An automobile part production line paint drying device

Abstract

The application relates to the technical field of paint drying equipment, and particularly discloses a paint drying equipment for automobile part production lines, which comprises a drying box, a hot air fan and a flow divider, the drying box comprises a box body and a box door, the hot air fan is communicated with the box body and used for providing hot air to the box body; the flow divider is located in the box body and separates the box body into a drying chamber and an air inlet chamber, a plurality of flow divider holes are uniformly arranged on the flow divider, one end of the drying chamber away from the box door is provided with a push plate used for controlling the volume of the drying chamber to be increased or decreased, a push driving device used for driving the push plate to slide is arranged outside the box body, an internal guide rail is arranged at the bottom of the drying chamber, and a carrying frame used for transporting parts is slidably arranged on the internal guide rail. The application has the effects of reducing the processing difficulty of thickened paint film and improving the processing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paint drying equipment, and particularly relates to a paint drying equipment for automobile part production line. BACKGROUND

[0002] During the production and processing of automobiles, the chassis, bottom plate, shell and other parts need to be subjected to paint spraying treatment. During paint spraying, the thickness of the paint film is strictly controlled, and different automobile models have different requirements for the thickness of the paint film.

[0003] Currently, when automobile parts are subjected to paint spraying, the automobile parts are transferred to a spraying chamber for painting. The thickness of the sprayed paint film is usually between 25 um and 30 um. After spraying is completed, the automobile parts are transferred to a drying equipment for drying and then to the next production process.

[0004] For the related art described above, when the thickness of the paint film is required to be 40 um or 60 um, or even 80 um to 200 um, it is difficult to achieve the required thickness of the paint film through one-time spraying and drying, resulting in a relatively large processing difficulty and a relatively low processing efficiency. SUMMARY

[0005] In order to improve the problem of a relatively large processing difficulty and a relatively low processing efficiency when the thickness of the paint film is increased, the present application provides a paint drying equipment for automobile part production line.

[0006] The paint drying equipment for automobile part production line provided by the present application adopts the following technical scheme:

[0007] The application discloses an automobile part production line paint drying device, which comprises a drying box, a hot air blower and a flow distribution plate, wherein the drying box comprises a box body and a box door; the box body is internally divided into an air inlet cavity, a drying cavity and an air return cavity; the air inlet cavity is located at the top of the box body; the air return cavity is located at the bottom of the box body; the drying cavity is located at the middle of the box body; a plurality of air inlet holes are arranged on the box body between the air inlet cavity and the drying cavity; a plurality of air return holes are arranged on the box body between the air return cavity and the air inlet cavity; one side of the drying cavity close to the box door is provided with an opening; the hot air blower is communicated with the air inlet cavity and used for providing hot air to the air inlet cavity; the flow distribution plate is located in the drying cavity and separates the drying cavity into a drying chamber and an air inlet chamber; the drying chamber is located at one side of the flow distribution plate close to the air return cavity; the air inlet chamber is located at the other side of the flow distribution plate; a plurality of flow distribution holes are uniformly arranged on the flow distribution plate; a plurality of air outlet holes are arranged on the box body between the drying chamber and the air return cavity; one end of the drying chamber away from the box door is provided with a push plate used for controlling the volume of the drying chamber to be larger or smaller; the push plate slides between an air inlet state and an air outlet state in the drying chamber; in the air inlet state, the push plate slides away from the box door; in the air outlet state, the push plate slides close to the box door; the box body is externally provided with a push driving device used for driving the push plate to slide; the drying cavity is internally provided with a control switch; in the air inlet state, the control switch controls the flow distribution holes to be opened and the air outlet holes to be closed; in the air outlet state, the control switch controls the flow distribution holes to be closed and the air outlet holes to be opened; the bottom of the drying chamber is provided with an internal guide rail; and a carrying frame used for transporting parts is slidably arranged on the internal guide rail.

[0008] By adopting the technical scheme, when the paint film of the automobile part needs to be thickened, the automobile part is first painted, then the painted automobile part is placed on the carrying frame and slid into the drying box for efficient and uniform drying, so that the automobile part is conveniently painted again, thereby reducing the processing difficulty of thickening the paint film; when the drying box dries the automobile part, the hot air blower provides hot air to the air inlet cavity, the hot air in the air inlet cavity enters the drying cavity through the air inlet holes, the flow distribution plate and the flow distribution holes on the flow distribution plate uniformly distribute the hot air in the air inlet chamber to the drying chamber, thereby uniformly drying the automobile part in the drying chamber, and the reciprocating sliding of the push plate and the control of the opening and closing of the flow distribution holes and the air return holes by the control switch can accelerate the circulation of air in the drying chamber, thereby improving the drying efficiency and the processing efficiency of thickening the paint film.

[0009] Optionally, the control switch comprises a first switch and a second switch, the first switch is used for controlling the opening and closing of the flow distribution holes, and the second switch is used for controlling the opening and closing of the air outlet holes.

[0010] By adopting the technical scheme, the first switch controls the opening and closing of the flow distribution holes, and the second switch controls the opening and closing of the air outlet holes, so that the flow distribution holes are conveniently opened while the air outlet holes are closed, or the flow distribution holes are conveniently closed while the air outlet holes are opened.

[0011] Optionally, the first switch comprises a first sliding plate, the first sliding plate is the same shape as the shunt plate and is attached to the shunt plate, the first sliding plate is slidingly connected to the box, a plurality of first accommodation holes are formed in the first sliding plate, the number of the first accommodation holes is the same as the number of the shunt holes, and one first accommodation hole corresponds to one shunt hole; when the shunt hole is opened, the first accommodation hole communicates with the shunt hole; when the shunt hole is closed, the first accommodation hole is misaligned with the shunt hole.

[0012] By adopting the above technical scheme, when the first switch controls the opening and closing of the shunt hole, the first sliding plate is slid to make the first accommodation hole communicate with the shunt hole, i.e. the shunt hole is opened; the first accommodation hole is misaligned with the shunt hole, i.e. the shunt hole is closed; the first sliding plate can control the opening and closing of the plurality of shunt holes, and the operation is convenient and efficient.

[0013] Optionally, the second switch comprises a second sliding plate, the second sliding plate is attached to the inner wall of the box, the second sliding plate is slidingly connected to the box, a plurality of second accommodation holes are formed in the second sliding plate, the number of the second accommodation holes is the same as the number of the exhaust holes, and one second accommodation hole corresponds to one exhaust hole; when the exhaust hole is opened, the second accommodation hole communicates with the exhaust hole; when the exhaust hole is closed, the second accommodation hole abuts against the exhaust hole.

[0014] By adopting the above technical scheme, when the second switch controls the opening and closing of the exhaust hole, the second sliding plate is slid to make the second accommodation hole communicate with the exhaust hole, i.e. the exhaust hole is opened; the second accommodation hole is misaligned with the exhaust hole, i.e. the exhaust hole is closed; the second sliding plate can control the opening and closing of the plurality of exhaust holes, and the operation is convenient and efficient.

[0015] Optionally, the first accommodation hole and the second accommodation hole are both strip-shaped holes.

[0016] By adopting the above technical scheme, when the push plate is in the air intake state or the air exhaust state, the first accommodation hole and the second accommodation hole are strip-shaped holes, which can increase the stroke of the air intake state or the air exhaust state, thereby improving the effect of accelerating the air circulation in the drying chamber.

[0017] Optionally, the first sliding plate and the second sliding plate are both connected to the push plate.

[0018] By adopting the above technical scheme, when the push plate slides, the first sliding plate and the second sliding plate slide together, i.e. the push drive controls the push plate, the first sliding plate and the second sliding plate to slide together, thereby improving the control efficiency.

[0019] Optionally, the return air hole is provided with an exhaust fan for pumping the air in the return air cavity to the air intake cavity.

[0020] By adopting the above technical scheme, the exhaust fan can accelerate the flow of the air in the return air cavity towards the air intake cavity, further improving the speed of the air circulation in the box, thereby improving the drying efficiency of the paint film.

[0021] Optionally, the return air cavity is provided with a plurality of adsorption members for adsorbing moisture.

[0022] By adopting the above technical scheme, when the air in the drying chamber enters the return air cavity, the water vapor evaporated from the paint film of the automobile parts is also taken into the return air cavity, and the adsorption members adsorb the moisture, thereby reducing the moisture content of the air in the entire box.

[0023] Optionally, the adsorption members are in sliding connection with the box, and the box is provided with a relief hole for mounting or removing the adsorption members.

[0024] By adopting the above technical scheme, the adsorption members slide in the box and are mounted and removed through the relief hole, so that the adsorption members are convenient to replace, thereby ensuring the adsorption capacity of the adsorption members.

[0025] Optionally, a side of the drying box close to the box door is provided with an external guide rail for sliding the carrier out of the drying box, and the box door is a sliding door.

[0026] By adopting the above technical scheme, the external guide rail facilitates the sliding of the carrier out of the drying box, which is convenient for the operator to store or take the parts on the carrier, and the box door is a sliding door, which can reduce the possibility of interference between the box door and the external guide rail.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By providing the drying box, the guide rail and the carrier, after the automobile parts are painted once, the parts are conveyed to the inside of the drying box for drying through the carrier, which is convenient for the automobile parts to be painted for the second time, thereby reducing the processing difficulty of thickening the paint film;

[0029] 2. By providing the flow distribution plate, the push plate and the control switch, when the drying box dries the paint film on the automobile parts, the flow distribution plate uniformly distributes the hot air, so that the paint film is uniformly dried; the push plate and the control switch are used in combination, which improves the air circulation speed in the box, thereby improving the drying efficiency;

[0030] 3. By providing the adsorption members and the relief hole, when the air in the drying chamber flows into the return air cavity, the adsorption members adsorb the moisture in the air in the return air cavity, thereby reducing the moisture content in the drying box; the adsorption members are mounted or removed through the relief hole, which is convenient for replacing the adsorption members to ensure the adsorption effect of the adsorption members. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0033] Figure 2 is a partial cross-sectional view of the embodiment of the present application;

[0034] Figure 3 is another partial cross-sectional view of the embodiment of the present application;

[0035] Figure 4 is a schematic diagram of the air intake state of the push plate of the embodiment of the present application;

[0036] Figure 5 is a schematic diagram of the air exhaust state of the push plate of the embodiment of the present application;

[0037] Figure 6 is a schematic diagram of the air intake state of the push plate of the embodiment of the present application; Figure 1 is an enlarged schematic diagram of part A in FIG. 8.

[0038] Reference signs: 1, box body; 11, air intake cavity; 12, drying cavity; 121, air intake chamber; 122, drying chamber; 123, pressure stabilizing hole; 13, air return cavity; 14, flow dividing plate; 141, flow dividing hole; 15, air intake hole; 16, air exhaust hole; 17, air return hole; 18, air exhaust fan; 19, avoiding hole; 191, cover plate; 2, box door; 3, hot air machine; 4, carrier frame; 41, internal guide rail; 42, external guide rail; 43, guide wheel; 5, push plate; 6, push driving; 7, first sliding plate; 71, first accommodating hole; 8, second sliding plate; 81, second accommodating hole; 9, suction accessory; 91, suction frame; 92, suction core; 93, handle. DETAILED DESCRIPTION

[0039] The following will be described in detail in combination with the drawings attached Figures 1-4 The present application will be further described in detail.

[0040] The embodiment of the present application discloses an automobile part production line paint drying equipment. Referring to Figure 1The automobile part production line paint drying device comprises a drying box, a hot air blower 3 and a carrier frame 4. The drying box comprises a box body 1 and a box door 2. The box body 1 is in the shape of a rectangle as a whole. One end of the box body 1 is provided with an opening. The box door 2 is arranged at the opening end of the box body 1. The hot air blower 3 is fixed to the top of the box body 1 and is connected with the box body 1 through a ventilation pipe. The box body 1 is internally provided with an internal guide rail 41 and externally provided with an external guide rail 42. The internal guide rail 41 and the external guide rail 42 are arranged in line. The carrier frame 4 slides along the internal guide rail 41 and the external guide rail 42, that is, the carrier frame 4 slides in and out of the box body 1 through the internal guide rail 41 and the external guide rail 42, so as to conveniently send the automobile parts after paint spraying into the box body 1 or send the automobile parts after paint film drying out of the box body 1, facilitate the automobile parts to be painted for the second time, and thus reduce the processing difficulty of thickening the paint film of the automobile parts.

[0041] With reference to Figure 1 The internal guide rail 41 and the external guide rail 42 are both arranged perpendicularly to the end face of the box body 1 provided with the opening. The top of the internal guide rail 41 and the top of the external guide rail 42 are both equally spaced in the length direction of the internal guide rail 41 and the external guide rail 42 and are provided with a plurality of groups of guide wheels 43. Each group of guide wheels 43 comprises two guide wheels 43 symmetrically arranged in the length direction of the internal guide rail 41 or the external guide rail 42. The two guide wheels 43 are rotatably connected with the internal guide rail 41 or the external guide rail 42 through the same rotating shaft. The axis of the rotating shaft is parallel to the width direction of the external guide rail 42. The size and height of the guide wheels 43 on the internal guide rail 41 and the external guide rail 42 are the same. The two guide wheels 43 of the same group are integrally formed with a blocking ring at the end far away from each other. The carrier frame 4 is a rectangular frame body. When the carrier frame 4 slides, it is embedded between the blocking rings on the two guide wheels 43 of the same group and abuts against the guide wheels 43.

[0042] With reference to Figure 1 The box door 2 is a sliding door and is a double door. The box door 2 is slidably connected with the box body 1 through the cooperation of a sliding block and a sliding rail. The box door 2 is arranged as a sliding door, which can reduce the possibility of interference between the box door 2 and the external guide rail 42 and make the external guide rail 42 relatively close to the internal guide rail 41, thereby improving the stability of the carrier frame 4 when sliding.

[0043] With reference to Figure 2 The box body 1 is internally divided into an air inlet cavity 11, a drying cavity 12 and an air return cavity 13. The air inlet cavity 11 is located at the top of the box body 1. The hot air blower 3 is communicated with the air inlet cavity 11 and provides hot air for the air inlet cavity 11. The drying cavity 12 is located at the middle of the box body 1. The air return cavity 13 is located at the bottom of the box body 1. Specifically, the air inlet cavity 11 is in the shape of a U as a whole. The air return cavity 13 is in the shape of a rectangle as a whole. The drying cavity 12 is located between the air inlet cavity 11 and the air return cavity 13.

[0044] With reference to Figure 1The drying cavity 12 is open at one end close to the box door 2, i.e. the opening of the box body 1, so as to facilitate the delivery of the automobile parts into the drying cavity 12 for drying.

[0045] With reference to Figure 2 A plurality of groups of air inlet holes 15 are arranged on the box body 1 between the air inlet cavity 11 and the drying cavity 12, and are arranged at equal intervals along the depth direction of the drying cavity 12. The air inlet holes 15 are rectangular holes. In the present embodiment, each group of air inlet holes 15 includes four air inlet holes 15, and the four air inlet holes 15 are arranged in two groups on the two sides of the drying cavity 12, respectively. An exhaust fan 18 is embedded in each air inlet hole 15. The exhaust fan 18 in the air inlet hole 15 exhausts air from the air inlet cavity 11 to the drying cavity 12.

[0046] With reference to Figure 2 A plurality of air outlet holes 16 are arranged on the box body 1 between the drying cavity 12 and the air return cavity 13. The air outlet holes 16 are circular holes, and are arranged along the length direction of the internal guide rail 41. The air in the drying cavity 12 enters the air return cavity 13 through the air outlet holes 16, so that the moisture generated by the drying of the paint film is brought into the air return cavity 13.

[0047] With reference to Figure 2 A flow distribution plate 14 is arranged in the drying cavity 12. The flow distribution plate 14 is a U-shaped plate with a reverse buckle. The end of the flow distribution plate 14 away from the box door 2 is welded to the inner wall of the box body 1. The end of the flow distribution plate 14 close to the box door 2 is flush with the end of the box body 1 with the opening. The bottom of the flow distribution plate 14 is welded to the box body 1, i.e. the flow distribution plate 14 divides the drying cavity in the box body 1 into two chambers. The side of the flow distribution plate 14 close to the air return cavity 13 is the drying chamber 122, and the side of the flow distribution plate 14 close to the air inlet cavity 11 is the air inlet chamber 121. A plurality of flow distribution holes 141 are uniformly arranged on the flow distribution plate 14, and the flow distribution holes 141 are circular holes. The hot air from the air inlet cavity 11 enters the air inlet chamber 121, and then is distributed through the flow distribution holes 141 and uniformly flows into the drying chamber 122, so as to uniformly dry the automobile parts in the drying chamber 122.

[0048] With reference to Figure 3, the drying chamber 122 is provided with a push plate 5, the push plate 5 is parallel to the box door 2, the side of the push plate 5 is attached to the baffle 14 and the inner wall of the box body 1, the push plate 5 slides along the long edge direction of the baffle 14, and the push plate 5 is always located on the side away from the box door of the exhaust hole 16 and the shunt hole 141. The side away from the box door 2 of the push plate 5 is provided with a push driving 6, the push driving 6 is a hydraulic cylinder or a pneumatic cylinder, in this embodiment, the push driving 6 is a hydraulic cylinder, the cylinder body of the push driving 6 is fixed to the side away from the box door 2 of the box body 1 through bolts, and the piston end of the push driving 6 penetrates through the box body 1 and is fixedly connected with the push plate 5 through a connecting plate and bolts. When the push driving 6 drives the push plate 5 to slide, when the push plate 5 slides close to the box door 2, the volume of the drying chamber 122 is reduced, so that the air in the drying chamber 122 is expanded outward, when the push plate 5 slides away from the box door 2, the volume of the drying chamber 122 is increased, so that the drying chamber 122 absorbs external air.

[0049] Referring to Figure 2 , the return air cavity 13 is provided with a plurality of adsorption accessories 9, in this embodiment, the adsorption accessories 9 are provided with two, which are located on both sides of the return air cavity 13. The adsorption accessory 9 includes an adsorption frame 91 and an adsorption core 92, the adsorption frame 91 is a rectangular frame body, the adsorption core 92 is an active carbon rectangular block, and the adsorption core 92 is embedded in the adsorption frame 91. When the air entering the return air cavity passes through the adsorption accessory 9, the adsorption core 92 absorbs the moisture in the air, thereby reducing the water content of the air in the box body 1, and further improving the drying efficiency.

[0050] Referring to Figure 2 , a plurality of return air holes 17 are formed on the box body 1 between the return air cavity 13 and the air inlet cavity 11, the return air hole 17 is a rectangular hole, and the return air hole 17 is embedded with an exhaust fan 18, the exhaust fan 18 in the return air hole 17 exhausts the air in the return air cavity 13 to the air inlet cavity 11, so that the air in the return air cavity 13 after adsorbing the moisture enters the air inlet cavity 11, thereby reducing the heat loss in the drying process.

[0051] Referring to Figure 3 , a stable hole 123 is formed at the bottom of the side away from the box door 2 of the box body 1. When the push plate 5 slides, the cavity between the side away from the box door 2 of the push plate 5 and the box body 1 is kept in communication with the outside through the stable hole 123, so that the air pressure in the cavity is kept stable, thereby reducing the possibility of resistance to the push plate 5 due to the change of air pressure in the cavity when the push plate 5 slides.

[0052] Referring to Figure 3 , the drying chamber is provided with a control switch for controlling the opening and closing of the shunt hole 141 and the exhaust hole 16, the control switch includes a first switch and a second switch, the first switch is used to control the opening and closing of the shunt hole, and the second switch is used to control the opening and closing of the exhaust hole, the first switch is the first sliding plate 7, and the second switch is the second sliding plate 8, the first sliding plate 7 and the second sliding plate 8 are both arranged to slide along the long edge direction of the baffle 14.

[0053] Specifically, referring to Figure 3 , the first sliding plate 7 is the same shape as the distribution plate 14, and is in the shape of a whole U, and is attached to the side of the distribution plate 14 close to the return air cavity 13. A plurality of first accommodation holes 71 are formed in the first sliding plate 7, the number of first accommodation holes 71 is the same as the number of distribution holes 141, and one first accommodation hole 71 corresponds to one distribution hole 141. When the first accommodation hole 71 communicates with the corresponding distribution hole 141, it is an open distribution hole 141, and when the first accommodation hole 71 is misaligned with the corresponding distribution hole 141, it is a closed distribution hole 141.

[0054] Referring to Figure 3 , the second sliding plate 8 is a rectangular plate, and the second sliding plate 8 is provided with two and is located on both sides of the drying chamber 122. A plurality of second accommodation holes 81 are formed in the second sliding plate 8, the number of second accommodation holes 81 is consistent with the number of exhaust holes 16, and one second accommodation hole 81 corresponds to one exhaust hole 16. When the second accommodation hole 81 communicates with the corresponding exhaust hole 16, it is an open exhaust hole 16, and when the second accommodation hole 81 is misaligned with the corresponding exhaust hole 16, it is a closed exhaust hole 16.

[0055] Referring to Figure 3 , the first sliding plate 7 is attached to and welded to the push plate 5 at the end away from the box door 2, and the bottom is attached to and welded to the second sliding plate 8. The second sliding plate 8 is attached to and welded to the push plate 5 at the end away from the box door 2, so that when the push drive 6 drives the push plate 5 to slide, the first sliding plate 7 and the second sliding plate 8 slide together with the push plate 5, saving resource consumption.

[0056] Referring to Figure 4 and Figure 5 , the first accommodation hole 71 and the second accommodation hole 81 are both strip-shaped holes with circular arcs at both ends. In this embodiment, the diameter of the distribution hole 141 is the same size as the diameter of the exhaust hole 16, and the arc diameter of the first accommodation hole 71 and the second accommodation hole 81 at both ends is the same size as the diameter of the distribution hole 141. The length of the first accommodation hole 71 and the second accommodation hole 81 is greater than or equal to twice the diameter of the distribution hole 141, and in this embodiment, the length of the first accommodation hole 71 and the second accommodation hole 81 is greater than three times the diameter of the distribution hole 141, thereby increasing the duration of the air inlet state and the exhaust state.

[0057] Referring to Figure 4When the push plate 5 is in the extreme position away from the cabinet door 2, the shunt hole 141 is located in the range of the first let hole 71, and the shunt hole 141 is tangent to the end of the first let hole 71 close to the cabinet door 2, and at this time the exhaust hole 16 is located on the side of the second let hole 81 close to the cabinet door 2. At this time, the push drive 6 pushes the push plate 5 to move close to the cabinet door 2, so that the first slide plate 7 and the second slide plate 8 move close to the cabinet door 2, the first let hole 71 moves to the left relative to the shunt hole 141, so that the shunt hole 141 is gradually disengaged from the first let hole 71 and is blocked by the first slide plate 7, and the exhaust hole 16 gradually enters the range of the second let hole 81, that is, the shunt hole 141 is closed and the exhaust hole 16 is opened. At this time, the volume of the drying chamber 122 is reduced, thereby achieving the effect of promoting the air in the drying chamber 122 to be discharged to the return air cavity 13.

[0058] Referring to Figure 5 When the push plate 5 is in the extreme position away from the cabinet door 2, the shunt hole 141 is located in the range of the first let hole 71, and the shunt hole 141 is tangent to the end of the first let hole 71 close to the cabinet door 2, and at this time the exhaust hole 16 is located on the side of the second let hole 81 close to the cabinet door 2. At this time, the push drive 6 pushes the push plate 5 to move close to the cabinet door 2, so that the first slide plate 7 and the second slide plate 8 move close to the cabinet door 2, the first let hole 71 moves to the left relative to the shunt hole 141, so that the shunt hole 141 is gradually disengaged from the first let hole 71 and is blocked by the first slide plate 7, and the exhaust hole 16 gradually enters the range of the second let hole 81, that is, the shunt hole 141 is closed and the exhaust hole 16 is opened. At this time, the volume of the drying chamber 122 is reduced, thereby achieving the effect of promoting the air in the drying chamber 122 to be discharged to the return air cavity 13.

[0059] Referring to Figure 6 The cabinet 1 is provided with an avoiding hole 19 on the side close to the cabinet door, and the number of the avoiding hole 19 is consistent with the number of the suction member 9. In the embodiment, the number of the avoiding hole 19 is two, and the suction frame 91 is embedded in the avoiding hole 19 on the side close to the cabinet door 2. A handle 93 is welded on the end of the suction frame 91 close to the cabinet door 2, which facilitates the suction frame 91 to be taken out of the cabinet 1 through the avoiding hole 19 and the suction core 92 to be replaced, so as to ensure the suction effect of the suction member 9. The avoiding hole 19 is hinged with a cover plate 191, and the side close to the avoiding hole 19 of the cover plate 191 is bonded with a polyurethane heat preservation layer, which is not shown in the figure. When the drying cabinet is running, the avoiding hole 19 is blocked by the cover plate 191, and the heat preservation layer can reduce the possibility of heat loss from the avoiding hole 19 in the cabinet 1.

[0060] In the embodiment, the cabinet 1, the cabinet door 2, the shunt plate 14, the push plate 5, the first slide plate 7 and the second slide plate 8 are all provided with a polyurethane heat preservation layer to reduce the possibility of heat loss in the cabinet 1.

[0061] The implementation principle of the paint drying device for automobile part production line is as follows: the automobile parts after the first painting are placed on the carrier 4, the carrier 4 is sent into or out of the drying box through the internal guide rail 41 and the external guide rail 42, the automobile parts in the drying box are uniformly and efficiently dried, so that the second painting is facilitated, and the processing difficulty of increasing the paint film thickness is reduced; when the drying box dries the paint film, the shunt plate 14 uniformly shunts the hot air, the paint film is uniformly dried, the push plate 5 and the control switch are used in cooperation, the circulation of the hot air in the box body 1 is promoted, and the drying efficiency is improved.

[0062] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The use of "first", "second", "third" and similar words in the specification and claims of the present application does not represent any order, quantity or importance, but is only used to distinguish different components. "One" or "a" and similar words do not represent a quantity limitation, but represent the existence of at least one. "Including" or "containing" and similar words mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0063] The above are optional embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An automotive parts production line paint drying apparatus, characterized by: The drying box, the hot air machine (3) and the flow distribution plate (14), the drying box includes the box (1) and the box door (2), the box (1) is divided into the air inlet chamber (11), the drying chamber (12) and the return air chamber (13) inside, the air inlet chamber (11) is located at the top of the box (1), the return air chamber (13) is located at the bottom of the box (1), the drying chamber (12) is located in the middle of the box (1), a plurality of air inlet holes (15) are provided on the box (1) between the air inlet chamber (11) and the drying chamber (12), a plurality of return air holes (17) are provided on the box (1) between the return air chamber (13) and the air inlet chamber (11), the side of the drying chamber (12) close to the box door (2) is provided with an opening; The hot air machine (3) is communicated with the air inlet chamber (11) and is used for providing hot air to the air inlet chamber (11); The flow distribution plate (14) is located in the drying chamber (12) and separates the drying chamber (12) into the drying chamber (122) and the air inlet chamber (121), the drying chamber (122) is located on the side of the flow distribution plate (14) close to the return air chamber (13), and the air inlet chamber (121) is located on the other side of the flow distribution plate (14); A plurality of flow distribution holes (141) are uniformly arranged on the flow distribution plate (14), and a plurality of exhaust holes (16) are arranged on the box (1) between the drying chamber (122) and the return air chamber; One end of the drying chamber (122) away from the box door (2) is provided with a push plate (5) for controlling the volume of the drying chamber (122) to be larger or smaller, the push plate (5) slides between the air inlet state and the air exhaust state in the drying chamber (122), in the air inlet state, the push plate (5) slides away from the box door (2), and in the air exhaust state, the push plate (5) slides close to the box door (2); The box (1) is externally provided with a push driving (6) for driving the push plate (5) to slide; The drying chamber (12) is provided with a control switch, in the air inlet state, the control switch controls the flow distribution hole (141) to be opened and the exhaust hole (16) to be closed, and in the air exhaust state, the control switch controls the flow distribution hole (141) to be closed and the exhaust hole (16) to be opened. The drying chamber (122) is provided with an internal guide rail (41) at the bottom, and a carrier (4) for transporting parts is slidably arranged on the internal guide rail (41); the control switch comprises a first switch and a second switch, the first switch is used for controlling the opening and closing of the shunt hole (141), and the second switch is used for controlling the opening and closing of the air exhaust hole (16); the first switch comprises a first sliding plate (7), the first sliding plate (7) is the same shape as the shunt plate (14) and is attached to the shunt plate (14), the first sliding plate (7) is slidably connected with the box body (1), a plurality of first notches (71) are formed in the first sliding plate (7), the number of the first notches (71) is the same as that of the shunt holes (141), and one first notch (71) corresponds to one shunt hole (141); when the shunt hole (141) is opened, the first notch (71) is communicated with the shunt hole (141); when the shunt hole (141) is closed, the first notch (71) is misaligned with the shunt hole (141); the second switch comprises a second sliding plate (8), the second sliding plate (8) is attached to the inner wall of the box body (1), the second sliding plate (8) is slidably connected with the box body (1), a plurality of second notches (81) are formed in the second sliding plate (8), the number of the second notches (81) is the same as that of the air exhaust holes (16), and one second notch (81) corresponds to one air exhaust hole (16); when the air exhaust hole (16) is opened, the second notch (81) is the same as the air exhaust hole (16); when the air exhaust hole (16) is closed, the second notch (81) abuts against the air exhaust hole (16); the first notch (71) and the second notch (81) are both strip-shaped holes; The first sliding plate (7) is attached to and fixedly welded with the push plate (5) at one end away from the box door (2), and is attached to and fixedly welded with the second sliding plate (8) at the bottom, and one end of the second sliding plate (8) away from the box door (2) is attached to and fixedly welded with the push plate (5), so that when the push drive (6) drives the push plate (5) to slide, the first sliding plate (7) and the second sliding plate (8) slide together with the push plate (5); The diameter of the shunt hole (141) is the same as that of the air exhaust hole (16), the arc diameter of both ends of the first notch (71) and the second notch (81) is the same as that of the shunt hole (141), and the length of the first notch (71) and the second notch (81) is greater than or equal to twice the diameter of the shunt hole (141).

2. The paint drying apparatus for an automobile part production line according to claim 1, characterized by: The return air hole (17) is provided with an air exhaust fan (18) for pumping air in the return air cavity (13) to the air inlet cavity (11).

3. The paint drying apparatus for an automobile part production line according to claim 1, characterized by: A plurality of adsorption accessories (9) are arranged in the return air cavity (13) for adsorbing moisture.

4. The paint drying apparatus for an automobile part production line according to claim 3, characterized by: The adsorption accessory (9) is slidably connected with the box body (1), and the box body (1) is provided with an avoiding hole (19) for installing or removing the adsorption accessory (9).

5. The paint drying apparatus for an automobile part production line according to claim 1, characterized by: The side of the drying box close to the box door (2) is provided with an external guide rail (42) for sliding the carrier (4) out of the drying box, and the box door (2) is a sliding door.

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