Cold pressing gluing device for wooden heat insulation fireproof door

Abstract

The utility model relates to the technical field of fireproof door processing, and discloses a cold-pressing gluing device for a wooden heat-insulation fireproof door, which is characterized in that a groove matched with a fireproof door frame in size is formed in the upper surface of a lower die, so that the fireproof door frame can be positioned in the cold-pressing process, and the fireproof door frame is prevented from being damaged. Therefore, the shape and the size of the fireproof door frame filled with the flame-retardant material are prevented from being changed in the cold pressing process. In addition, through holes are formed in the bottoms of the grooves, flame-retardant materials are injected into the filling cavity of the fireproof door through the through holes, and the situation that air is mixed into the flame-retardant materials to form gaps, and the filling effect is affected can be avoided. And meanwhile, flame-retardant materials can be injected into the multiple fireproof door filling cavities through the through holes at the same time, so that the flame-retardant materials in the fireproof door filling cavities can be uniformly diffused, the filling uniformity of the flame-retardant materials is ensured, and the flame-retardant materials are prevented from sputtering. The two steps of filling and cold pressing can be continuously carried out, equipment does not need to be replaced, and therefore the production quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of fire door processing, specifically to a cold pressing and gluing device for wooden insulated fire doors. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and thermal insulation within a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire-resistant compartments, evacuation stairwells, vertical shafts, and other similar locations. Wooden fire doors are doors whose door frames, door leaf frames, and door leaf panels are made of wood or wood products, and whose fire resistance rating meets the requirements of the "Code for Fire Protection Design of High-Rise Civil Buildings" (GB50045-95).

[0003] The manufacturing process of wooden fire doors includes multiple steps such as material selection and drying, flame retardant treatment, processing and shaping, filling and cold pressing, and surface treatment. In traditional manufacturing processes, wooden fire doors undergo filling and cold pressing operations, which increases the number of steps in the entire process and reduces work efficiency. In particular, the lack of support and protection during the cold pressing process can cause the core of the wooden fire door to change in shape and size under the cold pressing action.

[0004] To solve the above technical problems, Chinese Patent (Publication No. CN202985692U) discloses a cold pressing and gluing device for door core panels, which includes an upper mold and a lower mold. The lower mold is an open box with a mold hole at the bottom. The protruding part formed by the raised edges around the door core panel workpiece to be glued is adapted to the mold hole. Pressure strips are provided on the four sides of the top plate of the upper mold. The size of the top plate of the upper mold is adapted to the inner cavity size of the lower mold. The upper mold can move in and out of the inner cavity of the lower mold. The pressure strips around the top plate of the upper mold are adapted to the four periphery edges of the door core panel workpiece to be glued.

[0005] The above technical solution, by setting up a device that matches the core panel, can ensure that the size and shape of the core panel do not change during cold pressing. However, the above technical solution only optimizes the cold pressing and gluing step. For the production of wooden fire doors, the filling and cold pressing steps still need to be operated separately in the manufacturing process. In particular, the filling step, after the wooden frame of the fire door is completed, a partition board is set inside the wooden frame as needed, so that an independent cavity is formed between the wooden frame and the partition board, which constitutes the filling cavity of the fire door. Then, flame-retardant material is filled into the filling cavity of the fire door to improve the fire resistance performance of the fire door and extend the fire resistance time.

[0006] However, in existing technologies, flame-retardant material is poured into the fire door's filling cavity from top to bottom. During the pouring process, the flame-retardant material falls from above, and due to gravity, it generates a significant impact force, causing it to splatter in the surrounding area and resulting in waste. Simultaneously, air is introduced as the flame-retardant material flows into the filling cavity. This air is trapped inside the material due to gravity, creating voids and affecting the filling effect. Furthermore, wooden fire doors typically contain multiple filling cavities. Due to gravity, the flame-retardant material initially concentrates in one cavity before flowing to others. This filling method may lead to insufficient filling in other cavities, resulting in uneven filling, affecting the overall performance of the fire door, and reducing its fire-resistant effect. Utility Model Content

[0007] The present invention aims to provide a cold pressing and gluing device for wooden fireproof doors, which can avoid uneven filling of fire-retardant materials when filling wooden fireproof doors, and prevent the wooden fireproof doors from deforming during cold pressing, thereby improving production quality and efficiency.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] 1) A cold pressing and gluing device for wooden insulated fire doors, comprising an upper mold and a lower mold corresponding to the position of the upper mold, wherein the upper surface of the lower mold is provided with a groove matching the size of the wooden frame of the fire door, and the bottom of the groove is provided with a through hole corresponding to the filling cavity of the fire door, wherein a one-way valve is provided in the through hole, and in use, the lower surface of the upper mold can fit against the upper surface of the groove.

[0010] This invention features a groove on the upper surface of the lower mold that matches the dimensions of the fire door's wooden frame. This allows the wooden frame to be positioned during cold pressing, preventing changes in shape and size during the process of filling the fire door with flame-retardant material. Furthermore, a through-hole is provided at the bottom of the groove, allowing flame-retardant material to be injected into the fire door's filling cavity. This prevents air from entering the flame-retardant material and creating voids that could affect the filling effect. Simultaneously, multiple fire door filling cavities can be filled with flame-retardant material through the through-hole, ensuring uniform diffusion and preventing splashing.

[0011] A one-way valve is installed inside the through-hole to prevent backflow of the flame-retardant material. The lower surface of the upper mold fits snugly against the upper surface of the groove, allowing for even distribution of pressure during the pressing process. This ensures that the flame-retardant material fills every corner of the fire door's filling cavity evenly, preventing uneven filling. Furthermore, the filling and cold pressing steps can be performed continuously without changing equipment, thus improving production quality and efficiency.

[0012] 2) A cold-pressing bonding device for wooden insulated fire doors according to 1), wherein:

[0013] It also includes a mold table, on which several guide pillars are evenly distributed along the circumferential direction of the lower mold, and the upper mold passes through the guide pillars and can move up and down along its height direction.

[0014] This invention, by incorporating guide pillars, ensures stable operation of the upper mold during upward or downward movement, while maintaining a precise relative position between the upper and lower molds. This prevents dimensional deviations or surface defects caused by unstable upper mold operation, thereby improving product quality. During cold pressing, the lower surface of the upper mold adheres to the upper surface of the groove, allowing for even distribution of pressing force. This ensures that the flame-retardant material evenly fills all corners of the fire door's filling cavity during pressing, preventing uneven filling.

[0015] 3) A cold-pressing bonding device for wooden insulated fire doors according to 2), wherein:

[0016] The upper surface of the lower mold is set as a horizontal line to detect whether the dimensions of the fire door frame match.

[0017] In this invention, the upper surface of the lower mold is horizontally positioned, providing a reference standard for the dimensions of the wooden insulated fireproof door frame. During actual use, the fireproof door frame is placed within the groove of the lower mold. If the thickness of the fireproof door frame exceeds the horizontal line of the upper surface of the lower mold, the dimensions of the fireproof door frame do not match the groove, and the dimensions do not meet the standard, requiring adjustment. This configuration can be used to check the accuracy of the dimensions of the wooden insulated fireproof door frame, avoiding defective products due to dimensional issues, thereby improving production efficiency and product quality.

[0018] 4) A cold-pressing bonding device for wooden insulated fire doors according to 2), wherein:

[0019] The lower mold is placed on the mold platform. A suction pump is connected to the bottom of the groove through a first flexible hose passing through the mold platform. A one-way valve is located inside the first flexible hose and close to the lower mold. The suction pump is connected to a storage tank through a second flexible hose.

[0020] In this invention, a storage hopper is used to store flame-retardant materials. The hopper is connected to a through-hole via a suction pump. Activating the pump extracts the flame-retardant material from the hopper. After passing through a one-way valve in the first flexible hose, the material is transported to the filling cavity of the fire door, thus preventing uneven filling and improving the fire resistance of the wooden insulated fire door. The one-way valve ensures the flame-retardant material flows in only one direction, preventing backflow.

[0021] 5) A cold-pressing bonding device for wooden insulated fire doors according to 4), wherein:

[0022] The mold platform is provided with a support frame on its lower surface, and the suction pump is placed inside the support frame.

[0023] In this invention, a suction pump is placed inside a support frame. The storage tank is connected to a through hole via the suction pump. Activating the suction pump extracts the flame-retardant material from the storage tank. The flame-retardant material, after passing through a one-way valve in the first flexible hose, is transported to the filling cavity of the fire door, thus preventing uneven filling and improving the fire resistance of the wooden insulated fire door. The one-way valve ensures that the flame-retardant material flows in only one direction, preventing backflow.

[0024] Compared with the prior art, the present invention also has the following technical effects:

[0025] This invention features a groove on the upper surface of the lower mold that matches the dimensions of the fire door frame. This allows the fire door frame to be positioned during cold pressing, preventing changes in shape and size during the cold pressing process. Furthermore, a through-hole is provided at the bottom of the groove. Injecting the fire door filling cavity through this through-hole prevents air from entering the fire door filling cavity and creating voids that could affect the filling effect. Simultaneously, multiple fire door filling cavities can be filled with fire door filling material through the through-hole, ensuring uniform diffusion of the fire door filling material and preventing splashing.

[0026] A one-way valve is installed inside the through-hole to prevent backflow of the flame-retardant material. The lower surface of the upper mold fits snugly against the upper surface of the groove, allowing for even distribution of pressure during the pressing process. This ensures that the flame-retardant material fills every corner of the fire door's filling cavity evenly, preventing uneven filling. Furthermore, the filling and cold pressing steps can be performed continuously without changing equipment, thus improving production quality and efficiency. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a cold-pressing bonding device for wooden insulated fire doors according to the present invention.

[0028] Figure 2 for Figure 1Sectional view at point AA.

[0029] Figure 3 This is a top view of the lower mold in a cold-pressing bonding device for wooden insulated fireproof doors according to the present invention. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The reference numerals in the accompanying drawings include: upper mold 1, lower mold 2, groove 3, through hole 4, one-way valve 5, mold platform 6, guide post 7, suction pump 8, storage tank 9, and support frame 10.

[0032] See the example. Figure 1 and Figure 2 As shown, in this embodiment, a cold pressing and gluing device for wooden insulated fire doors includes an upper mold 1 and a lower mold 2 corresponding to the position of the upper mold 1. The upper surface of the lower mold 2 is provided with a groove 3 that matches the size of the fire door frame. The bottom of the groove 3 is provided with a through hole 4 corresponding to the filling cavity of the fire door. A one-way valve 5 is provided in the through hole 4. When in use, the lower surface of the upper mold 1 can fit against the upper surface of the groove 3.

[0033] In this embodiment, a groove 3 matching the size of the fire door frame is provided on the upper surface of the lower mold 2. This allows the fire door frame to be positioned during cold pressing, thus preventing changes in shape and size of the fire door frame filled with flame-retardant material during the cold pressing process. Furthermore, a through hole 4 is provided at the bottom of the groove 3. Injecting flame-retardant material into the fire door filling cavity through the through hole 4 prevents air from mixing into the flame-retardant material and creating voids that would affect the filling effect. Simultaneously, multiple fire door filling cavities can be filled with flame-retardant material through the through hole 4, allowing the flame-retardant material to diffuse evenly within the filling cavity, ensuring uniform filling and preventing splashing of the flame-retardant material.

[0034] A one-way valve 5 is installed inside the through hole 4 to prevent backflow of the flame-retardant material. The lower surface of the upper mold 1 can fit against the upper surface of the groove 3, allowing the pressing force to be evenly transmitted during the pressing process. This ensures that the flame-retardant material can evenly fill all corners of the fire door filling cavity during pressing, preventing uneven filling. In addition, the filling and cold pressing steps can be performed continuously without changing equipment, thereby improving production quality and efficiency.

[0035] It also includes a mold platform 6, which has several guide pillars 7 evenly distributed along the circumferential direction of the lower mold. The upper mold 1 passes through the guide pillars 7 and can move up and down along its height direction.

[0036] This embodiment, by setting guide pillars 7, ensures stable operation of the upper mold 1 during upward or downward movement, while maintaining a precise relative position between the upper mold 1 and the lower mold 2. This avoids dimensional deviations or surface defects caused by unstable operation of the upper mold 1, thereby improving product quality. During cold pressing, the lower surface of the upper mold 1 can fit against the upper surface of the groove 3, allowing the pressing force to be evenly transmitted. This ensures that the flame-retardant material can evenly fill all corners of the fire door filling cavity during pressing, preventing uneven filling of the flame-retardant material.

[0037] Secondly, the upper surface of the lower mold 2 is set as a horizontal line to check whether the fire door size matches.

[0038] In this embodiment, the upper surface of the lower mold 2 is horizontally positioned, providing a reference standard for the dimensions of the wooden insulated fire door frame. In actual use, the fire door frame is placed within the groove 3 of the lower mold. If the thickness of the fire door frame exceeds the horizontal line of the upper surface of the lower mold, the dimensions of the fire door frame do not match the groove 3, and the dimensions do not meet the standard, requiring adjustment. This configuration can be used to check the accuracy of the dimensions of the wooden insulated fire door frame, avoiding defective products due to dimensional issues, thereby improving production efficiency and product quality.

[0039] The lower mold 2 is placed on the mold platform 6. The through hole 4 at the bottom of the groove passes through the mold platform 6 via a first flexible hose and is connected to a suction pump 8. A one-way valve 5 is located inside the first flexible hose and close to the lower mold 2. The suction pump 8 is connected to a storage tank 9 via a second flexible hose.

[0040] In this embodiment, the storage bin 9 is used to store flame-retardant material. The storage bin 9 is connected to the through hole 4 via a suction pump 8. When the suction pump 8 is started, the flame-retardant material in the storage bin 9 is extracted. After passing through the one-way valve 5 in the first hose, the flame-retardant material is transported to the filling cavity of the fire door. The one-way valve 5 ensures that the flame-retardant material can only flow in one direction, preventing backflow. This avoids uneven filling of the flame-retardant material and improves the fire resistance of the wooden insulated fire door.

[0041] In addition, a support frame 10 is provided on the lower surface of the mold table 6, and the suction pump 8 is placed inside the support frame 10.

[0042] In this embodiment, the suction pump 8 is placed inside the support frame 10. The storage tank 9 is connected to the through hole 4 via the suction pump 8. When the suction pump 8 is started, the flame-retardant material in the storage tank 9 is extracted. After passing through the one-way valve 5 in the first hose, the flame-retardant material is transported to the filling cavity of the fire door. The one-way valve 5 ensures that the flame-retardant material can only flow in one direction, preventing backflow. This avoids uneven filling of the flame-retardant material and improves the fire resistance of the wooden insulated fire door.

[0043] In this embodiment, a groove 3 matching the size of the fire door frame is provided on the upper surface of the lower mold 2. This allows the fire door frame to be positioned during cold pressing, thus preventing changes in shape and size of the fire door frame filled with flame-retardant material during the cold pressing process. Furthermore, a through hole 4 is provided at the bottom of the groove 3. Injecting flame-retardant material into the fire door filling cavity through the through hole 4 prevents air from mixing into the flame-retardant material and creating voids that would affect the filling effect. Simultaneously, multiple fire door filling cavities can be filled with flame-retardant material through the through hole 4, allowing the flame-retardant material to diffuse evenly within the filling cavity, ensuring uniform filling and preventing splashing of the flame-retardant material.

[0044] A one-way valve 5 is installed inside the through hole 4 to prevent backflow of the flame-retardant material. The lower surface of the upper mold 1 can fit against the upper surface of the groove 3, allowing the pressing force to be evenly transmitted during the pressing process. This ensures that the flame-retardant material can evenly fill all corners of the fire door filling cavity during pressing, preventing uneven filling. In addition, the filling and cold pressing steps can be performed continuously without changing equipment, thereby improving production quality and efficiency.

[0045] The above are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cold-pressing bonding device for wooden insulated fire doors, characterized in that, It includes an upper mold and a lower mold corresponding to the position of the upper mold. The upper surface of the lower mold has a groove that matches the size of the wooden frame of the fire door. The bottom of the groove has a through hole corresponding to the filling cavity of the fire door. A one-way valve is installed in the through hole. When in use, the lower surface of the upper mold can fit against the upper surface of the groove.

2. The cold-pressing and gluing device for wooden insulated fireproof doors according to claim 1, characterized in that: It also includes a mold table, on which several guide pillars are evenly distributed along the circumferential direction of the lower mold, and the upper mold passes through the guide pillars and can move up and down along its height direction.

3. A cold-pressing bonding device for wooden insulated fire doors according to claim 2, characterized in that: The upper surface of the lower mold is set as a horizontal line to detect whether the size of the fire door's wooden frame matches.

4. A cold-pressing bonding device for wooden insulated fireproof doors according to claim 2, characterized in that: The lower mold is placed on the mold platform. A suction pump is connected to the bottom of the groove through a first flexible hose passing through the mold platform. A one-way valve is located inside the first flexible hose and close to the lower mold. The suction pump is connected to a storage tank through a second flexible hose.

5. A cold-pressing bonding device for wooden insulated fireproof doors according to claim 4, characterized in that: The mold platform is provided with a support frame on its lower surface, and the suction pump is placed inside the support frame.

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