Ultra-high molecular weight polyethylene plate hot press molding equipment

Abstract

The invention relates to the technical field of plate forming production, in particular to ultra-high molecular weight polyethylene plate hot press forming equipment which comprises a frame body, a regulation and control component and a self-checking component. The regulation and control part comprises a pressure control roller arranged corresponding to the hot pressing roller, a main detection roller arranged corresponding to one conveying roller, pressure control cylinders mounted at the two ends of the pressure control roller, and main regulation and control cylinders mounted at the two ends of the main detection roller; the self-checking part comprises a self-checking roller arranged above the main detection roller, a detection cylinder installed on the frame body and a conduction cylinder connected to the conduction pipe in series. The thickness of the hot-press-formed plate is automatically monitored, real-time adjustment is conducted according to the thickness of the hot-press-formed plate, the surface state of the main detection roller is judged and detected, the situation that a product goes wrong due to the fact that a main detection roller body is poor is reduced, the uniformity degree of the thickness of the hot-press-formed plate is improved, and the production efficiency is improved. Defective products are reduced, the rejection rate is reduced, the production cost is reduced, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate forming production, in particular to a kind of ultra-high molecular weight polyethylene plate hot press forming equipment. BACKGROUND

[0002] Ultra-high molecular weight polyethylene plate refers to the polyethylene with molecular weight of more than 1 million and various additives uniformly mixed and then pressed by sintering. It can be widely used in textile, agriculture, sports and medical devices, etc. due to its high impact resistance, excellent wear resistance and chemical corrosion resistance.

[0003] The existing production method of ultra-high molecular weight polyethylene plate mainly includes mold pressing forming method and extrusion forming method. For the extrusion forming method, the Chinese invention patent with publication number CN117183187A discloses a continuous production device for ultra-high molecular weight polyethylene plate. The device contains a feeder, an anti-sticking belt, guide rollers, hot press rollers, cooling rollers and a cutting machine. Unlike the intermittent production characteristics of mold hot press forming, this production device can achieve continuous production, and by adjusting the distance between the press rollers and the parameters of the cutting machine, the thickness, length and width of the plate can be changed. It realizes continuous production of polyethylene plate by extrusion hot press forming, and processes the continuously hot press formed plate through subsequent processing equipment to form the required size and shape. The hot press rollers are used to hot press form the extruded material, and the specified thickness material is formed. The hot press formed plate is cooled and shaped by the cooling rollers. In actual production, in order to improve the quality of the produced plate, the produced plate needs to be sampled, and then the distance between the hot press rollers is adjusted according to the thickness of the sampled plate, so that the thickness of the hot press formed product cannot be adjusted in time, which easily causes the thickness of part of the plate to be greatly different from the standard thickness, resulting in production loss. SUMMARY

[0004] Therefore, it is necessary to provide an ultra-high molecular weight polyethylene plate hot press forming equipment to solve the problem in the prior art that in actual production, in order to improve the quality of the produced plate, the produced plate needs to be sampled, and then the distance between the hot press rollers is adjusted according to the thickness of the sampled plate, so that the thickness of the hot press formed product cannot be adjusted in time, which easily causes the thickness of part of the plate to be greatly different from the standard thickness, resulting in production loss.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: An ultra-high molecular weight polyethylene plate hot press forming equipment comprises: A frame body is provided with hot press rollers and a plurality of conveying rollers. The hot press rollers are used for hot press processing of the plate, and the conveying rollers are used for conveying the hot press processed plate. The regulating component comprises a pressure control roller corresponding to the hot pressing roller, a main detection roller corresponding to one of the conveying rollers, a pressure control cylinder installed at both ends of the pressure control roller, and a main regulating cylinder installed at both ends of the main detection roller. The middle part of the pressure control cylinder is slidingly connected with a pressure control shaft, and the pressure control shaft is rotationally connected with both ends of the pressure control roller. The main regulating cylinder comprises a cylinder body installed with the frame body, and a regulating shaft slidingly connected with the inner cavity of the cylinder body. The end of the regulating shaft is rotationally connected with the main detection roller, and the regulating shaft is connected with the pressure control cylinder through a conduction pipe. The self-checking component comprises a self-checking roller above the main detection roller, a detection cylinder installed on the frame body, and a conduction cylinder connected in series with the conduction pipe. The inner cavity of the conduction cylinder is installed with an air pressure sensor. The detection cylinder is vertically connected with a connecting rod. The inner cavity of the detection cylinder is installed with a distance sensor corresponding to the connecting rod. Both ends of the self-checking roller are rotationally connected with a conduction plate vertically slidingly connected with the frame body, and the conduction plate is connected with the detection cylinder.

[0006] As a preferred embodiment of the ultra-high molecular weight polyethylene plate hot pressing forming equipment, the frame body is provided with a hot pressing regulator, and the hot pressing regulator is provided with a hot pressing self-adjusting system. The hot pressing self-adjusting system comprises a hot pressing thickness processing unit, and the hot pressing thickness processing unit is respectively signal connected with a thickness change acquisition unit, a self-checking unit and a warning unit. The thickness change acquisition unit is signal connected with an air pressure sensor, and the self-checking unit is signal connected with a distance sensor.

[0007] As a preferred embodiment of the ultra-high molecular weight polyethylene plate hot pressing forming equipment, the inner cavity of the conduction cylinder is slidingly connected with a T-shaped piston plate, and the upper end of the T-shaped piston plate is connected with the conduction pipe at the input end of the conduction cylinder through a plug rod.

[0008] As a preferred embodiment of the ultra-high molecular weight polyethylene plate hot pressing forming equipment, the inner cavity of the conduction cylinder is located outside the damping sleeve of the plug rod, the inner cavity of the conduction cylinder is installed with an electromagnetic valve one opposite to the damping sleeve, the conduction cylinder is connected with a regulating pipe, and the regulating pipe is connected with a booster air pump.

[0009] As a preferred embodiment of the ultra-high molecular weight polyethylene plate hot pressing forming equipment, the regulating pipe is installed with an air pressure gauge, and the regulating pipe is installed with an electromagnetic valve two between the booster air pump. The hot pressing self-adjusting system further comprises a thickness master control unit signal connected with the hot pressing thickness processing unit. The thickness master control unit is signal connected with the booster air pump, the electromagnetic valve two, the electromagnetic valve one and the air pressure sensor.

[0010] As a preferred embodiment of the hot press forming equipment for the ultra-high molecular weight polyethylene plate provided by the present application, the frame body is further provided with a secondary detection roller arranged in parallel with the primary detection roller, a secondary control cylinder identical to the primary control cylinder is mounted on the secondary detection roller, and the end of the control shaft corresponding to the secondary control cylinder is rotatably connected with the secondary detection roller.

[0011] As a preferred embodiment of the hot press forming equipment for the ultra-high molecular weight polyethylene plate provided by the present application, the inner cavity of the adjusting shaft is in communication with the cylinder body, an air pressure gauge is sleeved on each adjusting shaft, a transmission hole is formed on the adjusting shaft corresponding to the air pressure gauge, the two air pressure gauges are in communication with the transmission pipe, an electromagnet two is mounted at the connection between each air pressure gauge and the transmission pipe, and an electromagnet one is mounted on the frame body corresponding to each adjusting shaft.

[0012] As a preferred embodiment of the hot press forming equipment for the ultra-high molecular weight polyethylene plate provided by the present application, a negative pressure hole is formed below the transmission hole of each adjusting shaft, the two air pressure gauges are connected in series through a negative pressure pipe, the negative pressure pipe corresponds to the position of the negative pressure hole, and a negative pressure air pump is connected with the negative pressure pipe.

[0013] As a preferred embodiment of the hot press forming equipment for the ultra-high molecular weight polyethylene plate provided by the present application, the hot press self-adjusting system further comprises a primary-secondary switching unit connected with the hot press thickness processing unit, and the primary-secondary switching unit is connected with the electromagnet two, the electromagnet one and the negative pressure air pump.

[0014] As a preferred embodiment of the hot press forming equipment for the ultra-high molecular weight polyethylene plate provided by the present application, a cooling roller is mounted on the frame body and located downstream of the hot press roller.

[0015] Compared with the prior art, the present application has the following advantages: 1. The hot press forming equipment for the ultra-high molecular weight polyethylene plate provided by the present application can automatically monitor the thickness of the hot press formed plate, adjust in real time according to the thickness of the hot press formed plate, control the thickness of the plate during hot pressing in real time, and detect the surface state of the primary detection roller, thereby reducing the problems caused by the primary detection roller body, improving the uniformity of the plate thickness after hot press forming, improving product quality, reducing the generation of defective products, reducing the waste rate, reducing production cost and improving product quality.

[0016] 2. The ultra-high molecular weight polyethylene plate hot press forming equipment provided by the application can detect the air pressure change state in the cylinder body and the control pressure cylinder cavity, that is, detect the plate thickness change state through the main detection roller, at this time the plate thickness is detected through the position of the main detection roller, in order to improve the detection accuracy, the surface of the main detection roller needs to be kept relatively clean, the surface state of the main detection roller needs to be detected, the main detection roller is controlled to move upwards and contact the self-detection roller, the rotating main detection roller rolls with the surface of the self-detection roller, when the surface of the main detection roller is uneven, the position of the self-detection roller fluctuates, so that the connecting rod moves up and down in the inner cavity of the detection cylinder driven by the conduction plate, and the distance sensor can detect the position of the connecting rod, so as to judge the flatness of the surface of the main detection roller.

[0017] 3. The ultra-high molecular weight polyethylene plate hot press forming equipment provided by the application is provided with a hot press self-adjusting system on the hot press regulator, the thickness change sampling unit, the self-detection unit and the early warning unit cooperate, the air pressure data detected by the air pressure sensor is sent to the thickness change sampling unit in real time, the hot press thickness processing unit judges the air pressure data change degree, preliminarily judges that the main detection roller is contaminated, controls the main detection roller to move upwards and contact the self-detection roller, the surface state of the main detection roller is further judged by the self-detection unit, the plate thickness of the hot press forming is automatically detected, the plate thickness during hot pressing is adjusted in real time, the surface state of the main detection roller is judged and detected, and the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0019] Figure 1 The overall structure schematic diagram provided by the application is shown in the figure. Figure 2 The front view provided by the application is shown in the figure. Figure 3 The schematic diagram of the regulating component and the self-detection component part structure provided by the application is shown in the figure. Figure 4 The schematic diagram of the self-detection component structure provided by the application is shown in the figure. Figure 5 The schematic diagram of the cylinder body and the detection cylinder cross-section structure provided by the application is shown in the figure. Figure 6 The schematic diagram of the control pressure cylinder cross-section structure provided by the application is shown in the figure. Figure 7The cross-sectional structure diagram of the conducting cylinder provided by the present application is shown in the figure. Figure 8 The control principle block diagram of the hot-pressing self-adjusting system provided by the present application is shown in the figure. Figure 9 The motion state diagram of the adjusting shaft and the control shaft when the auxiliary detection roller is self-detected is shown in the figure.

[0020] The figure is marked as follows: 1, frame; 2, hot-pressing roller; 3, conveying roller; 4, pressure control roller; 5, distance sensor; 6, main detection roller; 7, hot-pressing controller; 8, self-detection roller; 9, conducting plate; 10, auxiliary detection roller; 11, detection cylinder; 12, pressure control cylinder; 13, main control cylinder; 14, negative pressure pipe; 15, conducting cylinder; 16, auxiliary control cylinder; 17, control pipe; 18, adjusting shaft; 19, electromagnet I; 20, conducting pipe; 21, air pressure gauge; 22, electromagnetic valve II; 23, electromagnet II; 24, pressure control shaft; 25, cylinder body; 26, control shaft; 27, negative pressure hole; 28, conducting hole; 29, damping sleeve; 30, electromagnetic valve I; 31, air pressure sensor; 32, T-shaped piston plate. DETAILED DESCRIPTION

[0021] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the personnel in the field without making creative efforts should belong to the protection scope of the present application.

[0022] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the personnel in the field without making creative efforts should belong to the protection scope of the present application.

[0023] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] Embodiment one: Please refer to Figures 1-4 , Figure 7 and Figure 9The utility model provides an ultra high molecular weight polyethylene plate hot press forming equipment, including frame body 1, regulation and control components and self -checking components, frame body 1 is installed with hot press roller 2 and a plurality of conveying roller 3, and hot press roller 2 is used to heat pressure processing to plate, and conveying roller 3 is used to convey the plate after heat pressure, and the raw material extruded is heat -pressed through the hot press roller 2 with certain temperature and is heat -pressed into the plate close to the preset thickness, is formed through the subsequent press roller, and the plate after heat -pressing is conveyed through conveying roller 3 and is conveyed to subsequent process.

[0025] It is worth mentioning that, please refer to Figures 1-7 , regulation and control components include the pressure control roller 4 corresponding with hot press roller 2 is arranged, the main detection roller 6 corresponding with one of conveying roller 3 is arranged, the pressure control cylinder 12 is installed at both ends of pressure control roller 4, the main regulation and control cylinder 13 is installed at both ends of main detection roller 6, the middle part of pressure control cylinder 12 is slidably inserted with pressure control shaft 24, and pressure control shaft 24 is rotatably connected with both ends of pressure control roller 4, and main regulation and control cylinder 13 includes the cylinder body 25 installed with frame body 1, and the regulation and control shaft 26 is slidably connected with the inner cavity of cylinder body 25, and the end of regulation and control shaft 26 is rotatably connected with main detection roller 6, and regulation and control shaft 26 is connected with pressure control cylinder 12 through the conduction pipe 20, and the plate after heat pressure is conveyed through a plurality of conveying roller 3, and main detection roller 6 rolls along the upper surface of the plate being conveyed and moves up and down along with the thickness of the plate, and the main detection roller 6 that moves drives the regulation and control shaft 26 connected with it to slide in the inner cavity of cylinder body 25, so that the pressure in the inner cavity of cylinder body 25 changes synchronously with the thickness of the plate; by adjusting the spacing between pressure control roller 4 and corresponding conveying roller 3, the thickness of the plate after heat pressure is adjusted by setting pressure control roller 4; Through the above structural design, the pressure change in the inner cavity of cylinder body 25 is conducted to pressure control cylinder 12 through conduction pipe 20, so that the pressure in the inner cavity of pressure control cylinder 12 changes synchronously, and the pressure in the inner cavity of pressure control cylinder 12 increases to push pressure control shaft 24 and pressure control roller 4 to approach conveying roller 3, so as to reduce the thickness of the plate after heat pressure, and vice versa, the pressure in the inner cavity of pressure control cylinder 12 decreases to drive pressure control shaft 24 and pressure control roller 4 to move away from conveying roller 3, so as to increase the thickness of the plate after heat pressure, through the above design, the thickness of the plate after heat pressure can be automatically monitored, and the thickness of the plate after heat pressure is adjusted in real time, the thickness of the plate during heat pressure is adjusted in real time, the generation of defective products is reduced, the waste rate is reduced, the production cost is reduced and the product quality is improved.

[0026] In addition, the self-checking component comprises a self-checking roller 8 arranged above the main detection roller 6, a detection cylinder 11 mounted on the frame body 1, and a transmission cylinder 15 connected in series on the transmission pipe 20, wherein the transmission cylinder 15 is internally provided with an air pressure sensor 31, the detection cylinder 11 is vertically connected with a connecting rod, the detection cylinder 11 is internally provided with a distance sensor 5 corresponding to the connecting rod, both ends of the self-checking roller 8 are rotatably connected with a transmission plate 9 vertically slidingly connected with the frame body 1, and the transmission plate 9 is connected with the detection cylinder 11. By arranging the transmission cylinder 15, the air pressure change state in the inner cavity of the cylinder body 25 and the pressure control cylinder 12 can be detected, that is, the thickness change state of the plate material passing through the main detection roller 6 can be detected. At this time, the thickness of the plate material is detected by the position of the main detection roller 6. In order to improve the detection accuracy, the surface of the main detection roller 6 needs to be kept relatively clean, and the surface state of the main detection roller 6 needs to be detected. By controlling the upward movement of the main detection roller 6 and the contact with the self-checking roller 8, the rotating main detection roller 6 rolls on the surface of the self-checking roller 8. When the surface of the main detection roller 6 is uneven, the position of the self-checking roller 8 fluctuates, so that the connecting rod is driven by the transmission plate 9 to move up and down in the inner cavity of the detection cylinder 11. The distance sensor 5 can detect the position of the connecting rod, so as to judge the flatness of the surface of the main detection roller 6. Through the above structural design, the main detection roller 6 rolls along the upper surface of the plate material. When the thickness of the plate material is large or small, the frequency of the upward and downward position change of the main detection roller 6 is small. At this time, the air pressure sensor 31 detects that the pressure change in the inner cavity of the transmission cylinder 15 is relatively gentle. When the surface of the main detection roller 6 is stuck with sundries, the air pressure sensor 31 detects that the pressure in the inner cavity of the transmission cylinder 15 fluctuates rapidly, so as to preliminarily judge the surface state of the main detection roller 6 by judging the pressure in the inner cavity of the transmission cylinder 15. When it is preliminarily judged that the surface of the main detection roller 6 is stuck with sundries, the main detection roller 6 is controlled to move upward and contact with the self-checking roller 8, so as to further judge the flatness of the main detection roller 6, realize self-checking of the main detection roller 6, improve the uniformity of the thickness of the plate material after hot pressing, and improve the product quality.

[0027] In the embodiment, please refer to Figure 8The frame body 1 is provided with a hot pressing controller 7, and the hot pressing controller 7 is provided with a hot pressing self-adjusting system. The hot pressing self-adjusting system comprises a hot pressing thickness processing unit. The hot pressing thickness processing unit is respectively connected with a thickness change sampling unit, a self-checking unit and a warning unit. The thickness change sampling unit is connected with the air pressure sensor 31, and the self-checking unit is connected with the distance sensor 5. When the hot pressing forming process is carried out, the extruded raw material is hot pressed by the hot pressing roller 2 with a certain temperature and is extruded and formed by the pressure control roller 4 and the conveying roller 3. In this process, the air pressure sensor 31 detects the air pressure data and sends the air pressure data to the thickness change sampling unit in real time. The thickness change sampling unit feeds back the air pressure data to the hot pressing thickness processing unit. The hot pressing thickness processing unit judges the air pressure data change degree, that is, whether the air pressure data difference in unit time is within the preset range (the hot pressing thickness processing unit is provided with a reasonable change range of the air pressure data difference in unit time fed back by the air pressure sensor 31). When it is judged that the preset range is exceeded, the hot pressing thickness processing unit preliminarily judges that the main detection roller 6 has the surface adhered with sundries. At this time, the main detection roller 6 is controlled to move upward and contact the self-checking roller 8. The hot pressing thickness processing unit sends a self-checking signal to the self-checking unit. The self-checking unit receives the signal fed back by the distance sensor 5 in real time and judges the position state of the detection cylinder 11 through the distance sensor 5. When the main detection roller 6 has the surface adhered with sundries, the self-checking unit detects that the position of the detection cylinder 11 fluctuates rapidly, so that it is judged that the main detection roller 6 has the surface adhered with sundries and the feedback is given to the hot pressing thickness processing unit. Conversely, the self-checking unit detects that the position change of the detection cylinder 11 is within the normal range, judges that the main detection roller 6 has no sundries on the surface and feeds back to the hot pressing thickness processing unit. After receiving the feedback signal, the hot pressing thickness processing unit sends a corresponding reminding signal to the warning unit to remind the operator to process, so as to realize the automatic detection of the thickness of the hot pressing formed plate, the real-time adjustment of the thickness of the plate during hot pressing and the judgment and detection of the surface state of the main detection roller 6, and improve the product quality.

[0028] In addition, please refer to Figure 4 and Figure 7The inner cavity of the conducting cylinder 15 is slidingly connected with a T-shaped piston plate 32. The upper end of the T-shaped piston plate 32 is inserted into the conducting pipe 20 at the input end of the conducting cylinder 15 through a plug rod. The pressure change in the inner cavity of the cylinder body 25 synchronously controls the pressure change in the inner cavity of the conducting pipe 20, thereby controlling the plug rod on the T-shaped piston plate 32 to be inserted into or discharged from the conducting pipe 20, thereby synchronously pushing the T-shaped piston plate 32 to displace in the inner cavity of the conducting cylinder 15, better adjusting the pressure in the inner cavity of the conducting cylinder 15, thereby synchronously adjusting the pressure in the inner cavity of the pressure control cylinder 12. The inner cavity of the conducting cylinder 15 is sleeved with a damping sleeve 29 outside the outer ring of the plug rod. The inner cavity of the conducting cylinder 15 is installed with an electromagnetic valve one 30 opposite to the damping sleeve 29. The electromagnetic valve one 30 generates magnetism when electrified and generates magnetic attraction to the damping sleeve 29. The conducting cylinder 15 is connected with a control pipe 17. The control pipe 17 is connected with a booster air pump. The position of the pressure control roller 4 is actively adjusted, thereby adjusting the thickness of the plate material passing through the pressure control roller 4. The initial position of the pressure control roller 4 is adjusted. At this time, the electromagnetic valve one 30 is controlled to work, thereby magnetically attracting the damping sleeve 29. The damping sleeve 29 is displaced to contact the plug rod on the T-shaped piston plate 32, thereby locking the position of the plug rod and the T-shaped piston plate 32. At this time, the electromagnetic valve two 22 is controlled to be opened. The booster air pump injects gas into the conducting cylinder 15 through the control pipe 17, thereby adjusting the pressure in the inner cavity of the conducting cylinder 15, further controlling the displacement of the pressure control roller 4, adjusting the position of the pressure control roller 4, achieving the purpose of self-control, and not easily affecting the thickness detection of the main detection roller 6, thereby improving the accuracy of the thickness detection of the plate material.

[0029] It is worth mentioning that, please refer to Figure 8, the air pressure gauge 21 is installed on the regulating pipe 17, by setting the air pressure gauge 21, the maintenance personnel can know the air pressure state of the transmission cylinder 15, the electromagnetic valve two 22 is installed between the regulating pipe 17 and the booster air pump, the hot-pressing self-adjusting system further comprises a thickness master control unit connected with the hot-pressing thickness processing unit, the thickness master control unit is connected with the booster air pump, the electromagnetic valve two 22, the electromagnetic valve one 30 and the air pressure sensor 31 respectively, when it is necessary to actively regulate the position of the pressure control roller 4 and adjust the initial position of the pressure control roller 4, the position data of the pressure control roller 4 to be adjusted is input to the hot-pressing thickness processing unit, the hot-pressing thickness processing unit sends the regulating data to the thickness master control unit, the thickness master control unit controls the electromagnetic valve one 30 to work and locks the position of the T-shaped piston plate 32, at the same time, controls the electromagnetic valve two 22 to open and the booster air pump to work, detects the pressure in the transmission cylinder 15, i.e. the pressure in the pressure control cylinder 12, through the air pressure sensor 31, when the thickness master control unit judges that the internal pressure of the transmission cylinder 15 reaches the specified pressure, the thickness master control unit controls the booster air pump to stop working and the electromagnetic valve two 22 to close, realizes the function of actively controlling the position of the pressure control roller 4 and adjusts the hot-pressing thickness of the plate material. In the embodiment, the cooling roller is installed on the frame body 1 and is located downstream of the hot-pressing roller 2, after the plate material is hot-pressed by the hot-pressing roller 2 and the thickness is adjusted by the pressure control roller 4, the plate material is cooled and shaped by the cooling roller, so that the plate material with stable thickness is produced.

[0030] Embodiment two The ultrahigh molecular weight polyethylene plate hot-pressing forming equipment provided in embodiment one is further optimized, and the difference from embodiment one is that when the main detection roller 6 is self-detected, the thickness of the plate material cannot be detected in time in the self-detection process, and there is a problem that the thickness of the plate material does not meet the standard, in order to solve the above problem, please refer to Figures 1-9 The frame body 1 is further provided with a vice detection roller 10 arranged in parallel with the main detection roller 6, the vice detection roller 10 is installed with a vice regulating cylinder 16 which has the same structure as the main regulating cylinder 13, and the end of the regulating shaft 26 corresponding to the vice regulating cylinder 16 is rotationally connected with the vice detection roller 10, the self-detection roller 8 is provided with two and is arranged above the main detection roller 6 and the vice detection roller 10 respectively, through the parallel arrangement of the main detection roller 6 and the vice detection roller 10, the vice detection roller 10 can detect the plate material when it is in contact with the plate material, and the vice detection roller 10 can be self-detected when it is in contact with the self-detection roller 8; therefore, when the main detection roller 6 is self-detected, the vice detection roller 10 is switched to detect the plate material by controlling the vice detection roller 10 to be in contact with the plate material, the time gap of non-plate material detection is reduced, and the product quality is improved.

[0031] It is worth mentioning that each cylinder 25 is vertically inserted with an adjusting shaft 18, the inner cavity of the adjusting shaft 18 is communicated with the cylinder 25, a gas pressure gauge 21 is sleeved on each adjusting shaft 18, a transmission hole 28 is arranged on the adjusting shaft 18 corresponding to the gas pressure gauge 21, both gas pressure gauges 21 are communicated with the transmission pipe 20, an electromagnet two 23 is installed at the connection between each gas pressure gauge 21 and the transmission pipe 20, an electromagnet one 19 is installed on the frame body 1 corresponding to each adjusting shaft 18, when the main detection roller 6 contacts with the plate material to detect the plate material, the transmission hole 28 on the adjusting shaft 18 corresponding to the main detection roller 6 is communicated with the gas pressure gauge 21, the corresponding electromagnet two 23 is controlled to be opened, so as to control the main control cylinder 13 to be communicated with the transmission pipe 20; when it is needed to control the main detection roller 6 to move up and contact with the self-checking roller 8, at this time, the electromagnet one 19 is controlled to be electrified to generate magnetism, the adjusting shaft 18 corresponding to the main detection roller 6 is controlled to move up, at this time, the transmission hole 28 is dislocated with the gas pressure gauge 21, so as to cut off the communication between the main control cylinder 13 and the transmission pipe 20, in the same way, the adjusting shaft 18 corresponding to the auxiliary control cylinder 16 can be controlled to make the transmission hole 28 on the corresponding adjusting shaft 18 communicated with the gas pressure gauge 21, so as to switch to the detection of the auxiliary detection roller 10; at this time, the main control cylinder 13 is in a closed state, the pressure inside the main control cylinder 13 is controlled to be reduced, at this time, the adjusting shaft 26 drives the main detection roller 6 to move up and contact with the self-checking roller 8, so as to switch to the detection of the auxiliary detection roller 10 and the self-checking of the main detection roller 6, which is convenient for switching the plate material detection and self-checking operation of the main detection roller 6 or the auxiliary detection roller 10.

[0032] In addition, each adjusting shaft 18 is provided with a negative pressure hole 27 below the conducting hole 28, two air pressure gauges 21 are connected in series through a negative pressure pipe 14, the negative pressure pipe 14 is in position correspondence with the negative pressure hole 27, the negative pressure pipe 14 is connected with a negative pressure air pump, when the adjusting shaft 18 is controlled to move upwards so that the conducting hole 28 is dislocated with the inner cavity of the air pressure gauge 21, at this time, the negative pressure hole 27 on the adjusting shaft 18 is communicated with the negative pressure pipe 14, through the working of the negative pressure air pump, the inner cavity of the corresponding cylinder body 25 is extracted into negative pressure through the negative pressure pipe 14, and the corresponding main detection roller 6 or the auxiliary detection roller 10 on the bottom is controlled to move upwards by the adjusting shaft 26 to contact the self-checking roller 8, so that the corresponding main detection roller 6 or the auxiliary detection roller 10 is controlled to move upwards for self-checking, the hot-pressing self-adjusting system further comprises a main-vice switching unit connected with the hot-pressing thickness processing unit, the main-vice switching unit is connected with the electromagnet two 23, the electromagnet one 19 and the negative pressure air pump, when the main detection roller 6 is in contact with the surface of the plate material to detect the thickness of the plate material, when the hot-pressing thickness processing unit preliminarily judges that the main detection roller 6 has surface dirt, at this time, the hot-pressing thickness processing unit sends a switching signal to the main-vice switching unit, the main-vice switching unit controls the electromagnet two 23 corresponding to the main detection roller 6 to be closed and the electromagnet one 19 to be electrified, and controls the negative pressure air pump to work to extract the cylinder body 25 on the main adjusting cylinder 13 to negative pressure, so that the main detection roller 6 moves upwards to contact the self-checking roller 8 for self-checking; at the same time, the main-vice switching unit controls the electromagnet two 23 corresponding to the auxiliary detection roller 10 to be opened and the electromagnet one 19 to be de-energized, at this time, the adjusting shaft 18 corresponding to the auxiliary adjusting cylinder 16 moves downwards to reset, the auxiliary detection roller 10 is in contact with the surface of the plate material to detect the thickness of the plate material, so that the surface state of the main detection roller 6 or the auxiliary detection roller 10 is automatically judged, self-checking is performed, the positions of the main detection roller 6 and the auxiliary detection roller 10 are switched, the influence on the hot-pressing thickness detection of the plate material is reduced, and the purpose of uninterrupted detection and control is achieved.

Claims

1. A hot-pressing molding equipment for ultra-high molecular weight polyethylene sheets, characterized in that, include: A frame (1) is provided, on which a hot press roller (2) and a plurality of conveying rollers (3) are installed. The hot press roller (2) is used for hot pressing the sheet metal, and the conveying rollers (3) are used for conveying the hot-pressed sheet metal. The control component includes a pressure control roller (4) corresponding to the hot press roller (2), a main detection roller (6) corresponding to one of the conveying rollers (3), a pressure control cylinder (12) installed at both ends of the pressure control roller (4), and a main control cylinder (13) installed at both ends of the main detection roller (6). A pressure control shaft (24) is slidably inserted into the middle of the pressure control cylinder (12). The pressure control shaft (24) is rotatably connected to both ends of the pressure control roller (4). The main control cylinder (13) includes a cylinder body (25) installed with the frame (1) and a control shaft (26) slidably connected to the inner cavity of the cylinder body (25). The end of the control shaft (26) is rotatably connected to the main detection roller (6). The control shaft (26) is connected to the pressure control cylinder (12) through a transmission pipe (20). The self-testing component includes a self-testing roller (8) placed above the main test roller (6), a test cylinder (11) mounted on the frame (1), and a transmission cylinder (15) connected in series on the transmission tube (20). A pressure sensor (31) is installed in the inner cavity of the transmission cylinder (15). A connecting rod is vertically inserted into the test cylinder (11). A distance sensor (5) corresponding to the connecting rod is installed in the inner cavity of the test cylinder (11). The two ends of the self-testing roller (8) are rotatably connected to a transmission plate (9) that is vertically slidably connected to the frame (1). The transmission plate (9) is connected to the test cylinder (11).

2. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 1, characterized in that, The frame (1) is equipped with a hot-press controller (7), and the hot-press controller (7) is equipped with a hot-press self-adjustment system. The hot-press self-adjustment system includes a hot-press thickness processing unit. The hot-press thickness processing unit is connected to a thickness change acquisition unit, a self-test unit and an early warning unit. The thickness change acquisition unit is connected to a pressure sensor (31), and the self-test unit is connected to a distance sensor (5).

3. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 2, characterized in that, The inner cavity of the conduction cylinder (15) is slidably connected to a T-shaped piston plate (32), and the upper end of the T-shaped piston plate (32) is inserted into the conduction tube (20) located at the input end of the conduction cylinder (15) via a plug rod.

4. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 3, characterized in that, The inner cavity of the transmission cylinder (15) is fitted with a damping sleeve (29) on the outer ring of the insertion rod. The inner cavity of the transmission cylinder (15) is equipped with a solenoid valve (30) opposite to the damping sleeve (29). The transmission cylinder (15) is connected to a control tube (17), and the control tube (17) is connected to a booster air pump.

5. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 4, characterized in that, A pressure gauge (21) is installed on the control tube (17), and a second solenoid valve (22) is installed between the control tube (17) and the booster pump. The hot-press self-regulating system also includes a thickness control unit that is signal-connected to the hot-press thickness processing unit. The thickness control unit is signal-connected to the booster pump, the second solenoid valve (22), the first solenoid valve (30), and the pressure sensor (31).

6. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 2, characterized in that, The frame (1) is also provided with a secondary detection roller (10) arranged parallel to the main detection roller (6). The secondary detection roller (10) is equipped with a secondary control cylinder (16) with the same structure as the main control cylinder (13). The end of the control shaft (26) corresponding to the secondary control cylinder (16) is rotatably connected to the secondary detection roller (10). There are two self-inspection rollers (8), which are respectively placed above the corresponding main detection roller (6) and secondary detection roller (10).

7. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 6, characterized in that, Each of the cylinders (25) is vertically connected to an adjusting shaft (18), the inner cavity of the adjusting shaft (18) is connected to the cylinder (25), each adjusting shaft (18) is fitted with a pressure gauge (21), a conduction hole (28) is opened on the adjusting shaft (18) corresponding to the pressure gauge (21), both pressure gauges (21) are connected to the conduction pipe (20), an electromagnet (23) is installed at the connection between each pressure gauge (21) and the conduction pipe (20), and an electromagnet (19) is installed on the frame (1) corresponding to each adjusting shaft (18).

8. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 7, characterized in that, Each of the adjustment shafts (18) is provided with a negative pressure hole (27) below the conduction hole (28). The two pressure gauges (21) are connected in series through a negative pressure pipe (14). The negative pressure pipe (14) is positioned corresponding to the negative pressure hole (27). A negative pressure air pump is connected to the negative pressure pipe (14).

9. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 8, characterized in that, The hot-press self-adjusting system also includes a main-slave switching unit that is signal-connected to the hot-press thickness processing unit. The main-slave switching unit is signal-connected to electromagnet two (23), electromagnet one (19) and negative pressure air pump, respectively.

10. The ultra-high molecular weight polyethylene sheet hot pressing molding equipment according to claim 1, characterized in that, A cooling roller is installed on the frame (1), and the cooling roller is located downstream of the hot pressing roller (2).

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