A temperature-controlled water-cooled hot pressing device and process

Abstract

The present invention relates to the technical field of hot press equipment, and discloses a temperature-controlled water-cooled hot press device and process, including a frame; a water tank for storing water source; a lower platen box for placing hot press parts; a balanced pressing assembly for controlling the contact flatness during the hot press process; a temperature control and cooling device for water-cooling or heat-insulating pressing of the hot press parts; an oil cylinder is connected to the frame, the output end of the oil cylinder is connected to the balanced pressing assembly, and the frame is connected to the water tank. This temperature-controlled water-cooled hot press device and process can achieve rapid water-cooling of the hot press parts through the provided temperature control and cooling device. The cooling water in the circulation process can not only cool the two platen boxes, but also conduct contact cooling on the workpiece. And under specific conditions, it can also keep the workpiece warm, ensuring various cooling and heating processes of the hot press parts. Compared with the prior art, it has higher process applicability to the hot press parts and better cooling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of hot press equipment, and particularly to a temperature-controlled water-cooled hot press device and process. Background Art

[0002] The veneer hot press is applicable to neutral furniture factories or small secondary processing (professional veneering) factories of wood-based panels. The hot press veneering machine, double-sided veneer hot press, and single-sided veneer hot press have the following characteristics: The hot press system has a fast heating rate. The heating system and heat conduction system are carefully designed in sections, with low heat consumption and uniform heat conduction; The mechanism is reasonably arranged, the processing precision of the accessories is high, the adjustment range of process parameters is wide, and the control process is reasonably designed, which can meet the process requirements of various veneering productions. It can be used for hot pressing and bonding furniture parts, building partitions, wooden doors, and various wood-based panels. The series of veneer presses are applicable to neutral furniture factories or small secondary processing (professional veneering) factories of wood-based panels, and are used for hot pressing and bonding furniture parts, building partitions, wooden doors, and various wood-based panels, such as plywood, blockboard, medium density fiberboard, particleboard, and pressing various decorative materials on the surface: decorative paper, decorative cloth, melamine fireproof board, metal foil, artificial and natural veneer, natural veneer parquet; It cannot be used for single-board drying and leveling, and the leveling and shaping of colored decorative wood chips.

[0003] In the existing veneer hot press, the cooling effect is poor, the cooling consumes a large amount of resources, the material after hot pressing cannot be cooled, which is easy to scald the operator, and when the hot press is working, sometimes it is necessary to keep the hot-pressed part warm for a period of time and then cool it. However, the existing hot press can only raise the temperature to a certain level and cannot achieve constant temperature control of the temperature. At the same time, some hot-pressed parts need to reduce the temperature to a certain value within a certain time, and the efficiency of natural cooling is too low to reach the temperature cooling within the specified time.

[0004] At the same time, when some workpieces are hot pressed, their surfaces may not be flat, resulting in inconsistent hot press contact surfaces, so there will be differences in the guiding temperature, ultimately affecting the quality of the hot-pressed workpieces. Therefore, a temperature-controlled water-cooled hot press device and process are proposed to solve the above-mentioned problems. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the existing technology, the present invention provides a temperature-controlled water-cooled hot press device and process, which solves the problems that in the existing technology, when hot pressing a hot-pressed part, it is impossible to control between cooling and heat preservation, resulting in slow workpiece forming and low efficiency; and the heat conduction uniformity of the hot press surface is relatively low during the hot pressing process.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solutions: a temperature-controlled water-cooled hot pressing device and process, including a frame; a water tank for storing water source; a lower pressing plate box for placing hot pressing parts; a balance pressing assembly for controlling the contact flatness during the hot pressing process; a temperature control and cooling device for water-cooling or heat-preserving pressing of the hot pressing parts; an oil cylinder is connected to the frame, the output end of the oil cylinder is connected to the balance pressing assembly, the frame is connected to the water tank, and the oil cylinder is installed on the frame.

[0009] Preferably, the balance pressing assembly includes a guide frame, a guide rod is slidably connected to the guide frame, a connecting spring is connected to the guide frame, one end of the connecting spring is connected to a connecting frame, a horizontal sliding plate and a vertical sliding plate are slidably connected inside the connecting frame, chutes are provided in the horizontal sliding plate and the vertical sliding plate, a horizontal pin shaft is slidably connected to the chute in the horizontal sliding plate, the horizontal pin shaft is connected to the connecting frame, a vertical sliding pin is slidably connected to the chute in the vertical sliding plate, the vertical sliding pin is installed inside the connecting frame, the bottom of the vertical sliding plate is connected with an adjusting ball, and an upper pressing plate box is slidably connected to the adjusting ball.

[0010] Preferably, a spherical chute is provided on the upper pressing plate box, there are two adjusting balls, and the two adjusting balls are slidably connected to the spherical chute, and the output end of the oil cylinder passes through the connecting frame and is connected with a pressing ball.

[0011] Preferably, the balance pressing assembly further includes a filling assembly;

[0012] The filling assembly includes a sliding toothed plate, a sliding rod is slidably connected inside the sliding toothed plate, one end of the sliding rod is connected to the guide frame, a rotating screw rod is threadedly connected inside the sliding toothed plate, one end of the rotating screw rod is connected to the guide frame, an intermediate gear is arranged below the sliding toothed plate, the intermediate gear is connected to the side surface of the water tank, a reverse toothed plate is meshed with the intermediate gear, the reverse toothed plate is connected with a sliding seat through a connecting plate, and the surface of the sliding seat is slidably connected inside the lower pressing plate box.

[0013] Preferably, a sealing groove is provided on the surface of the sliding seat, a sealing rubber strip is installed on the sealing groove, and the sealing rubber strip contacts the inner wall of the lower pressing plate box.

[0014] Preferably, the temperature control and cooling device includes a cooling device, a heating device and an adjusting device; the adjusting device adjusts the water inflow of the cooling device and the heating device;

[0015] The cooling device includes a semiconductor refrigerator. A cooling chamber is arranged in the water tank. The semiconductor refrigerator is arranged in the cooling chamber. A water pump is arranged in the cooling chamber. An outlet pipe and an upper pipe are installed on the water pump. One end of the outlet pipe is connected to the adjusting device. One end of the upper pipe communicates with the upper pressing plate box. A lower pipe communicates with the upper pressing plate box. One end of the lower pipe communicates with the cooling chamber in the water tank. A dividing box is arranged on the outer surface of the semiconductor refrigerator. Heat dissipation grooves are arranged on both sides of the dividing box.

[0016] Preferably, the heating device includes a heating pipe. A hot water chamber is further arranged in the water tank. The heating pipe is located inside the hot water chamber.

[0017] Preferably, the adjusting device includes a conduction box. An adjusting rod is rotatably connected to the conduction box. A rotating gear is connected to the adjusting rod. An upper tooth plate and a lower tooth plate are meshed with the rotating gear. The upper tooth plate and the lower tooth plate are connected with a baffle plate, and the baffle plate is located in front of the outlet pipe. The baffle plate is slidably connected inside the conduction box. The conduction box communicates with the lower pressing plate box through a water inlet pipe.

[0018] Two adjusting devices are provided, and the two adjusting devices are respectively arranged on the cooling device and the heating device.

[0019] Preferably, a rotating shaft is connected to the lower pressing plate box. A rotating frame is slidably connected to the rotating shaft. Scale lines are arranged on the rotating frame.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention provides a temperature-controlled water-cooled hot pressing device and process, which have the following beneficial effects:

[0022] 1. For the temperature-controlled water-cooled hot pressing device and process, the rapid water cooling of the hot-pressed part can be realized through the provided temperature control cooling device. The cooling water in the circulation process can not only cool the two pressing plate boxes, but also conduct contact cooling on the workpiece. And under specific conditions, the workpiece can also be kept warm, ensuring various cooling and heating processes of the hot-pressed part. Compared with the prior art, the process applicability to the hot-pressed part is higher, and the cooling efficiency is better.

[0023] 2. For the temperature-controlled water-cooled hot pressing device and process, the provided balanced pressing assembly can perform full-contact hot pressing on the workpieces on the inclined surface, without the situation of uneven stress due to uneven height or damage to the workpiece during hot pressing. While improving the hot pressing effect, the overall applicability of the equipment is further improved. Description of the drawings

[0024] Figure 1Schematic diagram of the overall structure of a temperature - controllable water - cooled hot - pressing device proposed by the present invention;

[0025] Figure 2 Schematic diagram of the structure of the balance pressing assembly of a temperature - controllable water - cooled hot - pressing device proposed by the present invention;

[0026] Figure 3 Schematic diagram of the temperature - control and cooling device of a temperature - controllable water - cooled hot - pressing device proposed by the present invention;

[0027] Figure 4 Schematic diagram of the heating device in the water tank of a temperature - controllable water - cooled hot - pressing device proposed by the present invention;

[0028] Figure 5 Schematic diagram of the structure of the adjusting device of a temperature - controllable water - cooled hot - pressing device proposed by the present invention;

[0029] Figure 6 Schematic diagram of the structure of the filling assembly of a temperature - controllable water - cooled hot - pressing device proposed by the present invention;

[0030] Figure 7 Schematic diagram of the structural connection of the rotating screw of a temperature - controllable water - cooled hot - pressing device proposed by the present invention.

[0031] In the figure: 1, frame; 2, water tank; 3, balance pressing assembly; 301, connecting frame; 302, guiding frame; 303, connecting spring; 304, horizontal sliding plate; 305, horizontal pin shaft; 306, pressing ball; 307, vertical sliding plate; 308, vertical sliding pin; 309, adjusting ball; 310, spherical sliding groove; 4, upper pressing plate box; 5, lower pressing plate box; 6, temperature - control and cooling device; 601, communicating box; 602, water inlet pipe; 603, semiconductor refrigerator; 604, dividing box; 605, heat dissipation groove; 606, water pump; 607, upper pipeline; 608, water outlet pipe; 609, heating pipe; 610, cooling cavity; 611, hot water cavity; 612, adjusting rod; 613, rotating gear; 614, upper toothed plate; 615, lower toothed plate; 616, baffle; 617, rotating frame; 618, rotating shaft; 619, lower pipeline; 620, conduction box; 7, guide rod; 8, oil cylinder; 9, filling assembly; 901, sliding toothed plate; 902, sliding rod; 903, rotating screw; 904, bracket; 905, reverse toothed plate; 906, intermediate gear; 907, sliding seat; 908, sealing strip; 909, pointer plate Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1-7 , a temperature-controllable water-cooled hot pressing device, including a frame 1; a water tank 2 for storing water source; an oil cylinder 8 is connected to the frame 1, and the output end of the oil cylinder 8 is connected to a balance pressing assembly 3. The frame 1 is connected to the water tank 2, and the oil cylinder 8 is installed on the frame 1. A lower platen box 5 for placing hot pressing parts;

[0034] In this embodiment, please refer to Figure 2 , a balance pressing assembly 3 for controlling the contact flatness during the hot pressing process;

[0035] The balance pressing assembly 3 includes a guide frame 302. A guide rod 7 is slidably connected to the guide frame 302. A connecting spring 303 is connected to the guide frame 302. One end of the connecting spring 303 is connected to a connecting frame 301. The downward movement of the connecting frame 301 is driven by the elastic connection of the connecting spring 303. A transverse slide plate 304 and a vertical slide plate 307 are slidably connected inside the connecting frame 301. Chutes are formed in the transverse slide plate 304 and the vertical slide plate 307. A transverse pin shaft 305 is slidably connected to the chute in the transverse slide plate 304, and the transverse pin shaft 305 is connected to the connecting frame 301. A vertical slide pin 308 is slidably connected to the chute in the vertical slide plate 307, and the vertical slide pin 308 is installed inside the connecting frame 301. When the lower platen box 5 contacts the upper surface of the hot pressing part, if it is in a flat state, at this time the lower platen box 5 will also tend to be in a flat state and contact the upper surface of the workpiece. If it is an inclined surface, at this time the lower platen box 5 will also present an inclined state and contact the upper surface of the workpiece. And the adjusting ball 309 will rotate in the spherical chute 310 to provide inclined accommodation. When one side is high, at this time the vertical slide plate 307 on that side will slide upward, so that the two vertical slide plates 307 have different heights. And the vertical slide plate 307 is in a sliding state with the transverse slide plate 304. So at this time, when moving vertically, it will drive the transverse slide plate 304 to move horizontally, squeezing the other vertical slide plate 307 to move downward, and finally keeping the upper platen box 4 in full contact with the upper surface of the workpiece, which can not only ensure the uniformity of heating during the energization process, but also ensure the reduction of damage to the workpiece during the pressing process. The bottom of the vertical slide plate 307 is connected with an adjusting ball 309, and an upper platen box 4 is slidably connected to the adjusting ball 309. The function of the adjusting ball 309 is to provide the freedom of inclination movement for the upper platen box 4, because when the platen box 4 is inclined, the spherical structure can ensure that it has a certain degree of rotational freedom.

[0036] Further, please refer to Figure 2 , a spherical chute 310 is formed on the upper platen box 4. There are two adjusting balls 309, and the two adjusting balls 309 are slidably connected to the spherical chute 310. The output end of the oil cylinder 8 passes through the connecting frame 301 and is connected with a pressing ball 306. The function of the pressing ball 306 is that when the oil cylinder 8 performs pressing, its output shaft will also drive the pressing ball 306 to press down and act on the upper platen box 4, so as to prevent the upper platen box 4 from generating arch deformation after being heated, resulting in a reduction in the contact surface with the workpiece. If the angle of the inclined surface is too large, the upper platen box 4 will slide and tilt on the adjusting ball 309 to increase its inclination, and the spherical structure can hold the entire upper platen box 4.

[0037] Furthermore, the balanced pressing assembly 3 further includes a filling assembly 9;

[0038] Please refer to Figure 6 , the filling assembly 9 includes a sliding toothed plate 901. A slide bar 902 is slidably connected inside the sliding toothed plate 901. One end of the slide bar 902 is connected to the guide frame 302. A rotating screw 903 is threadedly connected inside the sliding toothed plate 901. One end of the rotating screw 903 is connected to the guide frame 302. Considering that the distance of the downward movement of the oil cylinder 8 is different due to the different thicknesses of the workpieces, a rotating frame 617 is provided. When the operator places the workpiece on the processing surface, the rotation of the rotating frame 617 can be controlled at this time to make it contact with the upper surface of the workpiece. Then, with the gravity, the rotating frame 617 will slide down. The operator can determine the thickness of the hot-pressed part according to the scale line set on the rotating frame 617. Then, rotate the rotating frame 617 to make it return to its original position. When the thickness value is obtained, the rotating screw 903 can be rotated at this time. Please refer to Figure 7, by virtue of the threaded connection, the height of the sliding tooth plate 901 will be driven, thereby enabling the adjustment of the length of the sliding tooth plate 901 in contact with and meshing with the intermediate gear 906 when it moves downward with the oil cylinder 8. Furthermore, for workpieces of different thicknesses, the perfect filling of the sliding seat 907 can be achieved without pores, preventing the lower platen box 5 from being pressed and deformed. There is an intermediate gear 906 below the sliding tooth plate 901. The intermediate gear 906 is connected to the side of the water tank 2. A reverse tooth plate 905 is meshed with the intermediate gear 906. The reverse tooth plate 905 is connected to the sliding seat 907 through a connecting plate. The surface of the sliding seat 907 is slidably connected inside the lower platen box 5. When the oil cylinder 8 continues to press down, it drives the guide frame 302 to press down, and at the same time forms a squeezing state on the connecting spring 303. After that, when the guide frame 302 presses down, it will drive the sliding tooth plate 901 to move downward. During the downward movement, it will mesh and rotate with the intermediate gear 906, and the rotation of the intermediate gear 906 will drive the reverse tooth plate 905 to move upward. The reverse tooth plate 905 will drive the sliding seat 907 to move upward to fill the entire lower platen box 5. The main reason for setting this device is to consider that if the lower platen box 5 is set to be hollow, when the oil cylinder 8 presses down and the upper platen box 4 presses on the workpiece, and the workpiece then acts on the lower platen box 5, the bearing capacity in the hollow state is insufficient, resulting in its easy deformation. Therefore, this device is set.

[0039] In addition, please refer to Figure 6 , a sealing groove is provided on the surface of the sliding seat 907, and a sealing rubber strip 908 is installed on the sealing groove. The sealing rubber strip 908 contacts the inner wall of the lower platen box 5. Because there is the flow of cooling water inside, it is necessary to set the sealing rubber strip 908 to seal the inside to ensure that the cooling water will not leak out.

[0040] In addition, the temperature control cooling device 6 is used for water cooling or heat preservation pressing of the hot-pressed parts;

[0041] The temperature control cooling device 6 includes a cooling device, a heating device, and an adjusting device; the adjusting device adjusts the water inflow of the cooling device and the heating device;

[0042] Please refer to Figure 3 Figure 5, the cooling device includes a semiconductor refrigeration device 603. A semiconductor refrigeration device refers to a device that uses the thermoelectric effect of semiconductors to produce cooling capacity, also known as a thermoelectric refrigerator. Connect two different metals with a conductor and connect direct current, then the temperature at one contact point decreases and the temperature at the other contact point increases. The semiconductor refrigeration device has the characteristics of no noise, no vibration, no need for refrigerant, small volume, light weight, etc., and is reliable in operation, simple to operate, and easy to adjust the cooling capacity. A cooling cavity 610 is provided in the water tank 2, the semiconductor refrigeration device 603 is arranged in the cooling cavity 610, a water pump 606 is arranged in the cooling cavity 610, and a water outlet pipe 608 and an upper pipe 607 are installed on the water pump 606. The water pump 606 will inject the cooling water in the cooling cavity 610 into the interior of the connection box 601 from the position of the water outlet pipe 608, and then inject it into the interior of the lower platen box 5 through the water inlet pipe 602. The upper platen box 4 is injected through two upper pipes 607. At this time, after the cooling water fills the two platen boxes, it will flow back into the interior of the water tank 2 through the pipeline, and then the water in the high-temperature state inside will be cooled by the semiconductor refrigeration device 603 and then transported to the two platen boxes through the pipeline. At this time, the two platen boxes are in contact with the surface of the workpiece, and the cold quantity will be conducted to the surface of the workpiece, so as to carry out high-speed water-cooled reflux cooling. One end of the water outlet pipe 608 is connected to the adjustment device, one end of the upper pipe 607 is communicated with the upper platen box 4, a lower pipe 619 is communicated with the upper platen box 4, and one end of the lower pipe 619 is communicated with the cooling cavity 610 in the water tank 2. A partition box 604 is arranged on the outer surface of the semiconductor refrigeration device 603, and heat dissipation grooves 605 are arranged on both sides of the partition box 604. The function of the partition box 604 is to cover and protect the semiconductor refrigeration device 603, and the heat generated by the semiconductor refrigeration device 603 will be discharged from the heat dissipation grooves 605 on both sides.

[0043] It should be noted that, please refer to Figure 3-Figure 4 , the heating device includes a heating pipe 609. A hot water cavity 611 is also provided in the water tank 2, and the heating pipe 609 is located inside the hot water cavity 611. Open the adjustment device of the heating device, and the principle is the same as that of the cooling device. At this time, the heating pipe 609 heats the water source inside, and the heated high-temperature water flow is injected into the interior of the two platen boxes by the water pump 606 for contact heat preservation. After a specified time, turn off the water pump 606 of the heating device, then turn on the water pump 606 of the cooling device, and then carry out rapid cooling. After the cooling is completed, the oil cylinder 8 contracts and returns, separating the upper platen box 4 from the workpiece, and then the operator takes out the workpiece. Thus, various different processes of the workpiece can be realized for heat preservation cooling and rapid cooling.

[0044] Furthermore, please refer to Figure 5, The adjusting device includes a conduction box 620. A regulating rod 612 is rotatably connected to the conduction box 620. A rotating gear 613 is connected to the regulating rod 612. An upper toothed plate 614 and a lower toothed plate 615 are meshed with the rotating gear 613. A baffle 616 is connected to the upper toothed plate 614 and the lower toothed plate 615, and the baffle 616 is located in the front of the water outlet pipe 608. The baffle 616 is slidably connected to the inside of the conduction box 620. The conduction box 620 is connected to the lower pressing plate box 5 through a water inlet pipe 602. The operator rotates the regulating rod 612 on the cooling device. The rotation of the regulating rod 612 will drive the rotation of the rotating gear 613. Using the reverse meshing principle of the upper and lower toothed plates, the two baffles 616 are driven to move relative to each other, thereby opening the pipeline of the water outlet pipe 608. The operator can control the number of turns of its rotation according to the actual situation, so as to select how many cooling pipelines to open. Considering the cooling rate, the control of multiple pipelines is set. If a faster cooling rate is desired, a small number of pipelines need to be controlled to be opened, because at this time the flow rate of the internal cooling water is faster, and the injected cooling water will also be faster. After the sequential rate becomes faster, the speed of taking away heat will also be faster.

[0045] Furthermore, please refer to Figure 5 , Two adjusting devices are provided, and the two adjusting devices are respectively arranged on the cooling device and the heating device, and the two adjusting devices respectively control the opening or closing of the cooling device and the heating device. A rotating shaft 618 is connected to the lower pressing plate box 5. A rotating frame 617 is slidably connected to the rotating shaft 618. Scale lines are provided on the rotating frame 617. When the operator places the workpiece on the processing surface, at this time, the rotation of the rotating frame 617 can be controlled to make it contact the upper surface of the workpiece. Then, with the gravity, the rotating frame 617 will slide down. The operator can determine the thickness of the hot-pressed part according to the scale lines provided on the rotating frame 617.

[0046] Embodiment 2

[0047] A temperature-controlled water-cooled hot pressing process includes the following steps;

[0048] Step S1: Workpiece placement; The operator places the hot-pressed part on the lower pressing plate box 5; At this time, the lower pressing plate box 5 mainly plays the role of carrying the workpiece, and the inside of the lower pressing plate box 5 is in a hollow state.

[0049] Step S2: Contact balance; controlling the downward pressure of the oil cylinder 8 will drive the downward movement of the connecting frame 301 through the elastic connection of the connecting spring 303 and drive the upper platen box 4 to contact the hot-pressed workpiece by the two vertical sliding plates 307; the lower platen box 5 will also tend to be in a flat state and contact the upper surface of the workpiece. If it is an inclined surface, the lower platen box 5 will also be in an inclined state and contact the upper surface of the workpiece at this time. This step is mainly to deal with workpieces with some inclined structures. Because in the prior art, most of them are straight-pressure structures. If the workpiece is not flat during pressing, it will cause damage to the workpiece, or reduce the contact surface for pressing, and reduce the heat conduction and hot-pressing efficiency.

[0050] If there is an inclined surface on the upper surface of the hot-pressed part, when the oil cylinder 8 presses downward, the two vertical sliding plates 307 will slide up and down, showing different heights, so that the upper platen box 4 is in an inclined state and fully contacts the upper surface of the hot-pressed part; when ensuring full contact, its heat conduction efficiency can be greatly improved, and it can play a certain protective effect on the workpiece.

[0051] If the upper surface of the hot-pressed part is a parallel surface, as the oil cylinder 8 presses downward, the transverse sliding plate 304 provides a two-way force on the left and right vertical sliding plates 307 to tend to balance. At this time, the two vertical sliding plates 307 are at the same height, and the upper platen box 4 is hot-pressed in a horizontal state; by combining the two forms, the process can be used for general applications of some specific structures and ordinary structures, and ultimately improve the versatility of the equipment.

[0052] Step S3: Pressing and filling; as the oil cylinder 8 continues to press downward, it will drive the continuous downward movement of the guide frame 302, and then drive the sliding tooth plate 901 to move downward and mesh with the intermediate gear 906, and drive the reverse tooth plate 905 to move upward, and then drive the sliding seat 907 to move upward and fill inside the lower platen box 5; because it is considered that the lower platen box 5 in a hollow state has insufficient bearing capacity and is prone to deformation, so this device is set up to fill the internal cavity to ensure the stability of the pressing process, and also make the lower platen box 5 not easily deformed to achieve the perfect filling of the sliding seat 907, and there will be no pores, resulting in the situation of the lower platen box 5 being deformed during pressing.

[0053] Step S4: Electric heating and pressing;

[0054] Step S5: Return stroke;

[0055] Control the return stroke of the oil cylinder 8 so that it returns a certain distance. Using the meshing of the sliding tooth plate 901 during the return stroke with the intermediate gear 906, it will drive the sliding seat 907 to move downward, making the inside of the lower platen box 5 in a cavity state; the purpose of the return stroke is to open the internal cooling cavity of the lower platen box 5 so that water cooling and temperature control cooling can be carried out inside the lower platen box 5.

[0056] Step S5: Heat preservation or cooling;

[0057] When the workpiece needs to be rapidly cooled, the control regulating device needs to be controlled to open the pipeline channel of the cooling device, and the cooling water inside the semiconductor cooler 603 is used for cooling. The water pump 606 will control the cooling water to be ingested into the inner cavities of the lower platen box 5 and the upper platen box 4 from the positions of the water outlet pipe 608 and the upper pipeline 607 to achieve contact cooling, and the cooling water flows back to the cooling cavity 610 through the pipeline;

[0058] When the workpiece needs to be kept at a constant temperature for heat preservation, at this time, the regulating device on the heating device is controlled to be opened, and the water source inside the hot water cavity 611 is heated through the internal heating pipe 609, and then enters the inner cavities of the lower platen box 5 and the upper platen box 4 through the same pipeline of the cooling device to perform heating and heat preservation on it, and then contact with the hot pressing part to perform constant temperature heat preservation;

[0059] Step S6: Reset; The oil cylinder 8 continues to move upward to drive the upper platen box 4 to separate from the surface of the hot pressing part, and the operator takes out the workpiece after hot pressing.

[0060] All the electrical components appearing in this text are electrically connected to the external main controller and the 220V mains power supply, and the main controller can be a conventional known device such as a computer that plays a control role.

[0061] Working principle: First, the operator places the workpiece to be hot-pressed on the lower platen box 5. Then, the oil cylinder 8 is controlled to press down. During the pressing-down process, the elastic connection of the connecting spring 303 drives the connecting frame 301 to move downward. When the lower platen box 5 contacts the upper surface of the hot-pressed part, if it is in a flat state, at this time, the lower platen box 5 will also tend to be in a flat state and contact the upper surface of the workpiece. If it is an inclined surface, at this time, the lower platen box 5 will also present an inclined state and contact the upper surface of the workpiece. The adjusting ball 309 will rotate in the spherical chute 310 to provide inclined yielding. When one side is higher, at this time, the vertical slide plate 307 on that side will slide upward, making the two vertical slide plates 307 have different heights. And the vertical slide plate 307 is in a sliding state with the horizontal slide plate 304. So at this time, when moving vertically, it will drive the horizontal slide plate 304 to move horizontally, squeezing the vertical slide plate 307 on the other side to move downward. However, finally, both sides of the two vertical slide plates 307 and the horizontal slide plate 304 must be in a contact state because when the oil cylinder 8 presses down, the pressures on both sides should be basically the same. The vertically arranged slide pins 308 and horizontally arranged slide pins 305 inside are used to limit the internal sliding positions and ensure that the vertical slide plate 307 will not directly fall due to the influence of gravity. At this time, the downward movement state of the oil cylinder 8 is mainly to contact the workpiece for leveling. Then, when the oil cylinder 8 continues to press down, it will drive the output shaft of the oil cylinder 8 to slide inside the connecting frame 301 and drive the guide frame 302 to press down, simultaneously forming a squeezing state on the connecting spring 303. Then, when the guide frame 302 presses down, it will drive the sliding tooth plate 901 to move downward. During the downward movement, it will engage and rotate with the intermediate gear 906. The rotation of the intermediate gear 906 will drive the reverse tooth plate 905 to move upward, and the reverse tooth plate 905 will drive the sliding seat 907 to move upward to fill the entire lower platen box 5. The reason for setting this device is mainly considered that if the lower platen box 5 is set to be in a hollow state, when the oil cylinder 8 presses down and the upper platen box 4 presses and acts on the workpiece, and the workpiece then acts on the lower platen box 5, at this time, the bearing capacity in the hollow state is insufficient, resulting in easy deformation. Therefore, this device is set to fill the internal cavity to ensure the stability of the pressing process and also make the lower platen box 5 not easily deformed.By considering that the distance the oil cylinder 8 moves downward is different due to the different thicknesses of the workpieces, the rotating frame 617 is set. When the operator places the workpiece on the processing surface, the rotation of the rotating frame 617 can be controlled at this time to make it contact the upper surface of the workpiece. Then, due to gravity, the rotating frame 617 will slide down. The operator can determine the thickness of the hot-pressed part according to the scale line set on the rotating frame 617. Then, rotate the rotating frame 617 to make it return to its original position. When the thickness value is obtained, the rotating screw 903 can be rotated at this time. Due to the threaded connection relationship, the height of the sliding tooth plate 901 will be driven, so that the length of the contact and engagement between the sliding tooth plate 901 and the intermediate gear 906 when the sliding tooth plate 901 moves downward with the oil cylinder 8 can be adjusted. Furthermore, for workpieces of different thicknesses, the perfect filling of the sliding seat 907 can be achieved, and there will be no pores, resulting in the pressing deformation of the lower platen box 5. The operator can directly visually check the distance between the sliding tooth plate 901 and the reverse tooth plate 905 according to the bracket 904 and the pointer plate 909 installed on the reverse tooth plate 905, so as to facilitate its adjustment. The ultimate goal is still to improve the service life of the lower platen box 5 in the hollow state. After the power-on hot pressing, the oil cylinder 8 needs to return a certain distance, and this distance is the compression length of the connecting spring 303, so that the upper platen box 4 and the lower platen box 5 still contact the surface of the hot-pressed part. After the oil cylinder 8 moves upward, the sliding tooth plate 901 will be driven to move upward, and then the reset of the sliding seat 907 can be realized, and the cavity of the lower platen box 5 will be revealed. Because the acting force of the oil cylinder 8 no longer exists at this time and only bears the gravity of the hot-pressed part, it will not cause damage to its hollow state. Then, the operator can choose rapid cooling or heat preservation cooling according to different hot-pressing processes of the hot-pressed parts. If rapid cooling is required, the operator needs to rotate the adjusting rod 612 on the cooling device. The rotation of the adjusting rod 612 will drive the rotation of the rotating gear 613. Using the reverse meshing principle of the upper and lower tooth plates, the relative movement of the two baffles 616 will be driven, so as to open the pipeline of the water outlet pipe 608. The operator can control the number of turns of its rotation according to the actual situation, so as to choose to open several cooling pipelines. Then, the water pump 606 will inject the cooling water in the cooling cavity 610 into the inside of the communication box 601 from the position of the water outlet pipe 608, and then inject it into the inside of the lower platen box 5 through the water inlet pipe 602. The upper platen box 4 is injected through the two upper pipelines 607. At this time, after the cooling water fills the two platen boxes, it will flow back to the inside of the water tank 2 through the pipeline, and then the water in the high-temperature state inside will be cooled by the semiconductor cooler 603 and then transported to the two platen boxes through the pipeline. At this time, the two platen boxes are in contact with the surface of the workpiece, and the cold quantity will be conducted to the surface of the workpiece, so as to carry out high-speed water-cooled reflux cooling.If the workpiece needs to be kept warm for a period of time before cooling, the cooling device can be turned off at this time, and the regulating device of the heating device can be turned on. The principle is the same as that of the cooling device. At this time, the heating pipe 609 heats the water source inside. The heated high-temperature water flow is injected into the interior of the two pressing plate boxes by the water pump 606 for contact heat preservation. After reaching the specified time, the water pump 606 of the heating device is turned off, and then the water pump 606 of the cooling device is turned on to carry out rapid cooling. After the cooling is completed, the oil cylinder 8 contracts and returns, separating the upper pressing plate box 4 from the workpiece, and then the operator takes out the workpiece.

[0062] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A temperature-controllable water-cooled hot pressing device, characterized in that, Comprising: A frame (1); A water tank (2) for storing a water source; A lower pressing plate box (5) for placing hot pressing parts; A balanced pressing assembly (3) for controlling the contact flatness during the hot pressing process; A temperature control and cooling device (6) for water-cooling or heat-preserving pressing of the hot pressing parts; An oil cylinder (8) is connected to the frame (1), the output end of the oil cylinder (8) is connected to the balanced pressing assembly (3), the frame (1) is connected to the water tank (2), and the oil cylinder (8) is installed on the frame (1); The balanced pressing assembly (3) includes a guiding frame (302), a guide rod (7) is slidably connected to the guiding frame (302), a connecting spring (303) is connected to the guiding frame (302), one end of the connecting spring (303) is connected to a connecting frame (301), a transverse sliding plate (304) and a vertical sliding plate (307) are slidably connected inside the connecting frame (301), chutes are formed in the transverse sliding plate (304) and the vertical sliding plate (307), a transverse pin shaft (305) is slidably connected to the chute in the transverse sliding plate (304), the transverse pin shaft (305) is connected to the connecting frame (301), a vertical sliding pin (308) is slidably connected to the chute in the vertical sliding plate (307), the vertical sliding pin (308) is installed inside the connecting frame (301), the bottom of the vertical sliding plate (307) is connected to an adjusting ball (309), and an upper pressing plate box (4) is slidably connected to the adjusting ball (309); A spherical chute (310) is formed in the upper pressing plate box (4), two adjusting balls (309) are provided, and the two adjusting balls (309) are slidably connected to the spherical chute (310), and the output end of the oil cylinder (8) passes through the connecting frame (301) and is connected to a pressing ball (306); The balanced pressing assembly (3) further includes a filling assembly (9); The filling assembly (9) includes a sliding toothed plate (901), a sliding rod (902) is slidably connected inside the sliding toothed plate (901), one end of the sliding rod (902) is connected to the guiding frame (302), a rotating screw rod (903) is threadedly connected inside the sliding toothed plate (901), one end of the rotating screw rod (903) is connected to the guiding frame (302), an intermediate gear (906) is arranged below the sliding toothed plate (901), the intermediate gear (906) is connected to the side surface of the water tank (2), a reverse toothed plate (905) is meshed with the intermediate gear (906), the reverse toothed plate (905) is connected to a sliding seat (907) through a connecting plate, and the surface of the sliding seat (907) is slidably connected inside the lower pressing plate box (5).

2. The temperature-controlled water-cooled hot pressing device according to claim 1, characterized in that: A sealing groove is formed on the surface of the sliding seat (907), and a sealing rubber strip (908) is installed on the sealing groove, and the sealing rubber strip (908) contacts the inner wall of the lower pressing plate box (5).

3. A temperature-controllable water-cooled hot pressing device according to claim 2, characterized in that: The temperature control and cooling device (6) includes a cooling device, a heating device and an adjusting device; the adjusting device adjusts the water inflow of the cooling device and the heating device; The cooling device includes a semiconductor refrigeration device (603). A cooling cavity (610) is arranged in the water tank (2). The semiconductor refrigeration device (603) is arranged in the cooling cavity (610). A water pump (606) is arranged in the cooling cavity (610). An outlet pipe (608) and an upper pipe (607) are installed on the water pump (606). One end of the outlet pipe (608) is connected to the adjusting device. One end of the upper pipe (607) communicates with the upper pressing plate box (4). A lower pipe (619) communicates with the upper pressing plate box (4). One end of the lower pipe (619) communicates with the cooling cavity (610) in the water tank (2). A dividing box (604) is arranged on the outer surface of the semiconductor refrigeration device (603). Heat dissipation grooves (605) are arranged on both sides of the dividing box (604).

4. A temperature-controllable water-cooled hot pressing device according to claim 3, characterized in that: The heating device includes a heating pipe (609). A hot water cavity (611) is further arranged in the water tank (2). The heating pipe (609) is located inside the hot water cavity (611).

5. A temperature-controllable water-cooled hot pressing device according to claim 4, characterized in that: The adjusting device includes a conduction box (620). An adjusting rod (612) is rotatably connected to the conduction box (620). A rotating gear (613) is connected to the adjusting rod (612). An upper tooth plate (614) and a lower tooth plate (615) are engaged with the rotating gear (613). A baffle (616) is connected to the upper tooth plate (614) and the lower tooth plate (615), and the baffle (616) is located in front of the outlet pipe (608). The baffle (616) is slidably connected to the inside of the conduction box (620). The conduction box (620) communicates with the lower pressing plate box (5) through a water inlet pipe (602). There are two adjusting devices, and the two adjusting devices are respectively arranged on the cooling device and the heating device.

6. The temperature-controllable water-cooled hot pressing device according to claim 5, wherein: A rotating shaft (618) is connected to the lower pressing plate box (5). A rotating frame (617) is slidably connected to the rotating shaft (618). Scale lines are arranged on the rotating frame (617).

7. A temperature-controlled water-cooled hot pressing process, characterized in that: A temperature-controlled water-cooled hot pressing device as described in claim 6 further includes the following steps; Step S1: Workpiece placement; The hot pressing part is placed on the lower pressing plate box (5) by an operator or a manipulator. Step S2: Contact balance; Controlling the downward pressure of the oil cylinder (8) will drive the downward movement of the connecting frame (301) through the elastic connection of the connecting spring (303), and drive the upper pressing plate box (4) to contact the hot pressing workpiece by two vertical sliding plates (307). If there is an inclined surface on the upper surface of the hot pressing part, when the oil cylinder (8) presses downward, the two vertical sliding plates (307) will slide up and down and present at different heights, so that the upper pressing plate box (4) is inclined to fully contact the upper surface of the hot pressing part. If the upper surface of the hot pressing part is a parallel surface, as the oil cylinder (8) presses downward, the transverse sliding plate (304) provides a two-way force for the two vertical sliding plates (307) on the left and right to tend to be balanced. At this time, the two vertical sliding plates (307) are at the same height, and the upper pressing plate box (4) is in a horizontal state for hot pressing. Step S3: Press down for filling; as the oil cylinder (8) continues to press down, it will drive the guide frame (302) to move downward continuously, and then drive the sliding tooth plate (901) to move downward and mesh with the intermediate gear (906), and drive the reverse tooth plate (905) to move upward, and then drive the sliding seat (907) to move upward and fill inside the lower platen box (5); Step S4: Electrify for hot pressing; Step S5: Return stroke; Control the return stroke of the oil cylinder (8) to make it return a certain distance. Using the meshing of the sliding tooth plate (901) during the return stroke with the intermediate gear (906), it will drive the sliding seat (907) to move downward, making the inside of the lower platen box (5) in a cavity state; Step S5: Keep warm and cool or directly cool; Step S6: Reset; the oil cylinder (8) continues to move upward to drive the upper platen box (4) away from the surface of the hot-pressed part, and the operator takes out the hot-pressed workpiece.

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