A roll cover and a production apparatus thereof

Abstract

The application belongs to the technical field of roller sheaths, in particular to a roller sheath and a production equipment thereof, which comprises a rubber sheath; a plurality of groups of grooves are uniformly arranged on the outer ring of the rubber sheath; each group of the grooves is annularly distributed; each adjacent group of the grooves is uniformly arranged in a staggered manner; a plurality of groups of convex strip pairs are uniformly and fixedly connected to the outer ring of the rubber sheath; each group of the convex strip pairs is annularly distributed; the width between the two convex strips of the convex strip pair is matched with the width of the groove; each group of the convex strip pairs is alternately arranged with each group of the grooves; the roller sheath is sleeved on the outer ring of the upper roller and the lower roller, the two roller sheaths are installed in a staggered manner, so that the grooves on the two roller sheaths correspond to the convex strip pairs, when the upper roller and the lower roller hold the fiber, the convex strip pairs on one roller sheath can be clamped into the grooves on the other roller sheath, so as to ensure that the roller sheath can always have a traction force on the fabric, and the probability of fabric conveying stop and material jamming is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of roller leather cases, in particular to a roller leather case and production equipment thereof. Background Art

[0002] Rollers are cylindrical rotating parts in textile machinery that perform feeding, drafting, and output functions. They are widely used in drafting, carding, and conveying mechanisms. Rollers are the main components of the drafting mechanism of spinning machines. They are paired with upper and lower rollers to form the roller mouth, which holds the yarn for drafting. The quality of the rollers affects the uniformity of the output yarn. The upper rollers used in spinning machinery are covered with elastic roller leather to ensure that they can evenly hold the fibers without damaging them.

[0003] A patent application with publication number CN206591285U discloses a roller leather sleeve comprising a cylindrical rubber body. Key to this is the surface of the body, which is provided with an opaque layer. This opaque layer protects the rubber body within, slowing down the aging of the body due to light exposure, thereby extending its service life. This utility model features a simple, low-cost structure. By adding an opaque layer and conductive columns, the roller leather sleeve addresses the issues of body aging and the generation of static electricity buildup around the rubber roller, reducing costs for businesses and demonstrating excellent practicality.

[0004] Although the roller cover can hold the fiber evenly without damaging it, after a certain period of use, the surface of the roller cover will be polished smooth due to friction, which will reduce the traction of the roller cover on the thinner parts of the fabric, or even eliminate it, causing the fabric to be transported and stopped, or even jammed.

[0005] To this end, the present invention provides a roller leather cover and a production device thereof. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the roller leather cover described in the present invention includes a rubber leather cover; the outer ring of the rubber leather cover is evenly provided with multiple groups of grooves; each group of the grooves is distributed in a ring shape; adjacent groups of the grooves are evenly staggered; the outer ring of the rubber leather cover is evenly fixed with multiple groups of ridge pairs; each group of the ridge pairs is distributed in a ring shape; the width between the two ridges of the ridge pair matches the width of the groove; each group of the ridge pairs is alternately arranged with each group of the grooves; the roller leather cover is covered on the outer rings of the upper roller and the lower roller, and the two roller leather covers are staggered so that the grooves on the two roller leather covers correspond to the ridge pairs, so that when the upper roller and the lower roller hold the fiber, the ridge pair on one roller leather cover can be stuck in the groove on the other roller leather cover, thereby ensuring that the roller leather cover can always exert traction on the fabric, reducing the probability of fabric conveying pauses and material jams.

[0008] Preferably, the inner ring of the rubber leather sleeve is evenly provided with multiple groups of circular grooves; each group of the circular grooves is distributed in a ring shape; a disc-shaped rubber sheet is fixed to the middle of the circular grooves; the circular grooves of the inner ring of the rubber leather sleeve and the disc-shaped rubber sheet are squeezed to discharge the internal air, and generate negative pressure between the outer walls of the upper roller and the lower roller, so that the rubber leather sleeve is firmly adsorbed on the outer rings of the upper roller and the lower roller, thereby reducing the probability of displacement of the roller leather sleeve and improving the accuracy of the matching of the two roller leather sleeves.

[0009] Preferably, the rubber sheath is composed of styrene-butadiene rubber, butadiene rubber, sulfur, vulcanization accelerator, accelerator DM, accelerator TMTM, stearic acid, and antioxidant RD; by adding sulfur and vulcanization accelerator, not only the vulcanization rate and mechanical properties are improved, but also the wear resistance is greatly enhanced.

[0010] Preferably, a production device for a roller leather cover is used to produce the above-mentioned roller leather cover, and the production device includes an injection molding machine; an injection mold is installed on the injection molding machine; the injection mold includes a fixed mold and a movable mold; the fixed mold is bolted to the fixed platen of the injection molding machine; the movable mold is bolted to the movable platen of the injection molding machine; a pair of molding grooves are opened in the middle of the surface where the fixed mold and the movable mold fit together; a No. 1 molding half-cylinder is bolted to the inner wall of the molding groove of the fixed mold; a No. 2 molding half-cylinder is bolted to the inner wall of the molding groove of the movable mold; the No. 1 molding half-cylinder and The No. 2 molding half-cylinder can be fitted together to form the entire molding cylinder; injection holes are provided in the middle of both ends of the No. 1 molding half-cylinder; an injection channel is provided inside the fixed mold; the inlet end of the injection channel passes through the fixed mold, and the inlet end of the injection channel is connected to the nozzle of the injection molding machine; through holes are provided at both ends of the center of the molding groove of the movable mold; a core-pulling column is slidably installed inside the through hole; the ends of the core-pulling columns on both sides that are close to each other coincide with each other; a driving unit is provided on both sides of the movable mold, and the driving unit drives the core-pulling column to slide along the through hole; the production of the roller leather cover is completed.

[0011] Preferably, multiple groups of molding protrusions are evenly fixed on the inner walls of the No. 1 molding half-cylinder and the No. 2 molding half-cylinder; the molding protrusions match the grooves on the rubber leather cover; multiple groups of molding grooves are evenly opened on the inner walls of the No. 1 molding half-cylinder and the No. 2 molding half-cylinder; the molding grooves match the pairs of protrusions on the rubber leather cover; thereby, the roller leather cover is molded in one step, reducing the production and molding steps of the roller leather cover and improving the efficiency of production and processing.

[0012] Preferably, the driving unit includes a mounting bracket; mounting brackets are fixedly connected to the middle of both sides of the movable mold; a motor is fixedly connected to the end of the mounting bracket away from the movable mold; a screw rod is fixedly connected to the end of the rotating shaft of the motor; the other end of the screw rod is rotatably connected to the side of the movable mold; push plates are installed at the ends of the two core-pulling columns on the same side close to the mounting bracket; the bottom of the push plate is slidably connected to the mounting bracket; the screw rod passes through the middle of the push plate, and the screw rod is threadedly matched with the push plate; so that when the roller leather cover is formed, a circular hole is formed in the middle of the roller leather cover; the influence of the core-pulling column on the blanking of the roller leather cover is reduced, and the roller leather cover is easily removed.

[0013] Preferably, an inner cavity is provided in the middle of one end of the core-pulling column close to the mounting bracket; a plurality of groups of sliding holes are evenly provided on the outer ring of one end of the core-pulling column away from the mounting bracket; each group of sliding holes is distributed in a ring shape; a forming column is slidably installed inside the sliding hole; the forming column matches the circular groove on the rubber leather cover; a disc-shaped groove is provided at one end of the forming column away from the inner cavity, and a pointed conical protrusion is provided in the middle of the disc-shaped groove; the disc-shaped groove matches the disc-shaped rubber sheet; an expansion unit is provided inside the inner cavity of the core-pulling column, and the expansion unit can push the forming column to slide outward along the sliding hole; thereby, the roller leather cover is formed in one step, the production and forming steps of the roller leather cover are reduced, and the production and processing efficiency is improved.

[0014] Preferably, the expansion unit includes a push rod; a push rod is slidably installed inside the inner cavity; a hydraulic cylinder is fixedly connected to one end of the core-pulling column close to the mounting bracket; the piston rod of the hydraulic cylinder slides in cooperation with the inner cavity; the piston rod of the hydraulic cylinder is fixedly connected to the push rod; a plurality of frustums are fixedly connected to the outer ring of the push rod; the frustum corresponds to each of the sliding holes; a plurality of sliding grooves are evenly provided on the outer ring of the frustum; a sliding ball is fixedly connected to one end of the forming column close to the frustum; the sliding ball is slidably connected to the sliding groove; thereby providing power for the movement of the forming column.

[0015] Preferably, cooling channels are provided on both sides of the interior of the fixed mold and the movable mold; cooling water chambers are provided inside the No. 1 molding half-cylinder and the No. 2 molding half-cylinder; both ends of the cooling water chamber are respectively connected to the cooling channels on both sides; the middle parts of the No. 1 molding half-cylinder and the No. 2 molding half-cylinder are completely wrapped by the provided cooling water chamber, thereby improving the uniformity of temperature changes during cooling and molding of the roller leather cover.

[0016] Preferably, a mounting groove is provided on the side of the through hole away from the fixed mold and close to one end of the forming groove of the movable mold; an arc plate is hinged inside the mounting groove; the outer ring of the rotating shaft of the arc plate is provided with a torsion spring; the arc convex surface of the arc plate slides with the outer wall of the core pulling column; a diverter joint is fixed on the inner wall of the mounting groove; an air hole is provided between the mounting groove and the side wall of the movable mold; the air hole is connected to the diverter joint; a plurality of high-pressure air nozzles are evenly fixed on one side of the arc plate close to the inside of the mounting groove; the high-pressure air nozzle and the diverter joint are connected by a hose; the air flow ejected from the high-pressure air nozzle impacts the inner wall of one end of the roller leather cover, pushing the roller leather cover to flip and dump to the outside of the movable mold, thereby realizing automatic unloading, reducing the workload of the staff and improving production efficiency.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The roller leather cover and its production equipment described in the present invention are provided with grooves, convex strip pairs, circular grooves and disc-shaped rubber sheets; the roller leather cover is arranged on the outer rings of the upper roller and the lower roller, and the circular grooves of the inner ring of the rubber leather cover and the disc-shaped rubber sheet are squeezed to discharge the internal air, thereby generating negative pressure between the outer walls of the upper roller and the lower roller, and firmly adsorbing the rubber leather cover on the outer rings of the upper roller and the lower roller, reducing the probability of displacement of the roller leather cover and improving the accuracy of the cooperation between the two roller leather covers; the two roller leather covers are staggered and installed, and the convex strip pair on one roller leather cover can be stuck in the grooves on the other roller leather cover, ensuring that the roller leather cover can always exert traction on the fabric, reducing the probability of fabric conveying pauses and material jams.

[0019] 2. The roller leather cover and its production equipment described in the present invention are provided by setting a No. 1 molding half-cylinder, a No. 2 molding half-cylinder, a core-pulling column, a molding strip groove, a molding column and a disc-shaped groove; the No. 1 molding half-cylinder and the No. 2 molding half-cylinder are fitted together to form the entire molding cylinder, the core-pulling column slides into the molding cylinder, and the ends of the core-pulling columns on both sides are tightly attached to each other. After the raw material solution fills the molding cylinder, it is cooled and molded. The raw material solution will be injected into the disc-shaped groove, forming a circular groove and a disc-shaped rubber sheet on the inner wall of the roller leather cover, forming a roller leather cover in the molding cylinder, and completing the production of the roller leather cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1is a perspective view of the roller sheath in the present application;

[0022] Figure 2 is a partial sectional view of the roller sheath in the present application;

[0023] Figure 3 is a perspective view of the production equipment in the present application;

[0024] Figure 4 is a perspective view of the injection mold in the present application;

[0025] Figure 5 is an exploded view of the movable mold in the present application;

[0026] Figure 6 is a perspective view of the first and second forming half cylinders in the present application;

[0027] Figure 7 is an exploded view of the core-pulling post in the present application;

[0028] Figure 8 is a perspective view of the conical platform and forming post in the present application;

[0029] Figure 9 is a sectional view of the injection mold in the present application;

[0030] Figure 10 is Figure 9 a partial enlarged view of position A in the present application;

[0031] Figure 11 is Figure 9 a partial enlarged view of position B in the present application;

[0032] In the figure: 1, rubber sheath; 2, groove; 3, convex strip pair; 4, round groove; 5, disc-shaped rubber piece; 6, injection molding machine; 7, fixed mold; 8, movable mold; 9, first forming half cylinder; 10, second forming half cylinder; 11, injection molding hole; 12, injection molding channel; 13, through hole; 14, core-pulling post; 15, forming protrusion; 16, forming strip groove; 17, mounting bracket; 18, motor; 19, screw rod; 20, push plate; 21, inner cavity; 22, sliding hole; 23, forming post; 24, disc-shaped groove; 25, push rod; 26, hydraulic cylinder; 27, conical platform; 28, sliding groove; 29, sliding ball; 30, cooling channel; 31, cooling water cavity; 32, mounting groove; 33, arc plate; 34, shunt joint; 35, air hole; 36, high-pressure air nozzle. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0034] As Figures 1 to 2As shown, a roller leather case according to an embodiment of the present invention comprises a rubber leather case 1; the outer ring of the rubber leather case 1 is evenly provided with a plurality of groups of grooves 2; the grooves 2 of each group are distributed in an annular shape; the adjacent groups of grooves 2 are evenly staggered; the outer ring of the rubber leather case 1 is evenly fixed with a plurality of groups of ridge pairs 3; the ridge pairs 3 of each group are distributed in an annular shape; the width between the two ridges of the ridge pairs 3 matches the width of the grooves 2; the ridge pairs 3 of each group are alternately arranged with the grooves 2 of each group; by opening The grooves 2 and ridge pairs 3 increase the roughness of the surface of the roller leather cover; when in use, the roller leather cover is put on the outer ring of the upper roller and the lower roller, and the two roller leather covers are staggered so that the grooves 2 on the two roller leather covers correspond to the ridge pairs 3, so that when the upper roller and the lower roller hold the fiber, the ridge pair 3 on one roller leather cover can be stuck in the groove 2 on the other roller leather cover, thereby ensuring that the roller leather cover can always exert traction on the fabric, reducing the probability of fabric conveying pauses and material jams.

[0035] like Figures 1 to 2 As shown, the inner ring of the rubber cover 1 is evenly provided with multiple groups of circular grooves 4; each group of the circular grooves 4 is distributed in a ring shape; a disc-shaped rubber sheet 5 is fixedly connected to the middle of the circular grooves 4; after the rubber cover 1 is put on the outer rings of the upper roller and the lower roller, the rubber cover 1 is tightly put on the outer rings of the upper roller and the lower roller under the action of its own elasticity. At this time, the circular grooves 4 and the disc-shaped rubber sheet 5 of the inner ring of the rubber cover 1 are squeezed, and the internal air is discharged, and negative pressure is generated between the outer walls of the upper roller and the lower roller, so that the rubber cover 1 is firmly adsorbed on the outer rings of the upper roller and the lower roller, thereby reducing the probability of displacement of the roller cover and improving the accuracy of the matching of the two roller covers.

[0036] The rubber sheath 1 is composed of styrene-butadiene rubber, butadiene rubber, sulfur, vulcanization accelerator, accelerator DM, accelerator TMTM, stearic acid, and antioxidant RD; by adding sulfur and vulcanization accelerator, not only the vulcanization rate and mechanical properties are improved, but also the wear resistance is greatly enhanced.

[0037] like Figures 3 to 5As shown, a production equipment for roller leather cover, which is used to produce the above-mentioned roller leather cover, and the production equipment includes an injection molding machine 6; an injection mold is installed on the injection molding machine 6; the injection mold includes a fixed mold 7 and a movable mold 8; the fixed mold 7 is bolted to the fixed platen of the injection molding machine 6; the movable mold 8 is bolted to the movable platen of the injection molding machine 6; a pair of molding grooves are opened in the middle of the surface where the fixed mold 7 and the movable mold 8 fit together; a molding groove of the fixed mold 7 is bolted to the inner wall Half-cylinder 9; a second molding half-cylinder 10 is bolted to the inner wall of the molding groove of the movable mold 8; the first molding half-cylinder 9 and the second molding half-cylinder 10 can be fitted together to form a complete molding cylinder; injection holes 11 are formed in the middle of both ends of the first molding half-cylinder 9; an injection channel 12 is formed inside the fixed mold 7; the inlet end of the injection channel 12 passes through the fixed mold 7 and is connected to the nozzle of the injection molding machine 6; through holes 13 are formed at both ends of the center of the molding groove of the movable mold 8; A core-pulling column 14 is slidably installed inside the through hole 13; the ends of the core-pulling columns 14 on both sides are matched; a driving unit is provided on both sides of the movable mold 8, and the driving unit drives the core-pulling column 14 to slide along the through hole 13; when working, the prepared raw material is added to the hopper of the injection molding machine 6, and the injection molding machine 6 heats and melts the raw material until the raw material is heated to a molten state. At this time, the injection molding machine 6 pushes the movable mold 8 and the fixed mold 7 to close the mold, so that the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder The cylinder 10 is fitted to form the entire molding cylinder. At the same time, the driving unit pushes the core-pulling column 14 to slide into the molding cylinder, and the ends of the core-pulling columns 14 on both sides are tightly attached to each other; the injection molding machine 6 injects the raw material melt into the injection channel 12 of the fixed mold 7, and the raw material melt is injected into the molding cylinder along the injection channel 12 through the injection hole 11. After the raw material melt fills the molding cylinder, it is cooled and molded to form a roller leather cover in the molding cylinder; the movable mold 8 and the fixed mold 7 are separated to take out the molded roller leather cover, thereby completing the production of the roller leather cover.

[0038] like Figure 6 As shown, multiple groups of molding protrusions 15 are evenly fixed on the inner walls of the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10; the molding protrusions 15 match the grooves 2 on the rubber leather cover 1; multiple groups of molding grooves 16 are evenly opened on the inner walls of the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10; the molding grooves 16 match the convex strip pairs 3 on the rubber leather cover 1; by means of the molding protrusions 15 fixed on the inner walls of the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10 and the opened molding grooves 16, when the raw material melt fills the molding cylinder for cooling molding, grooves 2 and convex strip pairs 3 will be formed on the outer wall of the roller leather cover, thereby enabling the one-step molding of the roller leather cover, reducing the production and molding steps of the roller leather cover, and improving the efficiency of production and processing.

[0039] like Figure 4 、 Figure 5 and Figure 7As shown, the driving unit includes a mounting bracket 17; the middle part of both sides of the movable mold 8 is fixedly connected with a mounting bracket 17; the end of the mounting bracket 17 away from the movable mold 8 is fixedly connected to a motor 18; the end of the rotating shaft of the motor 18 is fixedly connected with a screw rod 19; the other end of the screw rod 19 is rotatably connected to the side of the movable mold 8; the ends of the two core-pulling columns 14 on the same side close to the mounting bracket 17 are installed with a push plate 20; the bottom of the push plate 20 is slidably connected to the mounting bracket 17; the screw rod 19 passes through the middle of the push plate 20, and the screw rod 19 is threadedly matched with the push plate 20; when working, when the No. 1 molding half cylinder 9 and the No. 2 molding half cylinder 10 are fitted together to form the entire molding cylinder, the electric The machine 18 drives the screw rod 19 to rotate, drives the push plate 20 to slide along the mounting bracket 17 toward the movable mold 8, and pushes the core pulling column 14 to slide into the forming cylinder along the through hole 13. The two core pulling columns 14 are docked in the forming cylinder to form a whole, so that when the roller leather cover is formed, a circular hole is formed in the middle of the roller leather cover; when the movable mold 8 and the fixed mold 7 are parted, the No. 1 molding half cylinder 9 is driven to separate from the No. 2 molding half cylinder 10. At this time, the motor 18 drives the screw rod 19 to rotate in the opposite direction, drives the push plate 20 along the mounting bracket 17 away from the movable mold 8, and drives the core pulling column 14 to slide into the through hole 13, thereby reducing the influence of the core pulling column 14 on the blanking of the roller leather cover, making it easier to remove the roller leather cover.

[0040] like Figures 7 to 11 As shown, an inner cavity 21 is provided in the middle of one end of the core-pulling column 14 close to the mounting bracket 17; a plurality of groups of sliding holes 22 are evenly provided on the outer ring of one end of the core-pulling column 14 away from the mounting bracket 17; each group of sliding holes 22 is distributed in a ring shape; a forming column 23 is slidably installed inside the sliding hole 22; the forming column 23 matches the circular groove 4 on the rubber leather cover 1; a disc-shaped groove 24 is provided at one end of the forming column 23 away from the inner cavity 21, and a pointed conical protrusion is provided in the middle of the disc-shaped groove 24; the disc-shaped groove 24 matches the disc-shaped rubber sheet 5; an expansion unit is provided inside the inner cavity 21 of the core-pulling column 14, and the expansion unit can push the forming column 23 along the circular groove 4 on the rubber leather cover 1; The roller cover is formed by a one-step molding process, which reduces the production and molding steps of the roller cover and improves the efficiency of production and processing. After the roller cover is formed, the expansion unit drives the molding column 23 to slide into the sliding hole 22, thereby reducing the impact on the core-pulling column 14 sliding out of the molding cylinder.

[0041] like Figures 7 to 11As shown, the expansion unit includes a push rod 25; a push rod 25 is slidably installed inside the inner cavity 21; a hydraulic cylinder 26 is fixedly connected to one end of the core-pulling column 14 close to the mounting bracket 17; the piston rod of the hydraulic cylinder 26 slides with the inner cavity 21; the piston rod of the hydraulic cylinder 26 is fixedly connected to the push rod 25; a plurality of frustums 27 are fixedly connected to the outer ring of the push rod 25; the frustums 27 correspond to each of the sliding holes 22; a plurality of slide grooves 28 are evenly opened on the outer ring of the frustum 27; a sliding ball 29 is fixedly connected to one end of the forming column 23 close to the frustum 27; the sliding ball 29 is slidably connected to the slide groove 28; when working, the No. 1 forming half cylinder 9 and the No. 2 forming half cylinder 10 fit together to form a shape. When the entire forming cylinder is formed, the hydraulic cylinder 26 pushes the push rod 25 to slide toward the inside of the inner cavity 21, pushing the frustum 27 to move in the inner cavity 21, so that the sliding ball 29 slides along the sliding groove 28, so that the sliding ball 29 slides from the tip of the frustum 27 to the thick end of the frustum 27, pushing the forming column 23 to slide out of the sliding hole 22 to the outside of the core-pulling column 14; after the roller leather sleeve is formed, the hydraulic cylinder 26 pulls the push rod 25 to slide toward the outside of the inner cavity 21, driving the frustum 27 to move in the inner cavity 21, so that the sliding ball 29 slides along the sliding groove 28, so that the sliding ball 29 slides from the thick end of the frustum 27 to the tip of the frustum 27, pulling the forming column 23 to slide into the sliding hole 22; thereby providing power for the movement of the forming column 23.

[0042] like Figure 4 、 Figure 5 、 Figure 10 and Figure 11 As shown, cooling channels 30 are provided on both sides of the interior of the fixed mold 7 and the movable mold 8; cooling water chambers 31 are provided in the interiors of the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10; both ends of the cooling water chamber 31 are respectively connected with the cooling channels 30 on both sides; during operation, the coolant enters the cooling water chamber 31 through the cooling channel 30 on one side, and is then discharged from the cooling channel 30 on the other side, so as to cool down the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10; the middle parts of the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10 are completely wrapped by the provided cooling water chamber 31, thereby improving the uniformity of temperature change during cooling and molding of the roller leather cover.

[0043] like Figure 11As shown, a mounting groove 32 is provided on the side of the through hole 13 away from the fixed mold 7 and close to the end of the forming groove of the movable mold 8; an arc plate 33 is hinged inside the mounting groove 32; the outer ring of the rotating shaft of the arc plate 33 is sleeved with a torsion spring; the arc convex surface of the arc plate 33 slides with the outer wall of the core pulling column 14; a diverter joint 34 is fixed on the inner wall of the mounting groove 32; an air hole 35 is provided between the mounting groove 32 and the side wall of the movable mold 8; the air hole 35 is connected to the diverter joint 34; a plurality of high-pressure gas nozzles 36 are evenly fixed on one side of the arc plate 33 close to the inside of the mounting groove 32; the high-pressure gas nozzle 36 and the diverter joint 34 are connected through a hose; when working, the air flow generated by the air pump enters the diverter joint 34 along the air hole 35, and is transported to the high-pressure gas after diversion. The air is ejected from the nozzle 36; when the core-pulling column 14 is pushed to slide into the forming cylinder along the through hole 13, the outer wall of the core-pulling column 14 squeezes the arc convex surface of the arc plate 33, so that the arc plate 33 rotates into the mounting groove 32, blocking and sealing the high-pressure air nozzle 36 to prevent the airflow from entering the forming groove; after the movable mold 8 and the fixed mold 7 are separated, at this time, the core-pulling column 14 slides into the through hole 13, and the pressure of the core-pulling column 14 on the arc plate 33 disappears, and the arc plate 33 is reset under the drive of the torsion spring, driving the high-pressure air nozzle 36 to rotate, so that the high-pressure air nozzle 36 is tilted to point to the inner wall of one end of the roller leather cover, and the airflow ejected from the high-pressure air nozzle 36 impacts the inner wall of one end of the roller leather cover, pushing the roller leather cover to flip and dump to the outside of the movable mold 8, thereby realizing automatic unloading, reducing the workload of the staff and improving production efficiency.

[0044] Working principle: the prepared raw materials are added into the hopper of the injection molding machine 6, and the injection molding machine 6 heats and melts the raw materials until the raw materials are heated into a molten state. At this time, the injection molding machine 6 pushes the movable mold 8 and the fixed mold 7 to close the mold, so that the No. 1 molding half-cylinder 9 and the No. 2 molding half-cylinder 10 are fitted together to form the entire molding cylinder; the motor 18 drives the screw rod 19 to rotate, and drives the push plate 20 to slide along the mounting bracket 17 toward the movable mold 8, pushing the core pulling column 14 to slide along the through hole 13 into the molding cylinder, and the two core pulling columns 14 are docked in the molding cylinder to form a whole; the outer wall of the core pulling column 14 squeezes the arc convex surface of the arc plate 33, so that the arc plate 33 rotates into the mounting groove 32, and the high-pressure gas nozzle 36 is blocked and sealed to prevent the airflow from entering the molding groove; at the same time When the tumbler 25 is pushed into the inner cavity 21, the hydraulic cylinder 26 pushes the push rod 25 to slide into the inner cavity 21, pushing the frustum 27 to move in the inner cavity 21, so that the sliding ball 29 slides along the sliding groove 28, so that the sliding ball 29 slides from the tip of the frustum 27 to the thick end of the frustum 27, pushing the molding column 23 to slide out of the sliding hole 22 to the outside of the core-pulling column 14; the injection molding machine 6 injects the raw material melt into the injection channel 12 of the fixed mold 7, and the raw material melt is injected into the molding cylinder along the injection channel 12 through the injection hole 11. After the raw material melt fills the molding cylinder, the coolant enters the cooling water cavity 31 through the cooling channel 30 on one side, and is then discharged from the cooling channel 30 on the other side to cool down the No. 1 molding half cylinder 9 and the No. 2 molding half cylinder 10, forming a roller cover in the molding cylinder;

[0045] After the roller leather cover is formed, the hydraulic cylinder 26 pulls the push rod 25 to slide to the outside of the inner cavity 21, driving the frustum 27 to move in the inner cavity 21, so that the sliding ball 29 slides along the slide groove 28, so that the sliding ball 29 slides from the thick end of the frustum 27 to the tip of the frustum 27, pulling the forming column 23 to slide into the sliding hole 22; when the movable mold 8 and the fixed mold 7 are separated, the No. 1 forming half cylinder 9 and the No. 2 forming half cylinder 10 are driven to separate. At this time, the motor 18 drives the screw 19 to rotate in the opposite direction , driving the push plate 20 along the mounting bracket 17 away from the movable mold 8, driving the core-pulling column 14 to slide into the through hole 13; the pressure of the core-pulling column 14 on the curved plate 33 disappears, and the curved plate 33 is reset under the drive of the torsion spring, driving the high-pressure gas nozzle 36 to rotate, so that the high-pressure gas nozzle 36 is tilted to point to the inner wall of one end of the roller leather cover. The airflow ejected by the high-pressure gas nozzle 36 impacts the inner wall of one end of the roller leather cover, pushing the roller leather cover to flip and tilt toward the outside of the movable mold 8, thereby completing the production work of the roller leather cover;

[0046] The roller leather cover is put on the outer ring of the upper roller and the lower roller. The rubber leather cover 1 is tightly put on the outer ring of the upper roller and the lower roller under the action of its own elasticity. At this time, the circular groove 4 on the inner ring of the rubber leather cover 1 and the disc-shaped rubber sheet 5 are squeezed to discharge the internal air, and negative pressure is generated between the outer walls of the upper roller and the lower roller, so that the rubber leather cover 1 is firmly adsorbed on the outer ring of the upper roller and the lower roller; the two roller leather covers are staggered so that the grooves 2 on the two roller leather covers correspond to the convex strip pairs 3, so that when the upper roller and the lower roller hold the fiber, the convex strip pair 3 on one roller leather cover can be stuck in the groove 2 on the other roller leather cover, thereby ensuring that the roller leather cover can always exert traction on the fabric, reducing the probability of fabric conveying pauses and material jams.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller cover production equipment, characterized by: The roller cover comprises a rubber cover (1); the outer ring of the rubber cover (1) is evenly provided with a plurality of groups of grooves (2); each group of the grooves (2) is distributed in an annular shape; adjacent groups of the grooves (2) are evenly staggered; the outer ring of the rubber cover (1) is evenly fixed with a plurality of groups of ridge pairs (3); each group of the ridge pairs (3) is distributed in an annular shape; the width between two ridges of the ridge pairs (3) matches the width of the grooves (2); each group of the ridge pairs (3) is alternately provided with each group of the grooves (2); The production equipment comprises an injection molding machine (6); an injection molding mold is installed on the injection molding machine (6); the injection molding mold comprises a fixed mold (7) and a movable mold (8); the fixed mold (7) is bolted to the fixed table of the injection molding machine (6); the movable mold (8) is bolted to the movable table of the injection molding machine (6); a pair of molding grooves are opened in the middle of the surface where the fixed mold (7) and the movable mold (8) are in contact with each other; a No. 1 molding half-cylinder (9) is bolted to the inner wall of the molding groove of the fixed mold (7); a No. 2 molding half-cylinder (10) is bolted to the inner wall of the molding groove of the movable mold (8); the No. 1 molding half-cylinder (9) and the No. 2 molding half-cylinder (10) can be in contact with each other to form a whole molding Cylinder; injection holes (11) are provided at the middle of both ends of the said No. 1 molding half cylinder (9); an injection channel (12) is provided inside the said fixed mold (7); the inlet end of the said injection channel (12) passes through the fixed mold (7), and the inlet end of the injection channel (12) is connected to the nozzle of the injection molding machine (6); through holes (13) are provided at both ends of the molding groove center of the said movable mold (8); a core pulling column (14) is slidably installed inside the said through hole (13); the ends of the core pulling columns (14) on both sides that are close to each other coincide with each other; a driving unit is provided on both sides of the said movable mold (8), and the driving unit drives the core pulling column (14) to slide along the through hole (13); The driving unit includes a mounting bracket (17); the mounting bracket (17) is fixedly connected to the middle of both sides of the movable mold (8); the end of the mounting bracket (17) away from the movable mold (8) is fixedly connected to a motor (18); the end of the rotating shaft of the motor (18) is fixedly connected to a screw rod (19); the other end of the screw rod (19) is rotatably connected to the side of the movable mold (8); the ends of the two core pulling columns (14) on the same side close to the mounting bracket (17) are installed with a push plate (20); the bottom of the push plate (20) is slidably connected to the mounting bracket (17); the screw rod (19) passes through the middle of the push plate (20), and the screw rod (19) and the push plate (20) are threadedly matched; An inner cavity (21) is provided in the middle of one end of the core-pulling column (14) close to the mounting bracket (17); a plurality of groups of sliding holes (22) are evenly provided on the outer ring of one end of the core-pulling column (14) away from the mounting bracket (17); each group of the sliding holes (22) is distributed in a ring shape; a forming column (23) is slidably installed inside the sliding hole (22); the forming column (23) matches the circular groove (4) on the rubber sheath (1); a disc-shaped groove (24) is provided at one end of the forming column (23) away from the inner cavity (21), and a pointed conical protrusion is provided in the middle of the disc-shaped groove (24); the disc-shaped groove (24) matches the disc-shaped rubber sheet (5); an expansion unit is provided inside the inner cavity (21) of the core-pulling column (14), and the expansion unit can push the forming column (23) to slide outward along the sliding hole (22); The expansion unit includes a push rod (25); the push rod (25) is slidably installed inside the inner cavity (21); the end of the core-pulling column (14) close to the mounting bracket (17) is fixedly connected to a hydraulic cylinder (26); the piston rod of the hydraulic cylinder (26) is slidably matched with the inner cavity (21); the piston rod of the hydraulic cylinder (26) is fixedly connected to the push rod (25); the outer ring of the push rod (25) is fixedly connected to a plurality of frustums (27); the frustums (27) correspond to each of the sliding holes (22); the outer ring of the frustum (27) is evenly provided with a plurality of sliding grooves (28); the end of the forming column (23) close to the frustum (27) is fixedly connected to a sliding ball (29); the sliding ball (29) is slidably connected to the sliding groove (28).

2. The roller cover production equipment according to claim 1, characterized in that: The inner ring of the rubber sheath (1) is evenly provided with a plurality of groups of circular grooves (4); each group of the circular grooves (4) is distributed in a ring shape; a disc-shaped rubber sheet (5) is fixed to the middle of the circular groove (4).

3. The roller cover production equipment according to claim 2, characterized in that: The rubber sheath (1) is composed of styrene-butadiene rubber, butadiene rubber, sulfur, vulcanization accelerator, accelerator DM, accelerator TMTM, stearic acid, and antioxidant RD.

4. The roller cover production equipment according to claim 1, characterized in that: The inner walls of the No. 1 molding half-cylinder (9) and the No. 2 molding half-cylinder (10) are uniformly fixed with a plurality of molding protrusions (15); the molding protrusions (15) match the grooves (2) on the rubber cover (1); the inner walls of the No. 1 molding half-cylinder (9) and the No. 2 molding half-cylinder (10) are uniformly provided with a plurality of molding strip grooves (16); the molding strip grooves (16) match the protrusion pairs (3) on the rubber cover (1).

5. The roller leather cover production equipment according to claim 1, characterized in that: Cooling channels (30) are provided on both sides of the interior of the fixed mold (7) and the movable mold (8); cooling water chambers (31) are provided on both sides of the interior of the No. 1 molding half-cylinder (9) and the No. 2 molding half-cylinder (10); and both ends of the cooling water chamber (31) are respectively connected to the cooling channels (30) on both sides.

6. The roller leather cover production equipment according to claim 1, characterized in that: The through hole (13) is provided with a mounting groove (32) on one side away from the fixed mold (7) and close to one end of the molding groove of the movable mold (8); an arc plate (33) is hinged inside the mounting groove (32); a torsion spring is sleeved on the outer ring of the rotating shaft of the arc plate (33); the arc convex surface of the arc plate (33) is slidably matched with the outer wall of the core-pulling column (14); a diversion joint (34) is fixedly connected to the inner wall of the mounting groove (32); an air hole (35) is provided between the mounting groove (32) and the side wall of the movable mold (8); the air hole (35) is connected to the diversion joint (34); a plurality of high-pressure gas nozzles (36) are evenly fixedly connected to one side of the arc plate (33) close to the inside of the mounting groove (32); the high-pressure gas nozzle (36) and the diversion joint (34) are connected through a hose.

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