A superplastic hot forming machine tool heating apparatus

Abstract

This invention relates to the field of superplastic thermoforming machine technology, and proposes a heating device for a superplastic thermoforming machine tool, including a base; a lower heating seat fixedly connected to the top of the base, with a lower mold fixedly connected to the top of the lower heating seat by bolts; a fixed frame fixedly connected to the top of the base, with the output end of a pneumatic telescopic rod passing through the upper end of the fixed frame and fixedly connected to a heat insulation cover, the bottom end of the heat insulation cover fixedly connected to an upper heating seat, and the bottom end of the upper heating seat fixedly connected to an upper mold by bolts; a heating element is provided inside the heating groove; a heat insulation cover is provided at the top of the base, with a heat insulation door fixedly connected to the front of the heat insulation cover by hinges; the heat insulation cover, heat insulation cover, and heat insulation door provide heat insulation and shielding for the upper mold and the area around the upper heating seat, thereby effectively reducing the diffusion and loss of external heat, making the heat more concentrated, and improving its practicality.

Description

Technical Field

[0001] This invention relates to the field of superplastic thermoforming machine technology, and more specifically to a heating device for a superplastic thermoforming machine tool. Background Technology

[0002] Superplastic thermoforming machines are equipment that use high temperature and high pressure to process and mold thermoplastic plastics. They are mainly used to achieve precision molding of plastics and have the characteristics of high precision, high speed, high surface quality and high complexity. Therefore, they are widely used in various fields such as aerospace, automobile manufacturing and medical devices. The heating equipment is an important component of superplastic thermoforming machine tools, and its heating effect largely determines the subsequent production efficiency and quality.

[0003] A search revealed an existing patent (publication number: CN212603214U) disclosing a heating device for a plastic molding machine, comprising a top plate and a bottom plate. The bottom plate is located at the lower end of the top plate. An upper mold is welded to the bottom of the top plate, and a lower mold is welded to the top of the bottom plate. Silicone rubber heating elements are bonded to the bottom surface of the top plate and the top surface of the bottom plate using polyurethane environmentally friendly adhesive. A reinforcing plate is provided on one side between the top plate and the bottom plate. The outer surfaces of both the top plate and the bottom plate are coated with an antioxidant and anti-corrosion coating. A self-regulating heating cable A is fitted around the upper mold, and a self-regulating heating cable B is fitted around the lower mold. This invention is highly effective, simple to operate, durable, and meets operational requirements, making it suitable for widespread application.

[0004] However, in the above solution, although heating can be carried out from multiple directions, there is no insulation around the mold. As a result, some of the heat generated by the heating element and the self-regulating heat tracing cable will dissipate to the surroundings, affecting the heat utilization effect and reducing the overall heating efficiency to a certain extent, which leads to inconvenience in its use.

[0005] In view of this, the present invention proposes a heating device for a superplastic thermoforming machine tool. Summary of the Invention

[0006] This invention proposes a heating device for a superplastic thermoforming machine tool, which solves the problem of inconvenient heat preservation in related technologies.

[0007] The technical solution of the present invention is as follows: A heating device for a superplastic thermoforming machine tool includes a base; a lower heating seat fixedly connected to the top of the base, the top of which is fixedly connected to a lower mold by bolts; a fixed frame fixedly connected to the top of the base, a pneumatic telescopic rod fixedly connected at the middle position of the top of the fixed frame, the output end of which passes through the upper end of the fixed frame and is fixedly connected to a heat insulation cover, the bottom end of which is fixedly connected to an upper heating seat, the bottom end of which is fixedly connected to an upper mold by bolts; heating grooves formed inside the upper and lower heating seats, the heating grooves containing heating elements; a positioning component assembled inside the heating grooves, the positioning component being used to quickly assemble and disassemble the heating elements; a heat insulation cover set at the top of the base, the front of which is fixedly connected to a heat insulation door by hinges; and an installation component assembled on the base, the installation component being used to assemble and disassemble the heat insulation cover.

[0008] The mounting assembly includes: symmetrical slots symmetrically formed at the top of the base, and a fixing groove formed inside the base below the slots; mounting springs symmetrically fixedly connected to the bottom wall of the fixing groove, with a mounting block extending into the slot fixedly connected to the top of the mounting spring, and a pull rod extending to the outside of the base fixedly connected to one end of the mounting block; and a locking block symmetrically fixedly connected to the bottom of the insulation cover.

[0009] Preferably, the card block and the card slot form an engaging structure, and the card block and the card slot are convex in shape.

[0010] Preferably, the pull rod is U-shaped and is used to synchronously drive the two mounting blocks to slide up and down.

[0011] Preferably, the inner wall of the fixing groove is provided with a sliding groove, and the two sides of the mounting block are fixedly connected with sliders that slide and cooperate with the inside of the sliding groove.

[0012] Preferably, the heat insulation cover is U-shaped, and the cross-sectional area of ​​the heat insulation cover is larger than the cross-sectional area of ​​the space formed by the heat insulation cover and the heat insulation door.

[0013] Preferably, heating wires are fixedly connected at equal intervals to the inner walls of the heat insulation cover and the heat insulation door, and the heating wires are used to heat the periphery of the upper mold and the lower mold.

[0014] Preferably, the positioning component includes: a through groove formed on one side of the inner wall of the heating tank; positioning grooves symmetrically formed on the inner wall of the through groove; a positioning spring fixedly connected to the inner wall of the positioning groove, one end of the positioning spring being fixedly connected to a sliding block, one end of the sliding block being fixedly connected to a sliding column extending into the interior of the heating tank, one end of the sliding column being fixedly connected to a movable bracket; a connecting rod fixedly connected to one end of the two movable brackets; and a fixed bracket fixedly connected to the other side of the inner wall of the heating tank.

[0015] Preferably, the fixed bracket and the movable bracket are C-shaped, and the fixed bracket and the movable bracket are used for engaging and installing the heating element on both sides.

[0016] Preferably, the sliding block and the interior of the positioning groove form a sliding structure, and the positioning groove and the sliding block are cross-shaped.

[0017] Preferably, the height inside the through groove is greater than the height of the movable card seat, and the depth inside the through groove is less than the thickness of the movable card seat.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. In this invention, after the upper and lower molds are closed, the heat insulation cover will be placed on the top of the heat insulation cover, thereby forming a closed space through the heat insulation cover, heat insulation cover and heat insulation door to prevent heat leakage. At the same time, the heating wire and heating element are activated to facilitate comprehensive heating of the upper and lower molds and improve the corresponding heating effect. Meanwhile, the heat insulation cover and heat insulation door can be removed from the top of the base using the installation components to facilitate the maintenance of the heat insulation cover, heat insulation door and heating wire, or the disassembly and assembly of the lower mold and the disassembly and assembly of the heating element inside the lower heating base, thereby improving its practicality.

[0020] 2. In this invention, the elastic force of the positioning spring is used to allow the movable bracket to slide into or out of the through groove. After sliding into the through groove, the heating element can be disassembled from the fixed bracket and the movable bracket. After sliding out, the heating element can be fixed by engaging and installing on both sides. This allows for quick disassembly and assembly of the heating element, facilitating its disassembly, maintenance, or replacement, and improving its practicality. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the heat insulation cover after an explosion, according to the present invention.

[0025] Figure 4 This is a partial cross-sectional exploded view of the lower heating seat of the present invention;

[0026] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0027] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B.

[0028] In the diagram: 1. Pneumatic telescopic rod; 2. Fixing frame; 3. Insulation cover; 4. Insulation hood; 5. Insulation door body; 6. Base; 7. Upper mold; 8. Upper heating seat; 9. Mounting assembly; 901. Locking block; 902. Pull rod; 903. Mounting block; 904. Locking groove; 905. Sliding block; 906. Mounting spring; 907. Fixing groove; 908. Sliding groove; 10. Heating wire; 11. Lower heating seat; 12. Lower mold; 13. Positioning assembly; 1301. Connecting rod; 1302. Fixing seat; 1303. Positioning groove; 1304. Positioning spring; 1305. Sliding block; 1306. Sliding column; 1307. Movable seat; 1308. Through groove; 14. Heating element; 15. Heating groove. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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] A preferred embodiment of the superplastic thermoforming machine tool heating device provided by the present invention is as follows: Figures 1 to 6The image shows a heating device for a superplastic thermoforming machine tool, comprising a base 6; a lower heating seat 11 fixedly connected to the top of the base 6, with a lower mold 12 fixedly connected to the top of the lower heating seat 11 by bolts; a fixing frame 2 fixedly connected to the top of the base 6, with a pneumatic telescopic rod 1 fixedly connected at the middle position of the top of the fixing frame 2, the output end of the pneumatic telescopic rod 1 passing through the upper end of the fixing frame 2 and fixedly connected to a heat insulation cover 3, the bottom end of the heat insulation cover 3 fixedly connected to an upper heating seat 8, and the bottom end of the upper heating seat 8 fixedly connected to an upper mold 7 by bolts; a heating groove 15 formed inside the upper heating seat 8 and the lower heating seat 11, with a heating element 14 disposed inside the heating groove 15; a positioning component 13 assembled inside the heating groove 15, used to achieve quick assembly and disassembly of the heating element 14; a heat insulation cover 4 disposed at the top of the base 6, with a heat insulation door 5 fixedly connected to the front of the heat insulation cover 4 by a hinge; and an installation component 9 assembled on the base 6, used to achieve assembly and disassembly of the heat insulation cover 4.

[0032] The mounting component 9 includes: a slot 904 symmetrically formed at the top of the base 6, and a fixing groove 907 formed inside the base 6 below the slot 904; a mounting spring 906 symmetrically fixedly connected to the bottom wall of the fixing groove 907, and a mounting block 903 extending into the slot 904 fixedly connected to the top of the mounting spring 906, and a pull rod 902 extending to the outside of the base 6 fixedly connected to one end of the mounting block 903; and a locking block 901 symmetrically fixedly connected to the bottom of the insulation cover 4.

[0033] In this embodiment, by moving the lever 902, the mounting block 903 is driven to slide down until it is fully inserted into the fixing groove 907, and then the heat insulation cover 4 is pushed to disassemble. During installation, the lever 902 is first moved to make the mounting block 903 slide down, and then the locking block 901 is locked into the slot 904. The elastic force of the mounting spring 906 is used to make the mounting block 903 slide up to limit one end of the locking block 901, thereby improving the firmness and stability of the locking block 901 and the slot 904.

[0034] In a further preferred embodiment of the present invention, the card block 901 and the card slot 904 form an engaging structure, and the card block 901 and the card slot 904 are convex in shape.

[0035] In this embodiment, the engagement between the convex locking block 901 and the slot 904 improves the firmness and stability of the initial engagement installation of the heat insulation cover 4 and the top of the base 6.

[0036] In a further preferred embodiment of the present invention, the pull rod 902 is U-shaped and is used to synchronously drive the two mounting blocks 903 to slide up and down.

[0037] In a further preferred embodiment of the present invention, a sliding groove 908 is provided on the inner wall of the fixing groove 907, and sliders 905 that slide and cooperate with the inside of the sliding groove 908 are fixedly connected to both sides of the mounting block 903.

[0038] In this embodiment, the sliding of the slider 905 inside the groove 908 is used to improve the smoothness of the up-and-down sliding of the mounting block 903.

[0039] In a further preferred embodiment of the present invention, the heat insulation cover 4 is U-shaped, and the cross-sectional area of ​​the heat insulation cover 3 is larger than the cross-sectional area of ​​the space formed by the heat insulation cover 4 and the heat insulation door 5.

[0040] In this embodiment, the use of a large-area insulation cover 3 facilitates the shielding and sealing of the top of the space formed by the insulation cover 4 and the insulation door 5.

[0041] In a further preferred embodiment of the present invention, heating wires 10 are fixedly connected at equal intervals to the inner walls of the heat insulation cover 4 and the heat insulation door 5. The heating wires 10 are used to heat the periphery of the upper mold 7 and the lower mold 12.

[0042] Example 2

[0043] Based on Example 1, a preferred embodiment of the superplastic thermoforming machine tool heating device provided by the present invention is as follows: Figures 1 to 6 As shown: The positioning component 13 includes: a through groove 1308 formed on one side of the inner wall of the heating tank 15; positioning grooves 1303 symmetrically formed on the inner wall of the through groove 1308; a positioning spring 1304 fixedly connected to the inner wall of the positioning groove 1303, a sliding block 1305 fixedly connected to one end of the positioning spring 1304, a sliding column 1306 extending into the interior of the heating tank 15 fixedly connected to one end of the sliding block 1305, and a movable bracket 1307 fixedly connected to one end of the sliding column 1306; a connecting rod 1301 fixedly connected to one end of the two movable brackets 1307; and a fixed bracket 1302 fixedly connected to the other side of the inner wall of the heating tank 15.

[0044] In this embodiment, by moving the connecting rod 1301, the two movable brackets 1307 are slid, causing the sliding column 1306 and the sliding block 1305 to slide and compress the positioning spring 1304 until the movable bracket 1307 slides into the through groove 1308. At this time, the other side of the heating element 14 is separated from the inside of the fixed bracket 1302. Then, the heating element 14 is pulled so that the other side is disengaged from the inside of the movable bracket 1307, thereby allowing the heating element 14 to be disassembled for easy maintenance or replacement.

[0045] In a further preferred embodiment of the present invention, the fixed bracket 1302 and the movable bracket 1307 are C-shaped, and the fixed bracket 1302 and the movable bracket 1307 are used for engaging and installing the heating element 14 on both sides.

[0046] In a further preferred embodiment of the present invention, a sliding structure is formed between the interior of the sliding block 1305 and the positioning groove 1303, and the positioning groove 1303 and the sliding block 1305 are cross-shaped.

[0047] In this embodiment, the sliding of the cross-shaped sliding block 1305 and the inside of the fixed card seat 1302 is used to improve the stability of the sliding column 1306 driving the movable card seat 1307 to slide.

[0048] In a further preferred embodiment of the present invention, the height inside the through groove 1308 is greater than the height of the movable card holder 1307, and the depth inside the through groove 1308 is less than the thickness of the movable card holder 1307.

[0049] In this embodiment, a larger through slot 1308 is used to allow the movable card holder 1307 to fully enter, ensuring that the heating element 14 can be completely separated from the interior of the fixed card holder 1302.

[0050] The working principle of this utility model is as follows: First, the pneumatic telescopic rod 1, heating wire 10, and heating plate 14 are electrically connected to the control terminal of the superplastic thermoforming machine. Then, when heating is required, the pneumatic telescopic rod 1 can be activated first, causing the insulation cover 3 to descend and the upper mold 7 and lower mold 12 to close together. At the same time, the insulation cover 3 will tightly cover the top of the insulation cover 4 and the insulation door 5. The heating wire 10 and heating plate 14 are activated through the external control terminal for heating treatment. Meanwhile, the insulation cover 3, insulation cover 4, and insulation door 5 form a closed space to prevent heat leakage and improve the corresponding heating effect.

[0051] Simultaneously, by moving the pull rod 902, the mounting block 903 can be pushed down to compress the mounting spring 906 until it is fully inserted into the fixing groove 907. Then, the insulation cover 4 is pushed so that the locking block 901 is completely disengaged from the groove 904, thus achieving the disassembly of the insulation cover 4. During installation, the pull rod 902 is first moved to make the mounting block 903 slide down, then the locking block 901 is locked into the groove 904, and the pull rod 902 is released. Using the elastic force of the mounting spring 906, the mounting block 903 slides up to limit one end of the locking block 901, improving the firmness and stability of the locking block 901 and the groove 904. This facilitates the maintenance of the heating wire 10, the disassembly and replacement of the lower mold 12, or the disassembly, maintenance, and replacement of the heating element 14 after the insulation cover 4 and the insulation door 5 are disassembled.

[0052] After the upper mold 7 and the lower mold 12 are disassembled, the two movable brackets 1307 can be slid by moving the connecting rod 1301, so that the sliding column 1306 and the sliding block 1305 slide and compress the positioning spring 1304 until the movable bracket 1307 slides into the through groove 1308. At this time, the other side of the heating element 14 is separated from the inside of the fixed bracket 1302. Then, the heating element 14 is pulled so that the other side is disengaged from the inside of the movable bracket 1307, so that the heating element 14 can be disassembled for maintenance or replacement. During installation, the connecting rod 1301 is moved to slide the movable bracket 1307. Then, one side of the heating element 14 is clamped into the inside of the fixed bracket 1302. Then, the connecting rod 1301 is released, and the elastic force of the positioning spring 1304 is used to clamp the movable bracket 1307 into the other side of the heating element 14. The heating element 14 is then engaged and installed by the fixed bracket 1302 and the movable bracket 1307.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heating device for a superplastic thermoforming machine tool, characterized in that, include: Base (6); A lower heating seat (11) is fixedly connected to the top of the base (6), and a lower mold (12) is fixedly connected to the top of the lower heating seat (11) by bolts. A fixed frame (2) is fixedly connected to the top of the base (6). A pneumatic telescopic rod (1) is fixedly connected to the middle position of the top of the fixed frame (2). The output end of the pneumatic telescopic rod (1) passes through the upper end of the fixed frame (2) and is fixedly connected to a heat insulation cover (3). An upper heating seat (8) is fixedly connected to the bottom end of the heat insulation cover (3). An upper mold (7) is fixedly connected to the bottom end of the upper heating seat (8) by bolts. Heating grooves (15) are formed inside the upper heating seat (8) and the lower heating seat (11), and heating plates (14) are provided inside the heating grooves (15); The positioning component (13) is assembled inside the heating groove (15), and the positioning component (13) is used to realize the quick assembly and disassembly of the heating element (14); The heat insulation cover (4) is set at the top of the base (6), and the front of the heat insulation cover (4) is fixedly connected to the heat insulation door (5) by a hinge; The mounting assembly (9) is assembled on the base (6) and is used to assemble and disassemble the heat insulation cover (4); The installation component (9) includes: A slot (904) is symmetrically opened at the top of the base (6), and a fixing slot (907) is opened inside the base (6) below the slot (904); A mounting spring (906) is symmetrically fixedly connected to the bottom wall of the fixing groove (907). The top end of the mounting spring (906) is fixedly connected to a mounting block (903) extending into the slot (904). One end of the mounting block (903) is fixedly connected to a pull rod (902) extending to the outside of the base (6). The clips (901) are symmetrically fixed to the bottom end of the heat insulation cover (4); The card block (901) and the card slot (904) form an engaging structure, and the card block (901) and the card slot (904) are convex in shape; The pull rod (902) is U-shaped and is used to synchronously drive the two mounting blocks (903) to slide up and down. The inner wall of the fixing groove (907) is provided with a sliding groove (908), and the mounting block (903) is fixedly connected to both sides with sliders (905) that slide in cooperation with the inside of the sliding groove (908); The heat insulation cover (4) is U-shaped, and the cross-sectional area of ​​the heat insulation cover (3) is larger than the cross-sectional area of ​​the space formed by the heat insulation cover (4) and the heat insulation door (5). Heating wires (10) are fixedly connected at equal intervals to the inner walls of the heat insulation cover (4) and the heat insulation door (5). The heating wires (10) are used to heat the periphery of the upper mold (7) and the lower mold (12). The positioning component (13) includes: A through groove (1308) is formed on one side of the inner wall of the heating tank (15); Positioning grooves (1303) are symmetrically formed on the inner wall of the through groove (1308); A positioning spring (1304) is fixedly connected to the inner wall of the positioning groove (1303). One end of the positioning spring (1304) is fixedly connected to a sliding block (1305). One end of the sliding block (1305) is fixedly connected to a sliding column (1306) extending into the heating groove (15). One end of the sliding column (1306) is fixedly connected to a movable bracket (1307). A connecting rod (1301) is fixedly connected to one end of the two movable card holders (1307); A fixing bracket (1302) is fixedly connected to the other side of the inner wall of the heating tank (15).

2. The heating equipment for a superplastic thermoforming machine tool according to claim 1, characterized in that, The fixed bracket (1302) and the movable bracket (1307) are C-shaped and are used for engaging and installing the heating element (14) on both sides.

3. The heating equipment for a superplastic thermoforming machine tool according to claim 1, characterized in that, The sliding block (1305) and the interior of the positioning groove (1303) form a sliding structure, and the positioning groove (1303) and the sliding block (1305) are cross-shaped.

4. The heating equipment for a superplastic thermoforming machine tool according to claim 1, characterized in that, The height inside the through groove (1308) is greater than the height of the movable card seat (1307), and the depth inside the through groove (1308) is less than the thickness of the movable card seat (1307).

Images