Glass fiber needle mat hot press

Abstract

The utility model discloses a kind of glass fibre needle felt hot presses, including frame body, the lower end of frame body is horizontally provided with second heating roller and first heating roller sequentially arranged in up and down, and both are close to setting;Two ends of second heating roller and first heating roller are vertically installed on support column, the outside of support column is equipped with two adjusting plates, the rotating shaft of second heating roller and first heating roller is fixed on its corresponding adjusting plate after passing through support column through bearing seat;The adjusting plate fixed on first heating roller is fixed on support column, the adjusting plate connected on second heating roller is slidably installed on support column;Two adjusting plates on support column are tightened by tensioning device.Two sides of the utility model can be heated to glass fibre needle felt, make it more evenly heated, promote the fusion of bonding ester and needle felt, improve hot-pressing effect;Meanwhile, it can also adjust pressing force, and cylinder cold-pressing device prevents needle felt from deforming, and plays the role of setting.

Description

Technical Field

[0001] This utility model relates to a hot press machine for glass fiber needle-punched felt, belonging to the field of glass fiber needle-punched felt hot pressing technology. Background Technology

[0002] Fiberglass needle-punched felt is a nonwoven fabric made primarily of fiberglass through processes such as needle punching and hot pressing. It not only possesses the advantages of fiberglass fabrics, such as high temperature resistance, corrosion resistance, dimensional stability, minimal elongation and shrinkage, and high strength, but also has high porosity in its felt layer, resulting in low resistance to gas filtration. It also has strong fire resistance and insulation properties, making it widely used in thermal insulation fields such as household appliances, machinery, and industrial pipelines.

[0003] The hot-pressing process for glass fiber needle-punched mat is a key step in its production, primarily used to improve the product's density, adhesion, and tensile strength. Through hot pressing, internal defects such as bridging, delamination, and porosity, which are prone to occur in glass fiber sandwich components during engineering manufacturing, can also be effectively reduced, thus improving product reliability.

[0004] However, the hot pressing process in the existing technology has defects. In the hot pressing process, the heating is generally carried out by roller drive and heating roller. However, during the heating process, the glass fiber needled felt can only be pressed against the heating roller on one side, resulting in uneven heating on both sides. This affects the fusion of the adhesive ester and the needled felt, and ultimately affects the hot pressing effect. In addition, the hot pressing process is short and the effect is not ideal because it is only done once.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] To address the shortcomings of the prior art, this utility model provides a glass fiber needle-punched felt hot press, which can heat both sides of the glass fiber needle-punched felt to make it heat more evenly, promote the fusion of the bonding ester and the needle-punched felt, and improve the hot pressing effect; at the same time, it can also adjust the pressing force and use a cylinder cold pressing device to prevent the needle-punched felt from deforming, thus playing a shaping role.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: A glass fiber needle-punched felt hot press includes a frame, and a second heating roller and a first heating roller are horizontally arranged in a vertical sequence at the lower end of the frame, and the two are arranged close together. The two ends of the second heating roller and the first heating roller are vertically mounted on the support column. Two adjusting plates are provided on the outside of the support column. The rotating shafts of the second heating roller and the first heating roller pass through the support column and are fixed to their corresponding adjusting plates by bearing seats. An adjusting plate connected to the first heating roller is fixed to a support column, and an adjusting plate connected to the second heating roller is slidably mounted on the support column. Two adjusting plates on the support column are tightened by a tensioning device, so that the second heating roller and the first heating roller are pressed together, heating and compressing the glass fiber needle-punched felt sandwiched between them.

[0008] Furthermore, a sliding hole is provided vertically at the pivot of the second heating roller on the support column.

[0009] Furthermore, the glass fiber needle-punched felt is inserted from the underside of the first heating roller, conveyed upwards, and exits between the second heating roller and the first heating roller. It then winds upwards toward one side of the second heating roller and around the second side of the second heating roller.

[0010] Furthermore, the tensioning device includes a long bolt and a nut, with a connecting plate fixed at each end of the adjusting plate. The long bolt passes through the two connecting plates at the same end of the two adjusting plates, and the nut is installed on the screw end of the long bolt. A first spring is provided between the nut and the connecting plate.

[0011] Furthermore, the upper end of the second heating roller is provided with two pressure rollers, which are respectively placed on both sides of the upper end of the second heating roller and are close to the surface of the second heating roller.

[0012] Furthermore, the shafts of the two pressure rollers are mounted on the connecting arms, the upper ends of the connecting arms are hinged to the frame, and each of the two connecting arms has a tension spring on its inner side facing each other. One end of the tension spring is hung on the connecting arm, and the other end is hung on the support column.

[0013] Furthermore, it also includes a cold pressing device, which is disposed on the side from which the glass fiber needle-punched felt exits from the second heating roller, and the cold pressing device includes an upper cold pressing roller and a lower cold pressing roller that are arranged vertically opposite each other.

[0014] The lower cold press roller is rotatably mounted on the upper end of the vertical column, and the upper cold press roller is rotatably mounted on the mounting frame. A mounting shaft is inserted inside the upper end of the mounting frame, and a second spring is provided between the mounting shaft and the mounting frame.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: After passing through the lower side of the first heating roller, it is conveyed upward and exits between the second heating roller and the first heating roller. Then, it is wound upward to one side of the second heating roller and output after winding around the second side of the second heating roller. When the glass fiber needle-punched felt is wound between the second heating roller and the first heating roller, both sides of the glass fiber needle-punched felt can be heated, making it more uniformly heated, promoting the fusion of the bonding ester and the needle-punched felt, and improving the hot pressing effect. Moreover, the clamping force between the second heating roller and the first heating roller can be adjusted by the tensioning device.

[0016] Two pressure rollers are provided at the upper end of the second heating roller. The two pressure rollers are positioned on both sides of the upper end of the second heating roller and are close to the surface of the second heating roller. The hot pressing effect is improved by repeated hot pressing.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0019] In the diagram, 1-frame, 2-support column, 3-first heating roller, 4-second heating roller, 5-adjusting plate, 6-connecting plate, 7-long bolt, 8-nut, 9-first spring, 10-bearing seat, 11-sliding hole, 12-pressure roller, 13-connecting arm, 14-tension spring, 15-guide roller, 16-lower cold pressure roller, 17-upper cold pressure roller, 18-mounting frame, 19-second spring, 20-mounting shaft. Detailed Implementation

[0020] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0021] like Figure 1-2 As shown, this utility model provides a glass fiber needle-punched felt hot press, including a frame 1, with a second heating roller 4 and a first heating roller 3 arranged vertically in sequence at the lower end of the frame 1, and the two are arranged close together. The two ends of the second heating roller 4 and the first heating roller 3 are vertically mounted on the support column 2. Two adjusting plates 5 are provided on the outside of the support column 2. The rotating shafts of the second heating roller 4 and the first heating roller 3 pass through the support column 2 and are fixed on their corresponding adjusting plates 5 by bearing seats 10. The adjusting plate 5 connected to the first heating roller 3 is fixed on the support column 2, and the adjusting plate 5 connected to the second heating roller 4 can be slidably installed on the support column 2; Two adjusting plates 5 on the support column 2 are tightened by a tensioning device, so that the second heating roller 4 and the first heating roller 3 are pressed together, heating and compressing the glass fiber needle-punched felt sandwiched between them.

[0022] A sliding hole 11 is provided vertically at the pivot of the second heating roller 4 on the support column 2, so that the second heating roller 4 can slide up and down.

[0023] The glass fiber needle-punched felt is inserted from the lower side of the first heating roller 3 and then conveyed upward and exited between the second heating roller 4 and the first heating roller 3. It is then wound upward to one side of the second heating roller 4 and wrapped around the second side of the second heating roller 4.

[0024] The tensioning device includes a long bolt 7 and a nut 8. A connecting plate 6 is fixed at each end of the adjusting plate 5. The long bolt 7 is inserted through the two connecting plates 6 at the same end of the two adjusting plates 5. The nut 8 is installed on the screw end of the long bolt 7. A first spring 9 is provided between the nut 8 and the connecting plate 6.

[0025] The upper end of the second heating roller 4 is provided with two pressure rollers 12, which are respectively placed on both sides of the upper end of the second heating roller 4 and are close to the surface of the second heating roller 4.

[0026] The rotating shafts of the two pressure rollers 12 are mounted on the connecting arm 13. The upper end of the connecting arm 13 is hinged to the frame 1. Each of the two connecting arms 13 has a tension spring 14 on its inner side facing each other. One end of the tension spring 14 is hung on the connecting arm 13, and the other end is hung on the support column 2.

[0027] The present invention also includes a cold pressing device, which is disposed on the side from which the glass fiber needle-punched felt is output from the second heating roller 4. The cold pressing device includes an upper cold pressing roller 17 and a lower cold pressing roller 16 that are arranged vertically opposite each other.

[0028] The lower cold press roller 16 is rotatably mounted on the upper end of the vertical column, and the upper cold press roller 17 is rotatably mounted on the mounting frame 18. The mounting frame 18 has a mounting shaft 20 inserted inside its upper end, and a second spring 19 is provided between the mounting shaft 20 and the mounting frame 18.

[0029] The specific working principle of this utility model: The fiberglass needle-punched felt is fed into the lower end of the first heating roller 3 through the guide roller 15. After passing through the lower side of the first heating roller 3, it is conveyed upwards and exits between the second heating roller 4 and the first heating roller 3. Then, it is wound upwards towards one side of the second heating roller 4 and output after winding around the second side of the second heating roller 4. The second heating roller 4 and the first heating roller 3 have built-in heaters to heat them. When the fiberglass needle-punched felt is wound between the second heating roller 4 and the first heating roller 3, both sides of the fiberglass needle-punched felt can be heated, making the heating more uniform, promoting the fusion of the bonding ester and the needle-punched felt, and improving the hot pressing effect. Moreover, the clamping force between the second heating roller 4 and the first heating roller 3 can be adjusted by the tensioning device.

[0030] The upper end of the second heating roller 4 is equipped with two pressure rollers 12, which heat-press the needle-punched felt again.

[0031] After the needle-punched felt is initially cooled by hot pressing, it is then cold-pressed by a cold pressing device to prevent deformation and to set its shape.

[0032] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A hot press for glass fiber needle-punched felt, characterized in that: Includes a frame (1), and the lower end of the frame (1) is horizontally provided with a second heating roller (4) and a first heating roller (3) arranged in sequence from top to bottom, and the two are arranged close together; The two ends of the second heating roller (4) and the first heating roller (3) are vertically mounted on the support column (2). Two adjusting plates (5) are provided on the outside of the support column (2). The rotating shafts of the second heating roller (4) and the first heating roller (3) pass through the support column (2) and are fixed on their corresponding adjusting plates (5) by bearing seats (10). The adjusting plate (5) connected to the first heating roller (3) is fixed on the support column (2), and the adjusting plate (5) connected to the second heating roller (4) is slidably mounted on the support column (2); Two adjusting plates (5) on the support column (2) are tightened by a tensioning device, so that the second heating roller (4) and the first heating roller (3) are pressed together, heating and squeezing the glass fiber needle-punched felt sandwiched between them.

2. The glass fiber needle-punched felt hot press as described in claim 1, characterized in that: A sliding hole (11) is provided vertically at the pivot of the second heating roller (4) on the support column (2).

3. The glass fiber needle-punched felt hot press as described in claim 1, characterized in that: The glass fiber needle-punched felt is inserted from the lower side of the first heating roller (3) and then conveyed upward and exited between the second heating roller (4) and the first heating roller (3). It is then wound upward on one side of the second heating roller (4) and wrapped around the second side of the second heating roller (4).

4. The glass fiber needle-punched felt hot press as described in claim 3, characterized in that: The tensioning device includes a long bolt (7) and a nut (8). A connecting plate (6) is fixed at each end of the adjusting plate (5). The long bolt (7) is inserted through the two connecting plates (6) at the same end of the two adjusting plates (5). The nut (8) is installed at the screw end of the long bolt (7). A first spring (9) is provided between the nut (8) and the connecting plate (6).

5. A glass fiber needle-punched felt hot press as described in claim 3, characterized in that: The upper end of the second heating roller (4) is provided with two pressure rollers (12), which are respectively placed on both sides of the upper end of the second heating roller (4) and the two pressure rollers (12) are close to the surface of the second heating roller (4).

6. The glass fiber needle-punched felt hot press as described in claim 5, characterized in that: The shafts of the two pressure rollers (12) are mounted on the connecting arm (13). The upper end of the connecting arm (13) is hinged to the frame (1). Each of the two connecting arms (13) has a tension spring (14) on its inner side facing each other. One end of the tension spring (14) is hung on the connecting arm (13), and the other end is hung on the support column (2).

7. The glass fiber needle-punched felt hot press as described in claim 1, characterized in that: It also includes a cold pressing device, which is located on the side from which the glass fiber needle-punched felt outputs from the second heating roller (4). The cold pressing device includes an upper cold pressing roller (17) and a lower cold pressing roller (16) that are positioned opposite each other.

8. The glass fiber needle-punched felt hot press as described in claim 7, characterized in that: The lower cold press roller (16) is rotatably mounted on the upper end of the vertical column, and the upper cold press roller (17) is rotatably mounted on the mounting frame (18). The mounting frame (18) has a mounting shaft (20) inserted inside the upper end, and a second spring (19) is provided between the mounting shaft (20) and the mounting frame (18).

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