CN113552164A - Thermal deformation and Vicat softening point heat tester - Google Patents
Thermal deformation and Vicat softening point heat tester Download PDFInfo
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- CN113552164A CN113552164A CN202110775114.3A CN202110775114A CN113552164A CN 113552164 A CN113552164 A CN 113552164A CN 202110775114 A CN202110775114 A CN 202110775114A CN 113552164 A CN113552164 A CN 113552164A
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- 239000000463 material Substances 0.000 claims abstract description 101
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000001914 calming effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/04—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of melting point; of freezing point; of softening point
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Abstract
The utility model relates to a heat altered shape, vicat softening point heat degree tester, including the holder that is used for the centre gripping material that awaits measuring, measure the station and include displacement sensor, be used for placing platform, weight dish, montant and gauge head of placing the material that awaits measuring, the montant is worn to establish and is followed vertical direction sliding connection on the sliding tray, weight dish and gauge head set up the upper and lower both ends at the montant respectively, displacement sensor is located the weight dish directly over, behind the holder centre gripping material that awaits measuring, the gauge head butt is on the material top surface that awaits measuring. The operating personnel holds up the weight dish with one hand and makes the gauge head upwards move to keeping away from family's holder, and then the other hand uses the holder centre gripping to fix the material that awaits measuring, opens the weight dish again, and the gauge head can butt under the action of gravity on the material that awaits measuring, because the material that awaits measuring is fixed on the holder, the material that awaits measuring can not take place to skid, and operating personnel need not adjust the position of the material that awaits measuring again, can be more convenient for the operating personnel and place the material that awaits measuring.
Description
Technical Field
The application relates to the field of testers, in particular to a thermal deformation and Vicat softening point heat tester.
Background
The thermal deformation Vicat tester is used for testing the Vicat softening point temperature and the thermal deformation temperature of a high molecular material, applying a certain load on the high molecular material or a polymer, raising the temperature at a certain speed, and reaching the corresponding temperature when the specified deformation is reached.
The utility model discloses a utility model patent that bulletin number is CN211955283U discloses a heat altered shape, vicat softening point temperature measurement appearance, including the apparatus main part, the front end surface of apparatus main part is provided with the workstation, the right side that the front end surface of apparatus main part is close to the workstation is provided with operating panel, operating panel's both sides surface is provided with the fixed slot, the surface of fixed slot is provided with the dead lever, the middle part both sides that the front end surface of apparatus main part is close to operating panel are provided with the card lid, the lower extreme that the front end surface of apparatus main part is close to the workstation is provided with the receiver, receiver front end surface is provided with the box handle, receiver both sides surface is provided with the guide rail.
An operator places a material to be measured at a position to be measured, then puts a 50N weight on the weight tray, the weight tray is connected with a measuring head for contacting the material to be measured, the measuring head is abutted against the top surface of the material to be measured, then the material to be measured is wholly immersed in oil, the measuring head slowly penetrates into the material to be measured along with the rise of the oil temperature, and when the independent display table shows that the displacement of the measuring head in the vertical direction is 1mm, the oil temperature at the moment is the thermal deformation temperature of the material to be measured.
The above-mentioned related technical solutions have the following drawbacks: in the process of placing a material to be measured on a thermal deformation and Vicat softening point temperature measuring instrument by an operator, a weight tray needs to be lifted by one hand, then the material to be measured is placed at a position to be measured under the weight tray by the other hand, meanwhile, because the position to be measured is provided with oil, the material to be measured is easy to slip, the position of the material to be measured needs to be continuously adjusted, then the weight tray, the weight tray and a measuring head are loosened to press the material to be measured on the position to be measured, and the whole process is complicated.
Disclosure of Invention
In order to facilitate the operator to place the material to be tested, the application provides a thermal deformation, vicat softening point heat degree tester.
The thermal deformation and Vicat softening point heat tester provided by the application adopts the following technical scheme:
a thermal deformation and Vicat softening point heat degree tester comprises an instrument body and a first driving part, wherein an oil tank is arranged on the top surface of the instrument body, a sliding table is connected to the instrument body in a sliding mode along the vertical direction, a plurality of measuring stations are arranged on the sliding table and used for measuring the Vicat softening point heat degree of a material to be measured, the first driving part drives the sliding table to move to a position where the material to be measured is immersed in the oil tank, the tester also comprises a clamping piece used for clamping the material to be measured, each measuring station comprises a fixing piece, a displacement sensor, a placing table used for placing the material to be measured, a weight plate, a vertical rod and a measuring head, the vertical rod is penetrated through and connected to the sliding table in a sliding mode along the vertical direction, the weight plates and the measuring head are respectively arranged at the upper end and the lower end of the vertical rod, the weight plates and the measuring head are respectively arranged at the upper side and the lower side of the sliding table, the displacement sensor is arranged right above the weight plates and connected to the sliding table in a sliding mode along the vertical direction, the fixing piece is used for fixing the position of the displacement sensor, the placing table is arranged on the sliding table, the clamping piece is connected to the placing table, and after the clamping piece clamps the material to be detected, the measuring head abuts against the top surface of the material to be detected.
Through adopting above-mentioned technical scheme, operating personnel one hand holds up the weight dish makes the gauge head upwards move to keeping away from the family holder, then the other hand uses the holder centre gripping to fix the material that awaits measuring, opens the weight dish again, and the gauge head can the butt under the action of gravity to the material that awaits measuring, because the material that awaits measuring is fixed on the holder, the material that awaits measuring can not take place to skid, and operating personnel need not adjust the position of the material that awaits measuring again, can be more convenient for operating personnel and place the material that awaits measuring.
Preferably, still include driving piece two, place sliding connection on the platform has the slider, the holder can be dismantled and connect on the slider, two drive sliders of driving piece make a round trip to slide placing the bench, the material that awaits measuring follows the slider through the holder and moves to keeping away from the gauge head setting or move to being located the gauge head under.
Through adopting above-mentioned technical scheme, before fixing the material to be measured on the holder, can use two drive sliders of driving piece to slide to the holder and keep away from the position of gauge head, at this moment operating personnel can use the holder centre gripping with the material to be measured by both hands, can reduce operating personnel's the operation degree of difficulty.
Preferably, the holder includes first board, second board, a plurality of spring and two curb plates, the connection can be dismantled on the slider to the first board, second board sliding connection is on the first board, and two curb plates set up respectively on first board and second board, the both ends setting of spring is on first board and second board, the spring is the shrink state all the time, and two curb plates are located the both sides of the material that awaits measuring respectively and will await measuring the material centre gripping.
Through adopting above-mentioned technical scheme, the holder can the centre gripping material to be measured of within range size, has increased the variety of holder centre gripping material to be measured, can change different holders through dismantling the first board simultaneously, has reduced maintenance and replacement cost.
Preferably, the two side plates are arranged opposite to each other, the side faces of the two side plates opposite to each other are respectively provided with a guide face, and the distance between the two guide faces is reduced from the top end to the bottom end in sequence.
Through adopting above-mentioned technical scheme, when placing the material that awaits measuring on the holder, setting up of spigot has played the guide effect to the material that awaits measuring to putting into between two curb plates, makes things convenient for placing of the material that awaits measuring more.
Preferably, it is equipped with the device of calming anger in the platform to place, measure the station and still include the fixed block, the fixed block sets up on the sliding stand, the montant is worn to establish on the fixed block, the first groove has been seted up on the fixed block, montant coaxial coupling has the slip table, the slip table is at first inslot along vertical direction sliding connection, the slip table falls into upper and lower two each other not intercommunicated epicoele and cavity down with the first groove, set up the exhaust passage of intercommunication epicoele and cavity down on the slip table, place and seted up the passageway on platform, slip table and the fixed block, passageway intercommunication cavity down and the device of calming anger, the device of calming anger is pressed the gaseous back drive slip table of impressing the passageway and is upwards slided along the first groove, the gauge head is followed the slip table and is removed to keeping away from the object that awaits measuring, the exhaust passage is used for slowly discharging the gas that the cavity of impressing the device of calming anger.
Through adopting above-mentioned technical scheme, before placing the material that will await measuring on the holder, use two drive holders of driving piece to remove to keeping away from the gauge head and using the holder centre gripping with the material that will await measuring earlier, then use the pneumatic device drive slip table rebound to make the gauge head be located the material top that awaits measuring, then use driving piece drive holder to remove to the material that awaits measuring to be located the gauge head under, the exhaust passage is slowly with gas outgoing this moment, the butt is on the material that awaits measuring under the effect of gravity again for the gauge head.
Preferably, the device of calming anger is including the device body, the travelling head and the actuating lever that have the cavity, the device body sets up and is placing the platform, the travelling head is originally internal at the device along the axis direction sliding connection of device body, the travelling head falls into left chamber and the right chamber that each other does not communicate with the cavity, passageway intercommunication right chamber and cavity of resorption, the actuating lever is worn to establish and is followed the slip direction sliding connection who is on a parallel with the travelling head on the device body, the both ends of actuating lever set up respectively on travelling head and slider, when two drive sliders of driving piece removed to lieing in the gauge head under from keeping away from gauge head one side, the travelling head removed the passageway of impressing with the gas of right intracavity towards right chamber one side.
Through adopting above-mentioned technical scheme, will remove head and slider through the actuating lever and link together, make the device of calming anger and slider use same driving piece two to drive, reduced the use of driving source, simultaneously when the in-process that the material that awaits measuring removed towards gauge head one side, the gauge head can move up to keeping away from the material that awaits measuring under the effect of the device of calming anger, then the gauge head slowly moves the butt downwards again on the material that awaits measuring, can realize the automatic butt of gauge head on the material that awaits measuring.
Preferably, the sliding table is rotatably connected to a vertical rod, a balance channel communicated with the upper cavity and the lower cavity is formed in the sliding table, a shielding cover is arranged on the vertical rod and is slidably connected to the sliding table, and when the shielding cover moves to shield the balance channel, the balance channel is not communicated with the upper cavity and the lower cavity;
the device body is provided with a two-way exhaust valve, the two-way exhaust valve is used for communicating the left cavity with the outside, and the two-way exhaust valve prohibits oil from entering the left cavity.
Through adopting above-mentioned technical scheme, when taking off the material to be measured from the holder, operating personnel upwards lifts up the weight dish, then rotates the weight dish, makes the housing shelter from no longer keeping out the balance way, uses driving piece two this moment to keep away from gauge head one side with the slider orientation and promotes, the material to be measured removes to keeping away from the gauge head, the removal head slides towards left chamber one side simultaneously, balance way and two-way discharge valve can keep each atmospheric pressure balanced, make the smooth slip towards left chamber one side of removal head, the slip table can not slide downwards under the effect of pressure difference simultaneously.
Preferably, the sliding table is provided with a sector groove, the shielding cover is connected in the sector groove in a sliding mode by taking the vertical rod as a rotating shaft, and when the shielding cover moves to abut against the side walls of the two sides of the sector groove, the shielding cover moves to shield the balance channel or keep away from the balance channel.
By adopting the technical scheme, the matching of the fan-shaped groove and the shielding cover can enable an operator to more conveniently control the opening and closing of the balance channel by rotating the weight tray.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the air compressing device, the air compressing device drives the sliding table to move upwards to enable the measuring head to be located above the material to be measured, then the driving piece is used for driving the clamping piece to move to the position, under the measuring head, of the material to be measured, at the moment, the air exhaust channel slowly exhausts air, and the measuring head is abutted against the material to be measured again under the action of gravity;
2. through the arrangement of the balance channel and the two-way exhaust valve, the material to be measured is moved to a position far away from the measuring head by using the driving part II, at the moment, the moving head slides towards one side of the left cavity, the balance channel and the two-way exhaust valve can keep air pressure at all positions balanced, the moving head can smoothly slide towards one side of the left cavity, and meanwhile, the sliding table cannot slide downwards under the action of pressure difference;
3. by arranging the fan-shaped groove, the matching of the fan-shaped groove and the shielding cover can enable an operator to more conveniently control the opening and closing of the balance channel by rotating the weight tray.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is an enlarged view at B in fig. 2.
Fig. 4 is a sectional view taken along line B-B in fig. 1.
FIG. 5 is a schematic structural diagram of a shielding cover according to an embodiment of the present application.
Description of reference numerals: 11. an instrument body; 111. an oil liquid tank; 12. a first driving part; 121. a first cylinder; 13. a sliding table; 131. a side block; 14. an electric heating tube; 15. a motor; 151. a stirring blade; 2. a measuring station; 22. A stay bar; 221. supporting a platform; 222. a handle is rotated; 23. a displacement sensor; 24. a fixed block; 241. a weight tray; 242. a vertical rod; 243. a measuring head; 25. a placing table; 251. a side table; 252. a base table; 2521. a transverse groove; 2522. a second cylinder; 2523. a slider; 26. a first groove; 261. an upper chamber; 262. a lower cavity; 27. a sliding table; 271. an arc-shaped slot; 273. a shield cover; 2731. a magnetic block; 274. a magnet; 275. a balance way; 276. an exhaust passage; 3. a clamping member; 31. a first plate; 311. a second groove; 312. a spring; 32. a side plate; 321. a guide surface; 33. a second plate; 4. a gas compressing device; 41. a device body; 411. a cavity; 4111. a left lumen; 4112. a right lumen; 42. a moving head; 43. a drive rod; 44. a two-way exhaust valve; 5. a channel.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a thermal deformation and Vicat softening point heat tester.
Referring to fig. 1 and 2, the thermal deformation vicat softening point thermal tester of the present embodiment includes an instrument body 11 and a first driving element 12, wherein an oil tank 111 is disposed at a center position of a top surface of the instrument body 11, and a length direction of the oil tank 111 is parallel to a length direction of the instrument body 11. The instrument body 11 is connected with a sliding table 13 in a sliding mode along the vertical direction, the length direction of the sliding table 13 is parallel to the length direction of the instrument body 11, two ends of the sliding table 13 in the length direction are respectively fixedly connected with side blocks 131, and the driving piece I12 drives the sliding table 13 to slide on the instrument body 11. The first driving part 12 comprises two first cylinders 121, the two first cylinders 121 are embedded in the instrument body 11 respectively, the two first cylinders 121 are located on two sides of the length direction of the oil liquid groove 111 respectively, piston rods of the two first cylinders 121 vertically extend upwards out of the instrument body 11 and penetrate through the two side blocks 131 respectively and are fixedly connected with the two side blocks 131.
Referring to fig. 1 and 2, three measuring stations 2 are arranged on the sliding table 13, the three measuring stations 2 are arranged on the sliding table 13 along the length direction of the sliding table 13, and each measuring station 2 can measure the vicat softening point heat of a material to be measured.
Referring to fig. 1 and 3, the measuring stations 2 include fixing blocks 24, fixing members, displacement sensors 23, a placing table 25 for placing a material to be measured, a weight tray 241, vertical bars 242 and measuring heads 243, the fixing blocks 24 on the three measuring stations 2 are uniformly distributed on the top surface of the sliding table 13 along the length direction of the sliding table 13, and the length direction of the fixing blocks 24 is parallel to the width direction of the sliding table 13. The placing table 25 comprises a bottom table 252 and two side tables 251, two ends of the bottom table 252 are respectively and vertically fixedly connected to one ends of the two side tables 251 in the length direction, the two side tables 251 are oppositely arranged, one ends of the side tables 251 far away from the bottom table 252 penetrate through the sliding table 13 to be fixedly connected to two ends of the fixed block 24 in the length direction of the bottom surface, the bottom table 252 is located right below the corresponding fixed block 24, and the length direction of the bottom table 252 is parallel to the length direction of the fixed block 24.
Referring to fig. 2 and 3, the weight tray 241 and the measuring head 243 are respectively fixedly connected to two ends of the vertical rod 242 in the length direction, the weight tray 241, the measuring head 243 and the vertical rod 242 are coaxially arranged, the vertical rod 242 is arranged along the vertical direction, the vertical rod 242 penetrates through and is slidably connected to the fixed block 24 and the sliding table 13 along the vertical direction, and the weight tray 241 and the measuring head 243 are respectively located on the upper side and the lower side of the fixed block 24 and the sliding table 13. The bottom end of the measuring head 243 is arranged in a pointed manner, the material to be measured is placed on the top surface of the base platform 252, and the measuring head 243 abuts against the top surface of the material to be measured to press the material to be measured on the base platform 252.
Referring to fig. 1 and 4, a stay 22 is fixedly connected to the top surface of the fixing block 24 along the vertical direction, a stay platform 221 is fixedly connected to the displacement sensor 23, and one end of the stay platform 221 in the length direction penetrates through and is slidably connected to the stay 22 along the vertical direction. The fixing member is used to fix the position of the stay 22. The fixing member is a rotating handle 222, and one end of the rotating handle 222 is screwed on the supporting platform 221 and abuts against the side wall of the stay 22. The displacement sensor 23 is disposed in the vertical direction and located right above the weight tray 241, and the displacement sensor 23 is used to measure the moving distance of the weight tray 241 in the vertical direction.
Referring to fig. 1 and 2, an electric heating tube 14 is fixedly connected in the oil tank 111, the electric heating tube 14 is located at the bottom end of the oil tank 111, and the electric heating tube 14 is uniformly distributed at the bottom of the oil tank 111 in a wave shape.
Referring to fig. 1 and 2, the two motors 15 are fixedly connected to the instrument body 11, the two motors 15 and the three stations are arranged at intervals, and an output shaft of each motor 15 extends into one side of the bottom end of the oil liquid groove 111 and is coaxially and fixedly connected with a stirring blade 151. The motor 15 and the stirring blade 151 do not contact the slide table 13, the placing table 25, and the object to be measured.
The vicat softening point heat degree of the material to be measured is measured by pouring oil into the oil groove 111, placing the material to be measured on the top surface of the bottom platform 252, placing a 50N weight on the weight tray 241, and pressing the material to be measured on the top surface of the bottom platform 252 by the measuring head 243 abutting against the top surface of the material to be measured under the action of the gravity of the weight. The operator then adjusts the position of the brace 221 by turning the lever 222 so that the displacement sensor 23 is in contact with the top surface of the weight tray 241. Then the piston rod of the first cylinder 121 contracts, the material to be measured is immersed into the oil, the electrothermal tube 14 is electrified to heat the oil, the output shaft of the driving motor 15 rotates to drive the stirring blade 151 to stir the oil, so that the temperature of each part of the oil can be kept the same as far as possible, the measuring head 243 slowly penetrates into the material to be measured along with the rise of the temperature of the oil, and when the displacement sensor 23 displays that the displacement of the measuring head 243 in the vertical direction is 1mm, the oil temperature at the moment is the thermal deformation temperature of the material to be measured.
Referring to fig. 2 and 3, a transverse slot 2521 is formed on the top surface of the base 252, the longitudinal direction of the transverse slot 2521 is parallel to the width direction of the base 252, the transverse slot 2521 is located at the center position in the longitudinal direction of the base 252, and a slider 2523 is slidably connected to the transverse slot 2521 along the longitudinal direction of the transverse slot 2521. The base 252 is provided with a second driving element, which drives the sliding block 2523 to slide on the transverse slot 2521. The second driving element is a second cylinder 2522, the second cylinder 2522 is embedded on the base platform 252, the second cylinder 2522 is located on one side of the transverse groove 2521 close to the measuring head 243, and a piston rod of the second cylinder 2522 is arranged towards one side of the slider 2523 and is fixedly connected to the slider 2523.
Referring to fig. 2 and 3, the slider 2523 is detachably connected to the clamping member 3, the clamping member 3 includes a first plate 31, a second plate 33, a plurality of springs 312, and two side plates 32, the first plate 31 is detachably connected to the slider 2523, the first plate 31 is connected to a bolt, and one end of the bolt passes through the center of the first plate 31 and is screwed to the slider 2523. The length direction of the first plate 31 is parallel to the length direction of the base 252, a second groove 311 is formed on the side surface of the first plate 31 away from the second cylinder 2522 in the width direction, the second groove 311 is located on one side of the bolt, the second plate 33 is slidably connected to the second groove 311 in the width direction parallel to the first plate 31, and the width direction of the second plate 33 is parallel to the width direction of the first plate 31. Both ends of the spring 312 are respectively fixedly connected to the bottom wall of the second slot 311 and the side surface of the second plate 33 facing the bottom wall of the second slot 311, and the spring 312 is always in a contracted state. The two side plates 32 are fixedly connected to ends of the top surfaces of the first plate 31 and the second plate 33, which are away from each other, respectively, and the length direction of the side plates 32 is the length direction of the first plate 31 and the second plate 33. When no external force is applied, the side plate 32 of the second plate 33 will always abut against the first plate 31 under the elastic force of the spring 312.
Referring to fig. 2 and 3, the two side plates 32 are disposed opposite to each other, and the side surfaces of the two side plates 32 disposed opposite to each other are respectively provided with a guide surface 321, and the distance between the two guide surfaces 321 is gradually reduced from the top end to the bottom end.
The clamping member 3 is used to clamp a material to be tested, the material to be tested is generally rectangular, the two side plates 32 respectively clamp two ends of the material to be tested in the width direction, and the bottom surface of the material to be tested is attached to the top surface of the first plate 31. When the piston rod of the second cylinder 2522 contracts, the slider 2523 slides toward the second cylinder 2522 to abut against the sidewall of the transverse groove 2521, and at this time, the measuring head 243 is disposed opposite to the slider 2523, and the measuring head 243 is located right above the material to be measured. When the piston rod of the second cylinder 2522 extends, the slider 2523 slides towards the side away from the second cylinder 2522 to abut against the side wall of the transverse groove 2521, and at this time, the material to be measured is located on the side of the measuring head 243 away from the second cylinder 2522 and is spaced from the measuring head 243.
Referring to fig. 2 and 3, a first groove 26 is formed in the fixing block 24, the vertical rod 242 is coaxially and rotatably connected with the sliding table 27, the sliding table 27 is slidably connected in the first groove 26 in the vertical direction, the sliding table 27 divides the first groove 26 into an upper cavity 261 and a lower cavity 262 which are not communicated with each other, and the sliding table 27 is further provided with an exhaust passage 276 communicating the upper cavity 261 and the lower cavity 262. The air compressing device 4 is arranged in the bottom table 252, the placing table 25, the sliding table 13 and the fixing block 24 are provided with the channel 5, two ends of the channel 5 are respectively communicated with the lower cavity 262 and the air compressing device 4, the air compressing device 4 presses air into the channel 5 and then drives the sliding table 27 to slide upwards along the first groove 26, the measuring head 243 is connected with the sliding table 27 through the vertical rod 242 and moves to a far object to be measured along with the sliding table 27, the exhaust passage 276 is used for slowly discharging the air pressed into the air compressing device 4 in the lower cavity 262, and the measuring head 243 is abutted to the object to be measured again.
Referring to fig. 2 and 3, the compressor 4 includes a device body 41 with a cavity 411, a moving head 42 and a driving rod 43, the device body 41 is embedded in the base table 252, and the device body 41 is located on a side close to the second cylinder 2522 and below the second cylinder 2522. The length direction of the device body 41 is parallel to the length direction of the transverse groove 2521, the moving head 42 is slidably connected to the inner wall of the device body 41 along the length direction parallel to the device body 41, the moving head 42 divides the cavity 411 into a left cavity 4111 and a right cavity 4112 which are not communicated with each other, and the left cavity 4111 is arranged closer to the transverse groove 2521 than the right cavity 4112. The driving rod 43 is disposed in an L shape, one end of the driving rod 43 is fixedly connected to the bottom wall of the slider 2523, the other end of the driving rod 43 passes through the device body 41 and is fixedly connected to a side surface of the moving head 42 facing the left cavity 4111, and the driving rod 43 is slidably connected to the device body 41 and the bottom platform 252 along a sliding direction parallel to the slider 2523.
When the piston rod of the second cylinder 2522 contracts, the driving slider 2523 drives the material to be measured to move towards the side close to the measuring head 243, the slider 2523 moves to drive the moving head 42 to move towards the side of the right cavity 4112 and press the gas in the right cavity 4112 into the channel 5, the measuring head 243 can move upwards under the action of the gas compressing device 4 to be far away from the material to be measured, and then the measuring head 243 slowly moves downwards to abut against the material to be measured, so that the automatic abutting of the measuring head 243 on the material to be measured is realized.
Referring to fig. 2 and 3, a two-way exhaust valve 44 is disposed on the device body 41, the two-way exhaust valve 44 is used for communicating the left cavity 4111 with the outside, and the two-way exhaust valve 44 prevents oil from entering the left cavity 4111.
Referring to fig. 4 and 5, a sector groove is formed in the top surface of the sliding table 27, a shielding cover 273 is fixedly connected to the vertical rod 242, the shielding cover 273 is also in a sector shape, the shielding cover 273 rotates by taking the vertical rod 242 as an axis and is connected to the sector groove in a sliding mode, a sector surface of the shielding cover 273 is always attached to a sector wall of the sector groove, and a bottom wall of the shielding cover 273 is also always attached to a bottom wall of the sector groove. Fixedly connected with magnet 274 respectively on the both sides lateral wall of sector groove, fixedly connected with and magnetic block 2731 respectively on the both sides lateral wall of shielding cover 273, when shielding cover 273 removes to the sector groove both ends, magnetic block 2731 homoenergetic magnet 274 homoenergetic adsorbs magnetic block 2731 to make shielding cover 273 can fix the both ends that are located the sector groove. A balance channel 275 for communicating the upper cavity 261 with the lower cavity 262 is formed in the fan-shaped groove, the balance channel 275 is arranged close to one of the magnets 274, and when the shielding cover 273 slides to be attached to the side wall, close to the balance channel 275, of the fan-shaped groove, the shielding cover 273 shields the balance channel 275; when the shielding cover 273 is slid to fit on the side wall of the sector groove away from the balance duct 275, the shielding cover 273 is disposed away from the balance duct 275. When the balance duct 275 is in the connected state, the air compressing device 4 does not affect the slide table 27.
When the material to be measured is taken down from the clamping member 3, the operator lifts the weight tray 241 upwards to move the measuring head 243 away from the material to be measured, then the weight tray 241 is rotated to drive the shielding cover 273 to rotate so that the shielding cover 273 does not shield the balance channel 275 any more, at this time, the piston rod output of the second cylinder 2522 is controlled to push the sliding block 2523 towards one side away from the measuring head 243, the material to be measured moves away from the measuring head 243, meanwhile, the moving head 42 slides towards one side of the left cavity 4111, the balance channel 275 and the two-way exhaust valve 44 can keep air pressure balance at each position, so that the moving head 42 smoothly slides towards one side of the left cavity 4111, and meanwhile, the sliding table 27 cannot slide downwards under the action of pressure difference.
The implementation principle of the thermal deformation and Vicat softening point heat tester in the embodiment of the application is as follows: the operating personnel control the piston rod of second cylinder 2522 to stretch out, make holder 3 move to keeping away from gauge head 243, then operating personnel uses two curb plates 32 on holder 3 to carry out the centre gripping to holder 3, the piston rod of second cylinder 2522 of redriving this moment contracts again, drive compressor unit 4 will be with the gas channel 5 of impressing in right chamber 4112, gauge head 243 can move up to keeping away from the material that awaits measuring under compressor unit 4's effect, then gauge head 243 moves the butt slowly downwards again on the material that awaits measuring, thereby make the automatic butt of gauge head 243 on the material that awaits measuring.
When the material to be measured is taken down from the clamping piece 3, the operator lifts the weight tray 241 upwards to move the measuring head 243 away from the material to be measured, then rotates the weight tray 241 to drive the shielding cover 273 to rotate so that the shielding cover 273 does not shield the balance channel 275 any more, at this time, the piston rod output of the second cylinder 2522 is controlled to push the sliding block 2523 towards one side away from the measuring head 243, so that the moving head 42 smoothly slides towards one side of the left cavity 4111, the clamping piece 3 is moved again away from the measuring head 243, and then the operator takes down the material to be measured.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a heat altered, vicat softening point heat altered tester, includes instrument body (11) and driving piece (12), oil cistern (111) have been seted up on instrument body (11) top surface, there is sliding stand (13) along vertical direction sliding connection on instrument body (11), be equipped with a plurality of measuring station (2) on sliding stand (13), measuring station (2) are used for measuring the vicat softening point heat of the material that awaits measuring, driving piece (12) drive sliding stand (13) move to the material that awaits measuring on measuring station (2) and dip in oil cistern (111), its characterized in that: the measuring device is characterized by further comprising a clamping piece (3) used for clamping a material to be measured, the measuring station (2) comprises a fixing piece, a displacement sensor (23), a placing platform (25) used for placing the material to be measured, a weight tray (241), a vertical rod (242) and a measuring head (243), the vertical rod (242) penetrates through and is connected to the sliding platform (13) in a sliding mode along the vertical direction, the weight tray (241) and the measuring head (243) are respectively arranged at the upper end and the lower end of the vertical rod (242), the weight tray (241) and the measuring head (243) are respectively arranged at the upper side and the lower side of the sliding platform (13), the displacement sensor (23) is arranged right above the weight tray (241) and is connected to the sliding platform (13) in a sliding mode along the vertical direction, the fixing piece is used for fixing the position of the displacement sensor (23), the placing platform (25) is arranged on the sliding platform (13), and the clamping piece (3) is connected to the placing platform (25), after the clamping piece (3) clamps the material to be measured, the measuring head (243) abuts against the top surface of the material to be measured.
2. A thermal deformation, vicat softening point heat tester as claimed in claim 1, wherein: the material to be measured is moved to a position far away from the measuring head (243) or moved to a position under the measuring head (243) along with the sliding block (2523) through the clamping piece (3).
3. A thermal deformation, vicat softening point heat tester as claimed in claim 2, wherein: holder (3) include first board (31), second board (33), a plurality of spring (312) and two curb plate (32), connection can be dismantled on slider (2523) in first board (31), second board (33) sliding connection is on first board (31), and two curb plate (32) set up respectively on first board (31) and second board (33), the both ends setting of spring (312) is on first board (31) and second board (33), spring (312) are the shrink state all the time, and two curb plate (32) are located the both sides of the material that awaits measuring respectively and will await measuring the material centre gripping.
4. A thermal deformation, vicat softening point, heat tester as claimed in claim 3, wherein: two curb plate (32) are just right the setting each other and have seted up spigot surface (321) on the just right one side of two curb plate (32) each other, and the distance between two spigot surface (321) diminishes from top to bottom in proper order.
5. A thermal deformation, vicat softening point heat tester as claimed in claim 2, wherein: the device is characterized in that an air compressing device (4) is arranged in the placing table (25), the measuring station (2) further comprises a fixed block (24), the fixed block (24) is arranged on the sliding table (13), the vertical rod (242) is arranged on the fixed block (24) in a penetrating manner, a first groove (26) is formed in the fixed block (24), the vertical rod (242) is coaxially connected with a sliding table (27), the sliding table (27) is connected in the first groove (26) in a sliding manner along the vertical direction, the sliding table (27) divides the first groove (26) into an upper cavity (261) and a lower cavity (262) which are not communicated with each other from top to bottom, an exhaust passage (276) communicated with the upper cavity (261) and the lower cavity (262) is formed in the sliding table (27), a passage (5) is formed in the placing table (25), the sliding table (13) and the fixed block (24), the passage (5) is communicated with the lower cavity (262) and the air compressing device (4), the gas compressing device (4) presses gas into the channel (5) and then drives the sliding table (27) to slide upwards along the first groove (26), the measuring head (243) moves far away from an object to be measured along the sliding table (27), and the exhaust passage (276) is used for slowly discharging the gas pressed by the gas compressing device (4) in the lower cavity (262).
6. A thermal deformation, Vicat softening point heat tester as claimed in claim 5, wherein: the air compressing device (4) comprises a device body (41) with a cavity (411), a moving head (42) and a driving rod (43), wherein the device body (41) is arranged in a placing table (25), the moving head (42) is connected in the device body (41) in a sliding manner along the axis direction of the device body (41), the moving head (42) divides the cavity (411) into a left cavity (4111) and a right cavity (4112) which are not communicated with each other, a channel (5) is communicated with the right cavity (4112) and a lower cavity (262), the driving rod (43) is arranged in a penetrating manner and is connected on the device body (41) in a sliding manner along the sliding direction parallel to the moving head (42), two ends of the driving rod (43) are respectively arranged on the moving head (42) and a sliding block (2523), and when a driving piece (2523) moves from the side far away from the measuring head (243) to the side located under the measuring head (243), the moving head (42) moves towards one side of the right cavity (4112) to press the gas in the right cavity (4112) into the channel (5).
7. A thermal deformation, vicat softening point, heat tester as claimed in claim 6, wherein: the sliding table (27) is rotatably connected to a vertical rod (242), a balance channel (275) communicated with an upper cavity (261) and a lower cavity (262) is formed in the sliding table (27), a shielding cover (273) is arranged on the vertical rod (242), the shielding cover (273) is slidably connected to the sliding table (27), and when the shielding cover (273) moves to shield the balance channel (275), the balance channel (275) is not communicated with the upper cavity (261) and the lower cavity (262);
be equipped with two-way discharge valve (44) on device body (41), two-way discharge valve (44) are used for communicating left chamber (4111) with the external world, two-way discharge valve (44) forbid fluid entering left chamber (4111).
8. A thermal deformation, vicat softening point heat tester as claimed in claim 7, wherein: seted up the sector groove on slip table (27), shelter from cover (273) and use montant (242) to be pivot sliding connection in the sector groove, when shelter from cover (273) and remove to the butt on the both sides lateral wall in sector groove, shelter from cover (273) and remove to shelter from balanced way (275) or keep away from balanced way (275).
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| CN202110775114.3A CN113552164B (en) | 2021-07-08 | 2021-07-08 | Thermal deformation and Vicat softening point heat tester |
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| CN202110775114.3A CN113552164B (en) | 2021-07-08 | 2021-07-08 | Thermal deformation and Vicat softening point heat tester |
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Cited By (1)
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| CN116626092A (en) * | 2023-07-25 | 2023-08-22 | 苏州锐驰朗新材料有限公司 | PET sheet Vicat temperature tester |
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| CN113552164B (en) | 2024-04-05 |
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