Automatic assembling equipment for thermal insulation cotton

Abstract

This invention discloses an automatic assembly device for thermal insulation cotton, relating to the field of thermal insulation cotton assembly technology. It includes an assembly platform and a control device, and further includes an assembly assembly component installed below the control device. The assembly assembly component comprises: a cold mold, a pusher ring, and a hot press mold, sequentially nested from the inside out, each driven vertically by a telescopic cylinder; a forming component disposed within the gap between the cold mold and the hot press mold, used to form a hot melt adhesive frame; the pusher ring, when moving downwards, presses the formed hot melt adhesive frame into the gap between the lower silicone frame and the cold mold; and a heating component disposed inside the hot press mold near the bottom, used to heat the lower surface of the hot press mold. This invention completely fills the gap between the aerogel felt and the silicone frame with the hot melt adhesive frame, ensuring a tight bond between them after subsequent hot pressing and encapsulation, eliminating air bubbles and improving the quality of the thermal insulation cotton product after hot pressing.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation cotton assembly technology, specifically to an automatic thermal insulation cotton assembly device. Background Technology

[0002] Due to its excellent temperature resistance, fire resistance, and shock absorption functions, protective heat insulation sheets are widely used in the safety protection of new energy battery packs. Currently, existing heat insulation cotton is processed by hot pressing. That is, before hot pressing, PET film, silicone frame, aerogel felt and PET film are arranged in sequence to form the basic structure of heat insulation cotton, and then sent into the pressing area for hot pressing and sealing.

[0003] However, during the assembly process, since the aerogel felt is embedded in the inner frame of the silicone frame, the air trapped in the gap between the aerogel felt and the silicone frame during hot pressing may cause air bubbles to appear in the heat insulation sheet after hot pressing, thus affecting the quality and performance of the final product. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic assembly device for thermal insulation cotton to solve at least one technical problem existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic assembly device for thermal insulation cotton, comprising an assembly platform and a control device, and further comprising an assembly component installed below the control device, the assembly component comprising:

[0006] The cold mold, the pusher ring, and the hot press mold are nested together from the inside out, and each of the three is vertically driven by a telescopic cylinder.

[0007] The molding component is disposed in the gap between the cold mold and the hot mold, and the molding component is used to form a hot melt adhesive frame. When the pusher ring moves down, it can press the formed hot melt adhesive frame into the gap between the lower silicone frame and the cold mold.

[0008] The heating element is located inside the hot press mold near the bottom and is used to heat the lower surface of the hot press mold.

[0009] Preferably, it also includes an automatic feeder for inserting the aerogel felt into the inner frame of the hot melt adhesive frame and a hot press molding machine for hot pressing.

[0010] Preferably, the molding component includes four mounting cavities respectively opened on the inner walls of the four sides of the hot press mold, and a molding module is horizontally slidably installed on the inner wall of the mounting cavity. The molding module has a molding cavity near the outer wall of the cold mold, and the four molding cavities and the outer wall of the cold mold can be combined to form a sealed cavity. The molding module also has an injection channel for injecting hot melt adhesive into the molding cavity, and the injection channel is connected to an external adhesive injection device.

[0011] It also includes a drive assembly for driving the molding module to move closer to or further away from the cold mold within the mounting cavity.

[0012] Preferably, the driving assembly includes four slide bars that are slidably mounted on the inner walls of four mounting cavities, and the slide bars are rotatably connected to the corresponding molding modules by connecting rods. Hollow cavities are opened inside the four corners of the hot press mold, and a transmission wheel is rotatably mounted inside each hollow cavity. A transmission belt wound around the transmission wheel is connected between two adjacent slide bars, and a through hole is provided between the mounting cavity and the hollow cavity for the transmission belt to pass through. A servo motor for driving one of the transmission wheels to rotate in both directions is also installed inside the hot press mold.

[0013] Preferably, after the molding module is retracted into the mounting cavity, its outer plane is flush with the inner wall of the hot press mold.

[0014] Preferably, the hot press mold has an annular injection channel inside near the heating component. The injection channel and the glue inlet channel are connected by a hot melt glue pipe, and the glue outlet of the glue inlet channel is located on the bottom inner wall of the molding cavity.

[0015] Preferably, the heating component includes an annularly laid electric heating pipe near the lower interior of the hot press mold, and the electric heating pipe is electrically connected and controlled by a control device.

[0016] Preferably, the cold mold has an annular cooling pipe inside, and the cooling pipe is connected to an external cold circulation pipe.

[0017] Preferably, the height of the cooling range of the cooling pipe is from the bottom surface to the position of the molding cavity.

[0018] Preferably, at least four sets of glue inlet channels and hot melt glue tubes are provided, and the glue outlets of the four sets of glue inlet channels are respectively located at the center of the four molding cavities.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The invention uses a hot melt adhesive frame to completely fill the gap between the aerogel felt and the silicone frame, ensuring a tight bond between them after subsequent hot-pressing. This eliminates air bubbles and improves the quality of the heat insulation cotton product after hot pressing. Furthermore, using a solid hot melt adhesive frame for filling not only provides sufficient space for the subsequent insertion of the aerogel felt but also avoids the adhesive being squeezed out of the silicone frame during the insertion of the aerogel felt, compared to adhesive applied by a coating machine, thus ensuring the quality of the filling. Attached Figure Description

[0021] Figure 1 This is the front view of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is a front sectional view and a partial enlarged view of the present invention;

[0024] Figure 4 For the present invention Figure 3 Cross-sectional view and enlarged view along the middle AA;

[0025] Figure 5 This is a schematic cross-sectional view of the assembled thermal insulation cotton according to the present invention;

[0026] Figure 6 This is a flowchart illustrating the assembly and hot-pressing process of the present invention.

[0027] Figure 7 This is a simplified flowchart illustrating the assembly process of the present invention.

[0028] In the diagram: 1. Assembly platform; 2. Conveyor belt assembly; 3. Cold mold; 4. Pusher ring; 5. Hot press mold; 6. Control equipment; 7. Cooling pipe; 8. Mounting cavity; 9. Molding module; 10. Connecting rod; 11. Molding cavity; 12. Slider; 13. Heating pipe; 14. Glue injection channel; 15. Glue inlet channel; 16. Hot melt glue pipe; 17. Hollow cavity; 18. Drive wheel; 19. Drive belt; 20. PET film; 21. Silicone frame; 22. Hot melt glue frame; 23. Aerogel felt. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1;

[0031] Please see Figures 1 to 7 The present invention provides a technical solution: an automatic assembly device for thermal insulation cotton, comprising an assembly platform 1 and a control device 6, and further comprising an assembly component installed below the control device 6, the assembly component comprising:

[0032] The cold mold 3, the pusher ring 4, and the hot press mold 5 are sequentially nested from the inside out, and each of the three is vertically driven by a telescopic cylinder.

[0033] A molding component is set in the gap between the cold mold 3 and the hot press mold 5, and the molding component is used to mold the hot melt adhesive frame 22. When the pusher ring 4 moves down, it can press the molded hot melt adhesive frame 22 into the gap between the lower silicone frame 21 and the cold mold 3.

[0034] The heating element is located inside the hot press mold 5 near the bottom and is used to heat the lower surface of the hot press mold 5.

[0035] In order to eliminate the gap between the silicone frame 21 and the aerogel felt 23 and improve the quality of the thermal insulation cotton assembly after hot pressing, a layer of hot melt adhesive is added between the silicone frame 21 and the aerogel felt 23 to fill the gap between them, thereby eliminating voids and air bubbles after hot pressing. The specific method of adding adhesive is as follows.

[0036] When the conveyor belt assembly 2 transports the PET film 20 and the silicone frame 21 to the bottom of the hot press mold 5, the conveying stops. At this time, driven by the telescopic cylinder, the cold mold 3 is first moved down so that it passes through the inner frame of the silicone frame 21 and presses onto the PET film 20 below, leaving a gap between it and the silicone frame 21. Then the pusher ring 4 moves down again to press the hot melt adhesive frame 22 formed by the molding assembly into the gap between the silicone frame 21 and the cold mold 3 below, thus completing the filling of the gap.

[0037] It is worth mentioning that the area of ​​the cold mold 3 is the same as the area of ​​the subsequent aerogel felt 23, that is, enough space is left for the aerogel felt 23 to be inserted. After filling, the hot press mold 5 is pressed down again. The heating component is used to preheat and press the silicone frame 21, expel the moisture and gas in the silicone frame 21, and raise the temperature of the silicone frame, increasing its softness and extensibility. At the same time, it will also heat the solid hot melt adhesive frame 22, causing the side that contacts the silicone frame to soften and melt to a certain extent. Under the extrusion of the hot press mold 5, the silicone frame 21 will bond with the outer melted hot melt adhesive frame 22, thus forming an integral frame.

[0038] After the preheating and pressing is completed, the cold mold 3 moves upward to separate it from the hot melt adhesive frame 22, and then the hot press mold 5 moves upward again to complete the process of preheating and pressing the silicone frame 21 and applying adhesive.

[0039] Then, the aerogel felt 23 is inserted into the hot melt adhesive frame 22. During the subsequent hot pressing process, the hot melt adhesive frame 22 will melt and become liquid, and under the pressure of the hot press, it will completely fill the gap between the aerogel felt 23 and the silicone frame 21, and at the same time, it will tightly bond the two together, which will not only eliminate the generation of air bubbles, but also improve the quality of the heat insulation cotton product after hot pressing.

[0040] It is worth noting that filling with solid hot melt adhesive frame 22 not only leaves corresponding space for the subsequent insertion of aerogel felt 23, but also avoids the adhesive being squeezed out of silicone frame 21 when inserting aerogel felt 23, compared to adhesive applied by a coating machine, thus ensuring the quality of filling.

[0041] In one preferred embodiment, the system also includes an automatic feeder for inserting the aerogel felt 23 into the inner frame of the hot melt adhesive frame 22 and a hot press molding machine for hot pressing.

[0042] After the above adhesive application is completed, the conveyor belt assembly 2 transports the PET film 20 with the hot melt adhesive frame 22 and the silicone frame 21 to the automatic feeder. The automatic feeder then inserts the aerogel felt 23 into the hot melt adhesive frame 22. For details, please refer to [link to relevant documentation]. Figure 6 and Figure 7 Automatic feeding can be achieved by needle punching into the frame;

[0043] After the frame is in place, the PET film 20 is placed on top, and then the subsequent hot pressing operation can be carried out using hot pressing molding.

[0044] Example 2 provides an embodiment of molding a hot melt adhesive frame 22 based on Example 1 above;

[0045] The molding assembly includes four mounting cavities 8 respectively opened on the inner walls of the four sides of the hot press mold 5, and a molding module 9 is horizontally slidably installed on the inner wall of the mounting cavity 8. The molding module 9 has a molding cavity 11 opened near the outer wall of the cold mold 3, and the four molding cavities 11 and the outer wall of the cold mold 3 can be combined to form a sealed cavity. The molding module 9 also has an injection channel 15 for injecting hot melt adhesive into the molding cavity 11, and the injection channel 15 is connected to an external glue injection device.

[0046] It also includes a drive assembly for driving the molding module 9 to move closer to or further away from the cold mold 3 within the mounting cavity 8.

[0047] See Figure 4 During molding, the driving component moves the molding module 9 toward the cold mold 3, so that the four molding cavities 11 combine with the outer wall of the cold mold 3 to form a closed cavity, which is the cavity for molding the hot melt glue frame 22. Then, the molten hot melt glue is injected into the cavity through the glue injection channel 15 until it is full. After cooling, it forms a solid hot melt glue frame 22. The hot melt glue frame 22 covers the outer wall of the cold mold 3. Therefore, when the driving component moves the molding module 9 away from the cold mold 3, it will demold from the hot melt glue frame 22 and cover the cold mold 3, thus completing the molding of the hot melt glue frame 22.

[0048] Then, the downward movement of the pusher ring 4 will push the hot melt adhesive frame 22 downward to complete the filling process.

[0049] It is worth mentioning that each molding module 9 has a certain number of vent holes on its top so that the air in the molding cavity 11 can be discharged, ensuring that the hot melt adhesive is filled.

[0050] In one preferred embodiment, the driving assembly includes four slide bars 12 that are slidably mounted on the inner walls of four mounting cavities 8, and the slide bars 12 are rotatably connected to the corresponding molding modules 9 by connecting rods 10. Hollow cavities 17 are opened inside the four corners of the hot press mold 5, and a transmission wheel 18 is rotatably mounted inside each hollow cavity 17. A transmission belt 19 wound on the transmission wheel 18 is connected between two adjacent slide bars 12, and a through hole is provided between the mounting cavity 8 and the hollow cavity 17 for the transmission belt 19 to pass through. A servo motor for driving one of the transmission wheels 18 to rotate in both directions is also installed inside the hot press mold 5.

[0051] For details on the driver components, please refer to [link / reference]. Figure 4 The rotation of the transmission wheel 18 driven by the servo motor can drive the transmission belt 19 to convey in one direction, thereby driving the four slide bars 12 to slide in one direction. Under the connection of the connecting rod 10, the molding module 9 is driven to complete the mold closing and demolding process.

[0052] In particular, since the clamping force between the molding cavity 11 and the hot melt adhesive frame 22 is relatively large during the demolding process, the drive wheel 18 and the drive belt 19 are preferably driven by a sprocket and chain. This can avoid slippage and ensure the demolding process.

[0053] In one preferred embodiment, after the molding module 9 is retracted into the mounting cavity 8, its outer plane is flush with the inner wall of the hot press mold 5, so as to avoid the molding module 9 from blocking the hot melt adhesive frame 22 and also avoid damaging it.

[0054] In one preferred embodiment, the hot press mold 5 has an annular injection channel 14 inside near the heating component. The injection channel 14 is connected to the glue inlet channel 15 through a hot melt glue pipe 16, and the glue outlet of the glue inlet channel 15 is located on the bottom inner wall of the molding cavity 11.

[0055] To ensure the integrity of the hot melt adhesive frame 22 after demolding, the glue outlet is set on the bottom inner wall of the molding cavity 11. This way, the hot melt adhesive in the glue inlet channel 15 can be cut off from the hot melt adhesive frame 22 under the action of shearing force, without affecting the integrity of the hot melt adhesive frame 22.

[0056] It is also worth mentioning that since the glue injection channel 14, glue inlet channel 15 and hot melt glue tube 16 are all located close to the bottom, when the heating component is heated, the hot melt glue inside can be melted into a liquid state through heat conduction, so as to facilitate the next glue injection molding.

[0057] In one preferred embodiment, the heating element includes an electric heating pipe 13 that is annularly laid in the lower interior of the hot press mold 5, and the electric heating pipe 13 is electrically connected and controlled by the control device 6.

[0058] The heating element uses an electric heating pipe 13 for heating, which makes it easier to control the temperature and also makes the heating more uniform, thereby improving the preheating and pressing effect on the silicone frame 21.

[0059] In one preferred embodiment, the cold mold 3 has an annular cooling pipe 7 inside, and the cooling pipe 7 is connected to an external cold circulation pipe.

[0060] Preferably, the height of the cooling range of the cooling pipe 7 is from the bottom surface to the position of the molding cavity 11.

[0061] By setting up cooling pipes 7, the temperature of cold mold 3 can be kept at a low temperature. On the one hand, this can accelerate the cooling and molding of hot melt adhesive frame 22. On the other hand, during the preheating and pressing process of silicone frame 21, the inner side of hot melt adhesive frame 22 can be kept in a solid shape to maintain the shape of the inner frame of hot melt adhesive frame 22, which facilitates the subsequent insertion of aerogel felt 23.

[0062] In one preferred embodiment, at least four sets of glue inlet channels 15 and hot melt glue tubes 16 are provided, and the glue outlets of the four sets of glue inlet channels 15 are respectively located at the center of the four molding cavities 11.

[0063] By setting up 4 sets of glue inlet channels 15, the glue inlet speed can be increased, and the filling in the molding cavity 11 can be more repeated and uniform. This improves the quality of the hot melt glue frame 22 and also provides a guarantee for the subsequent hot pressing molding of the thermal insulation cotton component.

[0064] The standard parts used in this embodiment can be purchased directly from the market, while the non-standard structural parts described in the specification and drawings can be processed directly based on existing technical knowledge without any doubt. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly device for thermal insulation cotton, comprising an assembly platform (1) and a control device (6), characterized in that, It also includes an assembly assembly mounted below the control device (6), the assembly assembly comprising: The cold mold (3), the pusher ring (4) and the hot press mold (5) are sequentially nested from the inside out, and the three are driven vertically by telescopic cylinders respectively; The molding component is set in the gap between the cold mold (3) and the hot press mold (5), and the molding component is used to form the hot melt glue frame (22). When the pusher ring (4) moves down, it can press the formed hot melt glue frame (22) into the gap between the lower silicone frame (21) and the cold mold (3). The heating element is located inside the hot press mold (5) near the bottom and is used to heat the lower surface of the hot press mold (5).

2. The automatic assembly equipment for thermal insulation cotton according to claim 1, characterized in that: It also includes an automatic feeder for inserting aerogel felt (23) into the inner frame of hot melt adhesive frame (22) and a hot press molding machine for hot pressing.

3. The automatic assembly equipment for thermal insulation cotton according to claim 1, characterized in that: The molding assembly includes four mounting cavities (8) respectively opened on the inner walls of the four sides of the hot press mold (5), and a molding module (9) is horizontally slidably installed on the inner wall of the mounting cavity (8). The molding module (9) has a molding cavity (11) opened near the outer wall of the cold mold (3), and the four molding cavities (11) and the outer wall of the cold mold (3) can be combined to form a sealed cavity. The molding module (9) also has an injection channel (15) for injecting hot melt adhesive into the molding cavity (11), and the injection channel (15) is connected to an external glue injection device. It also includes a drive assembly for driving the molding module (9) to move closer to or further away from the cold mold (3) within the mounting cavity (8).

4. The automatic assembly equipment for thermal insulation cotton according to claim 3, characterized in that: The drive assembly includes four slide bars (12) that are slidably installed on the inner walls of four mounting cavities (8), and the slide bars (12) are rotatably connected to the corresponding molding modules (9) by connecting rods (10). Hollow cavities (17) are opened in the interior of the four corners of the hot press mold (5), and a transmission wheel (18) is rotatably installed in the interior of each hollow cavity (17). A transmission belt (19) wrapped around the transmission wheel (18) is connected between two adjacent slide bars (12), and a through hole is provided between the mounting cavity (8) and the hollow cavity (17) for the transmission belt (19) to pass through. A servo motor for driving one of the transmission wheels (18) to rotate in both directions is also installed inside the hot press mold (5).

5. The automatic assembly equipment for thermal insulation cotton according to claim 4, characterized in that: After the molding module (9) is retracted into the mounting cavity (8), its outer plane is flush with the inner wall of the hot press mold (5).

6. The automatic assembly equipment for thermal insulation cotton according to claim 3, characterized in that: The hot press mold (5) has an annular injection channel (14) inside near the heating component. The injection channel (14) and the glue inlet channel (15) are connected by a hot melt glue tube (16), and the glue outlet of the glue inlet channel (15) is located on the bottom inner wall of the molding cavity (11).

7. The automatic assembly equipment for thermal insulation cotton according to claim 1, characterized in that: The heating component includes an electric heating pipe (13) that is laid in a ring around the interior of the hot press mold (5) near the bottom, and the electric heating pipe (13) is electrically connected and controlled by a control device (6).

8. The automatic assembly equipment for thermal insulation cotton according to any one of claims 3-6, characterized in that: The cold mold (3) has an annular cooling pipe (7) inside, and the cooling pipe (7) is connected to an external cold circulation pipe.

9. The automatic assembly equipment for thermal insulation cotton according to claim 8, characterized in that: The cooling range of the cooling pipe (7) extends from the bottom surface to the position of the molding cavity (11).

10. The automatic assembly equipment for thermal insulation cotton according to claim 6, characterized in that: The glue inlet channel (15) and hot melt glue tube (16) are provided in at least 4 sets, and the glue outlet of the four sets of glue inlet channels (15) are respectively located at the center of the four molding cavities (11).

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