove 3 is formed on the side wall of the turntable 203. An extrusion block 301 is slidably connected to the inner side of the extrusion groove 3. An extrusion spring 303 is fixedly connected between the extrusion block 301 and the inner top of the extrusion groove 3. A toggle frame 302 is fixedly connected to the outer wall of the extrusion block 301. When the rotation speed of the support shaft 201 and the coating roller body 2 is too fast, the extrusion block 301 will be thrown towards the edge of the turntable 203, thereby squeezing the extrusion spring 303 and causing the toggle frame 302 to extend out of the surface range of the turntable 203. In the rotation, it will contact the cam 4 and push the cam 4 and the scraper 501 to temporarily separate from the surface of the coating roller body 2. Since there will be a period of time after lifting and resetting, the toggle frame 302 can continuously push the cam 4 to keep the scraper 501 in the disengaged state because the rotation speed of the turntable 203 is too fast.

[0023] It should be noted that the surfaces of the actuating frame 302 and the cam 4 are very smooth, which reduces friction. Furthermore, during the centrifugal process of the actuating frame 302 driven by the pressing block 301, the two ends of the actuating frame 302 will never leave the surface range of the turntable 203, thus avoiding the sharp edges at both ends from contacting the cam 4 and getting stuck, which would affect the normal rotation of the support shaft 201.

[0024] The fixed rod 5 has two ends that pass through the sliders 14 on both sides and are fixedly connected to the sliders 14. One end of the slider 14 is located inside the groove 13 opened on the side wall of the support frame 1 and is slidably connected to the groove 13. A return spring 131 is fixedly connected between the slider 14 and the inner top of the groove 13. When the protrusion 15 is pushed by the actuating frame 302, the fixed rod 5 and the slider 14 will move upward and squeeze the return spring 131 above. When the speed of the coating roller body 2 decreases and loses its ability to push the cam 4, the return spring 131 will push the slider 14 and the fixed rod 5 back to the bottom of the groove 13, so that the scraper 501 can continue to clean the surface of the coating roller body 2.

[0025] Furthermore, a protrusion 15 is fixedly connected to the side wall of the support frame 1 directly below the slider 14. A screw 16 passes through the bottom of the protrusion 15 and is threadedly connected to the screw 16. When cleaning is not required, in order to prevent the scraper 501 from always contacting the coating roller body 2, the screw 16 can be twisted to move the screw 16 upward, thereby pushing the slider 14 upward. This can provide a support for the slider 14, allowing the scraper 501 to detach from the surface of the coating roller and suspend the cleaning operation.

[0026] Specifically, a cam 4 is fixedly connected to one end of the fixed rod 5 facing the turntable 203, and a scraper 501 is fixedly connected to the bottom of the fixed rod 5. When the cam 4 is pushed, the fixed rod 5 and the scraper 501 are also lifted synchronously. Two side frames 6 are fixedly connected to the side wall of the support frame 1 below the scraper 501, and a collection trough 7 is fixedly connected to the top of the side frame 6. The collection trough 7 is mainly used to collect the solidified coating scraped off by the scraper 501 above. Although the collection trough 7 is very close to the coating roller body 2, it does not contact it, so as not to affect the rotation of the coating roller body 2. During the descent of the solid coating particles, if they fall into the gap between the collection tank 7 and the coating roller body 2 instead of entering the collection tank 7, they will be lifted up again by the rotating coating roller body 2 and then descend again until they enter the collection tank 7. The inner side of the collection tank 7 is rotatably connected to a transmission rod 8, and the outer wall of the transmission rod 8 is fixedly connected to an auger 802. During the rotation of the transmission rod 8 and the auger 802, some solid coating particles that have entered the collection tank 7 will be pushed outward, thereby completing the cleaning and collection. Compared with manual cleaning, this method is time-saving, labor-saving, and easy to operate.

[0027] Furthermore, the end of the transmission rod 8 near the actuating frame 302 passes through the side wall of the collection trough 7 and is rotatably connected to the collection trough 7 through a bearing seat. The outer surface of the transmission rod 8 is fixedly connected to the inner ring of its bearing seat, and the outer ring of the bearing seat is fixedly connected to the inner wall of the collection trough 7, thus ensuring normal rotation without detaching from the collection trough 7. The support shaft 201 and the transmission rod 8 are connected by a transmission belt 801. The support shaft 201 can drive the transmission rod 8 to rotate while driving the coating roller body 2 to rotate, so there is no need to add a motor, reducing the cost of use.

[0028] In practical use, such as Figure 4As shown, an exhaust pipe 9 is fixedly connected to and communicates with the outer wall of the collection tank 7. An exhaust frame 10 is fixedly connected to one end of the exhaust pipe 9. A connecting rod 11 is rotatably connected to the air outlet of the exhaust frame 10 through a bearing seat. The outer wall of the connecting rod 11 is fixedly connected to the inner ring of its bearing seat, and the outer ring of the bearing seat is fixedly connected to the inner wall of the exhaust frame 10. Driven gear 111 and fan blade 112 are fixedly connected to both ends of the connecting rod 11, respectively. An intermediate gear 12 is rotatably connected to one side surface of the side frame 6 facing the driven gear 111. The intermediate gear 12 meshes with the driven gear 111. A drive gear 202 is fixedly sleeved on the outer surface of the support shaft 201. The drive gear 202 and the intermediate gear 111 are connected to each other. 2. During the rotation of the support shaft 201, the driven gear 111 is driven to rotate through the drive gear 202 and the intermediate gear 12, thereby causing the fan blade 112 on the connecting rod 11 to rotate. During the rotation, an outward suction force is generated, which absorbs the scraped paint particles during the collection process in the collection tank 7, making it easier for these particles to enter the collection tank 7 and improving the collection efficiency of the collection tank 7. Furthermore, the size of the drive gear 202 is much larger than that of the driven gear 111, so the rotation speed of the driven gear 111 is faster than that of the drive gear 202 and the intermediate gear 12, and the airflow generated by the fan blade 112 is also greater, providing a greater suction force.

[0029] It should be noted that a filter screen that meets the curvature of the inner wall of the collection tank 7 will be installed at the connection point between the collection tank 7 and the exhaust pipe 9, so as to block the gray paint particles and allow the auger 802 to continue to carry these particles and fragments away from the collection tank 7, without them being sucked into the exhaust pipe 9 and the exhaust frame 10 and causing blockage.

[0030] It is worth mentioning that a transmission roller of the same size is provided below the coating roller body 2 to facilitate the transmission of the white cardboard paper passing through. The shaft of the transmission roller is also provided with a gear of the same size as the drive gear 202, and the latter meshes with each other. Thus, when the coating roller body 2 is driven by the servo motor 17, the transmission roller can also rotate at the same speed and in the opposite direction to process the white cardboard paper. A feeding pipe is provided between the support frame 1 above the coating roller body 2. The coating material reaches the coating roller through the pipe, thereby coating the surface of the white cardboard paper and performing the processing operation.

[0031] Working Principle: This equipment drives the turntable 203 to rotate at high speed via the support shaft 201. Centrifugal force causes the extrusion block 301 to move the actuating frame 302 outward, pushing the cam 4 to lift the fixing rod 5. This causes the scraper 501 to intermittently detach from the coating roller surface, achieving dynamic contact. At low speeds, the scraper 501 adheres to the roller surface to clean residual coating, while at high speeds, it automatically detaches to reduce wear. Simultaneously, the support shaft 201 drives the auger 802 in the collection tank 7 to rotate via the transmission belt 801, transporting the scraped residue to an external recycling device for timely cleaning to prevent accumulation. This eliminates the need for additional motors, thus controlling costs. The ventilation system, driven by the drive gear 202 and the fan blades 112, generates negative pressure to adsorb scattered particles into the collection tank 7, preventing residue from detaching during transport and providing suction to facilitate residue entry into the collection tank 7. The entire process can be completed without stopping the machine for cleaning and residue recovery, significantly reducing manual intervention and ensuring stable surface cleanliness of the coating roller. At the same time, the dynamic avoidance mechanism reduces wear on the scraper 501 and the roller surface, extends equipment life, improves production efficiency, and reduces maintenance costs.

[0032] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0033] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A clean production equipment for coating whiteboard paper, comprising a support shaft (201) and a fixing rod (5), characterized in that, The support shaft (201) passes through the side wall of the support frame (1) and is rotatably connected to the support frame (1) through a bearing seat. A turntable (203) is fixedly connected to the outer end of the support shaft (201). An extrusion groove (3) is provided on the side wall of the turntable (203). An extrusion block (301) is slidably connected to the inner side of the extrusion groove (3). An actuating frame (302) is fixedly connected to the outer side wall of the extrusion block (301). The two ends of the fixing rod (5) pass through the sliders (14) on both sides and are fixedly connected to the sliders (14). A cam (4) is fixedly connected to the end of the fixing rod (5) facing the turntable (203). A shovel (501) is fixedly connected to the bottom of the fixed rod (5). Two side frames (6) are fixedly connected to the side wall of the support frame (1) below the shovel (501). A collection trough (7) is fixedly connected to the top of the side frame (6). A transmission rod (8) is rotatably connected to the inner side of the collection trough (7). An auger (802) is fixedly connected to the outer wall of the transmission rod (8). The end of the transmission rod (8) near the actuating frame (302) passes through the side wall of the collection trough (7) and is rotatably connected to the collection trough (7) through a bearing seat. The support shaft (201) and the transmission rod (8) are connected by a transmission belt (801).

2. The clean production equipment for coating whiteboard paper as described in claim 1, characterized in that, The outer wall of the collection trough (7) is fixedly connected to an exhaust pipe (9) and communicates with the exhaust pipe (9). One end of the exhaust pipe (9) is fixedly connected to an exhaust frame (10). The exhaust port of the exhaust frame (10) is rotatably connected to a connecting rod (11) through a bearing seat. Both ends of the connecting rod (11) are fixedly connected to a driven gear (111) and a fan blade (112).

3. The clean production equipment for coating whiteboard paper as described in claim 1, characterized in that, The side frame (6) is rotatably connected to an intermediate gear (12) on one side surface facing the driven gear (111). The intermediate gear (12) meshes with the driven gear (111). The outer surface of the support shaft (201) is fixedly sleeved with a driving gear (202). The driving gear (202) meshes with the intermediate gear (12).

4. The clean production equipment for coating whiteboard paper as described in claim 1, characterized in that, One end of the slider (14) is located inside the groove (13) opened on the side wall of the support frame (1) and is slidably connected to the groove (13). A protrusion (15) is fixedly connected to the side wall of the support frame (1) directly below the slider (14). A screw (16) passes through the bottom of the protrusion (15) and is threadedly connected to the screw (16).

5. The clean production equipment for coating whiteboard paper as described in claim 1, characterized in that, The outer surface of the support shaft (201) is fixedly connected to the coating roller body (2), and the end of the support shaft (201) away from the turntable (203) is fixedly connected to the tail end of the transmission shaft of the servo motor (17). The servo motor (17) is fixedly connected to the outer wall of the support frame (1).

6. The clean production equipment for coating whiteboard paper as described in claim 1, characterized in that, A compression spring (303) is fixedly connected between the inner top end of the compression block (301) and the compression groove (3), and a return spring (131) is fixedly connected between the slider (14) and the inner top end of the groove (13).

Images