Preheater for PET plate processing

Abstract

The utility model belongs to the field of plate processing, and particularly relates to a preheater for PET plate processing, which comprises a workbench, the top of the workbench is fixedly connected with a shell, two sides of the shell are provided with openings, the top of the shell is provided with an air heater, the output end of the air heater is fixedly connected with an air delivery pipe, and the air delivery pipe penetrates through the shell; hydraulic cylinders are fixedly connected to the two sides of the shell correspondingly, upper door plates are fixedly connected to the output ends of the hydraulic cylinders, and the upper door plates are located on the side faces of the openings, in the using process, a worker places a plate into the shell, then the worker feeds the plate from the openings formed in the side faces of the shell, and after feeding is completed, the plate is fixed through the hydraulic cylinders; the hydraulic cylinder drives the upper door plate to move downwards, the guide rail is rotationally connected with the gear, and the gear drives the lower door plate to move upwards under the action of the rack, so that the lower door plate and the lower door plate are closed and shield the side face of the opening at the same time, and the sealing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sheet processing, specifically a preheating machine for PET sheet processing. Background Technology

[0002] PET sheets are thermoplastic engineering plastics with polyethylene terephthalate (PET) and polybutylene terephthalate (PBT) as the main components.

[0003] In the current technology, when processing composite multilayer PET sheets, high-temperature lamination is required to ensure a tight bond between the sheets. Before processing, the workers need to send the sheets into the preheating machine to preheat them. The preheating machine mainly relies on a hot air blower to generate hot air to heat the sheets. To reduce the waste of hot air, a shell is installed on its worktable, with openings at both ends for entry and exit.

[0004] However, during preheating, hot air is ejected from the openings at both ends of the shell, resulting in a waste of heat. Therefore, a preheating machine for PET sheet processing is proposed to address the above problem. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a preheating machine for PET sheet processing.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A preheating machine for PET sheet processing according to this utility model includes a workbench, a shell fixedly connected to the top of the workbench, openings on both sides of the shell, a hot air blower installed on the top of the shell, an air supply pipe fixedly connected to the output end of the hot air blower, and the air supply pipe penetrating the shell; hydraulic cylinders are fixedly connected to both sides of the shell, an upper door panel is fixedly connected to the output end of the hydraulic cylinder, the upper door panel is located on the side of the opening, guide rails are provided on both sides of the upper door panel, the guide rails are fixedly connected to the shell, a gear is rotatably connected to the middle of the guide rail, a lower door panel is slidably connected to the bottom of the guide rail, and racks are fixedly connected to the sides of both the lower door panel and the upper door panel, the racks and gears meshing with each other.

[0007] Preferably, a frame is fixed to the top of the workbench, the frame extends through the housing, and multiple conveying rollers are rotatably connected to the frame.

[0008] Preferably, the guide rail has a sliding groove inside, the side of the lower door panel is inserted into the sliding groove and slidably connected thereto, and the side of the upper door panel is inserted into the sliding groove and slidably connected thereto.

[0009] Preferably, both sides of the upper and lower door panels are provided with grooves, and multiple pulleys are rotatably connected inside the grooves, with the pulleys located inside the grooves.

[0010] Preferably, two sets of air outlet pipes are fixedly connected to the frame, the two sets of air outlet pipes are located at the top and bottom of the frame respectively, the air outlet pipes are provided with air outlets, and the ends of the air outlet pipes are fixedly connected to the air supply pipes.

[0011] Preferably, an air inlet pipe is fixedly connected between the air inlet pipe of the hot air blower and the housing, and sealing strips are fixedly connected to the sides of the lower door panel and the upper door panel that are close to each other.

[0012] The advantages of this utility model are:

[0013] 1. This utility model is designed with a housing, a hydraulic cylinder, gears, a guide rail, a rack, a lower door panel, and an upper door panel. In use, the operator places the sheet material inside the housing and then feeds it in through an opening on the side of the housing. After feeding, the hydraulic cylinder drives the upper door panel to move down, and the gears connected to the guide rail rotate and, under the action of the rack, drive the lower door panel to move up, so that the lower door panel and the upper door panel close and cover the side of the opening, thereby achieving a sealing effect.

[0014] 2. This utility model provides two sets of air outlet pipes with openings. By providing two sets of air outlet pipes, the plate can be heated from both the top and bottom, thus facilitating preheating. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the shell structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the air outlet duct structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the lower door panel and upper door panel structure of this utility model;

[0020] Figure 5This is a schematic diagram of the gear and rack of this utility model.

[0021] In the diagram: 11. Workbench; 12. Housing; 13. Hot air blower; 14. Guide rail; 15. Hydraulic cylinder; 16. Upper door panel; 17. Lower door panel; 18. Gear; 19. Rack; 2. Slide groove; 21. Frame; 22. Conveyor roller; 31. Groove; 32. Pulley; 51. Air outlet pipe; 52. Air outlet; 61. Air inlet pipe; 62. Sealing strip; 7. Air supply pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figure 1-5 As shown, a preheating machine for PET sheet processing includes a workbench 11, a housing 12 fixedly connected to the top of the workbench 11, openings on both sides of the housing 12, a hot air blower 13 mounted on the top of the housing 12, and an air supply pipe 7 fixedly connected to the output end of the hot air blower 13, the air supply pipe 7 penetrating the housing 12; hydraulic cylinders 15 are fixedly connected to both sides of the housing 12, and an upper door panel 16 is fixedly connected to the output end of the hydraulic cylinder 15, the upper door panel 16 being located on the side of the opening. The upper door panel 16 is provided with guide rails 14 on both sides. The guide rails 14 are fixedly connected to the housing 12. A gear 18 is rotatably connected to the middle of the guide rails 14. The lower door panel 17 is slidably connected to the bottom of the guide rails 14. A rack 19 is fixedly connected to the sides of the lower door panel 17 and the upper door panel 16. The rack 19 and the gear 18 mesh with each other. A frame 21 is fixedly connected to the top of the workbench 11. The frame 21 passes through the housing 12. Multiple conveying rollers 22 are rotatably connected to the frame 21.

[0025] In use, the operator places the sheet material inside the housing 12 and then feeds it in through the opening on the side of the housing 12. After feeding, the hydraulic cylinder 15 drives the upper door panel 16 to move down, and the guide rail 14 is rotatably connected to the gear 18. Under the action of the rack 19, the gear 18 drives the lower door panel 17 to move up, so that the lower door panel 17 closes and covers the side of the opening, thus achieving a sealing effect. The frame 21 is provided, and multiple conveying rollers 22 are rotatably connected to the frame 21. The conveying rollers 22 facilitate the movement of the sheet material into the housing 12.

[0026] Furthermore, such as Figure 1-5 As shown, the guide rail 14 has a sliding groove 2 inside, the side of the lower door panel 17 is inserted into the sliding groove 2 and slidably connected thereto, and the side of the upper door panel 16 is inserted into the sliding groove 2 and slidably connected thereto; both sides of the upper door panel 16 and the lower door panel 17 have grooves 31, and multiple pulleys 32 are rotatably connected inside the grooves 31, the pulleys 32 being located inside the sliding groove 2; two sets of air outlet pipes 51 are fixedly connected to the frame 21, the two sets of air outlet pipes 51 being located at the top and bottom of the frame 21 respectively, the air outlet pipes 51 have air outlets 52, and the ends of the air outlet pipes 51 are fixedly connected to the air supply pipes 7; the air inlet pipe 61 of the hot air blower 13 is fixedly connected to the housing 12, and sealing strips 62 are fixedly connected to the sides of the lower door panel 17 and the upper door panel 16 that are close to each other;

[0027] In use, the lower door panel 17 and the upper door panel 16 are inserted into the sliding groove 2 inside the guide rail 14 and slid and guided, which improves stability. The pulley 32 can reduce the friction of sliding up and down. The two sets of air outlet pipes 51 can heat the plate from the top and bottom sides, which can facilitate preheating. The sealing strip 62 can seal the connection between the upper door panel 16 and the lower door panel 17, thereby reducing the leakage of hot air. The hot air blower 13 is a circulating hot air blower 13.

[0028] Working principle: During use, the operator places the sheet material inside the housing 12, and then feeds the sheet material through the opening on the side of the housing 12. After feeding, the hydraulic cylinder 15 drives the upper door panel 16 to move downwards. A gear 18 rotatably connects to the guide rail 14, and under the action of the rack 19, it drives the lower door panel 17 to move upwards, thus closing the lower door panel 17 and simultaneously blocking the side of the opening, thereby achieving a sealing effect. A frame 21 is provided, with multiple conveyor rollers 22 rotatably connected to it, through which the material is fed... 22 facilitates the movement of the sheet material into the interior of the housing 12. During use, the lower door panel 17 and the upper door panel 16 are inserted into the sliding groove 2 and guided by the sliding groove 2 inside the guide rail 14 to improve stability. The pulley 32 can reduce the sliding friction. Two sets of air outlet pipes 51 can heat the sheet material from the top and bottom sides, which can facilitate preheating. The sealing strip 62 can seal the connection between the upper door panel 16 and the lower door panel 17 to reduce hot air leakage. The hot air blower 13 is a circulating hot air blower 13.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] 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 claimed utility model.

Claims

1. A preheating machine for PET plate processing, comprising a workbench (11), the top of the workbench (11) is fixedly connected with a shell (12), the both sides of the shell (12) are provided with openings, the top of the shell (12) is provided with a hot air machine (13), the output end of the hot air machine (13) is fixedly connected with a gas conveying pipe (7), and the gas conveying pipe (7) penetrates through the shell (12); characterized in that: Both sides of the shell (12) are fixed with hydraulic cylinders (15), the output end of the hydraulic cylinder (15) is fixed with the upper door plate (16), the upper door plate (16) is located in the side of the opening, both sides of the upper door plate (16) are provided with guide rails (14), the guide rail (14) and the shell (12) are fixed, the middle part of the guide rail (14) is rotatably connected with the gear (18), the bottom of the guide rail (14) is slidably connected with the lower door plate (17), the side of the lower door plate (17) and the upper door plate (16) is fixed with the rack (19), the rack (19) and the gear (18) are meshed with each other. ​ 2. The preheating machine for processing PET plates according to claim 1, characterized in that: The top of the workbench (11) is fixed with a rack (21), the rack (21) penetrates the shell (12), a plurality of conveying rollers (22) are rotatably connected on the rack (21).

3. The preheating machine for processing PET plates according to claim 2, characterized in that: The inside of the guide rail (14) is provided with a sliding groove (2), the side of the lower door plate (17) is inserted into the inside of the sliding groove (2) and is slidably connected therewith, the side of the upper door plate (16) is inserted into the inside of the sliding groove (2) and is slidably connected therewith.

4. The preheating machine for processing PET plates according to claim 3, characterized in that: The both sides of the upper door plate (16) and the lower door plate (17) are provided with grooves (31), a plurality of pulleys (32) are rotatably connected in the inside of the groove (31), the pulley (32) is located in the inside of the sliding groove (2).

5. The preheating machine for processing PET sheet material according to claim 4, characterized in that: Two groups of air outlet pipes (51) are fixed on the rack (21), two groups of the air outlet pipes (51) are located at the top and the bottom of the rack (21) respectively, the air outlet pipe (51) is provided with an air outlet (52), the end of the air outlet pipe (51) is fixed with the air conveying pipe (7).

6. The preheating machine for processing PET plates according to claim 5, characterized in that: The air inlet pipe (61) of the hot air machine (13) and the shell (12) are fixed with the air inlet pipe (61), the side of the lower door plate (17) and the upper door plate (16) which are close to each other is fixed with a sealing strip (62).

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