Double-layer thick sheet blister forming machine

Abstract

The utility model discloses a double -deck thick sheet blister forming machine, more particularly in the blister forming machine technical field, including work table, the upper end fixed connection of work table has the fixed frame, the upper end fixed connection of fixed frame has the down -the -line machine, the left side fixed connection of work table has the support, the upper end fixed connection of support has the first conveyer table, the upper end fixed connection of first conveyer table has the heating device, the lower end fixed connection of work table has the heat abstractor, the right side fixed connection of heat abstractor has the lift rod, the upper end fixed connection of lift rod has the second conveyer table, the double -deck thick sheet blister forming machine of the utility model can be heated evenly through warm air preheating and adjustable spray head, not only has improved the quality and efficiency of double -deck thick sheet blister forming, but also has reduced the comprehensive cost from material saving, energy optimization, equipment maintenance and so on multidimensional, has strengthened the process flexibility and environmental protection simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming machine technology, specifically to a double-layer thick sheet vacuum forming machine. Background Technology

[0002] Thick-sheet vacuum forming technology is widely used in the manufacturing of automobiles, home appliances, and industrial parts. However, traditional single-layer vacuum forming processes have significant limitations for double-layer structures (such as composite panels and soundproof covers). Existing technologies often involve two separate vacuum forming processes followed by bonding, which is cumbersome and prone to delamination due to misalignment during hot pressing. Simultaneous double-layer forming presents challenges such as uneven heating of the upper and lower sheets, large differences in stretch ratios, and insufficient bonding force during demolding, easily leading to bubbles, wrinkles, or uneven thickness. Furthermore, conventional equipment lacks mold adaptive systems and precise temperature control devices for double-layer structures, resulting in long forming cycles and high scrap rates. Therefore, there is an urgent need for an integrated device that combines heating, heat dissipation control, and efficient bonding functions to improve the forming efficiency and quality stability of double-layer thick-sheet products.

[0003] Chinese patent document CN207549437U discloses a double-layer thick sheet vacuum forming machine. It includes a vacuum forming machine body, a vacuum forming table, a double-layer vacuum forming mold, a first electric telescopic rod, a fan box, a second electric telescopic rod, a conveying device, conveyor rollers, a belt, a vacuum forming machine control cabinet, a conveyor motor, and a conveyor table. The vacuum forming machine control cabinet is located at the bottom of the vacuum forming machine body, and the vacuum forming table is located at the top of the control cabinet. The first electric telescopic rods are located on both sides of the vacuum forming table, and the double-layer vacuum forming mold is located at the top of each first electric telescopic rod. A fan box is located on one side of the control cabinet, and a conveying device is located on the other side. The second electric telescopic rod is located at the bottom of one end of the conveying device, and a conveyor motor is located at the bottom of the other end. A conveyor table is mounted on the conveying device, and conveyor rollers are mounted on the conveyor table. This device eliminates the need for manual material handling and loading, reducing manpower, improving efficiency, saving time, and increasing profitability, bringing great convenience to people.

[0004] Although the equipment described in the above literature is convenient for handling and loading, its structure is relatively simple, the heating effect of the heating components is not uniform, and it cannot quickly cool down the material after vacuum forming, resulting in low material solidification efficiency, which affects the progress of subsequent work and reduces the practical value of the equipment. Utility Model Content

[0005] The main purpose of this invention is to provide a double-layer thick sheet vacuum forming machine, which can effectively solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A double-layer thick sheet vacuum forming machine includes a worktable, a fixed frame fixedly connected to the upper end of the worktable, a lower press fixedly connected to the upper end of the fixed frame, a support fixedly connected to the left side of the worktable, a first conveyor fixedly connected to the upper end of the support, a heating device fixedly connected to the upper end of the first conveyor, a heat dissipation device fixedly connected to the lower end of the worktable, a lifting rod fixedly connected to the right side of the heat dissipation device, and a second conveyor fixedly connected to the upper end of the lifting rod. The heating device includes a fan, and the fixed end of the fan is fixedly connected to the upper end of the first conveyor table. The heat dissipation device includes a heat dissipation box, the upper end of which is fixedly connected to the lower end of the workbench.

[0007] Preferably, a controller is fixedly connected to one side of the heating device, and a support foot is fixedly connected to the lower end of the heat dissipation device.

[0008] Preferably, a filter screen is fixedly connected to the inlet of the fan, a duct is fixedly connected to the outlet of the fan, and a temperature converter is fixedly connected to one end of the duct.

[0009] Preferably, the output end of the temperature converter is fixedly connected to a telescopic hose, one end of the telescopic hose is fixedly connected to a nozzle, one side of the nozzle is fixedly connected to a rotating rod, and one end of the rotating rod is fixedly connected to a first driven wheel.

[0010] Preferably, a first driving wheel is connected to one side of the first driven wheel, a first motor is fixedly connected to one end of the first driving wheel, and a synchronous belt is provided between the first driven wheel and the first driving wheel.

[0011] Preferably, a heat-conducting plate is fixedly connected to the upper middle part of the heat dissipation box, and a heat-conducting pipe is fixedly mounted at the bottom of the heat-conducting plate.

[0012] Preferably, the heat dissipation box has ventilation openings on its four walls, and a ventilation mesh is fixedly connected to one side of each ventilation opening.

[0013] Preferably, a second motor is fixedly connected to the inner wall of the heat sink, a second drive wheel is fixedly connected to the output end of the second motor, a second driven wheel is driven to both sides of the second drive wheel, and a fan blade is fixedly connected to the upper end of the second driven wheel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a double-layer thick sheet vacuum forming machine. The equipment is equipped with a heating device, which utilizes preheating with warm air and adjustable nozzles to achieve uniform heating. This not only improves the quality and efficiency of double-layer thick sheet vacuum forming but also reduces overall costs from multiple dimensions, including material saving, energy optimization, and equipment maintenance. Simultaneously, it enhances process flexibility and environmental friendliness. Double-layer thick sheet vacuum forming requires simultaneous or stepwise softening of both layers of material. Uniform heating avoids localized overheating or areas that haven't reached softening temperature, reducing stress concentration, deformation, or uneven thickness in the formed product. The adjustable nozzles can precisely cover the material surface, avoiding blind spots or repeated heating caused by traditional fixed nozzles, reducing overall heating time, and improving production speed. The warm air circulation system, combined with precise temperature control, reduces ineffective heat loss; nozzle angle adjustment avoids heating non-target areas, reducing energy consumption; the preheating stage uses warm air instead of direct contact heating, reducing the risk of material adhesion or accidental melting, and improving operational safety. The fan blows air through the duct to the temperature converter for heating, and the temperature is controlled in real time by a temperature sensor before being blown out of the nozzle to heat the material. In addition, the first motor drives the first drive wheel to rotate, causing the first driven wheel connected by the synchronous pulley to rotate as well, so that the nozzle on the rotating rod rotates together, making it easy to adjust the air outlet angle and making the material heated more evenly. The installation of a telescopic hose can prevent damage to the pipes by pulling.

[0015] 2. This utility model provides a double-layer thick sheet vacuum forming machine. This equipment is equipped with a heat dissipation device. Utilizing this device, through the coordinated heat dissipation design of heat-conducting plates, heat-conducting pipes, and fans, the double-layer thick sheet vacuum forming machine achieves a closed-loop optimization of "high-efficiency cooling - equipment protection - stable quality." This not only improves production efficiency and product yield but also reduces energy consumption and maintenance costs. The heat-conducting plates and heat-conducting pipes can quickly dissipate the heat from the vacuum-formed material, and combined with forced cooling by the fan, significantly shortens the cooling time and accelerates the production cycle. It is especially suitable for large-scale automated production. Traditional natural cooling is time-consuming; active cooling can accelerate the cooling of the mold and material. This allows the equipment to enter the next cycle faster, increasing output per unit time. If the high temperature generated during the thermoforming process is not dissipated in time, it may cause the mold, hydraulic system, or electrical components to deform or fail due to thermal expansion. The heat dissipation system can maintain the temperature stability of key components of the equipment and extend the equipment's lifespan. The heat conduction plates and heat conduction pipes can conduct the heat from the material above, facilitating material cooling. The four walls of the heat dissipation box are equipped with ventilation nets to facilitate ventilation and trap dust. In addition, the second motor drives the second drive wheel to rotate, causing the second driven wheel to drive the fan blades to rotate, thereby blowing away the heat carried by the heat conduction pipes and further improving the heat dissipation effect of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the heating device structure of this utility model; Figure 3 This is a side view of the heating device of this utility model. Figure 4 This is a schematic diagram of the heat dissipation device structure of this utility model; Figure 5 This is a side view of the structure of this utility model.

[0017] In the diagram: 1. Workbench; 2. Fixed frame; 3. Press; 4. Support; 5. First conveyor; 6. Heating device; 61. Fan; 62. Air duct; 63. Temperature converter; 64. Telescopic hose; 65. Nozzle; 66. Rotating rod; 67. First driven wheel; 68. First driving wheel; 69. First motor; 7. Heat dissipation device; 71. Heat dissipation box; 72. Heat-conducting plate; 73. Heat-conducting pipe; 74. Ventilation net; 75. Second motor; 76. Second driving wheel; 77. Second driven wheel; 78. Fan blade; 8. Lifting rod; 9. Second conveyor. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1 and Figure 5As shown, a double-layer thick sheet vacuum forming machine includes a worktable 1, a fixed frame 2 fixedly connected to the upper end of the worktable 1, a lower press 3 fixedly connected to the upper end of the fixed frame 2, a support 4 fixedly connected to the left side of the worktable 1, a first conveyor table 5 fixedly connected to the upper end of the support 4, and a heating device 6 fixedly connected to the upper end of the first conveyor table 5. This device utilizes preheating with warm air and adjustable nozzles to achieve uniform heating, which not only improves the quality and efficiency of double-layer thick sheet vacuum forming but also reduces overall costs from multiple dimensions such as material saving, energy optimization, and equipment maintenance. This approach combines cost-effectiveness with enhanced process flexibility and environmental friendliness. Double-layer thick sheet thermoforming requires simultaneous or stepwise softening of both materials. Uniform heating avoids localized overheating or areas that haven't reached softening temperature, reducing stress concentration, deformation, and uneven thickness in the formed product. Adjustable nozzles precisely cover the material surface, avoiding blind spots or repeated heating caused by traditional fixed nozzles, reducing overall heating time and improving production speed. A warm air circulation system, combined with precise temperature control, minimizes ineffective heat loss. Adjustable nozzle angles prevent heating of non-target areas, further reducing energy consumption. The preheating stage uses warm air instead of direct contact heating to reduce the risk of material adhesion or accidental melting, and improve operational safety. The lower end of the worktable 1 is fixedly connected to a heat dissipation device 7. With the help of the heat conduction plate, heat conduction pipe and fan, the double-layer thick sheet vacuum forming machine realizes the closed-loop optimization of "efficient cooling-equipment protection-quality stability". This not only improves production efficiency and product yield, but also reduces energy consumption and maintenance costs. The heat conduction plate and heat conduction pipe can quickly conduct heat out of the material after vacuum forming. With the forced heat dissipation of the fan, the cooling time is greatly shortened and the production cycle is accelerated. It is especially suitable for mass automated production. Traditional natural cooling takes a long time. Active heat dissipation can accelerate the cooling of mold and material, so that the equipment can enter the next cycle faster and increase the output per unit time. If the high temperature generated during vacuum forming is not dissipated in time, it may cause the mold, hydraulic system or electrical components to deform or fail due to thermal expansion. The heat dissipation system can maintain the temperature stability of key components of the equipment and extend the equipment life. The right side of the heat dissipation device 7 is fixedly connected to a lifting rod 8, and the upper end of the lifting rod 8 is fixedly connected to a second conveyor table 9. The heating device 6 includes a fan 61, the fixed end of which is fixedly connected to the upper end of the first conveyor table 5. The heat dissipation device 7 includes a heat dissipation box 71, the upper end of which is fixedly connected to the lower end of the workbench 1. A controller is fixedly connected to one side of the heating device 6, and a support foot is fixedly connected to the lower end of the heat dissipation device 7.

[0020] like Figure 2 and Figure 3As shown, a filter screen is fixedly connected to the inlet of the fan 61, and a duct 62 is fixedly connected to the outlet of the fan 61. A temperature converter 63 is fixedly connected to one end of the duct 62, and a flexible hose 64 is fixedly connected to the outlet of the temperature converter 63. A nozzle 65 is fixedly connected to one end of the flexible hose 64, and a rotating rod 66 is fixedly connected to one side of the nozzle 65. A first driven wheel 67 is fixedly connected to one end of the rotating rod 66, and a first driving wheel 68 is driven to one side of the first driven wheel 67. A first motor 69 is fixedly connected to one end of the first driving wheel 68. The first driven wheel 67 and... A synchronous belt is provided between the first drive wheels 68. The blower 61 blows air through the air duct 62 to the temperature converter 63 for heating. The temperature is controlled in real time by the temperature sensor. Then the air is blown out through the nozzle 65 to heat the material. In addition, the first motor 69 drives the first drive wheels 68 to rotate, causing the first driven wheel 67 connected by the synchronous belt to rotate as well. This causes the nozzle 65 on the rotating rod 66 to rotate together, which makes it easy to adjust the air outlet angle and make the material heated more evenly. The telescopic hose 64 can prevent the pipe from being pulled and damaged. like Figure 4 As shown, a heat-conducting plate 72 is fixedly connected to the upper middle part of the heat dissipation box 71. A heat-conducting pipe 73 is fixedly mounted on the bottom of the heat-conducting plate 72. Ventilation openings are provided on the four walls of the heat dissipation box 71. A ventilation net 74 is fixedly connected to one side of the ventilation opening. A second motor 75 is fixedly connected to the inner wall of the heat dissipation box 71. A second driving wheel 76 is fixedly connected to the output end of the second motor 75. A second driven wheel 77 is driven to both sides of the second driving wheel 76. A fan blade 78 is fixedly connected to the upper end of the second driven wheel 77. The heat-conducting plate 72 and the heat-conducting pipe 73 can conduct heat out of the material above, which is convenient for the material to cool down. Ventilation nets 74 are provided on the four walls of the heat dissipation box 71 to facilitate ventilation and intercept dust. In addition, the second driving wheel 76 is driven by the second motor 75 to rotate, which causes the second driven wheel 77 to drive the fan blade 78 to rotate, thereby blowing away the heat carried by the heat-conducting pipe 73 and further improving the heat dissipation effect of the equipment.

[0021] The working principle of this utility model is as follows: Air is blown by a fan 61 through a heating device 6, and transported to a temperature converter 63 via a duct 62 for heating. The temperature is monitored in real time by a temperature sensor. The air is then blown out through a nozzle 65 to heat the material. Additionally, a first motor 69 drives a first drive wheel 68 to rotate, causing a first driven wheel 67 connected by a synchronous belt to rotate as well. This causes the nozzle 65 on the rotating rod 66 to rotate, facilitating adjustment of the air outlet angle and ensuring more uniform heating of the material. A flexible hose 64 is provided to prevent damage from pipe pulling. A heat dissipation device 7, with a heat-conducting plate 72 and heat-conducting pipes 73, dissipates heat from the material above, facilitating cooling. Ventilation mesh 74 is installed on all four walls of the heat dissipation box 71 for ventilation and dust trapping. Furthermore, a second motor 75 drives a second drive wheel 76 to rotate, causing a second driven wheel 77 to rotate a fan blade 78, thereby dissipating the heat carried by the heat-conducting pipes 73 and further improving the heat dissipation effect of the equipment.

[0022] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-layer thick sheet vacuum forming machine, comprising a worktable (1), characterized in that: A fixed frame (2) is fixedly connected to the upper end of the workbench (1), a lower press (3) is fixedly connected to the upper end of the fixed frame (2), a support (4) is fixedly connected to the left side of the workbench (1), a first conveyor (5) is fixedly connected to the upper end of the support (4), a heating device (6) is fixedly connected to the upper end of the first conveyor (5), a heat dissipation device (7) is fixedly connected to the lower end of the workbench (1), a lifting rod (8) is fixedly connected to the right side of the heat dissipation device (7), and a second conveyor (9) is fixedly connected to the upper end of the lifting rod (8). The heating device (6) includes a fan (61), the fixed end of which is fixedly connected to the upper end of the first conveyor (5). The heat dissipation device (7) includes a heat dissipation box (71), the upper end of which is fixedly connected to the lower end of the workbench (1).

2. The double-layer thick sheet vacuum forming machine according to claim 1, characterized in that: A controller is fixedly connected to one side of the heating device (6), and a support foot is fixedly connected to the lower end of the heat dissipation device (7).

3. The double-layer thick sheet vacuum forming machine according to claim 1, characterized in that: A filter screen is fixedly connected to the inlet of the fan (61), and a duct (62) is fixedly connected to the outlet of the fan (61). A temperature converter (63) is fixedly connected to one end of the duct (62).

4. A double-layer thick sheet vacuum forming machine according to claim 3, characterized in that: The output end of the temperature converter (63) is fixedly connected to a telescopic hose (64), one end of the telescopic hose (64) is fixedly connected to a nozzle (65), one side of the nozzle (65) is fixedly connected to a rotating rod (66), and one end of the rotating rod (66) is fixedly connected to a first driven wheel (67).

5. A double-layer thick sheet vacuum forming machine according to claim 4, characterized in that: The first driven wheel (67) is connected to a first driving wheel (68) on one side, and a first motor (69) is fixedly connected to one end of the first driving wheel (68). A synchronous belt is provided between the first driven wheel (67) and the first driving wheel (68).

6. The double-layer thick sheet vacuum forming machine according to claim 1, characterized in that: A heat-conducting plate (72) is fixedly connected to the upper middle part of the heat dissipation box (71), and a heat-conducting pipe (73) is fixedly mounted at the bottom of the heat-conducting plate (72).

7. A double-layer thick sheet vacuum forming machine according to claim 6, characterized in that: The heat dissipation box (71) has ventilation openings on its four walls, and a ventilation net (74) is fixedly connected to one side of each ventilation opening.

8. A double-layer thick sheet vacuum forming machine according to claim 7, characterized in that: The inner wall of the heat sink (71) is fixedly connected to a second motor (75), the output end of the second motor (75) is fixedly connected to a second driving wheel (76), the two sides of the second driving wheel (76) are connected to a second driven wheel (77), and the upper end of the second driven wheel (77) is fixedly connected to a fan blade (78).

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