Press operation state monitoring device

Abstract

The utility model relates to a press operation state monitoring device comprising a light emitting module used for emitting a light signal to the inside of a press; the photoelectric processing module is arranged outside the pressing machine and located on a light emitting circuit of the light emitting module, the photoelectric processing module comprises a plurality of photoelectric processing units, and for each photoelectric processing unit, under the condition that the photoelectric processing unit senses a light signal, the photoelectric processing unit is in a conducting state, and the photoelectric processing unit is in a non-conducting state; under the condition that the photoelectric processing unit does not sense the light signal, the photoelectric processing unit is in an off state; and the state monitoring module is connected with the photoelectric processing module, and the state monitoring module is used for monitoring the operation state of the press through the obtained states of the multiple photoelectric processing units. The device can accurately monitor the operation state of the press.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of state monitoring, in particular to a press running state monitoring device. BACKGROUND

[0002] The press is an important laminating equipment in the electronic circuit board industry. When working, in order to improve production efficiency, the oil cylinder at the bottom of the press first pushes the laminated plate upward at a fast speed, and then pushes it at a slow speed until the process required pressure is reached when the top hot plate contacts the material. Therefore, it is very important to monitor the running state of the press-bonded material inside the press.

[0003] At present, in the production process, a mechanical position monitoring device is generally designed to monitor the running state of the press-bonded material inside the press. However, in the case of compact structure in the hot press, high temperature and low vacuum state in the press cavity during work, and halogen volatile matter generated inside the press, etc., the narrow internal cavity of the press cannot install a mechanical position monitoring device, and the mechanical position monitoring device is easily invaded by halogen volatile matter inside, causing mechanical switch delay or even failure, so it is difficult to determine the contact closing condition between the hot plate and the press-bonded material inside the press. Therefore, the mechanical position monitoring device is designed on the rear side of the press.

[0004] However, the current press running state monitoring device still cannot accurately monitor the running state of the press-bonded material in the press. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a press running state monitoring device which can accurately monitor the running state of the press.

[0006] A press running state monitoring device, comprising:

[0007] A light emitting module for emitting a light signal into the press;

[0008] A photoelectric processing module is arranged on the outside of the press and on the light emitting line of the light emitting module. The photoelectric processing module includes a plurality of photoelectric processing units. In each photoelectric processing unit, when the photoelectric processing unit senses the light signal, the photoelectric processing unit is in a conductive state, and when the photoelectric processing unit does not sense the light signal, the photoelectric processing unit is in a disconnected state.

[0009] A state monitoring module connected with the photoelectric processing module, the state monitoring module is used to monitor the running state of the press by acquiring the state of the plurality of photoelectric processing units.

[0010] In one embodiment, the press includes a material placement unit for placing press-bonded material.

[0011] The material placement unit includes multiple hot press plates distributed in parallel. When the press is in a non-pressing state, the multiple hot press plates are spaced apart. When the press is in a pressing state, the spacing between adjacent hot press plates is compressed.

[0012] Each hot press plate is provided with a target material placement area, which is used to place the pressed material;

[0013] The status monitoring module is also used to monitor whether the pressed material is placed in the target material placement area by acquiring the status of multiple photoelectric processing units.

[0014] In one embodiment, the device includes a heating module, the heating module comprising:

[0015] Hot oil pipeline, connected to an external hot oil delivery module;

[0016] The flow channel is located inside each hot press plate and is connected to the hot oil pipeline.

[0017] In one embodiment, the press further includes a pressing module connected to a material placement unit. The pressing module includes a movable unit and a thrust unit, with one end of the movable unit connected to the thrust unit and the other end of the movable unit connected to the material placement unit.

[0018] The movable unit is used to compress the gap between adjacent hot press plates under the push of the thrust unit.

[0019] In one embodiment, the press further includes a first set of support modules and a second set of support modules;

[0020] The first set of support modules includes a first support unit and a second support unit arranged opposite to each other. The first support unit, the movable unit, multiple hot press plates and the second support unit are arranged in parallel. The movable unit is located between the first support unit and the second support unit. The thrust unit passes through the first support unit and is connected to the movable unit. The multiple hot press plates include at least a first hot press plate fixed to the movable unit and a second hot press plate fixed to the second support unit.

[0021] The second set of support modules includes a third support unit and a fourth support unit arranged opposite to each other. The third support unit and the fourth support unit are respectively vertically connected to multiple hot press plates.

[0022] In one embodiment, the device further includes a heat insulation module, which includes:

[0023] The first heat insulation unit is disposed between the first hot press plate and the movable unit, and the movable unit forms a thermal insulation between itself and the material placement unit through the first heat insulation unit;

[0024] A second heat insulation unit is arranged between the second support unit and the material placing unit, and the second support unit is thermally insulated from the material placing unit by the second heat insulation unit.

[0025] In one embodiment, the optoelectronic processing module includes an optoelectronic processing module arranged on the third support unit, and the optoelectronic processing module includes:

[0026] A first optoelectronic processing unit is arranged at a first region adjacent to a placing region of the first heat plate when the press is in a non-pressing state, and the placing region includes a target material placing region and a non-target material placing region. The first optoelectronic processing unit is configured to monitor whether the pressing material is placed in the target material placing region.

[0027] A second optoelectronic processing unit is arranged at a third region adjacent to a second region of the third heat plate when the press is in a non-pressing state, and the third heat plate is the closest heat plate to the second heat plate. The second region refers to a region in the target material placing region of the third heat plate that is less than a preset distance threshold from the second heat plate. The second optoelectronic processing unit is configured to monitor the operating state of the press. When the press is in a non-pressing state, the second optoelectronic processing unit is not blocked by the third heat plate. When the press is in a pressing state, the second optoelectronic processing unit is blocked by the third heat plate.

[0028] A third optoelectronic processing unit is arranged at a fourth region blocked by the movable unit when the press is in a non-pressing state. The third optoelectronic processing unit is configured to monitor the operating state of the press. When the press is in a pressing state, the third optoelectronic processing unit is not blocked by the movable unit.

[0029] In one embodiment, the material placing unit further includes a material inlet at the first region, and the material inlet is configured to transport the pressing material from the outside to the plurality of heat plates. The first optoelectronic processing unit includes:

[0030] A first optoelectronic processing assembly is arranged at a fifth region adjacent to the material inlet in the first region, and the fifth region is not adjacent to the target material placing region of the first heat plate.

[0031] A second optoelectronic processing assembly is arranged at a target region in the first region, and the target region is adjacent to the target material placing region of the first heat plate.

[0032] A third optoelectronic processing assembly is arranged at a sixth region away from one end of the material inlet in the first region, and the sixth region is not adjacent to the target material placing region of the first heat plate.

[0033] In one of the embodiments, the light emitting module further comprises a plurality of light emitting unit groups, each of the light emitting unit groups comprises light emitting units symmetrically distributed on the fourth support unit and light receiving units symmetrically distributed on the third support unit, wherein the symmetry axis of each of the light emitting unit groups passes through the center of the material placing unit and is perpendicular to the axial direction of the material placing unit.

[0034] The plurality of light emitting units are configured to emit light signals towards the inside of the press along the direction of the hot platen.

[0035] The plurality of light receiving units are arranged on each of the optoelectronic processing units, and the light receiving units are configured to receive the light signals emitted by the first light emitting units symmetrically distributed thereon.

[0036] In one of the embodiments, the device comprises a plurality of observation groups, each of the observation groups comprises a first observation module and a second observation module, the first observation module comprises a first observation base and a first observation unit, and the second observation module comprises a second observation base and a second observation unit, the first observation unit and the second observation unit are light-transmitting elements.

[0037] The plurality of first observation bases are arranged on the third support unit, and each of the first observation bases is configured to fix the first observation unit and the light emitting unit, and the first observation unit is configured to observe the running state of the press and the placement of the pressed material.

[0038] The plurality of second observation bases are arranged on the fourth support unit, and each of the second observation bases is configured to fix the second observation unit and the light receiving unit, and the second observation unit is configured to observe the running state of the press and the placement of the pressed material.

[0039] The press running state monitoring device described above emits light signals to the inside of the press through the optoelectronic processing module, so that the plurality of optoelectronic processing units arranged on the press and on the light emitting line of the light emitting module are in the conducting state when the light signals are sensed and are in the open state when the light signals are not sensed, and then the state monitoring module connected with the light emitting module accurately judges whether each of the optoelectronic processing units is in the conducting state or the open state, and accurately judges whether the internal structure of the press is pressed based on the state of the plurality of optoelectronic processing units, that is, accurately monitors the running state of the press. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0041] Figure 1 A structural block diagram of the press operation state monitoring device 1000 in one embodiment;

[0042] Figure 2 A structural block diagram of the press operation state monitoring device 1000 in one specific application embodiment;

[0043] Figure 3 A schematic diagram of the distribution positions of the photoelectric switches in one specific application embodiment when the press 200 is in the non-pressing state or the pressing state;

[0044] Figure 4 A schematic diagram of the structure of the light emitting unit group in one specific application embodiment.

[0045] Reference signs: press operation state monitoring device 1000, light emitting unit group 110, light emitting unit 120, light receiving unit 130, press 200, hot platen 212, pressed material 220, movable unit 232, thrust unit 234, lower cross beam 242, upper cross beam 244, left side plate 252, right side plate 254, first photoelectric switch 332, second photoelectric switch 334, third photoelectric switch 336, fourth photoelectric switch 340, fifth photoelectric switch 350, state monitoring module 400, first observation base 710, first observation unit 720. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments of the present application and is not intended to limit the present application.

[0048] It can be understood that the terms "first", "second", and the like can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element. For example, without departing from the scope of the present application, a first resistor can be referred to as a second resistor, and similarly, a second resistor can be referred to as a first resistor. The first resistor and the second resistor are both resistors, but they are not the same resistor.

[0049] It can be understood that the "connection" in the following embodiments should be understood as "electrical connection", "communication connection" and the like if the circuits, modules, units and the like connected by the connection have the transmission of electrical signals or data between each other.

[0050] It can be understood that "at least one" means one or more, and "multiple" means two or more. "At least part of the element" means part or all of the element.

[0051] As used herein, the singular forms "a", "an" and "the" can also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "comprise / comprising" or "have / having" or the like specifies the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but does not exclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in the specification includes any and all combinations of the related listed items.

[0052] As shown in Figure 1 The press running state monitoring device 1000 of an embodiment includes:

[0053] The light emitting module 100 is configured to emit a light signal into the press 200;

[0054] The photoelectric processing module 300 is arranged in the press 200 and on the light emitting line of the light emitting module 100. The photoelectric processing module 300 includes a plurality of photoelectric processing units 320.

[0055] The state monitoring module 400 is connected with the photoelectric processing module 300. The state monitoring module 400 is configured to monitor the running state of the press 200 by acquiring the states of the plurality of photoelectric processing units 320.

[0056] In particular, for each photoelectric processing unit 320, the photoelectric processing unit 320 is in a conduction state when the photoelectric processing unit 320 senses the light signal, and the photoelectric processing unit 320 is in a disconnection state when the photoelectric processing unit 320 does not sense the light signal.

[0057] Specifically, the press running state monitoring device 1000 includes the photoelectric processing module 300, the light emitting module 100 and the state monitoring module 400. The press running state monitoring device 1000 is configured to monitor the running state of the press 200. Specifically,

[0058] The running state of the press 200 includes a non-pressing state and a pressing state. The non-pressing state is also an open state. When the press 200 is in the open state, the press 200 has not been pressed. When the press 200 is in the pressing state, the press 200 has been pressed. At this time, the structure position inside the press 200 will change, which is different from the structure position when the press 200 is in the open state.

[0059] The photoelectric processing module 300 includes a plurality of photoelectric processing units 320 distributed outside the press 200. The outside refers to the side close to the outside world, which is opposite to the inside. The light signal can pass through the inside of the press 200 and be sensed by the photoelectric processing unit 320 arranged outside the press.

[0060] The photoelectric processing unit 320 is used to perform signal conversion between the optical signal and the electrical signal, that is, to convert the optical signal into the electrical signal. When the photoelectric processing unit 320 senses the light signal, the photoelectric processing unit 320 converts the sensed light signal into the electrical signal. At this time, the photoelectric processing unit 320 is in the on state. When the photoelectric processing unit 320 does not sense the light signal, the photoelectric processing unit 320 cannot convert the sensed light signal into the electrical signal. At this time, the photoelectric processing unit 320 is in the off state. In actual application, the photoelectric processing unit 320 can be a photoelectric processing switch.

[0061] It should be noted that the photoelectric processing module 300 is arranged outside the press 200, in order to reduce the requirements of the plurality of photoelectric processing units 320 and the cable in the high-temperature and low-vacuum volatile environment of the press 200, that is, to reduce the possibility of arranging the high-temperature-resistant cable and the mechanical switch inside the press 200, effectively reduce the difficulty of electrical arrangement of the equipment, and reduce the production cost of the equipment.

[0062] Therefore, based on the characteristics of the photoelectric processing unit 320 and the press 200 when being pressed, the press running state monitoring device 1000 is constructed. The press running state monitoring device 1000 not only is provided with the photoelectric processing module 300 including a plurality of photoelectric processing units 320, but also is provided with a light emitting module 100 and a state monitoring module 400. The light emitting module 100 is used to emit the light signal to the inside of the press 200. The photoelectric processing module 300 is arranged on the light emitting line of the photoelectric emitting module, that is, the plurality of photoelectric processing units 320 are arranged on the light emitting line of the photoelectric emitting module. If the photoelectric processing unit 320 senses the light signal emitted by the light emitting module 100, the photoelectric processing unit 320 will be in the on state. If the photoelectric processing unit 320 does not sense the light signal emitted by the light emitting module 100, the photoelectric processing unit 320 will be in the off state.

[0063] When the press 200 is in the non-pressing state or the pressing state, the positions of the photoelectric processing units 320 do not change, but due to the compression of the internal structure of the press 200, some photoelectric processing units 320 that were not originally blocked may be blocked, wherein the unblocked photoelectric processing units 320 can sense the light signals emitted by the light emitting module 100, and the blocked photoelectric processing units 320 cannot sense the light signals emitted by the light emitting module 100. Therefore, in both the non-pressing state and the pressing state of the press 200, the same photoelectric processing unit 320 can be in the on state in the non-pressing state and can also be in the off state in the pressing state. The same photoelectric processing unit 320 can be in the on state in the non-pressing state and can also be in the on state in the pressing state, that is, when the press 200 is in different operating states, the state of the same photoelectric processing unit 320 can change or can not change. The state monitoring module 400 can accurately monitor the operating state of the press 200 by obtaining the state combination of the plurality of photoelectric processing units 320.

[0064] In the press operating state monitoring device 1000, the photoelectric processing module 300 emits light signals to the inside of the press 200, so that the plurality of photoelectric processing units 320 arranged in the press 200 and on the light emitting line of the light emitting module 100 are in the on state when sensing the light signals and are in the off state when not sensing the light signals. Further, the state monitoring module 400 connected to the light emitting module 100 accurately judges whether each photoelectric processing unit 320 is in the on state or the off state, and accurately judges whether the internal structure of the press 200 is pressed based on the state of the plurality of photoelectric processing units 320, that is, accurately monitors the operating state of the press 200.

[0065] In an exemplary embodiment, the press 200 includes a material placing unit for placing pressing materials; the material placing unit includes a plurality of hot pressing plates distributed in parallel, wherein when the press 200 is in the non-pressing state, the plurality of hot pressing plates are distributed at intervals, and when the press 200 is in the pressing state, the interval distance between adjacent hot pressing plates in the plurality of hot pressing plates is compressed; each hot pressing plate is provided with a target material placing area for placing pressing materials; and the state monitoring module 400 is further configured to monitor whether the pressing materials are placed in the target material placing area by the states of the plurality of photoelectric processing units 320 obtained.

[0066] The hot pressing plate is a pressing plate that provides heating and material carrying functions, that is, the hot pressing plate can not only carry the compression material, but also heat the carried compression material. It should be explained that the compression material is generally a PCB (Printed circuit board), and the PCB is usually a multi-layer board before compression. Therefore, the PCB needs to be heated during compression, so that the multi-layer board can be efficiently fused together.

[0067] Specifically, the material placing unit inside the pressing machine 200 is composed of a plurality of hot pressing plates. When the pressing machine 200 is in a non-compression state, the plurality of hot pressing plates are distributed at intervals, for example, the plurality of hot pressing plates can be distributed at equal intervals or not at equal intervals. In actual production, they are generally distributed at equal intervals.

[0068] When the pressing machine 200 is in a compression state, the structure position inside the pressing machine 200 changes, and the interval distance between adjacent hot pressing plates in the plurality of hot pressing plates is compressed.

[0069] The hot pressing plate is also provided with a target material placing area. It can be understood that not all areas of the hot pressing plate are used for placing target materials. The target material placing area can be one area of the hot pressing plate, for example, the target material placing area is located in the central area of the hot pressing plate, and the area of the target material placing area is smaller than the carrying area of the hot pressing plate. The area of the hot pressing plate excluding the target material placing area is a non-target material placing area. When the compression material is transported to the non-target material placing area, the compression material is not in the correct placing position, and the material may not be transported to the correct position or the material may be pushed too far. When the compression material is transported to the target material placing area, the compression material is in the correct placing position.

[0070] In the case that the light emitting module 100 emits light signals to the inside of the pressing machine 200, and the plurality of photoelectric processing units 320 are distributed inside the pressing machine 200, the state monitoring module 400 can also monitor whether the compression material is placed in the target material placing area by obtaining the state of the plurality of photoelectric processing units 320. For example, when the light emitting module 100 emits light to the photoelectric processing unit 320 corresponding to the target material placing area, if there is compression material in the target material placing area, the compression material will block the light emitting circuit of the light emitting module 100 to the photoelectric processing unit 320, at this time the photoelectric processing unit 320 will be in an open state. For another example, when the light emitting module 100 emits light to the photoelectric processing unit 320 corresponding to the target material placing area, if there is no compression material in the target material placing area, the compression material cannot block the light emitting circuit of the light emitting module 100 to the photoelectric processing unit 320, at this time the photoelectric processing unit 320 will be in a conducting state.

[0071] In the above embodiment, the material placing unit is arranged to carry and heat the material, and the material placing unit includes a plurality of hot pressing plates arranged in parallel, so that the utilization rate of the hot pressing plates can be improved to a greater extent, and further, the state of the plurality of photoelectric processing units 320 can be obtained to monitor whether the compression material is placed in the target material placing area.

[0072] In an exemplary embodiment, the device includes a heating module, and the heating module includes:

[0073] A hot oil pipeline is connected with an external hot oil conveying module, and a flow channel is arranged in each hot pressing plate and communicates with the hot oil pipeline.

[0074] Specifically, the heating module is a module for heating the hot pressing plates, and a flow channel is arranged in each hot pressing plate and communicates with the heating module. The heating module is generally a hot oil pipeline connected with an external hot oil conveying module. When the external hot oil conveying module conveys high-temperature hot oil into the interior of the press 200 through the hot oil pipeline, the high-temperature hot oil is input into the flow channel in the hot pressing plate to heat the hot pressing plate through heat exchange, and then the compression material placed on the hot pressing plate is heated. In actual application, the heating module can be arranged at various positions of the press 200, and is generally arranged at a side of the press 200 away from the material inlet 360.

[0075] In the above embodiment, the heating module and the flow channel are arranged to obtain high-temperature hot oil conveyed from outside to heat the hot pressing plates, and then the compression material placed on the hot pressing plates is heated by the heated hot pressing plates, so that the compression material can be efficiently compressed and fused in subsequent processing.

[0076] In an exemplary embodiment, the press 200 further includes a compression module connected with the material placing unit, and the compression module includes a moving unit and a thrust unit, one end of the moving unit is connected with the thrust unit, and the other end of the moving unit is connected with the material placing unit.

[0077] The moving unit is used to compress the spacing distance between adjacent hot pressing plates under the pushing of the thrust unit.

[0078] Specifically, the press 200 further includes a compression module connected with the material placing unit, and the compression module is used to push the material placing unit for compression.

[0079] The compression module includes a moving unit and a thrust unit, one end of the moving unit is connected with one end of the thrust cylinder, and the other end of the moving unit is connected with the material placing unit, which can be considered as the material placing unit being fixed to the other end of the moving unit, and the other end of the thrust cylinder is suspended for being controlled by the worker to push.

[0080] The movable unit can be pushed by the pushing unit to push the material placing unit at the same time to compress the interval distance between the adjacent hot pressing plates in the plurality of hot pressing plates, and the pressing material placed between the adjacent hot pressing plates can also be compressed at the same time. In practical applications, the pushing unit is generally a pushing oil cylinder.

[0081] In the above embodiment, by arranging the movable unit and the pushing unit, the interval distance between the plurality of hot pressing plates can be efficiently compressed, and the pressing material between the adjacent hot pressing plates can be compressed.

[0082] In an exemplary embodiment, the press 200 further comprises a first set of support modules and a second set of support modules.

[0083] The first set of support modules comprises oppositely arranged first and second support units, the first support unit, the plurality of hot pressing plates, the movable unit, and the second support unit are arranged in parallel, the movable unit is between the first and second support units, the pushing unit is connected through the first support unit and the movable unit, the plurality of hot pressing plates at least comprises a first hot pressing plate fixed to the movable unit, and a second hot pressing plate fixed to the second support unit; the second set of support modules comprises oppositely arranged third and fourth support units, the third and fourth support units are respectively connected perpendicularly to the plurality of hot pressing plates.

[0084] Specifically, the press 200 further comprises a first set of support modules and a second set of support modules, the first set of support modules and the second set of support modules together form a frame module of the press 200, the first set of support modules and the second set of support modules are used to support the press 200, protect the material placing unit and the pressing module inside the press 200, and can also isolate the material placing unit or the pressing module inside the press 200 from the outside world.

[0085] The first set of support modules comprises oppositely arranged first and second support units, and the second set of support modules comprises oppositely arranged third and fourth support units, the support units can be constructed in the form of beams or plates, for example, the first support unit is an upper beam, and the second support unit is a lower beam, for example, the third support unit is a left plate, and the fourth support unit is a right plate, or the third support unit is a right plate, and the fourth support unit is a left plate.

[0086] The first supporting unit, the movable unit, the plurality of hot pressing plates, and the second supporting unit are arranged in parallel, and the movable unit is between the first supporting unit and the second supporting unit. The thrust unit is connected to one end of the first supporting unit and the movable unit, and the other end of the movable unit is connected to the material placing unit, that is, the plurality of hot pressing plates, and the plurality of hot pressing plates are between the movable unit and the second supporting unit. In practical application, the thrust unit can be connected to one end of the first supporting unit and the movable unit by a bolt or other connection mode.

[0087] Among the plurality of hot pressing plates, there is a first hot pressing plate fixed to the other end of the movable unit, and a second hot pressing plate fixed to the second supporting unit. It needs to be explained that the purpose of fixing the first hot pressing plate to the other end of the movable unit is to facilitate the movement of the first hot pressing plate in the direction pushed by the thrust unit to compress the distance between adjacent hot pressing plates. The purpose of fixing the second hot pressing plate to the second supporting unit is that the second supporting unit is fixed and does not change position, so the second hot pressing plate also does not change position. In the case that the first hot pressing plate at one end is pushed and the second hot pressing plate at the other end is stationary, the spacing distance between the intermediate hot pressing plates will change. In addition, in the case that the first set of supporting modules are upper and lower cross beams, the first hot pressing plate is the bottommost hot pressing plate, and the second hot pressing plate is the topmost hot pressing plate.

[0088] In the case that the first supporting unit, the plurality of hot pressing plates, the movable unit, and the second supporting unit are arranged in parallel, the third supporting unit and the fourth supporting unit are respectively connected to the plurality of hot pressing plates perpendicularly to protect the compression material placed on the hot pressing plates from falling out of the press 200.

[0089] In the above embodiment, by relatively arranging the first supporting unit and the second supporting unit, and relatively arranging the third supporting unit and the fourth supporting unit, the support and protection functions of the inside of the press 200 are realized, and the first hot pressing plate is fixed to the movable unit and the second hot pressing plate is fixed to the second supporting unit, so that the spacing distance between the intermediate hot pressing plates can change to accurately realize the compression of the compression material.

[0090] In an exemplary embodiment, the device further comprises a heat insulation module, and the heat insulation module comprises:

[0091] The first heat insulation unit is arranged between the first hot pressing plate and the movable unit, and the movable unit is thermally insulated between the first heat insulation unit and the material placing unit; and the second heat insulation unit is arranged between the second hot pressing plate and the second supporting unit, and the second supporting unit is thermally insulated between the second heat insulation unit and the material placing unit.

[0092] Specifically, the heat insulation module includes a first heat insulation unit and a second heat insulation unit, and is used to insulate heat of two adjacent modules. The first heat insulation unit is arranged between the first hot press plate and the movable unit, that is, thermal isolation is formed between the movable unit and the first hot press plate, so as to prevent the first hot press plate from conducting heat to the movable unit and reduce heat loss of the first hot press plate. The second heat insulation unit is arranged between the second hot press plate and the second support unit, that is, thermal isolation is formed between the second support unit and the material placing unit, so as to prevent the second hot press plate from conducting heat to the movable unit and reduce heat loss of the second hot press plate. In addition, the first heat insulation unit and the second heat insulation unit are made of the same material. In actual application, the heat insulation unit is actually a heat insulation plate.

[0093] In the above embodiment, by arranging the first heat insulation unit between the first hot press plate and the movable unit and arranging the second heat insulation unit between the second hot press plate and the second support unit, heat loss inside the press 200 can be reduced.

[0094] In an exemplary embodiment, the photoelectric processing module 300 includes a photoelectric processing module 300 arranged on the third support unit, and the photoelectric processing module 300 includes:

[0095] The first photoelectric processing unit is arranged at a first region which is in contact with a placing region of the first hot press plate when the press 200 is in the non-pressing state, and the placing region includes a target material placing region and a non-target material placing region. The first photoelectric processing unit is used to monitor whether the pressing material is placed in the target material placing region.

[0096] The second photoelectric processing unit is arranged at a third region which is in contact with a second region of the third hot press plate when the press 200 is in the non-pressing state, and the third hot press plate is the closest hot press plate to the second hot press plate. The second region refers to a region in the target material placing region of the third hot press plate which is less than a preset distance threshold from the second hot press plate. The second photoelectric processing unit 320 is used to monitor the operating state of the press 200. When the press 200 is in the non-pressing state, the second photoelectric processing unit is not blocked by the third hot press plate. When the press 200 is in the pressing state, the second photoelectric processing unit is blocked by the third hot press plate.

[0097] The third photoelectric processing unit is arranged at a fourth region which is blocked by the movable unit when the press 200 is in the non-pressing state. The third photoelectric processing unit is used to monitor the operating state of the press 200. When the press 200 is in the pressing state, the third photoelectric processing unit is not blocked by the movable unit.

[0098] Specifically, the photoelectric processing module 300 is arranged outside the third support unit and can sense the light emitted inside the press. In actual application, the third support unit can be the left side plate or the right side plate. Further, the photoelectric processing module 300 can be arranged on the third support unit or the fourth support unit, or can be arranged on both the third support unit and the fourth support unit. Taking the case that the photoelectric processing module 300 is arranged on the third support unit as an example, the position distribution of the first photoelectric processing unit, the second photoelectric processing unit and the third photoelectric processing unit is described in detail in the case that the press 200 is in the non-pressing state:

[0099] The first photoelectric processing unit is arranged on the third support unit at a first region adjacent to the placement region of the first hot press plate. It should be noted that the placement region of the first hot press plate includes not only the target material placement region but also the non-target material placement region. That is, the first photoelectric processing unit can be arranged not only on the third support unit at a region adjacent to the target material placement region of the first hot press plate but also on the third support unit at a region adjacent to the non-target material placement region of the first hot press plate.

[0100] In the case that the first photoelectric processing unit is arranged on the third support unit at a region adjacent to the target material placement region of the first hot press plate and the first photoelectric processing unit is arranged on the light emitting line of the light emitting module 100, the light emitting module 100 can be used to monitor whether the first photoelectric processing unit senses the light signal at this time, and further determine whether there is pressing material at the target material placement region. For example, if the first photoelectric processing unit does not sense the light signal at this time, it indicates that there is pressing material at the target material placement region blocking the light. In the case that the first photoelectric processing unit is arranged on the third support unit at a region adjacent to the non-target material placement region of the first hot press plate, the light emitting module 100 can be used to monitor whether the first photoelectric processing unit senses the light signal at this time, and further determine whether there is pressing material at the non-target material placement region. For example, if the first photoelectric processing unit does not sense the light signal at this time, it indicates that there is pressing material at the non-target material placement region blocking the light. Therefore, the first photoelectric processing unit is used to monitor whether the pressing material is placed in the target material placement region.

[0101] In addition, the area where the press 200 is in a non-pressing state and the placement area of the other hot platen except the first hot platen can also be provided with the photoelectric processing unit 320, but generally, the first area provided on the third support unit and connected with the first hot platen is sufficient to meet the monitoring needs of the present application. Specifically, due to the program setting of the feeding, the feeding is from the direction of the movable unit to the direction of the second support unit. If there is no pressing material on the first hot platen fixed on the movable unit, there is also no pressing material on the other hot platen. If there is pressing material on the first hot platen fixed on the movable unit, there can be pressing material on the other hot platen, or there can be no pressing material on the other hot platen. Therefore, the first photoelectric processing unit provided on the first area of the third support unit is sufficient to meet the monitoring needs of the present application.

[0102] The second photoelectric processing unit is provided on the third area of the third support unit and connected with the second area of the third hot platen. The third hot platen is the closest hot platen to the second hot platen, and the second area of the third hot platen is part of the target material placement area of the third hot platen, which is close to the third hot platen and has a distance less than a preset distance threshold from the second hot platen. It can be considered that the third area is the area of the target material placement area of the third hot platen connected with the second hot platen, and the height of the area is less than the height of the third hot platen. Therefore, in the case that the press 200 is in a pressing state, the distance between the hot platens is gradually compressed until it tends to 0, and the second photoelectric processing unit is blocked by the third hot platen. The second photoelectric processing unit is in an off state. In addition, since there is a certain spacing distance between the multiple hot platens in the case that the press 200 is in a non-pressing state, the second photoelectric processing unit is not blocked by the third hot platen in the case that the press 200 is in a non-pressing state. The second photoelectric processing unit is in a conducting state.

[0103] The third photoelectric processing unit is provided on the fourth area of the third support unit which is blocked by the movable unit. That is, in the case that the press 200 is in a non-pressing state, the third photoelectric processing unit is blocked by the movable unit, and the third photoelectric processing unit is in an off state. In the case that the press 200 is in a pressing state, the movable unit will move, but the third photoelectric processing unit is fixed on the third support unit and does not move. At this time, the third photoelectric processing unit is not blocked by the movable unit, and the third photoelectric processing unit is in a conducting state.

[0104] Based on the above analysis, in the present application, as shown in Table 1, the running state of the press 200 can be monitored based on the state combination of the second photoelectric processing unit and the third photoelectric processing unit.

[0105] For example, when the second optoelectronic processing unit is in the off state and the third optoelectronic processing unit is in the on state, the press 200 is in the non-pressing state, and when the second optoelectronic processing unit is in the on state and the third optoelectronic processing unit is in the off state, the press 200 is in the pressing state. It should be noted that the press 200 in the pressing state can be divided into a complete pressing state or an invalid state. If the press 200 is in the complete pressing state, the target material placement area of the pressing material on the hot platen is required. In some special cases, for example, when the second optoelectronic processing unit and the third optoelectronic processing unit are both in the off state, or the second optoelectronic processing unit and the third optoelectronic processing unit are both in the on state, the press 200 is in the invalid state.

[0106] Table 1: Operating state of the press corresponding to the state combination of the optoelectronic processing unit

[0107]

[0108] In the above embodiment, the optoelectronic processing module 300 is arranged at a specific position of the third support unit when the press 200 is in the non-pressing state, for example, the first optoelectronic processing unit arranged at the first region connected with the placement area of the first hot platen, the second optoelectronic processing unit arranged at the third region connected with the second region of the third hot platen, and the third optoelectronic processing unit blocked by the moving unit. The first optoelectronic processing unit can accurately monitor whether the pressing material is in the correct target material placement area, and the second optoelectronic processing unit and the third optoelectronic processing unit can accurately monitor the operating state of the press 200.

[0109] In an exemplary embodiment, the material placement unit further comprises a material inlet 360 in the first region, the material inlet 360 being used for conveying the pressing material from the outside to the plurality of hot platens, and the first optoelectronic processing unit comprises:

[0110] The first optoelectronic processing assembly is arranged in the fifth region close to the material inlet 360 in the first region, and the fifth region is not connected with the target material placement area of the first hot platen; the second optoelectronic processing assembly is arranged in the target region in the first region, and the target region is connected with the target material placement area of the first hot platen; and the third optoelectronic processing assembly is arranged in the sixth region away from one end of the material inlet 360 in the first region, and the sixth region is not connected with the target material placement area of the first hot platen.

[0111] Specifically, the material placement unit further comprises a material inlet 360 for conveying the pressing material from the outside to the plurality of hot platens. The first optoelectronic processing unit is located in the horizontal direction of the material inlet 360. The first optoelectronic processing unit comprises a first optoelectronic processing assembly, a second optoelectronic processing assembly, and a third optoelectronic processing assembly.

[0112] Specifically, the first photoelectric processing component is arranged in the fifth region close to the feeding port 360 in the first region. Since the feeding port 360 can transport the pressing material into the inside of the press 200, when the first photoelectric processing component is arranged in the fifth region close to the feeding port 360 and the fifth region is not connected to the target material placement area of the first hot press plate, it can be considered that the first photoelectric processing component substantially monitors whether the non-target material placement area close to the feeding port 360 on the first hot press plate is placed with the pressing material. If the first photoelectric processing component does not sense the light signal and is in the off state, it indicates that the non-target material placement area close to the feeding port 360 on the first hot press plate is placed with the pressing material, and it is considered that the material has not been pushed to the position and needs to be continuously pushed to the target material placement area.

[0113] The first photoelectric processing component is arranged in the fifth region close to one end of the feeding port 360 in the first region. Since the feeding port 360 can transport the pressing material into the inside of the press 200, when the first photoelectric processing component is arranged in the fifth region close to the feeding port 360 and the fifth region is not connected to the target material placement area of the first hot press plate, it can be considered that the first photoelectric processing component substantially monitors whether the non-target material placement area close to the feeding port 360 on the first hot press plate is placed with the pressing material. If the first photoelectric processing component does not sense the light signal and is in the off state, it indicates that the non-target material placement area close to the feeding port 360 on the first hot press plate is placed with the pressing material, and it is considered that the material has not been pushed to the position and needs to be continuously pushed to the target material placement area.

[0114] The second photoelectric processing component is arranged in the target region in the first region, that is, the region connected to the target material placement area of the first hot press plate. It can be considered that the second photoelectric processing component substantially monitors whether the target material placement area of the first hot press plate is placed with the pressing material. If the second photoelectric processing component does not sense the light signal and is in the off state, it indicates that the target material placement area of the first hot press plate is placed with the pressing material, and it is considered that the material has reached the preset position and does not need to be continuously pushed.

[0115] The third photoelectric processing component is arranged in the sixth region away from one end of the feeding port 360 in the first region. Since the feeding port 360 can transport the pressing material into the inside of the press 200, when the third photoelectric processing component is arranged in the sixth region away from the feeding port 360 and the sixth region is not connected to the target material placement area of the first hot press plate, it can be considered that the third photoelectric processing component substantially monitors whether the non-target material placement area away from the feeding port 360 on the first hot press plate is placed with the pressing material. If the third photoelectric processing component does not sense the light signal and is in the off state, it indicates that the non-target material placement area away from the feeding port 360 on the first hot press plate is placed with the pressing material, and it is considered that the material is over-pushed, that is, the pushed material exceeds the preset planned position and needs to be re-transported.

[0116] Based on the above analysis, when the press is in a non-pressing state, the placement of the pressing material can be monitored through the state combination of the first, second and third photoelectric processing components. As shown in Table 2, the following situations can exist:

[0117] First, when the pressing material is pushed to the target material placement area, the first and third photoelectric processing components are not blocked by the pressing material and can sense the light signal, and the second photoelectric processing component is blocked by the pressing material and cannot sense the light signal. At this time, the first and third photoelectric processing components are in a conductive state, and the second photoelectric processing component is in a disconnected state.

[0118] Second, when the pressing material is not pushed into place, the third photoelectric processing component is not blocked by the pressing material and can sense the light signal, and the second and first photoelectric processing components are blocked by the pressing material and cannot sense the light signal. At this time, the third photoelectric processing component is in a conductive state, and the second and first photoelectric processing components are in a disconnected state.

[0119] Third, when the pressing material is over-pushed, the first photoelectric processing component is not blocked by the pressing material and can sense the light signal, and the third and second photoelectric processing components are blocked by the pressing material and cannot sense the light signal. At this time, the first photoelectric processing component is in a conductive state, and the third and second photoelectric processing components are in a disconnected state.

[0120] Fourth, when there is no pressing material placed on the hot platen, the first, second and third photoelectric processing components are not blocked by the pressing material and can sense the light signal. At this time, the first, second and third photoelectric processing components are in a conductive state.

[0121] In other state combinations of the first, second and third photoelectric processing components, the press is in an invalid state.

[0122] Table 2 Different placement situations of the pressing material corresponding to the state combination of the photoelectric processing components when the press is in a non-pressing state

[0123]

[0124] In addition, by monitoring whether the pressing material is fed into place, the press 200 can also be maintained in a timely manner. For example, when the pressing material is over-pushed, it will cause the pressing material to impact some structures of the press 200, such as the hot oil pipeline 510 on the rear side, causing pipeline oil leakage or damage, thereby reducing external interference during operation of the press 200.

[0125] In the above embodiment, by arranging the first photoelectric processing assembly, the second photoelectric processing assembly and the third photoelectric processing assembly, it can be determined whether the compression material is in the target material placement area, and the compression material not in the target material placement area can be processed in time.

[0126] In an exemplary embodiment, the light emitting module 100 further comprises a plurality of light emitting unit groups, each of the light emitting unit groups comprising light emitting units symmetrically distributed with respect to the fourth support unit and light receiving units symmetrically distributed with respect to the third support unit, wherein the symmetry axis of each of the light emitting unit groups 110 passes through the center of the material placement unit and is perpendicular to the axial direction of the material placement unit; wherein the plurality of light emitting units are configured to emit light signals towards the interior of the press 200 along the direction of the hot press plate; and the plurality of light receiving units are arranged in each of the photoelectric processing units 320, and the light receiving units are configured to receive the light signals emitted by the light emitting units symmetrically distributed with respect to the light receiving units.

[0127] Specifically, the light emitting module 100 further comprises a plurality of light emitting unit groups, each of the light emitting unit groups comprising light emitting units and light receiving units.

[0128] The photoelectric processing module 300 can be distributed on the third support unit, or on the fourth support unit, or on both the third support unit and the fourth support unit. In the case where the photoelectric processing module 300 is distributed on the third support unit, the light emitting units are distributed on the fourth support unit, and the light receiving units are distributed on the photoelectric processing module 300 of the third support unit. Similarly, in the case where the photoelectric processing module 300 is distributed on the fourth support unit, the light emitting units are distributed on the third support unit, and the light receiving units are distributed on the photoelectric processing module 300 of the fourth support unit. In the case where the photoelectric processing module 300 is distributed on both the third support unit and the fourth support unit, the light emitting units can be light receiving units at the same time, that is, the light emitting units distributed on the third support unit can be light receiving units distributed on the fourth support unit, or the light emitting units distributed on the fourth support unit can be light receiving units distributed on the third support unit, which is not limited herein.

[0129] Further, taking the case where the photoelectric processing module 300 and the light receiving units are distributed on the third support unit, and the light emitting units are distributed on the fourth support unit as an example, the light emitting units and the light receiving units are symmetrically distributed, and the symmetry axis thereof passes through the center of the material placement unit and is perpendicular to the axial direction of the material placement unit.

[0130] For each light emitting unit and light receiving unit of the light emitting unit group, the light emitting unit emits light signal to the inside of the press 200 along the direction of the hot plate, for example, when the light receiving unit is located in the first photoelectric processing unit, the corresponding light emitting unit can emit light signal to the target material placement area or the non-target material placement area of the first hot plate along the direction of the first hot plate, to monitor whether the target material placement area or the non-target material placement area is blocked by the pressing material, if there is pressing material blocking the light signal, and the support unit is light-transmitting, the symmetrically distributed light receiving unit cannot sense the light signal, at this time, the first photoelectric processing unit cannot sense the light signal, and is in the off state. Further, the light receiving unit can also monitor whether it can receive the light signal emitted by the symmetrically distributed light emitting unit.

[0131] In the above embodiment, by setting multiple light emitting unit groups, the placement of the pressing material and the running state of the press 200 can be accurately monitored through the state of the photoelectric processing unit 320.

[0132] In an exemplary embodiment, the device includes a plurality of observation groups, each observation group including a first observation module and a second observation module, the first observation module including a first observation base and a first observation unit, the second observation module including a second observation base and a second observation unit, the first observation unit and the second observation unit being light-transmitting elements; a plurality of first observation bases arranged on a third support unit, each first observation base being used to fix a first observation unit and a light receiving unit, the first observation unit being used to observe the running state of the press and the placement of the pressing material; a plurality of second observation bases arranged on a fourth support unit, each second observation base being used to fix a second observation unit and a light emitting unit, the second observation unit being used to observe the running state of the press and the placement of the pressing material.

[0133] Specifically, the first observation module includes a first observation base and a first observation unit, and the second observation module includes a first observation unit and a second observation unit, the first observation base is mounted on the third support unit, and the first observation unit is mounted on the fourth support unit, which can be mounted by bolts or other means.

[0134] The first observation unit is fixed to the first observation base, and the second observation unit is fixed to the first observation unit. More specifically, the first observation unit is fixed to the first observation base by a sealing ring, and the second observation unit is fixed to the first observation unit by a sealing ring. In practical applications, the first observation unit and the second observation unit are generally light-transmitting elements such as quartz glass.

[0135] Furthermore, the light emitting unit is also fixed to the first observation base of the fourth support unit, and the light receiving unit is also fixed to the second observation base of the third support unit. The light emitting unit emits a light signal from the first observation base of the fourth support unit, causing the light receiving unit fixed to the second observation base of the third support unit to sense the light signal, thereby detecting whether the light emitting unit has emitted a light signal.

[0136] Through the first observation unit and the second observation unit, the operating status inside the press 200 and the placement of the pressed material can be observed from the two support units of the press 200.

[0137] In the above embodiments, by setting the first observation unit and the second observation unit, the operating status inside the press 200 and the placement of the pressed material can be easily observed, making the entire operation of the press 200 transparent. In addition, by setting the first observation base and the first observation unit, the first observation unit can be stably fixed to the third support unit, and the second observation unit can be stably fixed to the fourth support unit.

[0138] like Figure 2 As shown, the structural features of the press operation status monitoring device 1000 are described in detail using a most specific embodiment. The first support unit is a lower crossbeam, the second support unit is an upper crossbeam, the third support unit is a left side plate, the fourth support unit is a right side plate, the heat insulation unit is a heat insulation plate, and the photoelectric processing module is a photoelectric switch.

[0139] The press operation status monitoring device 1000 includes: multiple light emitting unit groups 110, a first photoelectric switch 332, a second photoelectric switch 334, a third photoelectric switch 336, a fourth photoelectric switch 340, a fifth photoelectric switch 350, a status monitoring module 400, a first observation base 710, and a first observation unit 720, wherein... Figure 2 The second and third figures are schematic diagrams of the left side panel; the second observation base and the second observation unit on the right side panel are not shown.

[0140] Press 200 includes: multiple spaced-apart hot press plates 212 ( Figure 2 The two hot press plates are labeled as the top hot press plate 212 and the middle hot press plate, respectively, the moving unit 232, the thrust unit 234, the lower crossbeam 242, the upper crossbeam 244, the left side plate 252 and the right side plate 254.

[0141] Specifically, the lower crossbeam 242, the upper crossbeam 244, the left side plate 252 and the right side plate 254 jointly constitute the frame system of the hot press, the thrust unit 234 is connected with the lower crossbeam 242 through bolts, the upper part of the thrust unit 234 is connected with the movable unit 232 through the oil cylinder pressing plate, the upper part of the movable unit 232 is fixed with the heat insulation plate, the upper layer of the heat insulation plate is fixed with the bottom hot pressing plate, the heat insulation plate can prevent heat conduction and temperature loss of the bottom hot pressing plate, a plurality of hot pressing plates 212 are vertically and equidistantly distributed inside the press cavity, each hot pressing plate 212 is drilled with a flow channel, the flow channel is connected with the high-temperature hot oil outside through the rear hot oil pipeline of the press, when the hot oil flows through the flow channel inside the pressing plate, the hot pressing plate is heated through heat exchange, and then the compression material 220 placed on the hot pressing plate is heated, the top hot pressing plate is located at the top of the press 200, the top hot pressing plate is fixed on the upper crossbeam 244, and the upper crossbeam 244 is also provided with a heat insulation plate made of the same material as the lower part of the press between the top hot pressing plate, the two heat insulation plates have the same effect of preventing temperature loss inside the press, the first photoelectric switch 332, the second photoelectric switch 334, the third photoelectric switch 336, the fourth photoelectric switch 340 and the fifth photoelectric switch 350 are distributed on the left side plate 252 and the right side plate 254 respectively, when the press is in a non-compression state or a compression state, the distribution positions of the photoelectric switches are as shown in Figure 3 Fig. 1, wherein, when the press is in a non-compression state, the first photoelectric switch 332 is arranged in the fifth region close to the inlet in the first region, the fifth region is not connected with the target material placement area of the first hot pressing plate, the second photoelectric switch 334 is arranged in the target region, the target region is connected with the target material placement area of the first hot pressing plate, the third photoelectric switch 336 is arranged in the sixth region away from the inlet 360 at one end in the first region, the sixth region is not connected with the target material placement area of the first hot pressing plate, as can be seen from the left figure in Figure 3 , the first photoelectric switch 332 and the third photoelectric switch 336 are respectively more than a certain distance S away from the front and rear edges of the compression material 220, the fourth photoelectric switch 340 is arranged in the third region connected with the second region of the third hot pressing plate when the press 200 is in a non-compression state, the second region refers to the region in the target material placement area of the third hot pressing plate which is less than a preset distance threshold from the second hot pressing plate, for example, it can be the lower region close to the third hot pressing plate abutting the second hot pressing plate, and the fifth photoelectric switch 350 is arranged in the fourth region which is blocked by the movable unit when the press 200 is in a non-compression state. As for the right figure in Figure 3 , each photoelectric switch is fixed on the left side plate, so its position will not change, when the press is in a compression state, the interval distance between adjacent hot pressing plates is compressed, at this time, the fifth photoelectric switch 350 changes from being not blocked to being blocked by the third hot pressing plate, and the fourth photoelectric switch 340 changes from being blocked by the movable unit 232 to being not blocked by the movable unit 232.

[0142] The light emitting unit group is used for monitoring whether there is a compression material 220 on the hot platen 212 or monitoring the running state of the press 200. The light emitting unit group 110 includes a light emitting unit 120 and a light receiving unit 130. In the case of monitoring whether there is a compression material 220 on the hot platen 212, as shown in the figure, the light emitting unit 120 can emit a light signal through the inside of the press cavity to the light receiving unit 130. The light receiving unit 130 is arranged at a photoelectric switch to monitor whether the light signal emitted by the light emitting unit 120 is blocked. In turn, if the light signal emitted by the light emitting unit 120 is blocked, the photoelectric switch at the light receiving unit 130 is in an off state, and otherwise, it is in an on state. Figure 4

[0143] The state monitoring module 400 acquires the states of multiple photoelectric processing units, monitors the running state of the press 200 and the placement of the compression material 220. The first observation base 710 is bolted to the left side plate 252, and the second observation base is bolted to the right side plate 254. The first observation unit 720 and the light receiving unit 120 are fixed to the first observation base 710. Similarly, the second observation unit and the light emitting unit are fixed to the second observation base. The materials of the first observation unit 720 and the second observation unit are quartz glass, which is a light-transmitting element, so that light can pass through the inside of the press from the light emitting unit outside the press to the light receiving unit, which is then monitored by the photoelectric switch arranged at the light receiving unit.

[0144] Further, the off state is 0, and the on state is 1. The first photoelectric switch 332 is S1, the second photoelectric switch 334 is S2, the third photoelectric switch 336 is S3, the fourth photoelectric switch 340 is S4, and the fifth photoelectric switch 350 is S5. As shown in Table 3, the running state of the press can be monitored through the states of the fourth photoelectric switch 340 and the fifth photoelectric switch 350. Specifically:

[0145] 1. When the fourth photoelectric switch 340 does not sense a light signal in an off state, and the fifth photoelectric switch 350 senses a light signal in an on state, the press is in a non-compression state, i.e., an open state.

[0146] 2. When the fourth photoelectric switch 340 senses a light signal in an on state, and the fifth photoelectric switch 350 does not sense a light signal in an off state, the press is in a compression state.

[0147] In the case of the press being in an open state, as shown in Table 3, the placement of the compression material can be monitored through the first photoelectric switch 332, the second photoelectric switch 334, and the third photoelectric switch 336. Specifically: ​

[0148] 1. When the first photoelectric switch 332 and the third photoelectric switch 336 sense the light signal in the on state, and the second photoelectric switch 334 does not sense the light signal in the off state, the compression material is accurately placed in the target material placement area.

[0149] 2. When the first photoelectric switch 332 senses the light signal in the on state, and the third photoelectric switch 336 and the second photoelectric switch 334 do not sense the light signal in the off state, the compression material is over-pressed.

[0150] 3. When the third photoelectric switch 336 senses the light signal in the on state, and the second photoelectric switch 334 and the first photoelectric switch 332 do not sense the light signal in the off state, the compression material is not pressed in place.

[0151] 4. When the third photoelectric switch 336, the second photoelectric switch 334, and the third photoelectric switch 336 all sense the light signal in the on state, the compression material is not on the hot plate.

[0152] In the case that the press is in the compression state, as shown in Table 3, through the first photoelectric switch 332, the second photoelectric switch 334, and the third photoelectric switch 336, it can be monitored whether the press is in the fully compressed state.

[0153] Specifically, when the first photoelectric switch 332 and the third photoelectric switch 336 sense the light signal in the on state, and the second photoelectric switch 334 does not sense the light signal in the off state due to the shielding of the pressing force unit 234, the press is in the fully compressed state.

[0154] In other state combinations, the press is in the invalid state.

[0155] Table 3 Photoelectric switch state combination table

[0156]

[0157] In the description of the present specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0158] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present specification.

[0159] The above embodiments only express several implementation ways of the present application, and the description is specific and detailed, but it should not be understood as a limitation to the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A press operating condition monitoring device, characterized by, The device comprises: a light emitting module for emitting light signals into the press; a photoelectric processing module arranged in the press and on the light emitting line of the light emitting module, the photoelectric processing module comprising a plurality of photoelectric processing units, wherein for each photoelectric processing unit, the photoelectric processing unit is in a conducting state when the photoelectric processing unit senses a light signal, and the photoelectric processing unit is in a disconnected state when the photoelectric processing unit does not sense a light signal; a state monitoring module connected with the photoelectric processing module, the state monitoring module being configured to monitor the running state of the press by acquiring the states of the plurality of photoelectric processing units.

2. The monitoring device of claim 1, wherein, The press comprises a material placing unit for placing compression materials; The material placing unit comprises a plurality of hot platens arranged in parallel, wherein when the press is in a non-compression state, the plurality of hot platens are arranged at intervals, and when the press is in a compression state, the interval distance between adjacent hot platens is compressed; Each hot platen is provided with a target material placing area for placing compression materials; The state monitoring module is further configured to monitor whether the compression materials are placed in the target material placing area by acquiring the states of the plurality of photoelectric processing units.

3. The monitoring device of claim 2, wherein, The device comprises a heating module, which comprises: a hot oil pipeline connected with an external hot oil conveying module; a flow channel arranged inside each hot platen, the flow channel being in communication with the hot oil pipeline.

4. The monitoring device of claim 2, wherein, The press further comprises a compression module connected with the material placing unit, the compression module comprising a movable unit and a thrust unit, one end of the movable unit being connected with the thrust unit, and the other end of the movable unit being connected with the material placing unit; The movable unit is configured to compress the interval distance between adjacent hot platens under the pushing of the thrust unit.

5. The monitoring device of claim 4, wherein, The press further comprises a first set of support modules and a second set of support modules; The first set of support modules comprises oppositely arranged first and second support units, the first support unit, the movable unit, the plurality of hot platens, and the second support unit being arranged in parallel, the movable unit being arranged between the first and second support units, the thrust unit passing through the first support unit and the movable unit to be connected, and the plurality of hot platens comprising at least a first hot platen fixed to the movable unit and a second hot platen fixed to the second support unit; The second set of support modules comprises oppositely arranged third and fourth support units, the third and fourth support units being respectively connected perpendicularly with the plurality of hot platens.

6. The monitoring device of claim 5, wherein, The device further comprises a heat insulation module, which comprises: a first heat insulation unit arranged between the first hot platen and the movable unit, the movable unit being thermally insulated from the material placing unit by the first heat insulation unit; A second heat insulation unit is arranged between the second heat press plate and the second support unit, and the second support unit is thermally insulated from the material placing unit by the second heat insulation unit.

7. The monitoring device of claim 5, wherein, The photoelectric processing module comprises a photoelectric processing module arranged on the third support unit, and the photoelectric processing module comprises: A first photoelectric processing unit is arranged on a first region which is connected with a placing region of the first heat press plate when the press is in a non-pressing state, the placing region comprises a target material placing region and a non-target material placing region, and the first photoelectric processing unit is used for monitoring whether the pressing material is placed in the target material placing region; A second photoelectric processing unit is arranged on a third region which is connected with a second region of a third heat press plate among the plurality of heat press plates when the press is in a non-pressing state, the third heat press plate is the closest heat press plate to the second heat press plate, the second region refers to a region in the target material placing region of the third heat press plate which is less than a preset distance threshold from the second heat press plate, and the second photoelectric processing unit is used for monitoring the operating state of the press, in the case that the press is in a non-pressing state, the second photoelectric processing unit is not blocked by the third heat press plate, and in the case that the press is in a pressing state, the second photoelectric processing unit is blocked by the third heat press plate; A third photoelectric processing unit is arranged on a fourth region which is blocked by the movable unit when the press is in a non-pressing state, and the third photoelectric processing unit is used for monitoring the operating state of the press, in the case that the press is in a pressing state, the third photoelectric processing unit is not blocked by the movable unit.

8. The monitoring device of claim 7, wherein, The material placing unit further comprises a feeding port in the first region, the feeding port is used for conveying the pressing material from the outside to the plurality of heat press plates, and the first photoelectric processing unit comprises: A first photoelectric processing assembly is arranged in a fifth region close to the feeding port in the first region, and the fifth region is not connected with the target material placing region of the first heat press plate; A second photoelectric processing assembly is arranged in a target region in the first region, and the target region is connected with the target material placing region of the first heat press plate; A third photoelectric processing assembly is arranged in a sixth region away from one end of the feeding port in the first region, and the sixth region is not connected with the target material placing region of the first heat press plate.

9. The monitoring device of claim 7, wherein, The light emitting module further comprises a plurality of light emitting unit groups, each of the light emitting unit groups comprises a light emitting unit symmetrically distributed on the fourth support unit and a light receiving unit on the third support unit, wherein the symmetry axis of each of the light emitting unit groups passes through the center of the material placing unit and is perpendicular to the axial direction of the material placing unit; The plurality of light emitting units are used for emitting light signals towards the inside of the press along the direction of the heat press plate; The plurality of light receiving units are arranged on each photoelectric processing unit, and the light receiving unit is used for receiving the light signals emitted by the first light emitting unit symmetrically distributed with the light receiving unit.

10. The monitoring device of claim 9, wherein, The device comprises a plurality of observation groups, each of which comprises a first observation module and a second observation module, the first observation module comprises a first observation base and a first observation unit, the second observation module comprises a second observation base and a second observation unit, the first observation unit and the second observation unit are light-transmitting elements; A plurality of first observation bases are arranged on the third support unit, each of which is used for fixing the first observation unit and the light receiving unit, and the first observation unit is used for observing the running state of the press and the placement of the pressed material; A plurality of second observation bases are arranged on the fourth support unit, each of which is used for fixing the second observation unit and the light emitting unit, and the second observation unit is used for observing the running state of the press and the placement of the pressed material.

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