Tunnel type heating device

Abstract

The utility model discloses a tunnel type heating device. The tunnel type heating device comprises a spreading mechanism, a heating transportation mechanism and a heating mechanism, according to the tunnel type heating device, the matched blocking piece and the flexible swing piece are used for locally blocking the discharging port of the receiving hopper, the size of the discharging port can be adaptively adjusted according to the size of a workpiece, the discharging port can evenly discharge the workpiece, the swing unit drives the flexible swing piece to move, the workpiece is evenly laid on the heating and conveying mechanism, and the working efficiency is improved. The workpiece is conveyed by the heating conveying mechanism to penetrate through the heating mechanism, so that the workpiece can be uniformly heated in the heating mechanism, the heating and curing effect of the heating mechanism on a coating layer on the workpiece can be improved, the manual participation degree is reduced, and the automation degree can be improved when the device is applied to a coating production line.

Description

Technical Field

[0001] This utility model relates to a heating device, and more particularly to a tunnel heating device. Background Technology

[0002] A coating production line typically includes a coating machine and heating equipment. In the anti-corrosion treatment of some workpieces, the coating machine is used to coat the surface of the workpiece with anti-corrosion material, and then workers transfer the coated workpiece to the heating equipment for heating and curing. Throughout the process, manual labor is required to use tools such as rakes to spread the workpieces poured onto the heating equipment, resulting in low automation and low processing efficiency. Utility Model Content

[0003] Purpose of the utility model: To provide a tunnel heating device that can automatically transport, heat and cure, and lay out workpieces, reducing the degree of manual intervention.

[0004] Technical Solution: The tunnel heating device provided by this utility model includes a material laying mechanism, a heating and transporting mechanism, and a heating mechanism. The material laying mechanism includes a receiving hopper, a swinging unit, and a flexible swinging plate. The receiving hopper is installed on the loading end of the heating and transporting mechanism via a receiving support column. The flexible swinging plate is movably installed on the receiving hopper via a movable mounting unit, with its lower edge used to partially block the discharge port of the receiving hopper. A matching baffle is vertically fixed on the edge opposite the discharge port of the receiving hopper to the flexible swinging plate. The swinging unit is used to drive the flexible swinging plate to swing, so that the workpiece is laid flat on the loading end of the heating and transporting mechanism. The heating and transporting mechanism passes through the heating mechanism to drive the workpiece through the heating mechanism. The heating mechanism is used to heat and cure the coating layer of the workpiece.

[0005] Furthermore, the heating and transport mechanism includes a transport drive motor, two transport strips, and two transport drive shafts; the two transport drive shafts are rotatably connected to the opposite ends of the two transport strips; the transport strips pass through the heating mechanism; two sets of transport chain transmission pairs are connected between the two transport drive shafts; a conveyor belt is connected between the transport transmission chains of the two sets of transport chain transmission pairs; the transport drive motor drives one of the transport drive shafts to rotate through the transport chain transmission pairs.

[0006] Furthermore, inclined plates that guide the workpieces to the conveyor belt are installed opposite each other on the loading side of the two transport strips.

[0007] Furthermore, the heating mechanism includes a heating tunnel, an exhaust fan, a main exhaust duct, and multiple hot air fans; the heating transport mechanism runs through the heating tunnel; each hot air fan is installed intermittently on the heating tunnel to blow hot air into the heating tunnel; the exhaust fan is installed on the heating tunnel, and the main exhaust duct is connected to the air inlet of the exhaust fan; multiple exhaust ports are provided on the heating tunnel, which are connected to the main exhaust duct through branch exhaust ducts; and temperature sensors are installed on the heating tunnel.

[0008] Furthermore, the movable mounting unit includes a movable plate and two movable seats; a movable guide rod and a U-shaped limiting frame are horizontally fixed on the receiving hopper; the two movable seats are slidably mounted on the movable guide rod; the upper edge of the movable plate is fixed on the two movable seats, and the lower edge is movably inserted between the U-shaped limiting frame and the receiving hopper; a swaying plate is fixed on the lower edge of the movable plate.

[0009] Furthermore, the oscillating unit includes an oscillating drive motor and a drive disk; the oscillating drive motor is mounted on the receiving support column; the drive disk is coaxially mounted on the output shaft of the oscillating drive motor; two oscillating drive rods are provided on the movable plate; oscillating connecting rods are connected to the two oscillating drive rods; and a rotating connecting rod with its end rotatably mounted on the oscillating connecting rod is eccentrically mounted on the drive disk.

[0010] Furthermore, the swing unit also includes an opening adjustment screw; an opening adjustment tube is horizontally fixed on the lower end of the swing drive rod; an opening adjustment rod is horizontally fixed on the lower side of the flexible swing plate; the opening adjustment screw is coaxially and adjustablely mounted on the opening adjustment tube, and its end is fixed on the opening adjustment rod.

[0011] Compared with the prior art, the advantages of this utility model are as follows: by using a baffle plate and a flexible swing plate to partially block the discharge port of the receiving hopper, the size of the discharge port can be adaptively adjusted according to the size of the workpiece, so that the discharge port can discharge the material evenly. The swing unit drives the flexible swing plate to move, so that the workpiece is evenly laid on the heating and conveying mechanism and transported through the heating mechanism, so that the workpiece can be evenly heated in the heating mechanism. This can improve the heating and curing effect of the heating mechanism on the coating layer on the workpiece, and reduce the degree of manual intervention. When applied to the coating production line, it can improve the degree of automation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the receiving hopper of this utility model;

[0014] Figure 3 This is a schematic diagram of the installation of the movable plate of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the heating and transport mechanism of this utility model;

[0016] In the diagram: 401, receiving hopper; 402, receiving support column; 403, inclined plate; 404, mating baffle; 405, flexible swing plate; 406, opening adjustment screw; 407, clamping positioning nut; 408, swing drive rod; 409, swing connecting rod; 410, rotating connecting rod; 411, drive disc; 412, swing drive motor; 413, movable plate; 414, movable seat; 415, movable clamping pulley; 416, movable guide rod; 417, pressing roller; 418, opening adjustment rod; 419, U-shaped limit frame;

[0017] 501. Heated tunnel; 502. Temperature sensor; 503. Hot air blower; 504. Main exhaust duct; 505. Exhaust outlet; 506. Branch exhaust duct; 507. Exhaust fan; 508. Transport drive motor; 509. Transport long strip; 510. Tunnel support leg; 511. Conveyor belt; 512. Transport drive shaft; 513. Conveyor support perforated plate. Detailed Implementation

[0018] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Example 1:

[0022] like Figure 1-4As shown, the tunnel heating device provided by this utility model includes: a material laying mechanism, a heating and transporting mechanism, and a heating mechanism; the material laying mechanism includes a receiving hopper 401, a swinging unit, and a flexible swinging plate 405; the receiving hopper 401 is supported and fixed on the loading end of the heating and transporting mechanism by a receiving support column 402; the flexible swinging plate 405 is movably mounted on the receiving hopper 401 by a movable mounting unit, and its lower edge is used to partially block the discharge port of the receiving hopper 401; a matching baffle 404 is vertically fixed on the edge opposite the discharge port of the receiving hopper 401 to the flexible swinging plate 405; the swinging unit is used to drive the flexible swinging plate 405 to swing, so that the workpiece is laid flat on the loading end of the heating and transporting mechanism; the heating and transporting mechanism passes through the heating mechanism and is used to drive the workpiece through the heating mechanism; the heating mechanism is used to heat and cure the coating layer of the workpiece.

[0023] By utilizing the baffle plate 404 and the flexible swing plate 405 to partially block the discharge port of the receiving hopper 401, the size of the discharge port can be adaptively adjusted according to the size of the workpiece, so that the discharge port can discharge the material evenly. The swing unit drives the flexible swing plate 405 to move, so that the workpiece is evenly laid on the heating and conveying mechanism and transported through the heating mechanism. This allows the workpiece to be evenly heated within the heating mechanism, which can improve the heating and curing effect of the coating layer on the workpiece and reduce the degree of manual intervention. When applied to the coating production line, it can improve the degree of automation.

[0024] Furthermore, the heating and transport mechanism includes a transport drive motor 508, two transport strips 509, and two transport drive shafts 512; the two transport drive shafts 512 are rotatably connected to the opposite ends of the two transport strips 509, and the transport strips 509 pass through the heating mechanism; two sets of transport chain drive pairs are connected between the two transport drive shafts 512; a conveyor belt 511 is connected between the transport transmission chains of the two sets of transport chain drive pairs; a conveyor support plate 513 for supporting the upper side of the conveyor belt 511 is connected and fixed between the upper edges of the two transport strips 509; the transport drive motor 508 drives one of the transport drive shafts 512 to rotate through the transport chain drive pairs.

[0025] The transport drive motor 508 drives one of the transport drive shafts 512 to rotate, thereby causing the two sets of transport chain transmission pairs to drive the conveyor belt 511 to operate, realizing the transport of the workpiece. At the same time, the transport support plate 513 supports the upper side of the conveyor belt 511, which can effectively prevent the support conveyor belt 511 from sagging, and at the same time has good air permeability.

[0026] Furthermore, inclined plates 403 are installed opposite each other on the loading side of the two transport strips 509 to guide the workpieces to the conveyor belt 511. The inclined plates 403 are used to prevent the workpieces from being thrown out of the heated transport mechanism.

[0027] Furthermore, the heating mechanism includes a heating tunnel 501, an exhaust fan 507, a main exhaust duct 504, and multiple hot air fans 503; a heating transport mechanism passes through the heating tunnel 501; tunnel supports 510 are provided at the bottom of the heating tunnel 501; each hot air fan 503 is installed at intervals on the top of the heating tunnel 501 to blow hot air into the heating tunnel 501; the exhaust fan 507 is installed on the top surface of the heating tunnel 501, and the main exhaust duct 504 is connected to the air inlet of the exhaust fan 507; multiple exhaust ports 505 are provided at the bottom of the heating tunnel 501, and each exhaust port 505 is connected to the main exhaust duct 504 through a branch exhaust duct 506; a temperature sensor 502 with its detection end extending into the heating tunnel 501 is installed through the heating tunnel 501.

[0028] Hot air is blown into the heating transport mechanism inside the heating tunnel 501 by hot air blower 503, so that the coating layer of the workpiece on the heating transport mechanism is heated and cured. The exhaust port 505, branch exhaust pipe 506, main exhaust pipe 504 and exhaust fan 507 are used to extract the gas in the heating tunnel 501. The output port of exhaust fan 507 can be connected to a gas treatment device to treat the toxic and harmful gases generated during the drying process and reduce the emission of harmful gases.

[0029] Furthermore, the movable mounting unit includes a U-shaped limiting frame 419, a movable plate 413, and two movable seats 414; a movable guide rod 416 is horizontally fixed on the receiving hopper 401; two movable clamping pulleys 415 that clamp the movable guide rods 416 are rotatably mounted on the movable seats 414; both movable seats 414 are fixed on the upper edge of the movable plate 413; the U-shaped limiting frame 419 is fixed on the receiving hopper 401 and is parallel to the movable guide rod 416; the lower edge of the movable plate 413 extends movably between the U-shaped limiting frame 419 and the receiving hopper 401; multiple pressing rollers 417 that travel and press on the movable plate 413 are rotatably mounted on the U-shaped limiting frame 419; the upper edge of the flexible swing plate 405 is fixed on the lower edge of the movable plate 413.

[0030] Two movable clamping pulleys 415 clamp the movable guide rod 416, allowing the movable seat 414 to slide on the movable guide rod 416, thus achieving movable installation of the upper edge of the movable plate 413. The cooperation between the movable plate 413, the U-shaped limiting frame 419, and the pressing roller 417 enables movable installation of the lower edge of the movable plate 413, thereby achieving movable installation of the flexible swing piece 405, allowing the swing unit to drive the flexible swing piece 405 to swing.

[0031] Furthermore, the swing unit includes a swing drive motor 412 and a drive disk 411; the swing drive motor 412 is mounted on one of the receiving support columns 402; the drive disk 411 is coaxially mounted on the output shaft of the swing drive motor 412; two swing drive rods 408 are vertically arranged on the movable plate 413; a swing connecting rod 409 is connected and fixed between the two swing drive rods 408; a rotating connecting rod 410 is eccentrically mounted on the drive disk 411 with its end rotatably mounted on the swing connecting rod 409.

[0032] The swing drive motor 412 drives the drive disk 411 to rotate, and the drive disk 411 drives the swing connecting rod 409 to swing through the rotating connecting rod 410, thereby driving the movable plate 413 to swing, thus realizing the swing drive of the flexible swing plate 405.

[0033] Furthermore, the swing unit also includes an opening adjustment screw 406; an opening adjustment tube is horizontally fixed to the lower end of the two swing drive rods 408; the opening adjustment screw 406 passes through the opening adjustment tube, and two clamping and positioning nuts 407 that clamp the opening adjustment tube are screwed onto the opening adjustment screw 406; an opening adjustment rod 418 is horizontally fixed to the lower side of the flexible swing plate 405; one end of the opening adjustment screw 406 is fixed to the opening adjustment rod 418.

[0034] By utilizing the cooperation between the opening adjustment screw 406, the opening adjustment tube, and the two clamping and positioning nuts 407, the position of the opening adjustment rod 418 can be adjusted, thereby adjusting the degree of obstruction of the lower edge of the flexible swing plate 405 to the discharge port of the hopper 401 as needed.

[0035] In the tunnel heating device provided by this utility model, the swing drive motor 412 and the transport drive motor 508 are both existing stepper motors; the hot air fan 503 is an existing hot air fan; the exhaust fan 507 is an existing exhaust fan; and the temperature sensor 502 is an existing digital display temperature sensor.

[0036] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A tunnel-type heating device, characterized in that: The system includes a material spreading mechanism, a heating and transporting mechanism, and a heating mechanism. The material spreading mechanism includes a receiving hopper (401), a swinging unit, and a flexible swinging plate (405). The receiving hopper (401) is installed on the loading end of the heating and transporting mechanism via a receiving support column (402). The flexible swinging plate (405) is movably installed on the receiving hopper (401) via a movable mounting unit, with its lower edge used to partially block the discharge port of the receiving hopper (401). A matching baffle (404) is vertically fixed on the side edge opposite to the discharge port of the receiving hopper (401) and the flexible swinging plate (405). The swinging unit is used to drive the flexible swinging plate (405) to swing, so that the workpiece is laid flat on the loading end of the heating and transporting mechanism. The heating and transporting mechanism passes through the heating mechanism and is used to drive the workpiece through the heating mechanism. The heating mechanism is used to heat and cure the coating layer of the workpiece.

2. The tunnel heating device according to claim 1, characterized in that: The heating and transport mechanism includes a transport drive motor (508), two transport strips (509), and two transport drive shafts (512); the two transport drive shafts (512) are rotatably connected to the opposite ends of the two transport strips (509); the transport strips (509) pass through the heating mechanism; two sets of transport chain transmission pairs are connected between the two transport drive shafts (512); a conveyor belt (511) is connected between the transport transmission chains of the two sets of transport chain transmission pairs; the transport drive motor (508) drives one of the transport drive shafts (512) to rotate through the transport chain transmission pairs.

3. The tunnel heating device according to claim 2, characterized in that: Inclined plates (403) that guide the workpiece to the conveyor belt (511) are installed opposite each other on the loading side of the two transport strips (509).

4. The tunnel heating device according to claim 1, characterized in that: The heating mechanism includes a heating tunnel (501), an exhaust fan (507), a main exhaust pipe (504), and multiple hot air fans (503); the heating transport mechanism runs through the heating tunnel (501); each hot air fan (503) is installed intermittently on the heating tunnel (501) to blow hot air into the heating tunnel (501); the exhaust fan (507) is installed on the heating tunnel (501), and the main exhaust pipe (504) is connected to the air inlet of the exhaust fan (507); multiple exhaust ports (505) are provided on the heating tunnel (501) and connected to the main exhaust pipe (504) through branch exhaust pipes (506); and a temperature sensor (502) is installed on the heating tunnel (501).

5. The tunnel heating device according to claim 1, characterized in that: The movable mounting unit includes a movable plate (413) and two movable seats (414); a movable guide rod (416) and a U-shaped limiting frame (419) are horizontally fixed on the receiving hopper (401); the two movable seats (414) are slidably mounted on the movable guide rod (416); the upper edge of the movable plate (413) is fixed on the two movable seats (414), and the lower edge is movably inserted between the U-shaped limiting frame (419) and the receiving hopper (401); a flexible swing plate (405) is fixed on the lower edge of the movable plate (413).

6. The tunnel heating device according to claim 1, characterized in that: The swing unit includes a swing drive motor (412) and a drive disk (411); the swing drive motor (412) is mounted on the receiving support column (402); the drive disk (411) is coaxially mounted on the output shaft of the swing drive motor (412); two swing drive rods (408) are provided on the movable plate (413); a swing connecting rod (409) is connected to the two swing drive rods (408); a rotating connecting rod (410) with its end rotatably mounted on the drive disk (411) is eccentrically mounted on the drive disk (411).

7. The tunnel heating device according to claim 6, characterized in that: The swing unit also includes an opening adjustment screw (406); an opening adjustment tube is horizontally fixed on the lower end of the swing drive rod (408); an opening adjustment rod (418) is horizontally fixed on the lower side of the flexible swing plate (405); the opening adjustment screw (406) is coaxially and adjustablely mounted on the opening adjustment tube, and its end is fixed on the opening adjustment rod (418).

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