阅读说明：本技术 用于塑料中空格子板的全自动智能校直装置 (Full-automatic intelligent straightening device for plastic hollow grid plate ) 是由 张帅 杨金光 鹿钜志 于 2019-11-07 设计创作，主要内容包括：本发明涉及中空格子板校直设备技术领域,特别涉及一种用于塑料中空格子板的全自动智能校直装置。其包括横向加热装置,纵向加热装置,警告装置,控制器,速度传感器,位置传感器,及检测元件,前置检测元件检测到弯曲凸起部位后发送检测信号至控制器,控制器接收检测信号后发送用于控制弯曲凸起部位相近的加热单元升温的信号至加热单元,当中空格子板运行至后置检测元件下方时,后置检测元件再次进行检测并发送检测信号至控制器,控制器接收检测信号后发送恢复至应力去除温度的信号至加热单元,并发送是否发出警报的信号至警告装置。本发明能根据中空格子板弯曲程度及位置自动实时监测并调整加热温度,节能,加热均匀,平整度高,安全性高。(The invention relates to the technical field of hollow grid plate straightening equipment, in particular to a full-automatic intelligent straightening device for a plastic hollow grid plate. The device comprises a transverse heating device, a longitudinal heating device, a warning device, a controller, a speed sensor, a position sensor and a detection element, wherein the front detection element sends a detection signal to the controller after detecting a bent convex part, the controller sends a signal for controlling the heating unit with the bent convex part close to the bent convex part to heat to the heating unit after receiving the detection signal, when a space daughter board runs to the lower part of the rear detection element, the rear detection element detects again and sends the detection signal to the controller, the controller sends a signal for recovering to the stress removal temperature to the heating unit after receiving the detection signal, and sends a signal for judging whether to send an alarm to the warning device. The invention can automatically monitor and adjust the heating temperature in real time according to the bending degree and the position of the hollow grid plate, and has the advantages of energy conservation, uniform heating, high flatness and high safety.)

1. The utility model provides a full-automatic intelligent coalignment for plastics cavity grid board, includes the horizontal heating device who evenly preheats earlier to the middle space grid board, its characterized in that: the heating device comprises a frame, an upper guard plate arranged at the top of the frame and a lower guard plate arranged at the bottom of the frame, an upper heating plate layer and a lower heating plate layer are arranged between the upper guard plate and the lower guard plate, a support frame used for supporting the hollow grid plate is arranged between the upper heating plate layer and the lower heating plate layer, a feeding end and a discharging end are sequentially arranged between the upper heating plate layer and the support frame along the running direction of the hollow grid plate, a plurality of groups of heating units for providing a straightening heat source for the hollow grid plate are arranged on the upper heating plate layer and the lower heating plate layer, the heating units are arranged in parallel to the running direction of the hollow grid plate and are sequentially arranged in a plurality of rows at intervals vertical to the running direction of the hollow grid plate, and the heating device also comprises a controller, a speed sensor for detecting cavity grid plate functioning speed, position sensor to and locate the detecting element who is used for detecting the protruding position of crooked on the cavity grid plate in the vertical heating device, detecting element is including locating leading detecting element of feed inlet department and locating the rearmounted detecting element of discharge end department, speed sensor sends detected signal to controller, the controller sends the signal that is used for controlling in the horizontal heating device preheating temperature lift to horizontal heating device after receiving the signal, sends the signal that is used for controlling vertical heating device internal stress removal temperature lift to the heating unit simultaneously, leading detecting element sends detected signal to controller after detecting the protruding position of crooked, the controller sends the signal that is used for controlling the heating unit intensification that the protruding position of crooked is close to the heating unit after receiving detected signal, when the middle space daughter board runs to the position below the rear detection element, the rear detection element detects again and sends a detection signal to the controller, the controller receives the detection signal and then sends a signal for recovering to the stress removal temperature to the heating unit, and sends a signal for judging whether to give an alarm or not to the warning device.

2. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: vertical heating device is still including setting firmly the elevating gear who is used for going up and down between last backplate and the lower backplate and adds heat sheet layer, lower heat sheet layer and support frame, elevating gear includes four lead screws, it is the rectangle to go up to add heat sheet layer, lower heat sheet layer and support frame all be equipped with the fixed orifices that the lead screw passed on four angles of last heat sheet layer, lower heat sheet layer and support frame, it all passes through nut and lead screw threaded connection to go up to add heat sheet layer, lower heat sheet layer and support frame.

3. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: horizontal heating device includes horizontal heating frame, is provided with a backplate, end backplate respectively in top, the bottom of horizontal heating frame, is provided with a hot plate and end hot plate between backplate and end backplate at the top, be provided with the supporting platform who is used for a bearing cavity check board between the hot plate at the top, end hot plate, the traffic direction of equal perpendicular to cavity check board on top hot plate, end hot plate is provided with a plurality of horizontal heating pipes that are used for centering check board to preheat, a plurality of horizontal heating pipe constitutes a set of horizontal heating unit, horizontal heating device is still including the horizontal solid-state voltage regulator that is used for controlling horizontal heating unit to preheat the temperature and goes up and down.

4. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: the heating unit comprises a plurality of longitudinal heating pipes which are arranged in parallel, every three adjacent longitudinal heating pipes are a group, and each group is provided with a longitudinal solid-state voltage regulator.

5. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: the straightening device further comprises a calculation module, a conversion module, an analysis module, a parameter setting module and a display terminal, wherein the calculation module is used for calculating the height of the bent bulge of the hollow grid plate, and the display terminal is used for displaying parameter setting information.

6. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: the feeding end and the discharging end are respectively provided with a carrier roller for assisting the conveying of the hollow grid plate, and the plurality of groups of heating units are arranged on the lower surface of the upper heating plate layer and the upper surface of the lower heating plate layer.

7. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: the controller is a PLC controller, and the front detection element and the rear detection element are light curtain sensors.

8. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: the device also comprises an alarm device which can automatically alarm and shut down when a fault occurs, and the rock wool is arranged on the lower surfaces of the upper guard plate and the top guard plate.

9. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 3, which is characterized in that: the number of the transverse heating pipes on the top heating plate and the bottom heating plate is 4-8, and the rack is fixedly connected with the transverse heating rack.

10. The fully automatic intelligent straightening device for the plastic hollow grid plate as claimed in claim 1, which is characterized in that: each group the heating length of heating unit is the same, heating unit is on a parallel with cavity grid plate traffic direction and arranges multiseriate and perpendicular to cavity grid plate traffic direction interval in proper order in succession and sets up the multirow, and adjacent heating unit of row about forms the control by temperature change detection zone, the control by temperature change detection zone sets up 2 at least.

Technical Field

The invention relates to the technical field of hollow grid plate straightening equipment, in particular to a full-automatic intelligent straightening device for a plastic hollow grid plate.

Background

The hollow grid plate is also called a hollow plate, is processed by PP, PC, PE, VC and other plastic materials, is widely applied to the industries of packaging, building, decoration and the like due to the unique environmental protection property, excellent physical property and the advantage of reutilization, for example, the PP hollow plate can replace a paper box to manufacture a packaging box which has the advantages of light weight, high strength, moisture resistance, corrosion resistance and the like, thereby driving the production requirement of the hollow grid plate. In the production process of the hollow grid plate, after raw materials are subjected to melt extrusion, cooling and shaping, traction and trimming, straightening treatment is required to be carried out so as to ensure the flatness of the hollow grid plate. However, in the case of a plastic hollow grid plate which has been formed by cooling, it is difficult to straighten it out by mechanical straightening. Therefore, general enterprises adopt the electric heating technology to heat the plastic hollow grid plate so as to achieve the purpose of bending adjustment.

At present, the plastic hollow grid plate straightening equipment used has the following defects: firstly, utilize the electrical heating source, but generally use high temperature fluorescent tube as the heat source carrier, cause heating temperature to fluctuate greatly, the goods is heated inhomogeneous and has influenced the whole physical properties of goods. Secondly, the straightening equipment used at present generally adopts a set of heating systems (i.e. a set of transverse heating), which is also an important factor causing uneven heating of the product. Thirdly, the design defects of the existing product lead to waste of heat energy, poor safety performance, complex assembly and high maintenance cost.

The traditional straightening equipment is that a hollow grid plate passes through an oven, a heating device in the oven heats the two sides of the hollow grid plate, and the heating temperature is controlled, so that the surface stress of the hollow grid plate is eliminated, and the flatness of the hollow grid plate is improved. For example, patent CN 207105395U discloses a hollow grid plate heat setting oven and a hollow grid plate production line, which include a rack, a conveying device and a heating device, wherein the heating device includes a plurality of heating pipes, the heating device is divided into a front heating zone and a rear heating zone along the conveying direction of the conveying device, and the arrangement direction of the heating pipes in the front heating zone is perpendicular to the arrangement direction of the heating pipes in the rear heating zone; still provide a cavity grid plate production line, contain above-mentioned cavity grid plate heat setting oven.

Though, through above-mentioned patent, can carry out more even, reasonable heating to the cavity grid board through the heat setting oven, improve the surface smoothness of product, eliminate the emergence of the warp deformation phenomenon of product, effectively improved the quality and the qualification rate of product. However, firstly, although the heating temperature of the subsequent heating zone needs to be heated according to different conditions and differences, the three groups of heating pipes are adjusted in real time by workers according to the actual conditions of the hollow grid plate, and due to inevitable manual errors, the purpose of accurately performing local heating and straightening according to the bent part of the hollow grid plate cannot be realized, so that not only energy waste is caused, but also the time required for achieving the straightening purpose is long, and the quality of the finished hollow grid plate product is influenced if the heating temperature is operated in an oven for a long time. Then, if the degree of curvature is big, when need set up preceding zone of heating and back zone of heating to different temperatures in order to reach the alignment purpose, because preceding zone of heating and back zone of heating are in same oven, can lead to the zone of heating temperature interact around leading to, can lead to the alignment speed slow, and can lead to heating to accomplish the back cavity grid board roughness low, can not eliminate the buckling deformation phenomenon of product completely, the product quality of producing is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing the full-automatic intelligent straightening device for the plastic hollow grid plate, which can realize full-automatic real-time monitoring and heating temperature adjustment according to the bending degree and the position of the hollow grid plate, and can automatically adjust the heating temperature according to the running speed of the hollow grid plate, thereby achieving the purposes of energy conservation, uniform heating, high product flatness, good quality and high safety.

The technical scheme adopted by the invention for realizing the purpose is as follows: a full-automatic intelligent straightening device for plastic hollow grid plates comprises a transverse heating device for uniformly preheating the hollow grid plates, a longitudinal heating device and a warning device, wherein the longitudinal heating device and the warning device are connected with the transverse heating device and are used for locally straightening bent parts on the preheated hollow grid plates, the longitudinal heating device comprises a rack, an upper protective plate arranged at the top of the rack and a lower protective plate arranged at the bottom of the rack, an upper heating plate layer and a lower heating plate layer are arranged between the upper protective plate and the lower protective plate, a supporting frame for supporting the hollow grid plates is arranged between the upper heating plate layer and the lower heating plate layer, a feeding end and a discharging end are sequentially arranged between the upper heating plate layer and the supporting frame along the running direction of the hollow grid plates, and a plurality of groups of heating units for providing straightening heat sources for the hollow grid plates are arranged on the upper heating plate layer, the heating unit is parallel to the hollow grid plate running direction and is arranged and is perpendicular to the hollow grid plate running direction in sequence at intervals, the heating unit further comprises a controller, a speed sensor and a position sensor, the speed sensor is used for detecting the running speed of the hollow grid plate, the position sensor is arranged in the longitudinal heating device and is used for detecting a detection element at the upper bent convex part of the hollow grid plate, the detection element comprises a front detection element arranged at the feeding end and a rear detection element arranged at the discharging end, the speed sensor sends a detection signal to the controller, the controller receives the signal and then sends a signal for controlling the heating temperature in the transverse heating device to rise and fall to the transverse heating device, and simultaneously sends a signal for controlling the internal stress removal temperature of the longitudinal heating device to rise and fall to the heating unit, and the front detection element sends a detection signal to the controller after detecting the bent convex part, the controller receives the detection signal and then sends a signal for controlling the heating unit with the bent convex part close to the bent convex part to heat to the heating unit, when the space daughter board runs to the position below the rear detection element, the rear detection element detects again and sends the detection signal to the controller, the controller receives the detection signal and then sends a signal for recovering to the stress removal temperature to the heating unit, and sends a signal for sending out an alarm or not to the warning device.

Foretell a full-automatic intelligent coalignment for plastics cavity grid plate, vertical heating device is still including setting firmly the elevating gear who is used for going up and down between last backplate and the lower backplate and adds hot plate layer, lower hot plate layer and support frame, elevating gear includes four screws, it is the rectangle to go up hot plate layer, lower hot plate layer and support frame all be equipped with the fixed orifices that the screw passed on four angles of going up hot plate layer, lower hot plate layer and support frame, it all passes through nut and lead screw threaded connection to go up hot plate layer, lower hot plate layer and support frame.

Foretell a full-automatic intelligent coalignment for plastics cavity check board, horizontal heating device is provided with a backplate, end backplate respectively in top, the bottom of horizontal heating frame including horizontal heating frame, is provided with a hot plate and end hot plate between backplate at the top, end, be provided with the supporting platform who is used for a bearing cavity check board between hot plate, the end hot plate, the traffic direction of equal perpendicular to cavity check board on top hot plate, end hot plate is provided with a plurality of horizontal heating pipes that are used for centering check board to preheat, and is a plurality of horizontal heating unit is constituteed to horizontal heating pipe, horizontal heating device is still including the horizontal solid-state voltage regulator that is used for controlling horizontal heating unit to preheat the temperature lift in advance.

The full-automatic intelligent straightening device for the plastic hollow grid plate is characterized in that the heating unit comprises a plurality of longitudinal heating pipes which are arranged in parallel, every three adjacent longitudinal heating pipes are a group, and each group is provided with a longitudinal solid-state pressure regulator.

The full-automatic intelligent straightening device for the plastic hollow grid plate further comprises a calculation module for calculating the height of the bent bulge of the hollow grid plate, a conversion module, an analysis module, a parameter setting module and a display terminal for displaying parameter setting information.

The full-automatic intelligent straightening device for the plastic hollow grid plate is characterized in that a feed end and a discharge end are respectively provided with a carrier roller for assisting the conveying of the hollow grid plate, and a plurality of groups of heating units are arranged on the lower surface of the upper heating plate layer and the upper surface of the lower heating plate layer.

The controller is a PLC controller, and the front detection element and the rear detection element are light curtain sensors.

The full-automatic intelligent straightening device for the plastic hollow grid plate further comprises an alarm device capable of automatically giving an alarm and shutting down when a fault occurs, and the rock wool is arranged on the lower surfaces of the upper guard plate and the top guard plate.

In the full-automatic intelligent straightening device for the plastic hollow grid plate, the number of the transverse heating pipes on the top heating plate and the bottom heating plate is 4-8, and the rack is fixedly connected with the transverse heating rack.

Foretell a full-automatic intelligent coalignment for plastics cavity grid plate, each group heating unit's heating length is the same, heating unit is on a parallel with cavity grid plate traffic direction and arranges multiseriate and perpendicular to cavity grid plate traffic direction interval in proper order in succession and sets up the multirow in proper order, and adjacent heating unit of row about forms the control by temperature change detection zone, the control by temperature change detection zone sets up 2 at least.

The full-automatic intelligent straightening device for the plastic hollow grid plate has the beneficial effects that: according to the invention, the hollow grid plate is preheated by the transverse heating device, and then is automatically and locally heated by the longitudinal heating device according to the bending degree and the bending part of the hollow grid plate, namely, the hollow grid plate is locally heated according to the bending position and the bending height of the actual hollow grid plate on the basis of stress removal temperature, so that the purpose of quickly straightening the bending part is achieved, meanwhile, the influence of high temperature on the quality of a finished product of the whole plate when the plate is heated is avoided, the flatness of the hollow grid plate is ensured, the purpose of saving energy is achieved, the product quality is also ensured, and the service life of the product is prolonged. The invention can realize automatic adjustment of the preheating temperature of the transverse heating device and the stress removing temperature of the longitudinal heating device according to different running speeds of the plate by arranging the controller and the speed sensor so as to completely eliminate the stress of the plate. Through setting up position sensor, detecting element and calculation module, conversion module, analysis module, parameter setting module can realize according to the vertical heating device of crooked protruding position control in correspond the heating unit intensification and carry out the local heating to panel to and according to the high automatically regulated intensification temperature of bending, realize accurate alignment, guarantee the roughness of panel, improved one-time finished product qualification rate and appearance pleasing to the eye degree. Through set up the rock wool on last backplate, can protect workman's scald preventing, improve the security performance. The invention can automatically adjust the preheating temperature according to the running speed of the hollow grid plate, has the advantages of high energy saving property, uniform heating, high product flatness, good quality, high safety, capability of quickly finishing straightening and long service life.

Drawings

FIG. 1 is a schematic front view of a lateral heating device;

FIG. 2 is a schematic side view of the lateral heating device;

FIG. 3 is a front view of the longitudinal heating device;

FIG. 4 is a schematic side view of the longitudinal heating device;

FIG. 5 is a schematic view of the overall structure of the present invention;

FIG. 6 is a schematic view of the arrangement of heating units in example 1;

FIG. 7 is a schematic view of the arrangement of heating units in example 2.

Detailed Description

The invention is further explained in detail with reference to the drawings and the specific embodiments;