31results about How to "Quick tear" patented technology

The invention discloses a virtually-cutting and coiling integration machine for producing a nail-beautifying aluminium foil. The virtually-cutting and coiling integration machine comprises a rack, wherein an uncoiling roll is arranged at the feeding end of the rack; a coiling roll is arranged at the discharging end of the rack; a knife rest is arranged at the middle part of the rack; a knife head is arranged on the knife rest by a first cylinder; a plurality of convex parts are uniformly arranged on the knife head; piercing cones are arranged at the bottoms of the convex parts; auxiliary knife edges are arranged at the two sides of the piercing cones; elastic pressing pieces are arranged at the two sides of the convex parts; the bottom parts of the adjacent elastic pressing pieces are mutually contacted; the rack is provided with two cushion plates by connecting shafts; second cylinders are connected at the bottom parts of the cushion plates; the cushion plates are rotated around the connecting shafts under the driving of the second cylinders; the plane for rotation of the cushion plates is vertical to the plane for up-down movement of the knife head; and the two cushion plates are symmetrically arranged by adopting the position of the knife head as a central line. The virtually-cutting and coiling integration machine disclosed by the invention has the advantages that the defects of the prior art can be improved and the accuracy for cutting-point control is improved.

The invention discloses a bio-based rubber sole. The bio-based rubber sole comprises the following components in parts by weight: 40 parts of bio-based solution polymerized styrene-butadiene rubber, 16 to 24 parts of a bio-based ethylene propylene diene monomer, 38 to 46 parts of natural rubber, 35 to 40 parts of white carbon black, 2.1 to 2.8 parts of a silane coupling agent, 0.7 to 1.1 parts of stearic acid, 0.6 to 0.9 part of an anti-aging agent, 1.9 to 2.5 parts of an active agent, 3.2 to 3.8 parts of zinc oxide, 0.7 to 1.5 parts of polyethylene wax, 1.0 to 1.8 parts of an anti-frosting agent, 0.9 to 1.4 parts of tackifying resin, 1.2 to 1.8 parts of vulcanization accelerator, and 1.9 to 2.3 parts of insoluble sulfur. When the bio-based solution polymerized styrene-butadiene rubber is prepared and polymerized, carboxylated solution polymerized styrene-butadiene rubber, zinc oxide, stearic acid and epoxidized soybean oil are internally mixed in an internal mixer to construct an ester group cross-linked network structure, and the advantage that oil is not separated out is achieved. Besides, during vulcanization molding, ion pairs formed by zinc ions and carboxyl groups in a rubber material can be used as reinforcing points, so a crosslinking degree is improved, and the mechanical property of a bio-based rubber outsole is improved.

The invention provides a method for relieving pressure of surrounding rock of a rock burst roadway. The method comprises the following steps of: horizontally arranging a drill hole in each of the upper parts on the left side and the right side of the roadway; detecting the drill holes by using a drill hole penetrometer to obtain pressure conditions and displacement information data of different depths; analyzing the stress conditions of the upper parts at different depths by using a data acquisition instrument according to the obtained information data of pressure and displacement in the drillholes, and determining the pressure relieving depth of a kerf; arranging a row of drill holes in the middle of the vertical surfaces of the upper parts on the left side and the right side of the roadway at certain intervals according to the obtained kerf depth; operating the drill holes in a bottom plate of the roadway by using an electric pulse device to perform fracturing operation; after an expected effect is achieved, taking out the electric pulse device, and performing impact operation of the next adjacent drill hole until the fracturing operation of the upper parts of the whole roadwayis completely finished; finishing the fracturing operation of the drill holes in the other side of the bottom plate of the roadway; and grouting and reinforcing the fractured surfaces of the upper parts of the roadway. The method is high in detection precision, high in kerf speed and good in pressure relieving effect.

The invention relates to a dual-response nanodrug delivery system loaded with antitumor drugs for tumor therapy and a preparation method of the nanodrug delivery system. Sodium alginate modified with11-mercaptodecanoic acid (MUA) is used as a frame, CaCO3 and antitumor drugs are coprecipitated on the frame of sodium alginate by in-situ mineralization, and through ultrasonic vibration, sulfhydrylgroups on the modified sodium alginate are promoted to be crosslinked to prepare a dual-response nanodrug delivery carrier of pH and redox. According to the present invention, in vivo and in vitro drug release, cytotoxicity experiments and animal experiments prove that nanoparticles based on CaCO3 have good tumor selectivity and the ability of regulating pH in tumor cells, and can kill and wound tumor cells while reducing toxic and side effects on normal cells and organisms. The nanodrug delivery carrier provided by the invention is expected to be used for tumor therapy, and has a good application prospect in the field of biomedicine.

The invention discloses an anti-slippery bio-based rubber shoe sole and a preparation method and a mold thereof. The anti-slippery bio-based rubber shoe sole comprises the following components in parts by weight: 50 parts of bio-based solution polymerized styrene-butadiene rubber, 26 to 34 parts of carboxylated nitrile rubber, 16 to 24 parts of epoxidized natural rubber, 35 to 50 parts of white carbon black, 2.1 to 2.8 parts of a silane coupling agent, 1.2 to 1.5 parts of stearic acid, 1.0 to 1.3 parts of an anti-aging agent, 1.9 to 2.5 parts of an active agent, 4 to 6 parts of zinc oxide, 1.2 to 1.5 parts of polyethylene wax, 1.4 to 1.8 parts of an anti-frosting agent, 1.3 to 1.7 parts of tackifying resin, 1.0 to 1.2 parts of a vulcanization accelerator, and 1.1 to 1.5 parts of insoluble sulfur. When the bio-based solution polymerized styrene-butadiene rubber is prepared and polymerized, carboxylated solution polymerized styrene-butadiene rubber, zinc oxide, stearic acid and epoxidized soybean oil are internally mixed in an internal mixer to construct an ester group cross-linked network structure, and the advantage that oil is not separated out is achieved. Besides, during vulcanization molding, ion pairs formed by zinc ions and carboxyl group in a rubber material can be used as reinforcing points, so a crosslinking degree is improved, and the mechanical properties of a bio-based rubber outsole are improved.

The invention provides a stope face hard roof ground pulse roof cutting method. The gob-side entry stope face hard roof ground pulse roof cutting method comprises the steps that a vertical borehole isformed in the top of a roadway, and the bottom of the borehole extends into a hard rock stratum; a borehole penetrometer is used for detecting the borehole, and the pressure of the hard rock stratumon roadway surrounding rock is judged in combination with the pressure condition; L-shaped boreholes are formed over coal pillars on the two sides of a stope face correspondingly, the vertical sections of the boreholes extend downwards from the ground to the 1/2 position of the hard rock stratum over the coal pillars, and the horizontal sections of the boreholes extend to the boundary of the hardrock stratum needing to be subjected to roof cutting in the advancing direction of the working face; hole openings of the L-shaped boreholes are sealed by using a hole packer, water injection operation is conducted through a waterway connected to a water injection port, a power supply is switched on, and fracturing is conducted by using shock waves; and the shock wave fracturing range is observedthrough a displayer connected to a controller till the two sides of the hard rock stratum in the advancing direction of the whole working face are fractured and cut off at the same time. According tothe gob-side entry stope face hard roof ground pulse roof cutting method, deviation is not prone to occurring in the detection process, the detection precision is high, meanwhile, the roof cutting speed is high, and safety is good.

The invention discloses a balloon tearing device and an aerostat with the same. The balloon tearing device comprises a high-temperature alloy wire, a stretching part and an external power source, and the high-temperature alloy wire, the stretching part and the external power source are arranged on a balloon. The high-temperature alloy wire is arranged on the outside of the balloon, two ends of the high-temperature alloy wire are connected to the tail end of the stretching part, the stretching part in a stretching state enables fitting of the high-temperature alloy wire on the outside of the balloon, the head end of the stretching part is fixed to the balloon, the high-temperature alloy wire is connected with the external power source, and after the external power source is electrified, the high-temperature alloy wire is heated to tear the balloon by burning. The balloon tearing device and the aerostat with the same are simple in structure and convenient to use, the balloon of the aerostat in an emergency state can be quickly torn when the high-temperature alloy wire is electrified, and normality in operation of the aerostat under a normal condition is unaffected.

The invention relates to the field of asphalt, in particular to a repeated bending type asphalt block treatment device. The technical problem of the invention is to provide a repeated bending type asphalt block treatment device. According to the technical implementation scheme, the repeated bending type asphalt block treatment device comprises a mounting connecting bottom plate, a machine tool plate, an operation control screen, a tool box, a bending separation system and the like; the lower portion of the machine tool plate is welded to the mounting connecting bottom plate. According to the device, the waste asphalt plate is repeatedly bent, the bending degree and range are gradually expanded, the adhered aged geotextile is forced to be gradually separated from the surface of the asphaltblock; meanwhile, asphalt particles adhered to the outer side surface of the geotextile are shifted and separated; and the asphalt can be quickly torn when the waste asphalt is pretreated by utilizingthe telescopic spring conical thorns, so that the effect of the treatment process of waste asphalt recovery is simplified.

The invention provides an easy-to-tear film packing machine used for packing a square packing box. The easy-to-tear film packing machine comprises a feeding mechanism, a first attaching mechanism, a film packing mechanism, a die-cutting mechanism and a discharging mechanism which are sequentially arranged; the feeding mechanism conveys the packing box to the accessory attaching position; the firstattaching mechanism provides a first attaching piece with viscidity, and the face with viscidity of the first attaching piece is attached to one surface of the packing box; the film packing mechanismenables the six surfaces of the packing box to be wrapped with the film; and the die-cutting mechanism conducts die-cutting on the film corresponding to the position, attached with the first attaching piece, of the packing box to form a damage part with the area being less than or equal to the area of the first attaching piece, and the damage part is conveyed out from the discharging mechanism. The invention further provides an easy-to-tear film packing process.

The invention discloses a pressing type anti-theft opening cover. The cover comprises a cover body, an anti-theft ring and an easy-to-tear film; the cover body is provided with a pressing opening anda seal breaking structure, wherein the seal breaking structure is located on the inner side of the cover body and connected with the inner side of the closed end of the cover body, and the pressing opening is located in the closed end of the cover body and corresponds to the seal breaking structure; the anti-theft ring is connected with the open end of the cover body; and the easy-to-tear film ispasted outside the closed end of the cover body and seals the pressing opening. The invention further discloses a bottle. The bottle comprises a bottle body, a sealing film and the pressing type anti-theft opening cover. According to the pressing type anti-theft opening cover, the sealing film is broken and the broken opening is gradually expanded through the seal breaking structure arranged in the pressing cover body in a circular motion mode, so that the bottle is opened, the operation is simple and rapid, other bottle opening tools are not needed, and the sanitary condition can be guaranteed; and meanwhile, the bottle has the characteristics of being convenient and fast to open, sanitary and reliable.

The invention discloses a straw quick crushing device for agricultural production.The straw quick crushing device comprises a horizontally arranged crusher for straw crushing and a conveying fan.An output port of the crusher is connected with an input port of the conveying fan.The crusher comprises a horizontally arranged supporting frame.A crusher machine base and a motor are arranged on the upper end face of the supporting frame side by side, the upper end of the crusher machine base is provided with an arc end cover, the arc end cover is provided with a feeding port in the horizontal direction, and a crushing shaft is arranged between the crusher machine base and the arc end cover.The crushing shaft is fixed to the crusher machine base through a bearing block, a driving wheel is arranged at one end of the crushing shaft driving wheel located on the same side of a motor output shaft, and the driving wheel is connected with a motor rotating shaft through a belt.The designed straw quick crushing device for agricultural production not only is simple in structure, convenient to operate, high in working efficiency, low in cost, safe, reliable, long in service life, low in failure rate and simple to maintain, but also is good in straw crushing effect, and clastic particles are uniform in size and are smashed finely.

The invention discloses a high-speed shearing machine for preparing composite asphalt. The high-speed shearing machine comprises a shearing mechanism. The shearing mechanism comprises a main cylinder body for adding matrix asphalt and at least one auxiliary cylinder body arranged on an outer side of the main cylinder body, wherein the auxiliary cylinder body is used for adding a modifier; the auxiliary cylinder body communicates with the main cylinder body; a main shearing device is arranged in the main cylinder body; an auxiliary shearing device is arranged in the auxiliary cylinder body; and when the main shearing device and the auxiliary shearing device rotate, the matrix asphalt and the modifier are controlled to move to a joint of the main cylinder body and the auxiliary cylinder body for shearing. The invention accelerates the movement speed of the matrix asphalt and the modifier in the cylinder bodies, rapidly tears matrix asphalt and modifier liquid drops, improves the efficiency of diffusing the modifier liquid drops into the matrix asphalt liquid drops, shortens preparation time of composite modified asphalt, improves stability of the composite modified asphalt, can be used for researching performance of the composite modified asphalt, and has a wide market space.

The invention relates to a roadway heaving floor control method through pulse operation. The method comprises the following steps that a row of inclined drill holes are formed at each of two joints ofside parts and bottom plates on the left side and the right side of a roadway at a certain interval; the drill holes are detected by using a drill hole penetrometer; pressure conditions and displacement information data of deep rock stratums with different depths are obtained in sequence until the whole drill hole detection process is completed; according to the obtained drill hole inner pressureand displacement information data, in combination with the compression deformation condition, a data acquisition instrument can formulate reasonable parameters for later-period bottom plate fracturing; an electric pulse device is used for conducting fracturing operation on drilled holes in a roadway bottom plate; a shock wave fracturing range is observed, after the expected effect is achieved, the electric pulse device is taken out, and impact operation of next adjacent drill hole is conducted until the whole roadway floor fracturing operation is completely finished; drilling fracturing operation on the other side of the roadway bottom plate is completed; and later-period grouting anchor rod reinforcement is conducted. The method is high in detection precision, high in bottom cutting speed and good in repairing effect.