Rolling forming equipment

Abstract

The utility model relates to roll forming equipment. The rolling forming equipment comprises a rolling unit which comprises a pressing roller and a roller telescopic piece; the release unit comprises a release plate and a plate expansion piece; the lower conveying belt unit is used for conveying a powder layer in the conveying direction of the lower conveying belt unit; a speed detection unit for detecting the speed of a powder layer is arranged on the lower conveying belt unit; the second feeding detection unit is arranged at the feeding end of the lower conveying belt unit and used for detecting the entering position and the leaving position of the powder layer; and the rolling unit, the releasing unit, the lower conveying belt unit and the second feeding detection unit of the control unit are in signal connection. According to the principle of the rolling forming equipment, the positions of the pressing roller and the releasing plate can be automatically adjusted according to the specific position condition of a powder layer, self-adaptive adjustment and continuous production are achieved, the automation degree of the rolling forming equipment is obviously improved, and the operation reliability and the production efficiency of the machine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roll forming, in particular to a roll forming device. Background Art

[0002] The roll forming equipment used for rolling ceramic tiles in the prior art usually adopts a double steel belt continuous roll forming machine. When in use, the powder layer evenly distributed on the steel belt passes through a pair of pressing rollers arranged up and down to continuously roll and press the ceramic tiles. Compared with the traditional automatic hydraulic press for pressing ceramic tiles, the roller press has low installed power, low hydraulic oil consumption, simple equipment structure, light weight, fast forming speed, and can be pressed and formed continuously, which can greatly reduce the energy consumption in the pressing and forming stage of tile production.

[0003] Through production practice and tests, it is found that the position of the pressing roller and the release plate of the roller forming machine needs to be dynamically adjusted according to the entry and exit of the powder layer to facilitate the forming and stress release of ceramic tiles. However, the automatic control technology of the roller forming machine on the market is still lacking. The pressing roller and the release plate usually use manual adjustment of the pad control position or open-loop position control, which cannot be automatically adjusted according to the specific position of the powder layer, which is not conducive to the forming and stress release of ceramic tiles. There is room for improvement. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, according to one aspect of the utility model, a roller forming device is provided, in which the pressing roller and the release plate can automatically adjust the position according to the specific position of the powder layer to achieve adaptive adjustment and continuous production.

[0005] A roll forming device, comprising:

[0006] A roller pressing unit, comprising a pressing roller and a roller telescopic member for adjusting the height position of the pressing roller;

[0007] A release unit, comprising a release plate and a plate telescopic member for adjusting a height position of the release plate;

[0008] A lower conveyor belt unit, which is used to convey the powder layer along its own conveying direction; the lower conveyor belt unit is provided with a speed detection unit for detecting the speed of the powder layer;

[0009] A second feeding detection unit, which is arranged at the feeding end of the lower conveyor belt unit and is used to detect the entry position and exit position of the powder layer;

[0010] A control unit, which is signal-connected to the roller unit, the release unit, the lower conveyor belt unit and the second feeding detection unit; the control unit calculates the position of the powder layer based on the entry position information and the exit position information of the powder layer obtained by the second feeding detection unit and the speed information of the powder layer obtained by the speed detection unit;

[0011] When the powder layer enters or leaves the pressing area of ​​the pressing roller, the pressing roller is adjusted to the working position or pre-pressing position accordingly; when the powder layer enters or leaves the releasing area of ​​the releasing plate, the releasing plate is adjusted to the working position or pre-pressing position accordingly.

[0012] In one embodiment of the utility model, it also includes a first feeding detection unit, which is arranged at the feeding end of the lower conveyor belt unit and is used to detect the thickness of the powder layer, and the first feeding detection unit is connected to the control unit by signal;

[0013] The control unit also compares the thickness information of the powder layer obtained by the first feeding detection unit with the preset forming thickness information to determine whether the thickness information of the powder layer is greater than the preset forming thickness information;

[0014] When the thickness information of the powder layer is greater than the preset forming thickness information, the roller forming equipment stops.

[0015] In one embodiment of the utility model, a position monitoring unit is provided at the pressing roller for monitoring whether the pressing roller jumps abnormally; the position monitoring unit is signal-connected to the control unit; when the pressing roller jumps abnormally, the roller forming equipment is shut down.

[0016] In an embodiment of the present invention, the first feeding detection unit, the second feeding detection unit, the rolling unit and the releasing unit are sequentially arranged along the conveying direction of the roll-forming equipment.

[0017] In one embodiment of the utility model, the lower conveyor belt unit includes a pair of lower conveying wheels and a lower conveyor belt tensioned between the pair of lower conveying wheels, and the lower conveyor belt is used to convey the powder layer;

[0018] The lower conveyor belt unit further comprises a lower tensioner, and the lower tensioner is used for tensioning the lower conveyor belt;

[0019] The roll forming equipment further comprises an upper conveyor belt unit, wherein the upper conveyor belt unit comprises a pair of upper conveyor wheels and an upper conveyor belt tensioned between the pair of upper conveyor wheels;

[0020] The upper conveyor belt unit further includes an upper tensioner, which is used for tensioning the upper conveyor belt.

[0021] In one embodiment of the utility model, the rolling unit comprises a pair of pressing rollers arranged up and down, and the telescopic end of the roller telescopic member is connected to the pressing roller located on the upper side;

[0022] The pressing roller located on the upper side is arranged in the upper conveyor belt and abuts against the inner side of the upper conveyor belt, and the pressing roller located on the lower side is arranged in the lower conveyor belt and abuts against the inner side of the lower conveyor belt;

[0023] The release plate is arranged inside the upper conveyor belt, and the release plate abuts against the inner side of the upper conveyor belt.

[0024] According to another aspect of the present application, a control method is provided, which is applied to the above-mentioned roll forming equipment, and includes the following operating steps:

[0025] Set the molding thickness;

[0026] The pressing roller and the release plate of the roll forming equipment are positioned to the pre-pressing position;

[0027] Obtaining the entry position information of the target powder layer;

[0028] Obtain the exit position information of the target powder layer;

[0029] Obtaining speed information of target powder layer;

[0030] Calculate the position of the powder layer based on the entry position information, exit position information and speed information of the target powder layer;

[0031] Determine whether the powder layer enters the pressing area of ​​the roller forming device; when it is determined that the powder layer enters the pressing area, the pressing roller is positioned to the working position;

[0032] Determine whether the powder layer enters the release zone of the roll forming device; when it is determined that the powder layer enters the release zone, the release plate is positioned to the working position;

[0033] Determine whether the powder layer leaves the release area; when it is determined that the powder layer leaves the release area, the pressing roller and the release plate are positioned to the pre-pressing position.

[0034] In one embodiment of the present invention, before calculating the position of the powder layer based on the entry position information, exit position information and speed information of the target powder layer, the control method further includes the following operation steps:

[0035] Obtaining the thickness information of the target powder layer;

[0036] Based on the thickness information of the target powder layer, it is compared with the preset forming thickness information to determine whether the powder layer is too thick or there are protruding foreign objects on the surface;

[0037] When it is determined that the powder layer is too thick or there are protruding foreign objects on the surface, the roller forming equipment will stop.

[0038] In one embodiment of the utility model, when the pressing roller is in the working position, the position of the pressing roller is monitored to determine whether the pressing roller jumps abnormally;

[0039] When it is determined that the pressing roller has abnormal vibration, the roll forming equipment is shut down.

[0040] In one embodiment of the present invention, after the roll forming equipment is shut down, the control method further includes the following operating steps:

[0041] Determine whether to unload the powder layer;

[0042] When it is determined that the powder layer needs to be unloaded, the pressing roller and the release plate are positioned to the unloading position.

[0043] In summary, the roll forming equipment and control method provided by the utility model have the following technical effects:

[0044] According to the principle of the roller forming equipment, the pressing roller and the release plate can automatically adjust their positions according to the specific position of the powder layer, realizing adaptive adjustment and continuous production, which significantly improves the automation level of the roller forming equipment, and improves the machine operation reliability and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the roll forming equipment of an embodiment of the utility model;

[0046] Figure 2 It is a schematic structural diagram of signal connections among a rolling unit, a release unit, an upper conveyor belt unit, a lower conveyor belt unit, a second feed detection unit, a first feed detection unit and a control unit in a roll forming device according to an embodiment of the utility model;

[0047] Figure 3 It is a flow chart of a control method applied to a roll forming device according to an embodiment of the utility model;

[0048] Figures: 100-roller unit, 101-pressing roller, 102-roller telescopic part, 200-release unit, 201-release plate, 202-plate telescopic part, 300-lower conveyor belt unit, 301-lower conveying wheel, 302-lower conveyor belt, 400-second feed detection unit, 500-control unit, 600-first feed detection unit, 700-upper conveyor belt unit, 701-upper conveying wheel, 702-upper conveyor belt, 800-powder layer. DETAILED DESCRIPTION

[0049] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0052] Embodiment 1

[0053] The automated control technology of ceramic roller forming machines in the prior art is still lacking. The pressing rollers and release plates of the roller forming machines usually use manually adjusted pads to control the position or open-loop position control, and cannot be automatically adjusted according to the specific position of the powder layer entering and leaving, which is not conducive to ceramic tile forming and stress release.

[0054] In this regard, some embodiments of the present invention disclose a roll forming device, such as Figure 1 and Figure 2 As shown, the pressing roller 101 and the release plate 201 of the roller-forming equipment can be automatically adjusted according to the specific position of the powder layer 800 entering and leaving. Compared with the ceramic roller-forming machine in the prior art, it is beneficial to the forming of ceramic tiles and the release of stress, so as to improve the quality of ceramic products.

[0055] This roll forming equipment is as follows Figure 1 The structural schematic diagram of the roll forming equipment shown in FIG. Figure 2 The schematic diagram of the connection of relevant characteristic signals in the roll forming equipment is shown in FIG. Figure 1 and Figure 2 As shown, the roll-forming device includes a roll-forming unit 100 , a releasing unit 200 , a lower conveyor belt unit 300 , a second feeding detection unit 400 and a control unit 500 .

[0056] The rolling unit 100 includes a pressing roller 101 and a roller telescopic member 102 for adjusting the height position of the pressing roller 101 ; the pressing roller 101 is used to press the powder layer 800 to form the powder layer 800 .

[0057] The release unit 200 includes a release plate 201 and a plate telescopic member 202 for adjusting the height position of the release plate 201; when the pressed powder layer 800 passes through the release plate 201, the molding quality of the powder layer 800 can be guaranteed, the powder layer 800 is prevented from cracking, and the quality of the final ceramic product is guaranteed. It should be noted that the height position mentioned above refers to the height position of the roll-pressing forming device in the height direction.

[0058] The lower conveyor belt unit 300 is used to convey the powder layer 800 along its own conveying direction. The lower conveyor belt unit 300 is provided with a speed detection unit for detecting the speed of the powder layer 800.

[0059] The second feed detection unit 400 is arranged at the feed end of the lower conveyor belt unit 300 and is used to detect the entry position and exit position of the powder layer 800; the control unit 500 and the roller unit 100, the release unit 200, the lower conveyor belt unit 300 and the second feed detection unit 400 are all signal-connected, and the control unit 500 calculates the position of the powder layer 800 based on the entry position information and exit position information of the powder layer 800 obtained by the second feed detection unit 400 and the speed information of the powder layer 800 obtained by the speed detection unit; when the powder layer 800 enters or leaves the pressing area of ​​the pressing roller 101, the pressing roller 101 is adjusted to the working position or the pre-pressing position accordingly; when the powder layer 800 enters or leaves the release area of ​​the release plate 201, the release plate 201 is adjusted to the working position or the pre-pressing position accordingly.

[0060] According to the principle of the present roller forming equipment, the pressing roller 101 and the release plate 201 can automatically adjust their positions according to the specific position of the powder layer 800, thereby realizing adaptive adjustment and continuous production, which significantly improves the degree of automation of the present roller forming equipment, and improves the machine operation reliability and production efficiency.

[0061] The specific implementation principle is illustrated by examples:

[0062] For example, the second feed detection unit 400 can obtain the entry position information of the powder layer 800, and the speed detection unit can obtain the speed information of the powder layer 800. Since the position of the pressing zone of the pressing roller 101 of the rolling unit 100 is fixed and set, the distance between the pressing zone and the second feed detection unit 400 is determined and knowable. Therefore, the control unit 500 can calculate when the powder layer 800 will enter the pressing zone of the rolling unit 100 based on the entry position information and speed information of the powder layer 800; when the powder layer 800 enters the pressing zone of the rolling unit 100, the telescopic end of the roller telescopic member 102 can drive the pressing roller 101 to adjust and position itself to the working position to press the powder layer 800.

[0063] For example, the control unit 500 can also calculate when the powder layer 800 will enter the release area of ​​the release unit 200 based on the entry position information and speed information of the powder layer 800; when the powder layer 800 enters the release area of ​​the release unit 200, the telescopic end of the plate telescopic member 202 can drive the release plate 201 to adjust and position to the working position to release the stress of the pressed powder layer 800.

[0064] For example, the second feed detection unit 400 can obtain the departure position information of the powder layer 800, the speed detection unit can obtain the speed information of the powder layer 800, and the control unit 500 can calculate when the powder layer 800 will leave the pressing area of ​​the roller pressing unit 100 based on the departure position information and speed information of the powder layer 800; when the powder layer 800 leaves the pressing area of ​​the roller pressing unit 100, the telescopic end of the roller telescopic member 102 can drive the pressing roller 101 to adjust its position to the pre-pressing position.

[0065] For example, the control unit 500 can also calculate when the powder layer 800 will leave the release area of ​​the release unit 200 based on the departure position information and speed information of the powder layer 800; when the powder layer 800 leaves the release area of ​​the release unit 200, the telescopic end of the plate telescopic member 202 can drive the release plate 201 to adjust its position to the pre-pressing position.

[0066] It should be noted that the above-mentioned working position can be set in advance in the present roller forming equipment. For example, the thickness information to be pressed and formed can be input in advance. The present roller forming equipment will adjust the pressing roller 101 and the release plate 201 to the working position of matching height based on the set forming thickness.

[0067] It should also be noted that the height of the pre-pressing position mentioned above can be higher than the working position, so as to avoid collision with the next powder layer 800 due to the pre-pressing position being in the working position when not pressing or releasing.

[0068] In another embodiment, in order to make the operation more convenient, the control unit 500 can calculate the position of the powder layer 800 according to the entry position information and the exit position information of the powder layer 800 obtained by the second feeding detection unit 400 and the speed information of the powder layer 800 obtained by the speed detection unit; when the powder layer 800 enters the pressing area of ​​the pressing roller 101, the pressing roller 101 is adjusted to the working position; when the powder layer 800 enters the release area of ​​the release plate 201, the release plate 201 is adjusted to the working position; when the powder layer 800 leaves the release area of ​​the release plate 201, the pressing roller 101 and the release plate 201 are synchronously adjusted to the pre-pressing position. In this embodiment, the difference is that the control unit 500 does not need to calculate whether the powder layer 800 leaves the pressing area and whether the powder layer 800 leaves the release area separately, that is, it does not need to calculate the departure twice, and only needs to calculate once whether it leaves the release area. The reason for this arrangement is that since the powder layer 800 needs to be pressed and formed before the stress is released, the release plate 201 will be set on the rear side of the pressing roller 101 along the conveying direction. Only when the powder layer 800 leaves the release area after pressing and forming can it be considered a successful pressing and forming. Therefore, calculating once whether it leaves the release area can simplify the entire process while ensuring the quality of the ceramic product.

[0069] The specific implementation principle is illustrated by examples:

[0070] For example, the control unit 500 can also calculate when the powder layer 800 will leave the release area of ​​the release unit 200 according to the exit position information and speed information of the powder layer 800; when the powder layer 800 leaves the release area of ​​the release unit 200, the telescopic end of the roller telescopic member 102 can drive the pressing roller 101 to adjust and position to the pre-pressing position, and the telescopic end of the plate telescopic member 202 can drive the release plate 201 to adjust and position to the pre-pressing position. It should be noted that the adjustment and positioning of the pressing roller 101 and the release plate 201 to the pre-pressing position can be performed simultaneously.

[0071] More importantly, in the actual pressing process, not only one type of ceramic product with a certain thickness is pressed and produced, but also ceramic products with a variety of thicknesses are pressed and produced in order to improve economic benefits. Therefore, it involves the situation of changing production, that is, it is necessary to produce ceramic products with different thicknesses. Since the automation control technology of the ceramic roller forming machine in the prior art is still lacking, it is usually necessary to manually adjust the positions of the pressing roller 101 and the release plate 201 according to the ceramic product with a new thickness size for adaptation. However, when manual adjustment is performed, it will undoubtedly take a lot of adjustment and testing time, which is time-consuming and laborious. However, the roller forming equipment only needs to input the size information of the thickness to be formed, and the control unit 500 will automatically adjust the pressing roller 101 and the release plate 201 to the working position of the matching height according to the preset forming thickness. Even if the production is changed, the height position of the pressing roller 101 and the release plate 201 can be automatically adjusted quickly.

[0072] It should be noted that when the powder layer 800 has not yet entered the pressing area, the pressing roller 101 and the release plate 201 are adjusted to the pre-pressing position; when the powder layer 800 enters the pressing area, the pressing roller 101 is adjusted to the working position; when the powder layer 800 enters the release area, the release plate 201 is adjusted to the working position; when the powder layer 800 leaves the release area, the pressing roller 101 and the release plate 201 are adjusted back to the pre-pressing position to prepare for the next pressing, thereby realizing cyclic pressing. It can be seen that the pressing roller 101 and the release plate 201 can realize closed-loop position control, and can automatically adjust the position according to the thickness and position of the powder layer 800, thereby realizing adaptive adjustment and continuous production.

[0073] It should also be noted that the second feed detection unit 400 is used to detect the entry position of the powder layer 800, which specifically refers to the entry position of the head end of the powder layer 800, and the exit position of the powder layer 800, which specifically refers to the exit position of the end of the powder layer 800.

[0074] Optionally, the second feed detection unit 400 may be a thickness sensor. The thickness sensor mentioned may adopt a laser thickness measurement method, and its measurement principle may be: the thickness measurement module of the laser thickness gauge is composed of two laser displacement sensors that are shot up and down. The two upper and lower sensors respectively measure the position of the upper surface and the position of the lower surface of the object to be measured, and the thickness of the object to be measured is obtained by calculation. It should be noted that the thickness sensor can not only measure the thickness of the powder layer 800, but also provide a signal basis for detecting the presence or absence of the powder layer 800, so as to calculate the position information of the powder layer 800.

[0075] For example, when the thickness measuring sensor does not detect the thickness of the powder layer 800, this means that the powder layer 800 has not yet reached the detection area of ​​the thickness measuring sensor; when the thickness measuring sensor detects the thickness of the powder layer 800, this means that the powder layer 800 has entered the detection range of the thickness measuring sensor, and what is recorded at this time is the entry position information of the powder layer 800; when the thickness measuring sensor cannot detect the thickness of the powder layer 800 again, this means that the powder layer 800 has left the detection area of ​​the thickness measuring sensor, and what is recorded at this time is the departure position information of the powder layer 800. Therefore, it can provide a signal basis for detecting the presence or absence of the powder layer 800, so as to calculate the specific position information of the powder layer 800.

[0076] Optionally, the rolling unit 100 includes a pair of pressing rollers 101 arranged in an upper and lower arrangement. It should be noted that the upper and lower arrangement is arranged along the height direction of the roll forming device itself; and the telescopic end of the roller telescopic member 102 is connected to the pressing roller 101 located on the upper side, that is, the adjustment of the height position of the pressing roller 101 mentioned above refers to the height position of the pressing roller 101 located on the upper side, and the height position adjustment can be achieved by using hydraulic axis control technology. For example, the roller telescopic member 102 can be a hydraulic oil cylinder or a telescopic air cylinder, and the height position of the pressing roller 101 can be adjusted by telescoping the hydraulic oil cylinder or the telescopic air cylinder.

[0077] Optionally, the release plate 201 may also use hydraulic axis control technology to adjust the height of the release plate 201. For example, the plate telescopic member 202 may be a hydraulic cylinder or a telescopic cylinder, and the height of the release plate 201 may be adjusted by extending and retracting the hydraulic cylinder or the telescopic cylinder.

[0078] Optionally, the lower conveyor belt unit 300 includes a pair of lower conveying wheels 301 and a lower conveyor belt 302 tensioned between the pair of lower conveying wheels 301, and the lower conveyor belt 302 is used to convey the powder layer 800. A preferred feature thereof is that the lower conveyor belt unit 300 also includes a lower tensioner, and the lower tensioner is used to tension the lower conveyor belt 302.

[0079] Optionally, the speed detection unit may use sensors such as encoders or speed measuring motors for speed detection, which has the characteristics of high accuracy, good stability, and strong anti-interference ability.

[0080] In another aspect of the roll-forming device, since the lower conveyor belt unit 300 in the roll-forming device continuously conveys the powder layer 800, the pressing roller 101 and the release plate 201 need to press and release the stress of multiple powder layers 800. In actual pressing, it is also found that a small number of defective powder layers 800 enter the pressing area for pressing and enter the release area for stress release. The ceramic products pressed by this part of the defective powder layer 800 have more or less quality problems, so it is necessary to remove the defective powder layer 800 in advance to prevent the pressing of ceramic products with quality problems.

[0081] In this regard, the roll forming device further includes a first feeding detection unit 600, which is disposed at the feeding end of the lower conveyor belt unit 300 and is used to detect the thickness of the powder layer 800, and the first feeding detection unit 600 is signal-connected to the control unit 500;

[0082] The control unit 500 also compares the thickness information of the powder layer 800 obtained by the first feeding detection unit 600 with the preset forming thickness information to determine whether the thickness information of the powder layer 800 is greater than the preset forming thickness information; when the thickness information of the powder layer 800 is greater than the preset forming thickness information, the roller forming device stops. It should be noted that the determination of whether the thickness information of the powder layer 800 is greater than the preset forming thickness information is mainly to remove the powder layer 800 that is too thick or has protruding foreign objects on the surface in advance.

[0083] According to the principle of the roller forming equipment, the defective powder layer 800 can be removed in time to prevent the defective powder layer 800 from entering the pressing area and the releasing area and being pressed into ceramic products, thereby effectively ensuring the quality of the ceramic products.

[0084] The specific implementation principle is illustrated by examples:

[0085] For example, the control unit 500 can compare the thickness information of the powder layer 800 with the preset molding thickness information, and then determine whether the thickness information of the powder layer 800 is greater than the preset molding thickness information, that is, determine whether the powder layer 800 is too thick or there are protruding foreign objects on the surface; when the comparison shows that the thickness information of the powder layer 800 is greater than the preset molding thickness information, that is, it is judged that the powder layer 800 is too thick or there are protruding foreign objects on the surface, the roller forming equipment will shut down, that is, the control unit 500 will stop the transportation of the lower conveyor belt unit 300. After the defective powder layer 800 is removed from the lower conveyor belt unit 300, the transportation of the lower conveyor belt unit 300 can be resumed, and the pressing of other powder layers 800 can continue.

[0086] It should be noted that when the comparison shows that the thickness information of the powder layer 800 is less than or equal to the preset molding thickness information, this means that the powder layer 800 is not too thick, or there is no problem of protruding foreign matter on the surface of the powder layer 800. The control unit 500 will enter the operating steps of calculating the position of the powder layer 800, and continue to operate to press the powder layer 800 to ensure the working efficiency of the roller forming equipment.

[0087] Optionally, when the powder layer 800 is too thick or there are protruding foreign objects on the surface, the roll forming device can not only stop, but also set an alarm, the alarm is connected to the control unit 500, and the control unit 500 can start the alarm to alarm to remind the workers. Optionally, the alarm can be a buzzer, which makes a buzzer to remind the workers.

[0088] Optionally, the first feed detection unit 600 may be a laser sensor, which can detect the powder layer 800. The laser sensor mentioned may be a laser displacement sensor, which is a measuring device based on optical principles. It emits a laser beam and receives the laser beam reflected from the object to be measured, measures the displacement change of the laser beam on the surface of the object, and thus calculates the surface profile and thickness of the object. Therefore, it can achieve high-precision measurement of the thickness of the powder layer 800, and at the same time, it can also detect the surface of the powder layer 800 to detect whether there are protruding foreign objects on the surface of the powder layer 800, which provides strong support for quality control in the production process.

[0089] Optionally, the first feed detection unit 600, the second feed detection unit 400, the rolling unit 100 and the release unit 200 are arranged in sequence along the conveying direction of the roller forming equipment. The conveying direction of the roller press mentioned is the X direction in the figure. The structure is simple, easy to arrange and manufacture, and reduces the manufacturing difficulty.

[0090] Of course, in some other embodiments, the first feed detection unit 600 and the second feed detection unit 400 can be aligned with the feed of the lower conveyor belt unit 300 to simultaneously detect the entry position and exit position of the powder layer 800 and the thickness of the powder layer 800 to improve work efficiency.

[0091] Optionally, the roll forming device further comprises an upper conveyor belt unit 700, which comprises a pair of upper conveyor wheels 701 and an upper conveyor belt 702 tensioned between the pair of upper conveyor wheels 701. A preferred feature thereof is that the upper conveyor belt unit 700 further comprises an upper tensioner, which is used to tension the upper conveyor belt 702.

[0092] Optionally, the pressing roller 101 located on the upper side is arranged in the upper conveyor belt 702 and abuts against the inner side of the upper conveyor belt 702; the pressing roller 101 located on the lower side is arranged in the lower conveyor belt 302 and abuts against the inner side of the lower conveyor belt 302. In this way, the roller-pressing forming device presses and forms the powder layer 800 by the outer side of the upper conveyor belt 702 abutted by the pressing roller 101 located on the upper side and the outer side of the lower conveyor belt 302 abutted by the pressing roller 101 located on the lower side.

[0093] Optionally, the release plate 201 is disposed inside the upper conveyor belt 702, and the release plate 201 abuts against the inner side of the upper conveyor belt 702. In this way, the roll-forming device releases the stress of the pressed powder layer 800 through the outer side of the upper conveyor belt 702 abutted by the release plate 201, so that the internal gas and internal stress of the pressed powder layer 800 are gradually released, and the upper surface is not caused to expand, and then gradually stabilizes to form a ceramic product with good quality.

[0094] In another aspect of the roller-forming equipment, it was found in actual pressing that when the pressing roller 101 was positioned at the working position and pressed the powder layer 800, the pressing roller 101 would jump abnormally, resulting in defects in the pressed ceramic product and in severe cases, damage to the pressing roller 101.

[0095] In this regard, in the present roll forming device, a position monitoring unit is provided at the pressing roller 101 to monitor whether the pressing roller 101 jumps abnormally; the position monitoring unit is signal-connected to the control unit 500;

[0096] When the pressing roller 101 jumps abnormally, the roll forming equipment stops.

[0097] According to the principle of the roll-forming equipment, abnormal jumping of the pressing roller 101 during pressing can be discovered in time, and the position monitoring of the pressing roller 101 can better protect the machine.

[0098] Optionally, the position monitoring unit may be a pressure sensor. When the pressing roller 101 jumps abnormally due to an excessively thick powder layer 800 or insufficient pressing pressure, the pressure on the pressure sensor will increase. The control unit 500 can detect the abnormal fluctuation of the pressure value through the pressure sensor and promptly issue a shutdown command to the roller-forming equipment to prevent damage to the pressing roller 101, thereby achieving a good protective effect.

[0099] Optionally, when the pressing roller 101 jumps abnormally, the roll forming device can not only be shut down, but also an alarm can be set, the alarm is connected to the control unit 500 signal, and the control unit 500 can start the alarm to alarm to remind the workers. Optionally, the alarm can be a buzzer, which emits a buzzer to remind the workers.

[0100] Optionally, the signal connection mentioned above may be a wireless signal connection or a wired signal connection.

[0101] The wireless signal connection may be a WiFi signal connection, a Bluetooth signal connection, an NFC signal connection or a ZIBee signal connection, etc. The specific wireless signal connection method depends on the actual situation.

[0102] The wired signal connection may be RS232 signal connection, RS485 signal connection, USB signal connection, GPIB signal connection or CAN signal connection, etc. The specific wired signal connection method depends on the actual situation.

[0103] Embodiment 2

[0104] The automated control technology of ceramic roller forming machines in the prior art is still lacking. The pressing rollers and release plates of the roller forming machines usually use manually adjusted pads to control the position or open-loop position control, and cannot be automatically adjusted according to the specific position of the powder layer entering and leaving, which is not conducive to ceramic tile forming and stress release.

[0105] In this regard, some embodiments of the present utility model disclose a control method for a roll forming device, such as Figure 3 As shown, it can be specifically applied to the roller forming equipment in the above-mentioned embodiment 1, so that the pressing roller 101 and the release plate 201 can be automatically adjusted according to the specific position of the powder layer 800 entering and leaving. Compared with the ceramic roller forming machine in the prior art, it is beneficial to the forming of ceramic brick blanks and stress release, so as to improve the quality of ceramic products.

[0106] This control method is as follows Figure 3 The flowchart of the control method is shown in FIG. Figure 3 As shown, this control method includes the following steps:

[0107] Preset forming thickness;

[0108] The pressing roller 101 and the release plate 201 of the roll-forming apparatus are positioned to a pre-pressing position;

[0109] Obtaining the entry position information of the target powder layer 800;

[0110] Obtaining the exit position information of the target powder layer 800;

[0111] Obtaining speed information of the target powder layer 800;

[0112] Calculate the position of the powder layer 800 based on the entry position information, exit position information and speed information of the target powder layer 800;

[0113] Determine whether the powder layer 800 enters the pressing area of ​​the roller forming device; when it is determined that the powder layer 800 enters the pressing area, the pressing roller 101 is positioned to the working position;

[0114] Determine whether the powder layer 800 enters the release zone of the roll-forming device; when it is determined that the powder layer 800 enters the release zone, the release plate 201 is positioned to the working position;

[0115] It is determined whether the powder layer 800 leaves the release area; when it is determined that the powder layer 800 leaves the release area, the pressing roller 101 and the release plate 201 are positioned to the pre-pressing position.

[0116] According to the principle of this control method, the pressing roller 101 and the release plate 201 can automatically adjust their positions according to the specific position of the powder layer 800, realizing adaptive adjustment and continuous production, which significantly improves the automation level of the roller forming equipment, and improves the machine operation reliability and production efficiency.

[0117] More importantly, in the actual pressing process, not only one type of ceramic product with a certain thickness is pressed and produced, but also ceramic products with a variety of thicknesses are pressed and produced in order to improve economic benefits. Therefore, it involves the situation of changing production, that is, it is necessary to produce ceramic products with different thicknesses. Since the automation control technology of the ceramic roller forming machine in the prior art is still lacking, it is usually necessary to manually adjust the positions of the pressing roller 101 and the release plate 201 according to the ceramic product with a new thickness size for adaptation. However, when manual adjustment is performed, it will undoubtedly take a lot of adjustment and testing time, which is time-consuming and laborious. However, this control method only needs to input the size information of the thickness to be formed, and will automatically adjust the pressing roller 101 and the release plate 201 to the working position of the matching height according to the preset forming thickness. Even if the production is changed, the height position of the pressing roller 101 and the release plate 201 can be automatically adjusted quickly.

[0118] Furthermore, when the powder layer 800 has not yet entered the pressing area, the pressing roller 101 and the release plate 201 are adjusted to the pre-pressing position; when the powder layer 800 enters the pressing area, the pressing roller 101 is adjusted to the working position; when the powder layer 800 enters the release area, the release plate 201 is adjusted to the working position; when the powder layer 800 leaves the release area, the pressing roller 101 and the release plate 201 are adjusted back to the pre-pressing position to prepare for the next pressing, thereby realizing cyclic pressing. It can be seen that the pressing roller 101 and the release plate 201 can realize closed-loop position control, and can automatically adjust their positions according to the thickness and position of the powder layer 800, thereby realizing adaptive adjustment and continuous production.

[0119] In another aspect of the control method, since the lower conveyor belt unit 300 in the roller forming device continuously conveys the powder layer 800, the pressing roller 101 and the release plate 201 need to perform pressing and stress release on multiple powder layers 800. In actual pressing, it is also found that a small portion of defective powder layers 800 enter the pressing area for pressing and enter the release area for stress release. The ceramic products pressed by this portion of defective powder layers 800 have more or less quality problems. Therefore, it is necessary to remove the defective powder layers 800 in advance to prevent the pressing of ceramic products with quality problems.

[0120] In contrast, before the operation step of calculating the position of the powder layer 800 based on the entry position information, exit position information and speed information of the target powder layer 800, the control method further includes the following operation steps:

[0121] Obtaining thickness information of the target powder layer 800;

[0122] Based on the thickness information of the target powder layer 800, the thickness information is compared with the preset forming thickness information to determine whether the powder layer 800 is too thick or whether there are protruding foreign objects on the surface;

[0123] When it is judged that the powder layer 800 is too thick or there are protruding foreign objects on the surface, the roller forming equipment stops;

[0124] Otherwise, the position of the powder layer 800 is calculated.

[0125] According to the principle of the present control method, the defective powder layer 800 can be removed in time to prevent the defective powder layer 800 from entering the pressing area and the releasing area to be pressed into ceramic products, thereby effectively ensuring the quality of the ceramic products.

[0126] Optionally, when the powder layer 800 is too thick or there are protruding foreign objects on the surface, the roll forming device can not only be shut down, but also an alarm can be set, the alarm is connected to the control unit 500, and the control unit 500 can start the alarm to alarm to remind the workers. Optionally, the alarm can be a buzzer, which makes a buzzer to remind the workers.

[0127] In another aspect of the present control method, it was found in actual pressing that when the pressing roller 101 was positioned at the working position and pressed the powder layer 800, the pressing roller 101 would jump abnormally, resulting in defects in the pressed ceramic product and in severe cases, damage to the pressing roller 101.

[0128] By contrast, when the pressing roller 101 is in the working position, the position of the pressing roller 101 is monitored to determine whether the pressing roller 101 jumps abnormally;

[0129] When it is determined that the pressing roller 101 has abnormal vibration, the roller forming equipment is shut down;

[0130] Otherwise, the pressing of the pressing roller 101 is continued.

[0131] According to the principle of the control method, the abnormal jumping of the pressing roller 101 during pressing can be discovered in time, and the position monitoring of the pressing roller 101 can better protect the machine.

[0132] Optionally, when the pressing roller 101 jumps abnormally, the roll forming equipment can not only be shut down, but also an alarm can be set, the alarm is connected to the control unit 500 signal, and the control unit 500 can start the alarm to alarm to remind the workers. Optionally, the alarm can be a buzzer, which makes a buzzer to remind the workers.

[0133] In another aspect of the control method, in the control method, the roller forming equipment will stop because the reasons for the stop are: the powder layer 800 is too thick, there are protruding foreign objects on the surface of the powder layer 800, and there is abnormal beating of the pressing roller 101, so the user needs to choose whether to unload the powder layer 800 according to the actual situation. Usually, if the powder layer 800 is too thick and there are protruding foreign objects on the surface of the powder layer 800, it is necessary to unload the powder layer 800, and if the powder layer 800 is stopped due to abnormal beating of the pressing roller 101, it is not necessary to unload the powder layer 800. Therefore, the control method also makes corresponding settings for whether the powder layer 800 needs to be unloaded.

[0134] After the roll forming equipment is shut down, the control method further comprises the following steps:

[0135] Determine whether to unload the powder layer 800;

[0136] When it is determined that the powder layer 800 needs to be unloaded, the pressing roller 101 and the release plate 201 are positioned to the unloading position;

[0137] Otherwise, the suppression process ends.

[0138] It should be noted that whether to unload the powder layer 800 can be determined according to the user's choice. For example, when the roll forming device is stopped, two options can be provided on the screen of the roll forming device for the user to press, one for unloading and the other for not unloading. If the user chooses to unload the powder layer 800, the pressing roller 101 and the release plate 201 will automatically be positioned to the unloading position to unload the powder layer 800.

[0139] Alternatively, the reasons for the shutdown of the roller forming equipment can be divided into: the first reason, the powder layer 800 is too thick or there are protruding foreign objects on the surface of the powder layer 800; the second reason, the pressing roller 101 has abnormal jumping. For these two reasons, the control unit 500 can know which reason is caused in the previous judgment, and the user does not need to make a selection at this time. If it is caused by the first reason, it is directly judged that the powder layer 800 needs to be unloaded, and the pressing roller 101 and the release plate 201 are automatically positioned to the unloading position; if it is caused by the second reason, it is directly judged that the powder layer 800 does not need to be unloaded, and the pressing process ends.

[0140] In order to make the control method more clearly expressed, the above-mentioned operation steps are combined and written into an optional embodiment with the specific structure of the roll forming equipment in the first embodiment, as follows:

[0141] This control method includes the following steps:

[0142] Set the forming thickness and start the machine;

[0143] The lower conveyor belt 302 is tensioned;

[0144] The rolling roller and the release plate 201 are positioned to the pre-pressing height;

[0145] The upper conveyor belt 702 is tensioned;

[0146] The upper conveyor belt 702 and the lower conveyor belt 302 are running;

[0147] The first feeding detection unit 600 detects the target powder layer 800 to obtain the thickness information of the target powder;

[0148] Based on the thickness information of the target powder layer 800, the thickness information is compared with the preset forming thickness information to determine whether the powder layer 800 is too thick or whether there are protruding foreign objects on the surface;

[0149] When it is determined that the powder layer 800 is too thick or there are protruding foreign objects on the surface, the roller forming device stops; otherwise, the position of the powder layer 800 is calculated;

[0150] After the roll forming equipment is shut down, determining whether to unload the powder layer 800;

[0151] When it is determined that the powder layer 800 needs to be unloaded, the pressing roller 101 and the release plate 201 are positioned to the unloading position; otherwise, the current pressing process is terminated;

[0152] The second feeding detection unit 400 detects the target powder layer 800 and obtains the entry position information and the exit position information of the target powder layer 800, and the speed detection unit obtains the speed information of the powder layer 800;

[0153] Based on the entry position information, exit position information and speed information of the target powder layer 800, the position of the powder layer 800 is calculated to determine whether the powder layer 800 has entered the pressing area;

[0154] When it is determined that the powder layer 800 enters the pressing area, the pressing roller 101 is positioned to the working position; otherwise, the position of the powder layer 800 continues to be calculated in real time and the target powder layer 800 continues to be transported;

[0155] When the pressing roller 101 is in the working position, the position of the pressing roller 101 is monitored to determine whether the pressing roller 101 jumps abnormally;

[0156] When it is determined that the pressing roller 101 has abnormal vibration, the roller forming device stops; otherwise, the target powder layer 800 continues to be pressed;

[0157] After the roll forming equipment is shut down, determining whether to unload the powder layer 800;

[0158] When it is determined that the powder layer 800 needs to be unloaded, the pressing roller 101 and the release plate 201 are positioned to the unloading position; otherwise, the current pressing process is terminated;

[0159] Based on the entry position information, exit position information and speed information of the target powder layer 800, the position of the powder layer 800 is calculated to determine whether the powder layer 800 enters the release zone;

[0160] When it is determined that the powder layer 800 enters the release zone, the release plate 201 is positioned to the working position; otherwise, the position of the powder layer 800 continues to be calculated in real time and the target powder layer 800 continues to be transported;

[0161] Based on the entry position information, exit position information and speed information of the target powder layer 800, the position of the powder layer 800 is calculated to determine whether the powder layer 800 has left the release area; when it is determined that the powder layer 800 has left the release area, the pressing roller 101 and the release plate 201 are positioned to the pre-pressing position to prepare for the next pressing, thereby realizing cyclic pressing.

[0162] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A roll forming device, characterized in that: include: A rolling unit (100), comprising a pressing roller (101) and a roller telescopic member (102) for adjusting the height position of the pressing roller (101); A release unit (200), comprising a release plate (201) and a plate telescopic member (202) for adjusting the height position of the release plate (201); A lower conveyor belt unit (300) is used to convey the powder layer (800) along its own conveying direction; the lower conveyor belt unit (300) is provided with a speed detection unit for detecting the speed of the powder layer (800); A second feeding detection unit (400) is provided at the feeding end of the lower conveyor belt unit (300) and is used to detect the entry position and exit position of the powder layer (800); A control unit (500) is connected to the rolling unit (100), the release unit (200), the lower conveyor belt unit (300) and the second feeding detection unit (400) by signals; the control unit (500) calculates the position of the powder layer (800) based on the entry position information and exit position information of the powder layer (800) acquired by the second feeding detection unit (400) and the speed information of the powder layer (800) acquired by the speed detection unit; When the powder layer (800) enters or leaves the pressing area of ​​the pressing roller (101), the pressing roller (101) is adjusted to the working position or the pre-pressing position accordingly; when the powder layer (800) enters or leaves the releasing area of ​​the releasing plate (201), the releasing plate (201) is adjusted to the working position or the pre-pressing position accordingly.

2. A roll forming device according to claim 1, characterized in that: It also includes a first feeding detection unit (600), which is arranged at the feeding end of the lower conveyor belt unit (300) and is used to detect the thickness of the powder layer (800), and the first feeding detection unit (600) is connected to the control unit (500) by signal. The control unit (500) also compares the thickness information of the powder layer (800) acquired by the first feeding detection unit (600) with the preset molding thickness information to determine whether the thickness information of the powder layer (800) is greater than the preset molding thickness information; When the thickness information of the powder layer (800) is greater than the preset forming thickness information, the roller forming device stops.

3. A roll forming device according to claim 1, characterized in that: The pressing roller (101) is provided with a position monitoring unit for monitoring whether the pressing roller (101) jumps abnormally; the position monitoring unit is signal-connected to the control unit (500); when the pressing roller (101) jumps abnormally, the roller forming equipment is shut down.

4. A roll forming device according to claim 2, characterized in that: The first feeding detection unit (600), the second feeding detection unit (400), the rolling unit (100) and the releasing unit (200) are sequentially arranged along the conveying direction of the roll-forming equipment.

5. A roll forming device according to any one of claims 1 to 4, characterized in that: The lower conveyor belt unit (300) comprises a pair of lower conveying wheels (301) and a lower conveyor belt (302) tensioned between the pair of lower conveying wheels (301), wherein the lower conveyor belt (302) is used to convey the powder layer (800); The lower conveyor belt unit (300) further comprises a lower tensioner, wherein the lower tensioner is used for tensioning the lower conveyor belt (302); The roll-forming device further comprises an upper conveyor belt unit (700), wherein the upper conveyor belt unit (700) comprises a pair of upper conveyor wheels (701) and an upper conveyor belt (702) tensioned between the pair of upper conveyor wheels (701); The upper conveyor belt unit (700) further comprises an upper tensioner, and the upper tensioner is used for tensioning the upper conveyor belt (702).

6. A roll forming device according to claim 5, characterized in that: The rolling unit (100) comprises a pair of pressing rollers (101) arranged vertically, and the telescopic end of the roller telescopic member (102) is connected to the pressing roller (101) located on the upper side; The pressing roller (101) located on the upper side is arranged in the upper conveyor belt (702) and abuts against the inner side of the upper conveyor belt (702), and the pressing roller (101) located on the lower side is arranged in the lower conveyor belt (302) and abuts against the inner side of the lower conveyor belt (302); The release plate (201) is arranged inside the upper conveyor belt (702), and the release plate (201) abuts against the inner side of the upper conveyor belt (702).

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