51results about How to "Won't squeeze out" patented technology

The invention relates to a testing system for deep soil freezing / thawing process, which is structurally characterized in that a temperature-controlled box is connected with an external cold bath; a high pressure-resistant organic glass cylinder is arranged on a temperature-controllable steel base; two small holes are formed in the base, one is connected with a water guide pipe, and the other is connected with a pressure adjusting pipe; a permeable stone, a piece of filter paper and a sample are sequentially arranged at the upper part of the lower base, and a temperature sensor is mounted in the sample; a temperature-controllable upper press head is arranged at the upper part of the sample; a line leading-out hole is formed in the upper press head, and is sealed through sealant after the line is lead out; the upper press head is connected with the transmission rod of a testing machine; a measuring cylinder is connected with the sample through the water guide pipe; and the measuring cylinder is arranged on a weighing sensor and fixed through a bracket. By adopting the testing system, the freezing / thawing process of the deep soil can be rather systematically researched, so as to obtain the frost heaving rate and the water absorbing / draining rate of the deep soil which is in different depths frozen under the different temperature gradients. The testing system provides the technical guarantee for the research in clarifying the action of the external load on the forming processes of the freezing soil and the frozen soil cold-formed structures, and the mutual action of the temperature, the moisture content and the pressure of the soil body in the process of freezing under the high-pressure action.

The invention relates to a test device for making a research on a soil freezing and thawing temperature field, water migration and a deformation law. The test device comprises a freezing bottom plate for feeding freezing liquid into the device, a split soil sample cavity which is arranged on the freezing bottom plate and used for storing soil samples, a top cover arranged at the top of the split soil sample cavity in a covering manner, a soil sample cover plate which is arranged in the split soil sample cavity and used for compacting the soil samples, a water replenishing connection pipe which is connected with a water replenishing device and used for adding water into the soil samples, and a bracket connected between the top cover and the freezing bottom plate. Compared with the prior art, the test device is simple in structure and convenient to operate, and a certain basis is provided for construction using an artificial ground freezing method.

The invention discloses a steel tube end seal ring and a sealing device, and belongs to the technical field of sealing equipment. The steel tube end seal ring comprises a seal ring body and a supporting block arranged in an annular groove, and a steel tube seal peripheral edge and an end face seal peripheral edge are arranged on the end face of the seal ring body; an arc-shaped supporting groove is formed in the end face of one side of the seal ring body; a convex ring provided with a through groove is arranged on the outer circumferential face of the seal ring body. The sealing device comprises a sealing head and a locating sleeve which are mutually matched, and the steel tube end seal ring is arranged in the sealing device. A supporting ring of the locating sleeve is arranged in a supporting groove of the sealing head in a jacking mode and a gap is reserved. The steel tube end seal ring and the sealing device have the advantages that the pre-sealing link is omitted, the efficiency is improved, and cost is saved; the problem that the seal ring droops is solved, so that a pressure testing head can be designed smaller, and therefore a high-pressure test can be conducted on steel tubes with the diameter phi being larger than six hundred and thirty millimeters; the gap between the supporting groove and the supporting ring guarantees the effect that the seal ring body can be moved in place during pressure exertion, and after pressure is removed, the seal ring body can recover the original shape.

The invention provides a continuous production method for a composite type sleeper. The continuous production method comprises the following four procedures: (1) spreading: enabling spread glass fiber woven fabric to pass through a supporting-spreading mechanism; (2) soaking: uniformly spraying polyurethane resin on the surface of the glass fiber woven fabric, and then enabling the glass fiber woven fabric to pass through pair rolls, thus forming a flat surface; (3) winding: winding the glass fiber woven fabric on the outer surface of a sleeper inner core, shearing off the glass fiber woven fabric and placing the sheared glass fiber woven fabric in a mold; and (4) molding: aging the polyurethane resin in the mold, removing the mold after the aging is ended, thus obtaining the composite type sleeper. The invention also provides continuous production equipment for the composite type sleeper. The interlayer shearing force of the sleeper produced by the method is cannot be damaged easily, the polyurethane resin in the outer surface of the sleeper produced by the method is distributed uniformly, and continuous and automatic production is realized by virtue of the method.

The invention relates to a bottle transport device which comprises a star wheel which can rotate, wherein a plurality of bottle grooves are formed in the periphery wall of the star wheel, and the sizes of the bottle grooves are matched with the size of the bottle. A bottle supporting plate is arranged below the star wheel, and a plurality of rolling bodies which can freely rotate are arranged in the bottle supporting plate. The bottle transport device is suitable for a filling production line, is slightly improved based on a traditional bottle transport device, enables a bottle bottom and the bottle supporting plate to conduct rolling friction when the bottle is transported, and greatly reduces friction resistance. The star wheel does not produce squeezing on the bottle, so that deformation of the bottle does not occur, liquid is not squeezed out of a bottle opening, the phenomenon of inaccurate metering is avoided, and pollution on the bottle opening does not occur.

The invention relates to an automatic power failure device for electric power information communication. The automatic power failure device comprises a case, a wind-driven device, a transmission roller, a driven longitudinal rod, a movable contact and a static contact, wherein the case comprises a case main body, an upper roaring hole, a transverse arrangement screw hole, a lower rotating hole, a position limiting screw bolt, a first wiring hole, a second wiring hole, an upper position limiting plate and a lower position limiting plate; the wind-driven device comprises an external threaded shaft, a driving gear, a wind-driven fan blade, a position limiting screw nut and a longitudinal arrangement insertion hole; the transmission roller comprises a transmission mandrel, a driven gear and a transmission roller post; the driven longitudinal rod comprises an overhead plug, a bottom plug, a bias longitudinal rod and a manual lock; the movable contact comprises a contact body, a hinging lug boss and a hinging connecting rod; the static contact is connected with a second conducting wire; the second conducting wire penetrates out of the casing main body from the second wiring hole. The automatic power failure device for electric power information communication has the advantages that the automatic power failure can be realized under the strong wind effect; the power failure can also be realized through manual pressing. The invention also discloses a power failure method of the automatic power failure device.

The container e.g. compressed air reservoir (1) has two cup-shaped container halves produced by recasting steel plates (2, 4), where edges (12, 14) of the halves overlap in an overlapping region. The edges are curved in a pointed angle opposite to cladding walls (8, 10) adjacent to the edges in such a manner that the edges run parallel to each other in the overlapping region. An adhesive- or butt joint (18) is arranged between the edges. The edge (12) of the container halves is curved outwards in the overlapping region, and the other edge (14) runs like a gable in a cross section.

The invention provides an electronmagnetic flowmeter and a determinator, which can ensure tightness. Moreover, the sealing component is not damaged by squeezing, and can not be squeezed out between the electrode component and the determinator. The electromagnetic flowmeter comprises a determinator (1), an electrode component (2), spring (7) and a gasket (3). The determinator is provided with a tubular peripheral wall with a through-hole (10), and the inner part of the peripheral wall has fuild, and the inner peripheral surface of the through-hole is provided with an inclined plane (10a). The electrode component is inserted in the through-hole, and has an inclined plane (1b), which is opposited to the inclined plane (10a), and the diameter is reduced along the inner part of the periphearl surface to the outside; an a protruding part (20), which is protruded from the inclined surface in a ring shape, and is against the inclined surface, and a gap is provided between the inclined surfaces. The spring (7) pushes the electrode component to the outside from the inner part of the peripheral surface. The gasket is a ring shaped component, and is clamped in the gap between inclined surfaces in a pressed state.

The invention relates to transparent model alloy equipment. It includes quartz glass cell containing transparent model alloy, temperature gradient platform and detection system. Its characters are: heating stage of temperature gradient platform use PTC calefaction module to warm, cooling stage use semiconductor refrigerator to cool, temperature can be accurately controlled, distance between heating stage and cooling stage can be adjusted arbitrarily and temperature difference is in direct proportion to distance between heating stage and cooling stage. Merits of the invention are: high precision; being able to measure flow field, temperature field and chroma field; butanedinitrile not being extruded under 90deg.C and ensuring photograph frame clearness in flight test.

The invention discloses a eutectic welding machine for die bonding of an LED chip. The eutectic welding machine comprises a base and a welding mechanism, wherein the welding mechanism is installed onthe upper portion of the base in a sliding mode; the welding mechanism comprises a bearing plate; side plates are movably connected to the two sides of the top of the bearing plate; and the opposite sides of the two side plates are horizontally connected with a first end plate and a second end plate correspondingly, and a second electric telescopic column is horizontally installed between the first end plate and the second end plate. Welding is more convenient, and cleanness and sanitation during installation can be kept under the condition that the chip is firmly installed, and the quality offollow-up use of the chip is not prone to being affected. In the glue smearing process, redundant glue overflows from the two sides of the upper portion of the chip to flow onto the bearing plate, and the redundant glue is not prone to being accumulated on the upper portion of the chip, thus guaranteeing that the chip can be used safely and efficiently.

The invention relates to the technical field of child auxiliary tools, in particular to a toothpaste dispenser for children. The technical problem to be solved by the present invention is that toothpaste dispensers in the prior art are inconvenient for children to use. In order to solve the above problem, the present invention provides the toothpaste dispenser for children. The toothpaste dispenser comprises a hollow seat; the top of the hollow seat and an opening on one side communicate with the outside, and an opening on the other side of the hollow seat is provided with an inlet; the inletis connected to the interior of the hollow seat; the inner wall of the inlet is fixedly connected with a plurality of inverted scraping blades; the front and rear sides of the inner wall of the hollowseat are connected by a rotating shaft; the rotating shaft is sleeved with a round sleeve; a pressure plate is fixedly connected to one side surface of the round sleeve; and a through groove is formed at the top of the pressure plate. The middle portion of a pressure roller is a convex rubber cylinder, and the cylinder can be deformed as the sleeve moves, so that the pressure roller can always bein contact with the bottom of the inclined groove, and the toothpaste can be squeezed out completely to avoid waste.

The invention discloses a sealing structure and a jar with the sealing structure, and belongs to the technical field of sealing and petroleum logging. A second sealing ring of the sealing structure isarranged at the inner side of the circumference of a first sealing ring, the mechanical strength of the first sealing ring is greater than that of the second sealing ring, the elasticity and resilience of the second sealing ring are greater than those of the first sealing ring, and the sealing effect is achieved through the combined use of the first sealing ring and the second sealing ring. The jar with the sealing structure is characterized in that the first sealing ring and the second sealing ring are arranged at the contact faces of a jar shell and jar hammer, the axial displacement of thefirst sealing ring is limited through a pressing ring, when the first sealing ring is pulled upward to an unlocking position, pressure jump exists, one side of the first sealing ring is pressed by the pressing ring, and the other side of the first sealing ring is pressed by the jar hammer, so that the first sealing ring cannot be squeezed out; when jarring is ended, the second sealing ring can utilizes the good elasticity to restore the shape of the first sealing ring and prepare for next jarring.

The invention discloses an environment-friendly self-adhesive coating for electrical steel and a preparation method thereof, belonging to the field of metal surface coatings. The preparation process of the self-adhesive paint of the present invention is as follows: 15% to 50% of water-soluble acrylic resin, 1% to 10% of dicyandiamide, 0.5% to 6% of ethylene glycol phenyl ether, and 1.5% of inorganic filler are sequentially added to pure water. %~13%, 0.5%~2.5% of dimethylethanolamine, 0.1%~0.8% of wetting and dispersing agent, 0.1%~0.3% of acetylenic glycol surfactant, stirring for 5~30min; particle size D 50 0.5 to 1.5 microns; add 30% to 70% of water-based epoxy resin to the ground slurry under stirring, stir for 10 to 60 minutes, and discharge through a sieve to become an environmentally friendly self-adhesive coating. The coating is green and environmentally friendly, has good storage stability, and when it is cured under heat and pressure, the coating will not be deformed by compression to cause the coating to be extruded.

The invention discloses a refractory material constructor lifting platform, and belongs to the technical field of refractory material construction equipment. The lifting platform is characterized by comprising a fixing base, a lifting table and plug-in mounting type guide rail rods, wherein a balancing weight is arranged in the fixing base, at least four plug-in mounting type guide rail rods are annularly arrayed on the fixing base, a lifting driving device is arranged on the lifting table, and the lifting driving device can drive the lifting table to move up and down along the plug-in mounting type guide rail rods. According to the lifting platform, the lifting time and stroke can be controlled by a single person while refractory material construction is conducted, manpower consumption islow, the operation is easy and convenient to conduct, and the lifting device is suitable for construction or repair operation of small kilns.

The invention relates to a novel vulcanization pressurizing plate, a vulcanizer, a rubber sheet for a conveyor belt joint and a conveyor belt connecting method. In order to solve the problems that in the existing conveyor belt joint technology, pressure intensity control is not precise, and a vulcanized rubber joint is low in strength and poor in quality, the invention provides a novel vulcanization pressurizing plate. The novel vulcanization pressurizing plate comprises a square pressurizing frame, a base plate, a stainless steel pressurizing inner container and a lifting plate, wherein the base plate is fixedly connected to the lower edge of the square pressurizing frame to form an open square pit; the stainless steel pressurizing inner container is arranged in the square pit; the lower surface of the lifting plate is pressed on the stainless steel pressurizing inner container; the lower edge of the periphery of the lifting plate is embedded in the square pit; the stainless steel pressurizing inner container is in a flat square shape; the side wall of the stainless steel pressurizing inner container is further communicated with a pressurizing pipe; and the outer end of the pressurizing pipe penetrates through the square pressurizing frame and then is connected to a matched high-pressure pump through a valve. The novel vulcanization pressurizing plate, the vulcanizer, the rubber sheet for the conveyor belt joint and the conveyor belt connecting method overcome the defects in the prior art, the rubber at the the conveyor belt joint is high in hardness, high in tensile strength and very tough, and the service life of the conveyor belt is greatly prolonged. The novel vulcanization pressurizing plate, the vulcanizer, the rubber sheet for the conveyor belt joint and the conveyor belt connecting method are widely applicable to various coal mines.

The invention discloses a root canal flushing device with a back suction function. The device comprises a root canal flushing head and a back suction needle tube which are detachably assembled. The root canal flushing head comprises a rod-shaped body, a flushing flow channel is formed in the length direction of the rod-shaped body, the front end of the flow channel is a flushing opening, and the rear end of the flow channel is communicated with a dental flushing device. The back suction needle tube comprises a needle head part and a tube body part, and the lower end of the needle head part is a liquid suction end and extends into a root canal of teeth; the rear end of the tube body part is communicated with a dental back suction device; the front end of the root canal flushing head is bent upwards, the lower end of the needle head part is inclined forwards, and an included angle alpha is formed between the center line of the needle head part in the length direction and the center line of the rod-shaped body in the length direction; the flushing opening at the front end of the flushing flow channel is bent downwards, and an included angle beta is formed between the center line of the cross section of the flushing opening and the center line of the needle part in the length direction. The invention provides a safer, cost-effective method to continuously deliver irrigation fluid without tip pressure while safely evacuating is performed by negative pressure.

A belt tightener for a safety belt system comprises a drive device having a tightener tube (10) and a substantially deformable power transmission element (12) which is guided inside the tightener tube (10) and engages a rotatable drive element during belt tightening. According to the invention, at least part of the surface of the power transmission element (12) and / or at least part of the inner surface of the tightener tube (10) is structured and covered with a lubricant.

The invention discloses a refractory material safe conveying and lifting system for a construction site, and belongs to the technical field of refractory material construction equipment. The device ischaracterized by comprising a fixed base, a lifting table and plug-in mounting type guide rail rods, at least four plug-in mounting type guide rail rods are annularly arrayed on the fixed base, a lifting driving device is arranged on the lifting table, and the lifting driving device can drive the lifting table to move up and down along the plug-in mounting type guide rail rods. The lifting platform comprises an outer shell, a storage platform is arranged on the upper portion of the outer shell, and safety fences are arranged on the periphery of the storage platform. A left rod storage bin anda right rod storage bin are arranged on the upper left portion and the upper right portion in the outer shell respectively. An embedded tool box is further arranged in the outer shell. The plug-in mounting type guide rail rod can be stored in the left rod storage bin and the right rod storage bin. The lifting platform can safely convey personnel and materials while assisting in refractory material construction, constructors on the lifting platform can control the lifting opportunity and stroke by themselves, manpower consumption is low, and the lifting platform is simple, convenient and easyto implement.

A melt filter for cleaning a plastic melt issuing from an extruder has a wheel rotatable about an axis and having an outer rim and a plurality of spokes forming an annular array of axially open spaces, a pair of housing plates axially sandwiching and completely covering the wheel and forming offset from the axis a melt passage extending axially through the wheel at the spaces, and removable filter elements braced axially against the wheel at the spaces between the spokes and angularly movable with the wheel with the melt flowing through the filter elements when same are aligned with the passage. One of the plates being formed with an edge cutout. A part on the one housing plate that can cover and close the cutout during normal operation of the melt filter can open and uncover the cutout for changing the filter element aligned axially with the cutout.

The invention discloses a pin used on a component, and belongs to the technical field of component pins. The pin comprises a pin connecting plate and a pin bottom plate. The left end surface of the pin connecting plate is fixedly provided with the pin bottom plate, and the left end part of the pin bottom plate is a climbing inclined surface, wherein the climbing inclined surface is an inclined surface which is obliquely upwards arranged on the bottom surface of the pin bottom plate. The pin bottom plate is provided with a plurality of parallel solder paste storage grooves, and the solder pastestorage grooves are through grooves which penetrate through the pin bottom plate. The pin is used for solving the technical problems that floating and insufficient welding are liable to happen when atraditional pin is welded.

The invention relates to a testing system for deep soil freezing / thawing process, which is structurally characterized in that a temperature-controlled box is connected with an external cold bath; a high pressure-resistant organic glass cylinder is arranged on a temperature-controllable steel base; two small holes are formed in the base, one is connected with a water guide pipe, and the other is connected with a pressure adjusting pipe; a permeable stone, a piece of filter paper and a sample are sequentially arranged at the upper part of the lower base, and a temperature sensor is mounted in the sample; a temperature-controllable upper press head is arranged at the upper part of the sample; a line leading-out hole is formed in the upper press head, and is sealed through sealant after the line is lead out; the upper press head is connected with the transmission rod of a testing machine; a measuring cylinder is connected with the sample through the water guide pipe; and the measuring cylinder is arranged on a weighing sensor and fixed through a bracket. By adopting the testing system, the freezing / thawing process of the deep soil can be rather systematically researched, so as to obtain the frost heaving rate and the water absorbing / draining rate of the deep soil which is in different depths frozen under the different temperature gradients. The testing system provides the technical guarantee for the research in clarifying the action of the external load on the forming processes of the freezing soil and the frozen soil cold-formed structures, and the mutual action of the temperature, the moisture content and the pressure of the soil body in the process of freezing under the high-pressure action.

The invention discloses a method for preparing special water-absorbing resin for an adult diaper. The water-absorbing resin is prepared from, by weight, 30 parts of acrylic acid, 20 parts of 50% sodium hydroxide solution, 6 parts of acrylamide, 5 parts of cross-linking agent, 60 parts of hydroxyl cyclopentadiene, 60 parts of deionized water, 0.8 part of hydrogen peroxide and 0.6 part of initiator. All the raw materials except hydrogen peroxide and the initiator are added into a reactor to be evenly mixed, and then nitrogen is introduced to remove oxygen; then the initiator is added to initiate polymerization reaction; the temperature of 85 DEG C is preserved for 2 hours; colloid is granulated and dried at the temperature of 140 DEG C till the water content is smaller than 3%; 1,4-butanediol is evenly sprayed to particles; surfactant is evenly sprayed to the particles, and the temperature of 140 DEG C is preserved for 40 min; finally, a 30% aluminum sulfate solution is added, the temperature of 120 DEG C is preserved, and the resin is obtained. The resin manufactured through the method is large in water retaining capacity, high in absorbing speed, flexible after water absorption, not prone to break when bearing pressure and particularly suitable for the adult diaper, and water absorbed in the resin cannot be squeezed out due to external force.

The invention discloses a filling type sealing auxiliary agent, which comprises, by weight, 20-30 parts of styrene butadiene rubber, 5-30 parts of nano-scale carbon black, 20-30 parts of a plasticizer, 15-35 parts of barium sulfate, 2-10 parts of a rare earth material, 10-30 parts of triethylamine, 10-15 parts of a flame retardant, 5-10 parts of an ultraviolet ray absorber, 5-10 parts of a heat stabilizer, 3-9 parts of an antioxidant and 15-25 parts of a tackifier. According to the invention, through the plasticizers, the performance of polymer materials is improved, the production cost is reduced, the productivity effectiveness is increased, and the plasticity and the strength of the material are improved; and through the tackifier, the bonding strength between the styrene butadiene rubber and other materials is increased, and good stability, good viscosity, good tensile strength, good color retention and good oxidation resistance can be maintained at a temperature of 90 DEG C, so that the compression creep is small when the sealing auxiliary agent is used for sealing the covering cap, cannot be extruded from the edge of the covering cap after long-term use, and has strong sealingproperty.

The invention provides a high-toughness conductive nano-composite ionic gel and a preparation method thereof. On the basis of ensuring the toughness of a product, the product has relatively good conductivity and extensibility and excellent comprehensive performance, and the preparation process is simple and suitable for large-scale production. The high-toughness conductive nano-composite ionic gel is characterized in that preparation raw materials of the high-toughness conductive nano-composite ionic gel comprise nano titanium dioxide hydrosol, ionic liquid and monomers, the volume ratio of the ionic liquid to the nano titanium dioxide hydrosol is (1-8):1, and after all the components of the raw materials are mixed, the molar concentration of the monomers is 0.5-3 M; the particle size of nano titanium dioxide in the nano titanium dioxide hydrosol is 5-30 nm, and the mass concentration of the nano titanium dioxide in the nano titanium dioxide hydrosol is 10%-15%; and the monomer is an acrylic acid, acrylate or acrylamide monomer.

The invention relates to a raw material crushing and collecting device for welding flux production. A device body is provided with a feeding port; a feeding hopper is arranged below the feeding port; a stirring barrel is arranged below the feeding hopper; stirring blades are arranged in the stirring barrel and connected with a first motor through a rotating shaft; the first motor is fixedly arranged in a first fixed box; a stirring barrel inlet is formed in the stirring barrel; leakage holes are formed in the bottom of the stirring barrel; a fixed frame is arranged in the middle of the device body; a second fixed box is arranged on the fixed frame; a second motor is arranged in the second fixed box; a lower grinding disc and an upper grinding disc are arranged on a rotating shaft of the second motor; baffles are arranged below the fixed frame; pressing plates are arranged in a pressing plate box; the pressing plates are connected with hydraulic machines; the hydraulic machines are fixedly arranged on the inner walls of the device body; a discharging port is formed in the bottom of the pressing plate box; and a collecting box is arranged below the discharging port. The raw material crushing and collecting device has the advantages of reasonable structure, good crushing effect and good collecting effect.

The invention relates to a multi-section heater (1) which comprises multiple sections (2, 3) that are connected in series through connectors (18) and are sealed from the outside in the connection area though the sealing devices (23). The first section (2) is equipped with a build-in valve (6) extended to the connector (18) between the first section (2) and the second section (3); the connector (18) between the first section (2) and the second section (3) has at least one screw (19, 20) used for connecting one of the two sections (2, 3). The screw (19) is has a screw seal device (25) for ensuring that the heat carrier is only controlled by the built-in valve (6).

The invention provides a high-stability water-soluble coenzyme Q10 inclusion compound. A preparation method comprises the following steps: heating a water-soluble coenzyme Q10 inclusion compound aqueous solution to 10-90 DEG C, adding a cross-linking agent, performing stirring reaction for 1-20 hours, and performing filtration and drying to obtain the high-stability water-soluble coenzyme Q10 inclusion compound. In the water-soluble coenzyme Q10 inclusion compound aqueous solution, an inclusion wall material of coenzyme Q10 is a starch wall material, and the content of water is 50-95% of the mass of the water-soluble coenzyme Q10 inclusion compound aqueous solution; and the addition amount of the cross-linking agent is 0.0005-0.02% of the mass of the water-soluble coenzyme Q10 inclusion compound aqueous solution. According to the invention, through an end group treatment mode of promoting cross-linking between hydrophilic end groups -OH outside the starch wall material through the cross-linking agent containing polyfunctional groups, an inlet port of the starch wall material is effectively terminated, the use stability of the water-soluble coenzyme Q10 inclusion compound is greatlyimproved, and the application field of the water-soluble coenzyme Q10 inclusion compound is further expanded.

The invention relates to a top comb spring bearer plate device of a combing machine. The top comb spring bearer plate device comprises rubber bars, a spring bearer plate, a top comb supporting leg and a screw. The surfaces of the rubber bars and the spring bearer plate are required to be roughened, and the rubber bars are glued in semicircular edge covering positions at the two ends of the spring bearer plate. The top comb supporting leg is connected with the spring bearer plate through the screw. The contact surfaces of the rubber bars in contact with the top comb supporting leg are flat surfaces. The top comb spring bearer plate device of the combing machine has the advantages that since the contact surfaces of the rubber bars in contact with the top comb supporting leg are changed to flat surfaces from the original circular surfaces, the distance A between the two rubber bars is increased, the rubber bars are not extruded by the top comb supporting leg any more, and the rubber bars are guaranteed not to be extruded off during working.

The invention relates to the technical field of electronic equipment maintenance, and discloses a high-precision glue dispensing device assembled by components in the communication industry, comprising a glue dispensing pen, a starting device and a pressing device. A rubber outlet tube is fixedly installed at the bottom end of the glue dispensing pen, a button is movably installed inside the glue dispensing pen, a valve is fixedly installed inside the glue outlet tube, the starting device is movably installed inside the glue dispensing pen, and the extrusion The device is installed inside the dispensing pen. When the button is pressed shallowly, the starting device will always lock the top block in the extrusion device to prevent the top block from moving, so as to prevent the extrusion device from working, and the glue will not be released from the dispensing device. Extruding from the pen, when the button is squeezed deeply, since the rotary plate has been completely plunged into the fixed frame, the extrusion device cannot be controlled by the pressure rod, so the amount of colloid discharged is not affected by the pressing depth of the button. The amount has always been the same.