On-line detection device for dry heat shrinkage rate of polyester staple fiber

Abstract

The invention discloses a polyester staple fiber dry heat shrinkage rate on-line detection device, and relates to the technical field of polyester staple fiber detection, the polyester staple fiber dry heat shrinkage rate on-line detection device comprises a detector host, the side wall of the detector host is in bolted connection with an electric push rod, and the telescopic end of the electric push rod is fixedly connected with a magnetic suction plate; the magnetic suction plate is in magnetic suction with an adsorption block on the side wall of the heat conduction frame, the interior of the heat conduction frame is hollowed out to form a sliding cavity, the other end of the sliding cavity communicates with the interior of the containing groove, a pushing plate is slidably connected to the joint of the containing groove and the sliding cavity, and the containing groove and the sliding cavity are formed in the heat conduction frame. Automatic rotation of polyester staple fibers in the heating process is achieved, it is guaranteed that the fibers are evenly heated, the accuracy of dry heat treatment is improved, in the cooling process, ammonia gas shrinks to drive air to enter a sliding cavity, the driving wheel is further driven to rotate, and preparation is made for subsequent measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of polyester staple fiber detection, and specifically to an on-line detection device for the dry heat shrinkage rate of polyester staple fibers. Background Art

[0002] The patent with the publication (announcement) number CN116840284A discloses a multi-station single-fiber dry heat shrinkage rate detection device. The detection device includes a detector main body, a translation fixing frame fixed on the detector main body, and a fiber clamping mechanism. The fiber clamping mechanism includes a translation slider, a plurality of spring clamps with the same quantity arranged on the translation slider, positioning pins, and a tension clamp.

[0003] In the above prior art, the upper end of the fiber filament is clamped by forceps and the vertical position of the fiber filament is defined by the positioning pin. The spring clamp below the positioning pin is opened to clamp the upper end of the fiber filament, and the fiber filament is fixed on the fiber clamping mechanism. When the fiber clamping mechanism moves to the external oven for drying, the position of the fiber filament is fixed, and the heating angle cannot be dynamically adjusted, resulting in uneven heating of the fiber and low test accuracy. Summary of the Invention

[0004] Therefore, to solve the above deficiencies, the present invention provides an on-line detection device for the dry heat shrinkage rate of polyester staple fibers.

[0005] The present invention is implemented as follows. An on-line detection device for the dry heat shrinkage rate of polyester staple fibers is constructed. The device includes a detector main body. An electric push rod is bolted to the side wall of the detector main body, and a magnetic attraction plate is fixedly connected to the telescopic end of the electric push rod; the magnetic attraction plate is magnetically attracted to the adsorption block on the side wall of the heat conduction frame. The inside of the heat conduction frame is hollowed out to form a sliding cavity, and the other end of the sliding cavity communicates with the accommodation groove. A push plate is slidably connected to the connection part between the accommodation groove and the sliding cavity; a driving wheel is rotatably connected in the sliding cavity, and the upper end of the connecting shaft at the center of the driving wheel is fixedly connected to the center of the clip. Ammonia gas is filled in the accommodation groove, and when heated, the ammonia gas will expand and indirectly drive the polyester staple fiber to rotate through the driving wheel.

[0006] In a feasible implementation manner, a light source is fixedly connected to the front end of the detector main body, a projection measurement mechanism is fixedly connected to the right end of the detector main body, and a projection display screen is fixedly connected to the upper side wall of the detector main body.

[0007] In a feasible implementation manner, a first one-way valve and a second one-way valve are respectively embedded at the left and right ends of the side wall of the sliding cavity far from the accommodation groove.

[0008] In a feasible implementation manner, a limiting frame is fixedly connected to the side wall of the connecting shaft at the center of the driving wheel. A screw rod is rotatably connected in the limiting frame, the top of the screw rod is fixedly connected to the handle, and the sliding block is threadedly connected to the connecting plate and drives the connecting plate to slide in the limiting frame.

[0009] In a feasible implementation manner, the side wall of the connecting plate is fixedly connected to the mouth-shaped frame. A magnetic adsorption area is embedded in the inner side wall of the mouth-shaped frame. An extrusion rod is fixedly connected to the inner side wall of the mouth-shaped frame. An embedding frame is slidably connected in the mouth-shaped frame. The adsorption area provided on the side wall of the embedding frame is magnetically adsorbed to the magnetic adsorption area on the inner side wall of the mouth-shaped frame.

[0010] In a feasible implementation manner, the embedding frame is rotatably connected to the cross plate through a torsion spring; the embedding frame drives the first driving wheel to be rotatably connected to the cross plate, and the other end of the cross plate is rotatably connected to the second driving wheel.

[0011] In a feasible implementation manner, an embedding groove is embedded in the side wall of the first driving wheel. A cavity is formed in a hollow manner inside the first driving wheel. A piston plate is slidably connected in the cavity. The side wall of the piston plate is fixedly connected to a sliding rod. The other end of the sliding rod slidably passes through the inner side wall of the first driving wheel and is slidably connected inside the embedding frame.

[0012] In a feasible implementation manner, the side wall of the sliding rod and the inner side wall of the cavity are respectively fixedly connected to both ends of a return spring. A plurality of suction holes are arc-embedded in the inner side wall of the cavity. The plurality of suction holes are communicated with the embedding groove. A matching ring is annularly arranged on the outer peripheral wall of the second driving wheel. The matching ring is slidably inserted into the embedding groove.

[0013] The present invention has the following advantages: The present invention provides an on-line detection device for the dry heat shrinkage rate of polyester staple fibers through improvement. Compared with the same type of equipment, the following improvements are made:

[0014] For the on-line detection device for the dry heat shrinkage rate of polyester staple fibers described in the present invention, through the cooperation of the electric push rod and the magnetic adsorption structure, the quick loading and unloading of the heat conduction frame is realized. Combined with the automatic alignment function of the light source and the projection measurement mechanism, multiple groups of fiber samples can be continuously measured, greatly improving the detection efficiency.

[0015] For the on-line detection device for the dry heat shrinkage rate of polyester staple fibers described in the present invention, a receiving groove and a sliding cavity are provided in the heat conduction frame. Through the principle of thermal expansion and contraction of ammonia gas, the automatic rotation of polyester staple fibers during the heating process is realized, ensuring uniform heating of the fibers and improving the accuracy of dry heat treatment. During the cooling process, the contraction of ammonia gas drives air to enter the sliding cavity, further driving the rotation of the driving wheel, preparing for the subsequent measurement.

[0016] For the on-line detection device for the dry heat shrinkage rate of polyester staple fibers described in the present invention, the cooperation of the first driving wheel, the second driving wheel and the embedding frame facilitates the traction effect on the upper end of the polyester staple fibers, realizes the automatic winding of the polyester staple fibers after the measurement is completed, facilitates the transfer of the polyester staple fibers, and avoids the cumbersome manual winding and possible fiber damage.

[0017] The on-line detection device for the dry heat shrinkage rate of polyester staple fibers according to the present invention can conveniently adjust the heights of the orifice frame and the connecting plate through the cooperation of the screw rod and the sliding block, so as to finely adjust the polyester staple fibers, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0019] Figure 2 is a schematic diagram of the connection structure between the heat conduction frame and the clip of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the heat conduction frame of the present invention;

[0021] Figure 4 is a schematic diagram of the connection structure between the limiting frame and the driving wheel of the present invention;

[0022] Figure 5 is a schematic diagram of the structure of the limiting frame of the present invention;

[0023] Figure 6 is a schematic diagram of the connection relationship structure of the cross plate of the present invention;

[0024] Figure 7 is a schematic diagram of the structure of the first driving wheel of the present invention Figure 1 ;

[0025] Figure 8 is a schematic diagram of the structure of the first driving wheel of the present invention Figure 2 。

[0026] Wherein: detector host - 1, light source - 2, projection measurement mechanism - 3, projection display screen - 4, electric push rod - 5, magnetic attraction plate - 6, heat conduction frame - 7, adsorption block - 8, sliding cavity - 9, accommodation groove - 10, push plate - 11, first one-way valve - 12, second one-way valve - 13, driving wheel - 14, clip - 15, limiting frame - 16, screw rod - 17, sliding block - 18, handle - 19, connecting plate - 20, orifice frame - 21, magnetic attraction area - 22, extrusion rod - 23, cross plate - 24, embedding frame - 241, adsorption area - 25, first driving wheel - 26, second driving wheel - 27, embedding groove - 261, cavity - 262, piston plate - 263, sliding rod - 264, return spring - 265, suction hole - 266. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following will be combined with the attached Figures 1 - 8The present invention will be described in detail. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0028] Please refer to Figures 1 to 8 , an on-line detection device for dry heat shrinkage rate of polyester staple fiber of the present invention, comprising a detector host 1, a light source 2 fixedly connected to the front end of the detector host 1, a projection measurement mechanism 3 fixedly connected to the right end of the detector host 1, and a projection display screen 4 fixedly connected to the upper side wall of the detector host 1; the projection measurement mechanism 3 adopts an electric grating measuring instrument, and the projection measurement mechanism 3 is connected to the projection display screen 4.

[0029] Please refer to Figure 1, a side wall of the main body 1 of the detector is bolted with an electric push rod 5, and a magnetic attraction plate 6 is fixedly connected to the telescopic end of the electric push rod 5; the electric push rod 5 drives the heat conduction frame 7 to move through the magnetic attraction plate 6, and through the magnetic attraction between the adsorption block 8 on the heat conduction frame 7 and the magnetic attraction plate 6, the heat conduction frame 7 can be quickly separated from the electric push rod 5; the magnetic attraction plate 6 can specifically be a magnet; the adsorption block 8 is specifically iron; when detecting polyester staple fibers, the adsorption block 8 on the heat conduction frame 7 is adsorbed to the magnetic attraction plate 6 on the electric push rod 5, the electric push rod 5 pushes the heat conduction frame 7 to move, and multiple polyester staple fibers on the heat conduction frame 7 are sequentially aligned with the light source 2 in turn. The projection measurement mechanism 3 electronically displays the fiber length data, and the projection position of each fiber can be observed through the projection display screen 4; then the heat conduction frame 7 is removed and moved to an external oven for heating. When the heat conduction frame 7 is placed in the oven for heating, the temperature in the oven rises and the overall temperature of the heat conduction frame 7 rises through heat transfer. The ammonia gas in the accommodation groove 10 expands due to heat and slowly applies force to drive the push plate 11 to move. The push plate 11 pushes the air to flow, and the air drives the driving wheel 14 to rotate. The air then discharges outward through the first one-way valve 12; the driving wheel 14 drives the clip 15 and the limiting frame 16 to rotate, so that the polyester staple fibers rotate automatically during heating; after heating is completed, the heat conduction frame 7 is taken out of the oven and cooled. During the cooling process, the ammonia gas in the accommodation groove 10 contracts due to cold and drives the push plate 11 to move inward. The push plate 11 extracts external air into the sliding cavity 9 through the second one-way valve 13 and drives the driving wheel 14 to rotate; after cooling is completed, the limiting frame 16 drives the sliding block 18 to be arranged in a cross shape with the heat conduction frame 7, which is convenient for the light source 2 to irradiate the polyester staple fibers. The heat conduction frame 7 is placed on the main body 1 of the detector and connected to the magnetic attraction plate 6 on the electric push rod 5, and the electric push rod 5 drives the heat conduction frame 7 to move, so that the polyester staple fibers on the heat conduction frame 7 are sequentially aligned with the light source 2 in turn. The projection measurement mechanism 3 electronically displays the fiber length data; the length of each fiber filament is measured again by using the main body 1 of the detector, the dry heat shrinkage rate of the fiber filament is calculated according to the length before and after dry heat treatment, and the average value is obtained based on multiple groups of data to obtain the accurate value of the dry heat shrinkage rate of the fiber filament.

[0030] Please refer to Figure 3 and Figure 4 , the magnetic attraction plate 6 is magnetically attracted to the adsorption block 8 on the side wall of the heat conduction frame 7. The inside of the heat conduction frame 7 is hollowed out to form a sliding cavity 9, and the other end of the sliding cavity 9 is communicated with the accommodation groove 10. A push plate 11 is slidably connected to the connection part between the accommodation groove 10 and the sliding cavity 9; ammonia gas is filled in the accommodation groove 10, and the ammonia gas will expand when heated and push the push plate 11 to move, so that the push plate 11 pushes the air in the sliding cavity 9 to discharge outward through the first one-way valve 12, and the air drives the driving wheel 14 to rotate when flowing.

[0031] Please refer to Figure 3 and Figure 4, on the left and right ends of the side wall at the other end of the sliding cavity 9 far from the receiving groove 10, a first one-way valve 12 and a second one-way valve 13 are respectively embedded. The second one-way valve 13 is used for air intake into the sliding cavity 9. A driving wheel 14 is rotatably connected in the sliding cavity 9. The upper end of the connecting shaft at the center of the driving wheel 14 is fixedly connected to the center of the clip 15. The connecting shaft is rotatably connected to the heat-conducting frame 7. A limiting frame 16 is fixedly connected to the side wall of the connecting shaft at the center of the driving wheel 14; when performing a dry heat test on polyester staple fibers, the lower end of the polyester staple fiber is fixed by the clip 15, and then the upper end of the polyester staple fiber slides into the embedding groove 261 in the first driving wheel 26 and contacts the mating ring on the second driving wheel 27. Subsequently, by twisting the first driving wheel 26 to rotate, the first driving wheel 26 drives the polyester staple fiber to move upward, so that the polyester staple fiber as a whole is kept pulled and suspended, and the upper end area of the polyester staple fiber is placed in the suction hole 266 area on the first driving wheel 26; and the first driving wheel 26 is inserted into the mouth-shaped frame 21 through the embedding frame 241. The mouth-shaped frame 21 contacts and magnetically adheres to the cross plate 24 and is fixed on the connecting plate 20. Multiple groups of polyester staple fibers are respectively placed on multiple groups of clips 15 on the heat-conducting frame 7 and the first driving wheel 26; and the height of the mouth-shaped frame 21 and the connecting plate 20 can be adjusted by twisting the handle 19 to drive the screw 17 to rotate. The screw 17 drives the sliding block 18 to move, and the sliding block 18 adjusts the distance between the mouth-shaped frame 21 and the connecting plate 20 and the clip 15, which is convenient for fine-tuning the polyester staple fiber.

[0032] Please refer to Figure 5 and Figure 4 , a screw 17 is rotatably connected in the limiting frame 16. The top of the screw 17 is fixedly connected to the handle 19. The sliding block 18 is threadedly connected to the connecting plate 20 and drives the connecting plate 20 to be slidably connected in the limiting frame 16.

[0033] Please refer to Figure 6 , the side wall of the connecting plate 20 is fixedly connected to the mouth-shaped frame 21. A magnetic adsorption area 22 is embedded in the inner side wall of the mouth-shaped frame 21; an extrusion rod 23 is fixedly connected to the inner side wall of the mouth-shaped frame 21. An embedding frame 241 is slidably connected in the mouth-shaped frame 21. The adsorption area 25 provided on the side wall of the embedding frame 241 is magnetically adsorbed to the magnetic adsorption area 22 on the inner side wall of the mouth-shaped frame 21. The adsorption area 25 is specifically iron, and the magnetic adsorption area 22 is specifically a magnet.

[0034] Please refer to Figures 6 to 8, the embedding frame 241 is rotatably connected to the cross plate 24 through a torsion spring; the embedding frame 241 drives the first driving wheel 26 to be rotatably connected to the cross plate 24, and the other end of the cross plate 24 is rotatably connected with a second driving wheel 27; an embedding groove 261 is embedded on the side wall of the first driving wheel 26, a cavity 262 is formed in a hollow manner inside the first driving wheel 26, a piston plate 263 is slidably connected inside the cavity 262, the side wall of the piston plate 263 is fixedly connected with a sliding rod 264, and the other end of the sliding rod 264 slidably passes through the inner side wall of the first driving wheel 26 and is slidably connected inside the embedding frame 241; a magnet is provided at the contact area between the cross plate 24 and the other end of the mouth-shaped frame 21 away from the connecting plate 20, and an iron block is provided on the mouth-shaped frame 21, so that when the mouth-shaped frame 21 contacts the cross plate 24, the cross plate 24 can be adsorbed on the mouth-shaped frame 21 to prevent the cross plate 24 from rotating; after the measurement is completed, first release the clamping of the lower end of the polyester staple fiber by the clip 15, then remove the cross plate 24 from the mouth-shaped frame 21, the contact between the embedding frame 241 and the mouth-shaped frame 21 disappears, the first driving wheel 26 automatically resets and rotates through the torsion spring, the contact between the sliding rod 264 in the embedding frame 241 and the extrusion rod 23 disappears, the extrusion rod 23 moves outward through the return spring 265, the extrusion rod 23 drives the piston plate 263 to move outward, the piston plate 263 extracts external air through the suction holes 266, and the area where the polyester staple fiber contacts the suction holes 266 is adsorbed in the embedding groove 261; then the first driving wheel 26 automatically resets and rotates through the torsion spring, and through the cooperation of the second driving wheel 27, the first driving wheel 26 drives the lower polyester staple fiber to move upward and be wound on the first driving wheel 26.

[0035] Specifically, the side wall of the sliding rod 264 and the inner side wall of the cavity 262 are respectively fixedly connected with both ends of the return spring 265. A plurality of groups of suction holes 266 are arc-embedded on the inner side wall of the cavity 262, and the plurality of groups of suction holes 266 communicate with the embedding groove 261. A mating ring is annularly arranged on the outer peripheral wall of the second driving wheel 27, and the mating ring is slidably inserted into the embedding groove 261; the material of the mating ring is rubber.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Moreover, the standard parts used in the present invention can all be purchased from the market, the special-shaped parts can be customized according to the records in the specification and the drawings, the specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0037] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online detection device for dry heat shrinkage rate of polyester staple fiber, comprising a detector host, a side wall of the detector host is bolted with an electric push rod, and a telescopic end of the electric push rod is fixedly connected with a magnetic suction plate; Features: The magnetic attraction plate is magnetically attracted to the adsorption block on the side wall of the heat-conducting frame, and the heat-conducting frame is hollowed out to form a sliding cavity, the other end of the sliding cavity is connected to the receiving groove, and the connection between the receiving groove and the sliding cavity is slidably connected with a push plate; A driving wheel is rotatably connected in the sliding cavity, the upper end of the connecting shaft at the center of the driving wheel is fixedly connected to the center of the clamp, and the accommodating groove is filled with ammonia, which expands when heated and indirectly drives the polyester staple fiber to rotate through the driving wheel.

2. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 1, characterized in that: The front end of the detector host is fixedly connected with a light source, the right end of the detector host is fixedly connected with a projection measurement mechanism, and the upper side wall of the detector host is fixedly connected with a projection display screen.

3. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 2, characterized in that: The left and right ends of the side wall of the other end of the sliding cavity away from the accommodating groove are respectively embedded with a first one-way valve and a second one-way valve.

4. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 3, characterized in that: The side wall of the connecting shaft at the center of the driving wheel is fixedly connected with a limiting frame, a screw is rotatably connected in the limiting frame, the top of the screw is fixedly connected to the handle, the sliding block is connected to the inner thread of the connecting plate, and drives the connecting plate to slide in the limiting frame.

5. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 4, characterized in that: The side wall of the connecting plate is fixedly connected to the mouth frame, the inner wall of the mouth frame is embedded with a magnetic attraction area, the inner wall of the mouth frame is fixedly connected with an extrusion rod, an embedded frame is slidably connected in the mouth frame, and the adsorption area on the side wall of the embedded frame is magnetically attracted to the magnetic attraction area on the inner wall of the mouth frame.

6. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 5, characterized in that: The embedded frame is rotatably connected to the transverse plate through a torsion spring; the embedded frame drives the first driving wheel to be rotatably connected to the transverse plate, and the other end of the transverse plate is rotatably connected to the second driving wheel.

7. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 6, characterized in that: An embedding groove is embedded in the side wall of the first driving wheel, and a cavity is hollowed out inside the first driving wheel. A piston plate is slidably connected in the cavity. The side wall of the piston plate is fixedly connected to the sliding rod, and the other end of the sliding rod slides through the inner wall of the first driving wheel and is slidably connected to the embedded frame.

8. The online detection device for dry heat shrinkage of polyester staple fiber according to claim 7, characterized in that: The side wall of the sliding rod and the inner wall of the cavity are fixedly connected to the two ends of the reset spring respectively. The inner wall of the cavity is arc-shaped and embedded with multiple groups of suction holes. The multiple groups of suction holes are connected with the embedded groove. The outer peripheral wall of the second driving wheel is annularly provided with a matching ring, which is slidably inserted into the embedded groove.

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