A packaging paper calender finishing device

Abstract

The application provides a packaging paper calendering finishing device and relates to the technical field of packaging paper calendering. The device comprises a base, a fixing frame arranged on the top rear side of the base, a material roller arranged above the fixing frame, a limiting slide rod and a second compression spring combined with a limiting sleeve to form an elastic pressing structure, a second compression spring continuously pressing the limiting block into the limiting groove, and a first compression spring arranged between the placing ring and the supporting ring. The first compression spring elastically presses the end surface of the paper roll, eliminates the assembly gap between the paper roll and the limiting structure, clamps the paper roll from both ends, effectively avoids the left and right movement of the paper roll during the operation of the material roller, ensures the stability of the calendering material, and solves the problem that the paper roll is easily moved left and right along the axial direction of the material roller under the action of the paper tension or the centrifugal force of the roller body rotation during the high-speed calendering of the device, the packaging paper is deviated, and the edge calendering is flawed.

Description

Technical Field

[0001] This invention relates to the field of packaging paper calendering technology, and in particular to a packaging paper calendering and finishing device. Background Technology

[0002] Calendering is a core surface finishing process for packaging paper, located after the paper drying and coating stages. It involves the combined action of heat, pressure, and friction to reshape the paper's surface microstructure, unify thickness, and improve gloss and smoothness. It is an essential post-processing technique for gift boxes, color boxes, tote bags, wine bags, and cosmetic packaging paper, and is divided into two categories: in-machine online calendering and out-of-machine calendering. The paper's moisture content is controlled within the optimal range of 8% to 10% before being fed into the pressure zone formed by steel rolls and elastic rolls. The high-temperature steel rolls soften the paper fibers and surface coating, while high-pressure extrusion between the rolls fills the unevenness of the paper surface and compacts the fiber pores. The coating fillers and pearlescent powders are arranged in parallel, resulting in uniform mirror reflection of light and forming a bright and smooth surface. Simultaneously, it corrects thickness differences across the width of the paper, improving dimensional stability.

[0003] Existing packaging paper calendering and finishing equipment often uses an integrated fixed support structure with bolts to directly lock the rollers. The disassembly and assembly of the positioning structure at both ends of the rollers is cumbersome. When changing to different specifications of packaging paper rolls, multiple sets of fastening bolts need to be removed one by one, which is time-consuming and labor-intensive. When the equipment is calendering at high speed, the paper roll is easily moved left and right along the roller axis due to the tension of the paper or the centrifugal force of the roller rotation, causing the packaging paper to deviate and resulting in defects in the edge calendering. When the paper roll is guided and conveyed by the guide roller, the paper is prone to slight deviation due to uneven conveying tension or roller rotation friction deviation, resulting in local stacking and loosening, which in turn forms paper wrinkles and bulges. When processing packaging paper of different thicknesses, if the calendering gap is too narrow, it will easily squeeze the thin paper and cause the paper surface to crack. If the gap is too wide, it will not be able to effectively compact and polish the thick paper, resulting in substandard calendering smoothness and gloss. Summary of the Invention

[0004] This invention relates to a packaging paper calendering and finishing device. The limiting block is equipped with a limiting slide rod and a second compression spring combined with a limiting sleeve to form an elastic pressing structure. The second compression spring continuously pushes the limiting block into the limiting groove, preventing loosening or limiting failure even under running vibration. Furthermore, a first compression spring is set between the placement ring and the support ring. Relying on the elastic pressing of the first compression spring against the end face of the paper roll, the assembly gap between the paper roll and the limiting structure is eliminated, and the paper roll is clamped from both ends, effectively preventing the paper roll from moving left and right during the operation of the material roller and ensuring the stability of the calendering process.

[0005] This invention provides a calendering and finishing device for packaging paper, specifically comprising: a base, a fixed frame on the rear top of the base; a material roller above the fixed frame; two positioning elements on the material roller, the two positioning elements being symmetrically distributed from left to right; adjusting sleeves on opposite outer sides of the two positioning elements; a first mounting frame on the front top of the base; an adjusting seat between the first mounting frames; a scraper on the adjusting seat; a second mounting frame on the top of the base, the second mounting frame being located in front of the first mounting frame; an adjusting frame between the second mounting frames; two lower pressure rollers below the adjusting frame, the two lower pressure rollers being parallel to each other; connecting sleeves on the left and right sides of the lower pressure rollers; The top of the fixed frame is provided with two support frames, which are symmetrically distributed and have placement slots. The material roller is provided with two placement rings, and the placement rings are connected to the support frame through placement grooves. One side of the placement ring is provided with a threaded sleeve, and the threaded sleeve is provided with a locking ring. The threaded sleeve is fitted onto the material roller and is locked and controlled by the locking ring.

[0006] Furthermore, the positioning component is provided with a bearing ring, and the positioning component is rotatably connected to the material roller through the bearing ring. The inner circumferential surface of the positioning component is provided with three limiting grooves, and the three limiting grooves are distributed in a ring array.

[0007] Furthermore, the adjusting sleeve is provided with a support ring on one side, and a first compression spring is provided on the other side of the support ring. The first compression spring is supported between the placement ring and the support ring. The adjusting sleeve is provided with three mounting grooves, and a limiting sleeve is provided on the mounting groove. A limiting block is slidably installed in the mounting groove. A limiting slide rod is provided on one side of the limiting block, and a second compression spring is fitted on the limiting slide rod. The limiting slide rod is slidably inserted into the limiting sleeve, and the second compression spring is supported between the limiting sleeve and the limiting block. The limiting block is engaged with the limiting groove of the positioning component.

[0008] Furthermore, a guide roller is rotatably mounted on the first mounting frame, and a scraper plate is located above the guide roller. A limiting rod is provided on the first mounting frame, and the limiting rod is located above the guide roller. A reciprocating screw is rotatably mounted on the first mounting frame. A first motor is provided on one side of the first mounting frame, and the shaft of the first motor is connected to the reciprocating screw.

[0009] Furthermore, the rear end of the adjusting seat is provided with a guide sleeve, and the guide sleeve is slidably fitted onto the limiting round rod. The front end of the adjusting seat is provided with a limiting sleeve, and the inner circumferential surface of the limiting sleeve is provided with two convex shafts, which are symmetrically distributed. The limiting sleeve is slidably fitted onto the reciprocating screw, and the convex shafts are meshed with the reciprocating screw. The bottom of the adjusting seat is provided with a limiting sleeve frame, and the scraper plate is located inside the limiting sleeve frame. A limiting through groove is provided above the limiting sleeve frame.

[0010] Furthermore, the top of the scraper plate is provided with two limiting posts, which are distributed vertically and parallelly. A third compression spring is fitted on the limiting post, and a limiting slider is provided at the top of the limiting post. The limiting post is slidably inserted into the limiting sleeve, and the third compression spring is supported between the scraper plate and the limiting sleeve. The limiting slider is slidably connected to the limiting through groove.

[0011] Furthermore, two support rollers are rotatably mounted between the second mounting frames, and the two support rollers are distributed in a parallel manner. The pressure roller is located above the support rollers. A driven pulley is provided at the end of the rotating shaft on one side of the support roller. A support top frame is provided between the tops of the second mounting frames. A second motor is provided below the second mounting frames, and the second motor is fixedly connected to the base. The second motor has a drive pulley at the end of its shaft, a belt on the drive pulley, and the drive pulley is connected to two driven pulleys via the belt.

[0012] Furthermore, the top of the adjustment frame is provided with two cylinders, which are distributed symmetrically on the left and right sides and are fixedly installed on the support top frame. The left and right ends of the adjustment frame are provided with limiting side frames, the bottom of the limiting side frames are provided with two adjustment grooves, and the two limiting side frames are provided with connecting sleeves on opposite outer sides.

[0013] Furthermore, the lower pressure roller is provided with connecting shafts at both ends, and rotating sleeves are fitted on the connecting shafts, with the rotating sleeves being tumbledly connected to the connecting sleeve frame.

[0014] Furthermore, the top of the connecting sleeve is provided with a connecting block, and the connecting block is rotatably connected to the connecting sleeve frame through a pin. A limit rod is slidably inserted into the bottom of the connecting sleeve. A support sleeve is provided at the bottom of the limit rod, and the support sleeve is rotatably connected to the connecting shaft. A fourth compression spring is fitted on the limit rod, and the fourth compression spring is supported between the connecting sleeve and the support sleeve.

[0015] This invention provides a packaging paper calendering and finishing device, which has the following beneficial effects: In this invention, a support frame with placement slots is symmetrically arranged on the top of the fixed frame. The material roller is initially positioned and supported by the placement rings at both ends directly engaging the placement slots, eliminating the need for complex alignment and assembly. A single person can place the material roller. At the same time, the placement rings are equipped with a threaded sleeve and a locking ring combination locking structure. The threaded sleeve can slide on the material roller to adjust the spacing between the placement rings to adapt to paper rolls of different widths. After adjustment, rotating the locking ring can quickly lock the threaded sleeve. There is no need to disassemble or assemble a large number of bolts. During disassembly, only the locking ring needs to be loosened to directly remove the material roller from the placement slot of the support frame, greatly simplifying the material roller assembly and disassembly steps. The assembly and disassembly operation is simple and quick.

[0016] Furthermore, in this invention, the positioning component has three limiting grooves arranged in an annular array within its inner ring. The adjusting sleeve is equipped with three sets of retractable limiting blocks, which simultaneously engage with the limiting grooves at three points to form an annular multi-point limiting mechanism. At the same time, the limiting blocks are equipped with a limiting slide rod and a second compression spring combined with the limiting sleeve to form an elastic pressing structure. The second compression spring continuously pushes the limiting blocks into the limiting groove, preventing loosening or limiting failure even under vibration. In addition, a first compression spring is set between the placement ring and the support ring. The first compression spring elastically presses against the end face of the paper roll, eliminating the assembly gap between the paper roll and the limiting structure, clamping the paper roll from both ends, effectively preventing the paper roll from shifting left and right during the operation of the material roller, and ensuring the stability of the calender feeding.

[0017] Furthermore, this invention employs a first motor to drive a reciprocating lead screw to rotate, which, in conjunction with a limiting round rod, provides limiting and guiding action on the adjusting seat. Through the meshing transmission between the reciprocating lead screw and the cam shaft, the adjusting seat and the scraper plate at the bottom are driven to make stable left-right reciprocating linear motions above the guide roller. This allows for all-round reciprocating scraping and smoothing of the packaging paper surface during the conveying process, real-time relief of local stress generated during paper conveying, and flattening of loose and stacked parts of the paper. This fundamentally prevents the generation of paper wrinkles and wavy edges, ensuring that the paper surface is flat and regular before entering the calendering process.

[0018] Furthermore, in this invention, the second motor drives the two sets of support rollers to rotate synchronously through the linkage of the active pulley, belt, and driven pulley, ensuring uniform and stable conveying power and providing uniform feeding conditions for calendering operations. At the same time, a calendering structure with support rollers and floating double lower pressure rollers is adopted. The basic calendering gap between the lower pressure rollers and support rollers can be precisely controlled by the cylinder-driven adjustment frame. The lower pressure rollers are connected to the connecting sleeve frame by the connecting shafts and rotating sleeves at both ends, and a floating buffer structure is formed by the connecting sleeve, limit rod, and fourth compression spring, giving the lower pressure rollers a vertical adaptive floating function. During the calendering process, the pressing gap can be automatically finely adjusted according to the local thickness difference of the paper to achieve flexible calendering. This can fully compact and flatten thick paper while avoiding the hard squeezing and damage of thin paper, effectively solving the problem of uneven calendering caused by paper thickness deviation, and greatly improving the calendering uniformity and finished product quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application is shown; Figure 2 A schematic diagram of the fixing frame, material roller, positioning element and adjusting sleeve of this application is shown; Figure 3 A schematic diagram showing the disassembled state of some of the material rollers, positioning components, and adjusting sleeves of this application is shown; Figure 4 A schematic diagram showing the disassembled state of the adjusting sleeve and the limiting block of this application is shown; Figure 5 A schematic diagram of the first mounting bracket, adjusting seat, and scraper plate of this application is shown; Figure 6 A schematic diagram showing the adjustment seat and scraper plate in their disassembled state is shown in this application; Figure 7 A schematic diagram of the second mounting bracket, adjusting bracket, lower pressure roller, and connecting sleeve of this application is shown; Figure 8 A schematic diagram of the adjusting frame, lower pressure roller, and connecting sleeve of this application is shown; Figure 9 A schematic diagram showing the partial disassembled state of the pressure roller, the limiting side frame, and the connecting sleeve of this application is shown.

[0022] List of reference numerals in the attached diagram: 1. Base; 2. Fixing frame; 201. Support frame; 202. Placement groove; 3. Material roller; 301. Placement ring; 302. Threaded sleeve; 303. Locking ring; 4. Positioning component; 401. Bearing ring; 402. Limiting groove; 5. Adjusting sleeve; 501. Support ring; 502. First compression spring; 503. Mounting groove; 504. Limiting sleeve; 505. Limiting block; 5051. Limiting slide rod; 5052. Second compression spring; 6. First mounting frame; 601. Guide roller; 602. Limiting round rod; 603. Reciprocating screw; 604. First motor; 7. Adjusting seat; 701. Guide slide sleeve; 702. Limiting sleeve; 703. Convex shaft; 70 4. Limiting sleeve; 705. Limiting through groove; 8. Scraper; 801. Limiting post; 802. Third compression spring; 803. Limiting slider; 9. Second mounting bracket; 901. Support roller; 902. Driven pulley; 903. Support top frame; 904. Second motor; 9041. Driving pulley; 9042. Belt; 10. Adjusting frame; 1001. Cylinder; 1002. Limiting side frame; 1003. Adjusting groove; 1004. Connecting sleeve; 11. Lower pressure roller; 1101. Connecting shaft; 1102. Rotating sleeve; 12. Connecting sleeve; 1201. Connecting block; 1202. Limiting rod; 1203. Support sleeve; 1204. Fourth compression spring. Detailed Implementation

[0023] Example 1: Please refer to Figures 1 to 9 : This invention proposes a calendering and finishing device for packaging paper, comprising: a base 1, a fixing frame 2 on the rear side of the top of the base 1; a material roller 3 above the fixing frame 2; two positioning parts 4 on the material roller 3, which are symmetrically distributed from left to right; adjusting sleeves 5 on opposite outer sides of the two positioning parts 4; a first mounting frame 6 on the front side of the top of the base 1; an adjusting seat 7 between the first mounting frames 6; a scraper 8 on the adjusting seat 7; a second mounting frame 9 on the top of the base 1, which is located in front of the first mounting frame 6; an adjusting frame 10 between the second mounting frames 9; two lower pressure rollers 11 below the adjusting frame 10, which are parallel to each other; and connecting sleeves 12 on the left and right sides of the lower pressure rollers 11. The top of the fixed frame 2 is provided with two support frames 201, and the two support frames 201 are distributed symmetrically. The support frames 201 are provided with placement slots 202. The material roller 3 is provided with two placement rings 301, and the placement rings 301 are connected to the support frame 201 through placement grooves 202. A threaded sleeve 302 is provided on one side of the placement ring 301, and a locking ring 303 is provided on the threaded sleeve 302. The threaded sleeve 302 is fitted onto the material roller 3 and locked by the locking ring 303. In this invention, the support frame 201 with placement grooves 202 is symmetrically arranged on the top of the fixing frame 2. The material roller 3 is initially fixed by the placement rings 301 at both ends directly engaging into the placement grooves 202. The support structure eliminates the need for complex alignment and assembly, allowing a single person to place the material roller 3. Simultaneously, the placement ring 301, along with the threaded sleeve 302 and locking ring 303, forms a locking mechanism. The threaded sleeve 302 can slide on the material roller 3 to adjust the spacing of the placement ring 301 to accommodate paper rolls of different widths. Once adjusted, rotating the locking ring 303 quickly locks the threaded sleeve 302, eliminating the need to disassemble numerous bolts. During disassembly, simply loosening the locking ring 303 allows the material roller 3 to be directly removed from the placement slot 202 of the support frame 201.

[0024] In this embodiment, as Figures 2 to 4 As shown, the positioning component 4 is provided with a bearing ring 401, and the positioning component 4 is rotatably connected to the material roller 3 through the bearing ring 401. The inner circumferential surface of the positioning component 4 is provided with three limiting grooves 402, and the three limiting grooves 402 are distributed in a ring array. The adjusting sleeve 5 has a support ring 501 on one side, and a first compression spring 502 on one side of the support ring 501. The first compression spring 502 is supported between the placement ring 301 and the support ring 501. The adjusting sleeve 5 has three mounting grooves 503. The mounting grooves 503 are equipped with limit sleeves 504. Limiting blocks 505 are slidably installed in the mounting grooves 503. A limiting slide rod 5051 is provided on one side of the limiting block 505. A second compression spring 5052 is fitted on the limiting slide rod 5051. The limiting slide rod 5051 is slidably inserted into the limiting sleeve 504, and the second compression spring 5052 is supported between the limiting sleeve 504 and the limiting block 505. The limiting block 505 is engaged with the limiting groove 402 of the positioning member 4. In this invention, three limiting grooves 402 are arranged in a ring array inside the positioning member 4. The adjusting sleeve 5 is equipped with three sets of retractable limiting blocks 505, which are simultaneously engaged with the limiting grooves 402 at three points to form a ring. The device features a multi-point limiting mechanism. The limiting block 505 is equipped with a limiting slide bar 5051 and a second compression spring 5052, which, together with the limiting sleeve 504, form an elastic pressing structure. The second compression spring 5052 continuously pushes the limiting block 505 into the limiting groove 402, preventing loosening or limiting failure even under vibration. Furthermore, a first compression spring 502 is provided between the placement ring 301 and the support ring 501. The first compression spring 502 elastically presses against the end face of the paper roll, eliminating the assembly gap between the paper roll and the limiting structure, and clamping the paper roll from both ends.

[0025] In this embodiment, as Figure 5 and Figure 6 As shown, a guide roller 601 is rotatably mounted on the first mounting frame 6, and a scraper plate 8 is located above the guide roller 601. A limiting round rod 602 is provided on the first mounting frame 6, and the limiting round rod 602 is located above the guide roller 601. A reciprocating screw 603 is rotatably mounted on the first mounting frame 6. A first motor 604 is provided on one side of the first mounting frame 6, and the rotating shaft of the first motor 604 is connected to the reciprocating screw 603. The rear end of the adjusting seat 7 is provided with a guide sleeve 701, and the guide sleeve 701 is slidably fitted on the limiting round rod 602. The front end of the adjusting seat 7 is provided with a limiting sleeve 702. The inner circumferential surface of the limiting sleeve 702 is provided with two protruding shafts 703, and the two protruding shafts 703 are symmetrically distributed. The limiting sleeve 702 is slidably fitted on the reciprocating screw 603, and the protruding shafts 703 are meshed with the reciprocating screw 603. The bottom of the adjusting seat 7 is provided with a limiting sleeve frame 704, and the scraper plate 8 is located inside the limiting sleeve frame 704. A limiting through groove 705 is provided above the limiting sleeve frame 704. The top of the scraper plate 8 is provided with two limiting posts 801, which are vertically parallel. A third compression spring 802 is fitted on the limiting post 801. A limiting slider 803 is provided at the top of the limiting post 801. The limiting post 801 is slidably inserted into the limiting sleeve 704, and the third compression spring 802 is supported between the scraper plate 8 and the limiting sleeve 704. The limiting slider 803 is slidably connected to the limiting through groove 705. In this invention, the first motor 604 drives the reciprocating screw 603 to rotate, which, together with the limiting round rod 602, limits and guides the adjusting seat 7. Through the meshing transmission of the reciprocating screw 603 and the cam shaft 703, the adjusting seat 7 and the scraper plate 8 at the bottom are driven to make a stable left and right reciprocating linear motion above the guide roller 601. This can perform all-round reciprocating scraping and smoothing of the packaging paper surface during the conveying process, and relieve the local stress generated during the paper conveying process in real time, and flatten the loose and stacked parts of the paper.

[0026] Example 2, based on Example 1, such as Figures 7 to 9 As shown, two support rollers 901 are rotatably mounted between the second mounting frames 9, and the two support rollers 901 are distributed in a parallel manner. The lower pressure roller 11 is located above the support rollers 901. A driven pulley 902 is provided at the end of the rotating shaft on one side of the support roller 901. A support top frame 903 is provided between the tops of the second mounting frames 9. A second motor 904 is provided below the second mounting frames 9, and the second motor 904 is fixedly connected to the base 1. The second motor 904 has a drive pulley 9041 at the end of its shaft, a belt 9042 on the drive pulley 9041, and the drive pulley 9041 is connected to two driven pulleys 902 through the belt 9042. The top of the adjusting frame 10 is provided with two cylinders 1001, which are distributed symmetrically on the left and right sides. The cylinders 1001 are fixedly installed on the supporting top frame 903. The left and right ends of the adjusting frame 10 are provided with limiting side frames 1002. The bottom of the limiting side frames 1002 is provided with two adjusting grooves 1003. The two limiting side frames 1002 are provided with connecting sleeves 1004 on opposite sides. The lower pressure roller 11 has connecting shafts 1101 at both ends, and rotating sleeves 1102 are fitted on the connecting shafts 1101. The rotating sleeves 1102 are tumblingly connected to the connecting sleeve frame 1004. A connecting block 1201 is provided at the top of the connecting sleeve 12, and the connecting block 1201 is rotatably connected to the connecting sleeve frame 1004 via a pin. A limiting rod 1202 is slidably inserted at the bottom of the connecting sleeve 12, and a support sleeve 1203 is provided at the bottom end of the limiting rod 1202. The support sleeve 1203 is rotatably connected to the connecting shaft 1101. A fourth compression spring 1204 is fitted on the limiting rod 1202, and the fourth compression spring 1204 is supported between the connecting sleeve 12 and the support sleeve 1203. In this invention, the second motor 904 is linked with the driven pulley 9041 and the belt 9042 to synchronously drive the two sets of support rollers 901 to rotate, ensuring uniform and stable conveying power and providing uniformity for calendering operations. Under rapid feeding conditions, a calendering structure with a support roller 901 and a floating double lower pressure roller 11 is adopted. The adjustment frame 10 is driven to rise and fall by the cylinder 1001, which can precisely control the basic calendering gap between the lower pressure roller 11 and the support roller 901. The lower pressure roller 11 is connected to the connecting sleeve frame 1004 by the connecting shaft 1101 and the rotating sleeve 1102 at both ends. Together with the connecting sleeve 12, the limiting rod 1202 and the fourth compression spring 1204, a floating buffer structure is formed, which enables the lower pressure roller 11 to have a vertical adaptive floating function. During the calendering process, the pressing gap can be automatically finely adjusted according to the local thickness difference of the paper to achieve flexible calendering. It can fully compact and flatten the thick paper, and avoid the thin paper being damaged by hard squeezing.

[0027] The working principle of this embodiment is as follows: During installation, the top of the fixing frame 2 is symmetrically arranged with support frames 201 with placement grooves 202. The material roller 3 is initially positioned and supported by the placement rings 301 at both ends directly engaging the placement grooves 202. No complex alignment assembly is required, and a single person can complete the placement of the material roller 3. At the same time, the placement rings 301 are equipped with threaded sleeves 302 and locking rings 303 to form a locking structure. The threaded sleeves 302 can slide on the material roller 3 to adjust the spacing of the placement rings 301 to adapt to paper rolls of different widths. After adjustment, rotating the locking rings 303 can quickly lock the threaded sleeves 302 without disassembling a large number of bolts. During disassembly, only the locking rings 303 need to be loosened to directly remove the material roller 3 from the placement grooves 202 of the support frame 201; positioning components 4. Three limiting grooves 402 are arranged in the inner ring array. The adjusting sleeve 5 is equipped with three sets of retractable limiting blocks 505. The three points synchronously engage with the limiting grooves 402 to form a ring multi-point limiting. At the same time, the limiting block 505 is equipped with a limiting slide rod 5051 and a second compression spring 5052 combined with the limiting sleeve 504 to form an elastic pressing structure. The second compression spring 5052 continuously pushes the limiting block 505 into the limiting groove 402. Under running vibration, there will be no loosening or limiting failure. In addition, a first compression spring 502 is set between the placement ring 301 and the support ring 501. The first compression spring 502 elastically presses against the end face of the paper roll to eliminate the assembly gap between the paper roll and the limiting structure and clamp the paper roll from both ends. In operation, the first motor 604 drives the reciprocating screw 603 to rotate, which, in conjunction with the limiting rod 602, guides the adjusting seat 7. Through the meshing transmission between the reciprocating screw 603 and the cam shaft 703, the adjusting seat 7 and the scraper plate 8 at the bottom move in a stable left-right reciprocating linear motion above the guide roller 601. This allows for all-round reciprocating scraping and smoothing of the packaging paper surface during the conveying process, relieving local stress generated during paper conveying, and flattening loose and stacked areas of the paper. The second motor 904, through the linkage of the driving pulley 9041, belt 9042, and driven pulley 902, synchronously drives the two sets of support rollers 901 to rotate, ensuring uniform and stable conveying power and providing a constant speed for calendering operations. The feeding conditions employ a calendering structure with a support roller 901 and a floating double lower pressure roller 11. The adjustment frame 10 is driven to rise and fall by a cylinder 1001, which can precisely control the basic calendering gap between the lower pressure roller 11 and the support roller 901. The lower pressure roller 11 is connected to the connecting shaft 1101 and the rotating sleeve 1102 at both ends of the lower pressure roller 11 in a rolling engagement with the connecting sleeve frame 1004. Combined with the connecting sleeve 12, the limiting rod 1202 and the fourth compression spring 1204, a floating buffer structure is formed, which enables the lower pressure roller 11 to have a vertical adaptive floating function. During the calendering process, the pressing gap can be automatically finely adjusted according to the local thickness difference of the paper to achieve flexible calendering. This can fully compact and flatten thick paper while avoiding the hard squeezing and damage of thin paper.

Claims

1. A packaging paper calendering and finishing device, characterized in that, include: A base (1) is provided with a fixed frame (2) on the rear side of the top of the base (1); a material roller (3) is provided above the fixed frame (2); two positioning parts (4) are provided on the material roller (3), and the two positioning parts (4) are distributed symmetrically on the left and right; an adjusting sleeve (5) is provided on the outer side of the two positioning parts (4); a first mounting frame (6) is provided on the front side of the top of the base (1); an adjusting seat (7) is provided between the first mounting frames (6); a scraper (8) is provided on the adjusting seat (7); a second mounting frame (9) is provided on the top of the base (1), and the second mounting frame (9) is located in front of the first mounting frame (6); an adjusting frame (10) is provided between the second mounting frames (9); two lower pressure rollers (11) are provided below the adjusting frame (10), and the two lower pressure rollers (11) are distributed in parallel; connecting sleeves (12) are provided on the left and right sides of the lower pressure rollers (11). The fixed frame (2) has two support frames (201) on the top, and the two support frames (201) are distributed symmetrically. The support frames (201) are provided with placement slots (202). The material roller (3) is provided with two placement rings (301), and the placement rings (301) are connected to the support frame (201) through the placement groove (202). A threaded sleeve (302) is provided on one side of the placement ring (301), and a locking ring (303) is provided on the threaded sleeve (302). The threaded sleeve (302) is fitted onto the material roller (3) and locked and controlled by the locking ring (303).

2. The packaging paper calendering and finishing device according to claim 1, characterized in that, The positioning component (4) is provided with a bearing ring (401), and the positioning component (4) is rotatably connected to the material roller (3) through the bearing ring (401). The inner circumferential surface of the positioning component (4) is provided with three limiting grooves (402), and the three limiting grooves (402) are distributed in a ring array.

3. The packaging paper calendering and finishing device according to claim 2, characterized in that, The adjusting sleeve (5) is provided with a support ring (501) on one side, and a first compression spring (502) is provided on one side of the support ring (501). The first compression spring (502) is supported between the placement ring (301) and the support ring (501). The adjusting sleeve (5) is provided with three mounting grooves (503). A limiting sleeve (504) is provided on the mounting groove (503). A limiting block (505) is slidably installed in the mounting groove (503). A limiting slide rod (5051) is provided on one side of the limiting block (505). A second compression spring (5052) is fitted on the limiting slide rod (5051). The limiting slide rod (5051) is slidably inserted into the limiting sleeve (504), and the second compression spring (5052) is supported between the limiting sleeve (504) and the limiting block (505). The limiting block (505) is engaged with the limiting groove (402) of the positioning member (4).

4. The packaging paper calendering and finishing device according to claim 1, characterized in that, A guide roller (601) is rotatably mounted on the first mounting frame (6), and a scraper plate (8) is located above the guide roller (601). A limiting rod (602) is provided on the first mounting frame (6), and the limiting rod (602) is located above the guide roller (601). A reciprocating screw (603) is rotatably mounted on the first mounting frame (6). A first motor (604) is provided on one side of the first mounting frame (6), and the shaft of the first motor (604) is connected to the reciprocating screw (603).

5. A packaging paper calendering and finishing device according to claim 4, characterized in that, The rear end of the adjusting seat (7) is provided with a guide sleeve (701), and the guide sleeve (701) is slidably fitted on the limiting round rod (602). The front end of the adjusting seat (7) is provided with a limiting sleeve (702). The inner circumferential surface of the limiting sleeve (702) is provided with two convex shafts (703), and the two convex shafts (703) are symmetrically distributed. The limiting sleeve (702) is slidably fitted on the reciprocating screw (603), and the convex shafts (703) are meshed with the reciprocating screw (603). The bottom of the adjusting seat (7) is provided with a limiting sleeve frame (704), and the scraper plate (8) is located inside the limiting sleeve frame (704). The upper part of the limiting sleeve frame (704) is provided with a limiting through groove (705).

6. The packaging paper calendering and finishing device according to claim 5, characterized in that, The scraper plate (8) has two limiting posts (801) at the top, and the two limiting posts (801) are distributed vertically and parallelly. A third compression spring (802) is fitted on the limiting post (801). A limiting slider (803) is provided at the top of the limiting post (801). The limiting post (801) is slidably inserted into the limiting sleeve (704). The third compression spring (802) is supported between the scraper plate (8) and the limiting sleeve (704). The limiting slider (803) is slidably connected to the limiting through groove (705).

7. The packaging paper calendering and finishing device according to claim 1, characterized in that, Two support rollers (901) are rotatably mounted between the second mounting brackets (9), and the two support rollers (901) are distributed in a parallel manner. The pressure roller (11) is located above the support rollers (901). A driven pulley (902) is provided at the end of the shaft on one side of the support rollers (901). A support top bracket (903) is provided between the tops of the second mounting brackets (9). A second motor (904) is provided below the second mounting brackets (9), and the second motor (904) is fixedly connected to the base (1). The second motor (904) has a drive pulley (9041) at the end of its shaft. The drive pulley (9041) is equipped with a belt (9042), and the drive pulley (9041) is connected to two driven pulleys (902) via the belt (9042).

8. The packaging paper calendering and finishing device according to claim 1, characterized in that, The top of the adjustment frame (10) is provided with two cylinders (1001), and the two cylinders (1001) are distributed symmetrically on the left and right sides. The cylinders (1001) are fixedly installed on the support top frame (903). The left and right ends of the adjustment frame (10) are provided with limiting side frames (1002). The bottom of the limiting side frames (1002) is provided with two adjustment grooves (1003). The two limiting side frames (1002) are provided with connecting sleeves (1004) on opposite sides.

9. A packaging paper calendering and finishing device according to claim 8, characterized in that, The lower pressure roller (11) is provided with connecting shafts (1101) at both ends. A rotating sleeve (1102) is fitted on the connecting shaft (1101), and the rotating sleeve (1102) is tumbledly connected to the connecting sleeve frame (1004).

10. A packaging paper calendering and finishing device according to claim 9, characterized in that... The top of the connecting sleeve (12) is provided with a connecting block (1201), and the connecting block (1201) is rotatably connected to the connecting sleeve frame (1004) through a pin. The bottom of the connecting sleeve (12) is slidably inserted with a limiting rod (1202). The bottom end of the limiting rod (1202) is provided with a support sleeve (1203), and the support sleeve (1203) is rotatably connected to the connecting shaft (1101). A fourth compression spring (1204) is fitted on the limiting rod (1202), and the fourth compression spring (1204) is supported between the connecting sleeve (12) and the support sleeve (1203).

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