Cloth monitoring device for polyurethane insulation board continuous production line

Abstract

The utility model discloses a cloth monitoring device for a continuous production line of polyurethane insulation boards, which comprises a bottom plate, a workbench, a moving mechanism, a detection mechanism, a laminating machine and a PLC (programmable logic controller), the moving mechanism comprises two sliding rails and two racks which are arranged at the top end of the bottom plate, bases are clamped on the sliding rails in a sliding manner, vertical plates are arranged at the top ends of the two bases, and the vertical plates are arranged on the workbench. A cross beam and a mounting plate are arranged at the upper parts and the lower parts of the two vertical plates respectively, transmission assemblies are arranged on the two bases respectively, a power assembly is arranged on the mounting plate, the detection mechanism comprises a mounting block, an infrared distance meter, a camera and a pouring gun head are arranged on the mounting block, and the infrared distance meter and the laminating machine are electrically connected with a PLC (Programmable Logic Controller) respectively. A mounting frame is arranged between the moving mechanism and the laminating machine, a first uncoiler is arranged at the top end of the mounting frame, an upper coiled material is coiled on the first uncoiler, a second coiler is arranged at the top end of the bottom plate, and a lower coiled material is coiled on the second coiler; according to the utility model, uniform material distribution can be realized, and the quality of the polyurethane insulation board is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal insulation material processing, especially a cloth monitoring device for polyurethane insulation board continuous production line. BACKGROUND

[0002] The existing rigid polyurethane insulation board is generally produced through a continuous production line, and in the continuous production process, the flow of raw materials, the speed of the laminating machine track plate and the growth speed of polyurethane foam are very crucial to the quality of the insulation board. The surface of the formed polyurethane insulation board is relatively flat, without concave or wrinkled conditions, otherwise a large number of cavities may appear on the surface of the board, the foam in the board may be extruded, the adhesion effect with the surface layer material in the later period and the dimensional stability may be affected, and the product quality and the continuous production efficiency of the polyurethane insulation board may be directly affected. At present, the common method is that the operator observes the growth state of the insulation board on the continuous production line based on experience, and measures the time when the polyurethane foam contacts the top of the interlayer space in the laminating machine through a stopwatch, judges whether the top contact time meets the standard time, and then adjusts the speed of the laminating machine track plate. This method is very laborious and time-consuming, and needs to be measured many times. The measured data result is not particularly accurate, and the applicability of different polyurethane foaming materials is not high due to the different foaming times of different polyurethane foaming materials. Therefore, we propose a cloth monitoring device for polyurethane insulation board continuous production line. SUMMARY

[0003] The utility model aims at providing a cloth monitoring device for polyurethane insulation board continuous production line to solve the problems in the background art.

[0004] To solve the above technical problems, the utility model provides technical scheme as follows: A kind of cloth monitoring device for polyurethane insulation board continuous production line, including bottom plate, workstation, moving mechanism, detection mechanism, laminator and PLC controller, the moving mechanism includes the slide rail being set to the top of bottom plate both sides, rack is respectively fixed at the top of bottom plate in two slide rail inner sides, base is respectively slidably connected on two slide rails, two the top of base is respectively provided with vertical plate, the upper portion and lower portion of two vertical plates are respectively provided with crossbeam and mounting plate, transmission assembly is respectively provided on the opposite side wall of two bases, power assembly that is matched with transmission assembly is provided on the mounting plate, the workstation is between crossbeam and mounting plate, the laminator is located in the moving mechanism side of bottom plate top, the laminator is electrically connected with PLC controller, the detection mechanism includes the mounting block being set to the middle part of crossbeam bottom, infrared range finder and camera are respectively provided on the side of mounting block towards laminator, the infrared range finder is electrically connected with PLC controller, pouring gun head is fixed on the side of mounting block away from laminator, mounting rack is arranged between the moving mechanism and the laminator, first uncoiler is provided at the top of mounting rack, the first uncoiler is wound with upper coiled material, second coiler is provided at the side of bottom plate top located workstation, the second coiler is wound with lower coiled material, one end of lower coiled material passes through workstation and one end of upper coiled material is placed in laminator synchronously.

[0005] As a preferred scheme of the cloth monitoring device for polyurethane insulation board continuous production line, the infrared range finder and the camera are respectively fixed on the fixed frame, the fixed frame is fixed on the mounting block by screws, and the camera is electrically connected with the display.

[0006] As a preferred scheme of the cloth monitoring device for polyurethane insulation board continuous production line, the laminator includes an upper track plate and a lower track plate, the installation height of the infrared range finder is 5mm-10mm lower than the bottom end of the upper track plate, and the installation height of the camera is 2cm-3cm higher than the top end of the lower track plate.

[0007] As a preferred scheme of the cloth monitoring device for polyurethane insulation board continuous production line, the power assembly includes first support blocks arranged on the side walls of the mounting plate, first bearing seats are respectively arranged in the middle portions of the two first support blocks, shafts are fixed in the inner rings of the two first bearing seats, first bevel gears are respectively arranged at the two ends of the shafts, first gears are arranged on the outer walls of the shafts, a rotating motor is arranged on the side wall of the mounting plate, a second gear is arranged at the output end of the rotating motor, the second gear is engaged with the first gear, and the rotating motor is electrically connected with the PLC controller.

[0008] As a kind of preferred scheme of the polyurethane insulation board continuous production line cloth monitoring device of the utility model, wherein: the transmission assembly includes the second support block being arranged to the base side wall, the second support block inside is provided with second bearing seat, the second bearing seat inside is respectively provided with rotating column, the rotating column top is provided with the second bevel gear meshing with first bevel gear, the rotating column bottom is provided with third gear, and the third gear is meshed with rack.

[0009] As a kind of preferred scheme of the polyurethane insulation board continuous production line cloth monitoring device of the utility model, wherein: the workbench bottom four corner places are respectively provided with the support leg fixed to the top of bottom plate.

[0010] The utility model has the beneficial effects that: PLC controller will provide the time that the foam produced by polyurethane foaming raw material contacts the top of interlayer inside laminating machine according to the distance measured by infrared range finder and the production line speed generated by laminating machine, and operator can adjust the speed of laminating machine in time according to this, provide more intuitive production requirement judgment standard for operator, greatly reduce the operation difficulty, and realize cloth uniformity, ensure the quality of insulation board, for polyurethane foaming raw material with longer foaming time, can increase the distance between pouring gun head and laminating machine by moving mobile mechanism to set position, avoid polyurethane foaming raw material from growing after entering interlayer inside laminating machine, and then cause foam extrusion, cause insulation board surface defect, foam shrinkage and other quality problems. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can be obtained according to these drawings without paying creative labor intensity. Wherein:

[0012] Figure 1 It is a kind of polyurethane insulation board continuous production line cloth monitoring device structure diagram.

[0013] Figure 2 It is a kind of polyurethane insulation board continuous production line cloth monitoring device side view.

[0014] Figure 3 It is a kind of polyurethane insulation board continuous production line cloth monitoring device mobile mechanism structure diagram.

[0015] Figure 4 It is Figure 3 A in the enlarged view.

[0016] Figure 5It is a schematic view of the structure of a transmission assembly and a power assembly in a cloth monitoring device for a polyurethane insulation board continuous production line. DETAILED DESCRIPTION

[0017] The utility model will be specifically introduced below in combination with the drawings and examples.

[0018] Referring to Figures 1-5 The embodiment is a cloth monitoring device for a polyurethane insulation board continuous production line, which comprises a bottom plate 1, a workbench 2, a moving mechanism 3, a detection mechanism 4, a laminating machine 5, and a PLC controller. The moving mechanism 3 comprises slide rails 301 arranged on both sides of the top end of the bottom plate 1. The top end of the bottom plate 1 inside the two slide rails 301 is fixed with racks 302 respectively. The two slide rails 301 are respectively slidably connected with bases 303. The top end of the two bases 303 is respectively provided with vertical plates 303a. The upper and lower parts of the two vertical plates 303a are respectively provided with cross beams 303b and mounting plates 303c. The opposite side walls of the two bases 303 are respectively provided with transmission assemblies 304. The mounting plate 303c is provided with power assemblies 305 matched with the transmission assemblies 304. The workbench 2 is located between the cross beam 303b and the mounting plate 303c. The laminating machine 5 is located on one side of the moving mechanism 3 at the top end of the bottom plate 1. The laminating machine 5 is electrically connected with the PLC controller. The detection mechanism 4 comprises mounting blocks 401 arranged at the middle part of the bottom end of the cross beam 303b. The side of the mounting block 401 facing the laminating machine 5 is respectively provided with an infrared range finder 402 and a camera 403. The infrared range finder 402 is electrically connected with the PLC controller. The side of the mounting block 401 away from the laminating machine 5 is fixed with a pouring gun head 404. A mounting rack 6 is arranged between the moving mechanism 3 and the laminating machine 5. The top end of the mounting rack 6 is provided with a first unwinder 601. The first unwinder 601 winds an upper coiled material 602. The top end of the bottom plate 1 is provided with a second unwinder 7 on one side of the workbench 2. The second unwinder 7 winds a lower coiled material 701. One end of the lower coiled material 701 passes through the workbench 2 and is synchronously placed in the laminating machine 5 with one end of the upper coiled material 602.

[0019] The polyurethane foaming raw material is supplied to the pouring gun head 404 through the pipeline, one end of the lower roll 701 is synchronously placed in the laminating machine 5 with one end of the upper roll 602 through the workbench 2, the laminating machine 5 is opened under the control of the PLC controller, the upper roll 602 and the lower roll 701 are moved together by the laminating machine 5 (the laminating machine is prior art, which will not be repeated here), the polyurethane foaming raw material is sprayed on the lower roll 701 by the pouring gun head 404, the polyurethane foaming raw material starts to foam and grow on the lower roll 701, and the foaming and growing process of the rigid polyurethane insulation board is completed after the polyurethane foaming raw material in the laminating machine 5 enters the inner layer and foams and grows to contact the top of the inner layer of the laminating machine 5. When the polyurethane foaming raw material foams and grows to contact the top of the inner layer of the laminating machine 5, the infrared distance meter 402 can measure the distance from the pouring gun head 404 to the top of the inner layer of the laminating machine 5, and the data obtained is transmitted to the PLC controller. The PLC controller calculates the time from the pouring gun head 404 to the top of the inner layer of the laminating machine 5 according to the running speed of the laminating machine 5, and compares the standard time to quickly determine whether the foaming and growing time of the polyurethane foaming raw material meets the production requirements. If the time calculated from the data measured by the infrared distance meter 402 is much greater than the standard time, it indicates that the polyurethane foam has stopped growing when it enters the inner layer of the laminating machine 5, but has not yet touched the top of the inner layer of the laminating machine 5, which will cause quality problems such as empty board. If the time calculated from the data measured by the infrared distance meter 402 is much less than the standard time, it indicates that the polyurethane foam has a lot of growing space after entering the inner layer of the laminating machine 5, which will cause quality problems such as foam extrusion, surface defects of the insulation board, and foam shrinkage. Therefore, the PLC controller can automatically adjust the speed of the laminating machine 5 according to the measured data, so that the time calculated from the data measured by the infrared distance meter 402 is equal to or close to the standard time. At this time, the quality of the polyurethane insulation cup produced is qualified. If the polyurethane foaming raw material with a longer foaming time is replaced, the power assembly 305 can transmit power to the transmission assembly 304, and the two bases 303 can be moved away from the laminating machine 5 on the slide rail 301 to increase the distance between the pouring gun head 404 and the laminating machine 5, so as to avoid the polyurethane foaming raw material from continuously growing after entering the inner layer of the laminating machine, which will cause quality problems such as foam extrusion, surface defects of the insulation board, and foam shrinkage.

[0020] In the embodiment, the infrared distance meter 402 and the camera 403 are fixed on the fixed frame 405, the fixed frame 405 is fixed on the mounting block 401 by screws, and the camera 403 is electrically connected with the display.

[0021] The camera 403 feeds back the picture to the staff through the display, and the camera 403 can intuitively present the uniformity of the space in the inner layer of the laminating machine 5 and the growth state of the foam

[0022] In this embodiment, the laminating machine 5 comprises an upper track plate 501 and a lower track plate 502, the mounting height of the infrared range finder 402 is 5-10 mm lower than the bottom end of the upper track plate 501, and the mounting height of the camera 403 is 2-3 cm higher than the top end of the lower track plate 502.

[0023] In this embodiment, the power assembly 305 comprises first supporting blocks 305a arranged on both sides of the side wall of the mounting plate 303c, first bearing seats 305b are arranged in the two first supporting blocks 305a respectively, a rotating shaft 305c is fixed in the inner rings of the two first bearing seats 305b, first bevel gears 305d are arranged at both ends of the rotating shaft 305c respectively, a first gear 305e is arranged on the outer wall of the rotating shaft 305c, a rotating motor 305f is arranged on the side wall of the mounting plate 303c, a second gear 305f-1 is arranged on the output end of the rotating motor 305f, the second gear 305f-1 is engaged with the first gear 305e, and the rotating motor 305f is electrically connected with the PLC controller.

[0024] The rotating motor 305f is controlled by the PLC controller to rotate, the second gear 305f-1 on the output end of the rotating motor 305f drives the first gear 305e on the outer wall of the rotating shaft 305c to rotate, and then drives the first bevel gears 305d at both ends of the rotating shaft 305c to rotate.

[0025] In this embodiment, the transmission assembly 304 comprises a second supporting block 304a arranged on the side wall of the base 303, a second bearing seat 304b is arranged in the second supporting block 304a, rotating columns 304c are arranged in the second bearing seat 304b respectively, second bevel gears 304d engaged with the first bevel gears 305d are arranged at the top ends of the rotating columns 304c, third gears 304e are arranged at the bottom ends of the rotating columns 304c, and the third gears 304e are engaged with the rack 302.

[0026] Since the second bevel gears 304d are engaged with the first bevel gears 305d, the rotation of the first bevel gears 305d can drive the second bevel gears 304d to rotate, and then drive the rotating columns 304c to rotate, the rotating columns 304c drive the third gears 304e to rotate, and since the third gears 304e are engaged with the rack 302, the third gears 304e can drive the base 303 to move on the slide rail 301 when the third gears 304e rotate.

[0027] In this embodiment, support legs 201 fixed to the top end of the bottom plate 1 are arranged at the four corners of the bottom end of the workbench 2 respectively.

[0028] Working principle: the polyurethane foaming raw materials are supplied to the pouring gun head 404 through the pipeline, one end of the lower coiled material 701 is synchronously placed in the laminating machine 5 with one end of the upper coiled material 602 through the workbench 2, the laminating machine 5 is opened under the control of the PLC controller, the upper and lower caterpillar plates 501 and 502 in the laminating machine 5 (the laminating machine is prior art, which is not described here) pull the upper and lower coiled materials 602 and 701 to move together, the pouring gun head 404 sprays the polyurethane foaming raw materials on the lower coiled material 701, the polyurethane foaming raw materials start to foam and grow on the lower coiled material 701, until the interlayer between the upper and lower caterpillar plates 501 and 502 in the laminating machine 5, the polyurethane foaming raw materials in the interlayer of the laminating machine 5 foam and grow to contact the bottom of the upper caterpillar plate 501 in the laminating machine 5, the infrared range finder 402 can measure the distance from the pouring gun head 404 to the polyurethane foaming raw materials foaming to contact the upper caterpillar plate 501 in the laminating machine 5, the data obtained is transmitted to the PLC controller, the PLC controller calculates the time from the pouring gun head 404 to the foam contacting the bottom of the upper caterpillar plate 501 in the laminating machine 5 according to the running speed of the laminating machine 5, and compares the standard time to quickly judge whether the polyurethane foaming raw materials foaming touch time meets the production requirements, if the time calculated by the data measured by the infrared range finder 402 is much larger than the standard time, it means that the polyurethane foam growth has stopped but has not contacted the bottom of the upper caterpillar plate 501 in the laminating machine 5 when entering the interlayer of the laminating machine 5, which will cause empty board and other quality problems, if the time calculated by the data measured by the infrared range finder 402 is much smaller than the standard time, it means that the polyurethane foam has a lot of growth space after entering the interlayer of the laminating machine 5, which will cause foam extrusion and cause quality problems such as insulation board surface defects and foam shrinkage, so the PLC controller can automatically adjust the speed of the laminating machine 5 according to the measured data, so that the time calculated by the data measured by the infrared range finder 402 is equal to or close to the standard time, at this time the quality of the polyurethane insulation cup produced is qualified;If the polyurethane foaming raw material with longer foaming time is replaced, the rotating motor 305f is controlled by the PLC controller to rotate, the second gear 305f-1 at the output end of the rotating motor 305f drives the first gear 305e on the outer wall of the rotating shaft 305c to rotate, and then drives the first bevel gear 305d at both ends of the rotating shaft 305c to rotate. Since the second bevel gear 304d is engaged with the first bevel gear 305d, the rotation of the first bevel gear 305d can drive the second bevel gear 304d to rotate, and then drive the rotating column 304c to rotate. The rotating column 304c drives the third gear 304e to rotate, and since the third gear 304e is engaged with the rack 302, the rotation of the third gear 304e can drive the base 303 to move away from the laminating machine 5 on the slide rail 301. After the base 303 moves to the set position, the rotating motor 305f is stopped, and the base 303 away from the laminating machine 5 can increase the distance between the pouring gun head 404 and the laminating machine 5, thereby avoiding the polyurethane foaming raw material from growing continuously after entering the interlayer of the laminating machine 5, thereby causing the foam to be extruded, resulting in surface defects of the insulation board, foam shrinkage and other quality problems. At this time, the distance measuring operation of the above-mentioned infrared distance meter 402 is continued, and the time is adjusted by the PLC controller according to the running speed of the laminating machine 5, so that the finally calculated time is equal to or close to the standard time.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application. They should be covered in the scope of the claims of the present application.

Claims

1. A cloth monitoring device for a polyurethane insulation board continuous production line, characterized by: The utility model relates to a laminating machine detection device, including bottom plate (1), workstation (2), moving mechanism (3), detection mechanism (4), laminating machine (5) and PLC controller, moving mechanism (3) includes the slide rail (301) of setting in the top both sides of bottom plate (1), the top of bottom plate (1) inside in two slide rail (301) is fixed with rack (302) respectively, two slide rail (301) are slidably connected with base (303) respectively, two base (303) top are provided with vertical board (303a) respectively, the upper portion and the lower portion of two vertical board (303a) are provided with crossbeam (303b) and mounting plate (303c) respectively, two base (303) opposite side walls are provided with transmission assembly (304) respectively, the mounting plate (303c) is provided with power assembly (305) with transmission assembly (304) cooperation, workstation (2) is located between crossbeam (303b) and mounting plate (303c), laminating machine (5) is located in the moving mechanism (3) one side of bottom plate (1) top, laminating machine (5) is electrically connected with PLC controller, detection mechanism (4) includes the mounting block (401) of setting in the bottom middle part of crossbeam (303b), the side of mounting block (401) towards laminating machine (5) is provided with infrared range finder (402) and camera (403) respectively, infrared range finder (402) is electrically connected with PLC controller, the side of mounting block (401) away from laminating machine (5) is fixed with pouring gun head (404), moving mechanism (3) and laminating machine (5) between being provided with mounting bracket (6), the top of mounting bracket (6) is provided with first uncoiler (601), and first uncoiler (601) is rolled with upper coiled material (602), the top of bottom plate (1) is provided with second coiler (7) in the one side of workstation (2), and second coiler (7) is rolled with lower coiled material (701), and one end of lower coiled material (701) passes through workstation (2) and is placed in laminating machine (5) with the one end of upper coiled material (602) synchronization.

2. The cloth monitoring device for a polyurethane insulation board continuous production line according to claim 1, characterized in that: Infrared range finder (402) and camera (403) are fixed on fixed frame (405) respectively, fixed frame (405) is fixed on mounting block (401) through screw, camera (403) is electrically connected with display.

3. The fabric monitoring device for a polyurethane insulation board continuous production line according to claim 1, characterized in that: Laminating machine (5) includes upper track plate (501) and lower track plate (502), the installation height of infrared range finder (402) is lower than the bottom of upper track plate (501) 5mm-10mm, the installation height of camera (403) is higher than the top of lower track plate (502) 2cm-3cm.

4. The fabric monitoring device for a polyurethane insulation board continuous production line according to claim 1, characterized in that: The power assembly (305) comprises first supporting blocks (305a) arranged on both sides of the side wall of the mounting plate (303c), first bearing seats (305b) are arranged in the two first supporting blocks (305a) respectively, the inner rings of the two first bearing seats (305b) are fixedly provided with rotating shafts (305c), the two ends of the rotating shaft (305c) are respectively provided with first bevel gears (305d), the outer wall of the rotating shaft (305c) is provided with a first gear (305e), the side wall of the mounting plate (303c) is provided with a rotating motor (305f), the output end of the rotating motor (305f) is provided with a second gear (305f-1), the second gear (305f-1) is meshed with the first gear (305e), and the rotating motor (305f) is electrically connected with the PLC controller.

5. The fabric monitoring device for a polyurethane insulation board continuous production line according to claim 4, characterized in that: The transmission assembly (304) comprises a second supporting block (304a) arranged on the side wall of the base (303), a second bearing seat (304b) is arranged in the second supporting block (304a), rotating columns (304c) are arranged in the second bearing seat (304b) respectively, the top ends of the rotating columns (304c) are provided with second bevel gears (304d) which are meshed with the first bevel gears (305d), and the bottom ends of the rotating columns (304c) are provided with third gears (304e) which are meshed with the rack (302).

6. The fabric monitoring device for a polyurethane insulation board continuous production line according to claim 1, characterized in that: The workbench (2) is provided with supporting legs (201) fixed to the top end of the bottom plate (1) at the four corners of the bottom end.

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