Heating device for plastic uptake forming
By designing a blister forming heating device including multiple heat source components, the problem of disassembly and replacement of the heat source in the prior art is solved, and the operation of replacing the heat source is simple and convenient.
Patent Information
- Application Number
- CN202421898765.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-08-07
AI Technical Summary
When the heat source is damaged, the existing blister forming heating device needs to be disassembled to replace the heat source, which is troublesome and inconvenient enough.
A heating device including a heating cover and multiple heat source components is designed. The heat source component consists of an electric heating tube, a fixing hoop, an electrode base and a slider. The electric heating tube is serpentine tube-shaped, and an electrode base and an electrode sheet are provided at the end for easy replacement.
When the heat source is damaged, just lift up the heating cover, unscrew the fixing clamp and bolts to remove and replace the electric heating tube. There is no need to disassemble the entire device, making it easy to operate.
Smart Images
Figure CN222886220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heating device for thermoforming. Background Technique
[0002] Thermoforming is a plastic processing technology. The main principle is to heat and soften a flat plastic sheet using a heating device, then vacuum adsorb it on the surface of a mold, and form it after cooling. This technology is widely used in industries such as plastic packaging, lighting, advertising, and decoration. Many existing heating devices for thermoforming usually use an internal heat source to heat a heat conducting plate, and then make the sheet heat and soften by contacting the heat conducting plate with the plastic sheet. When the heat source of this heating device is damaged, the heating device needs to be disassembled to replace the heat source, and the replacement operation is troublesome and not convenient enough. Therefore, it is necessary to develop a heating device for thermoforming to solve the above problems. Content of the Utility Model
[0003] The purpose of the utility model is to provide a heating device for thermoforming to solve the problems put forward in the above background technique.
[0004] To solve the above problems, the utility model adopts the following technical scheme:
[0005] A heating device for thermoforming includes a heating cover. A heating chamber is provided on the heating cover. A plurality of heat source components are provided on the top wall of the heating chamber. The heat source component includes an electric heating tube. The electric heating tube is attached to the top wall of the heating chamber. A fixing hoop is provided between the electric heating tube and the top wall of the heating chamber. The electric heating tube is in a serpentine tubular structure. An electrode seat is provided at the end of the electric heating tube. The electrode seat is fixedly arranged on the inner wall of the heating chamber. An electrode groove is provided in the electrode seat. A slider is slidably arranged in the electrode groove. An electrode plate is provided on the slider. A spring is provided between the slider and the inner wall of the electrode groove. A power supply is provided on one side of the heating cover. A wire is provided between the electrode plate and the power supply.
[0006] Preferably, a bottom plate is provided on one side of the heating cover. The heating cover is attached to the bottom plate. A U-shaped frame is provided on the bottom plate. A roller is rotatably arranged between the two side walls of the U-shaped frame. Two connecting plates are fixedly arranged on the roller. The connecting plates are connected to the heating cover.
[0007] Preferably, a rubber gasket is provided on one side of the bottom of the heating cover. The rubber gasket is attached to the bottom plate.
[0008] Preferably, the fixing hoop is in a U-shaped structure. Bolts are provided between the two ends of the fixing hoop and the top wall of the heating chamber.
[0009] Preferably, a heat insulation coating is provided on the inner wall of the heating chamber.
[0010] The beneficial effects of the present utility model are as follows: When the heat source of the present utility model is damaged and needs to be replaced, only the heating cover needs to be lifted, and the bolts between the fixing hoop and the top wall of the heating cavity are unscrewed, then the electric heating tube can be removed for replacement, without disassembling the entire heating device, and the operation is simple and convenient; The heat source is composed of multiple electric heating tubes. When a single electric heating tube is damaged, only the damaged electric heating tube needs to be replaced separately. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art, but it is not a limitation to the protection scope of the present utility model.
[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 For the present utility model Figure 1 is a schematic diagram of the installation of the heat source assembly;
[0014] Figure 3 For the present utility model Figure 2 is a schematic diagram of the internal structure of the electrode holder;
[0015] Figure 4 For the present utility model Figure 2 is a schematic diagram of the structure of the fixing hoop.
[0016] In the figure: 11, heating cover; 12, heating cavity; 13, heat insulation coating; 14, heat source assembly; 15, rubber gasket; 16, bottom plate; 17, U-shaped frame; 18, connecting plate; 19, roller; 20, electric heating tube; 21, fixing hoop; 22, electrode holder; 23, power supply; 24, slider; 25, electrode plate; 26, electrode groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] Refer to Figures 1 to 4A heating device for thermoforming, as shown, includes a heating hood 11. A heating chamber 12 is provided on the heating hood 11. A plurality of heat source components 14 are provided on the top wall of the heating chamber 12. The heat source component 14 includes an electric heating tube 20. The electric heating tube 20 is in contact with the top wall of the heating chamber 12. A fixing hoop 21 is provided between the electric heating tube 20 and the top wall of the heating chamber 12. The electric heating tube 20 is in a serpentine tubular structure. An electrode seat 22 is provided at the end of the electric heating tube 20. The electrode seat 22 is fixedly arranged on the inner wall of the heating chamber 12. An electrode groove 26 is provided in the electrode seat 22. A slider 24 is slidably arranged in the electrode groove 26. An electrode plate 25 is provided on the slider 24. A spring is provided between the slider 24 and the inner wall of the electrode groove 26. A power supply 23 is provided on one side of the heating hood 11. A wire is provided between the electrode plate 25 and the power supply 23. The end of the electric heating tube 20 is inserted into the electrode groove 26 and abuts against the electrode plate 25, so that the power supply 23 supplies power to the electric heating tube 20.
[0018] Further, a bottom plate 16 is provided on one side of the heating hood 11. The heating hood 11 is in contact with the bottom plate 16. A U-shaped frame 17 is provided on the bottom plate 16. A roller 19 is rotatably arranged between the two side walls of the U-shaped frame 17. Two connecting plates 18 are fixedly arranged on the roller 19. The connecting plates 18 are connected to the heating hood 11.
[0019] Further, a rubber gasket 15 is provided on one side of the bottom of the heating hood 11. The rubber gasket 15 is in contact with the bottom plate 16. The rubber gasket 15 is placed at the contact between the heating hood 11 and the bottom plate 16, which can buffer the collision between the heating hood 11 and the bottom plate 16 when the heating hood 11 is put down.
[0020] Further, the fixing hoop 21 is in a U-shaped structure. Bolts are provided between the two ends of the fixing hoop 21 and the top wall of the heating chamber 12.
[0021] Further, a heat insulation coating 13 is provided on the inner wall of the heating chamber 12. The heat insulation coating 13 can reduce the heat loss in the heating chamber 12.
[0022] The working principle of the present utility model is as follows. When the electric heating tube 20 is damaged and needs to be replaced, lift the heating hood 11 to make the connecting plates 18 and the roller 19 rotate until the connecting plates 18 lean against the U-shaped frame 17. At this time, the heating chamber 12 is opened upward. Then, unscrew the bolts between the fixing hoop 21 and the top wall of the heating chamber 12, remove the fixing hoop 21. After that, pull the electric heating tube 20 a short distance to one side to separate the electric heating tube 20 from the electrode groove 26, so as to disassemble the electric heating tube 20. Then, put the new electric heating tube 20 into the heating chamber 12, make the end of the electric heating tube 20 insert into the electrode groove 26, and then place the fixing hoop 21 across the electric heating tube 20 and screw on the bolts between the fixing hoop 21 and the top wall of the heating chamber 12 to stably install the electric heating tube 20 in the heating chamber 12. Finally, turn the heating hood 11 to make the heating hood 11 buckle down again.
[0023] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of without creative labor should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.
Claims
1. A heating device for vacuum forming, comprising a heating cover, characterized in that: The heating cover is provided with a heating cavity, and a plurality of heat source components are provided on the top wall of the heating cavity. The heat source component includes an electric heating tube, and the electric heating tube is in contact with the top wall of the heating cavity. A fixing hoop is provided between the electric heating tube and the top wall of the heating cavity. The electric heating tube is in a serpentine tubular structure, and an electrode seat is provided at the end of the electric heating tube. The electrode seat is fixedly arranged on the inner wall of the heating cavity, and an electrode groove is provided in the electrode seat, and a slider is slidably arranged in the electrode groove, and an electrode sheet is provided on the slider, and a spring is provided between the slider and the inner wall of the electrode groove. A power supply is provided on one side of the heating cover, and a wire is provided between the electrode sheet and the power supply.
2. A heating device for vacuum forming according to claim 1, characterized in that: A bottom plate is provided on one side of the heating cover, the heating cover is fitted with the bottom plate, a U-shaped frame is provided on the bottom plate, rollers are rotatably provided between the two side walls of the U-shaped frame, two connecting plates are fixedly provided on the rollers, and the connecting plates are connected to the heating cover.
3. A heating device for vacuum forming according to claim 2, characterized in that: A rubber gasket is provided on one side of the bottom of the heating cover, and the rubber gasket is in contact with the bottom plate.
4. A heating device for vacuum forming according to claim 1, characterized in that: The fixing hoop is in a U-shaped structure, and bolts are arranged between the two ends of the fixing hoop and the top wall of the heating chamber.
5. A heating device for vacuum forming according to claim 1, characterized in that: A heat insulation coating is provided on the inner wall of the heating chamber.