Continuous vacuum pressing equipment

Abstract

The invention relates to the technical field of vacuum pressing equipment, and discloses continuous vacuum pressing equipment which comprises a coil stock feeding mechanism, a vacuum pressing mechanism and a coil stock discharging mechanism which are sequentially connected in series. Wherein the vacuum pressing mechanism comprises an upper pressing plate, a lower pressing plate and a pressing driving mechanism for driving the upper pressing plate and the lower pressing plate to be pressed, an air bag is arranged on the lower surface of the upper pressing plate or the upper surface of the lower pressing plate, vacuum sealing rings are arranged on the lower surface of the upper pressing plate and the upper surface of the lower pressing plate, and the air bag is arranged on the inner sides of the vacuum sealing rings. And when the upper pressing plate is pressed on the lower pressing plate, the two vacuum sealing rings are aligned. The two ends, in the length direction of the product, of the product contact face of the air bag are each provided with an extension part, and the extension parts are flush with the product contact face. The section of the vacuum sealing ring is in a transverse V shape, and one side, facing a product, of the vacuum sealing ring is provided with a horizontal crimping surface. According to the equipment, wrinkles and indentations of products can be avoided, and the yield of the products is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum laminating equipment, and particularly relates to a continuous vacuum laminating equipment. Background Art

[0002] In the production processes of products such as circuit boards, flexible circuit boards, and lithium battery electrodes, it is often necessary to perform hot lamination on the products. At the same time, in order to avoid oxidation of the products during the hot lamination process, it is often necessary to perform vacuum hot lamination on the products. Existing vacuum laminating equipment is mostly used for vacuum hot lamination processing of sheet-shaped products, and the production efficiency is relatively slow. In order to improve the production efficiency, some equipment adopts a roll-to-roll production method, but the vacuum laminating mechanism has not been improved for continuous products, which may leave indentations on the products during the lamination process and cause the products to wrinkle, thereby reducing the yield of the products. For this reason, it is necessary to design a new continuous vacuum laminating equipment that can solve the above technical problems. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a continuous vacuum laminating equipment, which can avoid leaving indentations on continuous products, and at the same time avoid the products from wrinkling, and improve the yield of the products.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A continuous vacuum laminating equipment includes a roll feeding mechanism, a vacuum laminating mechanism, and a roll discharging mechanism connected in series in sequence. The roll feeding mechanism is used to unwind the product to be laminated and send it into the vacuum laminating mechanism. The vacuum laminating mechanism is used to perform vacuum lamination on the fed product. The roll discharging mechanism is used to wind up the laminated product into a roll. The vacuum laminating mechanism includes an upper pressing plate, a lower pressing plate, and a lamination driving mechanism for driving the upper pressing plate and the lower pressing plate to laminate. An airbag is provided on the lower surface of the upper pressing plate or the upper surface of the lower pressing plate. Vacuum sealing rings are provided on both the lower surface of the upper pressing plate and the upper surface of the lower pressing plate. The airbag is arranged inside the vacuum sealing rings. An inflation passage for inflating the airbag and an exhaust passage for exhausting the airbag are provided on the upper pressing plate or the lower pressing plate. When the upper pressing plate is laminated on the lower pressing plate, the vacuum sealing ring of the upper pressing plate is aligned with the vacuum sealing ring of the lower pressing plate. Extension parts are provided at both ends of the product contact surface of the airbag in the length direction of the product, and the extension parts are flush with the product contact surface. The cross-section of the vacuum sealing ring is a horizontally placed V shape, and a horizontal pressing surface is provided on the side of the vacuum sealing ring facing the product.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: During the inflation process of the airbag, since the extension parts at both ends of the airbag can contact the product and press the connection part of the product inside and outside the vacuum pressing mechanism, it can avoid the lateral extrusion force exerted on the product during the inflation of the airbag from causing wrinkles at the connection part of the product. At the same time, since the side of the vacuum sealing ring facing the product has a horizontal crimping surface, compared with the traditional sealing ring with a circular cross-section, it can increase the contact area between the vacuum sealing ring and the product, thereby avoiding the vacuum sealing ring leaving indentations on the product during the pressing process. And because the cross-section of the vacuum sealing ring is a horizontally placed V shape, the vacuum sealing ring has a certain deformation ability in the longitudinal direction, so as to avoid excessive pressure between the crimping surface and the product surface during the pressing process, and further avoid the vacuum sealing ring leaving indentations on the product. This continuous vacuum pressing equipment can improve the yield rate of products while ensuring production efficiency.

[0006] In the above-mentioned continuous vacuum pressing equipment, an installation groove for embedding and installing the airbag is provided on the lower surface of the upper pressing plate or the upper surface of the lower pressing plate, and avoiding grooves for avoiding the extension parts are provided at both ends in the length direction of the installation groove.

[0007] In the above-mentioned continuous vacuum pressing equipment, a pair of gaskets are provided on the lower surface of the upper pressing plate or the upper surface of the lower pressing plate, and the two gaskets are respectively arranged on both sides in the width direction of the upper pressing plate or the lower pressing plate. The gaskets are used to make a certain gap between the lower surface of the upper pressing plate and the upper surface of the lower pressing plate when the upper pressing plate is pressed on the lower pressing plate.

[0008] In the above-mentioned continuous vacuum pressing equipment, an upper heating plate is provided above the upper pressing plate, a lower heating plate is provided below the lower pressing plate, cooling mechanisms are provided at the inlets of the upper pressing plate and the lower pressing plate, heat insulation structures are provided at the inlets of the upper heating plate and the lower heating plate, the heat insulation structures divide the upper heating plate and the lower heating plate into a cooling area and a heating area, the cooling area of the upper heating plate is arranged above the cooling mechanism of the upper pressing plate, and the cooling area of the lower heating plate is arranged below the cooling mechanism of the lower pressing plate.

[0009] In the above-mentioned continuous vacuum pressing equipment, the cooling mechanism is a cooling channel for flowing a cooling medium.

[0010] In the above-mentioned continuous vacuum pressing equipment, the heat insulation mechanism is a heat insulation groove arranged on the upper heating plate and the lower heating plate along the width direction of the product.

[0011] The above-mentioned continuous vacuum laminating equipment, the coil feeding mechanism thereof includes a product unwinding shaft, a release film recovery shaft, an upper protective film unwinding shaft, a lower protective film unwinding shaft, an upper protective auxiliary material unwinding shaft and a lower protective auxiliary material unwinding shaft which are rotatably arranged on the frame, as well as a feeding section difference mechanism and a pulling-back mechanism. The release film recovery shaft can be rotated under the drive of a drive mechanism. The release film recovery shaft is arranged on one side of the product unwinding shaft. The release film recovery shaft is used for recovering the release film on the surface of the product. The feeding section difference mechanism is used for adjusting the tension of the product. The upper protective film unwinding shaft and the upper protective auxiliary material unwinding shaft are arranged above the pulling-back mechanism. The lower protective film unwinding shaft and the lower protective auxiliary material unwinding shaft are arranged below the pulling-back mechanism. The product unwinding shaft is used for unwinding the product to be laminated. The upper protective film unwinding shaft and the upper protective auxiliary material unwinding shaft are respectively used for unwinding the upper protective film and the upper protective auxiliary material. The lower protective film unwinding shaft and the lower protective auxiliary material unwinding shaft are respectively used for unwinding the lower protective film and the lower protective auxiliary material. The product unwound from the product unwinding shaft sequentially passes through the feeding section difference mechanism and the pulling-back mechanism and enters the vacuum laminating mechanism. The pulling-back mechanism is used for pulling back the product to make the product in the vacuum laminating mechanism tense.

[0012] The above-mentioned continuous vacuum laminating equipment, the coil discharging mechanism thereof includes a product winding shaft, an upper protective film winding shaft, a lower protective film winding shaft, an upper protective auxiliary material winding shaft and a lower protective auxiliary material winding shaft which are rotatably arranged on the frame, as well as a discharging section difference mechanism and a pulling mechanism. The product winding shaft, the upper protective film winding shaft, the lower protective film winding shaft, the upper protective auxiliary material winding shaft and the lower protective auxiliary material winding shaft can all be rotated under the drive of a drive mechanism. The upper protective film winding shaft and the upper protective auxiliary material winding shaft are arranged on the upper side of the pulling mechanism. The lower protective film winding shaft and the lower protective auxiliary material winding shaft are arranged on the lower side of the pulling mechanism. The product winding shaft is used for winding the laminated product into a roll. The upper protective film winding shaft and the upper protective auxiliary material winding shaft are respectively used for winding the upper protective film and the upper protective auxiliary material into rolls. The lower protective film winding shaft and the lower protective auxiliary material winding shaft are respectively used for winding the lower protective film and the lower protective auxiliary material into rolls. After the product is laminated by the vacuum laminating mechanism, it sequentially passes through the pulling mechanism and the discharging section difference mechanism and is then wound into a roll by the product winding shaft. The pulling mechanism is used for pulling the product at equal intervals. The discharging section difference mechanism is used for adjusting the tension of the product.

[0013] In the above-mentioned continuous vacuum laminating equipment, an airbag mounting plate is detachably arranged in the mounting groove. The airbag is sleeved on one side of the airbag mounting plate facing the product. The airbag mounting plate is provided with a through inflation through-hole and an exhaust through-hole. The airbag is respectively communicated with the inflation passage and the exhaust passage through the inflation through-hole and the exhaust through-hole. A net-shaped air guide groove is arranged on the surface of the airbag mounting plate facing the product, and the air guide groove is communicated with the inflation passage and the exhaust passage.

[0014] In the above-mentioned continuous vacuum laminating equipment, an upper support rail and a lower support rail are arranged between the upper heating plate and the lower heating plate. A plurality of guide wheels are arranged at both ends of the upper pressing plate and the lower pressing plate. Limit blocks are arranged at both ends of the upper support rail and the lower support rail. The upper pressing plate and the lower pressing plate are respectively mounted on the upper support rail and the lower support rail through the guide wheels. When the upper pressing plate is not pressed on the lower pressing plate, there is a certain gap between the upper heating plate and the upper pressing plate, and between the lower heating plate and the lower pressing plate. The upper heating plate is fixedly arranged above the upper pressing plate, and the lower heating plate is connected with the lamination driving mechanism. The lower heating plate can move up and down under the drive of the lamination driving mechanism.

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The front view of the continuous vacuum laminating equipment according to the embodiment of the present invention;

[0017] Figure 2 The front view of the vacuum laminating mechanism according to the embodiment of the present invention;

[0018] Figure 3 The bottom view of the upper pressing plate according to the embodiment of the present invention;

[0019] Figure 4 The cross-sectional view of the upper pressing plate according to the embodiment of the present invention;

[0020] Figure 5 For Figure 4 The enlarged schematic view at A in

[0021] Figure 6 For Figure 4 The enlarged schematic view at B in

[0022] Figure 7 The structural schematic view of the airbag according to the embodiment of the present invention;

[0023] Figure 8 The bottom view of the main body of the upper pressing plate according to the embodiment of the present invention;

[0024] Figure 9 Top view of the lower pressing plate of the embodiment of the present invention;

[0025] Figure 10 Top view of the upper heating plate of the embodiment of the present invention;

[0026] Figure 11 Bottom view of the airbag mounting plate of the embodiment of the present invention;

[0027] Figure 12 Side view of the vacuum pressing mechanism of the embodiment of the present invention;

[0028] Figure 13 Front view of the coil feeding mechanism of the embodiment of the present invention;

[0029] Figure 14 Front view of the coil discharging mechanism of the embodiment of the present invention.

[0030] Explanation of the reference numerals in the drawings:

[0031] 100 Coil feeding mechanism, 110 Product unwinding shaft, 120 Release film recovery shaft, 130 Upper protective film unwinding shaft, 140 Upper protective auxiliary material unwinding shaft, 150 Lower protective auxiliary material unwinding shaft, 160 Lower protective film unwinding shaft, 170 Feeding step difference mechanism, 180 Pull-back mechanism, 181 Pull-back clamping mechanism, 182 Fixed clamping mechanism, 183 Pull-back driving mechanism, 200 Vacuum pressing mechanism, 210 Pressing support frame, 211 Upper support rail, 2111 Limit block, 212 Lower support rail, 220 Upper pressing plate, 221 Airbag, 2211 Extension part, 222 Vacuum sealing ring, 2221 Sealing pressing plate, 223 Installation groove, 224 Cooling mechanism, 225 Inflation passage, 226 Exhaust passage, 227 Airbag mounting plate, 2271 Inflation through hole, 2272 Exhaust through hole, 2273 Inflation and exhaust sealing ring, 2274 Air guide groove, 228 Guide wheel, 230 Lower pressing plate, 231 Spacer, 240 Upper heating plate, 241 Positioning block, 242 Heating device, 243 Heat insulation mechanism, 250 Lower heating plate, 260 Pressing driving mechanism, 261 Oil cylinder, 262 Pressing support plate, 263 Pressing guiding mechanism, 270 Maintenance guide rail, 300 Coil discharging mechanism, 310 Product winding shaft, 320 Upper protective film winding shaft, 330 Upper protective auxiliary material winding shaft, 340 Lower protective auxiliary material winding shaft, 350 Lower protective film winding shaft, 360 Pulling mechanism, 361 Front clamping mechanism, 362 Pulling clamping mechanism, 363 Pulling driving mechanism, 364 Rear clamping mechanism. Detailed implementation manners

[0032] The embodiments of the present invention will be described in detail below with reference to Figures 1 to 7, embodiments of the present invention provide a continuous vacuum pressing device, including a coil feeding mechanism 100, a vacuum pressing mechanism 200, and a coil discharging mechanism 300 connected in series in sequence. The coil feeding mechanism 100 is used to unwind the product to be pressed and send it into the vacuum pressing mechanism 200. The vacuum pressing mechanism 200 is used to perform vacuum pressing on the fed product. The coil discharging mechanism 300 is used to wind up the pressed product. The vacuum pressing mechanism 200 includes an upper pressing plate 220, a lower pressing plate 230, and a pressing driving mechanism 260 for driving the upper pressing plate 220 and the lower pressing plate 230 to press. The upper pressing plate 220 and the lower pressing plate 230 perform vacuum pressing on the product passing between them under the drive of the pressing driving mechanism 260. An airbag 221 is provided on the lower surface of the upper pressing plate 220 or the upper surface of the lower pressing plate 230. Vacuum sealing rings 222 are provided on both the lower surface of the upper pressing plate 220 and the upper surface of the lower pressing plate 230. The airbag 221 is disposed inside the vacuum sealing rings 222. An inflation passage 225 for inflating the airbag 221 and an exhaust passage 226 for exhausting the airbag 221 are provided on the upper pressing plate 220 or the lower pressing plate 230. When the upper pressing plate 220 is pressed on the lower pressing plate 230, the vacuum sealing ring 222 of the upper pressing plate 220 is aligned with the vacuum sealing ring 222 of the lower pressing plate 230. Extension portions 2211 are provided at both ends of the product contact surface of the airbag 221 in the length direction of the product, and the extension portions 2211 are flush with the product contact surface. The cross-section of the vacuum sealing ring 222 is a horizontally placed V shape, and a horizontal pressing surface is provided on the side of the vacuum sealing ring 222 facing the product. During the pressing process, the upper pressing plate 220 and the lower pressing plate 230 are pressed under the drive of the pressing driving mechanism 260, and the pressing surface of the vacuum sealing ring 222 contacts the surface of the product, so that two cavities are formed between the upper pressing plate 220 and the lower pressing plate 230 and the upper and lower surfaces of the product respectively. Subsequently, the airbag 221 is inflated to make the airbag 221 expand, so as to squeeze the air in the cavity out of the cavity from the joint between the vacuum sealing ring 222 and the product, thereby improving the vacuum degree of the cavity, making the vacuum degree of the cavity reach a certain level, and forming vacuum pressing on the product.

[0033] In this continuous vacuum pressing device, during the inflation process of the airbag 221, the extension parts 2211 at both ends in the length direction of the airbag 221 will contact the product and press on the connection part between the products inside and outside the vacuum pressing mechanism 200, thereby preventing the connection part from wrinkling due to uneven internal and external forces under the action of the lateral extrusion force exerted on the product during the inflation of the airbag 221, so as to improve the yield of the product. At the same time, the side of the vacuum sealing ring 222 facing the product contacts the product through the crimping surface. Compared with the traditional sealing ring with a circular cross-section, the contact area between the vacuum sealing ring 222 and the product is increased, thereby preventing the vacuum sealing ring 222 from leaving indentations on the product during the pressing process. And because the cross-section of the vacuum sealing ring 222 is a horizontally placed V shape, the vacuum sealing ring 222 has a certain elasticity in the longitudinal direction, thereby preventing the pressure between the crimping surface and the product from being too large during the pressing process, and further preventing the vacuum sealing ring 222 from leaving indentations on the product. This continuous vacuum pressing device can reduce the probability of the product wrinkling and having indentations, and improve the yield of the product.

[0034] Referring to Figure 3 and Figure 8 , in this embodiment, the airbag 221 is installed on the lower surface of the upper pressing plate 220. An installation groove 223 is provided on the lower surface of the upper pressing plate 220, and the airbag 221 is embedded in the installation groove 223. Avoidance grooves for avoiding the extension parts 2211 are provided at both ends in the length direction of the installation groove 223. It can be understood that the size of the avoidance groove should be slightly wider than the size of the extension part 2211 after the airbag 221 expands, so as to prevent the extension part 2211 from getting stuck in the avoidance groove after heating and expanding, resulting in the inability of the airbag 221 to recover after the pressing is completed.

[0035] Referring to Figure 4 and Figure 8 , in this embodiment, the back surface of the airbag mounting plate 227 is locked in the installation groove 223 of the upper pressing plate 220 by bolts to realize the installation of the airbag 221. The airbag mounting plate 227 is provided with a through inflation through hole 2271 and an exhaust through hole 2272. The airbag 221 is communicated with the inflation passage 225 and the exhaust passage 226 inside the upper pressing plate 220 through the inflation through hole 2271 and the exhaust through hole 2272 respectively. Sealing rings 2273 for inflation and exhaust are provided on the outer sides of one ends of the inflation through hole 2271 and the exhaust through hole 2272 facing the upper pressing plate 220 to prevent the gaps between the airbag mounting plate 227 and the upper pressing plate 220 from affecting the airtightness of the airbag 221. Inflation and exhaust sealing grooves for accommodating the sealing rings 2273 for inflation and exhaust are provided on the outer sides of the upper ends of the inflation through hole 2271 and the exhaust through hole 2272. Referring to Figure 4, in this embodiment, the inflation passage 225 for connecting the inflation interface of the inflation device and the exhaust passage 226 for connecting the exhaust interface of the air extraction device are both arranged on the side surface of the upper pressing plate 220 to facilitate the connection of the inflation device and the air extraction device. It can be understood that both the vacuum sealing ring 222 and the airbag 221 are made of materials with certain deformation ability such as rubber or silica gel. The size of the airbag 221 when not inflated and expanded should be slightly smaller than that of the airbag mounting plate 227, so as to ensure that when the airbag 221 is sleeved on the airbag mounting plate 227, the edge of the airbag 221 is in close contact with the airbag mounting plate 227, ensuring the airtightness of the airbag 221. Refer to Figure 4 and Figure 6 , a flange is provided on the inner side of the socket of the airbag 221, and a groove matching the shape of the flange is provided on the edge of the back side of the airbag mounting plate 227. When the airbag 221 is sleeved on the airbag mounting plate 227, the flange can be embedded into the groove to further improve the airtightness after the airbag 221 is installed.

[0036] Refer to Figure 11 , in some embodiments, in order to further prevent the product from wrinkling, a mesh-shaped air guide groove 2274 is provided on the surface of the airbag mounting plate 227 facing the product, and the air guide groove 2274 communicates with the inflation through hole 2271 and the exhaust through hole 2272. When the airbag 221 starts to be inflated from a deflated state, the air guide groove 2274 can quickly allow the gas charged from the exhaust through hole 2272 to flow along the air guide groove 2274 to each area of the airbag 221, so that the entire product contact surface of the airbag 221 expands asynchronously as much as possible, avoiding wrinkles caused by uneven stress on the product due to the sequential expansion of different areas of the airbag 221. At the same time, when the airbag 221 exhausts and contracts, it can prevent the airbag 221 from blocking the exhaust through hole 2272, resulting in the airbag 221 being unable to return to its original state.

[0037] Refer to Figure 9 , in this embodiment, in order to prevent the upper pressing plate 220 and the lower pressing plate 230 from leaving indentations on the continuous product, gaskets 231 are provided on both sides in the width direction of the lower surface of the upper pressing plate 220 or the upper surface of the lower pressing plate 230. The gasket 231 is used to have a certain gap between the lower surface of the upper pressing plate 220 and the upper surface of the lower pressing plate 230 when the upper pressing plate 220 is pressed onto the lower pressing plate 230, so as to prevent the edge parts of the upper pressing plate 220 and the lower pressing plate 230 from contacting the product during the pressing process, thereby preventing the upper pressing plate 220 and the lower pressing plate 230 from leaving indentations at the connection. In addition, the gasket 231 can also prevent the airbag 221 and the product from coming into contact in advance at high temperatures, avoiding the airbag 221 from being heated and rapidly rising in temperature when not inflated, resulting in a reduction in the service life of the airbag 221. In this embodiment, two gaskets 231 are provided on both sides in the width direction of the upper surface of the lower pressing plate 230.

[0038] Refer toFigure 3 , Figure 4 and Figure 9 , in this embodiment, for the convenience of installing the vacuum sealing ring 222, vacuum sealing grooves for installing the vacuum sealing ring 222 are provided on the lower surface of the upper pressing plate 220 and the upper surface of the lower pressing plate 230. A detachable sealing pressing plate 2221 is arranged outside the vacuum sealing groove. The sealing pressing plate 2221 presses one side of the vacuum sealing ring 222 close to the upper pressing plate 220 or the lower pressing plate 230 into the vacuum sealing groove to achieve the installation of the vacuum sealing ring 222.

[0039] Referring to Figure 2 , in this embodiment, for heating the product during the pressing process, an upper heating plate 240 and a lower heating plate 250 are respectively arranged above the upper pressing plate 220 and below the lower pressing plate 230. Heating devices 242 are arranged in the upper heating plate 240 and the lower heating plate 250. To prevent the upper heating plate 240 and the lower heating plate 250 from continuously heating the upper pressing plate 220 and the lower pressing plate 230, resulting in too high temperatures of the airbag 221 and the product, shortening the service life of the airbag 221 and reducing the quality of the product, there are certain gaps between the upper heating plate 240 and the upper pressing plate 220, and between the lower pressing plate 230 and the lower heating plate 250 when the upper pressing plate 220 is not pressed against the lower pressing plate 230.

[0040] Referring to Figure 2 and Figure 12, the upper heating plate 240 is fixedly arranged at the top of the pressing support frame 210, and the pressing driving mechanism 260 is arranged at the bottom of the pressing support frame 210. The pressing driving mechanism 260 includes a pressing support plate 262, an oil cylinder 261 and a pressing guiding mechanism 263. The pressing support plate 262 is slidably arranged at the bottom of the pressing support frame 210 through the pressing guiding mechanism 263, and the pressing support plate 262 can move up and down along the pressing guiding mechanism 263 under the drive of the oil cylinder 261. It can be understood that the pressing guiding mechanism 263 can adopt a guiding column or a guiding slide rail. The lower heating plate 250 is arranged on the upper surface of the pressing support plate 262. Upper support rails 211 and lower support rails 212 are arranged on both sides of the pressing support frame 210. The upper support rails 211 and the lower support rails 212 are arranged between the upper heating plate 240 and the lower heating plate 250, and the upper support rails 211 are located above the lower support rails 212. A plurality of guiding wheels are arranged at both ends in the length direction of the upper pressing plate 220 and the lower pressing plate 230. The upper support plate and the lower support plate are respectively mounted on the upper support rails 211 and the lower support rails 212 through their respective guiding wheels. Limit blocks 2111 are arranged at both ends in the width direction of the upper support rails 211 and the lower support rails 212. The limit blocks 2111 limit the positions of the guide wheels 228 of the upper pressing plate 220 and the lower pressing plate 230 in the width direction. During pressing, the lower heating plate 250 is lifted under the drive of the oil cylinder 261, first contacts the lower pressing plate 230, and then lifts the lower pressing plate 230 from the lower support rail 212. Under the guiding of the limit blocks 2111 of the lower support rail 212, the lower pressing plate 230 is lifted together with the lower heating plate 250. Subsequently, the lower pressing plate 230 contacts the product and aligns and presses with the upper pressing plate 220, and continues to lift with the upper pressing plate 220. The upper pressing plate 220 is lifted together with the lower heating plate 250 and the lower pressing plate 230 under the guiding of the limit blocks 2111 of the upper support rail 211, contacts the upper heating plate 240, and until the pressure between the upper pressing plate 220 and the lower pressing plate 230 reaches a preset value, the lower pressing plate 230 stops lifting and starts to perform vacuum hot pressing on the product.

[0041] Referring to Figure 2 , in this embodiment, in order to ensure that the upper pressing plate 220 and the lower pressing plate 230 can be aligned during pressing, positioning blocks 241 are arranged on the lower surface of the upper heating plate 240 and the upper surface of the lower heating plate 250, and positioning grooves matching the shapes of the corresponding positioning blocks 241 are arranged on the upper surface of the upper pressing plate 220 and the lower surface of the lower pressing plate 230. During the pressing process, the positioning blocks 241 on the upper heating plate 240 will be embedded into the positioning grooves on the upper pressing plate 220, and the positioning blocks 241 on the lower heating plate 250 will be embedded into the positioning grooves on the lower pressing plate 230 to ensure that the upper pressing plate 220 and the lower pressing plate 230 can be aligned during the pressing process. Referring to Figure 2, in this embodiment, the positioning blocks 241 and the positioning grooves are arranged on the upper heating plate 240, the upper pressing plate 220, the lower heating plate 250 and the lower pressing plate 230 along the width direction of the product, so that the positions of the upper pressing plate 220 and the lower pressing plate 230 in the length direction can be positioned. Cooperating with the limiting blocks 2111 on the upper support rail 211 and the lower support rail 212, the positioning of the upper pressing plate 220 and the lower pressing plate 230 in the length direction and the width direction can be realized during the pressing process, ensuring that the upper pressing plate 220 and the lower pressing plate 230 can be aligned. In this embodiment, the cross-section of the positioning block 241 is trapezoidal, and the narrower plane of the positioning block 241 faces the upper pressing plate 220 or the lower pressing plate 230 to guide the engagement of the positioning block 241 with the positioning groove during the pressing process.

[0042] Refer to Figure 12 , in this embodiment, in order to facilitate the replacement of the upper pressing plate 220 and the lower pressing plate 230, one end of the upper support rail 211 and the lower support rail 212 can be connected to a detachable maintenance guide rail 270. When it is necessary to replace the upper pressing plate 220 and the lower pressing plate 230 due to maintenance or product type change, the maintenance guide rail 270 is connected to one end of the upper support rail 211 and the lower support rail 212, and the limiting block 2111 at this end is removed. Then, the upper pressing plate 220 and the lower pressing plate 230 can be slid along the upper support rail 211 and the lower support rail 212 to the maintenance guide rail 270 through the guide wheels 228, so as to facilitate the removal of the upper pressing plate 220 and the lower pressing plate 230 from the mechanism. Then, the removed upper pressing plate 220 and lower pressing plate 230 are taken off the maintenance guide rail 270, and the new upper pressing plate 220 and lower pressing plate 230 are placed on the maintenance guide rail 270. The new upper pressing plate 220 and lower pressing plate 230 are pushed back along the maintenance guide rail 270 to the upper support rail 211 and the lower support rail 212, and the limiting block 2111 is reinstalled, so that the replacement of the upper pressing plate 220 and the lower pressing plate 230 can be quickly completed, improving production efficiency. It can be understood that an openable and closable maintenance window should be provided on the side of the outer cover of the vacuum pressing mechanism 200 at the position corresponding to the upper support rail 211 and the lower support rail 212 to facilitate the installation and disassembly of the maintenance guide rail 270.

[0043] Refer to Figure 2, in some embodiments, to avoid the high temperature of the upper heating plate 240 and the lower heating plate 250 melting the glue on the product in front of the vacuum pressing mechanism 200 during the pressing process, resulting in defective products, a cooling mechanism 224 is provided at the entrances of the upper pressing plate 220 and the lower pressing plate 230 to reduce the temperature at the entrances and prevent the glue on the product in front of the vacuum pressing mechanism 200 from melting. At the same time, heat insulation structures are provided at the entrances of the upper heating plate 240 and the lower heating plate 250. The heat insulation structures divide the upper heating plate 240 and the lower heating plate 250 into a cooling area and a heating area. The cooling area of the upper heating plate 240 is arranged above the cooling mechanism 224 of the upper pressing plate 220, and the cooling area of the lower heating plate 250 is arranged below the cooling mechanism 224 of the lower pressing plate 230 to isolate the temperatures of the cooling area and the heating area and avoid the cold and heat from meeting at the connection between the cooling area and the heating area, which may cause bubbles or wrinkles in the product at this location. It can be understood that the cooling mechanism 224 can be a refrigeration semiconductor or a cooling channel for the flow of a cooling medium, and the heat insulation mechanism 243 can be a heat insulation groove or a heat insulation material embedded in the upper heating plate 240 and the lower heating plate 250. Refer to Figure 2 and Figure 10 , in this embodiment, the cooling mechanism 224 is a cooling channel, and the heat insulation mechanism 243 is a heat insulation groove. The heat insulation groove is arranged at the entrances of the upper heating plate 240 and the lower heating plate 250 along the width direction of the product.

[0044] , in some embodiments, to avoid damaging the product during the vacuum hot pressing process of the product, it is necessary to cover the front and back sides of the product with a protective film and auxiliary protective materials. Refer to Figure 13, in this embodiment, the coil loading mechanism 100 includes a product unwinding shaft 110, a release film recovery shaft 120, an upper protective film unwinding shaft 130, a lower protective film unwinding shaft 160, an upper protective auxiliary material unwinding shaft 140, and a lower protective auxiliary material unwinding shaft that are rotatably arranged on the frame, as well as a feeding section difference mechanism 170 and a pulling-back mechanism 180. The release film recovery shaft 120 can rotate under the drive of a drive mechanism. The release film recovery shaft 120 is arranged on one side of the product unwinding shaft 110. The release film recovery shaft 120 is used to recover the release film on the surface of the product, and the feeding section difference mechanism 170 is used to adjust the tension of the product. The upper protective film unwinding shaft 130 and the upper protective auxiliary material unwinding shaft 140 are arranged above the pulling-back mechanism 180, and the lower protective film unwinding shaft 160 and the lower protective auxiliary material unwinding shaft 150 are arranged below the pulling-back mechanism 180. The product unwinding shaft 110 is used to unwind the product to be pressed. The upper protective film unwinding shaft 130 and the upper protective auxiliary material unwinding shaft 140 are respectively used to unwind the upper protective film and the upper protective auxiliary material. The lower protective film unwinding shaft 160 and the lower protective auxiliary material unwinding shaft 150 are respectively used to unwind the lower protective film and the lower protective auxiliary material. After the upper and lower surfaces of the product are sequentially covered with the upper protective film and the protective auxiliary material from the inside out, they are then sent into the vacuum pressing mechanism 200 for vacuum pressing. The product unwound from the product unwinding shaft 110 sequentially passes through the feeding section difference mechanism 170 and the pulling-back mechanism 180 and enters the vacuum pressing mechanism 200. The pulling-back mechanism 180 is used to pull back the product to make the product in the vacuum pressing mechanism 200 tense.

[0045] Referring to Figure 14 , the coil unloading mechanism 300 includes a product winding shaft 310, an upper protective film winding shaft 320, a lower protective film winding shaft 350, an upper protective auxiliary material winding shaft 330, and a lower protective auxiliary material winding shaft 340 that are rotatably arranged on the frame, as well as a winding section difference mechanism and a pulling mechanism 360. The product winding shaft 310, the upper protective film winding shaft 320, the lower protective film winding shaft 350, the upper protective auxiliary material winding shaft 330, and the lower protective auxiliary material winding shaft 340 can all rotate under the drive of a drive mechanism. The upper protective film winding shaft 320 and the upper protective auxiliary material winding shaft 330 are arranged on the upper side of the pulling mechanism 360, and the lower protective film winding shaft 350 and the lower protective auxiliary material winding shaft 340 are arranged on the lower side of the pulling mechanism 360. The product winding shaft 310 is used to wind the pressed product into a roll. The upper protective film winding shaft 320 and the upper protective auxiliary material winding shaft 330 are respectively used to wind the upper protective film and the upper protective auxiliary material into a roll. The lower protective film winding shaft 350 and the lower protective auxiliary material winding shaft 340 are respectively used to wind the lower protective film and the lower protective auxiliary material into a roll. After the product is pressed by the vacuum pressing mechanism 200, it sequentially passes through the pulling mechanism 360 and the winding section difference mechanism and is then wound into a roll by the product winding shaft 310. The pulling mechanism 360 is used to pull the product at equal intervals so that the vacuum pressing mechanism 200 can perform vacuum pressing on each section of the continuous product, and the winding section difference mechanism is used to adjust the tension of the product.

[0046] It is understandable that, with reference to Figure 13 and Figure 14 , a plurality of transition rollers are provided on the tape running paths of the product, the upper protective film, the upper auxiliary protective material, the lower protective film and the lower auxiliary protective material to guide the above-mentioned continuous tape to run along a preset path. The feeding section difference mechanism 170 and the receiving section difference mechanism generally consist of a movable roller and a roller driving mechanism for driving the movement of the roller. Their specific structures are common knowledge in the art and will not be elaborated here. The pulling-back mechanism 180 includes a pulling-back clamping mechanism 181 and a fixed clamping mechanism 182. The fixed clamping mechanism 182 is arranged in front of the inlet of the vacuum pressing mechanism 200, and the pulling-back clamping mechanism 181 is arranged on the path between the feeding section difference mechanism 170 and the fixed clamping mechanism 182. The pulling-back clamping mechanism 181 can approach or move away from the fixed clamping mechanism 182 in the tape running direction of the product under the drive of the pulling-back driving mechanism 183. The tape pulling mechanism 360 includes a front clamping mechanism 361, a tape pulling clamping mechanism 362 and a rear clamping mechanism 364. The front clamping mechanism 361 is arranged at the rear side of the outlet of the vacuum pressing mechanism 200, and the rear clamping mechanism 364 is arranged on the tape running path from the front clamping mechanism 361 to the receiving section difference mechanism. The tape pulling clamping mechanism 362 is arranged between the front clamping mechanism 361 and the rear clamping mechanism 364 and can move back and forth between the front clamping mechanism 361 and the rear clamping mechanism 364 along the tape running path of the product under the drive of the tape pulling driving mechanism 363. The above-mentioned clamping mechanism can clamp or release the product under the control of the controller and can be a pneumatic gripper or a pair of clamping plates driven by a cylinder. The pulling-back driving mechanism 183 and the tape pulling driving mechanism 363 can be linear driving mechanisms composed of driving devices such as cylinders or motors, transmission mechanisms such as lead screw pairs or synchronous belts, and guiding mechanisms such as slide rails. In this embodiment, the pulling-back driving mechanism 183 uses a cylinder, and the tape pulling driving mechanism 363 uses a linear platform composed of a motor and a lead screw pair.

[0047] It should be noted that in the description of the present invention, if there is any reference to the description of directions, such as the upper, lower, front, rear, left, right, etc., indicating the orientation or positional relationship, it is all based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation to the present invention.

[0048] In the description of the present invention, the meaning of "several" is one or more, the meaning of "a plurality" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" or "second", etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0049] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0050] The above embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A continuous vacuum pressing device, characterized in that: The invention comprises a coil feeding mechanism (100), a vacuum pressing mechanism (200) and a coil unloading mechanism (300) which are connected in series in sequence. The coil feeding mechanism (100) is used to unwind the product to be pressed and feed it into the vacuum pressing mechanism (200). The vacuum pressing mechanism (200) is used to vacuum press the fed product. The coil unloading mechanism (300) is used to recycle the pressed product into a roll. The vacuum pressing mechanism (200) comprises an upper pressing plate (220), a lower pressing plate (230) and a pressing drive mechanism (260) for driving the upper pressing plate (220) and the lower pressing plate (230) to press. An air bag (221) is provided on the lower surface of the upper pressing plate (220) or the upper surface of the lower pressing plate (230). A vacuum sealing ring (222) is provided on the lower surface of the upper pressing plate (220) and the upper surface of the lower pressing plate (230). The airbag (221) is arranged on the inner side of the vacuum sealing ring (222); the upper pressing plate (220) or the lower pressing plate (230) is provided with an inflation passage (225) for inflating the airbag (221), and an exhaust passage (226) for exhausting the airbag (221); when the upper pressing plate (220) is pressed onto the lower pressing plate (230), the vacuum sealing ring (222) of the upper pressing plate (220) is aligned with the vacuum sealing ring (222) of the lower pressing plate (230); the product contact surface of the airbag (221) is provided with extension parts (2211) at both ends in the length direction of the product; the extension parts (2211) are flush with the product contact surface; the cross-section of the vacuum sealing ring (222) is a horizontal V-shape; and the vacuum sealing ring (222) is provided with a horizontal crimping surface on the side facing the product.

2. The continuous vacuum pressing device according to claim 1, characterized in that: A mounting groove (223) for embedding and mounting the airbag (221) is provided on the lower surface of the upper pressing plate (220) or the upper surface of the lower pressing plate (230), and avoidance grooves for avoiding the extension portion (2211) are provided at both ends of the mounting groove (223) in the length direction.

3. The continuous vacuum pressing equipment according to claim 1, characterized in that: A pair of gaskets (231) are provided on the lower surface of the upper pressing plate (220) or the upper surface of the lower pressing plate (230), and the two gaskets (231) are respectively provided on both sides of the upper pressing plate (220) or the lower pressing plate (230) in the width direction, and the gaskets (231) are used to ensure a certain gap between the lower surface of the upper pressing plate (220) and the upper surface of the lower pressing plate (230) when the upper pressing plate (220) is pressed onto the lower pressing plate (230).

4. The continuous vacuum pressing device according to claim 1, characterized in that: An upper heating plate (240) is arranged above the upper pressing plate (220), and a lower heating plate (250) is arranged below the lower pressing plate (230). Cooling mechanisms (224) are arranged at the entrances of the upper pressing plate (220) and the lower pressing plate (230). Heat insulation structures are arranged at the entrances of the upper heating plate (240) and the lower heating plate (250). The heat insulation structure divides the upper heating plate (240) and the lower heating plate (250) into a cooling area and a heating area. The cooling area of ​​the upper heating plate (240) is arranged above the cooling mechanism (224) of the upper pressing plate (220), and the cooling area of ​​the lower heating plate (250) is arranged below the cooling mechanism (224) of the lower pressing plate (230).

5. The continuous vacuum pressing equipment according to claim 4, characterized in that: The cooling mechanism (224) is a cooling channel, and the cooling channel is used for the flow of cooling medium.

6. The continuous vacuum pressing device according to claim 4, characterized in that: The heat insulation mechanism (243) is a heat insulation groove, and the heat insulation groove is arranged on the upper heating plate (240) and the lower heating plate (250) along the width direction of the product.

7. The continuous vacuum pressing equipment according to claim 1, characterized in that: The coil material feeding mechanism (100) comprises a product discharge shaft (110) rotatably arranged on a frame, a release film recovery shaft (120), an upper protective film discharge shaft (130), a lower protective film discharge shaft (160), an upper protective auxiliary material discharge shaft (140) and a lower protective auxiliary material discharge shaft, as well as a discharge step difference mechanism (170) and a pull-back mechanism (180); the release film recovery shaft (120) can be driven to rotate by a driving mechanism; the release film recovery shaft (120) is arranged on one side of the product discharge shaft (110); the release film recovery shaft (120) is used to recover the release film on the surface of the product; the discharge step difference mechanism (170) is used to adjust the tension of the product; the upper protective film discharge shaft (130) and the upper protective auxiliary material discharge shaft (140) are arranged above the pull-back mechanism (180); The lower protective film discharge shaft (160) and the lower protective auxiliary material discharge shaft (150) are arranged below the pull-back mechanism (180); the product discharge shaft (110) is used to discharge the product to be pressed; the upper protective film discharge shaft (130) and the upper protective auxiliary material discharge shaft (140) are used to discharge the upper protective film and the upper protective auxiliary material, respectively; the lower protective film discharge shaft (160) and the lower protective auxiliary material discharge shaft (150) are used to discharge the lower protective film and the lower protective auxiliary material, respectively; the product discharged by the product discharge shaft (110) passes through the discharge step difference mechanism (170) and the pull-back mechanism (180) in turn and enters the vacuum pressing mechanism (200); the pull-back mechanism (180) is used to pull the product back so as to tension the product in the vacuum pressing mechanism (200).

8. The continuous vacuum pressing equipment according to claim 1, characterized in that: The coil unloading mechanism (300) comprises a product receiving shaft (310), an upper protective film receiving shaft (320), a lower protective film receiving shaft (350), an upper protective auxiliary material receiving shaft (330) and a lower protective auxiliary material receiving shaft (340) which are rotatably arranged on a frame, as well as a receiving step difference mechanism and a pulling mechanism (360); the product receiving shaft (310), the upper protective film receiving shaft (320), the lower protective film receiving shaft (350), the upper protective auxiliary material receiving shaft (330) and the lower protective auxiliary material receiving shaft (340) can all be driven to rotate by a driving mechanism; the upper protective film receiving shaft (320) and the upper protective auxiliary material receiving shaft (330) are arranged on the upper side of the pulling mechanism (360); the lower protective film receiving shaft (350) and The lower protective auxiliary material receiving shaft (340) is arranged at the lower side of the pulling mechanism (360), the product receiving shaft (310) is used to receive the pressed product into a roll, the upper protective film receiving shaft (320) and the upper protective auxiliary material receiving shaft (330) are respectively used to recycle the upper protective film and the upper protective auxiliary material into a roll, the lower protective film receiving shaft (350) and the lower protective auxiliary material receiving shaft (340) are respectively used to recycle the lower protective film and the lower protective auxiliary material into a roll, after the product is pressed by the vacuum pressing mechanism (200), it passes through the pulling mechanism (360) and the receiving step difference mechanism in turn, and is then recovered into a roll by the product receiving shaft (310), the pulling mechanism (360) is used to pull the product at an equal distance, and the receiving step difference mechanism is used to adjust the tension of the product.

9. The continuous vacuum pressing device according to claim 2, characterized in that: An airbag mounting plate (227) is detachably provided in the mounting groove (223); the airbag (221) is sleeved on the side of the airbag mounting plate (227) facing the product; the airbag mounting plate (227) is provided with a through inflation hole (2271) and an exhaust hole (2272); the airbag (221) is connected to the inflation passage (225) and the exhaust passage (226) through the inflation hole (2271) and the exhaust hole (2272), respectively; a mesh air guide groove (2274) is provided on the surface of the airbag mounting plate (227) facing the product; the air guide groove (2274) is connected to the inflation passage (225) and the exhaust passage (226).

10. The continuous vacuum pressing device according to claim 4, characterized in that: An upper support rail (211) and a lower support rail (212) are arranged between the upper heating plate (240) and the lower heating plate (250); a plurality of guide wheels (228) are arranged at both ends of the upper pressing plate (220) and the lower pressing plate (230); a limiting block (2111) is arranged at both ends of the upper supporting rail (211) and the lower supporting rail (212); the upper pressing plate (220) and the lower pressing plate (230) are respectively mounted on the upper supporting rail (211) and the lower supporting rail (212) via the guide wheels (228). When the upper pressing plate (220) is not pressed onto the lower pressing plate (230), there is a certain gap between the upper heating plate (240) and the upper pressing plate (220), and between the lower heating plate (250) and the lower pressing plate (230). The upper heating plate (240) is fixedly arranged above the upper pressing plate (220), and the lower heating plate (250) is connected to the pressing driving mechanism (260). The lower heating plate (250) can be lifted and lowered under the drive of the pressing driving mechanism (260).

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