Adjustable cotton pressing device for nitrocotton production

Abstract

The invention relates to the technical field of nitrocotton production, in particular to an adjustable cotton pressing device for nitrocotton production, which comprises a base and an upper cover, the upper cover is movably mounted above the base, a first sliding sleeve and a second sliding sleeve are slidably mounted on side walls of two sides of the upper cover, and a rotating shaft is rotatably mounted between the first sliding sleeve and the second sliding sleeve. And a motor II is fixedly mounted on the side wall of the sliding sleeve II. Through continuous staggering of the first pressing blocks and the second pressing blocks, air in the cotton pressing cavity can be exhausted through the air grooves in the cotton pressing process, the problem that a large amount of heat energy is generated due to the fact that the air in the cotton pressing cavity is pressed is solved, nitrocotton batting in the air grooves is cleaned through the grid scraper, and the cotton batting quality is improved. According to the cotton pressing device, the air groove cannot be blocked in the cotton pressing process, the first pressing block and the second pressing block can alternately and continuously press cotton in the cotton pressing process through movement of the third movable bin in the second movable bin, and during cotton pressing forming, the first pressing block and the second pressing block conduct cotton pressing forming on the same horizontal plane.

Description

Technical Field

[0001] The invention relates to the technical field of nitrocellulose production, in particular to an adjustable cotton pressing device for nitrocellulose production. Background Art

[0002] The production process of nitrocellulose mainly includes the steps of nitration, separation, washing, drying and pressing. In this process, the cotton pressing device plays a vital role, which directly affects the physical properties and chemical stability of the nitrocellulose. The traditional cotton pressing device usually uses an upper pressing plate to press the bottom of the cotton pressing chamber to press the cotton. However, during the cotton pressing process, the space between the cotton pressing chamber and the upper pressing plate is continuously compressed, so that a large amount of heat energy is generated during the cotton pressing process. The nitrocellulose itself is extremely prone to spontaneous combustion, which causes the nitrocellulose to spontaneously combust in the cotton pressing chamber. However, when the existing cotton pressing equipment is used, an air pump is usually used to extract the air inside the cotton pressing chamber to solve the problem of generating a large amount of heat energy during the cotton pressing process. For example, a nitrocellulose production device disclosed in Publication No. CN218989133U When the cotton pressing equipment is used, one end of the exhaust pipe is driven to descend synchronously by the piston, so that the exhaust pipe drives the collecting wheel to rotate counterclockwise to ensure that the length of the right side of the exhaust pipe increases, and then the vacuum pump is started. The vacuum pump extracts the air in the nitrocellulose through the filter and the exhaust pipe, and discharges the air in the nitrocellulose through the exhaust pipe to realize the vacuum operation of the nitrocellulose. However, during the cotton pressing process, the exhaust pipe can only vacuum a small range connected to the piston, and cannot exhaust the entire cotton pressing chamber. In addition, the filter and the exhaust pipe are located at the bottom of the piston, so that the cotton wool of the nitrocellulose blocks the filter during vacuuming, thereby affecting the vacuum effect of the exhaust pipe. In addition, the filter is located at the bottom of the piston. When pressing cotton, the nitrocellulose under the filter cannot reach the required density, so that the density of the nitrocellulose after pressing is uneven and cannot be used. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the background technology and to propose an adjustable cotton pressing device for nitrocellulose production.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An adjustable cotton pressing device for nitrocellulose production comprises a base and an upper cover, the upper cover is movably mounted above the base, a sliding sleeve 1 and a sliding sleeve 2 are slidably mounted on the side walls on both sides of the upper cover, a rotating shaft is rotatably mounted between the sliding sleeve 1 and the sliding sleeve 2, a motor 2 is fixedly mounted on the side wall of the sliding sleeve 2, an output shaft of the motor 2 is fixedly connected to the rotating shaft, two pressing blocks 1 and a pressing block 2 are movably mounted between the base and the upper cover, the pressing block 2 is located between the two pressing blocks 1, a cotton pressing cavity is arranged inside the base, and the cotton pressing cavity A pressure plate 1 is slidably installed inside the cavity, a leaf spring 1 is provided between the bottom of the pressure plate 1 and the cotton pressing cavity, the pressure block 1 and the pressure block 2 are both located above the pressure plate 1, and the tops of the two pressure blocks 1 are integrally formed with a movable bin 1, and three evenly distributed eccentric rollers are fixedly installed on the side walls of the rotating shaft, wherein two of the eccentric rollers are rotatably installed inside the two movable bins 1 respectively, a sliding hole 2 is opened on the top of the upper cover, a sliding rod 2 is fixedly installed on the top of the movable bin 1 by means of threads, and the sliding rod 2 is slidably installed inside the sliding hole 2.

[0006] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, a sliding rod 1 is integrally formed on the side wall of the base, a sliding hole 1 is opened on the side wall of the sliding sleeve 2, and the sliding hole 1 is slidably installed on the outside of the sliding rod 1, an electric motor 1 is fixedly installed on the bottom of the base, a screw rod 1 is fixedly connected to the output shaft of the electric motor 1, a screw hole 1 is opened on the side wall of the sliding sleeve 1, and the screw rod 1 is rotatably installed inside the screw hole 1.

[0007] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, the side walls on both sides of the upper cover are provided with a slide groove 1, the side walls of the slide sleeve 1 and the slide sleeve 2 are integrally formed with a slide groove 2, the slide groove 2 is slidably installed inside the slide groove 1, the side walls on both sides of the upper cover are integrally formed with a spring plate, and a spring 1 is provided between the two spring plates and the side walls of the slide sleeve 1 and the slide sleeve 2.

[0008] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, the top of the pressing block 2 is integrally formed with a movable bin 2, and a movable bin 3 is slidably installed inside the movable bin 2, one of the eccentric rollers is rotatably installed inside the movable bin 3, a partition is integrally formed inside the pressing block 2, a motor 3 is fixedly installed inside the partition, and a gear 1 is fixedly connected to the output shaft of the motor 3, a screw rod 2 is integrally formed at the bottom of the movable bin 3, a gear screw sleeve is rotatably installed on the outer side of the screw rod 2, the gear screw sleeve is rotatably installed inside the partition, and the gear 1 and the gear screw sleeve are meshed.

[0009] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, the side walls of the two pressing blocks 1 are provided with air grooves, the side walls on both sides of the pressing block 2 are provided with the same air grooves, the interior of the air groove is integrally formed with an intercepting grid, the interior of the air groove is slidably mounted with a grid scraper, the side wall of the grid scraper is integrally formed with a rack 2, the interior of the pressing block 1 and the pressing block 2 are integrally formed with a slide, and the rack 2 is slidably mounted on the top of the slide.

[0010] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, the side walls of the two pressing blocks 1 are provided with movable grooves 1, the side walls on both sides of the pressing block 2 are provided with the same movable grooves 1, a movable frame is slidably installed inside each movable groove 1, and a spring 2 is provided between the movable groove 1 and the movable frame.

[0011] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, a rack 1 is integrally formed at the bottom of the movable frame, a gear 2 is rotatably mounted on the side wall of the slide, the gear 2 is meshed with the rack 1, and a gear 3 is integrally formed on the side wall of the gear 2, the gear 3 is meshed with the rack 2.

[0012] In the above-mentioned adjustable cotton pressing device for nitrocellulose production, a locking tooth 2 is slidably installed on the side wall of the movable frame, a spring 3 is arranged between the locking tooth 2 and the movable frame, and a movable groove 2 is provided on the side walls of the two pressing blocks 1, and the side walls on both sides of the pressing block 2 are provided with the same movable groove 2. The movable groove 1 and the movable groove 2 are connected to each other, and a plurality of locking teeth 1 are integrally formed at the bottom of the movable groove 2, and the locking teeth 1 and the locking teeth 2 are meshed with each other.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. The present invention cooperates between the pressing block 1, the pressing block 2 and the eccentric roller. After the motor 2 is started, the rotating shaft drives the eccentric roller to rotate, and the eccentric roller drives the movable bin 1 and the movable bin 3 to move back and forth longitudinally. At this time, the movable bin 3 is located at the bottom of the movable bin 2, so that the two pressing blocks 1 and 2 continuously extrude the nitrocellulose. During the extrusion process of the pressing block 1 and the pressing block 2, the air groove is opened by the mutual staggered movement of the pressing block 1 and the pressing block 2, so that the gas inside the cotton pressing cavity can be discharged. By continuously staggering the pressing block 1 and the pressing block 2, the air inside the cotton pressing cavity can be discharged through the air groove during the cotton pressing process, thereby avoiding the problem of the air inside the cotton pressing cavity being compressed and generating a large amount of heat energy.

[0015] 2. The present invention cooperates between the pressing block 1, the pressing block 2 and the grid scraper. When the pressing block 1 and the pressing block 2 are pressing cotton, the cotton wool of the nitrocellulose follows the air in the cotton pressing cavity and is discharged into the air groove. The interception grid in the air groove intercepts the cotton wool of the nitrocellulose so that the cotton wool of the nitrocellulose stays in the air groove. When the pressing block 1 and the pressing block 2 are staggered, the rising pressing block 2 moves the grid scraper out of the air groove through the movement of the moving frame. When the grid scraper moves out of the air groove, the cotton wool of the nitrocellulose follows the grid scraper to move out of the air groove. The descending pressing block 1 resists the grid scraper that moves out of the air groove and scrapes off the cotton wool on the side wall of the grid scraper. The resistance of the pressing block 1 causes the grid scraper to shrink to its position in the air groove. The nitrocellulose cotton wool in the air groove is cleaned by the grid scraper, so as to ensure that the air groove will not be blocked during the cotton pressing process.

[0016] 3. The present invention cooperates between the pressing block 2 and the movable bin 3. When the pressing block 1 and the pressing block 2 are pressing cotton, the movable bin 3 is located at the bottom of the movable bin 2. The pressing block 2 and the pressing block 1 are arranged alternately, so that the pressing block 1 and the pressing block 2 can press the nitrocellulose continuously and alternately. When the two pressing blocks 1 drive the sliding rod 2 to contact the top of the upper cover, the motor 2 is turned off and the motor 3 is started, so that the movable bin 3 is located at the top of the movable bin 2. At this time, the bottom of the pressing block 2 and the two pressing blocks 1 are on the same horizontal plane. The screw rod 1 is driven by the motor 1, so that the sliding sleeve 1 and the sliding sleeve 2 drive the pressing block 2 and the two pressing blocks 1 through the rotating shaft to press the cotton into shape. The movement of the movable bin 3 inside the movable bin 2 can ensure that during the cotton pressing process, the pressing block 1 and the pressing block 2 are pressed alternately and continuously. When the cotton is pressed into shape, the pressing block 1 and the pressing block 2 are pressed into shape on the same horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 It is a partial cross-sectional view of the overall structure of the present invention;

[0021] Figure 5 For the present invention Figure 4 The enlarged view of point B in the middle;

[0022] Figure 6 It is a disassembly schematic diagram of the upper cover and the rotating shaft in the present invention;

[0023] Figure 7 It is a structural schematic diagram of a pressing block 1 in the present invention;

[0024] Figure 8 It is a structural schematic diagram of the grid scraper and the movable frame in the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the briquette 2 in the present invention;

[0026] Fig.10 It is a structural schematic diagram of the movable warehouse three in the present invention.

[0027] In the figure: 1, base; 111, slide bar 1; 112, screw bar 1; 113, motor 1; 12, upper cover; 121, slide sleeve 1; 122, slide sleeve 2; 123, slide slot 1; 124, spring 1; 125, screw hole 1; 126, slide hole 1; 127, slide slot 2; 128, slide hole 2; 129, spring plate; 13, cotton pressing chamber; 131, leaf spring 1; 132, pressure plate 1; 21, rotating shaft; 211, motor 2; 212, eccentric roller; 22, pressure block 1; 221, movable chamber 1; 222, slide bar 2; 2 3. Press block 2; 231. Movable bin 2; 232. Partition plate; 241. Movable bin 3; 242. Screw rod 2; 243. Motor 3; 244. Gear 1; 245. Gear screw sleeve; 25. Air groove; 251. Intercepting grid; 252. Movable groove 1; 253. Movable groove 2; 254. Locking tooth 1; 255. Slide; 31. Moving frame; 311. Rack 1; 312. Spring 2; 313. Locking tooth 2; 314. Spring 3; 321. Gear 2; 322. Gear 3; 33. Grid scraper; 331. Rack 2. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Reference Figure 1 - Fig.10As shown, an adjustable cotton pressing device for nitrocellulose production comprises a base 1 and an upper cover 12, the upper cover 12 is movably mounted above the base 1, a sliding sleeve 121 and a sliding sleeve 122 are slidably mounted on the side walls on both sides of the upper cover 12, a rotating shaft 21 is rotatably mounted between the sliding sleeve 121 and the sliding sleeve 122, a motor 211 is fixedly mounted on the side wall of the sliding sleeve 122, an output shaft of the motor 211 is fixedly connected to the rotating shaft 21, two pressing blocks 122 and a pressing block 23 are movably mounted between the base 1 and the upper cover 12, the pressing block 23 is located between the two pressing blocks 12, a cotton pressing cavity 13 is arranged inside the base 1, and the cotton pressing cavity A pressure plate 132 is slidably installed inside 13, a leaf spring 131 is provided between the bottom of the pressure plate 132 and the cotton pressing chamber 13, the pressure block 122 and the pressure block 23 are both located above the pressure plate 132, and the tops of the two pressure blocks 22 are integrally formed with a movable bin 221, and three evenly distributed eccentric rollers 212 are fixedly installed on the side walls of the rotating shaft 21, wherein two eccentric rollers 212 are rotatably installed inside the two movable bins 221, respectively, a sliding hole 128 is opened on the top of the upper cover 12, a sliding rod 222 is fixedly installed on the top of the movable bin 221 by threads, and the sliding rod 222 is slidably installed inside the sliding hole 128.

[0031] The working principle of the pressing block 22 is as follows: when the upper cover 12 moves downward, the motor 211 is started, the rotating shaft 21 drives the eccentric roller 212 to rotate, and the eccentric roller 212 drives the movable bin 221 to move back and forth longitudinally, so that the two pressing blocks 22 continuously squeeze the nitrocellulose. When the two pressing blocks are continuously squeezed downward, the sliding rod 222 moves downward with the pressing block 22. When the top ends of the two sliding rods 222 simultaneously hit the top of the upper cover 12, the motor 211 is turned off, and at this time, the bottom ends of the two pressing blocks 22 are on the same horizontal plane.

[0032] like Figure 1 , Figure 2 and Figure 6 As shown, a slide bar 111 is integrally formed on the side wall of the base 1, a slide hole 126 is provided on the side wall of the slide sleeve 122, and the slide hole 126 is slidably installed on the outer side of the slide bar 111, a motor 113 is fixedly installed on the bottom of the base 1, and the output shaft of the motor 113 is fixedly connected with a screw 112, a screw hole 125 is provided on the side wall of the slide sleeve 121, and the screw 112 is rotatably installed inside the screw hole 125, a slide groove 123 is provided on the side walls on both sides of the upper cover 12, and a slide groove 127 is integrally formed on the side walls of the slide sleeve 121 and the slide sleeve 2 122, and the slide groove 127 is slidably installed inside the slide groove 123, and a spring plate 129 is integrally formed on the side walls on both sides of the upper cover 12, and a spring 124 is provided between the two spring plates 129 and the side walls of the slide sleeve 121 and the slide sleeve 2 122.

[0033] The working principle of the sliding sleeve 121 and the sliding sleeve 2 122 is as follows: when the nitrocellulose to be pressed is evenly placed on the top of the pressing plate 132, the motor 113 is started, the screw rod 112 rotates, and is threadedly matched with the screw hole 125, so that the sliding sleeve 121 slides downward, and the sliding sleeve 2 122 is driven to slide along the sliding rod 111 through the rotating shaft 21. When the sliding sleeve 121 and the sliding sleeve 2 122 slide downward, the upper cover 12 follows the sliding sleeve 121 and the sliding sleeve 2 122 to slide downward through the spring 124. When the bottom of the upper cover 12 contacts the top of the base 1, the motor 113 continues to start, so that the sliding sleeve 121 and the sliding sleeve 2 122 slide downward along the sliding groove 123.

[0034] like Figure 2 , Fig. 9 and Fig.10 As shown, the top of the pressing block 23 is integrally formed with a movable bin 231, and a movable bin 3 241 is slidably installed inside the movable bin 231, one of the eccentric rollers 212 is rotatably installed inside the movable bin 3 241, and a partition 232 is integrally formed inside the pressing block 23, and a motor 3 243 is fixedly installed inside the partition 232, and a gear 1 244 is fixedly connected to the output shaft of the motor 3 243, and a screw 242 is integrally formed at the bottom of the movable bin 3 241, and a gear screw sleeve 245 is rotatably installed on the outer side of the screw 242, and the gear screw sleeve 245 is rotatably installed inside the partition 232, and the gear 1 244 and the gear screw sleeve 245 are meshed.

[0035] Among them, the working principle of the movable warehouse three 241 is: when the motor two 211 drives the rotating shaft 21 to rotate, the movable warehouse three 241 is located at the bottom of the movable warehouse two 231, so that the movable warehouse three 241 drives the pressing block two 23 to continuously extrude the nitrocellulose; when the motor two 211 is turned off, the motor three 243 is started, the gear one 244 and the gear screw sleeve 245 are meshed with each other, and the screw two 242 and the gear screw sleeve 245 are threadedly matched, so that the movable warehouse three 241 moves to the top of the movable warehouse two 231; when the movable warehouse three 241 moves to the top of the movable warehouse two 231, the bottoms of the pressing blocks one 23 and the pressing blocks two 22 are on the same horizontal plane.

[0036] like Figure 3-Figure 5 and Figure 7-Figure 9As shown, the side walls of the two pressing blocks 1 22 are provided with air grooves 25, the side walls on both sides of the pressing block 23 are provided with the same air grooves 25, the interior of the air groove 25 is integrally formed with an intercepting grid 251, the interior of the air groove 25 is slidably installed with a grid scraper 33, the side wall of the grid scraper 33 is integrally formed with a rack 2 331, the interiors of the pressing blocks 1 22 and 23 are integrally formed with a slide 255, the rack 2 331 is slidably installed on the top of the slide 255, the side walls of the two pressing blocks 1 22 are provided with movable grooves 1 252, the side walls of the pressing block 23 are provided with the same movable grooves 1 252, the interior of each movable groove 1 252 is slidably installed with a movable frame 31, and a spring 2 312 is provided between the movable groove 1 252 and the movable frame 31.

[0037] like Figure 3 and Figure 8 As shown, the bottom of the movable frame 31 is integrally formed with a rack 1 311, the side wall of the slide 255 is rotatably mounted with a gear 2 321, the gear 2 321 is meshed with the rack 1 311, the side wall of the gear 2 321 is integrally formed with a gear 3 322, the gear 3 322 is meshed with the rack 2 331.

[0038] Among them, the working principle of the grid scraper 33 is as follows: when the movable frame 31 moves downward, the rack 1 311 and the gear 2 321 mesh with each other, so that the gear 2 321 rotates, and the gear 2 321 drives the gear 3 322 to rotate, so that the gear 3 322 and the rack 2 331 mesh with each other and drive the rack 2 331 to move, and the rack 2 331 drives the grid scraper 33 to move. After the grid scraper 33 moves out of the air groove 25, the gear 3 322 and the rack 2 331 cancel the meshing. When the grid scraper 33 is resisted and shrinks, the rack 2 331 and the gear 3 322 continue to mesh, so that the gear 3 322 reverses, and the gear 3 322 drives the gear 2 321 to reverse, and the gear 2 321 and the rack 1 311 mesh with each other, and the rack 1 311 drives the movable frame 31 to move upward.

[0039] Further references Figure 3 To explain, the bottom of the pressing block 2 23 squeezes and contacts the grid scraper 33 installed on the pressing block 1 22, and the bottom of the pressing block 1 22 squeezes and contacts the grid scraper 33 installed on the pressing block 2 23. Through the contact between the pressing block 1 22 and the pressing block 2 23 on the grid scraper 33, the nitrocellulose cotton wool on the side wall of the grid scraper 33 is effectively removed.

[0040] like Figure 5 and Figure 8As shown, a locking tooth 2 313 is slidably installed on the side wall of the movable frame 31, a spring 314 is provided between the locking tooth 2 313 and the movable frame 31, and a movable groove 2 253 is provided on the side walls of the two pressing blocks 22, and the side walls on both sides of the pressing block 23 are provided with the same movable groove 253. The movable groove 1 252 and the movable groove 253 are connected to each other, and a plurality of locking teeth 1 254 are integrally formed at the bottom of the movable groove 253, and the locking teeth 1 254 and the locking teeth 2 313 are meshed with each other.

[0041] The working principle of the movable frame 31 is as follows: in the initial state, the second spring 312 contacts the bottom of the movable frame 31, so that the movable frame 31 is located at the top of the movable groove 1 252; when the movable frame 31 follows the second pressure block 23 to move downward, the movable frame 31 drives the second locking tooth 313 to move downward; when the second locking tooth 313 following the movement of the second pressure block 23 and the second locking tooth 313 following the movement of the first pressure block 22 contact each other, the two second locking teeth 313 both squeeze the third spring 314, and the second locking tooth 313 contracts; when the second locking tooth 313 contacts the first locking tooth 254, the second locking tooth 313 squeezes the third spring 314, and the locking tooth 313 is locked. Tooth 2 313 contracts, and when the movable frame 31 moves upward following the pressure block 23, the movable frame 31 drives the locking tooth 2 313 to move upward, and the locking tooth 2 313 and the locking tooth 1 254 are meshed, so that the movable frame 31 moves downward, the rack 1 311 and the gear 2 321 are meshed with each other, and the grid scraper 33 moves out of the air groove 25. When the grid scraper 33 contracts, the gear 2 321 drives the rack 1 311 to move upward, so that the locking tooth 2 313 contracts. When the locking tooth 2 313 is away from the locking tooth 1 254, the spring 2 312 contacts the movable frame 31, so that the movable frame 31 is located at the top of the movable groove 1 252.

[0042] Further references Figure 8 To explain, when the two locking teeth 213 collide with each other, the top of the movable groove 1 252 collide with the upper locking tooth 213 of the two locking teeth 213, so that the upper locking tooth 213 squeezes the lower locking tooth 213, and at this time, the movable frame 31 connected to the lower locking tooth 213 drives gear 2 321 and gear 3 322 to rotate, and gear 3 322 drives the grid scraper 33 to move. When the grid scraper 33 collide with the side wall of the pressure block 1 22, gear 2 321 and gear 3 322 are locked, so that the movable frame 31 is locked, and the lower locking tooth 213 and the upper locking tooth 213 both squeeze the spring 314, and the locking tooth 213 contracts.

[0043] The specific working principle and use method of the present invention are explained in detail below: after the nitrocellulose to be pressed is evenly placed on the top of the pressing plate 132, the motor 113 and the motor 211 are started, the screw 112 drives the sleeve 121 and the sleeve 2 122 to move downward, the sleeve 121 and the sleeve 2 122 drive the upper cover 12 to move downward through the spring 124, the sleeve 121 and the sleeve 2 122 drive the rotating shaft 21 to move, the motor 211 drives the rotating shaft 21, so that the rotating shaft 21 drives the eccentric roller 212 to rotate, and the eccentric roller 212 drives the pressing block 1 22 and the pressing block 23 to be squeezed through the movable bin 1 221 and the movable bin 3 241, and when the upper cover 12 contacts the base 1, the screw 112 The rotating shaft 21 is driven to continue to move downward, so that the pressing block 1 22 and the pressing block 2 23 can squeeze the pressing plate 1 32 while continuously squeezing the nitrocellulose, so that the pressing plate 1 132 moves downward. When the rotating shaft 21 moves downward, the two pressing blocks 1 22 respectively drive the two sliding bars 222 to move downward. When the top ends of the two sliding bars 222 touch the top of the upper cover 12, the motor 2 211 is turned off, the motor 3 243 is started, and the movable bin 3 241 moves to the top of the movable bin 2 231, so that the bottoms of the pressing blocks 1 22 and the pressing blocks 2 23 are kept in the same horizontal plane, and then the screw 1 112 is driven by the motor 1 113, so that the sliding sleeve 1 121 and the sliding sleeve 2 122 drive the pressing block 2 23 and the two pressing blocks 1 22 through the rotating shaft 21 to press the cotton into shape.

[0044] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable cotton pressing device for nitrocellulose production, comprising a base (1) and an upper cover (12), characterized in that: The upper cover (12) is movably mounted above the base (1); a sliding sleeve (121) and a sliding sleeve (122) are slidably mounted on the side walls on both sides of the upper cover (12); a rotating shaft (21) is rotatably mounted between the sliding sleeve (121) and the sliding sleeve (122); a motor (211) is fixedly mounted on the side wall of the sliding sleeve (122); an output shaft of the motor (211) and the rotating shaft (21) are fixedly connected; two pressing blocks (22) and a pressing block (23) are movably mounted between the base (1) and the upper cover (12); the pressing block (23) is located between the two pressing blocks (22); a cotton pressing cavity (13) is provided inside the base (1); a pressing plate (1) is slidably mounted inside the cotton pressing cavity (13) (132), a leaf spring (131) is provided between the bottom of the pressure plate (132) and the cotton pressing chamber (13), the pressure block (22) and the pressure block (23) are both located above the pressure plate (132), the tops of the two pressure blocks (22) are both integrally formed with a movable bin (221), the side walls of the rotating shaft (21) are fixedly mounted with three evenly distributed eccentric rollers (212), wherein two of the eccentric rollers (212) are respectively rotatably mounted inside the two movable bins (221), the top of the upper cover (12) is provided with a sliding hole (128), the top of the movable bin (221) is fixedly mounted with a sliding rod (222) by means of threads, and the sliding rod (222) is slidably mounted inside the sliding hole (128).

2. The adjustable cotton pressing device for nitrocellulose production according to claim 1, characterized in that: The side wall of the base (1) is integrally formed with a sliding rod (111); the side wall of the sliding sleeve (122) is provided with a sliding hole (126); the sliding hole (126) is slidably mounted on the outside of the sliding rod (111); a motor (113) is fixedly mounted on the bottom of the base (1); the output shaft of the motor (113) is fixedly connected with a screw (112); the side wall of the sliding sleeve (121) is provided with a screw hole (125); the screw (112) is rotatably mounted inside the screw hole (125).

3. The adjustable cotton pressing device for nitrocellulose production according to claim 1, characterized in that: The side walls on both sides of the upper cover (12) are provided with a slide groove 1 (123), the side walls of the slide sleeve 1 (121) and the slide sleeve 2 (122) are integrally formed with a slide groove 2 (127), the slide groove 2 (127) is slidably installed inside the slide groove 1 (123), the side walls on both sides of the upper cover (12) are integrally formed with a spring plate (129), and a spring 1 (124) is provided between the two spring plates (129) and the side walls of the slide sleeve 1 (121) and the slide sleeve 2 (122).

4. The adjustable cotton pressing device for nitrocellulose production according to claim 1, characterized in that: The top of the pressing block 2 (23) is integrally formed with a movable bin 2 (231), and a movable bin 3 (241) is slidably installed inside the movable bin 2 (231), one of the eccentric rollers (212) is rotatably installed inside the movable bin 3 (241), a partition (232) is integrally formed inside the pressing block 2 (23), a motor 3 (243) is fixedly installed inside the partition (232), and a gear 1 (244) is fixedly connected to the output shaft of the motor 3 (243), and a screw rod 2 (242) is integrally formed at the bottom of the movable bin 3 (241), and a gear screw sleeve (245) is rotatably installed on the outer side of the screw rod 2 (242), and the gear screw sleeve (245) is rotatably installed inside the partition (232), and the gear 1 (244) and the gear screw sleeve (245) are meshed.

5. The adjustable cotton pressing device for nitrocellulose production according to claim 1, characterized in that: The side walls of the two pressing blocks (22) are provided with air grooves (25), and the side walls on both sides of the pressing block (23) are provided with the same air grooves (25), and an intercepting grid (251) is integrally formed inside the air groove (25), and a grid scraper (33) is slidably installed inside the air groove (25), and a rack (331) is integrally formed on the side wall of the grid scraper (33), and a slide (255) is integrally formed inside the pressing block (22) and the pressing block (23), and the rack (331) is slidably installed on the top of the slide (255).

6. The adjustable cotton pressing device for nitrocellulose production according to claim 5, characterized in that: The side walls of the two pressing blocks (22) are provided with movable grooves (252), and the side walls on both sides of the pressing block (23) are provided with the same movable grooves (252). A movable frame (31) is slidably mounted inside each movable groove (252), and a spring (312) is provided between the movable groove (252) and the movable frame (31).

7. The adjustable cotton pressing device for nitrocellulose production according to claim 6, characterized in that: The bottom of the movable frame (31) is integrally formed with a rack 1 (311), the side wall of the slide (255) is rotatably mounted with a gear 2 (321), the gear 2 (321) and the rack 1 (311) are meshed, the side wall of the gear 2 (321) is integrally formed with a gear 3 (322), the gear 3 (322) and the rack 2 (331) are meshed.

8. The adjustable cotton pressing device for nitrocellulose production according to claim 6, characterized in that: The side wall of the movable frame (31) is slidably mounted with a second locking tooth (313), a third spring (314) is arranged between the second locking tooth (313) and the movable frame (31), the side walls of the two pressing blocks (22) are provided with a second movable groove (253), the side walls on both sides of the pressing block (23) are provided with the same second movable groove (253), the first movable groove (252) and the second movable groove (253) are connected to each other, the bottom of the second movable groove (253) is integrally formed with a plurality of first locking teeth (254), the first locking teeth (254) and the second locking teeth (313) are meshed with each other.

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