Forming die bottom heating device

Abstract

The utility model relates to the technical field of carbon product vibration molding equipment, in particular to a molding die bottom heating device, which is characterized in that a graphene heating film is connected to the bottom surface of a vibration table, a reflecting film is connected to the bottom surface, deviating from the vibration table, of the graphene heating film, and a heat insulation plate is connected to the bottom surface, deviating from the vibration table, of the reflecting film; two sets of supporting seats are fixedly connected to the bottom face of the vibration table, a pressing plate is jointly connected between the two sets of supporting seats, a screw hole is formed in the pressing plate, a puller bolt is connected into the screw hole, and the front end of the puller bolt penetrates through the screw hole and then abuts against the bottom face, away from the reflecting film, of the heat insulation plate. The device solves the problem that in the prior art, the temperature of paste at the bottom of a mold is rapidly reduced, the compactness of the bottom of a carbon brick is improved, the problem that the bottom of the carbon brick is loose is solved, and the device is easy to manufacture and install, reasonable in layout, ingenious in structural design and high in applicability, effectively improves the product quality and has popularization and practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon product vibration molding equipment, in particular to a bottom heating device for a molding die. Background Art

[0002] Blast furnace carbon bricks require not only excellent carbon brick indicators, but also a dense, homogeneous, and defect-free appearance. The quality of the carbon brick molding process directly determines the appearance quality after processing.

[0003] Existing molds for carbon brick products are heated with thermal oil. A driving carriage carrying the mold moves back and forth beneath the discharge port under the control of an automatic control system, ensuring even distribution of the paste within the mold. Because the vibrating table moves with the driving carriage, a thermal oil heating tube cannot be designed. Consequently, the surface of the vibrating table remains unheated, resulting in a low temperature at the bottom of the mold. After the carbon bricks are vibrated and formed, they are transported by the driving carriage to the ejection station, where they are then ejected by a push plate. Due to the time lag between the product ejection and the carriage's return to the bottom of the mold, coupled with factors such as the production season, the steel vibrating table cools down rapidly during the ejection process, resulting in a low mold bottom temperature and a severely loose bottom portion of the molded product. Therefore, the technical challenge of modifying the vibrating table's bottom heating without significantly changing the existing mold heating method and increasing the surface temperature of the steel vibrating table remains. Utility Model Content

[0004] The purpose of the utility model is to provide a bottom heating device for a forming mold, so as to solve the problem that the paste cools down quickly in the mold and the bottom of the carbon brick product is loose due to the lack of heating on the vibration table.

[0005] In order to solve the above-mentioned technical problems, the utility model provides a bottom heating device for a forming mold, which includes a vibration table and an airbag support. The airbag support is fixedly connected to the bottom surface of the vibration table. A graphene heating film is connected to the bottom surface of the vibration table. A reflective film is connected to the bottom surface of the graphene heating film away from the vibration table. A heat insulation plate is connected to the bottom surface of the reflective film away from the vibration table. Two groups of support seats are fixedly connected to the bottom surface of the vibration table. The two groups of support seats are symmetrical. The two groups of support seats are respectively arranged on the left and right outer sides of the graphene heating film. A clamping plate is commonly connected between the two groups of support seats. A screw hole is provided on the clamping plate. A tightening bolt is connected in the screw hole. The front end of the tightening bolt passes through the screw hole and is connected to the bottom surface of the heat insulation plate away from the reflective film.

[0006] Furthermore, the front end of the tightening bolt is connected to a top block, a column is provided on the bottom surface of the top block, a blind hole is provided on the front end surface of the tightening bolt, the column is rotatably connected in the blind hole, and the top surface of the top block is connected to the bottom surface of the insulation board.

[0007] Furthermore, a spring is connected between the top block and the pressing plate.

[0008] Furthermore, the top block is provided with a groove II, which is located outside the column, and the top surface of the clamping plate is provided with a groove I, which is connected to the screw hole, and the two ends of the spring are respectively connected in groove I and groove II.

[0009] Furthermore, there are multiple screw holes on the clamping plate, and the multiple screw holes are linearly evenly distributed along the length direction of the clamping plate. There are multiple grooves I on the top surface of the clamping plate, and the multiple grooves I are connected to the multiple screw holes one by one. A tightening bolt is connected in each screw hole, and a top block is connected to the front end of each tightening bolt. A groove II is provided on each top block, and a spring is connected between each groove II and each groove I. Multiple top blocks, tightening bolts and springs are arranged between two groups of support seats.

[0010] As an embodiment of the present invention, each group of support seats described in the present invention includes multiple support seats, and the multiple support seats of each group of support seats are linearly evenly distributed along the width direction of the vibration table. The top surface of each support seat is fixedly connected to the bottom surface of the vibration table. Each support seat is provided with a rectangular groove, and the rectangular grooves of two symmetrical support seats in the two groups of support seats are coaxial. There are multiple clamping plates, and the number of multiple clamping plates is the same as the number of multiple support seats in each group of support seats. The two ends of each clamping plate are respectively connected to the rectangular grooves of the two symmetrical support seats.

[0011] In this embodiment, two ends of each pressing plate are connected to two supporting seats.

[0012] Furthermore, each of the clamping plates is provided with connecting parts at both ends, the thickness of the clamping plate is D1, the thickness of the connecting part is D2, the inner height of the rectangular groove is b1, the inner width of the rectangular groove is a1, 2×D2=D1, and the width of the connecting part is <a1, D1<b1.

[0013] As another embodiment of the present invention, each group of support seats described in the present invention includes a support seat, the top surfaces of the two support seats are fixedly connected to the bottom surface of the vibration table, each support seat is provided with a rectangular groove, the rectangular grooves of the two support seats are coaxial, and there are multiple clamping plates, and the multiple clamping plates are linearly evenly distributed along the width direction of the vibration table, and the two ends of each clamping plate are respectively connected to the two rectangular grooves.

[0014] In this embodiment, both ends of the plurality of pressing plates are commonly connected to the two support seats.

[0015] Furthermore, each of the clamping plates is provided with connecting parts at both ends, the thickness of the clamping plate is D1, the thickness of the connecting part is D2, the inner height of the rectangular groove is b2, the inner width of the rectangular groove is a2, 2×D2=D1, and the sum of the widths of multiple connecting parts is <a1, D1<b2.

[0016] Furthermore, a temperature measuring thermocouple is fixedly connected to the bottom surface of the vibration table, the temperature measuring thermocouple is electrically connected to a temperature controller, and the temperature controller is electrically connected to the graphene heating film.

[0017] The beneficial effects of the present invention are as follows: the present invention arranges a graphene heating film at the bottom of the vibration table so that the temperature of the bottom of the mold is changed from the normal temperature of the prior art to a temperature exceeding the softening point of asphalt. The heating temperature is preset before production and is continuously maintained within the set temperature range, which thoroughly solves the problem of no heating of the vibration molding vibration table, effectively improves the heating temperature of the mold bottom plate, reduces the temperature loss of the paste in the process of falling into the mold, helps to improve the quality of the bottom of the carbon brick, solves the problem of rapid cooling of the paste at the bottom of the mold in the prior art, improves the density of the bottom of the carbon brick, and solves the problem of looseness of the bottom of the carbon brick. The device of the present invention is simple to manufacture and install, has a reasonable layout, ingenious structural design, strong applicability, effectively improves product quality, and has promotional and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the local structure of the top block of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the tightening bolt of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the top block of the utility model;

[0022] Figure 5 This is a schematic diagram of the mechanism of the pressing plate of the utility model;

[0023] Figure 6 This is a schematic cross-sectional structural diagram of the first embodiment of the present invention viewed at the top block;

[0024] Figure 7 This is a schematic structural diagram of the support base of the first embodiment of the present utility model;

[0025] Figure 8 This is a schematic cross-sectional structural diagram of the second embodiment of the present invention viewed at the top block;

[0026] Figure 9 This is a structural diagram of the support base of the second embodiment of the present utility model.

[0027] In the figure: 1. Vibration table; 2. Airbag support; 3. Graphene heating film; 4. Reflective film; 5. Heat insulation board; 6. Support base; 601. Rectangular groove; 7. Pressing plate; 701. Screw hole; 702. Groove I; 703. Connecting part; 8. Top block; 801. Column; 802. Groove II; 9. Jacking bolt; 901. Blind hole; 10. Spring; 11. Temperature measuring thermocouple; 12. Thermostat. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 7 As shown, embodiment 1 of a bottom heating device of a forming mold of the present invention includes a vibration table 1 and an airbag support 2, the airbag support 2 is fixedly connected to the bottom surface of the vibration table 1, a graphene heating film 3 is connected to the bottom surface of the vibration table 1, a reflective film 4 is connected to the bottom surface of the graphene heating film 3 away from the vibration table 1, a heat insulation plate 5 is connected to the bottom surface of the reflective film 4 away from the vibration table 1, two groups of support seats 6 are fixedly connected to the bottom surface of the vibration table 1, the two groups of support seats 6 are symmetrical, the two groups of support seats 6 are respectively arranged on the left and right outer sides of the graphene heating film 3, a clamping plate 7 is commonly connected between the two groups of support seats 6, a screw hole 701 is provided on the clamping plate 7, a tightening bolt 9 is connected in the screw hole 701, and the front end of the tightening bolt 9 passes through the screw hole 701 and is connected to the bottom surface of the heat insulation plate 5 away from the reflective film 4. A temperature measuring thermocouple 11 is fixedly connected to the bottom surface of the vibration table 1 , the temperature measuring thermocouple 11 is electrically connected to a temperature controller 12 , and the temperature controller 12 is electrically connected to the graphene heating film 3 .

[0029] The front end of the jacking bolt 9 is connected to the top block 8. The bottom surface of the top block 8 is provided with a column 801. The front end of the jacking bolt 9 is provided with a blind hole 901. The column 801 is rotatably connected within the blind hole 901. The top surface of the jacking bolt 8 is connected to the bottom surface of the insulation board 5. A spring 10 is connected between the jacking block 8 and the pressure plate 7. The jacking block 8 is provided with a groove II 802, which is located outside the column 801. The top surface of the pressure plate 7 is provided with a groove I 702, which is connected to the screw hole 701. The two ends of the spring 10 are connected to the groove I 702 and the groove II 802 respectively.

[0030] There are multiple screw holes 701 on the clamping plate 7, and the multiple screw holes 701 are linearly evenly distributed along the length direction of the clamping plate 7. There are multiple grooves Ⅰ702 on the top surface of the clamping plate 7, and the multiple grooves Ⅰ702 are connected one by one with the multiple screw holes 701. Each screw hole 701 is connected with a tightening bolt 9, and the front end of each tightening bolt 9 is connected to a top block 8. Each top block 8 is provided with a groove Ⅱ802, and a spring 10 is connected between each groove Ⅱ802 and each groove Ⅰ702. Multiple top blocks 8, tightening bolts 9 and springs 10 are all arranged between two groups of support seats 6.

[0031] Each group of support seats 6 includes multiple support seats 6, and the multiple support seats 6 of each group of support seats 6 are linearly evenly distributed along the width direction of the vibration table 1. The top surface of each support seat 6 is fixedly connected to the bottom surface of the vibration table 1. Each support seat 6 is provided with a rectangular groove 601. The rectangular grooves 601 of the two symmetrical support seats 6 in the two groups of support seats 6 are coaxial. There are multiple clamping plates 7, and the number of multiple clamping plates 7 is the same as the number of multiple support seats 6 in each group of support seats 6. The two ends of each clamping plate 7 are respectively connected to the rectangular grooves 601 of the two symmetrical support seats 6.

[0032] Each of the clamping plates 7 is provided with connecting parts 703 at both ends. The thickness of the clamping plate 7 is D1, the thickness of the connecting part 703 is D2, the inner height of the rectangular groove 601 is b1, the inner width of the rectangular groove 601 is a1, 2×D2=D1, and the width of the connecting part 703 is <a1, D1<b1.

[0033] The temperature controller 12 controls the heating of the graphene heating film 3 to heat the vibration table 1, and the reflective film 4 prevents the temperature from diffusing to the bottom. The heat insulation board 5 plays the role of heat insulation on the one hand and the role of connecting the graphene heating film 3 and the reflective film 4 on the other hand. By turning the tightening bolt 9, the heat insulation board 5 can be tightened upward, so that the heat insulation board 5 can be connected to the reflective film 4 and fit closely to the bottom of the graphene heating film 3, and the graphene heating film 3 can also be closely fitted to the bottom of the vibration table 1. Since the graphene heating film 3 and the reflective film 4 are relatively soft, if they are not set If the insulation board 5 is directly connected with the tightening bolts 9, there are two problems. On the one hand, the tightening bolts 9 may damage the graphene heating film 3 and the reflective film 4. On the other hand, the tightening bolts 9 provide point contact. Then the graphene heating film 3 and the reflective film 4 at the position where the tightening bolts 9 are not set and the gap position between multiple tightening bolts 9 will sag, thereby affecting the heating effect. The insulation board 5 is not a hard board, and the multi-point connection of the insulation board 5 by the tightening bolts 9 will not cause the insulation board 5 to sag.

[0034] The top block 8 improves the ease of use of the present invention, prevents the tightening bolt 9 from getting stuck with the insulation board 5 when rotating, and at the same time increases the contact area with the insulation board 5. It also prevents the tightening bolt 9 thread from being damaged when the tightening bolt 9 and the insulation board 5 rotate relative to each other.

[0035] The spring 10 plays the role of tightening the ejector block 8 and the pressing plate 7, and the arrangement of the groove II 802 and the groove I 702 prevents the spring 10 from being misplaced.

[0036] The arrangement of multiple screw holes 701 and grooves I 702 on each clamping plate 7 enables each clamping plate 7 to be connected with multiple top blocks 8, multiple tightening bolts 9 and multiple springs 10. Combined with the arrangement of multiple clamping plates 7 in the utility model, multiple top connection structures consisting of top blocks 8, tightening bolts 9 and springs 10 are formed. The top connection positions of the multiple top connection structures to the insulation board 5 are arranged in a matrix, thereby effectively improving the top connection effect of the insulation board 5.

[0037] like Figure 6 As shown, in this embodiment, each group of support seats 6 includes multiple support seats 6, and each connecting part 703 is respectively connected to two support seats 6. When the clamping plate 7 needs to be disassembled, first loosen the tightening bolt 9, and then separate the top block 8, the tightening bolt 9, the spring 10 and the clamping plate 7. After moving the clamping plate 7 upward, the clamping plate 7 can be taken out from the rectangular groove 601.

[0038] Each clamping plate 7 cooperates with two support seats 6. The size of a rectangular groove 601 can be determined by the outer dimensions of the clamping plate 7. In actual use, the support seats 6 can be set at the corresponding positions according to the actual number of clamping plates 7 used.

[0039] The temperature measuring thermocouple 11 is used to measure the heating temperature and control the temperature controller 12 to heat the graphene heating film 3. Generally, the temperature of the vibration table 1 is required to reach 100°C.

[0040] like Figure 8 and Figure 9 As shown, the difference between Example 2 of the present invention and Example 1 is that in Example 2, each group of support seats 6 includes one support seat 6, the top surfaces of the two support seats 6 are fixedly connected to the bottom surface of the vibration table 1, and each support seat 6 is provided with a rectangular groove 601. The rectangular grooves 601 of the two support seats 6 are coaxial, and there are multiple clamping plates 7. The multiple clamping plates 7 are linearly evenly distributed along the width direction of the vibration table 1, and the two ends of each clamping plate 7 are respectively connected to the two rectangular grooves 601.

[0041] Each of the clamping plates 7 is provided with connecting parts 703 at both ends. The thickness of the clamping plate 7 is D1, the thickness of the connecting parts 703 is D2, the inner height of the rectangular groove 601 is b2, the inner width of the rectangular groove 601 is a2, 2×D2=D1, the sum of the widths of multiple connecting parts 703 is <a1, D1 is less than b2.

[0042] In embodiment 2, multiple clamping plates 7 are connected together on two support seats 6. When the clamping plates 7 need to be disassembled, first loosen the tightening bolts 9, then separate the top block 8, the tightening bolts 9, the spring 10 and the clamping plates 7, and then move the clamping plates 7 upward to take them out of the rectangular groove 601.

[0043] In the second embodiment, a plurality of support seats 6 need to be processed, but the size of the rectangular groove 601 needs to be determined according to the outer dimensions and quantity of the pressing plates 7 .

[0044] When the utility model is in use, according to the production arrangement, the mold is heated by heat-conducting oil, the mold and the bottom of the vibration table are in a heated state, the mold temperature is measured to reach 110-120°C, and the temperature of the vibration table bottom plate reaches 100°C. At this time, the asphalt paste has the best flow state, ensuring that the asphalt does not deteriorate in fluidity due to the increase in viscosity due to temperature drop, resulting in a non-densified and loose bottom of the carbon brick. Therefore, after meeting the process requirements, the product quality and performance are the best. It completely solves the problem of no heating of the vibration molding vibration table, greatly improves the heating temperature of the mold bottom plate, reduces the temperature loss of the paste in the process of falling into the mold, and helps to improve the quality of the carbon brick bottom.

Claims

1. A bottom heating device for a forming mold, comprising a vibration table (1) and an airbag support (2), wherein the airbag support (2) is fixedly connected to the bottom surface of the vibration table (1), and is characterized in that: The bottom surface of the vibration table (1) is connected to a graphene heating film (3), the bottom surface of the graphene heating film (3) facing away from the vibration table (1) is connected to a reflective film (4), the bottom surface of the reflective film (4) facing away from the vibration table (1) is connected to a heat insulation plate (5), and two groups of support seats (6) are fixedly connected to the bottom surface of the vibration table (1), the two groups of support seats (6) are symmetrical, and the two groups of support seats (6) are respectively arranged on the left and right outer sides of the graphene heating film (3), and a clamping plate (7) is commonly connected between the two groups of support seats (6), the clamping plate (7) is provided with a screw hole (701), and a tightening bolt (9) is connected in the screw hole (701), and the front end of the tightening bolt (9) passes through the screw hole (701) and is connected to the bottom surface of the heat insulation plate (5) facing away from the reflective film (4).

2. A molding die bottom heating device according to claim 1, characterized in that: The front end of the tightening bolt (9) is connected to a top block (8), a column (801) is provided on the bottom surface of the top block (8), a blind hole (901) is provided on the front end surface of the tightening bolt (9), the column (801) is rotatably connected in the blind hole (901), and the top surface of the top block (8) is connected to the bottom surface of the heat insulation board (5).

3. The bottom heating device of a forming mold according to claim 1, characterized in that: A spring (10) is connected between the top block (8) and the pressing plate (7).

4. A molding die bottom heating device according to claim 3, characterized in that: The top block (8) is provided with a groove II (802), which is provided outside the column (801), and the top surface of the pressing plate (7) is provided with a groove I (702), which is connected to the screw hole (701), and the two ends of the spring (10) are respectively connected in the groove I (702) and the groove II (802).

5. A molding die bottom heating device according to claim 4, characterized in that: The screw holes (701) are provided in plurality on the pressing plate (7), and the plurality of screw holes (701) are linearly and evenly distributed along the length direction of the pressing plate (7). The grooves I (702) are provided in plurality on the top surface of the pressing plate (7), and the plurality of grooves I (702) are connected one by one with the plurality of screw holes (701). A tightening bolt (9) is connected in each screw hole (701), and a top block (8) is connected to the front end of each tightening bolt (9). A groove II (802) is provided on each top block (8), and a spring (10) is connected between each groove II (802) and each groove I (702). The plurality of top blocks (8), the tightening bolts (9) and the spring (10) are all provided between the two groups of support seats (6).

6. A molding die bottom heating device according to claim 5, characterized in that: Each group of support seats (6) includes a plurality of support seats (6), and the plurality of support seats (6) of each group of support seats (6) are linearly and evenly distributed along the width direction of the vibration table (1). The top surface of each support seat (6) is fixedly connected to the bottom surface of the vibration table (1), and each support seat (6) is provided with a rectangular groove (601). The rectangular grooves (601) of the two symmetrical support seats (6) in the two groups of support seats (6) are coaxial. A plurality of clamping plates (7) are provided, and the number of the plurality of clamping plates (7) is the same as the number of the plurality of support seats (6) in each group of support seats (6). The two ends of each clamping plate (7) are respectively connected to the rectangular grooves (601) of the two symmetrical support seats (6).

7. A molding die bottom heating device according to claim 6, characterized in that: Each of the pressing plates (7) is provided with connecting portions (703) at both ends. The thickness of the pressing plate (7) is D1, the thickness of the connecting portion (703) is D2, the inner height of the rectangular groove (601) is b1, the inner width of the rectangular groove (601) is a1, 2×D2=D1, and the width of the connecting portion (703) is <a1, D1<b1.

8. The bottom heating device of a forming mold according to claim 5, characterized in that: Each group of support seats (6) includes a support seat (6), the top surfaces of the two support seats (6) are fixedly connected to the bottom surface of the vibration table (1), each support seat (6) is provided with a rectangular groove (601), the rectangular grooves (601) of the two support seats (6) are coaxial, a plurality of clamping plates (7) are provided, and the plurality of clamping plates (7) are linearly evenly distributed along the width direction of the vibration table (1), and the two ends of each clamping plate (7) are respectively connected to the two rectangular grooves (601).

9. The bottom heating device of a forming mold according to claim 8, characterized in that: Each of the pressing plates (7) is provided with connecting portions (703) at both ends. The thickness of the pressing plate (7) is D1, the thickness of the connecting portion (703) is D2, the inner height of the rectangular groove (601) is b2, the inner width of the rectangular groove (601) is a2, 2×D2=D1, and the sum of the widths of the multiple connecting portions (703) is <a1, D1<b2.

10. A molding die bottom heating device according to any one of claims 1 to 9, characterized in that: A temperature measuring thermocouple (11) is fixedly connected to the bottom surface of the vibration table (1), the temperature measuring thermocouple (11) is electrically connected to a temperature controller (12), and the temperature controller (12) is electrically connected to the graphene heating film (3).

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