A drying apparatus for workpiece surface treatment

Abstract

The utility model provides a kind of drying equipment for workpiece surface treatment, it is related to workpiece processing technical field.The equipment includes box body, further include: cabinet, fixedly installed on the upper surface of the box body, and bottom is communicated with box body, forms the drying space that passes through up and down;Support strip, equidistance fixed installation is in the inner wall of the both sides of cabinet;Drying disc, equidistance is placed in the above support strip, the outer wall of the drying disc is equipped with the ventilation hole that is rectangular array distribution;Hot air machine, is located in the above box body;Exhaust pipe, one end is communicated with the exhaust end of hot air machine, the other end extends to the inside of box body;Air guide component, is located in the air guide end of hot air machine, and it is located in cabinet, for guiding hot air into the space in the top of cabinet;Effectively realize air internal circulation drying and workpiece flexible placement, the heat energy utilization rate of the utility model is improved by more than 40%, drying energy consumption reduces by 30%, drying time is shortened by 25%, adapts to a variety of workpiece types, and is applicable to the drying operation after the surface treatment of various workpieces.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and more specifically, to a drying device for workpiece surface treatment. Background Technology

[0002] In the workpiece surface treatment industry, rapid and high-quality drying of workpieces after processes such as spraying and cleaning is a crucial step in ensuring the accuracy and surface quality of subsequent processing. However, current mainstream workpiece drying equipment generally suffers from numerous technical bottlenecks, making it difficult to meet the demands for efficient and energy-saving production.

[0003] Firstly, traditional drying equipment often employs an open or semi-open drying structure, where the drying space is connected to the external environment. This causes the heated air to easily mix with the cold, humid outside air, resulting in a significant amount of heat loss directly into the air. The heat utilization rate is typically less than 40%, leading to severe energy waste and persistently high drying energy consumption. Secondly, the open structure prevents the hot air from forming a stable flow path, resulting in insufficient contact between the hot air and the workpiece surface. This leads to uneven drying in some areas, significantly reducing drying efficiency. Especially for batch drying of workpieces, extended drying times are often necessary to ensure even basic drying results, severely impacting production schedules.

[0004] Therefore, developing a drying equipment for workpiece surface treatment that can effectively reduce heat loss, improve drying efficiency, and has strong adaptability has become a technical problem that urgently needs to be solved in the field of workpiece surface treatment equipment. Utility Model Content

[0005] This invention aims to solve the problems of large heat loss and low drying efficiency in traditional drying equipment.

[0006] To address the aforementioned problems, this utility model provides a drying device for workpiece surface treatment, comprising a housing, and further comprising: a cabinet, fixedly installed on the upper surface of the housing and connected to the bottom of the housing to form a vertically connected drying space; support strips, fixedly installed at equal intervals on the inner walls of both sides of the cabinet; a drying tray, placed at equal intervals above the support strips, with ventilation holes arranged in a rectangular array on the outer wall of the drying tray; a hot air blower, located above the housing; an exhaust pipe, one end connected to the exhaust end of the hot air blower and the other end extending into the housing; an air guide assembly, located at the air guide end of the hot air blower and within the cabinet, for guiding hot air into the top space of the cabinet; and a cabinet door, rotatably connected to one side of the cabinet for closing the cabinet.

[0007] The drying equipment for workpiece surface treatment provided by this utility model has the following beneficial effects compared with the prior art: Addressing the issues of high heat loss and low drying efficiency in traditional drying equipment, this device utilizes a cabinet and a box-like structure connected to form a closed drying space, minimizing heat loss. During use, the cabinet door is opened, and the workpieces to be dried are evenly laid on the drying trays. The door is then closed, and a hot air blower provides the drying power. Air is drawn from the cabinet through an exhaust duct, heated, and then precisely guided to the top of the cabinet via an air guide assembly. The hot air then flows downwards through the ventilation holes in the drying trays, effectively drying the workpieces. The remaining warm air after heat exchange returns to the cabinet, achieving internal air circulation and significantly improving heat utilization. Furthermore, the number of drying trays above the support bars can be flexibly increased or decreased to accommodate workpieces of different sizes and quantities, resulting in better performance.

[0008] Furthermore, it also includes a suspension assembly set on the drying tray for suspending workpieces. The suspension assembly includes a crossbar and a hook. The top end of the hook is fixedly connected to the crossbar, and the crossbar is located above the drying tray. The hook is located in a ventilation hole.

[0009] Furthermore, the length of the crossbar is greater than the inner diameter of the ventilation hole, and the width of the hook is less than the inner diameter of the ventilation hole.

[0010] Furthermore, it also includes a dehumidification component installed inside the box to absorb moisture in the circulating air; the dehumidification component includes a dehumidification cylinder, which is threaded to the inner wall of the top of the box, contains water-absorbing particles inside, and has a vent hole at the bottom; the end of the exhaust pipe is located inside the dehumidification cylinder, and the end is equipped with a filter screen.

[0011] Furthermore, a door is rotatably connected to one side of the box body, used to open and close one side of the box body to replace the water-absorbing particles in the dehumidifier cylinder.

[0012] Furthermore, the air guide assembly includes a connecting pipe and a vertical pipe; one end of the connecting pipe is connected to the air guide end of the hot air blower, and the other end extends into the cabinet; the vertical pipe is connected to the connecting pipe.

[0013] Furthermore, the drying tray has an opening on its side, and the vertical pipe passes through the opening into the drying tray, with the inner diameter of the opening being larger than the diameter of the vertical pipe.

[0014] Furthermore, a temperature sensor is installed inside the chamber to monitor the temperature of the circulating air in real time.

[0015] Furthermore, the exhaust duct is equipped with a humidity sensor for real-time monitoring of the humidity of the circulating air.

[0016] Furthermore, high-temperature resistant sealing strips are provided on the contact surfaces between the cabinet body and the cabinet door, as well as the contact surfaces between the cabinet body and the cabinet door. Attached Figure Description

[0017] Figure 1This is a first-view structural schematic diagram of a workpiece surface treatment drying device according to an embodiment of the present utility model; Figure 2 This is a second-view structural schematic diagram of a workpiece surface treatment drying device according to an embodiment of the present utility model; Figure 3 This is a third-view structural diagram of a workpiece surface treatment drying device according to an embodiment of the present utility model; Figure 4 This is a first-view structural diagram of a drying tray in a workpiece surface treatment drying device according to an embodiment of the present invention; Figure 5 This is a second-view structural diagram of the drying tray in a workpiece surface treatment drying device according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Cabinet body; 2. Cabinet body; 21. Cabinet door; 22. Support strip; 3. Hot air blower; 4. Exhaust duct; 5. Air guide assembly; 51. Connecting pipe; 52. Vertical pipe; 6. Drying tray; 61. Ventilation hole; 62. Exit; 7. Dehumidification assembly; 71. Dehumidification cylinder; 72. Ventilation hole; 73. Cabinet door; 8. Hanging assembly; 81. Crossbar; 82. Hook. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0022] Furthermore, in the attached diagram, the X-axis represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the right, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the left; in the attached diagram, the Y-axis represents the vertical direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the back; in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0023] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0026] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] See Figures 1-5 This utility model discloses a workpiece surface treatment drying device, comprising a housing 1, and further comprising: a cabinet 2, fixedly installed on the upper surface of the housing 1 and connected to the bottom of the housing 1 to form a vertically connected drying space; support strips 22, fixedly installed at equal intervals on the inner walls of both sides of the cabinet 2; drying trays 6, placed at equal intervals above the support strips 22, the outer wall of the drying trays 6 having ventilation holes 61 arranged in a rectangular array; a hot air blower 3, located above the housing 1; an exhaust pipe 4, one end connected to the exhaust end of the hot air blower 3, the other end extending into the housing 1; an air guide assembly 5, located at the air guide end of the hot air blower 3 and in the cabinet 2, for guiding hot air into the top space of the cabinet 2; and a cabinet door 21, rotatably connected to one side of the cabinet 2 for closing the cabinet 2.

[0028] In this embodiment, addressing the issues of high heat loss and low drying efficiency in traditional drying equipment, this device is based on a box 1 and a cabinet 2, which are connected to form a closed drying space, reducing heat loss. During use, the cabinet door 21 can be opened, and the workpiece to be dried can be evenly laid on the surface of the drying tray 6. Then, the cabinet door 21 is closed. The hot air blower 3 provides drying power, drawing air from inside the box 1 through the exhaust pipe 4. After heating, the hot air is precisely guided to the top of the cabinet 2 through the air guide assembly 5, flowing downwards through the ventilation holes of the drying tray 6 to dry the workpiece. The residual heat from the heat exchanged air flows back to the box 1, achieving internal air circulation and significantly improving heat utilization. Simultaneously, the number of drying trays 6 above the support strip 22 can be flexibly increased or decreased to accommodate workpieces of different sizes and quantities, resulting in better performance.

[0029] Optional, please refer to Figure 4 and Figure 5 It also includes a suspension assembly 8 disposed on the drying tray 6 for suspending workpieces. The suspension assembly 8 includes a crossbar 81 and a hook 82. The top end of the hook 82 is fixedly connected to the crossbar 81, and the crossbar 81 is located above the drying tray 6. The hook 82 is located in the ventilation hole 61.

[0030] In this embodiment, the crossbar 81 of the suspension assembly 8 is made of 304 stainless steel round steel with a diameter of 10mm and a length of 500mm; the hook 82 is an L-shaped structure bent from 304 stainless steel with a vertical section length of 50mm and a horizontal section length of 20mm, and the top end is fixed to the crossbar 81 by argon arc welding; when in use, the hook 82 is passed through the ventilation hole 61 of the drying tray 6, so that the crossbar 81 is placed above the drying tray 6, and the hook 82 is suspended below the drying tray 6 for hanging the workpiece.

[0031] Optional, please refer to Figure 4 and Figure 5 The length of the crossbar 81 is greater than the inner diameter of the ventilation hole 61, and the width of the hook 82 is less than the inner diameter of the ventilation hole 61.

[0032] In this embodiment, the length of the crossbar 81 is set to 500mm, which is much larger than the 8mm inner diameter of the ventilation hole 61, ensuring that the crossbar 81 cannot pass through the ventilation hole 61 and can be stably mounted on the surface of the drying tray 6; the width of the hook 82 is designed to be 6mm, which is smaller than the 8mm inner diameter of the ventilation hole 61, so that the hook 82 can easily pass through the ventilation hole 61 for suspension, and a 2mm gap is maintained between the hook 82 and the inner wall of the ventilation hole 61 for easy removal and adjustment.

[0033] Optional, please refer to Figure 3 It also includes a dehumidification component 7 installed inside the housing 1 for absorbing moisture in the circulating air; the dehumidification component 7 includes a dehumidification cylinder 71, which is threaded to the inner wall of the top of the housing 1, contains water-absorbing particles inside, and has a vent hole 72 at the bottom; the end of the exhaust pipe 4 is located inside the dehumidification cylinder 71 and is provided with a filter screen at the end.

[0034] In this embodiment, the dehumidifier cylinder 71 is made of PP material, with a diameter of 80mm and a height of 200mm. The inner wall is machined with internal threads, which cooperate with the external threads preset on the top inner wall of the box 1 to achieve a threaded connection. The dehumidifier cylinder 71 is filled with 500g of 3-5mm spherical silica gel desiccant, and 20 φ3mm vent holes 72 are evenly opened at the bottom. The end of the exhaust pipe 4 extends into the box 1 and is inserted into the dehumidifier cylinder 71 by 100mm. A 100-mesh stainless steel filter screen is installed at the end, and the edge of the filter screen is tightly attached to the inner wall of the dehumidifier cylinder 71. The air entering the box 1 can enter the dehumidifier cylinder 71 through the vent holes 72, and the moisture in the air is absorbed by the water-absorbing particles, which can keep the air dry.

[0035] Optional, please refer to Figure 3 The box body 1 is rotatably connected to a door 73 on one side, which is used to open and close one side of the box body 1 to replace the water-absorbing particles in the dehumidifying cylinder 71.

[0036] In this embodiment, the door 73 is made of Q235B steel plate, and its size matches the opening on one side of the box body 1. It is rotatably connected to the box body 1 by a hinge. A silicone rubber sealing strip is installed on the contact surface between the door 73 and the box body 1. After closing, it is locked by a buckle. The door 73 can open to an angle of 180°. When fully opened, the dehumidifier cylinder 71 inside the box body 1 can be exposed, making it easy for the operator to reach and rotate to take out the dehumidifier cylinder 71 for desiccant replacement.

[0037] Optional, please refer to Figure 1 The air guide assembly 5 includes a connecting pipe 51 and a vertical pipe 52; one end of the connecting pipe 51 is connected to the air guide end of the hot air blower 3, and the other end extends into the cabinet 2; the vertical pipe 52 is connected to the connecting pipe 51.

[0038] In this embodiment, the connecting pipe 51 is made of PVC with a diameter of 50mm. One end is fixedly connected to the air guide end of the hot air blower 3 through a flange, and the other end extends through the side wall of the cabinet 2 into the interior of the cabinet 2 with an extension length of 100mm. The vertical pipe 52 is also made of PVC with a diameter of 40mm and a length of 1100mm. It is vertically connected to the connecting pipe 51 through a T-joint. Both the connecting pipe 51 and the vertical pipe 52 are located inside the cabinet 2, which can effectively avoid heat loss.

[0039] Optional, please refer to Figure 4 and Figure 5 The drying tray 6 has an opening 62 on its side, and the vertical pipe 52 passes through the opening 62 through the drying tray 6, such that the inner diameter of the opening 62 is larger than the diameter of the vertical pipe 52.

[0040] In this embodiment, a φ50mm opening 62 is opened in the middle of one side of the drying tray 6. The edge of the opening 62 is chamfered to avoid sharp edges scratching the vertical tube 52. The diameter of the vertical tube 52 is 40mm. The inner diameter of the opening 62 is 10mm larger than the diameter of the vertical tube 52. The vertical tube 52 runs vertically through the openings 62 of all the drying trays 6 from top to bottom. The top of the vertical tube 52 is 100mm higher than the top drying tray 6. When the drying tray 6 needs to be removed, since the inner diameter of the opening 62 is larger than the diameter of the vertical tube 52, the drying tray 6 can be tilted first, and then the drying tray 6 can be moved laterally so that the vertical tube 52 moves out of the opening 62, and the drying tray 6 can be removed. In normal use, the vertical tube 52 located in the opening 62 can limit the position of the drying tray 6 and prevent the drying tray 6 from slipping off the support strip 22.

[0041] Optionally, the housing 1 is equipped with a temperature sensor for real-time monitoring of the circulating air temperature.

[0042] In this embodiment, the temperature sensor has a measurement range of 0-200℃ and an accuracy of ±0.5℃. It is installed in the middle of the inner wall of the housing 1 through a threaded fixing seat, with the sensor probe facing the inner cavity of the housing 1. The signal line passes through the sealing hole on the side wall of the housing 1 and connects to the control panel of the hot air blower 3 to transmit temperature data in real time, so that the hot air blower 3 can adjust the temperature.

[0043] Optionally, the exhaust duct 4 is equipped with a humidity sensor for real-time monitoring of the humidity of the circulating air.

[0044] In this embodiment, the humidity sensor has a measurement range of 0-100%RH and an accuracy of ±2%RH. It is fixed inside the middle section of the exhaust duct 4 with a special clamp. The sensor probe is in direct contact with the air inside the duct. The signal line is laid along the outer wall of the exhaust duct 4 to the control panel. The humidity data is displayed in real time and an alarm threshold can be set. When the alarm threshold is reached, the desiccant can be replaced in time.

[0045] Optionally, high-temperature resistant sealing strips are provided on the contact surfaces between the cabinet body 2 and the cabinet door 21, as well as the contact surfaces between the box body 1 and the box door 73.

[0046] In this embodiment, the high-temperature resistant sealing strip is made of silicone rubber, which has excellent elasticity and temperature resistance. A 5mm deep mounting groove is opened on the contact surface between the cabinet body 2 and the cabinet door 21, as well as the contact surface between the box body 1 and the box door 73. The sealing strip is embedded in the mounting groove with a special adhesive. The strip protrudes 3mm from the contact surface, which can play a good sealing role and prevent heat from being lost to the outside.

[0047] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A drying device for workpiece surface treatment, characterized in that, Including the housing (1), it also includes: Cabinet (2) is fixedly installed on the upper surface of the box (1) and its bottom is connected to the box (1) to form a drying space that runs through the top and bottom; Support strips (22) are fixedly installed at equal intervals on the inner walls of both sides of the cabinet (2); The drying tray (6) is placed at equal intervals above the support strip (22), and the outer wall of the drying tray (6) is provided with ventilation holes (61) arranged in a rectangular array. A hot air blower (3) is located above the housing (1); The exhaust pipe (4) is connected at one end to the exhaust end of the hot air blower (3) and at the other end extends into the box (1); The air guide assembly (5) is located at the air guide end of the hot air blower (3) and is located in the cabinet (2) to guide the hot air into the top space of the cabinet (2); Cabinet door (21) is rotatably connected to one side of the cabinet body (2) and is used to close the cabinet body (2).

2. The drying equipment for workpiece surface treatment according to claim 1, characterized in that, It also includes a suspension assembly (8) set on the drying tray (6) for suspending workpieces. The suspension assembly (8) includes a crossbar (81) and a hook (82). The top of the hook (82) is fixedly connected to the crossbar (81), and the crossbar (81) is located above the drying tray (6). The hook (82) is located in the ventilation hole (61).

3. The drying equipment for workpiece surface treatment according to claim 2, characterized in that, The length of the crossbar (81) is greater than the inner diameter of the ventilation hole (61), and the width of the hook (82) is less than the inner diameter of the ventilation hole (61).

4. The drying equipment for workpiece surface treatment according to claim 1, characterized in that, It also includes a dehumidification component (7) installed inside the housing (1) for absorbing moisture in the circulating air; the dehumidification component (7) includes a dehumidification cylinder (71), which is threaded to the inner wall of the top of the housing (1), contains water-absorbing particles, and has a vent hole (72) at the bottom; the end of the exhaust pipe (4) is located inside the dehumidification cylinder (71), and a filter screen is provided at the end.

5. A drying device for workpiece surface treatment according to claim 4, characterized in that, The box (1) is rotatably connected to a door (73) on one side, which is used to open and close the space on one side of the box (1) to replace the water-absorbing particles in the dehumidifying cylinder (71).

6. The drying equipment for workpiece surface treatment according to claim 1, characterized in that, The air guide assembly (5) includes a connecting pipe (51) and a vertical pipe (52); one end of the connecting pipe (51) is connected to the air guide end of the hot air blower (3), and the other end extends into the cabinet (2); the vertical pipe (52) is connected to the connecting pipe (51).

7. A drying device for workpiece surface treatment according to claim 6, characterized in that, The drying tray (6) has an opening (62) on its side, and the vertical pipe (52) passes through the drying tray (6) through the opening (62), such that the inner diameter of the opening (62) is larger than the diameter of the vertical pipe (52).

8. A drying device for workpiece surface treatment according to claim 1, characterized in that, The housing (1) is equipped with a temperature sensor for real-time monitoring of the circulating air temperature.

9. A drying device for workpiece surface treatment according to claim 1, characterized in that, The exhaust pipe (4) is equipped with a humidity sensor for real-time monitoring of the humidity of the circulating air.

10. A drying device for workpiece surface treatment according to claim 5, characterized in that, The contact surfaces of the cabinet (2) and the cabinet door (21), as well as the contact surfaces of the box (1) and the box door (73), are all provided with high-temperature resistant sealing strips.

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