Twisting drum wheel cleaning device

Abstract

The utility model relates to the technical field of cigarette production equipment, in particular to a twisting and connecting drum cleaning device which comprises a cleaning structure and a negative pressure recycling structure. The cleaning structure comprises a brush shaft, and the brush shaft is connected with the transmission shaft through a differential assembly for driving; the negative pressure recycling structure comprises a negative pressure recycling pipe which is connected with a negative pressure machine, a plurality of recycling openings facing the cleaning structure are formed in the side face of the negative pressure recycling pipe, and a scraper knife tangent to the twisting and connecting drum wheel is arranged at the bottom of the negative pressure recycling pipe; according to the device, the twisting drum wheel can be continuously and automatically cleaned in the operation process of equipment, swept glue dirt, foreign matter and the like are discharged out of a machine table in time through the negative pressure recovery structure, secondary pollution is effectively avoided, the cleaning frequency of the drum wheel is reduced, the maintenance work intensity is relieved, and the appearance quality of cigarettes is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, in particular to a rubbing drum wheel cleaning device. Background Art

[0002] The cigarette-tipped machine is an important equipment used in cigarette production. It is mainly composed of a splicing drum and a rubbing board. Its function is to rely on negative pressure to adsorb the double-length cigarette bundles with pre-sticked tipping paper sheets into the cigarette receiving groove of the stable-running drum. The cigarette bundles rotate to the rubbing board as the splicing drum rotates, and roll between the splicing drum and the rubbing board to be rolled into double-length cigarettes.

[0003] After the splicing machine has been running for a period of time, glue on the cigarette paper will overflow and leak, which will cause glue scale to adhere to the surface of the splicing drum, and foreign matter such as cigarette dust, paper scraps, and paper pieces will adhere to the surface of the splicing drum; the foreign matter and glue scale on the splicing drum surface will affect the splicing quality of double-length cigarettes, and it is easy to have quality defects such as wrinkled cigarettes, skewed tipping paper, and air leakage of cigarettes. It will also affect the stability of the splicing process, causing blockage of the splicing plate, and greatly increasing the failure rate of the splicing machine; therefore, in production, operators need to frequently and regularly check the cleanliness of the splicing drum surface, and stop the machine for cleaning when necessary; this will seriously affect the production efficiency of the equipment and increase the maintenance workload; and the existing drum cleaning device will sweep glue scale, foreign matter, etc. off the drum, and there is a problem that they fall back onto the drum, causing secondary pollution. Utility Model Content

[0004] The utility model aims to provide a splicing drum cleaning device which can automatically clean the splicing drum during operation and can timely discharge the swept adhesive dirt, foreign matter and the like to avoid secondary pollution.

[0005] Based on the above purpose, the utility model adopts the following technical solutions:

[0006] A splicing drum cleaning device comprises a cleaning structure, which comprises a brush shaft, on which bristles are arranged in cooperation with the splicing drum; the brush shaft is arranged parallel to the central axis of the splicing drum, a base is rotatably connected to the brush shaft, and the base is fixedly arranged on a machine platform; a negative pressure recovery structure is arranged in cooperation with the cleaning structure, and the negative pressure recovery structure is arranged above the splicing drum.

[0007] Preferably, the negative pressure recovery structure includes a fixed plate, which is fixedly arranged on the machine platform; a negative pressure recovery pipe is fixedly arranged on the fixed plate, and a vent hole cooperating with the negative pressure recovery pipe is arranged in the fixed plate.

[0008] Preferably, the negative pressure recovery pipe is hollow inside, one end is connected to the negative pressure machine through a vent, and the other end is closed; a recovery port is provided on the side of the negative pressure recovery pipe, and a scraper is provided at the bottom of the negative pressure recovery pipe in cooperation with the rubbing drum.

[0009] Preferably, the central axis of the negative pressure recovery pipe is arranged parallel to the central axis of the rubbing drum, and the recovery port and the scraper are both arranged in the direction of the brush axis; the scraper is tangentially matched with the outer side surface of the rubbing drum.

[0010] Preferably, the brush shaft is arranged obliquely above the splicing drum, and the distance between the brush shaft and the splicing drum is smaller than the length of the bristles; the rotation direction of the brush shaft is opposite to that of the splicing drum, and the tangential speed direction of the contact surface between the brush shaft and the splicing drum is toward the negative pressure recovery pipe.

[0011] Preferably, a transmission structure is provided in the base, and the brush shaft is connected to the motor through the transmission structure; the transmission structure includes a transmission shaft connected to the motor, and the transmission shaft is transmission-connected to the brush shaft through a differential assembly.

[0012] Preferably, the differential assembly includes two pairs of pulleys respectively arranged on the transmission shaft and the brush shaft, including a pair of inner pulleys and a pair of outer pulleys, and the pair of inner pulleys and the pair of outer pulleys are respectively connected by transmission belts; the inner pulleys and the outer pulleys arranged on the brush shaft and the inner pulley arranged on the transmission shaft have the same number of teeth and are smaller than the outer gear arranged on the transmission shaft; the two pulleys on the transmission shaft are fixedly connected to the transmission shaft by a key, the inner pulley on the brush shaft is fixedly connected to the brush shaft by a key, and the outer pulley is fixedly connected to the inner cam sleeved on the brush shaft by a screw.

[0013] The beneficial effects of the utility model are:

[0014] The utility model comprises a cleaning mechanism and a negative pressure recovery structure, which can automatically clean the surface of the splicing drum during equipment operation, and sweep away glue scale and various foreign matter stained on the surface of the splicing drum; at the same time, through the negative pressure recovery mechanism, the swept glue scale and foreign matter can be promptly sucked into the negative pressure recovery pipe through the recovery port on the negative pressure recovery pipe, and discharged out of the equipment through the pipeline, so as to prevent the swept glue scale and foreign matter from falling onto the drum again and causing secondary pollution, effectively reducing the number of cleaning and maintenance times of the splicing drum in daily production, greatly reducing the number of times the scrubbing plate is blocked, improving the production quality of cigarettes, ensuring the appearance of cigarettes, and improving the stability of equipment operation.

[0015] The utility model arranges the cleaning mechanism obliquely above the splicing drum, and makes the rotation direction of its brush shaft be the same as that of the drum, and the rotation speed of the brush shaft is higher than the rotation speed of the splicing drum; because the speed tangent directions are the same, the removed adhesive scale and foreign matter will move toward the drum guide plate along the tangent speed direction; the utility model arranges a negative pressure recovery structure on the top of the splicing drum, arranges a scraper tangent to the splicing drum to prevent adhesive scale and foreign matter from falling back onto the splicing drum again, and promptly sucks and discharges the adhesive scale and foreign matter through the negative pressure recovery pipe, thereby avoiding secondary pollution caused by the adhesive scale and foreign matter that have been removed to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cleaning structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the transmission structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the brush structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the negative pressure recovery structure of the utility model.

[0021] In the figure: cleaning structure 1; bottom plate 11; bracket 12; cover plate 13; negative pressure recovery structure 2; fixed plate 21; recovery port 22; scraper 23; negative pressure recovery pipe 24; transmission shaft 3; inner pulley 31 of transmission shaft; outer pulley 32 of transmission shaft; brush shaft 4; inner pulley 41 of brush shaft; outer pulley 42 of brush shaft; inner cam 43; outer cam 44; transmission belt 5; spring 6; positioning pin 7; bristles 8. DETAILED DESCRIPTION

[0022] The following is a further explanation of the present invention in conjunction with specific embodiments. Figure 1 As shown, this embodiment is a cleaning device for a splicing drum in a splicing machine, comprising a cleaning structure 1 and a negative pressure recovery structure 2; the cleaning structure 1 is used to sweep away the residual adhesive scale and foreign matter on the splicing drum, and the negative pressure recovery structure 2 is used to suck the swept adhesive scale and foreign matter into a negative pressure pipe for discharge, and the adhesive scale and foreign matter on the splicing drum will be discharged as shown in FIG. Figure 1 The path indicated by the middle arrow is directly discharged out of the machine after cleaning to avoid secondary contamination of the splicing drum.

[0023] like Figure 2As shown, the cleaning structure 1 includes a brush shaft 4, which is connected to the transmission shaft 3 through a transmission structure in the base; the brush shaft 4 and the transmission shaft 3 are both arranged in the base, and the base includes a bottom plate 11, a bracket 12 and a cover plate 13 connected in sequence, which support and fix the transmission shaft 3 and the brush shaft 4, and are fixedly set on the machine, located obliquely above the rubbing drum.

[0024] The transmission structure arranged in the base mainly includes a group of differential components respectively connecting the transmission shaft 3 and the brush shaft 4, including two pairs of toothed pulleys, namely a pair of inner pulleys and a pair of outer pulleys; wherein, the number of teeth of the inner pulley 31 of the transmission shaft, the inner pulley 41 of the brush shaft and the outer pulley 42 of the brush shaft are equal and smaller than the outer pulley 32 of the transmission shaft; the inner pulley 31 of the transmission shaft, the outer pulley 32 of the transmission shaft and the inner pulley 41 of the brush shaft are respectively fixedly connected to the transmission shaft 3 or the brush shaft 4 by key connection, while the outer pulley 42 of the brush shaft is fixedly connected to the inner cam 43 by screws; the inner cam 43 is sleeved on the outer side of the brush shaft 4, so that the outer pulley 42 of the brush shaft can generate relative rotation with the brush shaft 4.

[0025] like Figure 4 As shown, the brush shaft 4 is connected to the bristles 8 through the outer cam 44 and the positioning pin 7; a spring 6 is also provided at the end of the bristles 8, so that the groove on the bristles 8 and the boss on the outer cam 44 can be closely matched to drive the bristles 8 to rotate synchronously through the brush shaft 4.

[0026] like Figure 1 As shown, the cleaning structure 1 is arranged obliquely above the rubbing drum, and the rotation direction of the rubbing drum is opposite to that of the cleaning structure 1. At this time, the swept glue scale and foreign matter will move toward the upper part of the drum as indicated by the arrow in the figure; the negative pressure recovery structure 2 is arranged above the rubbing drum, so the swept glue scale and foreign matter can be recovered and discharged in time.

[0027] The specific structure of the negative pressure recovery mechanism 2 is as follows: Figure 5 As shown, it includes a fixed plate 21 for fixedly connecting to the machine, and a negative pressure recovery pipe 24 is arranged on the fixed plate 21; the central axis of the negative pressure recovery pipe 24 is arranged parallel to the central axis of the rubbing drum, and its internal hollow free end is closed, and a vent is arranged on the fixed plate 21, one end of the vent is connected to the negative pressure recovery pipe 24, and the other end is connected to the negative pressure machine through a pipeline; the negative pressure generated by the negative pressure machine can be transmitted to the negative pressure recovery pipe 24 through the pipeline and the vent; a plurality of recovery ports 22 are arranged on the side of the negative pressure recovery pipe 24, and the direction in which the recovery port 22 is opened is toward the direction of the cleaning mechanism 1. When the negative pressure machine generates negative pressure, the air pressure in the negative pressure recovery pipe 24 is lower than the external atmospheric pressure, and air will be sucked from the recovery port 22. During the air suction process, the adhesive scale and foreign matter swept off the cleaning structure 1 will be sucked into the negative pressure recovery pipe 24 and discharged out of the machine through the pipeline.

[0028] A scraper 23 is arranged at the bottom end of the negative pressure recovery pipe 24. The scraper 23 is arranged tangentially to the outer surface of the splicing drum, and the direction in which the scraper 23 is arranged is also toward the cleaning structure 1; the scraper 23 can play a blocking role for adhesive scale, foreign matter, etc. during the negative pressure recovery process of the negative pressure recovery pipe 24, and prevent them from leaking to other positions in the machine through the gap between the negative pressure recovery pipe 24 and the splicing drum.

[0029] When this embodiment is actually used, when the splicing machine starts to run, as the splicing drum starts to rotate, the cleaning structure 1 is opened synchronously, in the opposite direction of the rotation of the splicing drum; the rotation speed of the cleaning structure 1 is greater than the rotation speed of the splicing drum, and the glue scale and foreign matter remaining on the splicing drum can be swept down obliquely upward; at the same time, the negative pressure machine starts to work, and the air pressure in the negative pressure recovery pipe 24 is less than the external atmospheric pressure through the pipeline to form a negative pressure; the negative pressure recovery pipe 24 sucks the swept glue scale and foreign matter into the negative pressure recovery pipe 24 through the recovery port 22, and discharges them to the outside of the machine through the pipeline, so as to avoid secondary pollution on the drum caused by the glue scale and foreign matter falling back; this embodiment takes cigarettes as the object, and conducts actual tests on the ZJ112 cigarette-making machine group. The results show that after using this embodiment, the cleaning times of the splicing drum are reduced by 4 times / day, the clogging times of the scrubbing board are reduced by 7 times / day, and the proportion of wrinkled cigarettes is reduced by 7.6%, which effectively improves the operation stability of the equipment and ensures the appearance quality of the cigarettes.

[0030] The above description is only a further explanation of the present invention in combination with specific embodiments. All descriptions do not limit the protection scope of the present invention. Any changes or replacement solutions that can be easily thought of by technicians in this field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A splicing drum cleaning device, comprising a cleaning structure, characterized in that: The cleaning structure comprises a brush shaft, on which bristles are arranged in cooperation with the rubbing drum; the brush shaft is arranged parallel to the central axis of the rubbing drum, and a base is rotatably connected to the brush shaft, and the base is fixedly arranged on the machine platform; a negative pressure recovery structure is arranged in cooperation with the cleaning structure, and the negative pressure recovery structure is arranged above the rubbing drum; the negative pressure recovery structure comprises a fixed plate, and the fixed plate is fixedly arranged on the machine platform; a negative pressure recovery pipe is fixedly arranged on the fixed plate, and a vent hole cooperating with the negative pressure recovery pipe is arranged in the fixed plate; the negative pressure recovery pipe is hollow inside, one end is connected to the negative pressure machine through the vent hole, and the other end is closed; a recovery port is arranged on the side of the negative pressure recovery pipe, and a scraper is arranged at the bottom of the negative pressure recovery pipe in cooperation with the rubbing drum; the central axis of the negative pressure recovery pipe is arranged parallel to the central axis of the rubbing drum, and the recovery port and the scraper are both arranged in the direction of the brush shaft; the scraper is tangentially matched with the outer side surface of the rubbing drum.

2. The splicing drum cleaning device according to claim 1, characterized in that: The brush shaft is arranged obliquely above the splicing drum, and the distance between the brush shaft and the splicing drum is smaller than the length of the bristles; the rotation direction of the brush shaft is opposite to that of the splicing drum, and the tangential speed direction of the contact surface between the brush shaft and the splicing drum is toward the negative pressure recovery pipe.

3. The rubbing drum cleaning device according to claim 2, characterized in that: A transmission structure is arranged in the base, and the brush shaft is connected to the motor through the transmission structure; the transmission structure comprises a transmission shaft connected to the motor, and the transmission shaft is transmission-connected to the brush shaft through a differential assembly.

4. The rubbing drum cleaning device according to claim 3, characterized in that: The differential assembly includes two pairs of pulleys respectively arranged on the transmission shaft and the brush shaft, including a pair of inner pulleys and a pair of outer pulleys, and the pair of inner pulleys and the pair of outer pulleys are respectively connected by transmission belts; the inner pulleys and the outer pulleys arranged on the brush shaft and the inner pulley arranged on the transmission shaft have the same number of teeth and are smaller than the outer gear arranged on the transmission shaft; the two pulleys on the transmission shaft are fixedly connected to the transmission shaft by a key, the inner pulley on the brush shaft is fixedly connected to the brush shaft by a key, and the outer pulley is fixedly connected to the inner cam sleeved on the brush shaft by a screw.

Images