CN115960555A - Arc-shaped masking tape and preparation process thereof - Google Patents
Arc-shaped masking tape and preparation process thereof Download PDFInfo
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- CN115960555A CN115960555A CN202211693804.5A CN202211693804A CN115960555A CN 115960555 A CN115960555 A CN 115960555A CN 202211693804 A CN202211693804 A CN 202211693804A CN 115960555 A CN115960555 A CN 115960555A
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Abstract
The invention provides an arc-shaped masking tape and a preparation process thereof, wherein the masking tape comprises the following raw materials in parts by weight: 70-90 parts of natural rubber, 60-75 parts of synthetic rubber, 5-10 parts of carbon black, 10-15 parts of a moisture absorbent, 40-60 parts of polyurethane resin and 3-4 parts of an isocyanate crosslinking agent; the carbon black and the moisture absorbent are mixed and then mixed with other raw materials. The preparation process comprises the following steps: mixing carbon black and a moisture absorbent to obtain a first mixture; mixing the first mixture with natural rubber, synthetic rubber and polyurethane resin to obtain a second mixture; adding an isocyanate crosslinking agent into the second mixture, and uniformly stirring to obtain glue; and (3) uniformly coating the glue on the masking paper substrate to obtain the arc masking tape. According to the invention, the moisture absorbent is adsorbed on the carbon black with a large specific surface area, and then the carbon black attached with the moisture absorbent is mixed with other raw materials to prepare the arc-shaped masking tape which can still keep a dry state in a damp and hot environment, so that the cohesiveness of the masking tape is ensured.
Description
Technical Field
The invention relates to the technical field of masking tapes, in particular to an arc masking tape and a preparation process thereof.
Background
The beautiful grain paper is a high-tech paper for decoration and spraying, and is widely applied to indoor decoration, spray painting of household appliances and spraying of high-grade luxury cars. The color separation effect has clear and bright boundary lines and has arc line art effect, thereby bringing a new technical revolution to the decoration and spraying industries and enabling the industries to glow with new vitality.
The beautiful line paper is used only by sticking the beautiful line paper to a place needing to be concealed and tearing off the beautiful line paper after finishing spraying paint or coating materials, and the whole process is very simple. The masking tape is usually required to be used in a damp and hot environment, the strength and the hardness are lost due to hydrolysis, and even the masking tape is liquefied in severe cases, so that the bonding strength of the existing masking tape in the damp and hot environment is poor, and the use of masking paper is influenced.
Disclosure of Invention
The invention aims to provide an arc-shaped masking tape and a preparation process thereof, and solves the technical problem that the cohesiveness of the existing masking tape is poor in a damp and hot environment.
The invention provides an arc-shaped masking tape which comprises the following raw materials in parts by weight:
70-90 parts of natural rubber, 60-75 parts of synthetic rubber, 5-10 parts of carbon black, 10-15 parts of a moisture absorbent, 40-60 parts of polyurethane resin and 3-4 parts of an isocyanate crosslinking agent;
the carbon black and the moisture absorbent are mixed and then mixed with the natural rubber, the synthetic rubber, the polyurethane resin and the isocyanate crosslinking agent.
The arc-shaped masking tape provided by the invention has the following beneficial effects: the masking tape comprises carbon black and a moisture absorbent, wherein the moisture absorbent and the carbon black are mixed firstly, so that the moisture absorbent is adsorbed on the carbon black with a larger specific surface area, and then the carbon black attached with the moisture absorbent is mixed with other raw materials, so that the prepared arc masking tape can still keep a dry state in a damp and hot environment, the cohesiveness of the masking tape is ensured, and the product performance of the masking tape is improved.
In addition, the arc masking tape provided by the invention can also have the following additional technical characteristics:
the composite material comprises the following raw materials in parts by weight:
70 parts of natural rubber, 60 parts of synthetic rubber, 5 parts of carbon black, 10 parts of a moisture absorbent, 40 parts of polyurethane resin and 3 parts of an isocyanate crosslinking agent.
The composite material comprises the following raw materials in parts by weight:
80 parts of natural rubber, 70 parts of synthetic rubber, 8 parts of carbon black, 12 parts of a moisture absorbent, 50 parts of polyurethane resin and 3.5 parts of an isocyanate crosslinking agent.
The composite material comprises the following raw materials in parts by weight:
90 parts of natural rubber, 75 parts of synthetic rubber, 10 parts of carbon black, 15 parts of a moisture absorbent, 60 parts of polyurethane resin and 4 parts of an isocyanate crosslinking agent.
The invention also provides a preparation process of the arc-shaped masking tape, which comprises the following steps:
step 1: mixing carbon black and a moisture absorbent to obtain a first mixture;
step 2: mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin to obtain a second mixture;
and step 3: adding an isocyanate crosslinking agent into the second mixture, and uniformly stirring to obtain glue;
and 4, step 4: and uniformly coating the glue on a textured paper substrate to obtain the arc textured adhesive tape and rolling.
Wherein, the step 2 specifically comprises the following steps:
and mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin at the temperature of 50-55 ℃ to obtain a second mixture.
Wherein, the step 3 specifically comprises the following steps:
adding an isocyanate crosslinking agent into the second mixture, stirring for 30-50min at the temperature of 50-60 ℃, and uniformly stirring to obtain the glue.
The winding process of the step 4 is carried out by adopting a winding mechanism, and the winding mechanism comprises a winding roller, and a roller inlet rail, an arc lifting rail and a roller outlet rail which are symmetrically arranged at two ends of the winding roller and are sequentially connected and communicated; a roll shaft axially extends outwards from the centers of the two ends of the wind-up roll; the roll shafts can respectively pass through the symmetrical tracks and are guided by the tracks; rotating disk seats are also symmetrically arranged outside the two ends of the wind-up roll correspondingly to the circular arc lifting track; the rotary disk seat is concentric with the circular arc lifting track; the opposite disc surface of the rotating disc seat is vertical to the roller shaft, and shaft sleeves which can stretch out and draw back vertically to the disc surface and can rotate actively are annularly distributed on the opposite disc surface corresponding to the diameter of the circular arc lifting track; the shaft sleeve can be sleeved with the roll shaft to rotate in a linkage manner; an extrusion cutting mechanism is arranged above the arc lifting track corresponding to the topmost position of the arc lifting track; the extrusion cutting mechanism comprises a telescopic driving rod and a deformable extrusion plate arranged at the front end of the telescopic driving rod; a cutting blade is fixed at one end of the deformable extrusion plate close to the roller outlet track; the deformable extrusion plate comprises an elastic resin plate at the center and piezoelectric ceramic plates attached to two surfaces of the elastic resin plate; and a controller control circuit applies opposite electric fields to the piezoelectric ceramic plates on the two sides, so that the piezoelectric ceramic plates facing the circular arc lifting track are shortened along the circumferential direction of the circular arc lifting track, the piezoelectric ceramic plates backing to the circular arc lifting track are lengthened along the circumferential direction of the circular arc lifting track, the deformable extrusion plate is driven to bend towards one side of the circular arc lifting track, and the diameter of a curved surface formed by bending is the same as or similar to the diameter of the outer circumferential surface of the winding roller before winding.
The shaft sleeve comprises a slot and a plurality of channels which are uniformly distributed along the inner circumferential surface of the slot and axially extend along the shaft sleeve; interference blocks are respectively sleeved in the channels in a sliding manner; the interference block can slide along the radial direction of the shaft sleeve, and the sliding range is from the non-groove channel to the extending channel; the thickness of the interference block towards the front end of the shaft sleeve axis is gradually reduced to form a tooth part; a permanent magnet is fixed at the rear end of the interference block; an electromagnet is arranged behind the interference block and corresponds to the permanent magnet; the controller controls the power on and off of the electromagnet and the current direction so as to enable the front end of the repulsion interference block to extend out of the channel or to enable the front end of the attraction interference block to sink into the channel; the outer side surface of the interference block and the inner surface of the corresponding channel are respectively provided with a limiting block to prevent the interference block from falling off; the roller shaft is correspondingly provided with a meshing gear ring close to the outer end circumferential surface corresponding to the tooth part, and when the roller shaft is inserted into the slot and the interference block extends out of the channel, the tooth part is meshed and linked with the meshing gear ring.
The feeding roller track integrally inclines downwards along the feeding direction of the adhesive tape, the included angle between the joint and communication position of the feeding roller track and the arc lifting track and the highest point of the arc lifting track is ninety degrees, and a first limiting arc groove is arranged on the supporting surface of the joint and communication position; the roller outlet track is integrally inclined downwards along the feeding direction of the adhesive tape, and is connected and communicated with the arc track, and the included angle of the highest point of the arc lifting track is forty-five degrees; and a second limiting arc groove and a stop block are arranged on the supporting surface of the tail end of the roller outlet rail.
The number of the shaft sleeves on the disc surface of the rotating disc seat is eight; the inner ring of the outer end of the shaft sleeve is a bell mouth to guide the roller shaft to be inserted into the slot; the shaft sleeve is driven to stretch by a hydraulic telescopic rod with a sliding key; the hydraulic telescopic rods are driven to rotate by the first servo motors respectively; the rotating disk seat is driven to rotate by a second servo motor.
The winding method of the winding mechanism comprises the following steps:
(1) the empty rollers are thrown from the roller feeding tracks by a mechanical arm or an automatic roller conveying mechanism or a manual work, the roller feeding tracks are guided by the roller feeding tracks to translate and roll to first limiting arc grooves under the action of gravity, and the first limiting arc grooves are positioned on the arc lifting tracks;
(2) when the winding roller positioned at the topmost end of the arc lifting track is wound, the controller controls the hydraulic telescopic rod of the shaft sleeve positioned at the position corresponding to the first limiting arc groove to extend so as to drive the shaft sleeve to extend forwards, so that two ends of the roller shaft positioned at the first limiting arc groove are respectively inserted into the corresponding slots, and after the roller shaft is inserted into the slots, the controller controls the electromagnet to be electrified, and the interference block is ejected out of the channel and is meshed and linked with the meshing gear ring on the roller shaft through repulsion force;
(3) the controller drives the rotating disc seat to rotate by forty-five degrees through the second servo motor, and the winding roller to be wound is transferred to the joint and communication position of the arc lifting track and the roller outlet track; the first servo motor corresponding to the shaft sleeve stops, the corresponding electromagnet is electrified, the interference block is immersed into the channel through suction force, and the interference block and the meshing gear ring on the roll shaft are disengaged and linked; then controlling the corresponding hydraulic telescopic rod to retract, so that the sleeving relation between the roll shaft and the shaft sleeve is released, and the roll shaft to be rolled rolls along the roll outlet track under the action of gravity to a second limiting arc groove and is transferred by a manipulator or an automatic roll conveying mechanism or a manual work; in the process of rotating the rotating disc seat, the controller controls the telescopic driving rod to drive the deformable extrusion plate to be close to the highest point of the circular arc lifting track; when the winding roller which is to be wound is transferred to the position connected and communicated with the roller outlet track, the next empty winding roller is simultaneously transferred to the highest point of the circular arc lifting track, and because the adhesive tape is not broken at the moment and the position of the winding roller which is to be wound is lowered, the adhesive tape is partially supported and tensioned by the empty winding roller; the controller control circuit applies opposite electric fields to the piezoelectric ceramic plates on the two sides, so that the piezoelectric ceramic plates facing the circular arc lifting track are shortened along the circumferential direction of the circular arc lifting track, the piezoelectric ceramic plates facing away from the circular arc lifting track are lengthened along the circumferential direction of the circular arc lifting track to drive the deformable extrusion plates to bend towards one side of the circular arc lifting track, the diameter of a curved surface formed by bending is the same as or similar to the diameter of the outer circumferential surface of the winding roller before winding, and the curved surface is attached to the surface of the winding roller; the controller controls the corresponding first servo motor to drive the shaft sleeve to rotate, so that the empty winding roller is driven to rotate and wind; thus, the winding roller is continuously and automatically replaced.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the masking tape comprises carbon black and a moisture absorbent, wherein the moisture absorbent and the carbon black are mixed firstly, so that the moisture absorbent is adsorbed on the carbon black with a larger specific surface area, and then the carbon black attached with the moisture absorbent is mixed with other raw materials, so that the prepared arc masking tape can still keep a dry state in a damp and hot environment, the cohesiveness of the masking tape is ensured, and the product performance of the masking tape is improved.
2. The winding mechanism can realize automatic roll change, and the continuous feeding process of the adhesive tape cannot be influenced in the roll change process, so that not only is the manpower saved, but also the processes of manufacturing, coating, drying and the like of a base material in the prior art can be continuously and continuously carried out, and the production efficiency is obviously improved.
3. The winding mechanism utilizes the ingenious design of the roller inlet rail, the arc lifting rail and the roller outlet rail, the arc lifting rail and the rotating disk seat are skillfully combined together, the position and shape characteristics of each rail and the movement and driving design of the winding roller are utilized, the roller inlet and the positioning of the winding roller are realized by fully utilizing the gravity action, the synchronous lifting and the descending of the empty winding roller and the full winding roller are realized, so that the empty winding roller is lifted to the winding position synchronously, and the full winding roller is transferred to the roller outlet position accurately, smoothly and continuously; the shaft sleeve can be simply, conveniently and accurately inserted and matched with the roll shaft, and the automatic detachable linkage and release of the shaft sleeve and the roll shaft can be realized by utilizing the electromagnet and the interference block; in addition, still ingenious design extrusion cutting mechanism, not only can accurately be according to setting for the opportunity and cut off the sticky tape, accomplish the cutting apart of empty wind-up roll and full wind-up roll, utilize piezoceramics's characteristics moreover, extrude the sticky tape of disconnection on empty wind-up roll when the sticky tape is cut off, and make the sticky tape and the area of contact greatly increased of empty wind-up roll, improve sticky tape adhesion, thereby guarantee the sticky tape can not drop because adhesion is less than the sticky tape pulling force when beginning the rolling, the smooth when guaranteeing that empty wind-up roll just begins the rolling goes on.
Drawings
FIG. 1 is a schematic view of the process of the present invention;
FIG. 2 is a schematic view of the structure and state of the winding mechanism during automatic roll change;
FIG. 3 is a schematic view of the structure and state of the winding mechanism during continuous winding after automatic roll change;
FIG. 4 is a schematic structural view of the deformable squeeze plate of the present invention when undeformed;
FIG. 5 is a partial schematic view of the deformable extrusion plate deforming to cause the adhesive tape to be extruded and adhered to an empty wind-up roll when the adhesive tape is cut off in accordance with the present invention;
FIG. 6 is a schematic view of the arrangement of the rotating disk seat and the sleeve of the present invention;
FIG. 7 is a schematic cross-sectional view of the bushing of the present invention;
the reference numbers in the figures illustrate:
11. a wind-up roll; 111. a roll shaft; 12. a roll feed track; 13. a circular arc lifting track; 131. a first limit arc groove; 14. a roll out track; 141. a second limiting arc groove; 142. a stop block; 15. rotating the disc seat; 151. a shaft sleeve; 152. a slot; 153. a channel; 154. an interference block; 156. an electromagnet; 157. a tooth portion; 16. a telescopic driving rod; 17. a deformable squeeze plate; 171. an elastic resin plate; 172. a piezoelectric ceramic plate; 18. and (4) cutting a blade.
Detailed Description
In order that the objects, features and advantages of the invention will be more readily understood, reference will now be made in detail to the following description of the preferred embodiments of the invention. In the description, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be employed, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
With reference to figure 1 of the drawings,
example 1
The invention provides an arc-shaped masking tape which comprises the following raw materials in parts by weight:
70 parts of natural rubber, 60 parts of synthetic rubber, 5 parts of carbon black, 10 parts of a moisture absorbent, 40 parts of polyurethane resin and 3 parts of an isocyanate crosslinking agent;
the carbon black and the moisture absorbent are mixed and then mixed with the natural rubber, the synthetic rubber, the polyurethane resin and the isocyanate crosslinking agent.
The invention also provides a preparation process of the arc-shaped masking tape, which comprises the following steps:
step 1: mixing carbon black and a moisture absorbent to obtain a first mixture;
step 2: mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin to obtain a second mixture;
and mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin at the temperature of 50 ℃ to obtain a second mixture.
And step 3: adding an isocyanate crosslinking agent into the second mixture, and uniformly stirring to obtain glue;
and adding an isocyanate crosslinking agent into the second mixture, stirring for 30min at the temperature of 50 ℃, and uniformly stirring to obtain the glue.
And 4, step 4: and uniformly coating the glue on the textured paper substrate to obtain the arc-shaped textured adhesive tape.
Example 2
The invention provides an arc-shaped masking tape which comprises the following raw materials in parts by weight:
80 parts of natural rubber, 70 parts of synthetic rubber, 8 parts of carbon black, 12 parts of a moisture absorbent, 50 parts of polyurethane resin and 3.5 parts of an isocyanate crosslinking agent;
the carbon black and the moisture absorbent are mixed and then mixed with the natural rubber, the synthetic rubber, the polyurethane resin and the isocyanate crosslinking agent.
The invention also provides a preparation process of the arc-shaped masking tape, which comprises the following steps:
step 1: mixing carbon black and a moisture absorbent to obtain a first mixture;
and 2, step: mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin to obtain a second mixture;
and mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin at the temperature of 52 ℃ to obtain a second mixture.
And step 3: adding an isocyanate crosslinking agent into the second mixture, and uniformly stirring to obtain glue;
and adding an isocyanate crosslinking agent into the second mixture, stirring for 40min at the temperature of 55 ℃, and uniformly stirring to obtain the glue.
And 4, step 4: and uniformly coating the glue on the textured paper substrate to obtain the arc-shaped textured adhesive tape.
Example 3
The invention provides an arc-shaped masking tape which comprises the following raw materials in parts by weight:
90 parts of natural rubber, 75 parts of synthetic rubber, 10 parts of carbon black, 15 parts of a moisture absorbent, 60 parts of polyurethane resin and 4 parts of an isocyanate crosslinking agent;
the carbon black and the moisture absorbent are mixed and then mixed with the natural rubber, the synthetic rubber, the polyurethane resin and the isocyanate crosslinking agent.
The invention also provides a preparation process of the arc-shaped masking tape, which comprises the following steps:
step 1: mixing carbon black and a moisture absorbent to obtain a first mixture;
step 2: mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin to obtain a second mixture;
and mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin at the temperature of 55 ℃ to obtain a second mixture.
And step 3: adding an isocyanate crosslinking agent into the second mixture, and uniformly stirring to obtain glue;
adding an isocyanate crosslinking agent into the second mixture, stirring for 50min at the temperature of 50-60 ℃, and uniformly stirring to obtain the glue.
And 4, step 4: and uniformly coating the glue on the textured paper substrate to obtain the arc-shaped textured adhesive tape.
Referring to fig. 2 to 7, the winding mechanism includes a winding roller 11, and a roller inlet rail 12, an arc lifting rail 13 and a roller outlet rail 14 symmetrically disposed at two ends of the winding roller 11 and sequentially connected and communicated with each other; the centers of two ends of the winding roller 11 extend outwards in the axial direction to form roller shafts 111; the roller shafts 111 may pass through the symmetrical rails, respectively, and be guided by the rails; corresponding to the arc lifting rail 13, rotating disc seats 15 are symmetrically arranged outside two ends of the wind-up roll 11; the rotating disk seat 15 is concentric with the circular arc lifting track 13; the relative disk surface of the rotating disk seat 15 is vertical to the roller shaft 111, and a shaft sleeve 151 which can extend and retract vertically to the disk surface and can rotate actively is annularly distributed on the relative disk surface corresponding to the diameter of the arc lifting track 13; the shaft sleeve 151 can be sleeved with the roller shaft 111 to rotate in a linkage manner; an extrusion cutting mechanism is arranged above the arc lifting track 13 corresponding to the topmost position of the arc lifting track 13; the extrusion cutting mechanism comprises a telescopic driving rod 16 and a deformable extrusion plate 17 arranged at the front end of the telescopic driving rod 16; a cutting blade 18 is fixed at one end of the deformable pressing plate 17 close to the roller outlet rail 14; the deformable pressing plate 17 includes an elastic resin plate 171 at the center and piezoelectric ceramic plates 172 attached to both sides of the elastic resin plate 171; a controller control circuit applies opposite electric fields to the piezoelectric ceramic plates 172 on both sides, so that the piezoelectric ceramic plate 172 facing the circular arc lifting rail 13 is shortened in the circumferential direction of the circular arc lifting rail 13, and the piezoelectric ceramic plate 172 facing away from the circular arc lifting rail 13 is lengthened in the circumferential direction of the circular arc lifting rail 13, to drive the deformable pressing plate 17 to bend toward the circular arc lifting rail 13 side, with the diameter of the curved surface formed by bending being the same as or similar to the diameter of the outer circumferential surface of the take-up roller 11 before winding.
Specifically, the shaft sleeve 151 includes a slot 152 and a plurality of grooves 153 uniformly distributed along an inner circumferential surface of the slot 152 and extending axially along the shaft sleeve 151; interference blocks 154 are respectively sleeved in the channels 153 in a sliding manner; the interference block 154 can slide radially along the sleeve 151, ranging from the recessed channel 153 to the protruding channel 153; the interference block 154 tapers toward the front end of the shaft center of the shaft sleeve 151 to form a tooth part 157; a permanent magnet is fixed at the rear end of the interference block 154; an electromagnet 156 is arranged behind the interference block 154 and corresponds to the permanent magnet; the controller controls the electromagnet 156 to be switched on and off and the current direction so as to repel the front end of the interference block 154 out of the channel 153 or attract the front end of the interference block 154 to sink into the channel 153; the outer side surface of the interference block 154 and the inner surface of the corresponding channel 153 are respectively provided with a limiting block to prevent the interference block 154 from falling off; the roller shaft 111 is provided with a meshing gear ring corresponding to the tooth portion 157 corresponding to the circumferential surface close to the outer end, and when the roller shaft 111 is inserted into the slot 152 and the interference block 154 extends out of the channel 153, the tooth portion 157 is in meshing linkage with the meshing gear ring.
Specifically, the roller feeding track 12 is integrally inclined downwards along the feeding direction of the adhesive tape, the included angle between the joint and communication position of the roller feeding track 12 and the highest point of the arc lifting track 13 is ninety degrees, and a first limiting arc groove 131 is arranged on the supporting surface of the joint and communication position; the roll outlet rail 14 is integrally inclined downwards along the feeding direction of the adhesive tape, and is connected and communicated with the arc rail 13, and the included angle of the highest point of the arc lifting rail 13 is forty-five degrees; the supporting surface of the tail end of the roller outlet rail 14 is provided with a second limit arc groove 141 and a stop block 142.
Specifically, the number of the shaft sleeves 151 evenly distributed on the disk surface of the rotating disk seat 15 is eight; the inner ring of the outer end of the shaft sleeve 151 is flared to guide the roller shaft 111 to be inserted into the slot 152; further, the shaft sleeve 151 is driven to extend and retract by a hydraulic telescopic rod with a sliding key; the hydraulic telescopic rods are driven to rotate by the first servo motor respectively; the rotating disk seat 15 is driven to rotate by a second servo motor.
The winding method of the winding mechanism comprises the following steps:
(1) the empty rollers are thrown in from the roller feeding rail 12 by a manipulator or an automatic roller conveying mechanism or manually, the roller feeding rail 12 is guided by the roller feeding rail 12 to translate and roll to a first limiting arc groove 131 under the action of gravity, and the first limiting arc groove 131 is positioned on the arc lifting rail 13;
(2) when the wind-up roll 11 positioned at the topmost end of the arc lifting track 13 is wound, the controller controls the hydraulic telescopic rod of the shaft sleeve 151 positioned at the position corresponding to the first limiting arc groove 131 to extend so as to drive the shaft sleeve 151 to extend forwards, so that two ends of the roller shaft 111 positioned at the first limiting arc groove 131 are respectively inserted into the corresponding slots 152, and after the roller shaft 111 is inserted into the slots 152, the controller controls the electromagnet 156 to be electrified, and the interference block 154 push-out channel 153 is meshed and linked with the meshing gear ring on the roller shaft 111 through repulsion force;
(3) referring to fig. 2, the controller drives the rotating disk seat 15 to rotate by forty-five degrees through the second servo motor, so that the wind-up roll 11 to be wound is transferred to the joint and communication position of the arc lifting track 13 and the roll-out track 14; the first servo motor corresponding to the shaft sleeve 151 stops, the corresponding electromagnet 156 is electrified, and the interference block 154 is immersed in the groove channel 153 through suction force and is disengaged from the meshing gear ring on the roller shaft 111 to be linked; then, the corresponding hydraulic telescopic rods are controlled to retract, so that the sleeving relation between the roll shaft 111 and the shaft sleeve 151 is released, the roll shaft 111 to be rolled falls to the second limiting arc groove 141 along the roll outlet rail 14 under the action of gravity, and is transferred by a manipulator or an automatic roll conveying mechanism or manually; in the process of rotating the rotating disk seat 15, the controller controls the telescopic driving rod 16 to drive the deformable extrusion plate 17 to be close to the highest point of the circular arc lifting track 13; when the winding roller 11 which is to be wound is transferred to the joint and communication position with the roller outlet rail 14, the next empty winding roller 11 is simultaneously transferred to the highest point of the arc lifting rail 13, and because the adhesive tape is not broken at the moment and the position of the winding roller 11 which is to be wound is lowered, the adhesive tape is partially tensioned by the empty winding roller 11; the controller control circuit applies opposite electric fields to the piezoelectric ceramic plates 172 on the two sides, so that the piezoelectric ceramic plates 172 facing the circular arc lifting track 13 are shortened along the circumferential direction of the circular arc lifting track 13, the piezoelectric ceramic plates 172 facing away from the circular arc lifting track 13 are lengthened along the circumferential direction of the circular arc lifting track 13, so as to drive the deformable pressing plate 17 to bend towards one side of the circular arc lifting track 13, the diameter of a curved surface formed by bending is the same as or similar to the diameter of the outer circumferential surface of the winding roller 11 before winding, and the curved surface is attached to the surface of the winding roller 11, in the process, the cutting blade 18 bends downwards along with the deformable pressing plate 17 so that a blade aligns with a knife edge and presses the adhesive tape to cut the adhesive tape, and meanwhile, the part of the cut adhesive tape on one side of the empty winding roller 11 is extruded and adhered to the surface of the empty winding roller 11 by the deformable pressing plate 17 which is bent and deformed; referring to fig. 3, the controller controls the corresponding first servo motor to drive the shaft sleeve 151 to rotate, so as to drive the empty wind-up roll 11 to rotate and wind up; thus completing the uninterrupted automatic replacement of the wind-up roll 11.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The arc-shaped masking tape is characterized by comprising the following raw materials in parts by weight:
70-90 parts of natural rubber, 60-75 parts of synthetic rubber, 5-10 parts of carbon black, 10-15 parts of a moisture absorbent, 40-60 parts of polyurethane resin and 3-4 parts of an isocyanate crosslinking agent;
the carbon black and the moisture absorbent are mixed and then mixed with the natural rubber, the synthetic rubber, the polyurethane resin and the isocyanate crosslinking agent.
2. The arc-shaped masking tape according to claim 1, comprising the following raw materials in parts by weight:
70 parts of natural rubber, 60 parts of synthetic rubber, 5 parts of carbon black, 10 parts of a moisture absorbent, 40 parts of polyurethane resin and 3 parts of an isocyanate crosslinking agent.
3. The arc-shaped masking tape according to claim 1, comprising the following raw materials in parts by weight:
80 parts of natural rubber, 70 parts of synthetic rubber, 8 parts of carbon black, 12 parts of a moisture absorbent, 50 parts of polyurethane resin and 3.5 parts of an isocyanate crosslinking agent.
4. The arc-shaped masking tape according to claim 1, characterized by comprising the following raw materials in parts by weight:
90 parts of natural rubber, 75 parts of synthetic rubber, 10 parts of carbon black, 15 parts of a moisture absorbent, 60 parts of polyurethane resin and 4 parts of an isocyanate crosslinking agent.
5. A preparation process of the arc masking tape according to any one of claims 1 to 4, which is characterized by comprising the following steps:
step 1: mixing carbon black and a moisture absorbent to obtain a first mixture;
and 2, step: mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin to obtain a second mixture;
and 3, step 3: adding an isocyanate crosslinking agent into the second mixture, and uniformly stirring to obtain glue;
and 4, step 4: and uniformly coating the glue on a textured paper substrate to obtain the arc textured adhesive tape and rolling.
6. The preparation process of the arc-shaped masking tape according to claim 5, wherein the step 2 specifically comprises:
mixing the first mixture with the natural rubber, the synthetic rubber and the polyurethane resin at the temperature of 50-55 ℃ to obtain a second mixture; adding an isocyanate crosslinking agent into the second mixture, stirring for 30-50min at the temperature of 50-60 ℃, and uniformly stirring to obtain the glue.
7. The process for preparing the arc masking tape as claimed in claim 5, wherein: the winding process in the step 4 is carried out by adopting a winding mechanism, wherein the winding mechanism comprises a winding roller (11) and a roller inlet rail (12), an arc lifting rail (13) and a roller outlet rail (14) which are symmetrically arranged at two ends of the winding roller (11) and are sequentially communicated; a roll shaft (111) axially extends outwards from the centers of two ends of the winding roll (11); the roll shafts (111) can respectively pass through the symmetrical tracks and are guided by the tracks; corresponding to the arc lifting rail (13), rotating disc seats (15) are symmetrically arranged outside two ends of the winding roller (11); the rotating disc seat (15) is concentric with the circular arc lifting track (13); the opposite disc surface of the rotating disc seat (15) is vertical to the roller shaft (111), and shaft sleeves (151) which can stretch out and draw back vertically to the disc surface and can rotate actively are annularly distributed on the opposite disc surface corresponding to the diameter of the circular arc lifting track (13); the shaft sleeve (151) can be sleeved with the roller shaft (111) to rotate in a linkage manner; an extrusion cutting mechanism is arranged above the arc lifting track (13) corresponding to the topmost position of the arc lifting track (13); the extrusion cutting mechanism comprises a telescopic driving rod (16) and a deformable extrusion plate (17) arranged at the front end of the telescopic driving rod (16); a cutting blade (18) is fixed at one end of the deformable squeezing plate (17) close to the roller outlet rail (14); the deformable pressing plate (17) comprises an elastic resin plate (171) at the center and piezoelectric ceramic plates (172) attached to two surfaces of the elastic resin plate (171); a controller control circuit applies opposite electric fields to the piezoelectric ceramic plates (172) on the two sides, so that the piezoelectric ceramic plates (172) facing the circular arc lifting track (13) are shortened along the circumferential direction of the circular arc lifting track (13), the piezoelectric ceramic plates (172) opposite to the circular arc lifting track (13) are lengthened along the circumferential direction of the circular arc lifting track (13), the deformable extrusion plates (17) are driven to bend towards one side of the circular arc lifting track (13), and the diameter of a curved surface formed by bending is the same as or close to the diameter of the outer circumferential surface of the winding roller (11) before winding.
8. The process for preparing the arc masking tape as claimed in claim 7, wherein: the shaft sleeve (151) comprises a slot (152) and a plurality of grooves (153) which are uniformly distributed along the inner circumferential surface of the slot (152) and axially extend along the shaft sleeve (151); interference blocks (154) are respectively sleeved in the channels (153) in a sliding manner; the interference block (154) can slide along the shaft sleeve (151) in the radial direction, and the sliding range is from the non-groove channel (153) to the protruding channel (153); the thickness of the front end of the interference block (154) facing the axle center of the shaft sleeve (151) is gradually reduced to form a tooth part (157); a permanent magnet is fixed at the rear end of the interference block (154); an electromagnet (156) is arranged behind the interference block (154) and corresponds to the permanent magnet; the controller controls the electromagnet (156) to be switched on and off and the current direction so as to repel the front end of the interference block (154) from extending out of the channel (153) or attract the front end of the interference block (154) to sink into the channel (153); the outer side surface of the interference block (154) and the inner surface of the corresponding channel (153) are respectively provided with a limiting block to prevent the interference block (154) from falling off; the roller shaft (111) is correspondingly provided with a meshing gear ring close to the outer end circumferential surface corresponding to the tooth part (157), and when the roller shaft (111) is inserted into the insertion groove (152) and the interference block (154) extends out of the groove channel (153), the tooth part (157) is meshed and linked with the meshing gear ring.
9. The process for preparing the arc masking tape as claimed in claim 8, wherein: the roll feeding track (12) is integrally inclined downwards along the feeding direction of the adhesive tape, the included angle between the joint and communication position of the roll feeding track (12) and the arc lifting track (13) and the highest point of the arc lifting track (13) is ninety degrees, and a first limiting arc groove (131) is arranged on the supporting surface of the joint and communication position; the roller outlet track (14) is integrally inclined downwards along the feeding direction of the adhesive tape, and is connected and communicated with the arc track (13) to form a forty-five-degree included angle at the highest point of the arc lifting track (13); a second limit arc groove (141) and a stop block (142) are arranged on the supporting surface of the tail end of the roller outlet rail (14); the number of the shaft sleeves (151) on the disc surface of the rotary disc seat (15) is eight; an inner ring at the outer end of the shaft sleeve (151) is a bell mouth to guide the roller shaft (111) to be inserted into the slot (152); the shaft sleeve (151) is driven to stretch by a hydraulic telescopic rod with a sliding key; the hydraulic telescopic rods are driven to rotate by the first servo motors respectively; the rotating disk seat (15) is driven to rotate by a second servo motor.
10. The process for preparing the arc-shaped masking tape according to claim 9, wherein: the winding method of the winding mechanism comprises the following steps:
(1) the empty rollers are thrown in from the roller feeding rails (12) by using a manipulator or an automatic roller conveying mechanism or manually, the roller feeding rails (12) are guided by the roller feeding rails (12) to move and roll to a first limiting arc groove (131) under the action of gravity, and the first limiting arc groove (131) is positioned on the arc lifting rails (13);
(2) when the winding roller (11) located at the topmost end of the arc lifting track (13) winds, the controller controls the hydraulic telescopic rod of the shaft sleeve (151) located at the position corresponding to the first limiting arc groove (131) to extend so as to drive the shaft sleeve (151) to extend forwards, so that the two ends of the roller shaft (111) located at the first limiting arc groove (131) are respectively inserted into the corresponding insertion grooves (152), and after the roller shaft (111) is inserted into the insertion grooves (152), the controller controls the electromagnet (156) to be electrified, and the repulsion force is used for enabling the ejection channel (153) of the interference block (154) to be meshed and linked with the meshing gear ring on the roller shaft (111);
(3) the controller drives the rotating disc seat (15) to rotate for forty-five degrees through the second servo motor, and the winding roller (11) to be wound is transferred to the joint and communication position of the arc lifting track (13) and the roller outlet track (14); the first servo motor corresponding to the shaft sleeve (151) stops, the corresponding electromagnet (156) is electrified, and the interference block (154) is immersed in the groove channel (153) through suction force and is disengaged and linked with the meshing gear ring on the roller shaft (111); then, the corresponding hydraulic telescopic rods are controlled to retract, so that the sleeving relation between the roll shafts (111) and the shaft sleeves (151) is removed, the roll shafts (111) to be wound roll down to the second limiting arc groove (141) along the roll outlet rail (14) under the action of gravity, and the roll shafts are transferred by a manipulator or an automatic roll conveying mechanism or manually; in the rotating process of the rotating disc seat (15), the controller controls the telescopic driving rod (16) to drive the deformable extrusion plate (17) to be close to the highest point of the circular arc lifting track (13); when the winding roller (11) which is to be wound is transferred to the joint and communication position with the roller outlet track (14), the next empty winding roller (11) is simultaneously transferred to the highest point of the arc lifting track (13), and as the adhesive tape is not broken at the moment and the position of the winding roller (11) which is to be wound is lowered, the adhesive tape is partially tensioned by the empty winding roller (11); the controller control circuit applies opposite electric fields to the piezoelectric ceramic plates (172) on the two sides, so that the piezoelectric ceramic plates (172) facing the circular arc lifting track (13) are shortened along the circumferential direction of the circular arc lifting track (13), the piezoelectric ceramic plates (172) opposite to the circular arc lifting track (13) are lengthened along the circumferential direction of the circular arc lifting track (13), and the deformable pressing plate (17) is driven to bend towards one side of the circular arc lifting track (13), the diameter of a curved surface formed by bending is the same as or close to the diameter of the outer circumferential surface of the winding roller (11) before winding and is attached to the surface of the winding roller (11), in the process, the cutting blade (18) is bent downwards along with the deformable pressing plate (17) so that a blade is aligned with the blade and presses the adhesive tape to cut off, and meanwhile, the parts of the cut adhesive tape on one side of the empty winding roller (11) are pressed and attached to the surface of the empty winding roller (11) by the deformable pressing plate (17) which is bent and deformed; the controller controls the corresponding first servo motor to drive the shaft sleeve (151) to rotate, so that the empty winding roller (11) is driven to rotate and wind; thus, the uninterrupted automatic replacement of the winding roller (11) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211693804.5A CN115960555A (en) | 2022-12-28 | 2022-12-28 | Arc-shaped masking tape and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211693804.5A CN115960555A (en) | 2022-12-28 | 2022-12-28 | Arc-shaped masking tape and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115960555A true CN115960555A (en) | 2023-04-14 |
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ID=87362990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211693804.5A Pending CN115960555A (en) | 2022-12-28 | 2022-12-28 | Arc-shaped masking tape and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115960555A (en) |
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2022
- 2022-12-28 CN CN202211693804.5A patent/CN115960555A/en active Pending
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