A multi-zone temperature-controlled heating furnace for automobile decorative parts

Abstract

The present invention discloses a multi-zone temperature-controlled heating furnace for automobile decorative parts, comprising an outer box, a workbench located in the outer box, and a plate member placed on the workbench, and also comprising a cylinder at the upper end of the outer box, a push rod located at the output end of the cylinder, a shield located at the lower end of the push rod and enclosed and divided into a plurality of chambers together with the workbench and the plate member, a temperature control unit located on the shield and used for independently controlling the temperature of the chamber, and an air supply assembly located at the upper end of the shield and supplying air to the shield. The multi-zone temperature-controlled heating furnace for automobile decorative parts described in the present invention can realize multi-zone temperature control operation on a plate member, and obtain plates with different properties in each zone, which is convenient for meeting the subsequent stamping requirements of automobile decorative parts; the air curtain-type barrier can achieve a barrier effect without contacting the surface of the plate member, and can avoid deformation of the plate member due to extrusion force compared to the traditional barrier plate, thereby ensuring the subsequent stamping quality of automobile decorative parts; and realize stable heating operation in each zone of the heating furnace.

Description

Technical Field

[0001] The invention relates to the technical field of automobile decorative parts, and in particular to a multi-zone temperature-controlled heating furnace for automobile decorative parts. Background Art

[0002] Automobile decorative parts have the function of decorating and beautifying automobiles, and the quality of their decorative effects directly affects the interior and exterior image of the automobile. In the production process of automobile decorative parts, stamping dies are often used to stamp plates to obtain automobile decorative parts of the required shape, and the plates often need to be placed in a heating furnace for heating before stamping to facilitate subsequent stamping operations. However, the existing heating furnaces often have the following problems when heating plates: although the existing heating furnaces are equipped with multiple temperature control chambers, they cannot perform multi-zone temperature control operations on the same plate, and cannot meet the requirements of plates with different properties in different regions after heating, which is inconvenient for subsequent stamping parts to perform stamping operations on different regions of the plate; in addition, the various temperature control chambers of the existing heating furnaces are prone to heat exchange, which affects the stable operation of the heating furnace. Summary of the invention

[0003] The main purpose of the present invention is to provide a multi-zone temperature-controlled heating furnace for automobile decorative parts, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A multi-zone temperature-controlled heating furnace for automobile decorative parts, comprising an outer box, a workbench located in the outer box, and a plate member placed on the workbench, and also comprising a cylinder at the upper end of the outer box, a push rod located at the output end of the cylinder, a shield located at the lower end of the push rod and enclosed and divided together with the workbench and the plate member into a plurality of chambers, a temperature control unit located on the shield and used for independently controlling the temperature of the chamber, and an air supply assembly located at the upper end of the shield and supplying air to the shield;

[0006] Wherein, the shield is a structure with an opening at the lower end, and the lower end of the push rod extends to the inside of the outer box body.

[0007] As a further optimization solution of the present invention, the shield includes a heat insulation shield connected to the lower end of the cylinder and having an opening at the lower end, and a plurality of blocking members located in the heat insulation shield and used to prevent heat exchange between adjacent chambers.

[0008] As a further optimization scheme of the present invention, the barrier comprises a crossbeam, vertical bars at both ends of the crossbeam, a group of No. 1 fans and a group of No. 2 fans located inside the vertical bars, and a grille located on the side of the No. 2 fan facing away from the vertical bars.

[0009] As a further optimization solution of the present invention, the lower end of the grille is a downwardly inclined oblique structure, and the side of the oblique opening facing the vertical rod is higher than the side of the oblique opening facing away from the vertical rod.

[0010] As a further optimization scheme of the present invention, the air supply assembly includes a plurality of isolation boxes located at the upper end of the heat insulation cover, heating pipes located in the isolation boxes, and exhaust pipes and air inlet pipes located between adjacent isolation boxes and used to connect two adjacent isolation boxes.

[0011] As a further optimization scheme of the present invention, the lower end of the exhaust pipe extends to the inside of the vertical rod and is connected to the output end of the No. 1 fan, and the lower end of the air inlet pipe extends to the inside of the vertical rod and is connected to the inside of the No. 2 fan.

[0012] As a further optimization scheme of the present invention, the temperature control unit includes a heating furnace body located on the shield and placed in the chamber, a controller located on the heating furnace body and electrically connected to the heating furnace body, a temperature sensor located on the controller and electrically connected to the controller, and two output pipes located on the heating furnace body;

[0013] Among them, one of the output tubes is provided with a heating coil placed in the chamber, and the interior of the other output tube is communicated with the interior of the heating tube.

[0014] As a further optimization scheme of the present invention, the workbench includes a slider located at the side end of the table body and slidably connected to the inner wall of the outer box body, a slot opened on the table body and matching the protective cover, and a placement cavity opened on the table body and used to place sheet materials.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by using the protective cover, the temperature control unit and the workbench in coordination, the temperature control unit can independently control the temperature of each chamber, thereby realizing multi-zone temperature control of a sheet material, and obtaining sheets with different properties in each zone, which is convenient for meeting the subsequent stamping requirements of automobile decorative parts.

[0017] 2. In the present invention, the wind curtain type barrier can achieve the barrier effect without contacting the surface of the sheet member. Compared with the traditional barrier plate, it can avoid the deformation of the contact area between the sheet member and the barrier plate due to extrusion force, thereby ensuring the subsequent stamping quality of the automobile decorative parts; and the grille has a downward inclined bevel structure, which can ensure that the wind wall formed by the gas is in close contact with the outer surface of the sheet member, avoiding heat exchange caused by voids.

[0018] 3. In the present invention, by connecting the air supply component and the temperature control unit, the gas is supplied through the air inlet pipe, and the gas exhausted by the No. 1 fan is returned to the isolation box through the exhaust pipe for recycling, so that the gas source used by the barrier is mixed with the gas of the same temperature in the adjacent chamber. The temperature of the gas source used by the barrier is close to the gas temperature in the adjacent chamber, which can effectively reduce heat loss, reduce the impact of the barrier on the temperature in the chamber, and realize stable heating operation in each area of ​​the heating furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal structure of a multi-zone temperature-controlled heating furnace for automobile decorative parts of the present invention;

[0020] Figure 2 A longitudinal cross-sectional view of a protective cover of a multi-zone temperature-controlled heating furnace for automobile decorative parts according to the present invention;

[0021] Figure 3 A side view of a barrier member of a multi-zone temperature-controlled heating furnace for automobile decorative parts of the present invention;

[0022] Figure 4 It is a structural schematic diagram of an air supply component of a multi-zone temperature-controlled heating furnace for automobile decorative parts of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a temperature control unit of a multi-zone temperature control heating furnace for automobile decorative parts of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a workbench of a multi-zone temperature-controlled heating furnace for automobile decorative parts of the present invention;

[0025] Figure 7 The present invention is a schematic diagram of the external structure of a multi-zone temperature-controlled heating furnace for automobile decorative parts.

[0026] In the figure: 1. outer box; 2. workbench; 3. protective cover; 4. cylinder; 5. push rod; 6. plate member; 7. temperature control unit; 8. air supply assembly; 9. chamber; 21. slot; 22. placement cavity; 23. slider; 24. table; 31. heat insulation cover; 32. barrier; 321. crossbeam; 322. vertical rod; 323. No. 1 fan; 324. No. 2 fan; 325. grille; 326. oblique mouth; 71. heating furnace body; 72. controller; 73. temperature sensor; 74. output pipe; 75. heating coil; 81. isolation box; 82. heating pipe; 83. exhaust pipe; 84. intake pipe. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] Example 1

[0029] like Figure 1As shown, a multi-zone temperature-controlled heating furnace for automobile decorative parts comprises an outer box 1, a workbench 2 located in the outer box 1, and a plate member 6 placed on the workbench 2, and also comprises a cylinder 4 at the upper end of the outer box 1, a push rod 5 located at the output end of the cylinder 4, a shield 3 located at the lower end of the push rod 5 and enclosed and divided together with the workbench 2 and the plate member 6 into a plurality of chambers 9, a temperature control unit 7 located on the shield 3 and used for independently controlling the temperature of the chamber 9, and an air supply assembly 8 located at the upper end of the shield 3 and supplying air to the shield 3;

[0030] The shield 3 is an open structure at the lower end, and the lower end of the push rod 5 extends to the inside of the outer box body 1.

[0031] like Figure 2 and Figure 3 As shown, the shield 3 includes a heat shield 31 connected to the lower end of the cylinder 4 and opened at the lower end, and a plurality of blocking members 32 located in the heat shield 31 and used to prevent heat exchange between adjacent chambers 9; the blocking member 32 includes a crossbeam 321, vertical rods 322 located at both ends of the crossbeam 321, a group of No. 1 fans 323 and a group of No. 2 fans 324 located inside the vertical rods 322, and a grille 325 located on the side of the No. 2 fan 324 facing away from the vertical rods 322; the lower end of the grille 325 is a downwardly inclined oblique opening 326 structure, and the oblique opening 326 is provided at the bottom of the grille 325. The side of 26 facing the vertical rod 322 is higher than the side of the oblique opening 326 facing away from the vertical rod 322. The chambers 9 are blocked by a barrier 32. The gas is extracted by the No. 2 fan 324 and discharged through the grille 325. The discharged gas enters the No. 1 fan 323, thereby forming a wind wall that blocks heat exchange between the chambers 9. The lower end of the grille 325 is a downwardly inclined oblique opening 326 structure, which can ensure that the wind wall formed by the gas is in close contact with the outer surface of the plate member 6 to avoid heat exchange caused by voids.

[0032] like Figure 4-7As shown, the air supply assembly 8 includes a plurality of isolation boxes 81 located at the upper end of the heat insulation cover 31, a heating pipe 82 located in the isolation box 81, an exhaust pipe 83 and an air intake pipe 84 located between adjacent isolation boxes 81 and used to connect two adjacent isolation boxes 81; the lower end of the exhaust pipe 83 extends to the inside of the vertical rod 322 and is connected to the output end of the No. 1 fan 323, and the lower end of the air intake pipe 84 extends to the inside of the vertical rod 322 and communicates with the inside of the No. 2 fan 324; the temperature control unit 7 includes a heating furnace body 71 located on the protective cover 3 and placed in the chamber 9, a controller 72 located on the heating furnace body 71 and electrically connected to the heating furnace body 71, a temperature sensor 73 located on the controller 72 and electrically connected to the controller 72, the controller 72 model is AT89C51, the temperature sensor 73 model is TN901, and two output pipes 74 are located on the heating furnace body 71; wherein, A heating coil 75 placed in the chamber 9 is provided on one output pipe 74, and the interior of the other output pipe 74 is connected to the interior of the heating pipe 82; the workbench 2 includes a slider 23 located at the side end of the table body 24 and slidably connected to the inner wall of the outer box body 1, a slot 21 opened on the table body 24 and matched with the protective cover 3, and a placement cavity 22 opened on the table body 24 for placing the plate member 6. The gas required for the barrier 32 is the gas generated by heating the isolation box 81 by the adjacent heating furnace body 71. The gas is supplied through the air inlet pipe 84, and the gas discharged by the No. 1 fan 323 flows back to the isolation box 81 through the exhaust pipe 83 for recycling. The gas source used by the barrier 32 is a mixture of gases with the same temperature in the adjacent chamber 9. Therefore, the gas source temperature used by the barrier 32 is close to the gas temperature in the adjacent chamber 9, which can effectively reduce heat loss.

[0033] It should be noted that the present invention is a multi-zone temperature-controlled heating furnace for automobile decorative parts. When it is necessary to heat the plate used for automobile decorative parts, the whole plate can be placed in the placement cavity 22 on the workbench 2 first, and then the slide block 23 is used to slide and connect with the inner wall of the outer box body 1 to move the workbench 2 to the inside of the outer box body 1, and then the cylinder 4 is driven to operate, and the cylinder 4 drives the shield 3 on the push rod 5 to descend, so that the heat insulation shield 31 is engaged with the slot 21, and the cavity enclosed by the workbench 2, the plate member 6 and the shield 3 is realized. At this time, the operator synchronously drives the temperature control unit 7 The heating furnace body 71 operates synchronously with the barrier member 32 on the shield 3, and the operation of the heating furnace body 71 makes the connected heating coil 75 and the heating tube 82 synchronously heat up the corresponding chambers 9 and the isolation box 81. During the heating process, the temperature sensor 73 in the chamber 9 transmits the detection data to the controller 72. The controller 72 controls the operation of the heating furnace body 71 according to the data detected by the temperature sensor 73, and realizes the independent temperature control operation in each chamber 9, thereby realizing the multi-region temperature control operation of a sheet member 6, and obtaining a sheet with different properties in each region, which is convenient for meeting the subsequent stamping requirements of automobile decorative parts; and the chamber 9 The barrier 32 is used for blocking, and the gas is extracted by the second fan 324 and discharged through the grille 325. The discharged gas enters the first fan 323, so that a wind wall that blocks heat exchange is formed between each chamber 9. The lower end of the grille 325 is a downwardly inclined oblique mouth 326 structure, which can ensure that the wind wall formed by the gas is in close contact with the outer surface of the plate member 6 to avoid heat exchange caused by voids. The wind curtain type barrier 32 does not need to contact the surface of the plate member 6 to achieve the blocking effect. Compared with the traditional barrier plate, it can avoid the contact area between the plate member 6 and the barrier plate due to extrusion. The barrier 32 is deformed by force to ensure the subsequent stamping quality of the automobile decorative parts; the gas required for the barrier 32 is the gas generated by the adjacent heating furnace 71 heating the isolation box 81, and the gas is supplied through the air inlet pipe 84. The gas exhausted by the No. 1 fan 323 flows back to the isolation box 81 through the exhaust pipe 83 for recycling. The gas source used by the barrier 32 is a mixture of the gas at the same temperature as the gas in the adjacent chamber 9. Therefore, the temperature of the gas source used by the barrier 32 is close to the gas temperature in the adjacent chamber 9, which can effectively reduce heat loss and reduce the influence of the barrier 32 on the temperature in the chamber 9.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-zone temperature-controlled heating furnace for automobile decorative parts, comprising an outer box (1), a workbench (2) located in the outer box (1), and a plate member (6) placed on the workbench (2), characterized in that: It also includes a cylinder (4) at the upper end of the outer box (1), a push rod (5) located at the output end of the cylinder (4), a shield (3) located at the lower end of the push rod (5) and enclosed together with the workbench (2) and the plate member (6) to form a plurality of chambers (9), a temperature control unit (7) located on the shield (3) and used to independently control the temperature of the chambers (9), and an air supply assembly (8) located at the upper end of the shield (3) and supplying air to the shield (3); The shield (3) is a structure with an opening at the lower end, and the lower end of the push rod (5) extends into the interior of the outer box (1); The shield (3) comprises a heat shield (31) connected to the lower end of the cylinder (4) and having an opening at the lower end, and a plurality of blocking members (32) located in the heat shield (31) and used to prevent heat exchange between adjacent chambers (9); The barrier (32) comprises a crossbeam (321), vertical rods (322) located at both ends of the crossbeam (321), a group of No. 1 fans (323) and a group of No. 2 fans (324) located inside the vertical rods (322), and a grille (325) located on the side of the No. 2 fans (324) facing away from the vertical rods (322); The air supply assembly (8) comprises a plurality of isolation boxes (81) located at the upper end of the heat insulation cover (31), a heating pipe (82) located in the isolation box (81), an exhaust pipe (83) and an air intake pipe (84) located between adjacent isolation boxes (81) and used to connect two adjacent isolation boxes (81); The lower end of the exhaust pipe (83) extends to the inside of the vertical rod (322) and is connected to the output end of the first fan (323), and the lower end of the air intake pipe (84) extends to the inside of the vertical rod (322) and is connected to the inside of the second fan (324).

2. The multi-zone temperature-controlled heating furnace for automobile decoration parts according to claim 1, characterized in that: The lower end of the grille (325) is a downwardly inclined oblique opening (326) structure, wherein the side of the oblique opening (326) facing the vertical rod (322) is higher than the side of the oblique opening (326) facing away from the vertical rod (322).

3. The multi-zone temperature-controlled heating furnace for automobile decoration parts according to claim 1, characterized in that: The temperature control unit (7) comprises a heating furnace body (71) located on the protective cover (3) and placed in the chamber (9), a controller (72) located on the heating furnace body (71) and electrically connected to the heating furnace body (71), a temperature sensor (73) located on the controller (72) and electrically connected to the controller (72), and two output pipes (74) located on the heating furnace body (71); One of the output tubes (74) is provided with a heating coil (75) placed in the chamber (9), and the interior of the other output tube (74) is communicated with the interior of the heating tube (82).

4. The multi-zone temperature-controlled heating furnace for automobile decoration parts according to claim 1, characterized in that: The workbench (2) comprises a table body (24), a sliding block (23) located at a side end of the table body (24) and slidably connected to the inner wall of the outer box body (1), a slot (21) formed on the table body (24) and matching the shield (3), and a placement cavity (22) formed on the table body (24) and used for placing a plate member (6).

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