Workpiece drying device

Abstract

The utility model discloses a workpiece drying device which comprises a drying box and a workpiece conveying device. A workpiece conveying device is arranged in the drying box in the front-back direction, and a feeding port and a discharging port are formed in the front portion and the back portion of the drying box correspondingly. Wherein sliding doors are installed on the feeding port and the discharging port respectively, each sliding door comprises a door leaf and a door leaf air cylinder, each door leaf air cylinder is fixedly installed on the top of the drying box, and an output shaft of each door leaf air cylinder is fixedly connected to the top of the corresponding door leaf; the top center of the drying box communicates with an air inlet pipe, and the front and back positions of the bottom of the drying box communicate with an air return pipe; the workpiece conveying device comprises a conveying bracket; due to the arrangement of the sliding door, the phenomenon that hot air escapes from the feed port and the discharge port is reduced; the position of the air return pipe is close to the feeding port and the discharging port, so that air close to the feeding port and the discharging port can be sucked in by the air return pipe, and the situation that hot air escapes from the feeding port and the discharging port is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment, specifically a workpiece drying device. Background Technology

[0002] Drying equipment for spray coating refers to equipment used to dry and cure coatings when processing spray-coated products. Such equipment typically includes components such as a heating system, a conveying system, and a control system, which can provide appropriate temperature and time to complete the drying process of the coating and ensure the quality and performance of the coating.

[0003] For example, the patent with authorization announcement number CN222093900U discloses a drying device for spraying processing, which relates to the field of drying device technology. It includes a main body; multiple hollow rotating shafts are rotatably connected between the inner sides of the main body, and the hollow rotating shafts are driven by sprockets. Conveying rollers are fixedly connected to the outer sides of the hollow rotating shafts. The conveying rollers are set with hollow structures. A motor for driving the rotation of each hollow rotating shaft is set inside the main body. Drying components are symmetrically arranged on both sides of the main body. The drying components generate hot air by rotating the hollow rotating shafts.

[0004] The aforementioned patent, by setting a drying component on the conveyor line, enables simultaneous drying of the workpiece during transport, thereby greatly improving drying efficiency and making it suitable for batch drying. Furthermore, the airflow of the drying component is generated by the operation of the conveyor line, eliminating the need for additional power. Simultaneously, the drying airflow is generated along with the transport, ensuring that the airflow strength and transport speed are well-matched and coordinated, significantly improving the drying effect of the workpiece. However, the disadvantage of the aforementioned patent is that during drying, hot air tends to escape from the inlet and outlet at both the front and rear sections of the main body, resulting in a decrease in drying efficiency.

[0005] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a workpiece drying device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A workpiece drying device includes a drying chamber and a workpiece conveying device; the workpiece conveying device is arranged in the drying chamber along the front-to-back direction, and the drying chamber has an inlet and an outlet at the front and back respectively; a sliding door is installed on the inlet and the outlet respectively, and the sliding door includes a door leaf and a door leaf cylinder, the door leaf cylinder is fixedly installed on the top of the drying chamber, and the output shaft of the door leaf cylinder is fixedly connected to the top of the door leaf.

[0009] An air inlet pipe is connected to the center of the top of the drying box, and a return air pipe is connected to the front and rear of the bottom of the drying box. The return air pipe is located close to the feed inlet and the discharge outlet, so that air near the feed inlet and the discharge outlet will be drawn in by the return air pipe. The return air pipe is connected to the hot air blower through a pipeline, and the air outlet of the hot air blower is connected to the air inlet pipe through a pipeline.

[0010] The workpiece conveying device includes a conveying bracket; the conveying bracket is located inside the drying chamber, and the front and rear ends of the conveying bracket extend out to the inlet and outlet respectively; the front and rear ends of the conveying bracket are respectively rotatably provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are connected by a transmission chain through a sprocket drive, and there are two transmission chains, and several placement plates are fixedly connected between the two transmission chains, and several hanging rods are vertically fixedly connected to the top of the placement plates.

[0011] Furthermore, the drying chamber is rectangular in shape and is fixedly mounted on a support.

[0012] Furthermore, at least two guide wheels are provided on both the left and right sides of the door, and guide rails are provided on the outer side of the guide wheels, with the guide rails fixedly installed on the drying oven.

[0013] Furthermore, the guide wheel is provided with a guide groove, and the guide rail is located in the guide groove. The guide groove and the guide rail work together to prevent the door leaf from shifting forward or backward.

[0014] Furthermore, the interior of the drying oven is also equipped with a baffle plate, which is triangular in shape and located directly below the air inlet opening.

[0015] Furthermore, the drying oven is equipped with two sets of air-guiding fans arranged symmetrically in the center, which are used to blow the hot air guided to the front and rear positions inside the drying oven toward the center position inside the drying oven.

[0016] Furthermore, the inner side of the conveying bracket is also provided with a horizontal support for supporting the transmission chain; the horizontal support is located below the transmission chain.

[0017] Furthermore, the workpiece conveying device also includes a power unit, which includes a horizontal cylinder, which is horizontally fixedly installed on the inner wall of the drying chamber. A horizontal slider is fixedly installed on the output shaft of the horizontal cylinder, and the horizontal slider is slidably arranged on a slide rail, which is fixedly installed on the inner wall of the drying chamber. A vertical cylinder is fixedly installed on the horizontal slider, and a toothed rod is fixedly installed on the output shaft of the vertical cylinder.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The sliding door helps reduce the escape of hot air from the inlet and outlet; the return air duct is located close to the inlet and outlet, so that air near the inlet and outlet will be drawn in by the return air duct, further reducing the escape of hot air from the inlet and outlet. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the workpiece drying device.

[0021] Figure 2 This is a front view of the workpiece drying device.

[0022] Figure 3 This is a side view of the workpiece drying device.

[0023] Figure 4 This is a top view of the workpiece drying device.

[0024] Figure 5 for Figure 2 Sectional view along the AA direction.

[0025] Figure 6 This is a schematic diagram of the workpiece drying device from another angle.

[0026] Figure 7 for Figure 1 A magnified view of a portion of point a.

[0027] Figure 8 This is a schematic diagram of the workpiece drying device after removing part of the drying box structure.

[0028] Figure 9 This is a schematic diagram of the workpiece drying device after the drying chamber has been removed.

[0029] Figure 10 This is a schematic diagram of the power unit in the workpiece drying device. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] Please see Figure 1-10 The workpiece drying device includes a drying box 1 and a workpiece conveying device 2.

[0032] The drying oven 1 is equipped with a workpiece conveying device 2 arranged along the front-to-back direction.

[0033] The drying chamber 1 is rectangular in shape and is fixedly mounted on a support 101. The drying chamber 1 has an inlet 102 and an outlet 103 at its front and rear, respectively. Sliding doors 3 are installed on the inlet 102 and outlet 103, each including a door leaf 301 and a door leaf cylinder 303. The door leaf cylinder 303 is fixedly mounted on the top of the drying chamber 1, and its output shaft is fixedly connected to the top of the door leaf 301. The door leaf cylinder 303 can drive the door leaf 301 to move up and down. During drying operations, the door leaf 301 lowers to reduce the escape of hot air from the inlet 102 and outlet 103.

[0034] At least two guide wheels 302 are provided on both the left and right sides of the door leaf 301, and a guide rail 304 is provided on the outer side of the guide wheel 302. The guide rail 304 is fixedly installed on the drying box 1.

[0035] Specifically, the guide wheel 302 is provided with a guide groove 305, and the guide rail 304 is located in the guide groove 305. The guide groove 305 and the guide rail 304 cooperate to prevent the door leaf 301 from moving back and forth.

[0036] An air inlet pipe 104 is connected to the center of the top of the drying chamber 1, and a return air pipe 105 is connected to the front and rear of the bottom of the drying chamber 1. The return air pipe 105 is located close to the feed inlet 102 and the discharge outlet 103, so that air near the feed inlet 102 and the discharge outlet 103 will be drawn in by the return air pipe 105, further reducing the escape of hot air from the feed inlet 102 and the discharge outlet 103. The return air pipe 105 is connected to the hot air blower 4 through a pipeline, and the air outlet of the hot air blower 4 is connected to the air inlet pipe 104 through a pipeline.

[0037] In this solution, the drying oven 1 is also equipped with a baffle plate 401. The baffle plate 401 is triangular in shape and is located directly below the opening of the air inlet pipe 104.

[0038] Meanwhile, in this solution, the drying box 1 is equipped with two sets of guide fans 402. The two sets of guide fans 402 are arranged symmetrically in the center and are used to blow the hot air that is guided to the front and rear positions inside the drying box 1 toward the center position inside the drying box 1.

[0039] The hot air generated by the hot air blower 4 enters the drying chamber 1 through the air inlet pipe 104, and then is guided to the front and rear positions inside the drying chamber 1 by the guide plate 401; the guide fan 402 blows the hot air guided to the front and rear positions inside the drying chamber 1 toward the center position inside the drying chamber 1; the workpiece is dried by the hot air, and then the cold air enters the hot air blower 4 again through the return air pipe 105.

[0040] The workpiece conveying device 2 includes a conveying bracket 201; the conveying bracket 201 is located inside the drying oven 1, and the front and rear ends of the conveying bracket 201 extend out of the inlet 102 and the outlet 103, respectively.

[0041] The conveying bracket 201 has a first rotating shaft 202 and a second rotating shaft 203 rotatably mounted at its front and rear ends, respectively. A transmission chain 204 is connected between the first rotating shaft 202 and the second rotating shaft 203 via a sprocket drive. There are two transmission chains 204, and several storage plates 205 are fixedly connected between the two transmission chains 204.

[0042] Several hanging rods 206 are also vertically fixed to the top of the shelf 205. The workpiece is placed directly on the hanging rods 206, which helps to reduce the contact area of ​​the workpiece and makes most of the surface of the workpiece suspended, which is beneficial for drying.

[0043] Meanwhile, in this solution, the inner side of the conveying bracket 201 is also provided with a horizontal support part 207 for supporting the transmission chain 204 and preventing the middle section of the transmission chain 204 from sinking; the horizontal support part 207 is located below the transmission chain 204.

[0044] The workpiece conveying device 2 also includes a power unit 210, which includes a horizontal cylinder 211. The horizontal cylinder 211 is horizontally fixedly installed on the inner wall of the drying chamber 1. A horizontal slider 212 is fixedly installed on the output shaft of the horizontal cylinder 211. The horizontal slider 212 is slidably arranged on a slide rail 213, which is fixedly installed on the inner wall of the drying chamber 1. A vertical cylinder 214 is fixedly installed on the horizontal slider 212. A pick tooth 215 is fixedly installed on the output shaft of the vertical cylinder 214.

[0045] When the vertical cylinder 214 extends, the inserter 215 descends and inserts into the transmission chain 204. Then the horizontal cylinder 211 extends and drives the inserter 215 to move through the horizontal slider 212. At this time, the inserter 215 drives the transmission chain 204 to move, thereby driving the shelf 205 to move.

[0046] In this solution, since the drying operation requires the workpiece to stay in the drying box 1 for a long time, the workpiece conveying device 2 does not need to operate at high speed. Therefore, in this solution, a cylinder is used as the power source, which can also meet the requirement of the workpiece conveying device 2 to slowly convey the workpiece.

[0047] When using this utility model, the workpiece is hung on the hanging rod 206, and then the power device 210 is started. The vertical cylinder 214 extends, and the inserting tooth 215 descends and inserts into the transmission chain 204. Then the horizontal cylinder 211 extends and drives the inserting tooth 215 to move through the horizontal slider 212. At this time, the inserting tooth 215 drives the transmission chain 204 to move, and then the workpiece on the shelf 205 is sent into the drying oven 1.

[0048] After the workpiece enters the drying oven 1, the door leaf 301 of the sliding door 3 falls down to reduce the escape of hot air from the inlet 102 and the outlet 103.

[0049] When the hot air blower 4 is started, the hot air generated by the hot air blower 4 enters the drying chamber 1 through the air inlet pipe 104, and then is guided to the front and rear positions inside the drying chamber 1 by the guide plate 401; the guide fan 402 blows the hot air guided to the front and rear positions inside the drying chamber 1 toward the center position inside the drying chamber 1; the workpiece is dried by the hot air.

[0050] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A workpiece drying apparatus comprising a drying chamber and a workpiece conveying device; characterized by, The workpiece conveying device is arranged in the drying box along the front-rear direction, and the drying box is respectively provided with a feeding port and a discharging port at the front and rear thereof; wherein the feeding port and the discharging port are respectively provided with a sliding door, and the sliding door comprises a door leaf and a door leaf cylinder, the door leaf cylinder is fixedly installed on the top of the drying box, and the output shaft of the door leaf cylinder is fixedly connected to the top of the door leaf. The top center of the drying box is provided with an air inlet pipe in communication, and the bottom of the drying box is provided with an air return pipe in communication at the front and rear positions; the position of the air return pipe is close to the feeding port and the discharging port, so that the air near the feeding port and the discharging port is sucked into the air return pipe; the air return pipe is connected to the air heater through a pipeline, and the air outlet of the air heater is connected to the air inlet pipe through a pipeline. The workpiece conveying device comprises a conveying support; the conveying support is located in the drying box, and the front and rear ends of the conveying support respectively extend out of the feeding port and the discharging port; the front and rear ends of the conveying support are respectively provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are connected by a transmission chain through a chain wheel transmission; the transmission chain has two transmission chains, and a plurality of storage plates are fixedly connected between the two transmission chains; the top of the storage plate is also vertically fixedly connected with a plurality of hanging rods.

2. The workpiece drying apparatus of claim 1, wherein The drying box is in the shape of a rectangle, and the drying box is fixedly installed on the support.

3. The workpiece drying apparatus of claim 1, wherein The left and right sides of the door leaf are provided with at least two guide wheels, and the outer side of the guide wheel is provided with a guide rail, and the guide rail is fixedly installed on the drying box.

4. The workpiece drying apparatus of claim 3, wherein The guide wheel is provided with a guide groove, and the guide rail is located in the guide groove; the guide groove and the guide rail cooperate to prevent the door leaf from moving forward and backward.

5. The workpiece drying apparatus of claim 1, wherein The inside of the drying box is also provided with a flow guide plate, which is in the shape of a triangle, and the flow guide plate is located directly below the opening of the air inlet pipe.

6. The workpiece drying apparatus of claim 1, wherein The inside of the drying box is provided with two groups of flow guide fans, which are centrally symmetrically arranged, and are used for blowing the hot air flowing into the front and rear positions of the drying box to the central position of the drying box.

7. The workpiece drying apparatus of claim 1, wherein The inside of the conveying support is also provided with a horizontal supporting part for supporting the transmission chain; the horizontal supporting part is located below the transmission chain.

8. The workpiece drying apparatus of claim 1, wherein The workpiece conveying device further comprises a power device, and the power device comprises a horizontal cylinder, which is horizontally fixedly installed on the inner wall of the drying box; a horizontal sliding block is fixedly installed on the output shaft of the horizontal cylinder, and the horizontal sliding block is slidingly arranged on a sliding rail, which is fixedly installed on the inner wall of the drying box; a vertical cylinder is fixedly installed on the horizontal sliding block, and a pinion is fixedly installed on the output shaft of the vertical cylinder.

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