Fireproof door core plate filler pressing device
By introducing a demolding mechanism into the fireproof door core board filling pressing device, the scraper separates from the inner wall of the mold and cleans the residual filling, thus solving the problem of difficult demolding of fireproof door core boards and achieving high-quality demolding and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, fireproof door core panels are prone to the adhesion of fillers during the demolding process, resulting in surface damage and mold residue, which affects production quality.
A fireproof door core board filling pressing device including a demolding mechanism was designed. The second cylinder pushes the moving sleeve to move the moving plate and scraper upward. The sharp corner of the scraper separates the fireproof door core board from the inner wall of the mold and scrapes off the residual filling, ensuring smooth demolding.
This effectively reduces adhesion to the surface of fireproof door core panels and residues inside the mold, improving product quality and ensuring the continuity and stability of subsequent production.
Smart Images

Figure CN224116369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door manufacturing, and in particular to a fire door core board filling pressing device. Background Technology
[0002] According to the patent document with announcement number CN221416935U, the patent document describes a method where a cylinder drives a pressure plate to extrude the fireproof door core panel inside the frame. Then, a first motor drives a first reverse screw to move a first movable block and a second movable block. Subsequently, the first and second pressure rollers roll and extrude on the surface of the pressure plate. After extrusion molding, a second motor drives a first reciprocating screw to move a third movable block upward, which in turn moves the frame upward. The extruded fireproof door core panel separates from the frame under the pressure of the pressure plate. Finally, the formed fireproof door core panel is pushed to move and discharge on the base surface.
[0003] The patent document states that during the demolding process of the extruded fireproof door core board, the chemical composition or physical properties of the filler may cause it to adhere to the inner surface of the frame, making demolding difficult and damaging the surface of the fireproof door core board. Furthermore, after demolding, filler may remain inside the frame, which may affect the production quality of subsequent fireproof door core boards if not cleaned in time. Utility Model Content
[0004] The purpose of this invention is to provide a fireproof door core board filling pressing device to solve the above-mentioned problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] A fireproof door core board filling pressing device includes a frame, a mold fixed on the top of the frame, and a demolding mechanism.
[0007] The demolding mechanism includes a first push plate located at the bottom of the inner side of the mold. A guide post is fixed to the bottom of the first push plate, and a movable plate is sleeved on the outer side of the bottom of the guide post. Second push plates are slidably connected to both sides of the movable plate. Scrapers are hinged to the side of the two second push plates away from the movable plate. A movable sleeve is fixed to the bottom of the movable plate, and a second cylinder is fixedly installed on the movable sleeve.
[0008] Preferably, a support frame is provided above the mold, the support frame is fixedly connected to the top of the machine frame, four first cylinders are fixedly installed on the top of the machine frame, and pressure plates are fixed to the telescopic ends of the four first cylinders.
[0009] Preferably, a sliding plate is fixed on both sides of the movable plate, and a groove that cooperates with the sliding plate is opened on the side of the two second push plates near the movable plate.
[0010] Preferably, the two scrapers are located between the mold and the first push plate on both sides, and the tops of the two scrapers are pointed.
[0011] Preferably, both scrapers have rotating rods fixed to their bottoms, and both second push plates have rotating grooves on the side away from the moving plate that cooperate with the rotating rods.
[0012] Preferably, the movable plate has a circular hole for the guide post to pass through, and the top of the movable sleeve has a cylindrical groove.
[0013] Preferably, the mold has an inverted trapezoidal groove, and the frame has a placement groove for placing the demolding mechanism.
[0014] The beneficial effects compared with the existing technology are as follows: The second cylinder pushes the moving sleeve upward, which in turn drives the moving plate, two second push plates and two scrapers to move upward. During this process, the two scrapers separate the two sides of the pressed fireproof door core board from the inner wall of the mold, reducing the adhesion of filler and mold, improving the surface quality of the fireproof door core board. At the same time, the sharp corners of the two scrapers scrape off the residual filler on the inner wall of the mold, cleaning the residual filler in time and ensuring the production quality of the subsequent fireproof door core board. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of the fireproof door core board filling pressing device described in this utility model;
[0017] Figure 2 This is a first-state sectional view of the fireproof door core board filling pressing device described in this utility model;
[0018] Figure 3 This is a second-state sectional view of the fireproof door core board filling pressing device described in this utility model;
[0019] Figure 4 This is a third-state sectional view of the fireproof door core board filling pressing device described in this utility model;
[0020] Figure 5 This is a schematic diagram of the demolding mechanism of the fireproof door core board filling pressing device described in this utility model;
[0021] Figure 6 This is a schematic diagram of the moving plate and moving sleeve structure of the fireproof door core board filling pressing device described in this utility model;
[0022] Figure 7This is a schematic diagram of the second pusher plate structure of the fireproof door core board filling pressing device described in this utility model;
[0023] Figure 8 This is a schematic diagram of the scraper structure of the fireproof door core board filling pressing device described in this utility model.
[0024] The annotations in the attached figures are explained as follows:
[0025] 1. Frame; 2. Mold; 3. Support frame; 4. First cylinder; 5. Pressure plate; 6. Demolding mechanism; 601. First push plate; 602. Guide pillar; 603. Moving plate; 604. Second push plate; 605. Scraper; 606. Moving sleeve; 607. Second cylinder. Detailed Implementation
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] like Figures 1-8 As shown, a fireproof door core board filling pressing device includes a frame 1, a mold 2 fixed on the top of the frame 1, and a demolding mechanism 6.
[0029] In this embodiment: the demolding mechanism 6 includes a first push plate 601, which is located at the bottom of the inner side of the mold 2. A guide post 602 is fixed to the bottom of the first push plate 601. A movable plate 603 is sleeved on the outer side of the bottom of the guide post 602. Second push plates 604 are slidably connected to both sides of the movable plate 603. Slide plates are fixed to both sides of the movable plate 603. A groove for cooperating with the slide plate is opened on the side of each of the two second push plates 604 near the movable plate 603. A scraper 605 is hinged to the side of each of the two second push plates 604 away from the movable plate 603. A rotating rod is fixed to the bottom of each of the two scrapers 605. A rotating groove for cooperating with the rotating rod is opened on the side of each of the two second push plates 604 away from the movable plate 603. The two scrapers 605 are respectively located between the mold 2 and the two sides of the first push plate 601. The tops of the two scrapers 605 are both pointed. A movable sleeve 606 is fixed to the bottom of the movable plate 603. A second cylinder 607 is fixedly installed. The moving plate 603 has a circular hole for the guide post 602 to pass through. The top of the moving sleeve 606 has a cylindrical groove. The second cylinder 607 pushes the moving sleeve 606 upward, which in turn drives the moving plate 603, the two second push plates 604 and the two scrapers 605 to move upward. The guide post 602 enters the moving sleeve 606 until the two second push plates 604 contact the first push plate 601. During this process, the two scrapers 605 separate the two sides of the pressed fireproof door core board from the inner wall of the mold 2. At the same time, the sharp corners of the two scrapers 605 scrape off the residual filler on the inner wall of the mold 2. The second cylinder 607 continues to push the moving sleeve 606 upward, so that the first push plate 601 and the two scrapers 605 drive the fireproof door core board away from the mold 2. The two scrapers 605 rotate in the direction away from the fireproof door core board to remove the demolded fireproof door core board.
[0030] In this embodiment: A support frame 3 is provided above the mold 2. The support frame 3 is fixedly connected to the top of the frame 1. Four first cylinders 4 are fixedly installed on the top of the frame 1. Pressure plates 5 are fixed to the telescopic ends of the four first cylinders 4. An inverted trapezoidal groove is opened in the mold 2. A placement groove for placing the demolding mechanism 6 is opened in the frame 1. The pressure plates 5 are moved downward by the four first cylinders 4 to press the fireproof door core board filling in the mold 2. The mold 2 with the inverted trapezoidal groove facilitates the demolding of the pressed fireproof door core board.
[0031] Working principle: Fireproof door core board filler is poured into mold 2. Four first cylinders 4 drive the pressure plate 5 downward to press the fireproof door core board filler in mold 2. After pressing, the four first cylinders 4 drive the pressure plate 5 upward to reset. The second cylinder 607 pushes the moving sleeve 606 upward, which in turn drives the moving plate 603, two second push plates 604 and two scrapers 605 upward. The guide post 602 enters the cylindrical groove of the moving sleeve 606 through the round hole. The two scrapers 605 drive the corresponding second push plates 604 to move away from the moving plate 603. The two sliders move in the corresponding grooves until the two second push plates 604 contact the first push plate 601. During this process, the two scrapers 605 separate the two sides of the pressed fireproof door core board from the inner wall of mold 2. The sharp corners of the two scrapers 605 scrape away the residual filler on the inner wall of the mold 2. The second cylinder 607 continues to push the moving sleeve 606 upward, causing the first push plate 601 and the two scrapers 605 to move the fireproof door core board away from the mold 2. The two scrapers 605 rotate away from the fireproof door core board, and the two rotating rods rotate away from the fireproof door core board in the rotating groove. Finally, the demolded fireproof door core board is removed. The second cylinder 607 pulls the moving sleeve 606 downward to reset. The first push plate 601 and the two scrapers 605 move downward into the mold 2. The two scrapers 605 contact the inner wall of the mold 2, and the two rotating rods rotate towards the moving plate 603 in the rotating groove, causing the two scrapers 605 to reset. After the demolding mechanism 6 resets, the next fireproof door core board filler pressing is performed.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A fireproof door core board filling pressing device, comprising a frame (1), wherein a mold (2) is fixed on the top of the frame (1), characterized in that: It also includes a demolding mechanism (6); The demolding mechanism (6) includes a first push plate (601), which is located at the bottom of the inner side of the mold (2). A guide post (602) is fixed at the bottom of the first push plate (601). A movable plate (603) is sleeved on the outer side of the bottom of the guide post (602). A second push plate (604) is slidably connected to both sides of the movable plate (603). A scraper (605) is hinged to the side of the two second push plates (604) away from the movable plate (603). A movable sleeve (606) is fixed at the bottom of the movable plate (603). A second cylinder (607) is fixedly installed on the movable sleeve (606).
2. The fireproof door core board filler pressing device according to claim 1, characterized in that: A support frame (3) is provided above the mold (2). The support frame (3) is fixedly connected to the top of the frame (1). Four first cylinders (4) are fixedly installed on the top of the frame (1). Pressure plates (5) are fixed to the telescopic ends of the four first cylinders (4).
3. The fireproof door core board filling pressing device according to claim 1, characterized in that: The movable plate (603) has a sliding plate fixed on both sides, and the two second push plates (604) have a groove on the side near the movable plate (603) that cooperates with the sliding plate.
4. The fireproof door core board filler pressing device according to claim 1, characterized in that: The two scrapers (605) are located between the mold (2) and the first push plate (601) on both sides, and the tops of the two scrapers (605) are pointed.
5. The fireproof door core board filling pressing device according to claim 1, characterized in that: Both scrapers (605) have a rotating rod fixed to their bottoms, and both second push plates (604) have a rotating groove on the side away from the moving plate (603) that cooperates with the rotating rod.
6. The fireproof door core board filling pressing device according to claim 1, characterized in that: The movable plate (603) has a circular hole for the guide post (602) to pass through, and the top of the movable sleeve (606) has a cylindrical groove.
7. The fireproof door core board filler pressing device according to claim 1, characterized in that: The mold (2) has an inverted trapezoidal groove, and the frame (1) has a placement groove for placing the demolding mechanism (6).
Citation Information
Patent Citations
Fireproof door core plate filling production device
CN221416935U